UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
   PATE:  July 9, 1980

SUBJECT:  Errata for the April, 1980,  First External  Review Draft of the EPA
         Particulate Matter and Sulfur Oxides (PM/SO )  Criteria Document
                                                    /\

   FROM:  ECAOj EPA/RTP/N.C.
     T0:  Recipients of the first external  review draft (April  1980)  of the
          Particulate Matter and Sulfur Oxides criteria document
              The attached materials include corrigenda comments regarding contem-
         plated major text revisions, other lesser corrections (deletions/insertions),
         and reference clarifications and additions for various chapters of the
         April, 1980, external  review draft of the PM/SO  criteria document.
                                                        X

              The corrigenda comments on chapters 1, 3, and 14 signal  major
         revisions comtemplated for a second external  review draft based on
         comments and other new information obtained since finalization and
         release of the April external review draft.  The lists of errata mainly
         concern:  (1) errors in reference citations and (2) editorial  changes
         intended to clarify textual meaning or errors in technical  content.
         Complete reference lists for chapters 2, 3, 6, 9, and 13, including
         corrected citations, are provided.  There are no comments or errata
         sheets for chapters 4 or 8.

              These errata and descriptions of contemplated changes are being
         circulated at this time in order to facilitate informed and focused
         public discussion of EPA's criteria revision efforts.  Certainly,
         additional changes and, possibly, modifications to these contemplated
         changes may need to be made in response to public comments on the First
         External Review Draft received by July 31, 1980, and advice received
         from the Clean Air Scientific Advisory Committee (CASAC) of EPA's Science
         Advisory Board.  Full  and adequate opportunity for public comment on any
         of these contemplated changes or other modifications incorporated in a
         second external review draft to be made available to the public and
         CASAC.

         Atch
 EPA Form 1320-6 (Rev. 3-76)

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                                                                      7/9/80
      Chapter 1  Introduction, Summary,  and Conclusions SO /PM

                         Corrigenda
     Before listing specific errata (deletions/insertions) for Chapter 1  (Volume
I) of the April, 1980, External Review Draft of the EPA criteria document for
sulfur oxides and particulate matter,  certain general  comments should be noted
reguarding anticipated revisions in Chapter 1.
     First, major revisions planned to be made in later current chapters (2-14)  of
the document, as indicated in ensuing  corrigenda materials, will also be appropriately
reflected in revisions to be made in Chapter 1. For example, certain major revisions
in the text of Chapter 3 noted in corrigenda comments  for that chapter will  be
appropriately reflected in revision of text in Section 1.3.2 (pg. 1-19 to 1-43).
This especially includes introductory  materials (4 main points) to be inserted on
pg. 3-84 at the start of the discussion of comparison  of particulate matter measurement
techniques, as noted later in corrigenda comments for  Chapter 3.  Similarly, revisions
noted in those corregenda comments to  be made in Chapter 3 regarding the discussions
of specific studies comparing COH versus TSP and BS versus TSP measurement results
will be appropriately reflected in Chapter 1 revisions.
     Other major revisions in Chapter  14, noted in the later corrigenda comments
for that chapter, will also be reflected in revisions  of Section 1.5.5 (Community
Health Observation Studies) of Chapter 1.  Of particular importance are major
changes to be made in Tables 1-19 to 1-21 (on pg. 1-140 to 1-42) and accompanying
text regarding summarization of various expert reviewers' evaluations of key quanti-
tative community health studies.  Specific changes in those tables will include the
fol1owi ng:
                                                                                   13
     (1) In Table 1-19, deletion of all entries except those for studies by Lawther  ,
                                            11            fi
Glasser and Greenburg   , Martin and Bradley  , and Martin .
                                   -1-

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(2) In Table 1-20, deletion of entries for all studies except those by Greenburg196,
Lawther52'53, Martin16, Waller7, and Van der Lende74.
(3) In Table 1-21, deletion of entries for all studies except those by Douglas  and
Waller90, Lambert and Reid28, Lunn et al96'97, Ferris43, Sawicki181, Mostardi,117'258
Shy215, and Rudnick182.
     Discussion of tables 1-19 to 1-21, in the text on pg. 1-143 to 1-152 is  to be
revised such that comments on quantitive air quality levels associated with observed
health effects will generally be in terms of the original (COH, BS, TSP) particulate
matter measurement units employed in specific studies summarized in the table,
except for comments on interpretative evaluations by particular expert reviewers
that involved "translation" of COH or BS units into TSP units.  Further evaluative
comments are to be added on whether reasonable interconversions between COH,  BS,
and TSP measurement units can be made and, if so, in what manner and under what
circumstances. The impact of such interconversion or lack of sound bases to do so
on interpretation of the epidemiology data base for SO /PM will then be taken into
                                                      A
account in text revisions more specifically delineating key conclusions based on
the epidemiology literature.
     The implications of those conclusions, and others based on information discussed
in Chapters 11, 12, and 13, for development of health criteria for sulfur oxide and
particulate matter are to be delineated in an integrative health summary and  conclusions
chapter still in the process of being prepared for addition to the document.
Relevant text summarizing the most salient features of that chapter, once completed.
is to be added as the final portion of Chapter 1 (Volume 1).
                                        -2-

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                                                                             7/9/80
                                Chapter  1 -  PM/SO
                                      Errata
Page   Par/Line
      Delete
      Insert
1-18
1-19
1-23
1-27
1-39
1-63
1-64
1-88
3/7
2/3
1/7
--
1/4
Table 1-6
n
3/2,3
cyslone
-
Parting
Note: Table 1-2 is actual
text, and Table 1-3
10 or, at most, 30 percent
Ref. 118 (3 instances)
Ref. 118 (1 instance)
Polyester, acrylic...
cyclone
< before: 2. 5 pm
Party
ly Table 1-3 cited in the
is actually Table 1-2
10 to 30 percent
Replace with Reference 272
Replace with Reference 272

1-93   1/5,6



1-95   1/3

1-95   1/8,9


1-95   2/3



1-100  1/1


1-100  1/2



1-100  1/3




1-100  1/10

1-101  1/1
acid hydrolysis

One study...50 percent
One investigator (Lippmann,
1977) calculated that about
10 percent
are
or other agents...conditions.
may be

Period after:
of ammonia.
...absence
                                   (at concentrations <1 mg/m
                                   or 5 ppm, respectively)
                                   after:   alone

summarized in Tables 1-8 and 1-9,  of certain studies discussed
                                   in Chapter 12,

                                   at relatively high exposure
                                   levels (>1 mg/m ).  after:
                                   health effects

                                   , with relatively few having
                                   been observed^at concentra-
                                   tions <1 mg/m .   after:
ZnS04 and
pathophysiological
dependent

ZnS04(NH4)2S04

physiological

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Page   Par/Line
    Chapter 1 - PM/SOx Errata (continued)

      Delete                             Insert
1-101  1/3
1-104  Table 1-11
1-107  2/1
and increased flow resistance and
compliance,
to 1310 mg/m  (500 ppm)
                                   Table title -  line 2:
                                   13.1 mg/m
                       < before:
1-110  Table 1-13  Hazucha and Bates, 1975 from
                   "Reference" column, line 8

1-110  Table 1-13  Significant decrease in FVC,
                   FEV, 0, MMFR, MEFR from "Effects"
                   column, lines 6,7

1-110  Table 1-13
in a 180 liter chamber into
which 1310 mg/m  (500 ppm)
SOp was injected at a rate
of 20 ml/min
                                   Significant decrease in MEFR;
                                   FVC,  FEV.,  0, MMFR also de-
                                   creased  '

                                   ;  at 1 ppm, one subject ex-
                                   perienced  7% increase in
                                   flow resistance;  another,  a
                                   23% decrease after:   nasal
                                   breathing,  "Effects" column,
                                   line 17.
1-144  1/6

1-145  2/1

1-152  —
states                             sites

study                              studies

Delete last sentence of footnote
"a" for Table 1-24

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                              Chapter 2 -  PM/SO
                                    Errata     >
Page   Par/Line
Delete
Insert
2-10
2-26
2-27
2-27
2-30
2-34
2-34
2-34
2-35
2-50
2-52
2-59
2-60
2-61
2-63
2-63
2-66
2-68
2-78
3/5
3/9
2/3
4/3
1/7
3/2
3/3
3/5
Ref.
Ref.
1/8
2/3
2/5
2/3
2/5
3/7
3/7
1/2
1/9
-
-
Instrumentation for Environmental
Monitoring, Air, 1972
ditto
-
-
EQS0775001
EQS0775002
-
-

Methods of Air Sampling and
Analysis, 1972
Brosset and Perm (1978)
(1974)
1974,

1973
1975
1977
ed. , after: Dennis
, undated after: Corp.
Lawrence Berkley Laboratory,
1972
ditto
, undated after: Instruments
a after: 1975
EQS-0-775-001
EQS-0-775-002
U.S. Environmental Protection
Agency (1979c)
U.S. Environmental Protection
Agency (1979c)
New sentence after: 2-4.
"Although only every tenth
point is plotted, the statistica
analysis pertains to the
entire data set."
Intersociety, 1972
Stevens et al. (1978)
(1969)

1977 before: 1977a
1974
1976
1978

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Page   Par/Line
    Chapter 2 - PM/SO  Errata (continued)
                     J\

       Delete                            Insert
2-87   2/12
Current
2-87   2/14


2-90


2-100  2/10


2-111  3/4

2-120  1/8

2-120  4/2

2-139  3/2
Sampler (ES and T Outlook,  1978)
have a  values
Bernard

1979

new

Gooid
An article in Environmental
Science and Technology
(-, 1978) describes the
results for current -

Sampler.   The a  values
varied         ^

New page 2-90a, attached.
(Table 2-11)

Threshold Limits Committee
before:  1968

Barnard

1980

possible

Goold
 Note:   Completed  reference list attached.

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      TABLE 2-11.   FRACTIONAL  AEROSOL  PENETRATION  FOR  SELECTED SUBSTRATES
               AS  A FUNCTION OF  FACE VELOCITY  AND  PARTICLE  SIZE

FILTER: Gelman Type A, glass fiber
AP, cm Hg
V, cm/sec
1
11.2
1.5
16.9
3
32.7
10
108

Dp, Mm
0.035
0.10
0.30
1.0
FILTER: Ghia S2
AP, cm Hg
V, cm/sec
PENETRATION
<0.0001
<0.0001
<0.0001
<0.0001
37PJ 02,
1
23.4
<0.0001
<0.0001
<0.0001
<0.0001
teflon membrane,
3
64.1
<0.0001
<0.0001
<0.0001
<0.0001
2.0 Mm pore
10
187
0.0008
0.00054
<0. 00007
<0. 00002




Dp, Mm
0.035
0.10
0.30
1.0
FILTER: Whatman
AP, cm Hg
V, cm/sec
PENETRATION
<0.0002
<0. 00006
<0. 00007
<0. 00007
No.l, eel
1
6.1
0.0011
0.00008
<0. 00007
<0. 00009
lulose fiber
3
17.4
0.0005
<0. 00024
<0. 00022
<0. 00008

10
47.6





30
102

Dp, Mm
0.035
0.10
0.30
1.0
PENETRATION
0:56
0.46
0.16
0.019
0.52
0.43
0.044
0.034
0.34
0.13
0.0049
0.0044
0.058
0.0071
0.00051
0.00042
Source:   Liu et al.,  1978
                                      2-90a

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     for Presentation at the   International Symposium on Sulfur in the Atmosphere,
     7-14 Sept., 1977, Dubrovnik, Yugoslavia.

Whitby, K.  T., and K. Willeke.  Single particle optical counters:  principles
     and field use.  In:  Aerosol Measurement.  University of Florida Presses,
     Gainesville, FL, 1979.  p. 145-180.

Whitby, K.  T., and W. E. Clark.  Electrical aerosol particle counting and size
     distribution measuring system for the 0.015 to 1.0 mm size range.  Tellus.
     18:573-586, 1966.

Willeke, K., and J. J. McFeters.  Calibration of the CHAMP Fractionator,
     Particle Technology Publication No. 252, University of Minnesota,
     Minneapolis, MN, March 1975.

Willeke, K., and Whitby, K. T.  Atmospheric aerosols size distribution
     interpretation.  J. Air Pollut. Control Assoc. 25:529-534, 1975.

Wilsdon, B. H., and F. J. McConnell.  J. Soc. Chem. Ind. 53:385, 1934.

Wilson, W., et al.  Sulphates  in the Atmosphere.   Paper No. 76-30.06, 69th
     Annual Meeting of the  Air Pollution Control  Assoc., Portland, Ore.,
     U.S.A., June 27, 1976.

World Health Organization Selected Methods of Measuring Air Pollutants.  WHO
     Offset Publication No. 24, World Health Organization, Geneva, Switzerland,
     1976.

     Inhaled Particles.  Environ. Sci. Technol. 12(13):1353-1355, 1978.
                                    2-167

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                                                                       7/9/80
Chapter 3  Critical  Appraisal  of Air Quality Measurement Applications Corrigenda

     Before listing  specific minor errata  (insertions/deletions) for text contained
in Chapter 3 of the  April, 1980, External  Review Draft,  several  major changes to
be made in the chapter should be noted.  The proposed changes are based in part
on additional literature review and comments received since finalization and
release of the April, 1980, external review draft of the chapter.
     On pg. 3-84, after the first paragraph, new text is to be inserted discussing
the fact that difficulties in comparing  results from various bodies of epidemiologic
literature (e.g., British versus American) on particulate matter health effects
arise from differences in specific physical  and chemical properties of particulate
matter pollution indexed by different measurement techniques employed in such
studies.  In particular, the following points are to be  noted:
     (1) The British smoke (BS) sampling technique (widely used  in Britain and
Europe) mainly collects fine mode particles (<3-5 urn) and, using reflected
light, specifically  measures degree of reduction of reflectance  by the collected
particles. BS computed by the degree of  reduction in reflectance, although
sometimes highly correlated with TSP (r=0.8-0.9) and lead (r=0.8-0.9) as reported
by Ball and Hume (1977) and affected by  certain other materials  (Pedace and
Sansone, 1972), is most highly correlated  with the amount of graphitic carbon*
present (r=.96; Baily and Clayton, 1980).   Levels of carbon or other materials
affecting reflectance readings can, however, vary independently  of the total
mass of the collected (mainly fine mode) particles.  Thus, estimation of collected
particle mass indexed by BS readings is  dependent upon calibration of BS readings
against standard mass readings (weighing)  of collected particle  samples typifying

*  The term "graphitic carbon" is not meant to imply the three-dimensional
structure of graphite, but only to indicate a structure  similar  to that of
carbon black contained in soot.

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a given location, a 1.1 owing for calculation of corresponding mass concentration
levels (in yg/m ) by taking into account sampling periods and air flow rates.
Relationships between BS reflectance readings and mass concentrations (ug/m )
for a given location are most accurately determined empirically by reflectance
to mass calibrations derived on a site-by-site and, time-specific basis, given
the fact that relative mixes of va ious pollutants sampled could vary on an hour
to hour, day to day, or longer-term basis.  However, if the relative mix of
particulate matter sampled and the percentage of the total collected mass attribu-
table to graphitic carbon and other materials affecting light reflectance remains,
similar from time to time or site to site, as empirically demonstrated by repre-
sentative calibration determinations, then a common standard calibration curve
relating mass concentration (ug/m ) of particulates collected to reflectance
readings may be generally applicable for BS data obtained from thusly calibrated
sites shown to fit the standard curve well (Wallin, 1965).
     (2) Particulate matter measurements by certain American sampling techniques
(e.g., the AISI tape sampler method) which uses light transmittance as the
physical property measured (Katz and Sanderson, 1958), are also most strongly
affected by graphitic carbon levels present among particulate matter mass collected
(mainly fine mode, <5um size-range).  Thus, similar considerations and limitations
as described above for the BS method apply to the AISI tape sampler light trans-
mittance method in regard to converting transmittance readings (coefficient of
haze units or COHS for the AISI method) to estimates of particulate mass collected.
That is, very precise estimates of particulate mass collected or air concentration
(in ug/m ) require that the transmittance readings (in COHS) be calibrated
against representative corresponding sample weights on a site-and time-specific
basis.
                                        -2-

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However, practical application of the AISI light transmittance method, as in the
case of BS measurements, usually precludes other than occasional representative
calibrations for a given sampling site due to personnel and other resource
limitations.  Rather, to the extent that similar relationships of mass to trans-
mittance readings are consistently obtained at a given site through repeated
calibrations over time, then use of a standard calibration curve for converting
transmittance readings (COHS units) to corresponding particle mass estimates for
that site appears to be reasonably well justified.
     Analogously, to the extent that a relatively similar mix of pollutants
(e.g. graphitic carbon) most strongly affecting light transmittance is represented
among the total mass of particulate matter collected at various other sites, it
appears reasonable to employ a common standard calibration curve for conversion
of transmittance values to estimates of particulate mass collected at those
sites by the AISI method, especially if representative calibration data are fit
well by the standard curve.  Conversely, substantial variations in the pollutant
mix, e.g. in the percentage of graphitic carbon represented in the overall
particulate mass collected either for the same site at different times or between
different sites, should be reflected by notable deviations from the more usually
applicable calibration curve and would require generation of another one on a
site-and time-specific basis. The likely general liability of any particular
calibration curve for estimation of collected particulate mass concentrations
based on light transmittance readings appears, then, to be amenable to empirical
testing in terms of:  (a)  assessment of goodness of fit of data for specific
sites to the particular model defining the given calibration curve, and (b)
assessment of similarities of chemical composition (including percentage of
graphitic carbon and other substances affecting light transmittance) of atmospheric
particulate matter sampled at different times at the same site or between different
sites.
                                 -3-

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     (3)  Since both light reflectance (BS) and transmittance (AISI tape
sampler) measurement methods are both most strongly affected by levels of
graphitic carbon among the particulate matter mass collected, 1t might
be assumed that results obtained by each method should be readily translatable
into equivalent measurement units employed by the other method (I.e., reflectance
or darkness index BS readings versus COHS units for the AISI tape sampler), using
emperically-derived calibration curves. Similarly, it might be assumed that, if
particles of the same size-range are collected and valid curves exist for estimation
of particulate matter mass levels based on either light absorption or transmittance
readings for a given site, equivalent particulate matter mass or air concentration
estimates should be derivable from reflectance or transmittance readings for a
given set of BS or COHS data points on a site-and time-specific basis.  Those mass
concentration estimates, furthermore, would then presumably provide a reasonable basis fot
comparisons of particulate matter levels in the same size-range from one site or
time to another, where atmospheric aerosols of similar chemical composition
are sampled.   This might be the case, for example, in terms of samples of
certain urban aerosols containing similar pollutant mixes derived from relatively
similar emission sources, but not obtained from collection sites markedly dominated
by different single emission sources.    The interconversion (comparability), or
lack thereof, of particulate matter mass estimates derived from light reflectance
versus light transmittance measurement techniques, therefore, should be empirically
testable in terms of goodness of fit of data from a given site or time in relation
to curves or equations modeling relationships between results from the two
techniques.
                                   -4-

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     The participate matter measurements (in terms of mass concentrations
in yg/m ) based on standard light reflectance (BS) or transmittance
(AISI tape sampler) methods most often used in community health epidemiology
studies might also be expected to approximate fine mode particulate
matter mass estimates determined by gravimetric methods, in view of
procedures for the former two methods being reported to result mainly in
collection of fine mode fraction particles (<3 um).  However, factors
influencing estimation of mass from BS reflectance or COH units could be
such to result in quantitative mass estimates different from those
obtained for fine particulate mass as determined by gravimetric methods.
     (4) Conversion of particulate matter measurement results from
either light reflectance (e.g., BS) or transmittance (e.g., AISI tape
sampler) methods versus high-volume sampler results (expressed in ug/m
TSP) involve additional considerations beyond those outlined above.
First, the high volume sampler has an inlet which is 50% efficient in
collecting 25-30 urn sized particles and therefore collects coarse mode
particles not sampled by the other two methods as standardly employed.
Also, graphitic carbon levels and other materials most strongly affecting
light reflectance and transmittance readings and fine mode particulate
mass levels (indirectly indexed by the same methods) can vary independently
of coarse mode particle levels.  They may, therefore, increase or decrease
in directions opposite to changes in total suspended particulate (TSP)
matter mass. It is thusly not surprising that quite different relationships
between particulate matter mass estimates based on BS or COHS readings
and TSP levels can exist from site to site or from sampling
time to sampling time at the same site.
                                        -5-

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Reliable determination or estimation of likely TSP levels present at particular
sampling points (times/places) based on corresponding BS or COHS data, then,  may
only be possible or justifiable within very circumscribed limits and highly
dependent upon development of applicable empirically-derived intercomparison
models in a fashion analogous to obtaining calibration or interconversion curves
for BS and COHS readings discussed above.
     On pg. 3-102, immediately before the last paragraph and heading for Section
3.5.5, new text is to be added which notes that three recently reviewed papers
(by Ledbetter and Cerepaka, 1980; Swinford and Kolaz, 1980; and Heindryckx,
1975) report on relationships between COH and TSP as determined by comparisons
of results obtained from collocated high volume and AISI tape samplers.  In each
case, for data obtained from sampling site locations as diverse as areas in
Texas, Illinois, and Belgium, considerable scatter was found for individual
paired observations, suggesting great uncertainty in predicting 24 hour TSP
levels from short-term (1 hour) COH readings.  It may be possible to improve  on
the relationships by using seasonal calibrations at each site and nonlinear
models calibrated in a manner similar to the ASTM method or the British Standard
1747 Part 2 procedure for smokeshade in order to convert COH readings to units
of mass for comparison with TSP data.  However, these studies, and other literature
cited above in this chapter, all appear to indicate that COH measurements are
generally not directly relatable to TSP levels.
     On pg. 3-103, immediately before the last paragraph, new text is to be
inserted which notes that a typical finding among the various BS/TSP comparison
studies cited in the preceeding paragraph is that considerable scatter or variability
                                    -6-

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exists for individual paired observations for 24 hour BS and corresponding TSP
measurements analyzed in the various studies.  However, greater consistency
appeared to exist for BS-TSP relationships expressed as long-term (monthly or
longer) averages of the paired 24 hour observations; and efforts were made in
the different studies to derive equations or models (mainly linear regression)
that best fit the observed data obtained from different individual sites, cities
and time periods (e.g., winter heating seasons versus summer nonheating seasons).
     On pg. 3-116, immediately before the last paragraph, new text is to be
inserted noting that neither the Mage (1980)* bounded nonlinear model derived
primarily from the annual  average (mean) BS-TSP comparison data of Commins and
Waller (1967) as summarized by Holland et al. (1979) nor any other presently
available model provides a generally reliable basis for interconversion of
corresponding individual 24 hour BS-TSP data points, except perhaps at high
levels of BS (>. 500 pg/m ).  The Mage (1980) and other models such as those
discussed in Lee et al. (1972) or Pashel and Egner (1980), however, may provide
better ore more reliable fits for BS-TSP monthly or annual average data.
     On pg. 3-121, there is to be deleted the last three paragraphs discussing
the impact of the use of a sampling flow rate of 0.72 liters per minute by
Pashel and Egner (1980).  Also to be deleted are Figure 3-13 on pg. 3-122, all
text but the last paragraph on pg. 3-123, and Appendix C of Chapter 3.  These
deletions are based on  a personal communication from Pashel and Egner indicating
that a 0.72 liter per minute flow rate was erroneously reported in their draft
1980 Atmospheric Environment article; rather, according to their personal communi-
cation, a 1.5 1/min. flow rate more typically employed in generating BS data
used by British epidemiologists was also used by them in producing the data
reported in their 1980  paper.
* Manuscript now in preparation.
                                        -7-

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     Detailed discussion of possible methodological errors in the Pashel and
Egner study, starting on pg. 3-118, are to be moved to appendices and only brief
summary statements regarding such included in the main text of Chapter 3. Also,
on pg. 3-128, the paragraph immediately before the heading for Section 3.5.5.3.
is to be entirely deleted and replaced with the following new text: Another
possible explanation for the particular pattern of results obtained by Pashel
and Egner is suggested by the fact that all of their annual mean data for rural,
residential, and commercial sites studied fall on or very near the BNLM (Mage,
1980) model curve in Figure 3-15 on pg. 3-127, whereas data for seven of eleven
industrial sites fall rather far to the right of the BNLM curve.  The possibilty
exists that high levels of either noncarbonaceous fine-mode particles, coarse
mode particles, or both in fugitive dust or stack emissions from nearby industrial
sources in the absence of much carbonaceous material from fossil fuel combustion,
                                                              o
result in the relatively higher TSP readings (mostly >100 pg/m )  obtained at
those sites.  If such were the case, the data would illustrate a likely general
limiting factor in making meaningful comparisons or interconversions between BS
and TSP data, even on a long term annual mean basis.  That is, whereas the BNLM
or other analogous models might fit well BS-TSP comparison readings obtained
from sites sampling aerosols dominated by graphitic carbon and other particles
from fossil fuel combustion sources, such models would not likely apply in
markedly different circumstances, eg. in dry rural areas of the American Southwest
or sites strongely affected by fugitive dust from industrial facilities.  Especially
highly variable BS-TSP relationships can be expected in such situations where
large amounts of coarse mode crustal particulate matter or mechanically produced
coarse mode particles from anthropogenic activities exists in the air in the
                                         -8-

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presence of little fine-mode carbon or other materials from fossil fuel combustion
sources.
     On pg. 3-141, additional sentences are to be added to the last paragraph,
as follows:  On the other hand, another possible explanation for the marked
divergence of the data set from other published results for BS-TSP comparisons
(mainly sampling urban aerosol  mixes dominsted by fossil fuel combustion emission
products) is that significant amounts of particles from fugitive dust or other
emissions from nearby industrial facilities may have contributed to relatively
high TSP readings (ca. 100 - 200 yg/m ) in the presence of low BS readings (<_ 25
yg/m ).  Such results would be illustrative of one type of circumstance severely
limiting determination of reliable or meaningful relationships between corresponding
BS-TSP data points.
                                      -9-

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                              Chapter 3 - PM/SO
                                    Errata     >
Page   Par/Line
       Delete
      Insert
3-1    2/12
3-1    2/13
3-25
3-29
3-42
3-44
3-52
3-59
3-62
3-62
3-63
3-67
3-77
2/2
1/11
2/6

3/2
3/5
1/3
2/7
3/4
1/3

3-82   2/12
3-85   I/last
3-89


3-89   -/last
3-91   2/7
3-93   1/3
Higgins and Ferris, 1978

Speizer and Ferris, 1978

dates
Adams et al., 1971
are
air (column 4, line 17)

reflectance

MckEllison (1964)
Page 3-52
"period" after:  December 15
(column 4, line 8) Moulds,
1961
(Column 5, line 14) 10 cm

Mck
(Entire table  heading)
 length /mass
 can
National Academy of Sciences,
1978a
National Academy of Sciences,
1978b
was after:   which
as
error
National Survey after:  for
darkness
Ellison (1968) after:  by
Ellison (1968)
Page 3-57
, since
Moulds, 1962
10 mm
uncorrected after:  usage of
Relationship of coefficient
of Haze to Particle Counts
(Np), 0.3 - 2.0um, Measured
in New York City
Source:  Ingram (1969)
      -2
length  -mass
could

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                       Chapter 3 - PM/SOx Errata (continued)
Page   Par/Line           Delete                            Insert
3-94
3-97
3-110
3-113
3-116
3-121
3-121
3-128
3-135
3-138
2/1
2/1
1/10
1/18
2/4
1/3
3/2
1/1
3/4
2/4
1968
-
Table 3-8
Dalager (1975)
one
R > 50%
-
2
sum of x »
1978
et al. after: Muylle
Table 3-9
Dalager (1974)
two
R < 50%
the effect of after:
chi -square statistic






showing

sampler after: hi-volume
(1972)
(1977)

Note:   List of additional recommended references attached.
Note:   Completed reference list attached.

