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      Figure 6-4 shows monthly overall  average  concentrations for
formaldehyde,  acetaldehyde,  and acetone at  all  sites  in the 1990 UATMP.
Figures 6-5, 6-6,  and 6-7 display the monthly arithmetic means by site for the
formaldehyde data.   Since there is considerable scatter in the total data set,
three plots are needed to minimize overlap  between individual sites.  The
overall monthly means are shown on all  three plots (Figures 6-5, 6-6, and 6-7)
and are displayed using the box symbol.
      The formaldehyde plots show a considerable variability between sites;
however, some patterns do emerge.  For instance, most sites show a local
minimum concentration in May, and a local  maximum concentration in October.
In most cases these are absolute minima and maxima as well.  Most sites also
tend to reach another local minima in September.
      Since one pair of sites is located in the same city, some additional
comments about Figure 6-7 may be made.  The two Washington, DC  sites, W1DC and
W2DC, track rather closely throughout the year, although  some months show some
separation.  Thus, a measure of verification is provided  for this city.
      Figures 6-8, 6-9, and 6-10 display the monthly arithmetic means  by site
for the acetaldehyde data.  The acetaldehyde plots show a  bit more  variability
between sites than the formaldehyde data.  However, there  is a  tendency for
local minima in May  and local maxima in August.  As with  formaldehyde,  these
are usually absolute minima  and maxima as well.  Other  local maxima  and minima
occur more  frequently  and  sporadically than with the formaldehyde data.  The
two Washington  sites  track closely from month-to-month.
       Figures 6-11,  6-12,  and  6-13 display  the  monthly  arithmetic means by
site for the acetone data.   Acetone  maxima  and  minima  usually occur in
different  months.  One difference  between acetone  and  the other two compounds
is  for  a local,  and  usually  absolute,  maximum  concentration  in  October.  The
local  maximum  found  in March  for  acetone is  similar  to  the local maxima found
in  May  for acetaldehyde.
       The  trends  generalized from monthly plots of arithmetic means may or may
not be representative of a typical year.  However,  it  does appear  that the
time  of year  as described by month plays a  fairly  important  role in
 influencing carbonyl  concentrations,  as  shown  by the differences in the
monthly means  in the plots.   Also, carbonyl  concentrations appear  to be site
 specific as demonstrated by the differences between  sites in the plots.
 :aroonvi 1990 Final Heoort                        6-14

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6.5  INTERCARBONYL CORRELATIONS
      Table 6-8 lists the product-moment correlations and the covariances
between the mean concentrations of formaldehyde, acetaldehyde, and acetone for
each site and over all sites for Case 1.  Differences between Case 1 and
Case 2 were minimal, so only Case 1 results are shown.  Formaldehyde and
acetaldehyde appear more highly correlated than either formaldehyde and
acetone or acetaldehyde and acetone.
      Figure 6-14 shows the correlation between formaldehyde  and acetaldehyde
concentrations, while Figure 6-15 shows the correlation between formaldehyde
and acetone concentrations.  Figure 6-16 shows the acetaldehyde-acetone
concentration correlation.  The correlation coefficient for the formaldehyde-
acetaldehyde concentration data is 0.8026, whereas for the formaldehyde-
acetone data the correlation coefficient is 0.6154.   The correlation
coefficienct for acetaldehyde-acetone is 0.6262.  The line drawn in each  graph
locates the regression line.  The data  used for Figures 6-14  and 6-15  include
each analysis,  i.e.,  for Cartridge  1 and Cartridge 2, for each  sampling
episode in which the  paired data was available.
6.6  PRECISION  AND  PERCENT DIFFERENCES
      Tables 6-9, 6-10, and 6-11 list the  summary statistics  by  site  and  over
all sites  for the absolute percent  difference  of the  cartridge  concentration
data.  Since the absolute  percent difference was calculated only when  both
cartridge  concentrations were  above the ADL, only results from  Case  1  are
shown.  The absolute  percent DIF,  a measure of variability,  is  defined as the
absolute value  of the difference between the two cartridge concentrations,
divided by the  arithmetic  average  of the two cartridge concentrations, times
100:
       Absolute percent DIF =   ABS  (X2  - X1)/((X2 +  X^/2) x  100
       where:      ABS indicates the absolute value;
                  X1  = concentration from  cartridge 1; and
                  X2  = concentration from  cartridge 2.
       Precision was estimated  from absolute percent  difference  of  duplicate
sample analysis.  For formaldehyde  the  absolute percent difference  averaged
11.5;  for  acetaldehyde  13.4;  and  for acetone  15.1.
       The  maximum of any  of the percent differences  derived  from the  pairs of
cartridge  concentrations  was  50% or less  for  six  formaldehyde sites,  five
acetaldehyde  sites, and  five  acetone  sites.   The maximum percent difference
:52
-------
   Table  6-8.   Correlations and  Covariances between the Mean  Concentrations
               of Formaldehyde,  Acetaldehyde,  and Acetone:   Case  1
Site
Code
All
BRLA
C4IL
CANJ
H1TX
ORLF
PEFL
PNTX
SAIL
TLOH
W10C
W1KS
W2DC
Forma Idehyde
Versus
Acetaldehvde
N
306
15
28
30
16
23
35
24
28
17
20
30
30
COR
0.82638
0.91412
0.90786
0.93666
0.55268
0.98519
0.77771
0.58494
0.60528
0.64832
0.87136
0.78469
0.70878

2
3
1
2
0
11
0
1
0
0
1
1

ccv
.83654
.16649
.54879
.20095
.07880
.46774
.88420
.15936
.31060
.47822
.55719
.04340
.31203

0.
0.
0.
0.
0.
0.
3.
3.
0.
0
2
j

rormaldenyde
Versus
icetone
CGR
66230
79995
23300
80866
15675
.95185
.88159
.57568
.22698
.42833
.71960
.55066
.63309

2.
3.
* 0.
2.
* 0.
13.
3.
0.
* 0.
* 0.
]_
D.
2.
COV
80683
05467
85293
02693
01942
01520
74795
65079
19817
41705
27112
95689
C2454

0.
0.
0.
0.
0.
0
0
0
0
0
0
T
J
0
Acetaldehyde
Versus
Acetone
COR
.63277
87969
,26732 *
.81455
.30547 *
.93896
.83395
.39901 *
.20666 *
.42720 *
.67158
.52521
.81927
COV
0.96399
2.45119
0.34504
0.86696
0.02188
3.59100
0.67919
0.30536
0.04476
0.19560
0.35190
0.33775
0.93115
'Indicates correlation not significant at the 957. confidence level.
 :52-04S/carUOSf
 Cjroonvi 1990 Final Reoort
6-26

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  Site
           Table 6-9.   Summary of Formaldehyde  Precision Statistics'
Variable
  Absolute  Percent Difference,  ppbv
Mean     Std  Dev    Minimum   Maximum
BRLA
C4IL
CANJ
H1TX
ORFL
PEFL
PNTX
SAIL
TLOH
W1DC
W1KS
W2DC
Formaldehyde
Formaldehyde
Formaldehyde
Formaldehyde
Formaldehyde
Formaldehyde
Formaldehyde
Formaldehyde
Formaldehyde
Formaldehyde
Formaldehyde
Formaldehyde
30
28
30
26
27
41
29
29
22
30
30
30
9.086
8.334
4.584
8.499
5.669
8.295
30.746
15.991
12.011
14.491
4.570
16.576
12.033
7.333
5.268
7.714
8.662
9.331
33.318
32.788
14.372
19.549
4.673
19.848
0.152
0.409
0.000
0.608
0.426
0.000
0.530
0.138
0.289
0.000
0.137
0.900
55.200
31.606
24.633
34.043
46.099
43.956
115.542
150.127
66.035
70.185
21.074
69.457
 In Case 1, mean concentrations are calculated  using detectable cartridge
 concentrations  only.
:32-045/can.208f

^jrDonvi 1990 Final fieoorr
                          6-30

-------
          Table 6-10.  Summary of  Acetaldehyde Precision  Statistics5
                                     Absolute Percent Difference, ppbv
 Site       Variable        N       Mean     Std Dev   Minimum   Maximum
ALL
BRLA
C4IL
CANJ
H1TX
ORFL
PEFL
PNTX
SAIL
TLOH
W1DC
W1KS
W2DC
Acetaldehyde
Acetaldehyde
Acetaldehyde
Acetaldehyde
Acetaldehyde
Acetaldehyde
Acetaldehyde
Acetaldehyde
Acetaldehyde
Acetaldehyde
Acetaldehyde
Acetaldehyde
Acetaldehyde
319
21
28
30
21
24
36
29
27
14
30
29
30
13.437
12.031
11.260
6.603
14.961
15.040
11.867
12.148
11.957
30.348
15.797
10.864
17.635
16.683
12.049
15.539
5.009
18.307
24.044
10.313
9.319
12.285
28.454
18.520
12.231
24.101
0.000
0.000
0.000
0.344
0.000
0.743
0.000
0.000
0.000
1.905
0.000
0.374
0.000
101.967
42.105
54.035
18.911
61.538
101.967
48.819
38.095
38.760
75.918
62.774
61.176
84.569
In Case  1,  mean concentrations  are calculated using  detectable cartridqe
concentrations only.
:52-045/can.208f
:i.'Donyi 1990 Final Reoort                         c  -3 i