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   Additional References Recommended for Consideration  in Chapter  3,  PM/SO
                                                                          f\
Bailey, D. L. R. , and P. Clayton.  The measurement of suspended particulate
     and carbon  concentration  in the atmosphere using standard smoke  shade
     methods.  Report LR 325 (AP), Warren Spring Laboratory, Stevenage,  1980.

Heindryckx, R.   Significance of total suspended particulate matter, as determined
     by optical  density measurements.  BECEWA, 1974.  (as cited by Kretzschmar,
     1975).

Ledbetter, J. 0., and B. P. Cerepeka.  Obscuration versus aerosol  concentration.
     J. Environ. Sci. Health A15(2):173-181, 1980.

Rosen, H., A. D. A. Hansen, R. L. Dod, T. Novakov.  Soot in urban  atmospheres:
     Determination by an optical absorption technique.  Science 208:741-744,  1980.

Swinford, R.  L., and D. J. Kolaz.  Field correlation of TSP data from a  continuous
     particulate monitor and high volume air samples.   Paper 80-38.3, 73rd
     APCA, Montreal, Canada, 1980.

Wallin, S. C.  Calibration of  the D.S.I.R. Standard Smoke Filter for  Diesel
     Smoke.   Int. J. Air Wat.  Poll. 9:351-356, 1965; and discussions  by
     Lindsey, A. J., M. Corn,  S. R. Craxfor, L. R. Reed, and S. C. Wallin,
     IBID, 10:73-76, 1966.

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3.7  REFERENCES

Apling, A.  J. ,  A.  W.  C.  Keddie,  M-L.  P.  M.  Weatherley, and M.  L.  Williams,
     The High Pollution Episode  in London,  December, 1975. LR263(AP), Warren
     Spring Laboratory,  Stevenage, England, 1977.

Bailey, D.  L.  R.,  and H.  L.  Nicholson.   Smoke Filter Calibration Curve:   1-cm
     Filter Holder.   LR89(AP), Warren Spring Laboratory, Stevenage, England,
     October 1968.

Ball, D. J., and R.  Hume.   The  relative importance of vehicular and domestic
     emissions  of dark smoke in  Greater London in the mid-1970's, the
     significance of smoke shade measurements, and an explanation of the
     relationship of smoke shade to gravimetric measurements of particulate.
     Atmos. Environ.  11:1065-1073, 1977.

Barnes, R.   Duplicate measurements of low concentrations of smoke and sulphur
     dioxide using two "National Survey" samplers with a common inlet.  Atmos.
     Environ.  7:901-904,  1973.

Bourbon, P.  A Propos de la Mesure des Poussieres et de 1'Anhydride Sulfureux,
     Etude Realisee a la Demande de la C.E.E., 1980.

British Standards Institution.   Methods for the Measurement of Air Pollution.
     Part 2:  Determination of Concentration of Suspended Matter.  B.S.  1747,
     British Standards Institution, London, England, 1963.

British Standards Institution.   Methods for the Measurement of Air Pollution.
     Part 3:  Determination of Concentration of Sulphur Dioxide.  B.S.  1747,
     British Standards Institution, London, England, 1963.

Cohen, A.  L.  Dependence of Hi-Vol measurements on airflow rate.  Environ.
     Sci.  Technol.  7:60-61, 1973.

Clayton, P.  The Filtration Efficiency of a Range of Filter Media for Sub-
     Micrometre Aerosols.   LR280(AP), Warren Spring Laboratory, Stevenage,
     England, 1978.

Commins, B. T., and R. E.  Waller.  Observations from a  ten year study of
     pollution at a site in the city of London.  Atmos. Environ. 1:49-68,
     1967.

Dalager, S.  Correlations between methods for measuring suspended particulates
     in ambient air.  Atmos. Environ. 9:687-691, 1975.

Dalager, S.  Samenligning af metoder til maling af  svaevestov  og svovldioxid.
     In:   Luft kvalitets undersogelese  Aalborg.  1.   Svaevestovmalinger
     Norresundby, April-Juli 1973.  Environplan A/S,  Copenhagen, Denmark,
     April 1974. "

Dams,  R.,  and R. Heindryckx.  A  high-volume air sampling  system  for  use with
     cellulose filters.  Atmos.   Environ. 7:319-322, 1973.
                                     3-142

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Douglas, J. W. B., and R. E. Waller.  Air pollution and respiratory infection in
     children.  Br. J. Prev. Soc. Med. 20:1-8, 1966.

Eickelpasch, D., and R. Hotz.  Comparison of various outer air measurements.
     Stahl und Eisen 98:469-475, 1978.

Ellison, J. McK.  The estimation of particulate air pollution from the soiling
     of filter paper.  Staub Reinhalt. Luft 28:28-36, 1968.

Ferris, B. G. Jr., J. R. Mahoney, R. M. Patterson, and M. W. First.  Air quality,
     Berlin, New Hampshire, March 1966 to December 1967.  Am. Rev. Respir.
     Dis. 108:77-84, 1973.

Firket, M.  Bull. The cause of the symptoms found in the Meuse Valley during
     the fog of December, 1930.  Bull. Acad. R. Med. Belg. 683-741, 1931.

Fry, J. D.  Determination of Sulphur Dioxide in the Atmosphere by Absorption
     in Hydrogen Peroxide Solution—The Effect of Evaporation of the Solution
     During Sampling.  SSD/SW/M.246  Central Electricity Generating Board,  South
     Western Region, England, April 1970.

Hagen, L. J., and N. P. Woodruff.  Air pollution from duststorms in the Great
     Plains.  Atmos. Environ. 7:323-332, 1973.

Hale, W. E. , and N.  E. Waggoner.  The overall variability of CoH unit values and
     methods for increasing the accuracy of readout.  J. Air Pollut. Control
     Assoc. 12:322-323, 1962.

Harrison, W. K. Jr., J. S. Nader, and F. S. Fugman.  Constant flow regulators for
     the high-volume air  sampler.  Am. Ind. Hyg. Assoc. J. 21:115-120, 1960.

Hemeon, W.  C. L., G. F. Haines, Jr., and H. M. Ide.  Determination of haze  and
     smoke  concentration  by  filter paper samplers.  Air Repair 3:22-28, 1953.

Herpertz,  E.  A  simple  long-term measuring procedure for determining the  dust
     concentration  in  the near-ground air layer (LIB Method).  Staub
     Reinhalt.  Luft  29:12-18, 1969.

Holland, W. W.,  A.  E.  Bennett,  I. R. Cameron, C. du V.  Florey, S.  R. Leeder,
     R.  S.  F. Schilling,  A.  V.  Swan, and R. E. Waller.  Health effects of
     particulate pollution:  reappraising the evidence.  Am. J.  Epidemiol.
     110:527-659,  1979.

Horvath,  H. ,  and R.  J.  Charlson.  The direct optical measurement of atmospheric
     air  pollution.  J.  Am.  Ind. Hyg. Assoc. 30:500-5^9, 1969.

Human  Studies  Laboratory.   Health Consequences of Sulphur  Oxides:  A Report
     from CHESS, .1970-1971.  EPA-650/1-74-004, U.S. Environmental  Protection
     Agency,  May 1974.
                                      3-143

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Ingram, W. T.   Smoke Curve Calibration.  APTD-0928, U.S. Department of Health,
     Education, and Welfare, Public Health Service, March, 1969.

Ingram, W. T.,  and J.  Golden.   Smoke curve calibration.  J. Air Pollut. Control
     Assoc. 23:110-115, 1973.

Johnson, N. L.   Systems of frequency curves generated by methods of translation.
     Biometrika 36:149-176, 1949.

Katz, M.  Guide to the Selection of Methods for Measuring Air Pollutants.
     WHO/AP/67.29,  World Health Organization, Geneva, 1967.

Katz, M., and H. P. Sanderson.  Filtration methods for evaluation of aerosol
     contaminants.  In:  Symposium on Instrumentation in Atmospheric Analysis.
     Special Technical Publication No. 250, American Society for Testing  and
     Materials, Philadelphia, PA, 1958.  pp. 29-41.

Kretzschmar, J. G.  Comparison between three different methods  for the estimation
     of the total suspended matter in urban air.  Atmos. Environ. 9:931-934,
     1975.

Laskus, L.  Untersuchung der Korngrossenverteilung des atmospharischen
     Staubes in Bodennahe.  Staub Reinhalt.Luft 37:299-306, 1977.

Laskus, L., and D. Bake.  Erfahrungen bei der Korngrb'ssenanalyse von
     Luftstauben mit dem Andersen. Kaskadenimpaktor.  Staub Reinhalt.  Luft
     36:102-106, 1976.

Lawther, P. J., A. G.   F. Brooks, P. W. Lord, and  R. E. Waller.  Day-to-day
     changes in ventilatory function  in relation  to the environment.   Part
     I. -  Spirometric  values.  Part II.  Peak expiratory flow values.  Environ.
     Res.  7:27-53, 1974.

Lawther, P. J., A. G.   F. Brooks, P. W. Lord, and  R. E. Waller.  Day-to-day
     changes in ventilatory function  in relation  to the environment.   Part
     III.  Frequent measurement of peak flow.  Environ.  Res. 8:119-130, 1974.

Lawther, P. J., P. W.   Lord, A. G. F.  Brooks, and  R. E. Waller.  Air  pollution and
     pulmonary  airway  resistance: a six year study with three  individuals.
     Environ.  Res. 13:478-492, 1977.

Lee, R. E. Jr., J. S.   Caldwell, and G. B. Morgan.  The  evaluation  of methods
     for measuring suspended particulates in air.  Atmos.  Environ.  6:593-622,
     1972.

Lee, R. E., Jr.  Measuring particulate matter in  air.   In:   Instrumentation
     for Monitoring Air Quality.  Special Technical Publication No.  555,
     American  Society  for Testing and Materials,  Philadelphia,  PA,  1974.
     pp. 143-156.
                                      3-144

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Lippman, M.  Review of cascade impactors for particle size analysis and a new
     calibration for the Casella Cascade Impactor.  J. Wm. Ind. Hyg. Assoc.
     20:406, 1959.

Lisjack, G. J.  Comparison of High Volume and Tape Sampler Data, 1976.  Allegheny
     County Health Department, Bureau of Air Pollution Control, Pittsburgh,  PA,
     May 1977.

Liu, B. Y. H., P. Y. H. Pui, K. L. Rubow, and G. A. Kuhlmey.   Research in Air
     Sampling Filter Media.  Progress Report EPA Grant 804600, University of
     Minnesota, Minneapolis, MN, May 1978.

Logan, W. P. D.  Mortality in the London fog incident, 1952.   Lancet 1 (6755):
     336-338, 1953.

McFarland, A. R.  Test Report -- Wind Tunnel Evaluation of British Smoke Shade
     Sampler.  Air Quality Laboratory Report 3565/05/79/ARM, Texas A&M Univer-
     sity, College Station, TX, May 1979.

Mage, D. T.  An empirical model for the Kolmogorov - Smirnov Statistic.  J.
     Environ. Sci. Health Part A. 15: 1980c.

Mage, D. T.  An explicit solution for SB parameters using four percentile
     points.  Technometrics 22:247, May 1980a.

Mage, D. T.  Frequency distributions of hourly wind speed measurements.
     Atmos. Environ.  14:367-374, 1980b.

Martin, A., and F. R. Barber.  Some measurements of loss of atmospheric sulphur
     dioxide near foliage.  Atmos. Environ. 5:345-352, 1971.

McKee, H. C., R. E. Childers, and 0. Saenz, Jr.  Collaborative Study  of Reference
     Method for the Determination of Suspended  Particulates in the Atmosphere
     (High Volume Method).  APTD-0904, U.S. Environmental Protection  Agency,
     Research Triangle Park, NC, June 1971.

Ministry of Pensions and National Insurance:  Report  on an  Enquiry  into the
     Incidence of Incapacity for Work.   II.  Incidence of Incapacity  for Work
     in Different Areas and Occupations.  Her Majesty's Stationery  Office,
     London, England, 1965.

Moulds, W.  Some  instrumental variations arising  in routine air pollution
     measurements.   Int. J. Air Water Pollut. 6:201-203,  1962.

Muyulle, E., D. Hachez, and G. Verduyn.  An evaluation of measuring methods
     for particulate matter.   In:  Air  Pollution  Reference  Measurement Methods
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     Elsevier Scientific Publishing  Co., Amsterdam, Netherlands,  1978.
     pp.113-125.
                                      3-145

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Natanson, G.  Referenced by N.  A.  Fuchs in The Mechanics of Aerosols, MacMillan,
     New York, 1964.   p. 112.

National Research Council.   Airborne Particles.  National Academy of Sciences.
     Washington, DC,  1978a, pp.  243-288.

National Research Council.   Sulfur oxides.  National Academy of Sciences.
     Washington, DC,  1978b.  pp. 180-209.

Organization for Economic Co-operation and Development.  Methods of Measuring
     Air Pollution.   Paris, France, 1965.

Park, J. C., D.  M.  Keagy, and W. W. Stalker.   Developments in the use of the
     AISI automatic smoke sampler.  J.  Air Pollut. Control Assoc. 10:303-306,
     1960.

Pashel G. E., and D.  R. Egner.   A comparison of ambient suspended particulate
     matter concentrations as measured by the British Smoke Sampler and the
     High Volume Sampler at 16 sites in the United States.  Atmos. Environ.,
     in press, 1980.

Patterson,   R. K.  Aerosol contamination from High-Volume Sampler exhaust.  J.
     Air Pollut. Control Assoc.  30:169-171, 1980.

Pedace, E.   A., and E. B. Sansone.   The relationship between "soiling index"
     and suspended particulate matter concentrations.  J. Air Pollut. Control
     Assoc. 22:348-351, 1972.

Ruppersberg, G.   Die anderung des maritimen Dunst - Streukoeffizienten mit der
     relativen Feuchte.  Meteorol. Forschungsergeb.  Reihe B, 4:37-60, 1971.

Saucier, J. Y.,  and E. B. Sansone.  The relationship between transmittance and
     reflectance measurements of "soiling index".  Atmos. Environ. 6:37-43,
     1972.

Simon, M. J.  Comparison of High Volume and Tape Sampler Data, 1973-75.
     Allegheny County Health Department, Bureau of Pollution Control, Pittsburgh,
     PA, 1976.

Stalker, W. W.,  Dickerson, R.  C., and G. D. Kramer.  Atmospheric sulfur  dioxide
     and particulate matter:  a comparison of methods of measurements. J. Am.
     Ind. Hyg. Assoc. 24:68-79, 1963.

Steel,  R. G. D., and J. H. Torrie.  Principles and Procedures of Statistics,
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Stober, W.   Sampling and evaluation of aerosols under biomedical aspects.
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Sullivan, J. L.   The calibration of smoke density.  J. Air Pollut. Control
     Assoc. 12:474-478, 1962.
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     England, August 1962.

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     Instruction Manual.  Warren Spring  Laboratory,  Stevenage, England, 1966.

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     Daily Instrument for Measuring Smoke and Sulphur Dioxide.  Warren Spring
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     Quality Control Tests on Analyses of Samples,  October 1975 to  February
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                                      3-147

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           Chapter 4 PM/SO
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SOX2B/A  6-9-80 receded

county having the highest annual average value.   It is not possible to determine
whether concentrations are more or less uniform across the county or whether
they are localized.  However, several general impressions are obtained about
national TSP conditions.  High concentrations can be found in almost every
State.  Many populated counties have high concentrations (for example, New
Jersey-New York City, Pittsburgh, Harrisburg, Chicago, and Los Angeles).
Several sparsely populated counties also have high concentrations.   Arid regions
as well as industrialized counties have high levels.
     The AQCR attainment status for the daily NAAQS is shown in Figure 5-19,
which is based on the same 1977 NADB TSP data.   The same comment made above
applies to the 24-hr measurements.  A violation of NAAQS for TSP at one loca-
tion does not necessarily imply a higher health risk for the entire population of
that area.  The health implications even for those living near a site in vio-
lation are not clear.  Populations living in attainment areas but exposed to TSP
high in trace metals, for example, might have a high health risk.
     A closer look at the site descriptions for stations that recorded violations
suggests that the reasons for violation are quite variable.  As discussed earlier,
it seems clear that industrial sources contribute significantly to TSP levels at
many sites.  This is not so obvious at other sites, however.  Some extremely
high concentrations experienced at monitors in Arizona, New Mexico, and elsewhere
are most likely associated with surface dust suspended by the wind.  Without a
careful site inventory or perhaps detailed analysis of TSP chemical and elemental
composition, the specific reasons for TSP violations are unknown.
5.2.1.6  Severity of Peak TSP Concentrations—The geographic displays of attain-
ment status are only one way of conveying the extent of the TSP pollution problem.
To indicate the severity of TSP ambient exposures, the 90th percentile concen-
                                       5-58

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SOX2B/A  6-9-80 receded

tration of the 24-hr measurements was examined for all  4008 sites in the 1977
NADB.   The concentrations of TSP and other air pollutants have been widely re-
ported to be log normally distributed (Larsen, 1971).   This statistical  relation-
ship,  however, appears inappropriate at the high and low ends of the distribution
(Mage and Ott, 1978).  Because the extreme values at the high end are subject
to wide scatter, the 95th or 99th percentile was found to be less representative
of the severity of high TSP levels.   The 90th percentile was therefore chosen
as being a more stable indicator.  It represents the TSP level that is exceeded
on approximately 36 days of the year.
     Table 5-16 shows, for each AQCR, the number of TSP monitoring sites whose
90th percentile concentrations were <100, 100-200, 200-260, and >260 ug/m .   In
Figure 5-20 the AQCR's having at least one monitoring station whose 90th per-
centile exceeds 260 ug/m  are displayed.  AQCR's in Montana, Arizona, and New
Mexico have a large number of monitoring sites for a relatively sparse popu-
lation (approximately twice EPA's minimum requirement).  A number of these sites
are near smelters.  Hence, the high levels do not necessarily imply high popu-
lation exposure to TSP.  In addition, windblown soil contributes to the higher
levels in these States.  In the Northeast and East, the elevated TSP concen-
trations reflect the higher density of industrial and urban emissions.  In these
cases, the high levels (in Pennsylvania, Ohio, New Jersey, New York, Connecticut,
and Massachusetts) indicate a larger population exposed to peak TSP concentra-
tions.  The high 90th percentile levels in North Dakota, Nebraska,  Iowa, and
Colorado perhaps reflect an influence of fugitive emissions from agriculture.
     Figure 5-21 shows the number of AQCR's whose monitors have their 90th percen-
tile TSP concentration within the various categories.  Of the country's 254 AQCR's,
only 20 had air quality to the extent that none of their 90th percentiles exceeded
100 ug/m .  One hundred and fifty-four AQCR's had 90th percentile  values  in at
                                       5-60

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6-32



6-37



6-42



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6-42



6-46



6-47



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6-72



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6-74



6-87



6-97
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2/9



-/5



2/2



2/4



2/14



5/5



2/10



3/2



2/4



2/12



-/9



2/5



2/6
2/4
1979



1979



1977



Low, 1971



1979



1979



Durham et al. 1979



1979



1979



1974



1979



1979



SI inn et al. (1979)



1975



1975



White and Roberts (1975)



Lewis and Macias (1979)



Schurmeier



1976
1978a



1978



1978



Low,1969



1978



1978



Durham et al. 1978



1980



1977



1976



1978



1978



SI inn et al. (1978)



1980



1980



White and Roberts (1980)



Lewis and Macias (1980)



Schiermeier



1976a
Note:  Completed reference list attached.

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6.7  REFERENCES.

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Charlson, R.  J.,  A.  H.  Vanderpol, D. S. Covert, A. P. Waggoner, and N. C.
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Coughanowr, D.  R., and F. E. Krause.  The reaction of S09 and Oy in aqueous
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Covert, D.  W.  A study of the relationship of chemical composition and humidity
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Cronn D.  R., R. J. Charlson, R. L. Knights, A. L. Crittenden, and B.  R. Appel.
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Demerjian K., J.  A.  Kerr, and J. Calvert.  Mechanism of photochemical smog
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Draftz, R.  G., and K. Severin.  Microscopical Analysis of Aerosols Collected
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Draftz, R.  G.  Aerosol Source Characterization Study  in Miami, Florida:
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Durham, J.  L., R. K. Patterson, and  R. G. Draftz.  Carbon  in Denver's Urban
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Durst, C. S., A. F. Crossley, and N. E. Davis.  Horizontal diffusion in the
     atmosphere as determined by geostrophic trajectories.  J. Fluid Mech.
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Dzubay, T. G.  Chemical element balance method applied to dichotomous sampler
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Easter, R. C., D. F. Miller, and W. E. Wilson.  Kinetic simulation of the
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Eatough, D.  J., T. Major, J. Ryder, M. Hill, N. F. Mangelson, N. L. Eatough,
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     stability of sulfite species in aerosols.  Atmos. Environ. 12:262-271,
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Eatough, D.  J., W. P. Green, and L. D. Hansen.  Oxidation of sulfite by
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Eliassen, A.  The Trajectory Model:  A Technical Description.  Norwegian
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Erickson, R. E., L. M.  Yates, R. L. Clark, and C. M. McEwen.  The reaction of
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Ferber, G. J., K. Telegada, J. L. Heffter, and A. E. Smith.  Air concentrations
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Fisher, B. E. A.  The calculation of long term sulphur deposition in Europe.
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Fowler, D.,  and M. H. Unsworth.  Dry deposition of sulfur dioxide on wheat.
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Friedlander, S. K.  A review of the dynamics  of sulfate containing aerosols.
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Friedlander, S. K.  Chemical element balances  and identification of air  pollu-
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Gage, S. J., L. F. Smith, P.  M.  Cukor, and B. L. Nieman.  Long-range transport
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Marker A. B. , L. W. Richards, and W. E. Clark.  The effect of atmosperhic S02
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Hosier, C.  R.   Low level inversion frequency in the contiguous United States.
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McNeils, D. N.,  L.  A.  Ripperton, W.  E.  Wilson, P.  L. Hanst, and B. W. Gay.
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Penkett, S. A., B. M. R. Jones, K. A. Brice, and A.  E. J.  Eggleton.  The
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Pierson, W. R., and P.  A.  Russell.  Aerosol carbon  in the  Denver area  in
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Rodhe, H.  Budgets and  turn-over times of atmospheric sulfur compounds.
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Rodhe, H., C. Persson,  and 0. Akesson.  An investigation  into  regional trans-
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Schiermeier, F.  A., F.  Pooler, N.  V.  Gillani, J. F. Clarke, J. K. S. Ching,
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Smith, B. M., J. Wagman, and B. R. Fish.  Interaction of airborne particles
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Smith, F. B., and G.  H. Jeffrey.  Airborne transport of sulfur dioxide  from
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Smith, F. B., and R.  D. Hunt.  Meteorological aspects of the  transport  of
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Whitby, K. T. and G. M. Sverdrup.  California Aerosols:  Their  Physical and
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Whitby, K. T., R. B. Hausar, and B. Y. H. Lui.  The Aerosol  Size Distribution
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Whitby, K. T., R. E. Charlson, W. E. Wilson, and R. K. Stevens.  The  Size  of
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     and Origins of Smog Aerosols.  Advances in Environ. Sci. and  Technol.
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White, W. H., J. A. Anderson, D. L. Blumenthal, R. B.  Husar, N. V.  Gillani, J.
     D. Husar, and W.  E. Wilson.  Formation and transport  of secondary air
     pollutants:  ozone and  aerosols in the St. Louis  urban  plume.   Science
     194:187-189, 1976.

Wilson, W. E.  Sulfates in the atmosphere:  a progress report on Project
     MISTT.  Atmos. Environ.  12:537-548, 1978.

Wilson, W. E.  Transformation during transport:  a state of  the art survey of
     the conversion of SO, to sulfate.  Presented  at WMO Symposium, Sofia,
     Bulgaria, Oct. 1-5, 1979.

Wilson, W. E., D. F. Miller,  A.  Levy, and R. K. Stone. The  effect of Fuel
     Composition on Atmospheric Aerosol Due to Auto  Exhaust. J. Air Pollut.
     Control Assoc. 23:949-956,  1973.

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     Sulfates in the atmosphere.   Presented at the 69th Annual  Meeting of Air
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Winchester,  J. W.,  R.  J. Ferek,  D.  R. Lawson, J. 0.  Pilotte, M. A.  Thiemens,
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     centrations  in particle size  fractions from continental United States
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Winkler,  P.  The growth  of  atmospheric  aerosol particles  as  a function of the
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Winkler, P., and C. Junge.   The growth of atmospheric aerosol particles as a
     function of the relative  humidity.  I.  Methods and measurements of
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Wolff, G. T., P. J. Lioy,  R. E. Meyers, and R. T. Cederwall.  An investigation
     of long-range transport of ozone across the Midwestern and Eastern United
     States.  Atmos. Environ.  11:797-802, 1977.
                                       6-124

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                                Chapter 7 - PM/SO
                                      Errata
Page   Par/Line
       Delete
      Insert
7-40   Column 8

7-41   Column 8

7-187  Ref.
       473
Ref.  118 (3 instances)

Ref.  118 (1 instance)

Entire reference
Replace with reference 272

Replace with reference 272

473.  Wilhour, R. G.,
G. E. Neely, D. E. Weber,
and L. C. Grothaus.
Response of Selected Small
Grains, Range Grasses and
Alfalfa to Sulfur Dioxide.
CERL-50, U.S. Environmental
Protection Agency, Corvallis
Environmental Research
Laboratory, Corvallis, OR,
February, 1979.

-------
           Chapter 8 PM/SOĄ
                          ^


(No errata or revisions at this  time.)

-------
                              Chapter 9 -  PM/SO
                                    Errata
Page   Par/Line
Delete
Insert
9-17
9-22
9-25
9-29
9-33
9-48
9-65
9-65
1/4
3/10
ft-nt
2/6
1/3
-/7
3/4
3/4
Rosen and Novakov, 1979
Macias et al., 1975
Waggoner and Weiss (1979)
-
7:1
-
7:1
] after: relative humidity
Rosen, et al. , 1980
Macias and Husar, 1976
Waggoner and Weiss (1980)
et al. after: Waggoner
7 ± 1
Husar, et al., 1979
after: United States.
7 ± 1
] after: (ug/m )
Note:  Completed reference list attached.

-------
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Cass, G. R.  On the relationship between sulfate air quality and visibility
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Chandrasekhar, S.  Radiative Transfer.  Dover Publishers, New York, 1960.

Changnon, S. A., Jr.  The La Porte weather anomaly-fact or fiction?  Bull.
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Charlson, R. J., D. S. Covert, T. V.  Larson, and A. P. Waggoner.  Chemical
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Charlson, R. J. , A. H. Vanderpo.1, D.  S. Covert, A. P. Waggoner, and N. C.
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Eggleton, A. E. J.  The chemical composition of atmospheric aerosols  on
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Eiden,  R.  Determination of  the complex  index of refraction of  spherical
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                                      9-70

-------
Ellis,  A.  T.,  and R.  F.  Pueschel.   Absence of air pollution trends at Mouana
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Ensor,  D., and A.  P.  Waggoner.   Angular truncation error in the integrating
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Gates,  D.  M.   Spectral  distribution of solar radiation at the Earth's surface.
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Grosjean, D.  et al.  Concentration, size, distribution and modes of formulation
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Hodge,  P. W., N. Laulainen, and R.  J.  Charlson.  Astronomy and  air  pollution.
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Horvath, H., and. K.  E.  Noll.  The relationship between atmospheric  light
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                                     9-71

-------
Husar, R. B., D. E. Patterson, J. M. Holloway, W. E. Wilson, and T. G. Ellestad.
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Landsberg, H.  E.  Man-made climatic changes.  Science 170:1265-1274, 1970.

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Leaderer, B. P. et al.  Summary of the New York Summer Aerosol Study (NYSAS).
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Marians and Trijonis 1979

McCree, K. J.,  and M.  E. Keener.   Effect of atmospheric turbidity  on the
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Patterson,  E. M.,  and  D. A. Gillette.  Measurements  of visibility  vs. mass-
     concentration for airborne  soil particles.  Atmos.  Environ. 11:193-196,  1977.


                                      9-72

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Patterson, R.  K.,  and J.  Wagman.   Mass and composition of an urban aerosol as a
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Peterson, J.  T.,  and E.  C.  Flowers.   Interactions between air pollution and
     solar radiation.  Solar Energy 19:23-32, 1977.

Pueschel, R., and D. L.  Wo11man.   On the nature of atmospheric background
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Pinnick, R. G., and D. E. Carroll, D. J. Hofmann.  Polarized light scattered
     from monodisperse randomly oriented nonspherical aerosol particles:
     measurements.  Appl. Opt. 15:384, 1976.

Rabinoff, R., and B. Herman.  Effect of aerosol size distribution on the
     accuracy of the integrating nephelometer.  J. Appl. Meteorol. 12:184-186,
     1973.

Robinson, G.  D.  Absorption of solar radiation by atmospheric aerosol, as revealed
     by measurements at the ground.   Arch. Meteorol. Geophys. Bioclimatol. Ser.
     B 12:19, 1962.

Robinson, G.  D.  Inadvertent Weather Modification Workshop.  Final Report to  the
     NAS; The Center for the Environment and Man (CEM) Report 4215-604, 1977.

Rodhe, H., C.  Persson, and 0. Akesson.  An  investigation into regional transport
     of soot and sulfate aerosols.  Atmos.  Environ. 6:675:693, 1972.

Rosen, H., A.  D.  A. Hansen, R. L. Dod, and  T. Novakov.  Soot in  urban  atmospheres:
     determination by an optical absorption technique.  Science  208:741-743,
     1980.

Samuels,  H. J., S. A. Twiss, and E. Wong.   Visibility,  Light Scattering,  Mass
     Concentration of Particulate Matter.   Report  of the California Tri-City
     Aerosol Sampling Project of the State  of California Air Resources Board,
     1973.

Tombach,  I. H., and M. W. Chan.  Physical,  chemical, and radiological
     characterization of background particulate matter  in  northeastern
     Utah.  Presented at the Annual Meeting of the Air  Pollution Control
     Association, 1977.  Paper No. 77-48.6.

Trijonis, J.,  and R. Shapland.  Existing Visibility  Levels  in the U.S.:   Isopleth
     Maps of Visibility  in  Suburban/Nonurban Areas During  1974-1976.   Final
     report to EPA under Grant No. 802815,  1978.

Trijonis, J.,  arid K. Yuan.  Visibility  in the Southwest:   an Exploration  of
     the  Historical  Data Base.  EPA-600/3/78/039,  U.S.  Environmental  Protection
     Agency,  Research Triangle Park, NC, 1978a.

Trijonis, J.,  and K. Yuan.  Visibility  in the Northeast:   Long  Term Visibility
     Trends and Visibility/Pollutant Relationships.   EPA-600/3-78-075, U.S.
     Environmental  Protection Agency, Research Triangle Park,  NC, 1978b.

                                     9-73

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U.S. Bureau of Mines.  Minerals Yearbook, Annual Publication, 1933-74.  U.S.
     Department of the Interior, Washington, D.C.

U.S. Environmental Protection Agency.  EPA Report to Congress:  Protecting
     Visibility.  EPA-450/5-79-008, U. S. Environmental Protection Agency,
     Research Triangle Park, NC, 1979.

Waggoner, A. P., A. J. Vanderpol, R. J. Charlson, S. Larsen,  L. Granat, and
     C. Tragardh.  Sulphate-light scattering ratio as an index of the  role of
     sulphur in tropospheric optics.  Nature 261:120-122, 1976.

Waggoner, A. P., and R. J. Charlson.  Measurement of aerosol  optical parameters.
     In:  Fine Particles, B. Y. H.  Liu, ed., Academic Press,  New York, 1976.
Waggoner, A. P., and R. E. Weiss.   Comparisons of fine particle mass concen-
     tration and light scattering extinction in ambient aerosol.  Atmos. Environ.
     14:623-626, 1980.

Waggoner, A. P. et al.  Optical absorption by atmospheric aerosols.  Appl.
     Opt. 12:896, 1973.

Waggoner 1973

Weiss, R. E.  Ph. D. Dissertation,  1978.

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     of light-absorbing aerosols.   In:  Proceedings of the Conference  on
     Carbonaceous Particles in the  Atmosphere, 1978.  p. 257.

Wesely, M.  L., and R. C.  Lipschutz.  An experimental study of the effects of
     aerosols on diffuse  and direct solar radiation received  during the summer
     near Chicago.  Atmos. Environ. 10:981-987, 1976.

White, W. H. , and P. T. Roberts.  On the nature and origins of visibility reducing
     aerosols in the Los  Angeles Air Basin.  Atmos. Environ.  11:803:812, 1977.

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     Constituents 1975.   Environmental Data Service National  Climatic  Center,
     Asheville, NC, 1977.
                                      9-74

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                              Chapter  10  -  PM/SO
                                    Errata      '
Page   Par/Line
       Delete
      Insert
10-9   2/7

10-47  3/5-6


10-93  Ref 6

10-94  Ref 6

10-94  Ref 6
10-94  Ref 9
10-95  Ref 1
10-97  Ref 9
10-97  Ref 16
Haagen Reed and Ottaz

sulfate particles	
...  .by acid hydrolysis

1960 after:  1969.

Evgang
Haagenrud—etc
Rosenfeld (1973)
Haagenrud and Ottar
Ergang

After M. B. Rockel.:  Corrosion
resistance of stainless steels in
the atmosphere - evaluation of the
results of weathering tests of up to
10 years duration.
                                   After Fleetwood, M.  J.:
                                   coatings
                         Zinc
Haagenrud, S., and B. Ottar.
In:  Proc. of the Seventh
Scandanavian Corrosion Congress,
Trondheim, Norway, 1975, as
cited in Kucera, V. Effects
of sulfur dioxide and acid
precipitation on metals and
anti-rust painted steel.
Ambio 5:243-248, 1976.

Rosenfeld 1973, as cited in
Nriagu, J. 0. ed., Sulfur
in the Environment.  Part II:
Ecological Impacts.  John
Wiley and Sons, Inc., New
York, 1978.  pp. 17-18.

After H. Ternes.:  Rate of
corrosion of plain carbon
and low-alloy structural
steels.

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                                                                               7/9/80
                              Chapter 11 - PM/SOV
                                    Errata
Page   Par/Line
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      Insert
11-9   4/3
11-9   4/4
11-11  1/3
11-34  Fig.
       Legend
11-35  -/I
11-46  4/4
11-47  1/1
11-51  2/8
11-60  3/3
11-60  3/3
11-61  4/7
11-62  2/11
11-62  2/12
ll-82a,
b.c.d,
Hew
11-105
et al.  (after Adams)-
Hansen, et al., 1974-
George and Breslin, 1976
1969
1970
1951
Proctor et al.
Proctor and Wagner, 1967;

Camner et al
b, after:  Raabe et al. 1976
and Davenport, after:  Adams
Hasen and Ampaya, 1974 after:
Nagashi, 1972
(expressed as fraction of
particles entering trachia)
after:  tracheobronchial (TB)
deposition
George and Breslin, 1967
1970
1971
1957
Proctor and Wagner

et al., 1971. after:  Dadaian
Camner and Philipson
and Davia, after:  Thomson
Attached 2% pages of text
and one figure on Respirable
Aerosol Sampling at end of
chapter.
New page, 11-105 (attached),
with 7 additional references.
Note:   List of additional  recommended references attached.

-------
                 Missing reference page 11-105 from first printing
                              Chapter 11 - PM/SOv
    Wilson, T. A., and K. Lin.  Convection and diffusion in the airways and the
         design of the bronchial tree.  In:  Airway Dynamics Physiology and
         Pharmacology.  A. Bouhuys, editor.  Springfield, 111.  Thomas 1970.
         pp. 5-19.

    Wolff, R. K., M. Dolovich, C. M. Rossman, and M. T. Newhouse.  Sulfur dioxide
         and tracheobronchial clearance in man.  Arch. Environ. Health 30:521-527,
         1975.                                                         ~~

    Yeh, H. C.  Use of a heat transfer analogy for a mathematical model of
         respiratory tract deposition.  Bull. Math. Biol. 36:105, 1974.

    Yeh, H. C., A. J. Hulbert, R. F. Phalen, D. J. Velasquez, and T. D. Harris.  A
         steroradiographic technique and its application to the evaluation of  lung
         casts.  Invest. Radiol. 10:351, 1975.

    Yeh, H. C., R. F. Phalen, and 0. G. Raabe.  Factors influencing the deposition of
         inhaled particles.  Environ. Health Persp. 15:147, 1976.

    Yu, C. P.  An equation of gas transport in the lung.  Resp. Physiol. 23:257,
         1975.

    Yu, C. P.  Precipitation of unipolarly charged particles in cylindrical and
         spherical vessels.  J. Aerosol Sci. 8:237, 1977.
Page   Par/Line

11-86  After
       8th Ref.
11-93  After
       llth Ref.
11-96  After
       5th Ref.
      Chapter 11 - PM/S02
            Errata
  REFERENCE LIST CORRECTIONS

Delete
      Insert

Clements, J. A., J. Nellenbogen,
and H.  J. Trahan.  Pulmonary
surfactant and evolution of
the lungs.  Science 169:
603-604, 1970.

Kawecki, J. M. Emmission of
Sulfur-Bearing Compounds
from Motor Vehicle and Air-
craft Engines, A Report to
Congress.  EPA-600/9-78-028,
U. S. Env. Prot. Agency.
Aug. 1978.

Menzel, D. B.  The role of
free radicals in the toxicity
of air pollutants (nitrogen
oxides and ozone).  In:
Free Radicals in Biology,
Vol. II, Academic Press,
New York, 1976.  pp. 181-202.

-------
      Additional References Recommended for Consideration in Chapter 11

Bar-Ziv, J.,  and G.  M.  Goldberg.   Simple Siliceous pneumoconiosis in Negev
     Bedouins.   Arch.  Environ.  Health 29:121-126, 1974.

Brambilla, C.,  J. Abraham, E.  Brambilla, K. Benirschke, and C. Bloor.  Comparative
     pathology of silicate pneumoconiosis.   Am. J. Pathol. 96:149-170, 1979.

Camner, P. and K. Philipson.   Human alveolar deposition of 4 urn Teflon particles.
     Arch. Environ.  Health 33(4):181-185, 1978.

Chan, L. T.  and M. Lippman.  Experimental measurements and empirical modeling
     of the regional deposition of inhaled particles in humans.  Am. Ind. Hyg.
     Assoc.  J., 1980.   (in press)

Dejours, P.   Oxygen Demand and Gas Exchange in Evolution of Respiratory Processes:
     A Comparative Approach.   Stephen C. Wood and Claude Lenfant, eds., Volume
     13 of Lung Biology in Health and Disease (executive editor:  Claude
     Lenfant).   Marcelu Dekker, Inc. New York, 1980.  pp. 1-49.

Heyder, J., J.  Gebhart, and W.  Stahlhofen.   Inhalation of Aerosols:  Particle
     Deposition and Retention.   In: Generation of Aerosols and Facilities for
     Exposure Experiments.  K.  Willeke, ed., Ann Arbor Science Publishers,
     Inc., 1980.

Hyde, D. M.,  N. E. Robinson, J. F. Gillespie, and W. S. Tyler.  Morphomety  of
     the distal air spaces in lungs of aging dogs.  J. Appl.  Physio!.  43(1):86-91,
     1977.

Lippman, M.,  D. B. Yeates, and R. E. Albert.  Deposition, Retention  and Clearance
     of Inhaled Particles.  Br. J. Ind. Med., 1980.  (in press)

Richards, D.  W.   Pulmonary Changes Due to Aging.   In: Handbook of  Physiology
     Respiration  (Volume II).  W. 0. Fenn and H.  Rahn, eds.,  American  Physiological
     Society, Washington, DC, 1965. pp.  1525-1529.

Sherwin,  R.  P., M. L.  Barman, and J. L. Abraham.  Silicate Pneumoconiosis of
     Farm Workers.  Laboratory Investigations 40(5):576-582,  1979.

Stauffer, D.   Scaling Theory for Aerosol Deposition in the Lungs of Different
     Mammals.  J. Aerosol Sci.  6:223-225, 1975.

Weibel, E. R.  Morphometrics of the lung.  In:   Handbook  of  Physiology Respiration
     (Volume I).  W. 0. Fenn and H. Rahn, eds. American  Physiological  Society,
     Washington,  DC, 1964.  pp. 285-307.

Weibel, E. R.  Oxygen Demand and Size of Respiratory Structures  in  Mammals.
     In:  Evolution of Respiratory Processes:  A Comparative  Approach.   Steven
     C. Wood and  Claude Lenfant, eds. , Volume  13 of Lung  Biology In Health  and
     Disease (executive editor Claude Lenfant).   Marcel  Dekker,  Inc.,  1980.

-------
11.     RESPIRABLE AEROSOL SAMPLING
    A fundamental principle in inhalation toxicology is  that  it  is the deposi-
tion of inhaled participate materials in sensitive regions  of the respiratory
tract or subsequent transformations and translocations to sensitive organs or
cells that leads to potentially deleterious biological responses.  Particles
(or gases) that deposit neither in sensitive regions of  the airways nor  in
regions conducive to translocation to sensitive organs are  cleared with  rela-
tively low probability of causing injury or disease (Morrow,  1964).   For
example, large insoluble particles that deposit almost exclusively in the nose
are prevented from reaching the lung during nose breathing  and are less  likely
to lead to injury than smaller particles having appreciable lung deposition.
    This principle was early observed in coal  mining in  Europe;  it was found
that the air concentration of dust in mines didn't necessarily correlate to
the incidence of respiratory disease.  However, a meaningful  comparison  was
possible when samples were aerodynamically fractionated  to  provide a  separate
measure of the respirable dust levels.  This led to the  use of "respirable"
dust samples in the coal mining industry (Walton, 1954). Further, the
repeated practice of collecting respirable dust samples  is  necessary, since
there is variability in the aerodynamic size distribution of  dust depending on
age and source.
    On this basis the principle of "respirable" dust sampling was developed
(Lippmann, 1970b).  In this context the word "respirable" means  broadly  "fit
to be breathed."  The objective is to collect samples that  have  been  purposely
biased in favor of the smaller, more respirable sizes.   Only  the smaller size
fraction is measured to yield the "respirable" aerosol concentration. No
specific "cut-size" was defined, since it is clear that  there is no size for
                                  ll-82a

-------
which all particles smaller are respirable  and all  larger are  not.   Instead,
weighting functions were defined that  simulated the size classification
normally afforded by the human naso-pharyngeal deposition during  nose
breathing.  Another factor involved  in describing a respirable fraction was
the availability of a simple instrument that  would  provide  a practical means
for collection of these size-classified samples.
    Two weighting functions have been  generally used  as criteria  for respir-
                        (H9
able dust sampling (Fig.y|2&).   The first originated in 1952 when  the British
Medical Research Council adopted the horizontal elutriator  (Walton,  1954)  as
the respirable dust sampler.  Particles that  pass the elutriator  are collected
on a filter or by some other means.  The second criteria originated  with
researchers working for the U. S. Atomic Energy Commission  who needed to
establish a basis for size classification of  radioactive insoluble aerosols;
these recommendations came from a meeting held at Los Alamos Scientific
Laboratory (LASL). New Mexico, and  are commonly referred to as the LASL
              (\-
-------
           §
           c
           0)
          ft.
                                   BMRC curve


                                   LASL curve
           S   20-
               0     24     6     8    10


                     Diam unit density sphere — nJ»\
                       FIGURE


Respirable  aerosol  sampling criteria for penetration of

repirable aerosols   through a size-classifier to provide for

collection  of particles that have the greatest potential for

pulmonary deposition if inhaled (from Raabe,1979).
                           ll-82c

-------
efficiently deposited in the pulmonary  region  during mouth  breathing  (Fig.
                               fl-3
than during nose breathing (Fig.^)  are weighted more than  would be justified
by the ICRP Task Group nose breathing models.
    It is important to note that  the "respirable"  dust  sample  is thus not
intended to be a measure of the lung deposition but only  a  measure of aerosol
concentration for particles that  are the primary candidates for lung  deposi-
tion.  Clearly, the respirable dust  sample is  only biologically relevant for
aerosols whose upper respiratory  deposition is not expected to be of major
health impact.  Soluble aerosols  of  toxic substances can  enter the blood
directly from the nasal mucosa or the gastrointestinal  tract during clearance
from the nose, and the deposition of particles as  large as  100 ym or  even
larger in the nose may be the .primary hazard for such aerosols.
                                  ll-82d

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                                 Chapter 12 -  PM/SO
                                       Errata
Page   Par/Line
                         Delete
      Insert
12-7
12-8   -/I
12-16  4/2-3
                   Kikigawa and Sizuka
                   Sentence:   Mice.... lifetimes.
12-17  Col.  1 & 2  1310     500
                   300 days
12-17  Col.  3
       line 6
12-20  Col.l
12-21

12-51

12-52

12-72  2/10
12-80  4/5
12-91  2/21
12-93  3/6
       3/7
12-98  1/14
12-100 3/8-9
12-102 Col.  1
12-105 Col.  4
       -/15
                   1310 mg/m  (500 ppm) S02
                   First-column, 8th line:
                   Ong/nr
                   Original page
                   Original page
                   100
                   head only
                   alterations, thus
                   regimes
                   ozone exposed
                   (see Table 12-15)
                   beating
Revised Table 12-1
Kikigawa and lizuka
Mice were exposed over their
lifetimes in a 180 liter
chamber into which 500 ppm
S02 was injected at a rate
of 20 ml/mingfor 5 minutes,
5 days/week.
(See Text)
lifetime
(See Text)
      o
0 mg/m
New page, with revisions for
the 7th compound:  fe®'
New page, with revisions for
first entry:  Open hearth dust.
0.1 mg/m
head-only
alterations.  Thus
comma after:  diameter)
comma after:  time
regimens
ozone-exposed
(see Table  12-14)
beat

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                                Chapter 12 - PM/SO
                                   Errata (cent.)
Page   Par/Line
      Delete
12-105 Col 5

12-115 2/1, 2
12-117 2/6

12-124 2/2

12-124 2/3

12-124 2/4



12-125 2/12,13
12-129 2/8

12-130 1/10

12-151 Ref. 233
Gardner et al.
                                 154
Peacock and Spence. .  .  .
.... for two years.
Ref. 392

absorption and

is
In a different study
. . . .(500 ppm) S02
initiating
L. Whittenberger
      Insert
Gardner et al.
                                                 145
                                                           ,327
Peacock and Spence (1967)'
exposed LX strain mice, over their
lifetimes, in a 180 liter chamber
into which SO. at a concentration
of 500 ppm (1310 pg/m ) was
injected at a rate of 20 ml/min for 5
minutes, 5 days/week.

Ref. 292
is retained somewhere In the
respiratory system,  after:
amount

In a different study, mice were
exposed over their lifetimes in
a 180 liter chamber into which
S0« at a concentration of 500
     f ^ *5 ^ /\  __ /—-"^ \ • .» » —	 —	—*-	-
     (1310 pg/m ) was injected at
a rate of 20 ml/min for 5 minutes,
5 days/week.

irritating

comma after:  volume

J.  L. Whittenberger
Note:   List of additional  recommended references  attached.

-------
                                                  TABLE 12-1.   POTENTIAL NUTAGENIC  EFFECTS OF S02/BISULFITE
Concentration SOj



4

1310 mg/n3
(500 ppm)
Bisulfite
0.9 H HSOl
pH 5.0 J
3 N HSO~
pH 5-6 •*
1 N HSO"
pH 5.2 3
5 x 10"3 N HSOl
pH 3.6 J
0.04 or 0.08 M

Organls*
Phage T4-R11 System
Phage T4-R11
Systeii
E. coll K12 &
K15
S. cerewlslae
D. •elanogaster
Hela cells
(Hunan)
End Point
GC+AT or
deaml nation of
cysoclne
deanl nation of
cytoclne
GC-»AT or
deani nation of cytoclne
Point Nutation
Point Mutation
Cytotoxlclty
Response CoMents
•»•
t Poor dose
response
+
+
Nay not be
bloavallable
•f
Reference
SS*""
Hayatsu and.Miura201
Ilda et al.zoz
Nukal et al.203
Ooranoa.and
Oupuy1104
Valencia et al.205
Thompson and Pace
13.1-105 ng/nj
(5 - 40 .ppm x 3 tin)
House flbroblasts &
Peritoneal ucrophages
Nulsen et al.
                                                                                                                                              208

-------
                                                   TABLE 12-8 (continued).
rv>

Concentration
Compound mg/m3
Na2S04
ZnS04
ZnS04-
(NH4)2S04







CuS04


NaV04
FeS04
Fe203 (2hr)

MnCl2
Mn02
MnS04
0.90
0.91
0.25
0.50
1.10
1.80
1.50
2.48
1.40
1.10
3.60
0.43
2.05
2.41
0.70
1.00
11.70
21.00
1.00
9.70
4.00
Particle
size, urn, HMD**
0.11
1.4
0.29
0.29
0.29
0.29
0.51
0.51
0.74
1.4
1.4
0.11
0.13
0.33


0.076 (GMD)
0.076 (GMD)



Resistance
cm H20/ml/sec
% difference
from control
+2
+41*
+22*
+40*
+81*
+129*
+43*
+68*
+29*
+6
+32*
+9
+25*
+14*
+7a
+2a
_ga
Oa
+4a
-6a
-la
Compliance
ml /cm H20
% difference
from control Reference
-7 130
123,170
123,173
123
123,170
64,123
123,173
123
64,123,173
123,173
123
-11* 130
-15* 130
-11* 130
96
96
96,124
96,124
96
96
170

-------
      Compound
                                                  TABLE 12-8 (continued)
                Concentration
                    mg/m3
  Particle
size, pm, HMD
 Resistance
cm H20/ml/sec
% difference
from control
Compliance
ml/cm H20
% difference
from control
Reference
Open hearth
dust
Activated
carbon
Spectographic
carbon
0.16
7.00
8.70

2.00
8.00
0.037 (GMD) +lla
0.037 (GMD) +6a
-3a

*7a
+17a
0 96,124
-16 96,124
96

96
96

ro
i
in
ro
*p < 0.05


aStatisties not done
      **Diameters  are  provided as  mass  median diameter (HMD)  unless  specified as  geometric
       median  diameter by count (GMD).