-------
            Table 6-11.  Summary  of Acetone Precision  Statistics2
                                    .Absolute  Percent Difference,  ppbv
 Site      Variable         N      Mean     Std  Dev   Minimum    Maximum
ALL
BRLA
C4IL
CANJ
H1TX
ORFL
PEFL
PNTX
SAIL
TLOH
W1DC
W1KS
W2DC
Acetone
Acetone
Acetone
Acetone
Acetone
Acetone
Acetone
Acetone
Acetone
Acetone
Acetone
Acetone
Acetone
298
15
28
30
16
18
33
20
28
22
30
29
29
15.133
8.903
13.793
9.058
23.399
21.043
13.453
11.393
11.368
12.236
21.966
13.056
23.036
16.469
9.503
16.788
8.755
15.585
20.031
16.152
10.915
11.869
13.908
17.461
18.194
22.876
0.000
0.289
0.000
0.000
1.575
4.831
0.000
1.690
0.000
0.468
1.000
0.000
0.000
99.728
36.190
69.630
40.528
48.837
93.878
70.487
43.478
35.514
68.599
65.185
55.556
99.728
In Case 1, mean  concentrations are calculated using detectable cartridge
concentrations only.
:52-045/can.20Sf
Cjroonyl 1990 Final fleoort                         6 - 3 2

-------
was larger than 100% for only two formaldehyde sites  and  two  acetaldehyde
sites.  The largest percent difference for any of the acetone sites  was  less
than 100 percent.  These results show good precision,  and speak well  for the
sampling and analytical procedures.  These results  are in agreement  with the
1989 results, indicating consistency between the two  years in terms  of
precision.
6.7  AUDIT SAMPLES
      Table 6-12 displays the results from the audit  samples  for formaldehyde,
acetaldehyde, and acetone.  Figures 6-17  and 6-18 display bar charts for the
percent differences between the  spiked and reported samples for formaldehyde,
acetaldehyde, and acetone.  An overall negative  bias  is evident for all  three
compounds  in both Table 6-12 and Figures  6-17 and 6-18.  This overall negative
bias-was over four times as much for acetaldehyde as  it was for formaldehyde.
The bias for acetone was about the  same  as it was for formaldehyde.
      There was  an evident trend in the  audit results.  The audit results are
illustrated graphically in two separate  graphs.   Figure 6-17  presents audit
data  analyzed prior to  instrument  system maintenance.  After  the analytical
system maintenance, the audit results  improved as  indicated in Figure 6-18.
The audit  results over  the course  of the program indicate that the analytical
system was  in control  and the analytical  results valid.
 :52-045/can 2CSf
 :.srBcmvi 1990 Final Reoon                        6-33

-------
Table 6-12.  Spiked Quality Assurance Cartridge Results
               for 1990 UATMP Monitoring
Sample
Number
A4
A7
A 12
A15
A16
B7
Bll
B14
1 C7
C14
C16
 C20
i D3
! D7
D15
D17
D19
A3
A9
A17
B3
B9
B15
B16
Formaldehyde j Acetaldehvde Acetnr, i
Spiked
(ppbv)
1.01
1.01
1.01
1.01
1.01
2.01
2.01
2.01
2.97
2.97
2.97
2.97
4.02
4.02
4.02
0
0
1.01
1.01
1.01
0
2.01
2.01
2.01
Reported I
(ppbv) 1
1.13
0.87
0.85
0.85
0.80
1.79
1.82
1.75
2.60
2.52
Percent j Spiked
Difference i (ppbv)
Reported I Percent Spiked 1 Reported 1 Percent
(ppbv) 1 Difference i (ppbv) 1 (ppbv) Difference I
10.62 1 0 1 -999 ! 0.00 1 3.02 I 2.55 1 -18.43 1
-16.09
-18.82
-18.82
-26.25 |
-12.29
-10.44
-14.86
-14.23
-17.86
3.04 I 2.30
1.02 j -999 1 100.00 1 3.02 i 4.04 i 25.25 1
1.02
1.02
1.02
2.00
2.00
2.00
2.00
1.27 i 19.69 j 3.02 | 2.35 i
0.72 j -41.67
0.94
1.73
1.99
1.62
1.53
2.00 | 1.57
-8.51
-15.61
-0.50
-23.46
3.02 j 2.54
3.02
4.02
4.02
4.02
-30.72 i 3.02
-27.39 | 3.02
2.00 2.00 1 0.00 1 3.02
2.54
3.84
4.64
3.69
2.71
2.78 1
-28.51
-18.90
-18.90
-4.69
13.36
-8.94
-11.44
-8.63
2.47 -22.27
2.69 i -10.41 i 2.00 i 1.58 1 -26.58 1 3.02 1 -999 100.00 i
4.20
3.56
3.83
-999
-999
0.96
0.88
0.94
-999
L.72
2.04
1.89
C3 ; 2.97 j 2.64
CIO
CIS
C24
D9
D16
D20
AS
All
A18
A19
BIO
B17
B20
C9
C12
! C13
2.97
2.97
0
4.02
4.02
0
1.01
1.01
1.01
1.01
2.01
2.01
2.01
2.97
2.97
4.29
-12.92
-4.96
0.00
0.00
-5.21
-14.77
-7.45
0.00
-16.86
1.47
-6.35
0
3.96
3.96
3.96
3.96
0
1.02
-999 I . 0.00 | 2.00 I 2.06 i 2.91
3.78 ) -4.76 2.00 1 1.48 -35.14
3.92
3.66
4.03
-999
0.88
1.02 | 0.84
2.00 i 1.50
-1.02
-8.20
1.74
0.00
-15.91
-21.43
-33.33
2.00 i 2.06 1 2.91
2.00 j 1.89 -5.82
2.00 1.75 i -14.29
2.00
2.00
2.00
3.02
3.02
0
4.02
4.02
4.02
1.42 | -40.85
2.04 | 1.96
1.60
3.01
2.61
-999
2.62
4.89
3.56
4.02 ! 4.26
-12.50 1 0 -999 1 0.00 1 3.02 ! 1.62
2.94 | -1.02 | 2.00 1 2.00 1 0.00 1 3.02 1 2.35
2.92
-999
4.00
2.77
-999
0.95
1.02
1.02
0.97
1.90
2.03
2.01
3.08
2.92
-1.71
0.00
-0.50
-45.13
0.00
-6.32
0.98
0.98
-4.12
-5.79
0.99
0.00
3.57
j -1.71
2.00
0
3.96
3.96
3.96
1.02
1.02
1.02
1.02
2.00
2.00
2.00
2.00
2.00
2.97 1 2.87 1 -3.48 i 2.00
1.79
-999
3.66
3.40
3.76
-11.73
0.00
-8.20
-16.47
-5.32
1.00 i -2.00
1.31
1.17
1.14
2.20
2.19
22.14
12.82
10.53
9.09
1 8.68
2.08 1 3.85
2.14 | 6.54
2.14 I 6.54
-25.00
-0.33
-15.71
0.00
-53.44
17.79
-12.92
5.63 |
-15.27 j
-28.51
3.02 | 2.69 I -12.27
0 | -999
2.00 i 1.71
2.00
2.00
3.02
3.02
0
0
4.02
0
0
3.02
1.55
1.75
2.90
3. 14
-999
-999
3.97
-999
-999
3.34
3.02 ! 3.06
0.00
-16.96
-29.03
-14.29
-4.14
3.82
0.00
0.00
-1.26
0.00
0.00
9.58
i 1.31
2.03 i 1.48 i 3.02 1 3.05 i 0.98
                               6-34