-------
 Additional References Recommended for Consideration in Chapter 12

Costo, D. L. and M. 0. Amdur.  Effect of oil mists on the irritancy of sulfur
     dioxides.  II.  Motor Oil.  Am. Ind. Hyg. Assoc. J. 40:809-815, 1979.

Costa, D. L., and M. 0. Amdur.  Effect of oil mists on the irritancy of sulfur
     dioxide.  I.  Mineral Oils and Light Lubricating Oil.  Am. Indust. Hyg.
     Assoc. J. 40(8):680-685, 1979.

Costa, D. L. , and M. 0. Amdur.   Respiratory responses of guinea pigs to oil
     mists.  Am.  Indust. Hyg. Assoc. J. 40(8):673-679, 1979.

Schneider and Calkins.  Sulfur dioxide induced lymphocyte defects in peripheral
     blood cultures.  Environ. Res. 3:473-482, 1970.

-------
                              Chapter  13  -  PM/SO
                                    Errata
Page
13-5
13-5
13-5
13-9
13-11
Par/Line
Col. 4
8th Ref
Col. 4
6th Ref
Col. 4
llth Ref
2/1
-716
Delete
Odor Threshold, 1968
Holmes, 1954
Bushtueva et al., 1960
Bushtueva et al . (1960)

Insert
Arthur D. Little, Inc. 1968
Holmes, 1915 (see Greenwald,
1954)
Bushtueva, 1962
Bushtueva (1962)
In "Effects" column entry
13-12  -/10


13-12  -/ll
13-13  Col.  7
       2nd Ref

13-13  -/2
13-16  2/11

13-22  3/1

13-23  2/1

13-26  3/4
13-26  4/2
                                                      for Frank et al.,  1962,
                                                      after ...  nasal  breathing:;
                                                      at 1 ppm,  one subject ex-
                                                      perienced 7% increase in
                                                      flow resistance,  another a
                                                      23% decrease
In "Reference" column:
Hazucha and Bates, 1975
In "Effects" column:   Significant  Significant decrease in
decrease in FVC, FEV, n, MMFR,     MEFR; FVC, FEV, n, MMFR
UtTTl                .L • U
MEFR

Wolff et al., 1975b
Lawther and Bond 1955

1975b

1975b
also decreased "

Wolff et al., 1977
In "Effects" column entry
for Jaeger et al., after ..
30 minutes:; 3 subjects in-
curred delayed effects and
required medication.

Lawther 1955

1977

1977

; EPA before estimate
; EPA before estimate

-------
Page   Par/Line
                 Chapter 13 - PM/SOx Errata (cont.)

                   Delete
                                         Insert
13-27
13-28
13-28
Col. 6
7th Ref
8th Ref

2/3
2/12
13-31  2/7
13-38
13-38
2/4
2/5
Koenig, 1979

Koenig, 1979
13-40  1/16
estimated
estimated

1968
Koenig et al.,  1979

Koenig et al.,  1979

;  EPA before  estimate
EPA before estimate

1973 after:   Hazucha

EPA estimate  of
EPA estimate  of

1978
 Note:  Completed reference list attached.

 Note:  List of additional recommended references attached.

-------
 Additional References Recommended for Consideration in Chapter 13

Anderson, L., G.  R.  Lundgvist, D.  F.  Proctor, and K. L. Swift.  Human response
     to controlled levels of inert dust.  Am. Rev. Resp. Dis.  119:619-627,
     1979.

Camner, P.  and K. Philipson.  Human alveolar deposition of 4 urn Teflon particles.
     Arch.  Environ.  Health 33(4):181-185, 1978.

Chaney, S. , W. Blomquist, K. Muller,  and G. Goldstein.  Biochemical Changes  in
     humans Upon Exposure to Sulfuric Acid Aerosol and Exercise.
     EPA-600/1-79-032, U.S.  Environmental Protection Agency, 1979.

Chaney, S., W. Blomquist, K. Muller,  and P. Dewitt.   Biochemical Effects  of
     Inhalation of Sulfuric Acid Mist by Human Subjects While at  Rest.
     EPA-600/1-79-042, U.S.  Environmental Protection Agency, 1979.

Coates, J.  E.  Lung Function:  Assessment and Application in Medicine.   Fourth
     edition.  Blackwell Scientific Publications, London, 1979. pp. 329-387.

Utell, J. J., A.  T.  Aquilina, W. J. Hall, D. M. Speers, R. G. Douglas, F.  R.
     Gibb,  P. E.  Morrow, and R. W. Hyde.  Development of Airway Reactivity to
     Nitrates in Subjects with Influenza.  Am. Rev. Resp. Dis. 121:233-241,
     1980.

-------
13.7  REFERENCES

Abe. M.  Effects of mixed N02, SOp on human pulmonary functions.  Effects of
     air pollution on the human body.  Bull. Tokyo Med. Dent. Univ. 14:415,
     1967.

Amdur, M.  Animal studies on  sulfur acids and particulates.  Proceedings of
     Conference, Health Effects of Air Pollutants.  U.S. Government Printing
     Office, Washington, DC,  1973.  pp. 175-205.

Amdur, M. 0.  The long road from Donora.  1974 Cummings Memorial  Lecture.
     Am. Ind. Hyg. Assoc. J.  35:589-597, 1974.

Amdur, M. 0.  Toxicological appraisal of particulate matter, oxides of  sulfur
     and sulfuric acid.  J. Air Pollut. Control Assoc.  19:638-646, 1969.

Amdur, M. 0., W. W. Melvin, Jr., and P. Drinker.  Effects of inhalation of
     sulfur dioxide by man.   Lancet 2:758-759, 1953.

Amdur, M. 0., L. Silverman, and P. Drinker.  Inhalation of sulfuric acid mist
     by human subjects.  Arch. Ind. Hyg. Occup. Med. 6:305-313, 1952.

Andersen, I., P. L. Jensen, S. E. Reed, J. W. Craig, D. F. Proctor, and G. K.
     Adams.  Induced rhinovirus infection under controlled exposure to  sulfur
     dioxide.  Arch. Environ. Health 32:120-126, 1977.

Andersen, I., G. R. Lundqvist, P. L. Jensen, and D. F. Proctor.   Human  response
     to controlled levels of  sulfur dioxide.  Arch. Environ. Health 28:31-39,
     1974.

Arthur D. Little Incorporated.  Determination of Odor Thresholds  for  53
     Commercially Important Organic Compounds.  The Manufacturing Chemists'
     Association, Washington, DC, January 11, 1968.

Avol, E. L., M. P. Jones, R.  M. Bailey, N. N. Chang, M. T. Kleinman,  W. S.
     Linn, K. A. Bell, and J. D. Hackney.  Controlled exposures of human
     volunteers to sulfate aerosols.  Am. Rev. Respir. Dis. 120:319-326, 1979.

Bates, D. V., and M. Hazucha.  The short-term effects of ozone on the lung.
     Ijn:  Proceedings of the  Conference on Health Effects of Air  Pollutants.
     Serial No. 93-15, U.S. Government Printing Office, Washington, DC, 1973.
     pp. 507-540.

Bedi, J. F., L. J. Folinsbee, S. M. Horvath, and R. S. Ebenstein.  Human
     exposure to sulfur dioxide and ozone:  absence of a synergistic  effect.
     Arch. Environ. Health 34:233-239, 1979.

Bell, K. A., and J. D. Hackney.  Effects of sulfate aerosols upon human pulmonary
     function.  Coordinating  Research Council, Inc.  (APRAC Project CAPM - 27-75),
     1977.

                                     13-47

-------
Bell, K.  A., W.  S.  Linn, M.  Hazucha,  J.  D.  Hackney,  and D.  V.  Bates.
     Respiratory effects of exposure  to  ozone plus sulfur dioxide in Southern
     Californians and Eastern Canadians.   Am. Ind. Hyg.  Assoc.  J. 38:696-706,
     1977.                                                         ~~

Burton, G.  G.,  M. Corn, J.  B.  L.  Gee, D.  Vassallo, and A. Thomas.  Absence
     of "synergistic response" to inhaled low concentration gas-aerosol mixtures
     in healthy adult males.   Presented  at 9th Annual Air Pollution Medical
     Research Conference, Denver, Colorado, July 1968.

Burton, G.  G.,  M. Corn, B.  L.  Gee, C. Vasallo, and A. P.  Thomas.  Response of
     healthy men to inhaled low concentrations of gas-aerosol  mixtures.  Arch.
     Environ.  Health 18:681-692,  1969.

Bushtueva,  D.  A.  New studies of the  effect of sulfur dioxide and of sulfuric
     acid aerosol on reflex activity  of  man.   In:  Limits of Allowable Concen-
     trations of Atmospheric Pollutants.   Book 5, B.  S.  Levine, translator,
     U.S. Department of Commerce, Office of Technical Services, Washington, DC,
     March 1962.  pp. 86-92.

Bushtueva,  K.  A.  The determination of the limit of allowable concentration of
     sulfuric acid in atmospheric air.   In:  Limits of Allowable Concentrations
     of Atmospheric Pollutants.   Book 3,  B. S. Levine, translator, U.S. Department
     of Commerce, Office of Technical Services, Washington, DC, 1957.  pp. 20-36.

Bushtueva,  K.  A.  Threshold reflex effect of S02 and sulfuric acid aerosol
     simultaneously present in the air.   In:   Limits of Allowable Concentrations
     of Atmospheric Pollutants.   Book 4,  B. S. Levine, translator, U.S. Department
     of Commerce, Office of Technical Services, Washington, DC, January 1961.
     pp.  72-79.

Cralley,  L. V.   The Effect of irritant gases upon the rate of ciliary activity.
     J. Ind. Hyg. and Toxicol. 24:193-198, 1942.

Dubrovskaya, F.  I.   Hygienic evaluation  of pollution of atmospheric air of a
     large city with sulfur dioxide gas.   In:  Limits of Allowable Concentrations
     of Atmospheric Pollutants.   Book 3,  B. S. Levine, translator, U.S. Department
     of Commerce, Office of Technical Services, Washington, DC., 1957.  pp. 37-51.

Frank, N. R.  Studies on the effects  of acute exposure to sulfur dioxide  in
     human subjects.  Proc. R. Soc. Med.  57:1029-1033, 1964.

frank, N. R., M. 0. Amdur, and J. L.  Whittenberger.  A comparison of the  acute
     effects of S0? administered alone or in combination with Nad particles
     on the respiratory mechanics of healthy adults.  Int. J.  Air Water Pollut.
     8:125-133, 1964.

Frank, N. R., M. 0. Amdur, J. Worcester,  and J.  L. Whittenberger.
     Effects of acute controlled exposure to S0~  on  respiratory mechanics
     in healthy male adults.   J.  Appl.  Physiol.^17:252-258, 1962.

                                     13-48

-------
Frank, R., C. E. McJilton, and R. J. Charlson.  Sulfur oxides and particles;
     effects on pulmonary physiology in man and animals.  In:  Proceedings of
     Conference on Health Effects of Air Pollution.  National Research
     Council, Oct. 3-5, 1973.  Serial No. 93-15, U.S. Government Printing
     Office, Washington, DC.

Gb'kenmeijer, J. D. M. , K. DeVries, and N. G. M. Orie.  Response of the bronchial
     tree to chemical stimuli.  Rev. Inst. Hyg. Mines (Hasselt) 28:195-197,
     1973.

Greenwald, I.  Effects of inhalation of low concentrations of sulfur
     dioxide upon man and other mammals.  Arch. Ind. Hyg. Occup. Med.
     10:455-475, 1954.

Gunnison, A. F., and  E. D. Palmes.  S-Sulfonates in  human plasma following
     inhalation of sulfur dioxide.  Am. Ind. Hyg. Assoc. J.  35:288-291, 1974.

Hazucha, M., and 0. V. Bates.  Combined effect of ozone and  sulphur dioxide 0,1
     human pulmonary  function.  Nature (London) 257:50-51, 1975.

Holmes, J. A., E. C.  Franklin, and R. A. Gould.  Report of the Selby Smelter
     Commission.  Bulletin 98,  U.S. Department of the Interior, Bureau of Mines,
     Washington, DC,  1915.

Horvath, S. M. (personal communication).

Horvath, S. M., and L. J. Folinsbee.  Interactions of Two Air Pollutants,
     Sulfur Dioxide and Ozone, on Lung Functions.  Grant ARB-4-1266, California
     Air Resources Board, Sacramento, CA, March 1977.

Jaeger, M. J., D. Tribble, and H. J. Wittig.  Effect of 0.5  ppm sulfur
     dioxide on the respiratory function of normal and asthmatic
     subjects.  Lung  156:119-127, 1979.

Kisskalt, K.  Uber den Einfluss der inhalation schwelfiger Saure auf die
     Entevickelung der Lungentuberculose:  Ein Bietrag zum Studien der Gewer-
     bekrankheiten.   Z. Hyg.  48:269-279, 1904.

Kleinman, M. T., and  J. D. Hackney.  Effects of sulfate aerosols
     upon human pulmonary function.  APRAE Project CAPM-27-75, Coordinating
     Research Council, Inc.,  New York, NY, 1978.

Koenig, J. Q., W. E.  Pierson, and R. Frank.  Acute effects of inhaled S02 plus
     NaCl droplet aerosol on  pulmonary function in asthmatic adolescents.  Environ.
     Res. (in press), 1980.

Koenig, J. Q., W. E.  Pierson, and R. Frank.  Acute effects of
     inhaled  SOp and  exercise on pulmonary  function  in asthmatic
     adolescents..  J. Allergy Clin.  Immunol. 64:154, 1979.

Kreisman, H.,  C. A. Mitchell, H. R. Hosein, and A. Bouhuys.  Effect  of  low
     concentrations of sulfur dioxide on  respiratory function in man.   Lung
     154:25-34, 1976.
                                        13-49

-------
Lawther, P.  J.   Effects of inhalation of sulfur dioxide on respiration and
     pulse-rate in normal subjects.   Lancet 2:745-748, 1955.

Lawther, P.  J., A. J.  MacFarlane, R. E. Waller, and A. G. F. Brooks.  Pulmonary
     function and sulphur dioxide, some preliminary findings.  Environ. Res.
     10:355-367, 1975.

Lehmann, K.  B.   Experimentelle Studien uber den Einfluss technisch und hygienisch
     wichtiger Case und Da'mpfe auf den Organismus.  VI.  Schwefliger Saure.
     Arch.  Hyg. 18:180-191, 1893.

Lippman, M., R. E. Albert, D.  B. Yeats, K.  Wales, and G. Leikauf.  "Effect of
     sulfuric acid mist on mucociliary bronchial clearance in healthy non-smoking
     humans."  J.  Aerosol Sci.  In Press, 1979-1980.

Mcllroy, M.  B., R. Marshall, and R.  V. Christie.  Work of breathing in normal
     subjects.   Clin.  Sci. 13:127-136, 1954.

McJilton, C. E., R. Frank, and R. J. Charlson.  Influence of relative
     humidity on functional effects of an inhaled SO^-aerosol mixture.
     Am. Rev. Respir.  Dis. 113:163-169, 1976.       *

Melville, G. N.  Changes in specific airway conductance in healthy volunteers
     following nasal and oral  inhalation of S09.  West Indian Med. J.  19:231-235,
     1970.                                     *

Nadel, J.,  H. Salem, B. Tamplin, and Y. Tokiwa.  Mechanism of bronchoconstriction
     during inhalation of sulfur dioxide.  J. Appl. Physiol. 20:164-167, 1965.

Nadel, J. A., H. Salem, B. Tamplin, and Y.  Tokiwa.  Mechanism of bronchoconstriction.
     Arch.  Environ. Meth. 10:175-178, 1965.

Nakamura, K.  Response of pulmonary airway resistance by interaction of aerosols
     and gases in different physical and chemical nature.  Nippon Eiseigaku Zasshi
     19:38-49, 1964.

Newhouse, M. T., M. Dolovich,  G. Obminski, and  R. K. Wolff.  Effect of TLV
     levels of S0? and HUSO, on bronchial clearance in exercising man.  Arch.
     Environ. Health 33:24-32, 1978.

Ogata, M.  Uber die Giftigkeit der  schweffigen  Saure.  Arch. Hyg. 2:223-245,
     1884.

Reichel, G.   Die Wirkung von Schwefeldiovyd auf den Atemivegsvilderstand
     des Menschen.  Verh. Dtsch. Arbeitsmed.  12:135-141, 1972.

Ryazanov, V. A.  Sensory Physiology as Basis  for  Air Quality Standards.   Arch.
     Environ. Health 5:479-494, 1962.

Sackner, M.  A., D. Ford, R. Fernandez, J. Cipley, D.  Perez, M. Kwocka, M.  Reinhart,
     E. D.  Michaelson, R. Schreck,  and Adam Wanner.   Effects of  sulfuric  acid
     aerosol on cardiopulmonary function of dogs, sheep, and humans.   Am.  Rev.
     Respir. Dis.  118:497-510, 1978.
                                       13-50

-------
Schlcsinger, R. B., M.  Lippmann, and  R. E. Albert.   Effects of Short-term
     Exposures to  Sulfuric Acid and Ammonium Sulfate.  J. Am. Ind. Hyg. Assoc.
     39:275-286, 1978.

Schlesinger, R. B., M.  Halpern, R. E. Albert, and M.  Lippmann.  Effect of
     Chronic Inhalation of Sulfuric Acid Mist Upon Mucociliary Clearance from
     the Lungs of  Donkeys.   J. Environ. Pathol. & Toxicol. 2:1351-1367, 1979.

Shalamberidze, 0.  P.  Reflex effects  of mixtures of  sulfur and nitrogen dioxides.
     Hyg. Sanit. 32:10-15, 1967.

Sim, Van M., and R. E.  Pattle.  Effect of possible smog  irritants on human
     subjects.  J. Am.  Med.  Assoc. 165:1908-1913, 1957.

Snell, R. E., and  P. C. Luchsinger.   Effects of sulfur dioxide on expiratory
     flow rates and total respiratory resistance in  normal human subjects.
     Arch.  Environ. Health 18:693-698, 1969.

Speizer, F. E. , and N.  R. Frank.  A comparison of changes in pulmonary flow
     resistance in health volunteers  acutely exposed to  S09 by mouth and by
     nose.  Br. J. Ind. Med.  23:75-79, 1966a.               •

Speizer, F., and Frank, N. R.  The Uptake and Release of SO, by the Human
     Nose.  Arch.  Environ. Health 12:725-728, 1966b.       *

Tomono, Y.  Effects of  S09 on human pulmonary functions.  Sangyo Igaku
     3:77-85, 1961.      *

Toyama, T.  A medical study  of aerosols.  I.  Sangyo Igaku 4:86-92, 1962.

Toyama, T. , and K. Nakamura.   Synergistic response to hydrogen peroxide aerosols
     and sulfur dioxide to pulmonary  airway resistance.  Ind. Health 2:34-45,
     1964.

Ulmer, W. T.   Inhalative noxen: schwefeldioxyd.  Pneumonologie 150:83-96,
     1974.

von Nieding, G., H. M.  Wagner, H. Krekeler, H. Lb'llgen,  W.  Fries, and
     A. Beuthan.   Controlled studies  of human exposure to single and
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Weir, F. W., and P. A.  Bromberg.  Further investigation  of  the effects of
     sulfur dioxide on  human subjects.  Annual Report Project No. CAWC S-15,
     American  Petroleum Institute, Washington, DC, 1972.

Weir, F. W., and "P. A.  Bromberg.  Effects of  sulfur  dioxide on human
     subjects  exhibiting peripheral airway  impairment.   Project No. CAWC S-15,
     American  Petroleum Institute, September  1973.    pp. 1-18.

Wolff, R.  K.,  M. Dolovich,  C.  M.  Rossman, and M. T.  Newhouse.  Sulphur dioxide
     and  tracheobronchial  clearance  in man.   Arch.  Environ. Health  30:521-527,
     1975a.

                                       13-51

-------
Wolff, R. K., M.  Dolovich, G. Obminski, and M. T. Newhouse.  Effect of
     sulphur dioxide on tracheobronchial clearance at rest and during exercise.
     ^n:   Inhaled Part. Proc. Int. Symp. 4th, Edinburgh, Scotland, September
     22-26, 1975.  Pergamon, Oxford, UK, 1977.  pp. 321-332.

Yamada, J.  Untersuchunger iiber die quantitative Absorption der Da'mpfe einiger
     Sauren durch Tier und Mensch.  Dissertation, Wurzburg, 1905.  (See  Lehmann,
     K. B., Arch. Hyg. 67:57-98, 1908.)
                                      13-52

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               Chapter 14.  Epidemiology Studies Corrigenda
     Before listing specific minor errata (insertions/deletions) for text contained
in Chapter 14 of the April 1980, External Review Draft, several general comments
should be noted regarding planned reorganization and certain other major changes
to be made in the chapter.  The chapter reorganization and other changes are
based in part on comments received both from within and outside EPA
and further technical information obtained since finalization and release of the
April, 1980, external review version of the chapter.
     In regard to reorganization of the chapter, the present introduction (Section
14.1) discussing general  epidemiology methodology considerations and the discussion
of air quality measurement considerations (Section 14.2) are to be retained,
with certain specific revisions noted later.  Similarly, much of the later discussion
of caveats and limits contained in Section 14.6 is to be retained, again with certain
revisions as noted later.  The materials between the above sections (dealing with
evaluation of specific studies), however, is to be reorganized using the following
format:
     14.3 - Acute Exposure Effects
          14.3.1 - Mortality
          14.3.2 - Morbidity
                   Adults
                   Children
     14.4 - Chronic Exposure Effects
          14.4.1 - Mortality
          14.4.2 - Morbidity
                   Adults
                   Children

     Resequencing of the discussion of specific studies in the above manner both:
(1) better matches the presentation format followed for summary text and tables later
in Chapter 14 and in Volume I; and (2) better organizes discussion
of technical data related to development of health criteria for short-term (24-hour)
or long term (annual average) ambient air quality standards, respectively.  Text on

-------
the bottom of pg. 14-14 is, therefore, to be revised to reflect the reorganization

of subsequent materials in Section 14.3 and 14.4, and to indicate that a new

Section 14.5 will contain integrative summary and interpretation discussion

materials of the type dealt with under the present Section 14.6.

     Also, at the end of Section 14.1, following the above revisons of text at

the bottom of Pg. 14-14, new text to be inserted is to note that certain criteria

are to be followed, generally, in the selection of specific studies to be

discussed in detail under new Section 14.3 and 14.4.  The criteria to be employed

in narrowing down the detailed discussion to potentially key studies are as

follows:

     1.  The studies have been peer-reviewed and published or are
"in press" to be published, such that final versions of the published reports
are (or can be made) publically available.  Also, the results or analyses contained
in the published reports represent completed analyses of data, rather than "preliminary"
analyses subject to change before publication in "final" form.

     2.  The published information is sufficient to allow for reasonably clear
evaluation of the methodology employed in collection and analysis of
data leading to the results reported (or such information is satisfactorily
alternatively obtained or clarified).

     3.  Evidence exists for major confounding factors having been appropriately
controlled for or taken into account in the published analyses, e.g. especially
temperature in studies of acute effects and smoking, race, and socioeconomic
status in chronic exposure studies.

     4.  The published results, together with any alternatively obtained
information, appear to provide a reasonably clear potential basis by which to
define quantitative dose-effect or dose-response relationships for health
effects associated with sulfur oxides and particulate matter. Emphasis
is to be placed on studies yielding information on effects associated
with exposures below 1000 yg/m  (24 hour average) that are most germane for
present criteria development purposes.

     In addition to detailed discussion of studies meeting all of the above

criteria, certain other studies failing to meet one or more of the criteria may

also be considered or reviewed, based on their findings likely providing

important information bearing on the overall assessment of epidemiologic evidence

of significance for present purposes.
                                        -2-

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     Following the above modifications of introductory materials  in Section  14.1,
the next section (14.2) on air quality measurement considerations is to be expanded
to include summary statements derived from Chapter 3 discussions  of intercomparisons
between estimates of particulate matter levels obtained by various measurement
techniques.  Thus, immediately before the start of Section 14.3 at the bottom of
Pg. 14-34, there is to be inserted a relatively brief summary discussion concerning
the main conclusions derived from Chapter 3 regarding intercomparisons of particulate
matter measurement data obtained by means of high-volume (TSP) sampling, British
smoke (BS), and other (e.g., the AISI) particulate measurement techniques.  Note
will be made of the difficulties and limitations inherent in making such intercomparisons
and, based on this, the particulate matter measurement results employed in
particular studies discussed in Sections 14.3 and 14.4 are to be expressed there
only in terms of units appropriate for the specific measurement methodology
employed (e.g., in CoH units or yg/m  of either BS or TSP).  Only following
summarization of study results in terms of such original measurement units are
discussions of any potential interconversions between measurement units to be
included as part of later summary and conclusions materials in Section 14.5  and
elsewhere (e.g., Volume I).
     No attempt will be made here to list myriad changes in sequencing of text
materials now under Sections 14.3 to 14.5 of the April, 1980, External Review
Draft necessary to accomplish the reorganization of materials into the new Sections
14.3 and 14.4 listed under the revised format outlined above.  Rather, only
certain planned substantive content revisions (mainly large text deletions)  of
existing materials .in Sections 14.3 to 14.5 of the April draft are summarized
below before presentation of more detailed lesser errata corrections for the
Chapter.
                                        -3-

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     On pg. 14-47, Table 14-7 is to be deleted along with revisions and  reduction
in text at the bottom of pg. 14-46 and top of pg. 14-48, discussing the  Osaka and
Rotterdam studies.  The revisions are to note that the Biersteker    and Watanabe
studies report data or information on quantitative dose-effect relationships, but
insufficient information was reported to allow for evaluation of the adequacy of
study design (especially in regard to adjustments made for temperature effects).
     On pg. 14-51 to 14-52, the discussion of multiple regression studies by
Hodgson,158 Buechley,159'160 Lebowitz,170 and Lebowitz et a!.171 is to be shortened
considerably. Note is to be made that these studies provide mainly qualitative
data on associations between sulfur oxides (SO ) or particulate matter (PM) and
                                              J\
observed mortality effects but generally do not provide clear data on quantitative
levels of SO  or PM likely associated with such effects, with the exception of
            rt
the Beuchley studies   '     finding significant increases in mortality  when 24
hour mean S02 levels exceeded approximately 500pg/m .
     On pg. 14-56, 14-58, 14-59, the extensive quotation of material from Holland
et al.    concerning the Martin studies '   is to be deleted.  Also the  rest of
the text on pg. 14-59 is to be deleted, along with the text concerning the detailed
additional analysis of mortality effects observed in the Martin studies  '   that
runs from pg. 14-60 to 14-65.  Similarly, the rest of the text on 14-65  and 14-66
(top) on further analysis of the 1975 London and 1975 Pittsburgh episodes is to
be deleted.  The available reports or discussions of the 1975 London episodes do
not allow for more detailed analyses of the type indicated on pg. 14-65; and the
available report by Riggan et al. (1977)    on the Pittsburgh episode contains
information only on preliminary analyses that remain to be more definitively
completed, peer-reviewed and published.
                                       -4-

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     On pg. 14-70 to 14-71, table 14-16 on qualitative mortality studies is to be
moved to the appendices and referred to in Chapter 14 text only briefly, in
                                                                      199
summary terms.  Also, certain studies, such as those by Buck and Brown
                19                     20
Wicken and Buck,   Burn and Pemberton,    are to be added to qualitative studies
                                                           21-23
listed in Table 14-16.  Comments on the Winkelstein studies      and analyses
presented on pg. 14-73 to 14-81  would be especially valuable in order to resolve
whether to retain such detailed  discussion of these results as important quantitative
findings or whether to simply list the Winkelstein results in a table of qualitative
findings.
     On pg. 14-90, the summary table (14-21) is to be revised to show the 24 hour
particulate levels at which mortality effects were observed only in terms of the
original units (yg/m  BS; CoH units) in which such data were reported (and not
possible comparable TSP units).   On pg. 14-91, Table 14.22 is to be deleted.
     On pg. 14-93 to 14-95, the  Table (14.23) on qualitative studies of air
pollution and acute respiratory  disease is to be moved to the Appendices and only
brief summary statements regarding the table kept in the main text of Chapter 14.
                                     177 1?? 1?^
Comments on studies by Finklea et al.   '   ' '" are to be deleted from the
table.
     On pg. 14-96 and 14-97, text revisions are to be made that note the exclusion
from discussion in the April draft of studies carried out as part of the EPA
"CHESS" program.  Also, in that  connection, explanatory text will be inserted
stating that:  (1) The manner in which CHESS program study results were reported
and interpreted in summary form  in early 1970 publications and in more detail in
the 1974 "Sulfur Oxides Monograph" raised questions regarding possible inconsistencies
in data collection and analyses, as well as interpretation of the reported results;
                                      -5-

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(2)  Of particular concern were questions regarding the adequacy of air quality
data measurements (for TSP and SC^, as well as other pollutants) upon which key
quantitative conclusions were based regarding possible air pollution-health
effects relationships; (3)  Many of the outstanding questions regarding the CHESS
studies remain to be clearly resolved and, until such time that they are, the
potential usefulness of such studies is extremely limited in terms of yielding
well-defined information on air pollution-health effects relationships as they
might pertain to development of health effects criteria; (4)  Based on the above
considerations, CHESS program data sets and analyses will not be further discussed
in criteria document drafts, unless questions regarding accuracy of specific data
sets and their analyses have been satisfactorily resolved and reports on them
adequately peer reviewed.
     On pg. 14-102, the last sentence on the page is to be amended to note that,
since measurements of air pollution and pulmonary function reported in the Stebbings
      op                                     pi c
et al.   study and the Stebbings and Fogelman    study were not initiated until
after the peak of the 1975 Pittsburgh episode, it is impossible to clearly relate
any health effects observed in those studies to specific S0~ or PM levels. Consequently,
                                                    op pi f.
the rest of the detailed discussion of the Stebbings  '    studies on pg. 14-103
and top, pg. 14-104, is to be deleted.
     Also, on pg. 14-105 and 14-106, all text dealing with the Stebbings and
     ion
Hayes    report on a 1971-1972 New York "CHESS" Program panel study is to be
deleted, as per statements made earlier concerning exclusion from discussion of
CHESS Program studies due to unresolved questions regarding their reported results
and interpretations.  Similarly, the detailed text discussing the French et
al.306 New York ARD "CHESS" Program study is to be deleted from top, pg. 14-109
to top, pg. 14-133, including Tables 14-24 to 14-26 on pg. 14-110 to 14-112.
                                     -6-

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     On pg. 14-107 to 14-109, the discussion of the studies71' 205'210 by McCarroll
and associates is to be shortened (and reference to quantitative estimates of
pollutant levels associated with observed health effects deleted).   Consideration
will be given to including brief summaries of those studies in an appropriate
table of qualitative studies.
     On pg. 14-113, the detailed discussion of the Kalpalzanov et al.    study is
to be deleted and its results only briefly summarized in an appropriate table of
qualitative studies.
     On pg. 14-115 to 14-116, the discussions of the Kevany15 and Heinman54
             72 73
and Sterling   '   studies are to be deleted; the results of each are to be summarized
in an appropriate table of qualitative studies.
     The discussion of the Fletcher et al.    and Angel et al.   studies on pg.
14-117, is to be moved to the new Section 14.4 on chronic exposure effects,
rather than remaining under the text on acute effects as presently situated.  Note
will be made of difficulties in estimating quantitative levels of SO  or PM
                                                                    ^
associated with observed health effects, and other problems, which argue for
these studies to be included as part of an appropriate table of qualitative
studies.
     The text on the Verma et al.   study (bottom, pg. 14-120; top, 14-121) is to
be deleted and that study only mentioned briefly in an appropriate table of
qualitative studies.  Also, on pg. 14-121, the discussion of the "Ministry of
               CO
Pensions" study   is to be moved to the new Section 14.4 on chronic effects; note
will be made of problems with air monitoring data used in that study and other
methodological problems which mitigate against useful quantitative information
being extracted for present criteria development purposes.
                                          -7-

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                                       327  328
     On pg. 14-123, the Shephard et al.    *     discussion is to be deleted and
                   Iftfl
the Lebowitz et al.    study results  (including top pg. 14-124) briefly summarized
in a table of qualitative studies.
     Table 14-29, on pg. 14-125 is to be revised as follows:  (1) particulate
matter measurement data will be expressed only in terms of BS or TSP as originally
reported, with a column being added for BS in the table headings along side the
TSP (ug/m3) heading; (2) "qualitative" studies will be deleted from the table,
including those by McCarroll et al.,205'206 Cassell et al.,208' 209 Greenburg et
al.,196 Stebbings et al.,216 Stebbings and Hayes,190 Heimann,54 and British
                     fi?
Ministry of Pensions.
     On pg. 14-131 to 14-134, certain of the studies included in Table 14-30 as
yielding qualitative information on air pollution-health effects might be appropriately
deleted, except for ones providing data specifically elucidating associations
between health effects and SO  or PM.  Comments on which studies should be retained
                             X
as meeting such criteria, and which should be deleted as useless for present
purposes, would be helpful.
     The extensive discussion of the Irwig et al.98 and Melia et al.{new ref' #342)
reports on the British school children study, on pg. 14-139 to 14-149 (top), is
to be deleted.  Essentially no reference in the main body of Chapter 14 is to be
made to either the Irwig et al. or Melia et al. reports in view of the preliminary
nature of the analyses alluded to in the referenced papers and the lack of any
peer-reviewed published reports on "final" or completed analyses of the British
school children study.
                                                                          •JO
     On pg. 14-151 (top), the discussion of the study by Tsunetoshi et al.   is
to be deleted and  the results briefly summarized in a qualitative studies table.
                                     -8-

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Similarly, the Suzuki  et al.183 study discussion on pg.  14-151  (bottom) is to be

deleted and that study summarized in a qualitative studies table, as is also the
                           010 017     01Q           010
case for the Toyama et al.,  *f<3l/ Tarn"313 and Yoshii01* studies on pg. 14-152.

     On pg. 14-152 to  14-158, all text is to be deleted  regarding discussion of
                                                  pi o
the EPA "CHESS" studies reported by Chapman et al.  * for Utah  "CRD" and Chicago
"CRD" prevalence rate data sets.   Also,  on pg.  14-158 (bottom) and 14-159 (top)

discussion of the Yoshida et al.     is to be deleted and results of that study

briefly summarized in a qualitative studies table.

     Comments focusing on the discussion and interpretation of the studies by

       182                       90
Rudnick    and Douglas and Waller   on pg. 14-159 to 14-163 would be highly

useful, as would comments on the  Lunn et al.  '     studies discussed on pg. 14-

163 to 14-165. Rudnick182, Douglas and Waller90, and Lunn et al.96'97 appear to

to provide at least some reasonably well-defined air quality data by which quantitative

health effects - SO /PM air pollution relationships might be delineated (they
                   /\

have been interpreted by leading  experts in such a  manner). This, together with

otherwise apparently sound methodological features, argue for these studies being

strongly considered as potential  key studies in  arriving at final conclusions

regarding the epidemiology data  base for SO  and PM.
                                           A

     On pg. 14-165 to 14-177, all text is to be  deleted regarding discussion of

CHESS studies reported by Hammer  et al.214 and French et al.306 (on New York

"LRD" data), French et al.306 (on Utah "LRD" data), and Hammer113'257 (on Southeast

or Birmingham vs. Charlotte "LRD" data).  This is in keeping with statements

presented earlier regarding exclusion of CHESS studies from consideration in view

of questions that remain to be resolved concerning  data collection, analyses and

interpretation of results for CHESS Program studies.  Of all the various CHESS
                                        -9-

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studies to be deleted at this time, the Hammer113' 257 "Southeast LRD" study
appears to provide the most extensive and thorough data analyses potentially
leading to reliable quantitative estimates of air pollution (SO /PM)-health
                                                               ^
effects relationships. Also, there appears to be a reasonable possiblity of
resolving questions concerning the Hammer study   *57 within the time frame of
finalization of the present document.  Comments on that study would, therefore,
be helpful in determining its possible future consideration for inclusion in the
criteria document as a potentially key quantitative study.
     Comments focused on the Van der Lende et al. studies      discussed on pg.
14-178 would also be quite useful, in view of its having been interpreted by a
number of experts as yielding important information on quantitative health effects
air pollution (SO /PM) relationships.  Similarly, comments would be useful on the
                 ^\
        OO                    DC
Becklake   and Manfreda et al.   studies as potentially finding lack of evidence
                                                       3
of health effects at SOp and TSP levels around 100 yg/m  or less, as discussed on
pg. 14-178 and 14-179.
     On pg. 14-179 (bottom) and pg. 14-180 (top), the discussion of the Kagawa et
   pic  ?f)A
al.   '     studies is to be deleted and, at most, briefly summarized within a
                                                                    87
qualitative studies table.  The same applies for the Zapletal et. al   study
discussed at the top of pg. 14-180.
     Comments would be especially valuable regarding the discussions on pg. 14-
180 to 14-186 regarding the studies by:  Holland et al;101'102 Bennett et al.103;
rolley and Reid112; Ferris115; Mostardi and Leonard177; Mostardi and Martell258;
              215
and Shy et al.    (Cincinnati school children pulmonary function study).  At
least some of these studies appear to provide potentially useful information by
which quantitative health effects - air pollution .(SO /PM) relationships might
                                     -10-

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be defined, whereas others may be sufficiently flawed  methodologically
(e.g. in failure to control for smoking,  etc.) so as  to be rendered
essentially useless for present criteria  development  purposes.
     On pg. 14-186 to 14-188, all of the  text is  to be deleted  regarding
the "CHESS" studies reported on by Shy et al.215  (New York pulmonary
                                 213
function data) and Chapman et al.    (Birmingham  and  Charlotte  pulmonary
function data).
                                                       34 35
     Comments would be useful regarding the Neri  et al.      studies,
discussed on pg. 14-189, as well as  the other studies  discussed on pg.
                                                         98
14-190 to 14-195. However, the discussion of Irwig et al.    results, on
pg. 14-193 (bottom), is to be entirely deleted in view of the "preliminary"
nature of the results thus far reported.
     On pg. 14-196 to 14-197, Table  14-40 is to be revised, including:
                                             3                      3
(1) addition of a column heading for BS (ug/m ) along  side TSP  (yg/m )
and listing of particulate matter measurement data under only one of the
columns according to the original form or units reported for a  given
                                                                  109
study; and (2) deletion of CHESS Program  studies  (Goldberg et al.,
House et al.,108 Nelson et al.,114 Hammer,113'257 Shy et al.,215 Chapman
      213                                            99
et al.   ) and qualitative studies (Kerrebijn et  al.,    Yoshida et
al.,   ) consistent with deletions in text noted  above.     The present
Summary and Conclusions section (14.6) of Chapter 14,  starting  on pg.
14-199, is to be designated as Section 14.5 under the proposed  chapter
reorganization format outlined on the first two pages of the present  -
materials. Reflecting the planned format  change,  the  first paragraph on
pg. 14-199 is to be appropriately revised to note under points  (3) and
                                    -11-

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(4) that acute and chronic exposure effects discussions appear under
Sections 14.3 and 14.4, respectively* of the newly reorganized chapter.
Point (5) at the end of the first paragraph is to be deleted.
     On pg. 14-200, the last part of the last sentence of the  first
paragraph (text starting with "--not for the purpose...") is to be
deleted as unnecessary. The next paragraph on pg. 14-200 is to be revised
to make reference to Table 14-41 as summarizing the results of key
studies discussed earlier in the chapter as providing valid information
on quantitative relationships between acute exposures to sulfur oxides
or particulate matter and mortality and morbility health effects.
Reference is also to be made to Table 14-42 as containing similar summarization
of key quantitative studies concerning chronic exposure effects.
     Table 14-41, on pg. 14-201 and 14-202, is to be revised as follows:
(1) additional column headings for COH and BS measurement results in
    o                                            O
wg/m  are to be provided along side the TSP (ug/m ) heading; (2)  results
for particulate matter measurements will be entered under one  of the
three (BS; COH; TSP) columns only, as per the original units or form
reported for a given study; and (3) numerous deletions of entries from
the revised table are to be made.  Such deletions are to include: (a)
the first four sets of entries designated as being for British, Dutch,
Japanese, and USA studies under episodic mortality; and (b) the morbidity
study entries for Stebbings and Hayes,    McCarroll et al.,    Cassell
et al.,208*209 and Stebbings and Fogleman.216
                                   -12-

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     On pg. 14-203, changes analogous  to the first two  types  listed  above
for Table 14-41  are to also be made in Table 14-42.   Entries  are  to  be  deleted
                                            1 ftft                         1 fi  l ft
from Table 14-42 for studies by Winkelstein,    Zeidberg  and  colleagues,
Hammer et al..214 Goldberg et al.,109  House et al.,108  Nelson et  al.,114
Hammer,113*257,  Shy et al.,215 and Chapman et al.213
     From pg. 14-205 to pg. 14-208 (top, before heading for Section  14.6.2),
all text for present Section 14.6.1.1  is to be deleted.   The  text under
Section 14.6.2 (pg. 14-208 to 14-214), however, is to remain, as  is  the text
under Section 14.6.3 (pg.  14-215 to pg. 14-251).
     On pg. 14-245, Figure 14-8 is to  be deleted and the  differences between
evaluations of key studies between Holland et al.    , WHO    and  other  reviewers
briefly discussed only in  new text inserted on pg.  12-244.  Study results for the
Osaka (1962), Rotterdam (1960's), France (1973),  Tokyo  (1970), and Southeast
USA (1969-71) entries in the figure will not be discussed.  The mistaken data
entry for "Chicago-(1972)" in the figure actually refers  to Mostardi's177'258 studies
in Ohio (1972),  and the entry in the key to the right for Apling  et  al., Waller
(1977-78) London is for Apling et al.; Weatherly and Waller (1977-78) London.
Discussion of differences  in the reviewers' evaluations of study  results will note
where the particular review "translated" original estimates of health effects-associated
particulate matter levels  associated with health effects  from original  COH  or
BS units to approximate corresponding  TSP levels.
     Lastly, at the end of Chapter 14, copies of summary  tables now  appearing
only in Volume I of the document (as Tables 1-19 to 1-22) are to  be  inserted  to
summarize the evaluations  of different reviews for key  quantitative  studies.
                                 -13-

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The tables will be the same as present Tables 1-19, 1-20, and 1-21,  except
for those modifications discussed for those tables earlier, under present
corrigenda materials for Chapter 1.  Appropriate text will also be inserted
to discuss the reviewers' evaluations summarized in the tables and definite
statements made regarding which studies appear to be generally viewed as
being valid and conclusions that can appropriately be drawn based on those
study results.
                                   -14-

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                                                                             7/9/80
                                 Chapter 14 -  PM/SO
                                       Errata

Page   Par/Line          Delete                             Insert


14-4   2/1         Note:   The "Lowrance (1976)"  reference cited is listed as
                   reference #343 on attached  completed reference list.

14-16  2/4         Note:   The "WSL (1967)"  reference cited is listed as  reference
                   #344 on attached completed  reference list.

14-16  6/1         Note:   The "WSL (1967)"  reference cited is listed as  reference
                   #344 on attached completed  reference list.

14-16  7/3         Note:   The "WSL (1967)"  reference cited is listed as  reference
                   #344 on attached completed  reference list.

14-17  Fig 14-1    Note:   The "WSL (1967)"  reference cited is listed as  reference
                   #344 on attached completed  reference list.

14-18  2/9         Note:   The WSL Instruction  Manual (1966) is listed as reference
                   #345 on attached completed  reference list.

14-21  3/10        Holland et al. (1979)              Holland et al. (1979)

14-26  2/11                                           52 after:  of Pensions"
                                                      Qfi
14-26  2/11                                              after:  Douglas and Waller

14-28  2/8                                            107 after:  (IR)

       4/5                                            107 after:  (IR)

       4/11                                           107 after:  (IR)

14-29  ft.nt C                                        107 after:  IR

14-30  1/3                                            107 after:  IR

14-31  1/3                                            107 after:  IR

14-31  2/5                                            average  before:   flow  rate

14-31  2/5         measured value                     calculated  concentration

14-34  3/4         10 or, at most,  30 percent.        10  to  30 percent.

14-50  3/1         References 185,  186

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Page   Par/Line
   Chapter 14 - PM/SO  Errata (continued)
                     /\
      Delete                             Insert
14-51  1/3
       1/6

       1/7

14-127 1/12
       1/12
14-214 2/11
       2/13

       2/14

14-226 2/2
14-227 2/9
14-237 -
Reference 185
associations 	in
decreasing	span.
Thoraic Society
Ferris2143
and particulalte
last sentence of footnote "a1
for Table 14-52
Reference 184
changes in associations between
decreasing
recorded mortality rates over
the 1963-1972 time span.
    after:   Goldsmith
    after:   Speizer
Thoracic Society
containing an epidemiology
evaluation chaptecnby Higgins
and Ferris (1978) JU/
containing an epidemiology
evaluation chaptecnby Speizer
and Ferris (1978)5UO
Ferris3143
any parti cul ate
Note:  See attached changes  for  Chapter  14  reference  list.

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                 Changes to References for Chapter 14 - PM/SO
     Certain Chapter 14 reference numbers represent studies deleted from earlier

drafts of Chapter 14 or designate studies now to be deleted in keeping with

changes in text noted earlier in Chapter 14 corrigenda comments.   Thus, the

following Chapter 14 reference numbers should be disregarded:   98; 108-111;

113-117; 120-124; 190; 212-214; 314;  342.

     References for studies cited in  Chapter 14 but not listed in the original

reference list, as noted in earlier corrigenda comments or text errata listings,

are as follows:


342.  Melia, R.  J. W., C. duV. Florey, and A. V. Swan.   The effect of atmo-
     spheric smoke and sulfur dioxide on respiratory illness among British
     schoolchildren:  A preliminary report.  Paper given at the Vllth Inter-
     national Scientific Meeting of the International  Epidemiological Association,
     Puerto Rico, 1977.

343.  Lawrence,  W. W.  Of acceptable risk, science and determination of safety.
     Los Altos, William Kaufman, 1976.

344.  Warren Spring Laboratory.  The Investigation of Atmospheric Pollution
     1958-1966.  Thirty-second report.  Her Majesty's Stationary Office, London,
     1967.

345.  Warren Spring Laboratory.  National Survey of Smoke and Sulfur Dioxide,
     Instruction Manual.  Warren Spring Laboratory, Stevenage, England, 1966.

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                   UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
   DATE:  July 9, 1980

SUBJECT:  Errata for the April, 1980,  First External  Review Draft of the EPA
         Particulate Matter and Sulfur Oxides (PM/SO )  Criteria Document
                                                    X

   FROM:  ECAO, EPA/RTP/N.C.
     T0:  Recipients of the first external  review draft (April  1980)  of the
          Particulate Matter and Sulfur Oxides criteria document
              The attached materials include corrigenda comments regarding contem-
         plated major text revisions, other lesser corrections (deletions/insertions),
         and reference clarifications and additions for various chapters of the
         April, 1980, external review draft of the PM/SO  criteria document.
                                                        A

              The corrigenda comments on chapters 1, 3, and 14 signal  major
         revisions comtemplated for a second external  review draft based on
         comments and other new information obtained since finalization and
         release of the April external review draft.  The lists of errata mainly
         concern:  (1) errors in reference citations and (2) editorial changes
         intended to clarify textual meaning or errors in technical content.
         Complete reference lists for chapters 2, 3, 6, 9, and 13, including
         corrected citations, are provided.  There are no comments or errata
         sheets for chapters 4 or 8.

              These errata and descriptions of contemplated changes are being
         circulated at this time in order to facilitate informed and focused
         public discussion of EPA's criteria revision efforts.  Certainly,
         additional changes and, possibly, modifications to these contemplated
         changes may need to be made in response to public comments on the First
         External Review Draft received by July 31, 1980, and advice received
         from the Clean Air Scientific Advisory Committee (CASAC) of EPA's Science
         Advisory Board.  Full and adequate opportunity for public comment on any
         of these contemplated changes or other modifications incorporated in a
         second external review draft to be made available to the public and
         CASAC.

         Atch
 EPA Form 1320-6 (Rev. 3-76)

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2/3
1/7
--
1/4
Table 1-6
"
3/2,3
1/5,6
1/3
1/8,9
2/3
cyslone
-
Parting
Note: Table 1-2 is actually
text, and Table 1-3 is
10 or, at most, 30 percent
Ref. 118 (3 instances)
Ref. 118 (1 instance)
Polyester, acrylic...
acid hydrolysis
One study... 50 percent
are
or other agents. . .conditions.
_
cyclone
< before: 2.5 urn
Party
Table 1-3 cited in the
actually Table 1-2
10 to 30 percent
Replace with Reference 272
Replace with Reference 272

One investigator (Lippmann,
1977) calculated that about
10 percent
may be
Period after: ...absence
of ammonia.
(at concentrations <1 mg/m
   -100  1/1


•/I-100  1/2
A-
  100  1/3
                                   or  5  ppm,  respectively)
                                   after:   alone

summarized in Tables  1-8 and 1-9,   of  certain studies  discussed
                                   in  Chapter 12,

                                   at  relatively  high  exposure
                                   levels  (>1 mg/m ).   after:
                                   health  effects

                                   , with  relatively few  having
                                   been  observed.,at concentra-
                                   tions <1 mg/m  .   after:
L-100  1/10
A-
  101   1/1
                     ZnS04  and
pathophysiological
dependent

ZnS04(NH4)2S04

physiological

-------
                         Chapter 1 - PM/SOx Errata (continued)

  Page   Par/Line          Delete                             Insert


>/l-101  1/3         and increased flow resistance and
                     compliance,

/1-104  Table 1-11                                     Table title - line 2:   < before:
                                                        13.1 mg/m

 vl-107  2/1         to 1310 mg/m3 (500 ppm) S0?        in a 180 liter chamber into
                                               *        which 1310 mg/m13 (500 ppm)
                                                        SOp was injected at a rate
  ,                                                      of 20 ml/min

^1-110  Table 1-13  Hazucha and Bates, 1975 from
                     "Reference" column, line 8

 v1-110  Table 1-13  Significant decrease in FVC,       Significant decrease in MEFR;
                     FEV, 0, MMFR, MEFR from "Effects"  FVC, FEV, Q, MMFR also de-
                     column, lines 6,7                  creased

  1-110  Table 1-13                                     ; at 1 ppm, one subject ex-
                                                        perienced 7% increase in
                                                        flow resistance; another, a
                                                        23% decrease after:  nasal
                                                        breathing, "Effects" column,
                                                        line 17.