-------
         Table 6-12.  Spiked Quality Assurance Cartridge Results
                         for 1990 UATMP Monitoring
Sample
Number
CIS
C23
018
D23
A10.
A13
A14
A20
A24
r^ A
B4
B8
B12
B13
Big
B19
C4
C8
/"^ 1 1
Cll
C17
C19
^\ it
D4
T*\O
O8
DIO
Dll
PV 1 ^
U12
D13
D14
111 .a
 Formaldehyde i Acetaidehvde Acetone
Spiked
(ppbv)
2.97
0
0
0
1.01
1.01
1.01
1.01
0
0
2.01
2.01
2.01
2.01
2.01
2.97
2.97
2.97
2.97
2.97
4.02
4.02
4.02
4.02
4.02
4.02
4.02
i -*i
Reported
(ppbv)
2.90
-999
-999
-999
0.99
0.92
0.97
1.00
-999
-999
2.01
Percent ! Spiked
Difference 1 (ppbv)
-2.41
0.00
0.00
0.00
-2.02
-9.78
-4.12
-1.00
0.00
0.00
0.00
2.08 | 3.37
1.96
2.11
1.94
2.93
3.05
2.96
2.95
2.97
3.97
4.03
4.06
3.76
3.92
4.09
3.87
 i
-2.55
4.74
-3.61
-1.37
2.62
-0.34
-0.68
0.00
-1.26
0.25
0.99
-6.91
-2.55
1.71
-3.88
2.00
0
3.96
0
1.02
1.02
1.02
1.02
0
2.00
2.00
2.00
2.00
2.00
2.00
0
2.00
2.00
2.00
2.00
0
3.96
3.96
3.96
3.96
3.96
3.96
Reported
(ppbv)
2.11
-999
4.12
-999
1.16
0.96
1.09
0.97
-999
2.03
2.03
1 Percent Spiked 1 Reported
Difference I (ppbv) i (ppbv)
1 5.21
t Percent
Difference
1 0 | -999 1 0.00
0.00 | 0 i -999
3.88 i 2.00
0.00
12.07
-6.25
6.42
1.92
0 I -999
3.02 i 3.04
3.02
3.02
-5.15 i 0
2.96
2.90
-999
0.00 i 0 ( -999
1.48 i 4.02 4.04
1.48 i 4.02 1 3.96
2.10 | 4.76 1 4.02 1 4.02
2.10 | 4.76
2.07
1.91
-999
1.92
2.00
2.13
2.01
-999
4.08
4.00
3.38
-4.71-
0.00
-4.17
0.00
6.10
0.50
0.00
2.94
1.00
4.02 1 3.97
0
0
3.02
3.02
3.02
0
0
2.00
2.00
2.00
-999
-999
2.99
2.89
3.04
-999
-999
1.94
1.98
1.97
4.00 i 1.00 1 2.00 1 1.92
3.95
4.01
3.95
-0.25 1 2.00 1 1.94 1
1.25 I 2.00 | 2.02
-0.25 i 2.00
0.00
-4.17
0.00
0.66
-2.03
-4.14
0.00
0.00
0.50
-1.52 i
0.00
-1.26
0.00
0.00
-1.00
-4.50
0.66
0.00
0.00
-3.09
-1. 01
-1.52
-4.17
-3.09
0 00 I
1.96 i -2.04 i
^!Z!! 	 * -1.20 .4.32!
'-999" indicates concentration below analytical detection limit (ADL).
                                           6-35

-------
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Quality Assurance
1990UA
                                    6-36

-------






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-------
                                7.0  CONCLUSIONS


      Based on the discussion in the data analysis section, the following
conclusions were reached:


      1)    The mean concentration data for all three compounds are more
            nearly lognormally than normally distributed.

      2)    Mean concentrations varied from month-to-month for all three
            compounds, but the variation of acetone concentrations was
            somewhat different than the variation of formaldehyde or
            acetaldehyde concentrations.  This variation did  not appear to  be
            represented by regular cycles.  In addition, the  monthly
            concentrations also appeared to be site specific, particularly  for
            acetaldehyde.  Analysis of variance results  indicated that both
            site and month played a role in influencing  mean  concentrations
            for all three compounds; however, other unknown factors appear  to
            have an even greater influence.

      3)    Formaldehyde concentrations were fairly highly correlated with
            acetaldehyde concentrations at all sites.  However, neither
            formaldehyde nor acetaldehyde concentrations were well correlated
            with acetone concentrations.  In fact, the correlation
            coefficients of formaldehyde and acetaldehyde concentrations  with
            acetone concentrations were non-significant  at some sites.

      4)    Absolute percent differences and audit samples biases revealed
            that the sampling and analytical methodology employed is
            repeatable and valid.

      5)    The use of a denuder in the sample collection  system was
            determined to remove >  99.9% of the ozone.   Therefore,  the
            formaldehyde results reported here are not negatively biased  by
            the ozone present in ambient air.
 :=2O45/can.20Sf
 "araonyl 1990 Final Recoct
7-1

-------
                                 8.0 REFERENCES


 1.     McAllister,  Robert A.,  Emily G. Bowles, Judith DeGarmo, Joann Rice,
       Kobert  F.  Jongleux,  Raymond G. Merrill, Jr. and Joan Bursey,  "1990 Urban
       Air Toxics Monitoring Program" Draft Final Report prepared for
       Neil  J   Berg,  Jr., U.S.  Environmental  Protection Agency, Research
       Iriangle Park,  NC,  Radian Corporation DCN: 91-262-045-55, Research
       Triangle Park,  NC, June  1991.

 2.     McAllister,  Robert A.,  Phyllis L.  O'Hara, Dave-Paul Dayton,
       John  E.  Robbins,  Robert  F. Jongleux, Raymond G. Merrill, Jr.,
       Joann Rice,  and Joan T.  Bursey, "1990  Nonmethane Organic Compound and
       ihree-Hour Air Toxics Monitoring Program," Final Report, prepared for
       Neil  J   Berg,  Jr.; U.S.  Environmental  Protection Agency, Research
       hnangle Park,  NC, Radian Corporation  DCN: 91-262-045-04, Research
       Triangle Park,  NC, January 16, 1991.

 3-     Merrill,  Jr.,  Raymond G.,  Dave-Paul  Dayton, Phyllis L. O'Hara, and
       K.  F. Jongleux,  "Effects of Ozone  Removal ont he Measurement of Carbonyl
       Compounds  in Ambient Air," 84th Annual  Meeting  and  Exhibition.  Air  &
       Waste Management  Association, Vancouver,  British Columbia, Canada,


 4.     SAS Institute  Inc., "SAS Procedures  Guide, Release 6.03 Edition "
       Cary, NC (1988).

 5.     Aitchinson, J.  and J.  A.  C.  Brown,  "The Lognormal  Distribution,"
       Cambridge  at the  University Press  (1957).
252-045/can.20af
Carbonyi 1990 Final Renort                        g _ 1

-------
                        Appendix A -  Site  Information from AIRS
:52-045/can.203f
:arnonyt 1990 Final Reoort

-------
                                   Table A-l

                1990 Urban Air Toxics Monitoring  Program Sites
        EPA                                   Radian               AIRS
      Region  	City	Site Code	Number


         II          Camden,  NJ                 CANJ             34-007-0003

        III         Washington,  DC            W1DC             11-001-0025
                    Washington,  DC            W2DC             11-001-0039

         IV          Orlando,  FL                ORFL             12-095-2002
                    Pensacola,  FL             PEFL             12-033-0004

         V          Chicago,  IL                C4IL             17-031-0060
                    Sauget,  IL                 SAIL             17-163-1010
                    Toledo,  OH                 TLOH             39-095-0081

         VI          Houston,  TX                H1TX             48-201-1034
                    Baton Rouge, LA           BRLA             22-033-0006
                    Port Neches, TX           PNTX             48-245-4007

        VII         Wichita,  KS                W1KS             20-173-0010
:62-045/can 208f
C^roonvi 1990 Final Report

-------
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-------
         Appendix  B - Summary  Statistics  for Cases  1  and 2  for All Sites
:S2-045/can.208f
Zaroonvi 1990 Final Reoort

-------
    TABLE B-l.  SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                            AND STANDARD DEVIATION FOR CASE I1