^1-144  1/6         states                             sites

^1-145  2/1         study                              studies

vl-152  —          Delete last sentence of footnote
                     "a" for Table 1-24

-------
Chapter 2 - PM/SO
      Errata
Page
/2-10
•/2-26
A/2-27

^-27
i/2-30
^2-34
/2-34
'2-34
'2-35

u^-50
/
^2-52




^2-59

'2-60
•^-ei
^2-63
"4-63
«4_66
^4-68
/2-78
Par/Line
3/5
3/9
2/3

4/3
1/7
3/2
3/3
3/5
Ref.

Ref.

1/8




2/3

2/5
2/3
2/5
3/7
3/7
1/2
1/9
Delete
-
-
Instrumentation for Environmental
Monitoring, Air, 1972
ditto
_
-
EQS0775001
EQS0775002
_

-

-




Methods of Air Sampling and
Analysis, 1972
Brosset and Perm (1978)
(1974)
1974,

1973
1975
1977
Insert
ed. , after: Dennis
, undated after: Corp.
Lawrence Berkley Laboratory,
1972
ditto
, undated after: Instruments
a after: 1975
EQS-0-775-001
EQS-0-775-002
U.S. Environmental Protection
Agency (1979c)
U.S. Environmental Protection
Agency (1979c)
New sentence after: 2-4.
"Although only every tenth
point is plotted, the statistical
analysis pertains to the
entire data set."
Intersociety, 1972

Stevens et al. (1978)
(1969)

1977 before: 1977a
1974
1976
1978

-------
Page   Par/Line
Chapter 2 - PM/SO  Errata  (continued)
                 XX


   Delete                            Insert
/2-87



J 2-87


/2-90

x/2-100

•4-111
^2-120
'2-120
^2-139
2/12



2/14


-

2/10

3/4
1/8
4/2
3/2
Current



Sampler (ES and T Outlook, 1978)
have o values
g




Bernard
1979
new
Goo id
An article in Environmental
Science and Technology
(-, 1978) describes the
results for current -
Sampler. The o values
varied ^

New page 2-90a, attached.
(Table 2-11)
Threshold Limits Committee
before: 1968
Barnard
1980
possible
Goold
 Note:   Completed reference list attached.

-------
                         Chapter  3 -  PM/SO   Errata  (continued)
                                         ^


  Page    Par/Line           Delete                             Insert





k/3-94    2/1         1968                               1978



,/3-B7    2/1         -                                   et al.  after:   Muylle



 ^110   1/10         Table  3-8                           Table 3-9



^3-113   1/18         Dalager  (1975)                      Dalager (1974)



t/3-116   2/4         one                                 two



         1/3         R  >  50%                             R < 50%



         3/2         -                                   the effect of after:   showing
 /                           2
^3-128   1/1         sum  of \ ,                          chi-square statistic



  3-135   3/4         -                                   sampler after:   hi-volume
         2/4         (1972)                              (1977)



  Note:   List of  additional  recommended  references  attached.



  Note:   Completed  reference list attached.

-------
   Additional References Recommended for Consideration  in Chapter  3,  PM/SO
                                                                          A
Bailey, D. L. R., and P. Clayton.  The measurement of suspended  particulate
     and carbon  concentration  in the atmosphere using standard smoke  shade
     methods.  Report LR 325 (AP), Warren Spring  Laboratory,  Stevenage,  1980.

Heindryckx, R.   Significance of total suspended particulate matter, as determined
     by optical  density measurements.  BECEWA, 1974.  (as cited  by Kretzschmar,
     1975).

Ledbetter, J. 0., and B. P. Cerepeka.  Obscuration versus aerosol  concentration.
     J. Environ. Sci. Health A15(2):173-181, 1980.

Rosen, H., A. D. A. Hansen, R. L. Dod, T. Novakov.  Soot in urban  atmospheres:
     Determination by an optical absorption technique.  Science  208:741-744,  1980.

Swinford, R.  L., and D. J.  Kolaz.  Field correlation of TSP data from a  continuous
     particulate monitor and high volume air samples.   Paper  80-38.3, 73rd
     APCA, Montreal, Canada, 1980.

Wall in, S. C.  Calibration  of  the D.S.I.R. Standard Smoke Filter for  Diesel
     Smoke.   Int. J. Air Wat.  Poll. 9:351-356, 1965; and discussions  by
     Lindsey, A. J., M. Corn,  S. R. Craxfor, L. R. Reed, and  S.  C.  Wallin,
     IBID, 10:73-76, 1966.

-------
           Chapter 4 PM/SO
                          /\


(No errata  or revisions at this time.)

-------
                               Chapter 5 - PM/SO
                                     Errata
 Page   Par/Line
                          Delete
      Insert
"5-3 3/5
'/5-20 ft-nt
^-20 ft-nt
23
mg/m

20
3
after cumulative:
^3-58" -

./3-60" -
A-
5-99   legend
                   Entire  page  (stray  from  Ch.  3)
                   (does not apply  to  all copies)

                   Entire  page  (stray  from  Ch.  3)
                   (does not apply  to  all copies)
percentage

Pg 5-58 (attached)
Pg 5-60 (attached)

after densities:  for nitrogen
dioxide

-------
SOX2B/A  6-9-80 receded

county having the highest annual average value.  It is not possible to determine
whether concentrations are more or less uniform across the county or whether
they are localized.  However, several general impressions are obtained about
national TSP conditions.  High concentrations can be found in almost every
State.  Many populated counties have high concentrations (for example, New
Jersey-New York City, Pittsburgh, Harrisburg, Chicago, and Los Angeles).
Several sparsely populated counties also have high concentrations.  Arid regions
as well as industrialized counties have high levels.
     The AQCR attainment status for the daily NAAQS is shown in Figure 5-19,
which is based on the same 1977 NADB TSP data.  The same comment made above
applies to the 24-hr measurements.  A violation of NAAQS for TSP at one loca-
tion does not necessarily imply a higher health risk for the entire population of
that area.  The health implications even for those living near a site in vio-
lation are not clear.  Populations living in attainment areas but exposed to TSP
high in trace metals, for example, might have a high health risk.
     A closer look at the site descriptions for stations that recorded violations
suggests that the reasons for violation are quite variable.  As discussed earlier,
it seems clear that  industrial sources contribute significantly to TSP levels at
many sites.  This is not so  obvious at other sites, however.  Some extremely
high concentrations  experienced at monitors in Arizona, New Mexico, and elsewhere
are most likely associated with surface dust suspended by the wind.  Without a
careful site inventory or perhaps detailed analysis of TSP chemical and elemental
composition, the specific reasons for TSP violations are unknown.
5.2.1.6  Severity of Peak TSP Concentrations—The geographic displays of attain-
ment status are only one way of conveying the extent of the TSP pollution problem.
To indicate the severity of  TSP ambient exposures, the 90th percentile concen-
                                        5-58

-------
                              Chapter 6 - PM/SO
                                    Errata
Page   Par/Line
                           Delete
                                         Insert
./6-
6-37
       1/14



       1/5



       2/9
^6-42
^-42
•/6-42
^6-46
>/6-47
v/6-48
^-52
/6-S2
•/6-53
^-72
v/6-72
^6- 73
^-w
y6-87
v/C_Q7
2/2
2/4
2/14
5/5
2/10
3/2
2/4
2/12
-/9
2/5
2/6
-/6
2/4

1979



1979



1977



Low, 1971



1979



1979



Durham et al.  1979



1979



1979



1974



1979



1979



SI inn et al. (1979)



1975



1975



White and Roberts (1975)



Lewis and Macias (1979)



Schurmeier



1976
1978a



1978



1978



Low,1969



1978



1978



Durham et al. 1978



1980



1977



1976



1978



1978



SI inn et al. (1978)



1980



1980



White and Roberts (1980)



Lewis and Macias (1980)



Schiermeier



1976a
 Note:  Completed reference list attached.

-------
6.7  REFERENCES.

Altshuller, A. P.  Model Predictions of the Rates of Homogeneous Oxidation of
     Sulfur Dioxide to Sulfate in the Troposphere.  Atmos. Environ. 13:1653-1662,
     1980.

Altshuller, A. P. Regional transport and transformation of sulfur dioxide to
     sulfates in the United States.  J. Air Pollut. Control Assoc. 26:318-324,
     1976.

Angell, J. K., W. H. Hoecker, C. R. Dickinson, and S. H.  Pack.  Urban influence
     on a strong daytime air flow as determined from tetroon flights.  J.
     Appl. Meteoral. 12:924-936, 1973.

Appel B. R., S. M. Wall, Y. Tokiwa, and M. Haik.  Interference effects in
     sampling particulate  nitrate in ambient air.  Atmos. Environ. 13:319-325,
     1979.

Appel, B. R., E. L. Kothny, S. Wall, M. Haik, and R. L. Knights.  Diurnal and
     spatial variations of organic aerosol constituents in the Los Angeles basin.
     In:  Proceedings of the Conference on Carbonaceous Particles in the Atmo-
     sphere,  Lawrence Berkley Laboratory, Berkley, CA, March 20-22, 1978.

Bachman, J., ed.  protecting Visibility:  An EPA Report to Congress.  EPA-450/5-
     79-008, U.S. Environmental Protection Agency, Research Triangle Park, NC,
     1979.

Backstrom, H. L. J.  The chain mechanism in the auto-oxidation of sodium
     sulfite solutions.  Z. Phys. Chem. 625:122-128, 1934.

Bigelow, J. Z., 1898.

Boulaud, D., J. Bricard, and G. Madelaine.  Aerosol growth kinetics during S02
     oxidation.  Atmos. Environ. 12:171-177, 1978.

Brosset, C.,  K. Andreasson, and M. Perm.  The nature and  possible origin of
     acid particles observed at the Swedish west coast.   Atmos. Environ.
     9:631-642, 1975.

Bull. Alabama Air Pollut.  Control Comm., 1975.

Calvert, J.  G., F.  Su, J.  W. Bottenheim, and 0.  P. Strausz.  Mechanism of the
     homogeneous oxidation of sulfur dioxide in  the troposphere.  Atmos.
     Environ. 12:197-226,  1978.

Chamberlain,  A. C.  Movement of particles in plant communities.   In:  Vegetation
     in  the  Atmosphere.  J. L. Monteith, ed., Academic  Press  Inc., New York.
     1975.    pp.' 155-201.

Chang,  S. G.,  R. Brodzinsky, R. Toossi, S. Markowitz, and T.  Novakov.  Catalytic
     oxidation  of S02  on carbon  in aqueous solutions.   In:   Proceedings  of
     Carbonaceous Particles in the Atmosphere,  Lawrence  Berkeley  Laboratory,
     Berkeley,  Calif., 1978.


                                        6-112

-------
                                Chapter  7  -  PM/SO
                                      Errata
 Page   Par/Line


*/7-40
                          Delete
                                                     Insert
 -41
Column 8

Column 8
7-187  Ref.
       473
Ref.  118 (3 instances)

Ref.  118 (1 instance)

Entire reference
Replace with reference 272

Replace with reference 272

473.  Wilhour, R. G.,
G. E. Neely, D. E. Weber,
and L. C. Grothaus.
Response of Selected Small
Grains, Range Grasses and
Alfalfa to Sulfur Dioxide.
CERL-50, U.S. Environmental
Protection Agency, Corvallis
Environmental Research
Laboratory, Corvallis, OR,
February, 1979.

-------
           Chapter 8  PM/SOV
                          X


(No errata  or revisions  at this  time.)

-------
                              Chapter 9 - PM/SC)
                                    Errata
Page   Par/Li ne
Delete
Insert
J 9-17
j 9-22
/9-25
Jg-29
A- 33
v/9-48
.
A-65
v/9-65
1/4
3/10
ft-nt
2/6
1/3
-n

3/4
3/4
Rosen and Novakov, 1979
Mac i as et al., 1975
Waggoner and Weiss (1979)
7:1
_

7:1
] after: relative humidity
Rosen, et al. , 1980
Macias and Husar, 1976
Waggoner and Weiss (1980)
et al. after: Waggoner
7 ± 1
Husar, et al., 1979
after: United States.
7 ± 1
] after: (ug/m3)
Note:  Completed reference list attached.

-------
9.6 REFERENCES
Allen, J., R. B. Husar, and E. S. Macias.  In:  Aerosol Measurement.  D. A.
     Lundgren, ed., University Presses of Florida, Gainesville, FL, 1978.

Altshuller, A. P.  Atmospheric sulfur dioxide and sulfate, distribution of
     concentration at urban and  nonurban sites in the United States.  Environ.
     Sci. Technol. 7:709-713, 1973.

Angel 1, J. K., and J. Korshover.  Variation in sunshine duration over the
     contiguous United States between 1950 and 1972.  J. Appl. Meteorol. 14:
     1174-1181, 1975.

Barnes, R. A., and D. 0.  Lee.  Visibility in London and atmospheric sulfur.
     Atmos. Environ. 12:791-794, 1978.

Bergstrom, R. W.  Beitr.  Phys. Atmos. 46:223, 1973.

Bolin, B., and R. J. Charlson.   On the role of the tropospheric sulfur cycle
     in the shortwave radiative  climate of the earth.  Ambio 5:47-54, 1976.

Cass, G. R.   On the relationship between sulfate air quality and visibility
     with examples in Los Angeles.  Atmos. Environ. 13:1069-1084,  1979.

Chandrasekhar, S.  Radiative Transfer.  Dover Publishers, New  York, 1960.

Changnon, S.  A., Jr.  The La Porte weather anomaly—fact or fiction?  Bull.
     Am. Meteorol. Soc. 49:4-11, 1968.

Charlson, R.  J., D. S. Covert, T. V.  Larson, and A. P. Waggoner.   Chemical
     properties of tropospheric  sulfur aerosols.  Atmos. Environ.  12:39-53,
     1978.

Charlson, R.  J. , A. H. Vanderpp.1, D.  S. Covert, A.  P. Waggoner, and N. C.
     Ahlquist.  H?SOA/(NHd)?SO.  Background aerosol:  optical detection  in
     St. Louis region".  AtmSs. Environ. 8:1257-1268, 1974.

Eggleton, A.  E. J.  The chemical composition of atmospheric aerosols  on
     Tees-side and its relation  to visibility.  Atmos.  Environ. 3:355-372,
     1969.

Eiden, R.  Determination  of  the  complex  index of refraction of spherical
     aerosol  particles.   Appl. Opt.  10:749-754, 1971.
                                      9-70

-------
^10-
 VI n-
Ao-97
t/lO-
                               Chapter 10 - PM/SO
                                     Errata
 Page   Par/Line
                           Delete
        2/7

    47  3/5-6
v/10-93  Ref 6

/LO-94  Ref 6

7lO-
•94   Ref 6
  10-94  Ref 9
 10-95  Ref 1
        Ref 9
    97  Ref 16
                Haagen Reed and Ottaz

                sulfate particles	
                ... .by acid hydrolysis

                1960 after: 1969.

                Evgang
                    Haagenrud—etc
                 Rosenfeld  (1973)
                                                          Insert
                                                       Haagenrud and Ottar
                                                       Ergang

                                                       After M.  B.  Rockel.:   Corrosion
                                                       resistance of stainless steels in
                                                       the atmosphere - evaluation of the
                                                       results of weathering tests of up to
                                                       10 years duration.
                                                       After Fleetwood, M. J.:
                                                       coatings
                                                                             Zinc
Haagenrud, S., and B. Ottar.
In:  Proc. of the Seventh
Scandanavian Corrosion Congress,
Trondheim, Norway, 1975, as
cited in Kucera, V. Effects
of sulfur dioxide and acid
precipitation on metals and
anti-rust painted steel.
Ambio 5:243-248, 1976.

Rosenfeld 1973, as cited in
Nriagu, J. 0. ed., Sulfur
in the Environment.  Part II:
Ecological Impacts.  John
Wiley and Sons, Inc., New
York, 1978.  pp. 17-18.

After H. Ternes.:  Rate of
corrosion of plain carbon
and low-alloy structural
steels.

-------
                                                                                 7/9/80
                                Chapter 11 - PM/SO
                                      Errata
Page   Par/Line
                            Delete
                                                         Insert
    -9   4/3
 Jll-B   4/4
 Al-11  1/3
  11-34  Fig.
         Legend
 Sll-35  -/I
 /LI- 46  4/4
 Al-47  1/1
 Al-51  2/8
 Al-60  3/3
 /11-60  3/3
 ^ 11-61  4/7
  11-62  2/11
 /LI- 62  2/12
  .ll-82a,
x/b.c.d,
                et al.  (after  Adams)-
                Hansen,  et  al.,  1974-
                George  and  Breslin,  1976
                1969
                1970
                1951
                Proctor et  al.
                Proctor and Wagner,  1967;

                Camner  et al
 /New
J 11-
105
                                                      b,  after:   Raabe et al.  1976
                                                      and Davenport,  after:   Adams
                                                      Hasen and  Ampaya, 1974 after:
                                                      Nagashi, 1972
                                                      (expressed as fraction of
                                                      particles  entering trachia)
                                                      after:   tracheobronchial  (TB)
                                                      deposition
                                                      George and Breslin, 1967
                                                      1970
                                                      1971
                                                      1957
                                                      Proctor and Wagner

                                                      et al., 1971. after:   Dadaian
                                                      Camner and Philipson
                                                      and Davia, after:  Thomson
                                                      Attached 2h pages of text
                                                      and one figure on Respirable
                                                      Aerosol Sampling at end of
                                                      chapter.
                                                      New page,  11-105 (attached),
                                                      with 7 additional references.
  Note:  List of additional recommended references attached.

-------
                 Missing reference page 11-105 from first printing
                              Chapter 11 - PM/SOx


    Wilson, T. A., and K. Lin.  Convection and diffusion in the airways and the
         design of the bronchial tree.  In:  Airway Dynamics Physiology and
         Pharmacology.  A. Bouhuys, editor.  Springfield, 111.  Thomas 1970.
         pp. 5-19.

    Wolff, R. K., M. Dolovich, C. M. Rossman, and M. T. Newhouse.  Sulfur dioxide
         and tracheobronchial clearance in man.  Arch. Environ. Health 30:521-527,
         1975.

    Yeh, H. C.  Use of a heat transfer analogy for a mathematical model of
         respiratory tract deposition.  Bull. Math. Biol. 36:105, 1974.

    Yeh, H. C., A. J. Hulbert, R. F. Phalen, D. J. Velasquez, and T. D. Harris.  A
         steroradiographic technique and its application to the evaluation of  lung
         casts.  Invest. Radiol. 10:351, 1975.

    Yeh, H. C., R. F. Phalen, and 0. G. Raabe.  Factors influencing the deposition of
         inhaled particles.  Environ. Health Persp. 15:147, 1976.

    Yu, C. P.  An equation of gas transport in the lung.  Resp. Physiol. 23:257,
         1975.

    Yu, C. P.  Precipitation of unipolarly charged particles in cylindrical and
         spherical vessels.  J. Aerosol Sci. 8:237, 1977.
Page   Par/Line

11-86  After
       8th Ref.
11-93  After
       llth Ref.
11-96  After
       5th Ref.
      Chapter 11 - PM/S09
            Errata
  REFERENCE LIST CORRECTIONS

Delete
      Insert

Clements, J. A., J. Nellenbogen,
and H. J. Trahan.  Pulmonary
surfactant and evolution of
the lungs.  Science 169:
603-604, 1970.

Kawecki, J. M. Emmission of
Sulfur-Bearing Compounds
from Motor Vehicle and Air-
craft Engines, A Report to
Congress.  EPA-600/9-78-028,
U. S. Env. Prot. Agency.
Aug. 1978.

Menzel, D. B.  The role of
free radicals in the toxicity
of air pollutants (nitrogen
oxides and ozone).  In:
Free Radicals in Biology,
Vol. II, Academic Press,
New York, 1976.  pp. 181-202.

-------
                                   Chapter 12  -  PM/SO,
                                         Errata       ;
  Page   Par/Line
                          Delete
                                                     Insert
N/12-8   -/I
/ 12-16  4/2-3
                    Kikigawa and Sizuka
                    Sentence:  Mice	lifetimes.
^2-17
A2-17

712-20  Col.l
v!2-21
Col.  1 & 2  1310     500
            300 days
         Col. 3
         line 6
   2-98  1/14
 , 12-100 3/8-9

-------
                                  Chapter 12 - PM/SO
                                     Errata (cent.)
  Page
  /	
Par/Line
Delete
^12-105 Col 5

A2-115 2/1, 2
-^ 12-117 2/6

Aa-124 2/2

 ^2-124 2/3

Jl2-124 2/4
  12-125 2/12,13
    -129 2/8

   2-130 1/10

    -151 Ref. 233
            Gardner et al.
                          154
            Peacock and Spence.  .  .  .
            .... for two years.
            Ref. 392

            absorption and

            is
            In a different study
            .  .  .  .(500 ppm) S02
            initiating
            L. Whittenberger
Insert
                             Gardner et al.
                                           145
                                                                       V327
                             Peacock and Spence (1967)'
                             exposed LX strain mice,  over their
                             lifetimes, in a 180 liter chamber
                             into which S0_ at a concentration
                             of 500 ppm (1310 ug/m )  was
                             injected at a rate of 20 ml/min for  5
                             minutes, 5 days/week.

                             Ref. 292
                             is retained somewhere in the
                             respiratory system,   after:
                             amount

                             In a different study, mice were
                             exposed over their lifetimes in
                             a 180 liter chamber into which
                             SO- at a concentration of 500
                             ppm, (1310 ug/m ) was injected at
                             a rate of 20 ml/min for 5 minutes,
                             5 days/week.

                             irritating

                             comma after:  volume

                             J. L. Whittenberger
  Note:  List of additional recommended references attached.

-------
                                Chapter 13 -  PM/SO
                                      Errata
Page
^13-5

,7/3-5

/L3-5

7 13-9
7l3-ll
Par/Line
Col. 4
8th Ref
Col. 4
6th Ref
Col. 4
llth Ref
2/1
-/16
Delete
Odor Threshold, 1968

Holmes, 1954

Bushtueva et al. , 1960

Bushtueva et al. (1960)

Insert
Arthur D. Little, Inc. 1968

Holmes, 1915 (see Greenwald,
1954)
Bushtueva, 1962

Bushtueva (1962)
In "Effects" column entry
•J13-12  -710


^13-12  -711



As-13
Col.  7
2nd Ref

-72
>/13-16  2/11

^13-22  3/1

As-23  2/1
                                                       for  Frank et  al.,  1962,
                                                       after  ... nasal  breathing:;
                                                       at 1 ppm, one subject  ex-
                                                       perienced 7%  increase  in
                                                       flow resistance, another a
                                                       23%  decrease
In "Reference" column:
Hazucha and Bates, 1975
In "Effects" column:   Significant  Significant decrease in
decrease in FVC, FEV, Q, MMFR,     MEFR; FVC, FEV, Q, MMFR
MEFR                 '              also decreased '
Wolff et al., 1975b
                     Lawther  and  Bond  1955

                     1975b

                     1975b
                                                       Wolff et al., 1977
                                   In "Effects" column entry
                                   for Jaeger et al., after ..
                                   30 minutes:; 3 subjects in-
                                   curred delayed effects and
                                   required medication.

                                   Lawther 1955

                                   1977

                                   1977
 113-?.6  3/4
 '13-26  4/2
                                     EPA before estimate
                                     EPA before estimate

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  Page   Par/Line
                          Chapter 13  -  PM/SOx  Errata  (cont.)

                            Delete
      Insert
/13-27  Col. 6
        7th Ref
        8th Ref
73-28  2/3
A3-28
/.
   5-^0
        2/12

        2/7

   3-38  2/4
   3-:

/13-'
 A3-:
N/13-38  2/5
                     Koenig,  1979

                     Koenig,  1979
    -40  1/16
                    estimated
                    estimated

                    1968
Koenig et al. ,  1979

Koenig et al. ,  1979

;  EPA before estimate
EPA before estimate

1973 after:   Hazucha

EPA estimate of
EPA estimate of

1978
  Note:  Completed reference list attached.

  Note:  List of additional recommended references attached.