                                     Baton Rouge, LA (BRLA)
  Sample
   Data
  10-Jul-90
  16-Jul-90
  22-Jul-90
  28-Jul-90
03-Aug-90
09-Aug-90
15-Aug-90
21-Aug-90
27-Aug-90
02-Sep-90
08-Sep-90
 14-Sep-90
20-Sep-90
26-Sep-90
02-Oct-90
 08-Oct-90
 14-Oct-90
 20-Oct-90
 26-Oct-90
Ql-Nov-90
07-NOV-90
19-Nov-90
Ol-Dec-90
13-Dec-90
2S-Dec-90
 06-Jan-91
 18-Jan-91
 30-Jan-9I
 12-Feb-91
23-Feb-91
Week
 Day
 M
 Sn
 St
 F
 Th
 _W_
 _L
 _M_
 Sa
 St
 F
 Th
 W
 T
 M
 Sn
 St
 F
 Th
 W
 M
 St
Th
 T
 Sn
_F_
_W
T
 T
       1409
       1417
       1427
       :433D
       1445
       1447
       1453
       476D
       1493
       497D
       1512
       1534
       1556
      1562D
      1584D
       1594
     Average
)
iber
P7
)3
M
17
>1
11
18
VI
"8
>5
0
2
4
6
19
7
7
ID
5
7
3
D
3
D
2
4
6
D
D
4
ge
Formaldehyde
Mean2
Cone
(ppb)
5.26
4.34
2.50
6.74
4.33
6.13
6.59
6.83
3.60
2.62
2.74
3.72
5.25
10.98
5.43
3.84
6.54
5.63
4.90
6.16
6.51
6.79
4.24
3.72
6.10
2.18
2.80
2.50
6.91
3.95
4.99
Absolute^
Percent
Diff
11.41
3.23
55.20
12.76
18.73
2.12
0.15
24.01
21.67
8.80
32.54
8.06
1.72
0.82
2.21
0.78
0.31
7.46
0.41
0.81
1.84
4.27
4.49
6.45
0.98
16.51
1.43
16.43
2.17
4.82
9.09
Std*
Dev
(Pfb)
0.42
0.10
0.98
0.61
0.57
0.09
0.01
1.16
0.55
0.16
0.63
0.21
0.06
0.06
0.08
0.02
0.01
0.30
0.01
0.04
0.08
0.21
0.13
0.17
0.04
0.25
0.03
0.29
0.11
0.13
0.25
Acetaidehyde
Mean1
Cone
(ppb)
1.03
2.08
-
-
-
2.28
2.30
1.18
-
-
-
-
1.40
7.24
2.22
1.43
3.92
3.20
3.70
3.54
3.18|
Absolute3
Percent
Diff
7.77
29.40
*
*
*
14.91
4.79
*
*
*
*
*
15.05
2.21
2.70
5.59
0.51
7.50
8.93
0.00
2.52
1 Std>
Dev
(ppb)
0.06
0.43
*
*
*
0.24
0.08
*
*
*
*
*
0.15
0.11
0.04
0.06
0.01
0.17
0.23
0.00
Acetone
Mean2
Cone
(ppb)
-
-
-
-
-
3.38
_
Absolute-
Percent
Diff
*
*
*
*
*
I 5.92
1 *
_ *
- 1 *
-
-
-
-
7.20
0.82
-
3.46
4.35
2.69
4.88
*
*
*
*
4.03
14.63
*
0.29
8.98
1 StdJ
Dev
(ppb)
*
*
*
*
*
0.14
*
*

*
*
*
*
0.21
0.08
*
0.01
0.28
1.12 | 0.02
5.95 | 0.21
0.06 ) 3.45 1 1.16 1 0.03
3.96 | 24.75 | 0.69 | 2.95 1 15.59
1.33
-
2.26
1.15
1.30
1.30
3.67
1.74
2.52
42.11 ! 0.40
* 1 *
5.76 |
25.33 |
10.77
33.85
2.46
5.75 1
12.03
0.09
0.21
0.10
0.31
0.06
0.07
0.17
1.05
-
1.36
1.24
1.70
1.60
4.06
1.53
2.86
36.19

8.12 |
9.68 1
1.18
18.75
2.71
1.97 i
8.52
0.33
0.27
*
0.08
0.08
0.01
0.21
0.08
0.02
0.13
In Case 1, mean concentration, are calculated using detected rube concentrations only.
-" indicate, concentration below analytical detection limit (ADL).
"* indicate, insufficient data to perform calculation.

-------
 TABLE B-2.  SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                        AND STANDARD DEVIATION FOR CASE 2'
                                  Baton Rouge, LA (BRLA)
Sample
Date
10-Jul-90
16-Jul-90
22-Jul-90
28-JuI-90
03-Aug-90
Week
Day
T
M
Sn
St
F
09-Aug-90 I Th
15-Aug-90 | W
21-Aug-90 i T
1 27-Aug-90 I M
02-Sep-90 | Sn
08-Sep-90
l4-Sep-90
St
F
20-Sep-90 | Th
26-Sep-90
02-Oct-90
08-Oct-90
14-Oct-90
20-Oct-90
26-Oct-90
Ol-Nov-90
07-Nov-90
j 19-Nov-90
W
T
M
Sn
St
F
Th
W
M
Ol-Dec-90 I St
13-Dec-90
25-Dec-90
06-Jan-91
18-Jan-91
30-Jan-91
12-Feb-91
23-Feb-91
Th
T
Sn
F
1 w
F
T

ID
Number
1297
1303
1304
1317
1321
Formaldehyde | Acetaldehyde
Mean
Cone
(ppb)
5.26
4.34
2.50
6.74
4.33
1331 | 6.13
1338
1347
Absolute
Percent
Diff
11.41
Std
Dev
(ppb)
0.42
3.23 1 0.10
55.20 0.98
12.76 0.61
18.73 0.57
2.12 0.09
Mean
Cone
(ppb)
1.03
2.08
0.18
0.18
0.18
2.28
Absolute
Percent
Diff
Std
Dev
(ppb)
7.77 | 0.06
29.40 |
0.00
0.00
0.00
14.91
0.43
0.00
0.00
0.00
0.24
6.59 | 0.15 0.01 j 2.30 4.79 I 0.08
6.83 I 24.01 1.16) 0.68 147.061 0.71
Acetone |
Mean
Cone
(ppb)
0.18
0.18
0.18
0.18
0.18
3.38
0.18
Absolute
Percent
Diff
0.00
Std
Dev
(ppb)
0.00
0.00 | 0.00
0.00 1 0.00
0.00
0.00
0.00 0.00
5.92 0.14
0.00 | 0.00
0.18 | 0.00 | 0.00
1358 j 3.60 1 21.67 0.55 | 0.18 1 0.00 | 0.00 0.18 | 0.00 I 0.00 i
1365
1380
1382
1394
1396
1409
1417
1427
1433D
1445
1447
1453
2.62 I 8.80 0.16
2.74
3.72
5.25
10.98
32.54 1 0.63
8.06 1 0.21
1.72 I 0.06
0.82
5.43 | 2.21
3.84
6.54
5.63
4.90
6.16
6.51
0.78
0.31
7.46
0.06
0.08
0.02
0.01
0.30
0.41 0.01
0.18 | 0.00 1 0.00 | 0.18 | 0.00 1 0.00 |
0.18
0.18
1.40
7.24
2.22
1.43
3.92
3.20
3.70
0.00 ! 0.00 1 0.18 1 0.00 | 0.00
0.00 I 0.00
15.05 | 0.15
2.21 I 0.11
2.70
5.59
0.51
7.50
8.93
0.04
0.06
0.01
0.17
0.23
0.81 0.04 1 3.54 | 0.00 | 0.00
1.84 0.08 I 3.18
0.18 j 0.00 ! 0.00
0.18
7.20
0.82
0.18
3.46
4.35
2.69
I 4.88
0.00
0.00
4.03 ! 0.21
14.63
0.00
0.29
8.98
1.12
0.08
0.00
0.01
0.28
0.02
5.95 1 0.21
2.52 | 0.06 i 3.45 | 1.16 1 0.03 I
1476D I 6.79 1 4.27 0.21 | 3.96 | 24.75 I 0.69 i 2.95 1 15.59 I 0.33 i
1493
1497D
1512
1534
1556
4.24 | 4.49 0.13 1 1.33 | 42.11 | 0.40
3.72
6.10
2.18
2.80
1562D | 2.50
1584D
1594
Average
6.91
3.95
4.99
6.45 0.17
0.98 0.04
16.51
0.18
2.26
0.25! 1-15
1.43 | 0.03 | 1.30
 16.43 | 0.29
2.17
4.82
9.09
0.11
0.13
0.25
1.30
3.67
1.74
1.88
0.00 | 0.00
5.76
25.33
10.77
33.85
2.46
5.75
13.32
0.09
0.21
0.10
0.31
0.06
0.07
0.14
1.05
0.18
1.36
1.24
1.70
1.60
4.06
1.53
1.61
36.19 | 0.27
0.00
8.12
9.68
1.18
18.75
2.71
1.97
4.54
0.00 |
0.08 i
0.08
0.01
0.21
0.08
0.02
0.07
In Case 2, mean concentrations are calculated using half the analytical detection limit (AOL) for tube concentrations below ADL.