-------
                                                                              7/9/80
                                  Chapter 14 - PM/SO
                                        Errata
  Page   Par/Line          Delete                             Insert

^4-4   2/1         Note:  The "Lowrance (1976)" reference cited  is listed as
                    reference #343 on attached completed reference list.
     IS  2/4         Note:  The "WSL (1967)" reference cited  is  listed as  reference
                    #344 on attached completed reference  list.
•14-16  6/1         Note:  The "WSL (1967)" reference cited  is  listed as  reference
                    #344 on attached completed reference  list.
^14-16  7/3         Note:  The "WSL (1967)" reference cited  is  listed as  reference
                    #344 on attached completed reference  list.
     17  Fig 14-1    Note:  The "WSL (1967)" reference cited  is  listed as  reference
                    #344 on attached completed reference  list.
"6.4-18  2/9         Note:  The WSL Instruction Manual (1966)  is listed  as reference
                    #345 on attached completed reference  list.
  14-21  3/10        Holland et al. (1979)              Holland  et  al. (1979)301
 /                                                     6?
y!4-26  2/11                                               after:   of Pensions"
 -14-26  2/11                                           90 after:   Douglas and Waller
     2B  2/8                                            107 after:   (IR)
        4/5                                            107 after:   (IR)
        4/11                                           107 after:   (IR)
  14-29  ft.nt  C                                        107 after:   IR
•* 14-30  1/3                                            107 after:   IR
  14-31  1/3                                            107 after:   IR
 '/14-31  2/5                                            average  before:   flow rate
 ^14-31  2/5         measured  value                     calculated  concentration
-^14-34  3/4         10 or,  at most, 30 percent.        10 to 30 percent.
/ 14-50  3/1         References 185, 186

-------
 Page   Par/Line
               Chapter 14 - PM/SOx Errata (continued)

                  Delete                             Insert
   -51  1/3

 J,   1/6
    y
1/7
v/14-127  1/12

  S     1/12

 •3^214  2/11

    S  2/13
  14-226  2/2

         2/9
Reference 185

associations 	in


decreasing	span.
            Thoraic Society
            Ferris2143

            and particulalte

            last sentence of footnote "a1
            for Table 14-52
Reference 184

changes in associations between
decreasing

recorded mortality rates over
the 1963-1972 time span.
P47
    after:  Goldsmith

246
    after:  Speizer

Thoracic Society

containing an epidemiology
evaluation chaptecnby Higgins
and Ferris (1978)<3U7

containing an epidemiology
evaluation chapte?nby Speizer
and Ferris (1978)
-------
             UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                     Research Triangle Park, North Carolina 27711
July 31, 1980
Dear Interested Citizen:

     Our records indicate that you have requested and received a copy of
the first external  review draft of Air Quality Criteria for Particulate
Matter and Sulfur Oxides.  Enclosed is copy of a Federal  Register notice
calling a meeting of the  Clean Air Scientific Advisory Committee on
August 22, 21, 22,  in Arlington, Virginia.   Also enclosed is a package
of materials that was provided to the members of the Committee.

     The enclosed outlines of staff papers  for particulate matter and
sulfur oxides v/ere  developed as means of identifying the  critical  elements
to be considered during the review of National Ambient Air Quality
Standards for particulate matter and sulfur oxides.   It is anticipated
that these outlines will  be used to develop the staff papers which will
be reviewed by the  CASAC  at a subsequent meeting.

     EPA has also developed a list of questions that relate to the staff
paper outlines.  These questions amplify some of the scientific issues
reflected in the outlines themselves.  In addition to the staff paper
outlines and associated questions, also enclosed are three issue statements
which address particle size/health effects, sulfur dioxide/short-term
health effects, and particulate matter/soiling materials  damage.

                                        Sincerely yours,
                                        PROJECT OFFICER FOR PARTICULATE
                                        MATTER AND SULFUR OXIDES

-------
                      U.S.  ENVIRONMENTAL PROTECTION AGENCY
                             SCIENCE ADVISORY BOARD
                    CLEAN AIR SCIENTIFIC ADVISORY COMMITTEE


                      OPEN MEETING — AUGUST 20-22, 1980

     Under Public Law 92-463,  notice is hereby given of a meeting of the Clean
Air Scientific Advisory  Committee  of the Science Advisory Board.  The meeting
will be held August 20-22,  1980,  starting at 9:00 am on August 20 and 8:30 am on
August 21-22 at  the  Twin Bridges Marriott Hotel, 333 Jefferson Davis Highway,
Arlington, Virginia.

     The purpose of  the meeting is to allow the Committee to review and provide
its advice to EPA on the April 1980 first external review draft of EPA's revised
air quality  criteria  document  for sulfur oxides and particulate  matter.   For
this review, the Committee has been divided into two subcommittees, one of which
will review  health effects  related information and the other to review welfare
effects related  information.   The  two subcommittees will jointly  consider air
quality measurements  and related  issues before breaking to consider health and
welfare effects in separate concurrent sessions.

     Copies of the April 1980 draft air quality criteria document may be obtained
by  writing  Ms.  Diane Chappell, Environmental Criteria  and  Assessment Office,
MD-52, EPA,  Research  Triangle  Park,  N.C.  27711, or by calling Ms. Chappell at
(919) 541-2525.

     Additional items on the Agenda  for  the Committee's  review will be outlines
of EPA staff papers for sulfur oxides and particulate matter; a list of questions
concerning topics in  each  of the outlines; and several short issues statements
to  be  discussed  at  the  meeting.   Copies of these documents may be obtained by
writing Mr. John H.  Haines, Office of Air Quality Planning and Standards, MD-12,
EPA, Research  Triangle  Park,  N.C.   27711,  or by  calling Mr.  Haines at  (919)
541-5355.

     The meeting is  open to the  public.  Any member of the public wishing to
obtain information or participate  should contact Terry F. Yosie  (202) 755-0263,
by  close  of  business August 15,  1980.   Members  of  the public wishing to make
formal statements at  the meeting should provide a written summary to Mr. Yosie
by  close of business August 15, 1980.

     The  following individuals have  agreed to serve on the Committee to review
the April 1980 first external review draft of EPA's revised air quality criteria
document for sulfur oxides and particulate matter.

-------
                    Clean Air Scientific Advisory Committee
                   Subcommittee on Health Effects of  SO  /PM
                                                      A
Dr. Mary Amdur
Department of Nutrition & Food Science
Room 16339, MIT
Cambridge, MA  02139

Dr. Judy A. Bean
College of Medicine
Dept. Preventative Medicine
  & Environmental Health
University of Iowa
Iowa City, IA  52242

Dr. Edward Crandall
Division of Pulmonary Disease
Department of Medicine, UCLA
Los Angeles, CA

Dr. Bernard Goldstein
Rutgers University Medical School
Department of Environmental
  & Community Medicine
Piscataway, NJ  08854

Dr. Herschel Griffin
Dean, School of Public Health
Room A625, Crabtree Hall
University of Pittsburgh
Pittsburgh, PA  15261
Dr. Timothy Larsen
Department of Civil Engineering
Mail Stop FC-05
University of Washington
Seattle, WA  98195

Dr. Morton Lippman
Institute of Environmental Medicine
New York University
New York, New York  10016

Dr. Roger 0. McClellan
Director of Inhalation Toxicology
  Research Institute
Lovelace Foundation
P.O. Box 5890
Albuquerque, NM  87115

Dr. Vaun Newill
Exxon Corp.
Research & Environmental
  Health Division
P.O. Box 235
East Millstone, NJ  08873

Dr. Warren Winkelstein
Dean, School of Public Health
140 Earl Warren Hall
University of California at Berkeley
Berkeley, CA  94720
                   Subcommittee on Welfare Effects of SO /PM
                                                        x
Dr. Robert Dorfman
Department of Economics
Harvard University
325 Littauer
Cambridge, MA  02138

Dr. Sheldon Friedlander
School of Engineering
  & Applied Science
UCLA
Los Angeles, CA  90024

Dr. W. Lawrence Gates
Director, Institute for Atmospheric Science
Oregan State University
Corvallis, Or  97331

Dr. Ronald Hall
Rocky Mount Biological Station
Crested Butte, CO  81224

Mr. Harry Hovey
New York Department of Environmental
  Conservation
50 Wolf Road
Albany, NY  12233
   Dr. Andrew McFarland
   Dept. Civil Engineering
   Texas A&M University
   College Station, TX  77843
   Dr. Peter McMurray
   Department of Mechanical Engineering
   University of Minnesota
   111 Church Street, SE
   Minneapolis, MN  55455

   Dr. Donald Pack
   1825 Opalocka Drive
   McLean, VA  22101
   Dr. Michael Treshow
   Dept. of Biology
   University of Utah
   Salt Lake City, UT  84112

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                     The Purpose of a Staff Paper

     Once the criteria document has been reviewed by the public and the
CASAC and the document is nearing its final form, the Agency staff prepares
a paper which evaluates the key studies in the criteria document and
identifies critical elements to be considered in the review of the standard.
For the primary standard, the staff paper identifies those studies that the
staff believes should be used in making the best scientific judgment on the
level at which adverse effects signal a danger to public health in the
sensitive population.  In addition, the paper provides a discussion of the
uncertainties in the medical evidence and of other factors that the staff
believes should be considered in selecting an adequate margin of safety and
a final standard level.  It also evaluates studies that the staff believes
should be used in making the necessary scientific judgments on the level
at which adverse effects signal a danger to public welfare.  The paper
does not present a judgment on what concentration level should be established
for the standard.  The paper does help bridge the gap between the science
contained in the criteria documents and the judgment required of the
Administrator in setting ambient standards.
     The staff paper is reviewed externally by the public and the CASAC.   A
public meeting is held with the CASAC to receive their comments and the
comments of the public.  Once the paper has been reviewed by the CASAC, the
scientific judgments made in the paper form the basis for the staff's
recommendation to the Administrator.
     The attached draft outlines and related materials reflect the staff's
            i
initial steps in developing staff papers for particulate matter and sulfur
oxides.

-------
Enclosures


1.   Outline of the Staff Paper for Particulate  Natter  including  draft  text
     of Sections I-III

2.   Outline of the Staff Paper for Sulfur Oxides  including  draft  text  of
     Sections I-III

3.   List of Questions Relating to the Staff Paper Outlines

4.   Issue Statement on Particle Size/Health Effects

5.   Issue Statement on Sulfur Dioxide/Short-Term  Health  Effects

6.   Issue Statement on Particulate Matter/Soiling and  Materials  Damage.

-------
                                                              JUl 3 1 1930
              Staff Paper Outline for Particulate Matter

I    Purpose
     This section will  state that the purpose of the paper will  be to
evaluate key. studies in EPA document "Air Quality Criteria for Particulate
Matter and Sulfur Oxides" and to identify the critical elements  to be considered
in the possible revision of the primary and secondary particulate matter
National Ambient Air Quality Standards (NAAQS).
II   Background
     The background section will summarize the statutory authority and
legislative guidance provided by the Clean Air Act for setting and revising
NAAQS.  In addition, it will set forth the current primary and secondary
particulate matter standards.
Ill  Approach
     This section will  set forth the approach to be employed and identify
the critical elements to be addressed with regard to the primary and
secondary standards.
IV   Critical Elements  in the Review of the Primary Standard
     A.   Mechanisms of Toxicity
          The section will discuss the relevant chemical and physical  nature
     of ambient particulate matter in the U.S.,  outline the mechanisms by which
     these kinds of particles may initiate pathological and physiological
     responses and discuss the form that such responses may take following
     deposition in the  alveolar, tracheobronchial, and nasopharyngeal  regions
     of the respiratory system.   The discussion will focus on the following:

-------
1.   Relevant physical and chemical characteristics of contemporary
     U.S. participate matter
     a)   Biomodal distribution
     b)   Coarse mode particle characteristics
     c)   Fine mode particle characteristics
     d)   Exceptions; e.g. near strong sources
2.   Mechanisms by which particles may cause adverse effects
     a)   Irritation of tissue at site of deposition; e.g. acids,
          "inert" particles with sorbed gases or vapors
     b)   Systemic toxicity; e.g. toxic elements, carcinogens
     c)   Alteration of host defense systems such as clearance mechanisms,
          immunological  processes; e.g. acids, carbonaceous particles
     d)   Direct or indirect damage leading to altered tissue growth,
          loss of function; e.g. silica
3.   Particle deposition and clearance
     a)   Effect of varied inhalation on regional deposition patterns;
          e.g. nose breathing, mouth breathing, exercise
     b)   Effect of particle physical and chemical composition on
          regional deposition
     c)   Effect of particle physical and chemical composition on
          regional clearance mechanisms
4.   Possible responses to particle deposition by region
     a)   Alveolar
          1)  Physiological responses; e.g. pulmonary dysfunction
          2)  Pathological responses; e.g. morphological changes
              aggravation of existing diseases, increased susceptibility
              to infection

-------
                              3
          b)   Tracheo-bronchial region and conducting airways
               1)  Physiological responses; e.g. increased airway resistance,
                   bronchoconstriction, altered mucocilary clearance
               2)  Pathological responses; e.g. aggravation of existing
                   diseases, increased susceptibility to infection, cancer
          c)   Nasopharyngeal region
               1)  Physiological responses; e.g. nasal resistance to airflow,
                   increased mucous production, odor perception, sneezing
               2)  Pathological responses; e.g. damage to nasal mucosa,
                   throat irritation
B.   Description of Adverse Effects and Evaluation of Critical Effects
     of Concern
     This section of the staff paper will serve to identify and describe
the adverse effects associated with exposure to particles.   It will have
as its basis evidence drawn principally from epidemiology and to a lesser
extent from animal  toxicology, and controlled human exposures.  The
effects to be discussed will include:
     1.   Increased susceptibility to infection
     2.   Damage to lung tissue leading to morphological changes,
          accelerated aging, promotion of chronic disease,  reduced function
     3.   Aggravation of existing respiratory and cardiovascular disease;
          e.g.  asthma, bronchitis, emphysema
     4.   Carcinogenesis/mutagenesis
     5.   Mortality
     6.   Personal  discomfort, symptoms

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                               4
C.    Identification of Most Sensitive Population Groups
     This section will serve to identify those groups within the general
population that are particularly sensitive to exposure to particles.
In doing so, it will draw upon the evidence resulting from epidemiology,
and clinical and toxicological studies.   Our initial  assessment has
identified the following groups:
     1.   Children
     2.   Those with pre-existing respiratory or cardiovascular illness;
          e.g. asthmatics, bronchi tics,  and emphysematics
     3.   The elderly
     4.   Other
D.    Biological Indicators of Adverse Health Effects
     This section will identify and discuss the most  important physiological,
biochemical, morphological, and other biological responses that may
reasonably be considered as indicators of adverse health effects.
Potentially important indicators include:
     1.   Alteration of pulmonary function
     2.   Changes in clearance mechanisms
     3.   Observable tissue damage
     4.   Immunological effects
     5.   Biochemical effects
     6.   Accumulation of exogenous particulate matter in the lungs
E.    Community Studies Relating Level(s) and Duration(s) of Exposure
     to Indicators of Adverse Health Effects
     This section of the paper will primarily focus on epidemiological
Studies with particular emphasis placed on identifying those studies that
provide a reasonable basis for associating adverse health effects with

-------
                                      5
     reported pollution levels  for specified  averaging  times.   In  doing  so,
     the following factors  will  have  to  be  considered:
          1.    Atmospheric  composition (particles  and gases)
          2.    The measurement  method(s)  employed
          3.    Soundness of the methodology employed in the particular study
               examined
V    Factors  to be Considered in Selecting  a  Particulate Pollutant Indicator,
     Margin of Safety,  and  Level  and  Form of  Standards
     The focus of this  discussion will be to  identify those factors that
should be considered when deciding on what  physical  (and/or chemical)  fraction
should be used to indicate  particulate matter pollution, establishing  an
adequate margin of safety,  and  deciding  on  a  level  and  form of the standard.
     A.    Pollutant Indicator(s)
          1.    Indices  used in  epidemiology (TSP,  BSS,  COH)
          2.    Other indices (size specific,  chemical classes)
     B.    Form of Standard
          1.    Selection of averaging time(s)
          2.    Arithmetic vs. geometric  mean—long-term standard
          3.    Expected value (statistical) form(s)  of  standard vs. deterministic
               (current) form(s)

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                                 6
VI   Cri.tical Elements in the Review of the Secondary Standard
     The staff paper will outline important categories of effects on public
welfare associated with participate matter, detailing mechanisms and
available dose/response information.  The discussion will focus on soiling
and materials damage, vegetation damage, and effects on visibility and climate.
     A.   Soiling and Materials Damage
          1.   Description of the adverse effects and evaluation of critical
               effects of concern for standard setting
               This section of the staff paper will serve to identify and
          describe the adverse effects of particulate matter on man-made
          materials.  The effects to be addressed include:
               a)   Increased soiling of household materials
               b)   Decreased property values
               c)   Corrosion or erosion of structural materials
          2.   Mechanisms
               This section will discuss the mechanisms by which particles
          adversely affect man-made materials.  The discussion will focus on
          the following:
               a)   Direct deposition
               b)   Suspension in the air
               c)   Physical erosion
               d)   Corrosion by means of electrolytic, hygroscopic, and/or
                    acid properties of the particles and their ability to
                    absorb corrosive gases
          3.   Studies relating level (s) and duration(s) of exposure to durations
               of effects
               This section will focus on those studies that provide a basis for
          relating observed effects to associated pollution levels and
          averaging times.  The following types of studies will be considered:

-------
                         7
     a)   Household cleaning
     b)   Property value/social  awareness
     c)   Material damage
Vegetation Damage
1.   Description of adverse effects and judgment of critical  effects
     of concern for standard setting
     This section of the staff paper will serve to identify and
describe the adverse effects of particulate matter on vegetation.
Effects of acid deposition are covered under sulfur oxides.  The
effects to be addressed include:
     a)   Reduced growth and yield
     b)   Foliar injury
2.   Mechanisms
     This section will  discuss the mechanisms by which particulate matter
adversely affects vegetation.  The discussion will address the following:
     a)   Deposition on leaf surfaces resulting in
          1)  reduced gas exchange
          2)  increased leaf surface temperature
          3)  reduced photosynthesis
          4}  accumulation of toxic elements in plant tissue
     b)   Deposition of toxic elements on the soil and subsequent  uptake
          by the plant
3.   Studies relating level(s) and duration(s)  of exposure to indicators
     of effects
     This section will  focus on those studies that provide a  basis for
relating observed effects to associated pollution levels and
averaging times.  These will include studies that have examined:

-------
                               8
          a)   Growth and yield
          b)   Photosynthetic rates
C.   Visibility Impairment and Climate
     1.   Description of the adverse effects and judgment of the critical
          effects of concern for standard setting
          This section serves to identify and describe the adverse affects
     of particles on visibility.  The effects to be addressed include:
          a)   Reduced visual range and contrast
             •  1)  Aesthetics
               2)  Safety
          b)   Climatic effects
     2.   Mechanisms
          This section will discuss the mechanism by which particles
     adversely affect visibility.  The discussion will focus on the following:
          a)   Light scattering properties of particles
          b)   Light absorption properties of particles
          c)   Human perception
     3.   Studies relating level(s) and duration(s) of exposure to indicators
          of effects
          This section will focus on those studies that provide a basis for
     relating observed effects to associated pollution levels and
     averaging periods.
          These will include the following types of studies:
          a)   Theoretical predictions
          b)   Direct measurements
          c)   Perception studies
          d)   Willingness to pay studies

-------
                                                                JWL 3 1 1980
         Draft Text for Sections I-I II of the Staff Paper for
                         Participate Matter
I.   PURPOSE
     The purpose of this paper is to evaluate the key studies in the EPA
document "Air Quality Criteria for Particulate Matter and Sulfur Oxides"
and identify the critical  elements to be considered in the possible revision
of the primary and secondary particulate matter National  Ambient Air Quality
Standards (NAAQS).  The paper also identifies critical factors that must
be considered in selecting an adequate margin of safety for the primary
standard.
II.  BACKGROUND
     The Clean Air Act, as Amended in 1977, provides authority and guidance
for setting and revising NAAQS, where appropriate.   Primary standards must
be based on health effects criteria and provide an  adequate margin of safety
to ensure protection of public health.  Economic or related impacts cannot
be considered in the selection of the standard level.   Further guidance
                                   2
provided in the legislative history  of the Clean Air Act indicates that
margins of safety should be defined such that standards are set at "the
maximum permissible ambient air level ...which will protect the health of
any [sensitive] group of the population."  Also, margins  of safety are to
be defined such that the standards will provide "a  reasonable degree of
                                                                      2
protection ... against hazards which research has not yet identified."   In
the final analysis, the primary standard is set by  the EPA Administrator
based on his judgment of the implications of all the health effects evidence,
and the need for an adequate margin of safety.
     Secondary ambient air quality standards must be adequate to protect
the public welfare from any known or anticipated adverse  effects.   Public
welfare is defined as including, but not limited to, effects on soils,

-------
                                 2
water, crops, vegetation, man-made materials, animals, wildlife,  weather,
visibility and climate, damage to and deterioration of property,  and
hazards to transportation, as well as effects on economic values  and
on personal comfort and well being.  In specifying a level  or levels for
secondary standards, the Administrator must base his judgment on  the welfare
effects criteria.
     The current Primary Standard for particulate matter (to protect public
health) is 75 micrograms per cubic meter (yg/m ) annual  geometric mean and
        3
260 yg/m , maximum 24 hour concentration,  not to be exceeded more than once
per year.  The current Secondary Standard  for particulate matter  (to protect
                           o
public welfare) is 150 yg/m , maximum 24 hour concentration, not  to be exceeded
more than once per year.  In addition, the secondary standard specifies
a 60 ug/m , annual geometric mean, guide for the achievement of the 24-hour
standard.
Ill  APPROACH
     The approach used in this paper is to identify the critical  elements
to be considered in the review of the primary and secondary standards.
Particular attention is drawn to those judgments that must be based on the
careful interpretation of incomplete or uncertain evidence.  In such instances,
the paper states our understanding of the  evidence as it relates  to a specific
judgment, sets forth appropriate alternatives that should be considered, and
recommends a course of action.
     The essential elements that are addressed with regard to the Primary
Standards include the following:
     (A)  Mechanisms of toxicity;
     (B)  Description of adverse effects and judgment of critical effects  of
          concern for standard setting;

-------
                                   3
     (C)  Identification of most sensitive population groups;
     (D)  Biological  indicators of adverse health effects;
     (E)  Community studies relating level(s)  and duration(s)  of exposure
          to indicators of adverse health effects;
     (F)  Factors to  be considered in selecting a particulate  pollutant
          indicator,  margin of safety,  and level  and form of standards.
     With respect to  the secondary standard,  the  paper examines  the  effects
of particulate matter on man-made materials,  vegetation,  and visibility.
The elements addressed include:
     (A)  Description of the adverse effects  and  judgment of the critical
          effects of  concern for standard setting;
     (B)  Identification of causal mechanisms;  and
     (C)  Studies relating level(s) and duration(s)  of exposure  to  indicators
          of adverse  effects.

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                             REFERENCES

1.   U.S.  EPA.  Air Quality Criteria for Particulate Matter and Sulfur Oxides,
     External Review Draft Number 1, April  1980.   (Hereinafter referred to  as
     Criteria Document.)  Environmental Criteria  and Assessment Office,
     Office of Research and Development, U.S.  EPA,  Research Triangle Park,
     N.C.

2.   A Legislative History of the Clean Air Act Amendments  of 1970,
     p. 410.

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                                                                   3 1 193Q
                 Staff Paper Outline for Sulfur Oxides

I    Purpose
     This section will state that the purpose of the paper will be to
evaluate key studies in EPA document "Air Quality Criteria for Particulate
Matter and Sulfur Oxides" and to identify the critical elements to be considered
in the possible revision of the primary and secondary sulfur oxides National
Ambient Air Quality Standards (NAAQS).
II   Background
     The background section will summarize the statutory authority and
legislative guidance provided by the Clean Air Act for setting and revising
NAAQS.  In addition, it will set forth  the current primary and secondary
sulfur oxides standards.
Ill  Approach
     This section will set forth the approach to be employed and identify
the critical elements to be addressed with regard to the primary and
secondary standards.
IV   Critical Elements in the Review of the Primary Standard
     A.   Mechanisms of Toxicity
          The section will discuss the  relevant chemical and physical nature
     of sulfur oxides, outline the mechanisms by which they initiate patho-
     logical and physiological  responses and the form that such responses
     may take.  Parallel treatments will, where appropriate, be given to S02
     and sulfuric acid and other sulfates.  The discussion will focus on the
     following:
          1.   Important characteristics of sulfur oxides
               a)   Gaseous S02 is acidic, very soluble in water, can act
                    as a biological oxidant, is transformed into bisulfite,
                    sulfuric acid, and  sulfates

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                          '2
     b)   Sulfuric acid and other sulfates  exist as  hygroscopic
          fine particles, usually acidic
2    Mechanisms by which sulfur oxides  may  cause adverse effects
     a)   S02
          1)  Irritation of tissue at site  of deposition
          2)  Co-carcinogenesis/mutagenesis
          3)  Alteration of host defense systems such as clearance
              mechanisms, immunological processes
     b)   Sulfuric acid and other sulfates
          1)  Irritation of tissue
          2)  Alteration of Mucocillary clearance
          3)  Damage to tissue leading to loss cf function
3,   Absorption and deposition
     a)   S02
          1)  Effect of inhalation patterns on regional deposition;
              e.g. nose breathing, mouth breathing,  exercise
          2)  Potential for adsorption onto particles resulting in
              modified SO- penetration, chemical transformations
          3)  Clearance and fate
     b)   Sulfuric acid and other sulfates—see particle outline
4.   Possible responses to sulfur oxides
     a)   S02 (alone or in combination with particulate matter)
          1)  Physiological responses; e.g. pulmonary dysfunction,
              bronchoconstriction, modified biochemistry, decreased
              mucocillary clearance
          2)  Pathological responses;  e.g.  increases susceptibility
              to  infection, aggravation of exisitng cardio-pulmonary
              disease, cancer

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                                3
          b)   Sulfuric acid and other sulfates
               1)  Physiological responses;  e.g.  bronchoconstriction,
                   decreased mucocilary clearance
               2)  Pathological  responses;  e.g. increased susceptibility
                   to infection, aggravation of bronchitis, other
                   respiratory disease
B.   Description of Adverse Effects and Evaluation of Critical  Effects
     This section of the staff paper will  serve to identify and describe
the adverse effects associated with exposure to sulfur oxides.   It will
have as its basis evidence drawn from animal toxicology, controlled human
and epidemiological studies.  The effects  to be discussed will  include:
     1.   Increased susceptibility to infection       '
     2.   Damage to lung tissue leading to  morphological changes,
          accelerated aging, promotion of  chronic disease, reduced
          function
     3.   Aggravation of existing respiratory and cardiovascular disease;
          e.g.  asthma, emphysema,  and bronchitis
     4.   Carcinogenesis/mutagenesis
     5.   Mortality
     6.   Personal discomfort, symptoms
C.   Identification of Most Sensitive Population  Groups
     This section will serve to identify those groups within the general
population which are particularly sensitive to exposure to sulfur oxides.
In doing so, it will draw upon the evidence resulting from epidemiology,
and clinical and toxicological studies.  Our initial  assessment has
identified the following groups:
     1.   Children
     2.   Those with pre-existing respiratory or  cardiovascular illness;
          e.g.  asthmatics, bronchi tics, and emphysematics

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          3.   The elderly
          4.   Other
     D.   Biological Indicators of Adverse Health Effects
          This section will identify and discuss the physiologic,  biochemical,
     morphological, and other biological responses that may reasonably be
     considered as indicators of adverse health effects.  Potentially important
     indicators include:
          1.   Alteration of pulmonary function
          2.   Changes in clearance mechanisms
          3.   Observable tissue damage
          4.   Immunological effects
          5.   Biochemical effects
     E.   Studies Relating Concentration(s) and Duration(s) of Exposure to
          Indicators of Adverse Health Effects
          This section will primarily focus on observations of human  responses
     with particular emphasis placed on identifying those studies  that provide
     a reasonable basis for associating adverse health effects with reported
     pollution levels for specified averaging times.  Short-term controlled
     human exposure experiments and epidemiological studies examining both
     acute and chronic exposures will be evaluated.
V    Factors to be Considered in Selecting a Sulfur Oxides Pollutant  Indicator,
     Margin of Safety, and Level and Form of Standards
     The focus of this discussion will be to identify those factors that
should be considered when deciding on the most appropriate indicator(s) of
sulfur oxides pollution, establishing an adequate margin of safety, and
deciding on a level and form of the standard.