-------
   TABLE B-3. SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                            AND STANDARD DEVIATION FOR CASE I1

                                          Chicago, IL (C4DL)
Sample
Date
24-Mar-90
05-Apr-90
17-Apr-90
29-Apr-90
ll-May-90
23-May-90
04-Jun-90
16-Jun-90
28-Jun-90
22-Jul-90
03-Aug-90
l6-Aug-90
27-Aug-90
08-Sep-90
20-Sep-90
02-Oct-90
14-0ct-90
26-Oct-90
08-Nov-90
Week
Day
St
Th
T
Sn
F
W
M
St
Th
Sn
F
Th
M
St
Th
T
Sn
F
Th
19-Nov-90 | M
Ol-Dec-90
13-Dec-91
28-Dec-90
04-Jan-91
18-Jan-91
30-Jan-91
ll-Feb-91
23-Feb-91
St
Th
F
F
F
W
M
St

ID
Number
1175
1196
1207
1219
1228
1244
1261
1268
Formaldehyde
Mean*
Cone
(ppb)
3.84
4.05
3.89
2.87
3.38
3.05
2.45
7.50
Absolute3
Percent
Diff
6.25
12.11
9.01
0.70
6.81
Stds
Dev
(ppb)
0.17
0.35
0.25
0.01
0.16
20.33 0.44
0.41
0.01
5.87 0.31
1285 5.79 | 5.53 0.23
1314
1324
1343
1352
1375
1391
1407
1421
1436
1452
1475
1483
7.60
13.64
3.29 0.18
16.28 1.57
5.18 | 4.83
7.43
5.25
4.92
5.09
4.59
4.34
4.01
3.88
15.88
4.95
19.11
0.18
Acetaidehyde
Mean1
Cone
(ppb)
2.59
1.82
1.68
1.43
1.76
1.50
0.93
\bsoiute3
Percent
Diff
1.93
11.57
17.31
54.04
0.57
Std3
Dev
(ppb)
0.04
0.15
0.21
0.54
0.01
2.01 0.02
3.24 0.02
Acetone
Mean2
Cone
(ppb)
2.92
2.99
2.00
2.03
2.03
4.98
3.56
3.40 i 8.24 0.20 3.49
2.47 | 6.90 0.12
3.00
4.83
2.34 0.05
33.54 1.15
1.85 | 10.30
0.83 | 2.16
0.18
0.66
6.88 | 0.25
8.71
3.46
1.50
13.68
0.28
0.11
0.04
0.37
3.86 31.61 0.86
1 1504 | 3.48 5.17 0.13
1525
1537D
1547
1557
1577
1593
Average
3.23
4.62
3.78
4,81
1.24
1.95
3.70
16.02
3.43 | 5.55
3.18
4.75
2.52
8.33
!
0.03
0.06
0.10
0.54
0.13
0.06
0.30
2.25
2.27
1.86
2.33
2.31
1.94
2.07
1.89
11.11
2.67
11.04
4.85
7.73
0.00
4.12
15.98
0.13
0.17
0.04
0.18
0.06
0.13
0.00
0.06
0.23
3.53
3.85
3.37
3.76
3.13
2.03
7.82
6.96
2.96
3.53
3.94
2.47
52.52 0.70 1.98
1.40 44.29
1.58
2.08
1.40
2.03
1.32
1.00
2.04
0.63
0.96
2.15
0.44 i 1.00
0.01
0.01
0.02
1.23
1.24
1.32
1.48 0.02 i 1.77
0.76
3.02
11.26
0.01
0.02
0.17
0.94
0.83
2.91
Absolute3
Percent
Diff
7.89
26.09
2.51
69.63
18.27
5.03
Std3
Dev
(ppb)
0.16
0.55
0.04
1.00
0.26
0.18
2.25 i 0.06
23.50 0.58 1
10.50
24.71
64.09
13.58
8.00
9.38
14.07
4.60
0.34
12.20
0.00
0.26
0.67
1.53
0.36
0.18
0.13
0.78
0.23
0.01
0.30
0.00
15.01 | 0.26 1
12.12 0.17
3.02 0.02
8.13
0.00
19.70
2.83
6.38
2.41
13.79
0.07
0.00 j
0.18 |
0.04
0.04
0.01
0.29
1  In Case 1, mean concentrations are calculated using detected tube concentrations only.
:  "-" indicates concentration below analytical detection limit (ADL).
5  "*" indicates insufficient data to perform calculation.

-------
   TABLE B-4.  SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                          AND STANDARD DEVIATION FOR CASE 2'
                                       Chicago, IL (C4IL)

Sample
Date
24-Mar-90
05-Apr-90
17-Apr-90
29-Apr-90
ll-May-90
23-Mav-90
04-Jun-90
16-Jun-90
28-Jun-90
22-Jul-90
03-Aug-90
16-Aug-90
27-Aug-90
08-Sep-90
20-Sep-90
02-Oct-90
14-Oct-90
26-Oct-90
08-Nov-90
l9-Nov-90
Ol-Dec-90
13-Dec-91
28-Dec-90
04-Jan-91
18-Jan-91
30-Jan-91
ll-Feb-91
23-Fefa-91


Week
Day
St
Th
T
Sn
F
W
M
St
Th
Sn
F
Th
M
St
Th
T
Sn
F
Th
| M
St
Th
| F
F
F
1 w
M
St


ID
Number
1175
1196
1207
1219
1228
1244
1261
1268
1285
1314
1324
1343
1352
1375
1391
1407
1421
1436
1452
1475
i 1483
1 1504
1525
1537D
1547
1557
1577
| 1593
Average
Fo
Mean
Cone
(ppb)
3.84
4.05
3.89
2.87
3.38
3.05
2.45
7.50
5.79
7.60
13.64
5.18
7.43
5.25
4.92
5.09
4.59
4.34
4.01
3.88
3.86
3.48
i 3.23
4.62
3.78
| 4.81
3.43
3.18
4.75
rmaideavc
Absolute
Percent
Diff
6.25
12.11
9.01
0.70
6.81
20.33
0.41
5.87 |
5.53
3.29
16.28
4.83
15.88
4.95
19.11
6.88
8.71
3.46
1.50
13.68
31.61
1 5.17
1.24
1.95
3.70
16.02
5.55
2.52
8.33
e
Std
Dev
(ppb)
0.17
0.35
0.25
0.01
0.16
0.44
0.01 !
0.31 j
0.23 |
0.18
1.57
0.18
0.83
0.18
0.66
0.25
0.28
0.11
0.04
0.37
0.86
0.13
0.03
0.06
0.10
0.54
0.13
0.06
0.30
A<
Mean
Cone
(ppb)
2.59
1.82
1.68
1.43
1.76
1.50
0.93
3.40
2.47
3.00
4.83
1.85
2.16
2.25
2.27
1.86
2.33
2.31
1.94
2.07
1.89
I 1.40
1.58
2.08
1.40
2.03
1.32
1.00
2.04
;etaidehvd
Absolute
Percent
Diff
1.93
11.57
17.31
54.04
0.57
2.01
3.24
8.24
6.90
2.34
33.54
10.30
11.11
2.67
11.04
4.85
7.73
0.00
4.12
15.98
52.52
44.29
0.63
0.96
2.15
1.48
0.76
3.02
11.26
e I
Std
Dev
(ppb)
0.04 I
0.15
0.21
0.54
0.01
0.02
0.02
0.20
0.12
0.05
1.15
0.13
0.17
0.04
0.18
0.06
0.13
0.00
0.06
0.23
0.70
0.44
0.01
I 0.01
0.02
0.02
0.01
0.02
0.17

Mean
Cone
(ppb)
2.92
2.99
2.00
2.03
2.03
4.98 1
3.56
3.49
3.53
3.85J
3.37
3.76
3.13
2.03
7.82
| 6.96
1 2.96
3.53
3.94
2.47
1.98
1 1.00
| 1.23
! 1.24
| 1.32
1 1.77
| 0.94
1 0.83
2.91
Acetone
Absolute
Percent
Diff
7.89
26.09
2.51 |
69.63 |
18.27
5.03
2.25
23.50
10.50
24.71
64.09
13.58
8.00
9.38
14.07
4.60
0.34
12.20
0.00
15.01
12.12
3.02
8.13
0.00
19.70
2.83
6.38
2.41
13.79
1
Std
Dev 1
(ppb)
0.16 I
0.55
0.04
1.00
0.26
0.18
0.06
0.58 1
0.26
0.67 |
1.53
0.36
0.18
0.13
0.78
0.23
0.01
0.30J
0.00
0.26
0.17
1 0.02
0.07 1
| 0.00
0.18
0.04
1 0.04 1
0.01
0.29
' In Case 2. mean concentrations arc calculated using half the analytical detection limit (ADL) for tube concentrations below ADL.

-------
  TABLE B-5.  SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                          AND STANDARD DEVIATION FOR CASE I1
                                        Camden, NJ (CANJ)
Sample
Date
12-Mar-90
24-Mar-90
05-Apr-90
17-Apr-90
29-Apr-90
Week
Day
M
St
Th
T
Sn
ll-May-9o| F
23-May-90
04-Jun-90
16-Jun-90
28-Jun-90
10-Jul-90
22-Jul-90
03-Aug-90
15-Aug-90
27-Aug-90
08-Sep-90
20-Sep-90
02-Oct-90
14-Oct-90
26-Oct-90
07-Nov-90
W
M

ID
Number
1166
1178
1190D
1200
1215
1232
1242
1260
Formaldehyde
Mean2
Cone
(ppb)
8.56
3.41
4.34
4.94
3.74
2.36
3.08
Absolute3
Percent
Diff
9.35
24.63
0.00
3.85
5.35
10.17
0.65
Std3
Dev
(ppb)
0.57
0.59
0.00
0.13
0.14
0.17
0.01
2.86 2.80 0.06
St | 1270 5.29
Th | 1282
T
Sn
F
W
M
St
Th
T
Sn
F
W
l9-Nov-90 M
Ol-Dec-90
13-Dec-90
25-Dec-90
06-Jan-91
18-Jan-91
30-Jan-91
ll-Feb-91
23-Feb-91
St
Th
T
Sn
F
W
M
St
1288
1310
1319
1337
1361
1369
1384
1403
1422
9.48
8.85
9.12
9.81
8.30
7.07
3.16
3.24
4.03
5.05
1.13 0.04
0.84
0.57
3.18
15.49
2.05
4.53
4.75
6.79
0.00
0.20
1438 | 2.35 | 2.55
1463D
1472
Acetaldehyde Acetone
Mean2
Cone
(ppb)
4.59
1.87
1.98
2.53
1.75
0.93
1.27
1.24
1.94
0.06 3.87
0.04 3.86
0.21
1.07
0.12
0.23
0.11
0.16
0.00
0.01
0.04
3.63 I 0.83 0.02
3.36
3.96
4.17
3.18
1.14
2.27
1.89
2.91
1.44
2.11
3.15 1.90 I 0.04 1.81
1494 4.82 0.21
1505 5.08
1513D | 3.30
1531
1548
1570D
1586D
1597
Average
4.36
2.52
5.25
2.82
2.99
4.90
4.93
5.16
0.01
0.18
0.12
3.44 0.11
9.52 | 0.17
5.91
0.36
6.37
4.58
0.22
0.01
0.13
0.16
2.60
2.80
1.87
2.26
Absolute3
Percent
Diff
8.71
0.54
5.05
6.73
Std3
Dev
(ppb)
Mean2
Cone
(ppb)
0.28 | 4.19
0.01
0.07
0.12
18.91 | 0.23
17.20 I 0.11
5.53 1 0.05
9.68 1 0.08
2.36
2.24
2.38
1.49
1.40
2.01
1.13
8.79 ! 0.12 1.63
1.55 | 0.04 | 3.97
17.38 I 0.47
8.93
7.33
6.48
2.83
9.69
14.57
1.06
0.34
0.21
0.21
0.19
0.06
0.08
0.23
0.01
2.96
Absolute3
Percent
Diff
10.75
22.88
11.61
0.42
10.10
17.14
23.88
11.56
6.13
11.08
3.72
2.56 I 5.47
5.31
4.44
2.98
2.01
3.21
2.41
0.01 | 1.40
2.78 j 0.03 | 1.79
2.84 0.04 1 2.04
6.63 0.08 1 1.19
5.01 0.09
1.79
4.83
3.10
1.36 5.88
2.45 | 2.86
1.36
1.48
2.34
2.94
8.11
6.60
0.04
0.06
1.78
1.90
1.27
0.05 1 1.75
0.06
0.05
0.03
0.08
0.11
1.27
2.40
1.05
1.33
2.26
40.53
2.03
13.11
6.97
19.31
0.42
2.86
0.00
7.37
5.04
7.32
7.37
10.28
2.29
4.72
0.42
0.96
6.02
9.06
Std3
Dev
(ppb)
0.32
0.38
0.18
0.01
0.11
0.17
0.34
0.09
0.07
0.31
0.08
0.10 |
1.52
0.06
0.28
0.10
0.44
0.01
0.03
0.00
0.11 I
0.04
0.09
0.10
0.09
0.03
0.04
0.01
0.01
0.06
0.17
In Case 1, mean concentrations are calculated using detected tube concentrations only.
"-" indicates concentration below analytical detection limit (ADL).
"*" indicates insufficient data to perform calculation.

-------
 TABLE B-6.  SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                       AND STANDARD DEVIATION FOR CASE 21
                                   Camden, NJ (CANJ)
Sample
Dale
12-Mar-90
24-Mar-90
05-Apr-90
17-Apr-90
29-Apr-90
ll-May-90
23-May-90
04-Jun-90
16-Jun-90
28-Jun-90
10-Jul-90
22-Jui-90
03-Aug-90
15-Aug-90
27-Aug-90
08-Sep-90
20-Sep-90
02-Oct-90
14-Oct-90
26-Oct-90
07-Nov-90
19-Nov-90
Ol-Dec-90
13-Dec-90
25-Dec-90
06-Jan-91
18-Jan-91
30-Jan-91
ll-Feb-91
23-Feb-91
Week
Day
M
St
Th
T
Sn
F
W
M
St
Th
T
Sn
F
W
M
St
Th
T
So
F
W
M
St
Th
T
So
F
W
M
St

ID
Number
1166
1178
1190D
1200
1215
1232
1242
1260
1270
1282
1288
1310
1319
1337
1361
1369
1384
1403
1422
1438
1463D
1472
1494
1505
1513D
1531
1548
1570D
1586D
1597
Average
Formaldehyde
Mean
Cone
fa*)
8.56
3.41
4.34
4.94
3.74
2.36
3.08
2.86
Absolute
Percent
Diff
9.35
24.63
0.00
3.85
5.35
10.17
0.65
Std
Dev
(ppb)
0.57
0.59
0.00
0.13
0.14
0.17
0.01
2.80 | 0.06
5.29 1 1.13
Acetaldebyde
Mean
Cone
(ppb)
4.59
1.87
1.98
2.53
1.75
0.93
1.27
1.24
0.04 1.94
9.48 J 0.84 | 0.06
8.85 | 0.57
9.12J 3.18
9.81
8.30
7.07
3.16
3.24
4.03
5.05
2.35
3.63
3.15
4.82
5.08
3.30
4.36
2.52
5.25
2.82
2.99
4.90
15.49
2.05
4.53
4.75
6.79
0.00
0.20
2.55
0.83
0.04
0.21
1.07
0.12
0.23
0.11
0.16
0.00
0.01
0.04
3.87
3.86
3.36
3.96
4.17
3.18
1.14
2.27
1.89
2.91
1.44
0.02 2.11
1.90 0.04 1.81
0.21
4.93
5.16
3.44
9.52
5.91
0.36
6.37
4.58
0.01 2.60
0.18
0.12
0.11
0.17
0.22
0.01
0.13
0.16
Absolute
Percent
Diff
8.71
0.54
5.05
6.73
18.91
17.20
5.53
9.68
8.79
1.55
17.38
8.93
7.33
6.48
2.83
9.69
14.57
1.06
0.34
2.78
2.84
6.63
5.01
2.80 1.79
1.87
2.26
1.36
2.45
1.36
1.48
2.34
4.83
3.10
5.88
2.86
2.94
8.11
6.60
Std
Dev
(ppb)
0.28
0.01
0.07
0.12
0.23
0.11
Acetone
Mam
Cane
(ppb)
4.19
2.36
2.24
2.38
1.49
1.40
0.05 | 2.01
0.08
0.12
0.04
0.47
0.21
0.21
0.19
0.06
0.08
0.23
0.01
0.01
0.03
0.04
0.08
0.09
0.04
0.06
0.05
0.06
0.05
0.03
0.08
0.11
1.13
1.63
3.97
2.96
2.56
5.31
4.44
2.98
2.01
3.21
2.41
1.40
1.79
2.04
1.19
1.78
1.90
1.27
1.75
1.27
2.40
1.05
1.33
2.26
Absolute
Percent
Diff
10.75
22.88
11.61
0.42
10.10
17.14
23.88
11.56
6.13
11.08
3.72
5.47
40.53
2.03
13.11
6.97
19.31
0.42
2.86
0.00
7.37
5.04
7.32
7.37
10.28
2.29
4.72
0.42
0.96
6.02
9.06
Std
Dev
(ppb)
0.32
0.38
0.18
0.01
0.11
0.17
0.34
0.09
0.07 |
0.31
0.08
0.10
1.52
0.06
0.28
0.10
0.44
0.01
0.03
0.00 1
0.11 1
0.04 |
0.09 |
0.10
0.09
0.03
0.04
0.01
0.01
0.06
0.17
In Case 2, mean concentration* are calculated using half the analytical detection limit (ADL) for tube concentrations below ADL.