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                                 5
     A.   Pollutant Indicator(s)
          1.   S02
          2.   Sulfuric acid and/or sulfates
          3.   S®2 ar>d particulate  matter
     B.   Form of Standard
          1.   Selection of averaging time(s)
          2.   Expected value form  of standard vs.  deterministic  (current)
               form(s)
     C.   Level, margin of safety
VI   Critical  Elements in the Review of the Secondary Standard
     The staff paper will outline important effects on public welfare  associated
with sulfur oxides, detailing mechanisms and  available dose  response  information.
The discussion will focus on the  effects of SOp on  vegetation,  materials,  and
comfort, well  being and the effects of sulfuric acid and  other  sulfates  as
mediated through acid deposition.  Effects  of sulfates on visibility  and
climate will be included in the particulate staff paper.
     A.   Effects of S02 on Vegetation
          1.   Description of adverse effects  and evaluation of critical
               effects of concern for standard setting.
               This section will  identify and  describe the adverse
          effects of ambient S0?  on vegetation.  The effects to be
          addressed include:
               a)   Reduced or altered growth, yield, and quality
               b)   Foliar injury
               c)   Ecosystem impacts
          2.   Mechanisms
               This section will  discuss the  mechanisms  by which  SCL  adversely
          affects vegetation.  The  discussion  will  address the  following:
               a)   Deposition on leaf surfaces resulting in

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                         6
          1)  modified gas exchange
          2)  damage to the integrity of plant membranes
          3)  reduced photosynthesis and other effects on normal
              plant biochemistry
          4)  accumulation in plant tissue
     b)   Reduction or elimination of key species, stimulation of
          others
3.   Studies relating level(s) and duration(s) of exposure to
     indicators of effects
     This section will focus on those studies that provide a basis
for relating observed effects to associated pollution levels and
averaging times.  These will include studies that have examined:
     a)   Growth and yield
     b)   Photosynthetic rates
     c)   Modification of the "normal" ecosystem balance
Effects of S02 on Materials
1.   Description of the adverse effects and evaluation of critical
     effects of concern for standard setting
     This section of the staff paper will identify and describe
the adverse effects of S02 on man-made materials.  The principal  effect
to be addressed is corrosion of structural materials.
2.   Mechanisms
     This section will discuss the mechanisms by which sulfur oxides
adversely affect man-made materials.  The discussion will focus
on the following:
     a)   Direct deposition
     b)   Corrosion enhanced by means of the interaction with
          particles, and condensed water

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     3.    Studies relating level(s)  and duration(s)  of exposure to
          indicators of effects
          This section will  focus on those studies that provide a
     basis for relating observed  effects to associated pollution
     levels and averaging times.   These will  include studies  that have
     examined:
          a)   Corrosion of metals,  building  materials
          b)   Damage to household materials; e.g. paint,  fabrics
C.    Effects of S02 on Comfort and Well-Being
     1.    Description of the adverse effects  and judgment  of  the
          critical  effects of concern for standard setting
          This section serves to  identify and describe the adverse
     effects of S02 on comfort and well-being.   The  effects to be
     addressed include:
          a)   Odor perception
          b)   Eye irritation or  other noticeable symptoms judged not
               to be indicators of adverse health effects
    • 2.    Mechanisms
          This section will  discuss  the mechanism by which SOp adversely
     affect personal comfort and  well-being.   The discussion  will focus
     on  the following:
          a)   Interaction with olfactory receptors
          b)   Irritation of eyes, throat, other tissue
     3.    Studies relating level(s)  and duration(s)  of exposure to
          indicators of effects
          This section will  focus on those studies that provide a basis  for
     relating observed effects to associated pollution -levels and
     averaging periods.  These will  include studies  of:

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                                8
          a)   Odor perception
          b)   Dark adaptation of eye
          c)   Interruption of brain rhythms
          d)   Symptoms observed in controlled exposures
D.    Effects of Sulfuric Acid and Other Sulfates Related Acid Deposition
     1.   Description of adverse effects and evaluation of critical
          effects of concern for standard setting
          This section will identify and describe adverse effects of
     acid deposition (dry and wet).  The effects to be addressed are:
          a)   Disruption of aquatic and terrestrial ecosystems
          b)   Damage of vegetation
          c)   Indirect health effects
          d)   Materials damage
     2.   Mechanisms
          This section will discuss the mechanisms by which acid
     deposition adversely affects the environment.  The discussion will
     address the following:
          a)   Deposition on aquatic systems resulting in
               1)  cumulative or short-term surges in acidity impacts on
                   fish, benthic organisms, flora
               2)  Leaching of toxic materials from surrounding water shed
          b)   Deposition on terrestrial systems resulting in
               1)  Cuticular erosion, other direct vegetation effects
               2)  Leaching of nutrients from soils, build up of toxic
                   elements
               3)  Leaching of toxic materials to water supply, build up in
                   edible species
               4)  Corrosion of man-made materials

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3.   Studies relating level(s) and duration(s) of exposure to
     indicators of effects
     This section will  focus on those studies that provide a
basis for relating observed  effects to associated pollution
levels and averaging times.   Particular attention will  be paid to
any reasonable quantitative  relationships between acid  .deposition
and relevant air quality indices such as ambient sulfate concentration,
sulfuric acid levels or other index.   Studies that permit relation
of effects to episodic  deposition, seasonal  effects, and long-term
cumulative impacts will also be highlighted.
Effect of Sulfates on Visibility and Climate
-  See particulate staff paper outline

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                                                                   3 1 1930
           Draft Text for Sections I-III of the Staff Paper for
                              Sulfur Oxides
I.   PURPOSE
     The purpose of this paper is to evaluate the key studies in the  EPA
document "Air Quality Criteria for Particulate Hatter and Sulfur Oxides"
and identify the critical elements to be considered in the possible revision
of the primary and secondary sulfur oxides National Ambient Air Quality
Standards (NAAQS).  The paper also identifies critical factors that must
be considered in selecting an adequate margin of safety for the primary
standard.
II.  BACKGROUND
     The Clean Air Act, as Amended in 1977, provides authority and guidance
for setting and revising NAAQS, where appropriate.   Primary standards  must
be based on health effects criteria and provide an  adequate margin of safety
to ensure protection of public health.  Economic or related impacts cannot
be considered in the selection of the standard level.  Further guidance
                                   2
provided in the legislative history  of the Clean Air Act indicates that
margins of safety should be defined such that standards are set at "the
maximum permissible ambient air level ...which will protect the health of
any [sensitive] group of the population."  Also, margins of safety are to
be defined such that the standards will provide "a  reasonable degree  of
                                                                      2
protection ... against hazards which research has not yet identified."   In
the final analysis, the primary standard is set by  the EPA Administrator
based on his judgment of the implications of all the health effects evidence,
and the need for an adequate margin of safety.
     Secondary ambient air quality standards must be adequate to protect
the public welfare from any known or anticipated adverse effects.  Public
welfare is defined as including, but not limited to, effects on soils,

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                                 2
water, crops, vegetation, man-made materials,  animals,  wildlife, weather,
visibility and climate, damage to and deterioration of  property, and
hazards to transportation, as well as effects  on economic values and
on personal comfort and well  being.   In specifying a level  or levels
for secondary standards, the  Administrator must base his judgment on
the welfare effects criteria.
     The current Primary Standard for sulfur oxides (to protect public
health) is 30 micrograms per  cubic meter (yg/m ) annual arithmetic mean and
365 ug/m , maximum 24 hour concentration, not  to be exceeded more than once
per year.  The current Secondary Standard for  sulfur oxides (to protect
public welfare) is 1300 ug/m  , maximum 3 hour  concentration, not to be exceeded
more than once per year.
Ill  APPROACH
     The approach used in this paper is to identify the critical elements
to be considered in the review of the primary  and secondary standards.
Particular attention is drawn to those judgments that must be based on the
careful interpretation of incomplete or uncertain evidence.  In such instances,
the paper states our understanding of the evidence as it relates to a specific
judgment, sets forth appropriate alternatives  that should be considered,  and
recommends a course of action.
     The essential elements that are addressed with regard to the Primary
Standards include the following:
     (A)  Mechanisms of toxicity;
     (B)  Description of adverse effects and evaluation of critical effects;

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                                   3
     (C)  Identification of most sensitive population groups;
     (D)  Biological indicators of adverse health effects;
     (E)  Studies relating concentration(s)  and duration(s)  of exposure
          to indicators of adverse health effects;
     (F)  Factors to be considered in selecting a sulfur oxide pollutant
          indicator, margin of safety,  and level  and form of standards.
     With respect to the secondary standard, the  paper examines the  effects
of sulfur oxides on man-made materials, vegetation,  and visibility.
The elements addressed include:
     (A)  Effects of S02 on vegetation;
     (B)  Effect of S02 on materials;
     (C)  Effects of 502 on com^orm anc* well-being;
     (D)  Effects of sulfuric acid and other sulfates related  to acid
          deposition; and
     (E)  Effects of sulfates on visibility and climate.

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                              REFERENCES


1.   U.S.  EPA.   Air Quality Criteria for  Participate  Matter and  Sulfur  Oxides
     External  Review Draft Number 1, April  1980.   (Hereinafter referred to as
     Criteria  Document.)   Environmental Criteria  and  Assessment  Office,
     Office of Research and Development,  U.S.  EPA,  Research Triangle  Park,
     N.C.

2.   A Legislative History of the Clean Air Act Amendments  of 1970,
     p. 410.

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                                                                 JUL 3 1 1380
             Questions Relating to the Staff Paper Outlines

     These questions are intended only to amplify some of the issues
identified in the staff paper outlines.   To avoid redundancy, we  have
developed common questions for both particles and sulfur oxides where
appropriate; and we have not restated the questions that are presented  in
conjunction with the three issue statements.
Questions:
1.   Is it reasonable to anticipate that adverse health effects are
     associated with the following:  a)  undifferentiated particulate matter;
     b) specific size fractions of particulate matter; c) chemical  classes
     of particulate matter; d) specific  particulate compounds;  e)  SO-;  f)  sulfuric
     acid; and g) sulfates?
2.   Can the effects of particulate matter be separated from those  of sulfur
     oxides?
3.   What other areas, potentially critical to standard setting,  should  be
     added to the staff paper outlines?
4.   Is an arithmetic mean of long-term  pollutant levels a better indicator
     of exposure and potential effects than a geometric mean?
5.   What specific population subgroups  (e.g. children < 2 yrs. old) are •
     expected to be most sensitive to the effects of particulate  matter  and
     sulfur oxides?
6.   What particle size/composition(s) are most likely responsible  for  the
     following welfare effects:  a) soiling; b) materials damage;  c) vegetation
     damage; and d) effects on visibility and climate?
7.   Can available understanding of ecosystem dynamics be used to provide
     reasonable extrapolations of the ultimate implications for the eco-
     system of SOp damage to several sensitive species?

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                                2
8.   Are the effects  of acid deposition  quantitatively  related  to  air  quality
     levels of any sulfur oxide indicator (SCL,  sulfate,  sulfuric  acid)
     measured at a point or averaged  over a  region?
9.   Are the beneficial  effects reported for sulfur  oxides  on certain
     vegetation grown in sulfur deficient soils  likely  to persist  or does
     a significant possibility of  long-term  disbenefits exists?
10.  What studies provide reasonable  estimates  of the detrimental  effects  of
     particulate related visibility impairment  and climatic changes?

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                     Particle Size/Health Effects

Issue:  How should current information on particle size and health effects
be used in developing a primary NAAQS for particulate matter?
     The scientific community has criticized the concept of total  particulate
standards as not recognizing the effects of varying particle size  and
composition on the health risks associated with particulate matter.   The need
for additional information permitting size and/or composition specific standards
                           1  2
has often been articulated. '   It is incumbent upon the Agency to examine •
all available information on the relationship between particle size  and
potential health effects in this review of criteria and standards.
     In the EPA staff's view, the most relevant information must come from
Human Deposition and Clearance Studies (Chapter 11), Atmospheric Composition
(Chapters 2 through 6), Epidemiology (Chapter 14), Animal  Toxicology (Chapter
12) and occupational epidemiology, including pathology or .autopsy  studies of
exposed individuals.  A synthesis of available information in these  areas is
needed to provide a better basis for decision-making with respect  to particle
size.  Important additional considerations include the availability  of size-
specific air quality data and existing or readily fabricated size-specific
particle monitors.
     An approach to and preliminary evaluation of human deposition and
clearance studies was articulated by EPA staff in 1978.    Briefly,  the distinc-
tion between mouth and nose breathing is important, and in the context of air
quality standards, data representing mouth breathing should be given more
     1.   NAQCAC (1976)
     2.   NAS (1977)
     3.   Miller et al. (1979)

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Page 2

weight.  Size ranges for regional deposition can then be estimated.
Based on material in the current draft of Chapter 11 we see no reason to
alter the preliminary assessment that particles <15 ym reasonably represent
tracheo-bronchial plus alveolar or total thoracic deposition.  Due to
intersubject variability and other factors, it is more difficult to
specify either a median or an "envelope" size range for alveolar deposition.
Based on the draft document, a size cut somewhere between 5 and 10 ym.
appears most appropriate for selection of insoluable particles that may
be deposited in the non-ciliated alveoli.
     Atmospheric composition studies suggest a "natural" particle size cut at
the minimum of the bimodel aerosol mass/volume distribution, or about 2.5 ym.
Fine mode aerosols are more acidic and contain most of the secondary formed
mass, as well as primary carbonaceous material and more toxic trace elements.
Coarse mode particles are dominated by crustal type material and are more
basic.  The relative composition and levels can, however, vary widely with
time and space.
     Although few epidemiological studies have used well defined size-specific
monitors, important clues as to the relative importance to health of certain
size ranges can come from at least two kinds of analyses.  (1) Available
historical  monitoring data can be examined to determine the likely physical
and chemical characteristics of the aerosol present during epidemiological
studies.  For example, the British smoke shade instrument appears most sen-
sitive to small particles and some limited optical and electron microscopy
was done on samples collected in the 1950's and 60's in London.  Comparison
between B.S. and HiVol measurements and information on monitor location can
provide some insights into the relative amounts of fine and coarse mode

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Page 3
particles under varying conditions during the epidemiological  studies.   (2)  The
symptoms and other health indicators observed in various epidemiological  studies
may aid in identifying the kinds of particles which are most likely responsible
for the effects.  For example, it seems unlikely that aggravation of bronchitis
observed in Great Britain could have been caused by particles  larger than 15 ym
that do not generally penetrate beyond the nasal-pharyngeal  region.
     Animal toxicology, when combined with information on the  composition of
ambient aerosol and appropriate differences between man and  animals are con-
sidered, can provide direction for evaluating the importance of various parti.cle
size fractions on health.  Studies of individual components  or mixtures (e.g.  sul-
fates, POM, silica) can suggest mechanisms of'toxicity for various size fractions.
Unfortunately, the scientific literature as represented by the draft criteria
document contains little toxicological information on coarse mode or other non-
sulfate related aerosols.
     In addition, information on current levels of relevant  size fractions of
particulate matter is important.  The available data base on total suspended
particulate (TSP) is large.  It is important to realize that the hi-vol is
itself size selective with a wind, shelter, and location sensitive 50% size
"cut" of about 26-30 ym.  The inhalable particulate (IP) network, providing
hi-vol, IP (< 15 ym), and fine particle (< 2.5 ym) data currently consists
of about 100 sites, most of which have been operating since  October, 1979.
If necessary, it might be possible to provide rough estimates  of the concentration
of intermediate particle size fractions (e.g. 10 ym) using this information.
     Finally, the occupational literature contains a number of .observational
studies of groups exposed to specific forms of particulate matter.  It may
be possible to derive implications for public health in some cases.  For
example, autopsies of groups exposed to high levels of inert particles

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Page 4
(e.g. farmers  and desert dwellers )  may suggest effects (e.g.  pnemoconeosis)
of cumulative exposures to such materials as well  as information on regional
deposition.
     We feel  that a thorough evaluation and synthesis of the literature in
the above areas is needed to support  a decision on the nature of any size
selective standard (including TSP).   Several key issues are highlighted in
the attached questions.  We ask that  you consider these issues  and data
needs in your review and recommendations for the staff paper and provide
any preliminary reactions and suggestions.
     4.  Sherwin et al  (1979)
     5.  Bar Ziv et al  (1974)

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Key Questions

1.   Is the focus on mouth breathing as the most sensitive route of exposure
     for particle inhalation reasonable?
2.   Are the suggested size fractions of interest for regional particle
     deposition appropriate:
          a)  Total thoracic deposition      <15 ym
          b)  Alveolar deposition            <5-10 ym
          c)  Fine particles                 <2.5 ym
3.   Recognizing the similarities and variance in the distribution of particulate
     mass by size and composition (coarse and fine mode) among United States
     urban areas, what health effects might be expected as a result of deposition
     of typical ambient particles in the following regions of the respiratory
     tract?
          a)  head
          b)  tracheo-bronchial region
          c)  alveoli
4.   How can -the available epidemiological  data base be used to derive
     estimates of the adverse health effects of total (<26 ym), inhalable
     (<15 ym), fine (<2.5 ym) or other fractions of particulate matter?

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             SOp/Short Term (1 to 3 hours)  Health Effects       JUL 3 1 J93Q

                                          «






Issue:    Does the available evidence support the" need for a short-term



          (1 to 3 hour)  primary S02 standard?



     Epidemiologists have suggested that the effects observed in many of the



community air pollution  studies may be due  to short-term exposures to peak



concentrations of SOp •   Support for this point of view can be found in the



literature on animal toxicology, and controlled human exposures.



     While caution must  be applied when extrapolating quantitative dose-effect



relationships defined in animal studies to  humans, they do provide insight as



to mechanisms and the range of health effects that may occur at a given exposure



level and duration.  As  stated in the criteria document, such studies suggest



that exposure concentration is more important than duration in producing



adverse effects.  Changes in pulmonary function and mucous flow have been



reported when dogs were  exposed to 1 ppm of SOp alone for 1 - 1.5 hour


        • 2 3
duration. '



     Animal studies also indicate that over 99% of SOp is removed by the



nose during quiescent breathing at rest, but that obligatory mouth breathing



at increased ventilation substantially increases penetration in the respiratory



system (66% penetration).   At rest, human  studies suggest that nasal removal



of SOp is similar to that found in the animal studies.  Although no objective



measurements have been made of SOp removal  in humans during "mouth breathing,



forced mouth breathing and increased ventilation through exercise or other



means substantially increases measurable pulmonary effects, implying deeper
1.   Lawther (1978)



2.   Islam et al., (1972)



3.   Hersch et al., (1975)



4.   Frank et al., (1969)

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penetration.    ihese results suggest that negative findings in animal  and human
studies at high S02 concentrations probably only reflect the efficiency of nasal
removal, and may not be relevant when assessing health risks associated with
mouth breathing, exercise and otherwise increased ventilation.
     Controlled human exposure studies provide an important means of
ascertaining dose-effect relations for short-term exposures.  They are,
however, limited to the detection of the onset of relatively transient
changes in pulmonary or cardiac function, physiological and biochemical
parameters and related subjective symptoms.  Such studies do provide insight
as to mechanisms of toxicity.  As stated above, the effects of SO,, on
pulmonary function are more pronounced during periods of exercise and  during
mouth breathing when ventilation rates increase.  In addition to pulmonary
function, changes in biochemistry, immunology, and symptomatic effects have
also been observed in humans exposed to SO- alone.
     With respect to levels and duration, changes in pulmonary function have
been reported when humans have been exposed to 0.5 - 2 ppm S0? for a 1 - 3 hours
         fi 7 8
duration. ' '   Of particular interest are those studies which examine subjects
under exercise and during mouth breathing.  The latter is significant  since
approximately one-third of the population is composed of mouth breathers.
     Finally, to put these findings into perspective, it should be recognized
that peak hourly values of up to 2 ppm have been observed at over 60 ambient
monitoring sites within the United States that were in compliance with the
5.   Lawther et al., (1975)
6.   Bates and Hazucha (1973)
7.   Speizer and Frank (1966)
8.   Jaeger et al., (1979)

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                                    3
current 24 hour standard of 365  pg/m .   The  24-hour  values  at  these  sites
range from 101-300 yg/m  while the  peak  one-hour average  ranged  from 1000-
5240 yg/m3.9
Questions:
     1.   Should the changes in  pulmonary function and  symptoms  reported when
          humans are exposed to  peak S02 levels  (0.5 to 2 ppm)  be  viewed as
          adverse health effects?
     2.   How should the apparent  increased  penetration from exercise and
          mouth breathing be considered  when establishing the  level  and
          duration of the standard?
                                 •
     3.   Do available studies suggest a need to investigate effects occuring
          for exposures of less  than 1 to 3  hours?
     4.   Do the reported effects  from short-term studies in healthy adults
          suggest more significant  effects in sensitive groups  such  asthmatics,
          bronchitics, and emphysematics?
9.   Environmental  Protection Agency (1979)

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                                                              JUL 3 i 1988




            Participate Matter/Soiling and Materials Damage





Issue:  Should the secondary standard be expressed in terms of total



suspended particulate matter (as measured by hi-volume samplers) to protect



against materials damage and soiling or should a size cut be specified?



     The literature cited in the draft criteria document clearly indicates



that the deposition of airborne particles adversely affects aesthetics  and



man-made objects through soiling and contributes either directly or in



conjunction with other pollutants to structural damage by means of corrosion



or erosion.  While the adverse effects are well documented, little or no



information is available on the size and chemical  composition of the particles



that contribute to such effects.     '



     In the absence of precise data on particle size and composition, one



must surmise that the reported effects emanate from a broad spectrum of particles



from both the fine and coarse modes.  For example, soiling can result from



fine mode particles such as organics as well as coarse mode dust, the latter



being particularly important to the household sector.  Fine particles exhibit



corrosive effects due to their electrolytic, hygroscopic, and/or acidic properties,



and their ability to sorb corrosive gases.  Larger, coarse mode particles will



erode materials under high wind conditions.



     In view of the spectrum of particles contributing to materials damage



and soiling, a standard expressed in terms of total suspended particulates



appears appropriate.  The alternative of basing a soiling related secondary



standard on a smaller size fraction tied to health effects might not provide



for the control of larger coarse mode particles, thus subjecting the public



welfare to their deleterious effects.

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                                     2




     With respect to establishing the level  of the secondary standard, the



situation is less clear.   While the data indicates that reductions in total



suspended parti dilates will  nave a beneficial  effect in reducing economic



costs of particulate pollution, the dose-response relationships are not defined.



     As a result, we seek your views as tc whether the scientific literature



provides an adequate basis for the establishment of a secondary standard



for total susoended particulates and ycur reccrrjr.endaticns as to wnat



information and  analysis  appear most useful  for specifying levels known or



anticipated tc cause adverse effects.



Key Questions



1.   What is the most appropriate pollutant indicator for soiling/materials



     carriage caused by suspended particulate .ratter?



2.   Does any strong basis exist for separating



     effects of  coarse and fine -ode particles?



2.   Is sol 1ingAmateria!s damage generally ~cre closely related to Icnc-ter^



     (yearly) or short-tern (24. hour) exposures?



4.   To what extent can the following kinds of studies be used to assess the



     known or anticipated adverse effects associated with parti:ulate related



     soiling/materials damage:



     a)   Surveys of household soiling costs;



     b)   Property value  studies;



     0'   Willingness to  pay studies;



     c)   Studies of "Social Awareness" of air pollution.; and



     e}   Laboratory and  field rriaterials damage studies?

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