-------
   TABLE B-7. SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                            AND STANDARD DEVIATION FOR CASE I1
                                         Houston, TX (H1TX)
Sample
Dale
12-Mar-90
24-Mar-90
05-Apr-90
17-Apr-90
ll-May-90
23-May-90
04-Jun-90
16-Jun-90
22-Jul-90
03-Aug-90
15-Aug-90
27-Aug-90
08-Sep-90
20-Sep-90
02-Oct-90
14-Oct-90
26-Oct-90
07-Nov-90
19-Nov-90
Ol-Dec-90
13-Dec-90
25-Dec-90
06-Jan-91
18-Jan-91
30-Jan-91
ll-Feb-91
23-Feb-91
Week
Day
M
St
Th

ID
Number
1170D
1184
1187
T | 1210
F
W
M
St
1230D
1245
1255
Formaldehyde
Mean2
Cone
(ppb)
0.65
1.41
1.12
1.80
0.63
Absolute3
Percent
Diff
Std3
Dev
(ppb)
89.23 1 0.41
34.04
7.14
12.22
0.34
0.06
Acetaldehyde
Mean3
Cone
(ppb)
0.43
0.64
-
0.16) 0.65
4.80 | 0.02
2.32 | 17.71
0.29
0.37
1.01
1.94 7.75 | 0.11 j 0.79
1267 | 1.62 0.62
Sn | 1308
F
W
M
St
Th
T
Sn
F
W
M
St
1323
1334
1357
1373D
1390
1413
1426
1435
1451
1474
1488
1.08
1.15
1.91
1.42
1.03
1.25
1.45
1.55
2.01
1.31
1.14
1.65
0.01 | 0.46
11.11 0.08 I 0.38
2.62
4.72
15.49
1.94
6.40
18.69
6.45
1.99
3.83
0.02
0.06
0.16
0.01
0.06
0.19
0.07
0.03
0.04
12.28 | 0.10
0.61 | 0.01
Th 1502 2.08 1 19.23 I 0.28
T
Sn
F
W
M
St
1519
1539D
1544
1558
1574
1598
Average
0.38
1.21
0.80
-
0.68
1.01
1.29
1.21
0.80
0.93
0.68
0.57
1.33 2.26 I 0.02 I 0.87
1.52 I 5.26 I 0.06
1.52
0.56
2.55
1.39
1.46
4.62
12.61
0.05
0.05
5.11 1 0.09
1.44 I 0.01
11.49
0.10
0.44
0.42
0.38
1.15
0.70
0.73
Absolute3
Percent
Diff
11.76
61.42
*
61.54
100.00
34.83
25.32
41.76
0.00
100.00
11.57
1.26
*
0.00
12.94
11.67
29.75
7.50
8.60
2.94
17.54
1.16
4.55
7.23
10.53
2.62
0.00
22.66
Std3
Dev
(ppb)
0.04
0.28
*
0.28
0.00
0.25
0.14
0.13
Acetone
Mean2
Cone
(ppb)
0.62
0.88
0.86
0.74
0.80
1.16
0.58
Absolute3
Percent
Diff
100.00
37.71
48.84
31.29
2.50
37.23
15.65
Std
Dev
(ppb)
0.00
0.23
0.30
0.16
0.01
0.30
0.06 I
0.45 | 29.21 1 0.09
0.00 | 0.43
0.00
0.10
0.01
*
0.00
0.09
0.11
0.25
0.04
0.06
0.01
0.07
-
0.64
0.66
-
-
1.24
0.82
0.59
0.74
0.42
-
100.00 | 0.00 |
*
1.57
33.33
*
*
19.35
6.13
44.07
10.81
16.87
*
* 1
0.01 1
0.16
*
*
0.17
0.04
0.18
0.06
0.05
*
0.38 | 100.00 | 0.00
0.01 I -
0.01 | -
0.02
0.03
0.02
0.00
0.08
-
0.39
0.83
0.43
0.68
* *
*
*
100.00
35.15
4.65
38.72
+
* 1
0.00 1
0.21
0.01
0.10
'  In Case 1, mean concentrations are calculated using detected tube concentrations only.
2  "-" indicates concentration below analytical detection limit (AOL).
'- "*" indicates insufficient data to perform calculation.

-------
 TABLE B-8. SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                       AND STANDARD DEVIATION FOR CASE 21

                                   Houston, TX (H1TX)

Sample
Date
12-Mar-90
24-Mar-90
05-Apr-90
17-Apr-90
ll-May-90
23-May-90
04-Jun-90
16-Jun-90
22-Jui-90
03-Aug-90
15-Aug-90
27-Aug-90
08-Sep-90
20-Sep-90
02-0ct-90
14-Oct-90
26-Oct-90
07-Nov-90
19-Nov-90
Ol-Dec-90
13-Dec-90
25-Dec-90
06-Jan-91
18-Jan-91
30-Jan-91
ll-Feb-91
23-Feb-91


Week
Day
M
St
Th
T
F
W
M
St
Sn
F
W
M
St
Th
T
Sn
F
W
M
St
Th
T
1 Sn
F
W
M
1 St


ID
Number
1170D
1184
1187
1210
1230D
1245
1255
1267
1308
1323
1334
1357
1373D
1390
1413
1426
1435
1451
1474
1488
1502
1519
1539D
1544
1558
1574
1598
Average
Fo
Mean
Cone
(ppb)
0.65
1.41
1.12
1.80
0.63 |
2.32
1.94
1.62
1.08
1.15
1.91
1.42
1.03
1.25
1.45
1.55
2.01
1.31
1.14
1.65
2.08
1.33
I 1.52
1.52
0.56
| 2.55
1.39
1.46
nnaidehyc
Absolute
Percent
Diff
89.23 |
34.04
7.14
12.22
4.80
17.71
7.751
0.62 |
11.11
2.62
4.72
15.49
1.94
6.40
18.69
6.45
1.99
3.83
12.28
0.61
19.23
1 2.26
| 5.26
4.62
12.61
5.11
1.44
11.49
e
Std
Dev
(ppb)
0.41
0.34
0.06
0.16
0.02
0.29
0.11 |
0.01
0.08
0.02
0.06
0.16
0.01
0.06
0.19
0.07
0.03
0.04
0.10
| 0.01
| 0.28
0.02
0.06
0.05
0.05
0.09
0.01
0.10
A(
Mean
Cone
(ppb)
0.43
0.64
0.18
0.65
0.28
1.01
0.79
0.46
0.38
0.28
1.21
0.80
0.18
0.68
1.01
1.29
1.21
0.80
0.93
0.68
0.57
0.87
| 0.44
0.42
0.38
1.15
0.70
0.68
xtaldehyd
Absolute
Percent
Diff
11.76
61.42
0.00 |
61.54 |
69.09
34.83
25.32 !
41.76 I
0.00 I
71.43 I
11.57 I
1.26
0.00
0.00
12.94
11.67
29.75
7.50
8.60
2.94
17.54
1 1.16
4.55
7.23
10.53
2.62
0.00
18.78
e 1
Std
Dev
(ppb)
0.04 |
0.28
0.00
0.28
0.13
0.25
0.14
0.13
0.00
0.14
0.10
0.01
0.00
0.00
0.09
0.11
0.25
0.04
0.06
0.01
0.07
0.01
0.01
| 0.02
| 0.03
| 0.02
0.00
0.08

Mean
Cone
(ppb)
0.40
0.88
0.86 |
0.74
0.80
1.16
0.58
0.45
0.31
0.18
0.64
0.66
0.18
0.18
1.24
0.82
0.59
0.74
0.42
0.18
0.28
0.18
0.18
0.18
0.29
0.83
0.43
0.53
Acetone
Absolute
Percent
Diff
110.00
37.71
48.84
31.29
2.50
37.23
15.65
29.21
81.97
0.00
1.57
33.33
0.00
0.00
19.35
6.13
44.07
10.81
16.87
0.00
71.43
0.00
| 0.00
0.00
73.68
35.15
4.65
26.35
|
Std
Dev
(ppb)
0.31
0.23
0.30
0.16
0.01
0.30
0.06
0.09
0.18 I
0.00 1
0.01 |
0.16
0.00
0.00
0.17
0.04
0.18
0.06
0.05
0.00 |
_0.14 !
I 0.00 1
! o.oo I
| 0.00
0.15
0.21
0.01
0.10
In Case 2. mean concentrations are calculated using half the analytical detection limit (ADL) for tube concentrations below ADL.

-------
   TABLE B-9.  SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                            AND STANDARD DEVIATION FOR CASE 1'
                                         Orlando, FL (ORFL)
Sample
Date
10-Jul-90
16-M-90
22-Jul-90
28-Jul-90
03-Aug-90
Week
Day
T
M
Sn
St
F
09-Aug-90 | Th
l5-Aug-90 W
27-Aug-90 1 M

ID
Number
1290
1302
1307
1316
1320
1332
1350
Formaldehyde
Mean1
Cone
(PI*)
3.55
2.52
3.54
2.82
3.15
3.52
Absolute3
Percent
Diff
7.89
13.12
2.55
46.10
8.25
Stds
Dev
(ppb)
0.20
0.23
0.06
0.92
0.18
8.25 | 0.21
3.34 I 0.90 | 0.02
1359 I 4.48 1 4.25
02-Sep-90 1 Sn 1363
08-Sep-90 I St | 1377
14-Sep-90 F
20-Sep-90 | Th
26-Sep-90
08-Oct-90
14-Oct-90
20-Oct-90
26-Oct-90
Ol-Nov-90
07-Nov-90
13-Nov-90
Ol-Dec-90
W
M
Sn
St
F
Th
W
T
St
i 13-Dec-90 1 Th
25-Dec-90 T
06-Jan-91
18-Jan-91
30-Jan-91
ll-Feb-91
23-Feb-91
| Sn
F
W
M
St
1383
1386
1397
1418
1424
1432
1446
1449D
1465
1466
1484
1508D
1522
1533
1554D
1567
1580
1596
Average
0.13
2.78 4.32 i 0.08
4.54
3.99
0.42
3.44
1.85
33.54
2.02
3.21
2.35
3.37
4.34
2.12
0.44 | 0.01
3.26
*
4.37
2.16
3.40
8.44
0.94
0.43
5.05
0.09
*
0.11
0.03
0.81
0.12
0.02
0.01
0.12
3.46 0.11
Acetaldehyde
Mean1
Cone
(Ppb)
-
0.55
1.09
0.73
1.00
1.45
1.00
1.20
0.91
0.95
1.14
0.53
1.00
0.49
9.41
0.93
1.49
0.96
1.24
1.77
1.89 0.03 | 1.02
7.01 0.43 0.02 2.91
6.38
1.81
3.48
3.59
3.60
2.44
4.40
2.67
2.21
1.44
I 7.24
3.06
0.12
0.03
0.04
0.18
0.08
6.56 | 0.11
5.67
0.15
2.67
0.67
1.35
1.26
1.47
1.04
1.49
Absolute3
Percent
Diff
*
16.51
12.84
70.34
1.01
4.14
4.00
Std3
Dev
(ppb)
*
0.06
0.10
0.36
0.01
0.04
0.03
Acetone
Mean1
Cone
(ppb)
0.37
0.69
0.57
-
-
0.77
-
Absolute3
Percent
Diff
+
*
*
*
*
Stds
Dev
(ppb)
*
*
*
*
*
31.17 | 0.17 I
* *
10.88 | 0.09 | 0.47 ] 8.51 1 0.03 1
23.20 | 0.15 1 0.43 | * *
25.26 0.17
7.02
*
4.00
2.06
101.97
9.73
35.69
1.05
4.84
2.83
1.96
3.79
0.75
8.96
0.74
6.35
2.05
7.69
14.22
0.06
*
0.03
0.01
6.78
0.06
0.37
0.01
0.04
0.04
0.01
0.08
0.01
0.04
0.01
0.06
0.02
0.06
0.33
0.67 I 13.53 | 0.06 |
0.77
11.76
1.08 | *
1.04
0.44
10.79
0.60
2.04
1.13
1.03
1.44
0.06
*
4.83 i 0.04
*
*
8.40
6.39
12.39
*
*
0.04
0.09
0.10
. 15.53 1 0.11
27.18 1 0.28
0.49 | 28.57 | 0.10
1.23 | 93.88 | 0.81
0.44 i 22.73 | 0.07
0.43
1.94
0.61
1.97
1.13
1.30
13.95 ! 0.04 1
21.65 | 0.30
31.40
12.72
0.13
0.18
14.16 I 0.11
21.04
0.15
1  In Case 1. mean concentrations are calculated using detected tube concentrations only.
:  "-" indicates concentration below analytical detection limit (ADL).
'  "*" indicates insufficient data to perform calculation.

-------
   TABLE B-10. SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                          AND STANDARD DEVIATION FOR CASE 2'
                                      Orlando, FL (ORFL)
Sample
Date
10-Jul-90
16-M-90
22-Jul-90
28-Jul-90
03-Aug-90
09-Aug-90
15-Aug-90
27-Aug-90
02-Sep-90
08-Sep-90
14-Sep-90
20-Sep-90
26-Sep-90
08-Oct-90
14-0ct-90
20-Oct-90
26-Oct-90
Ol-Nov-90
07-Nov-90
13-Nov-90
Ol-Dec-90
13-Dec-90
25-Dec-90
06-Jan-91
18-Jan-91
30-Jan-91
ll-Feb-91
23-Feb-91
Week
Day
T
M
So
St
F
Th
W
M
Sn
St
F
Th
W
M
Sn
St
F
Th
W
T
St
Th
T
Sn
F
W
M
St

n>
Number
1290
1302
1307
1316
1320
1332
1350
1359
1363
1377
1383
1386
1397
1418
1424
1432
1446
1449D
1465
1466
1484
Formaldehyde
Mean
Cone
(ppb)
3.55
2.52
3.54
2.82
3.15
3.52
3.34
4.48
2.78
4.54
3.99
0.30
3.44
1.85
33.54
2.02
3.21
2.35
3.37
4.34
2.12
1508D 7.01
1522
1533
1554D
1567
1580
1596
Average
]_ 6.38
1.81
3.48
3.59
3.60
2.44
4.39
Absolute
Percent
Diff
7.89
13.12
2.55
46.10
8.25
8.25
0.90
4.25
4.32
0.44
3.26
80.00
4.37
2.16
3.40
8.44
0.94
0.43
5.05
3.46
1.89
0.43
2.67
2.21
1.44
7.24
3.06
6.56
8.32
Sid
Dev
(Ppb)
0.20
0.23
0.06
0.92
0.18
0.21
0.02
0.13
0.08
0.01
0.09
0.17
0.11
0.03
0.81
0.12
0.02
0.01
0.12
0.11
0.03
0.02
0.12
0.03
0.04
0.18
0.08
0.11
0.15
Ace** ''i'hyde
Mean
Cone
(ppb)
0.18
0.55
1.09
0.73
1.00
1.45
1.00
1.20
0.91
0.95
1.14
0.36
1.00
0.49
9.41
0.93
1.49
0.96
1.24
1.77
1.02
2.91
2.67
0.67
1.35
1.26
1.47
1.04
1.43
Absolute
Percent
Diff
0.00
16.51
12.84
70.34
1.01
4.14
4.00
10.88
Std
Dev
(ppb)
0.00
0.06
0.10
0.36
Acetone
Mean
Conic
(ppb)
0.28
0.44
0.38
0.18
0.01 ) 0.18
0.04
0.03
0.09
0.77
0.18
0.47
23.20 0.15 1 0.31
25.26
7.02
98.59
4.00
2.06
101.97
9.73
35.69
1.05
4.84
2.83
1.96
3.79
0.75
3.96
0.74
6.35
2.05
7.69
16.72
Absolute
Percent
Diff
69.09
117.24
104.00
0.00
0.00
31.17
0.00
8.51
81.97
0.17 0.67 j 13.53
0.06 I 0.77
0.25 0.63
0.03
0.01
6.78
0.06
0.37
0.01
.0.04
1.04
0.31
5.49
0.60
2.04
1.13
1.03
0.04 | 1.44
0.01
0.08
0.01
0.04
0.01
0.06
0.02
0.06
0.32
0.49
1.23
0.44
0.43
1.94
0.61
1.97
1.13
0.95
11.76
142.86
4.83
83.87
193.44
8.40
6.39
12.39
15.53
27.18
28.57
93.88
22.73
13.95
21.65
31.40
12.72
14.16
41.83
Std
Dev
(Ppb)
0.13
0.36
0.28
0.00
0.00
0.17
0.00
0.03
0.18
0.06
0.06
0.64
0.04
0.18
7.50
0.04
0.09
0.10
0.11
0.28
0.10
0.81
0.07
0.04
0.30
0.13
0.18
0.11
0.43
1  In Case 2, mean concentration* are calculated using naif the analytical detection limit (ADL) for tube concentration! below ADL.

-------
   TABLE B-ll. SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                           AND STANDARD DEVIATION FOR CASE I1

                                     PensacoU, FL (PEFL)
Sample-
Date
10-Feb-90
22-Feb-90
12-Mar-90
24-Mar-90
05-Apr-90
17-Apr-90
29-Apr-90
ll-May-90
23-Mav-90
04-Jun-90
16-Jun-90
28-Jun-90
10-Jul-90
16-Jui-90
22-Jul-90
28-Jul-90
03-Aug-90
09-Aug-90
15-Aug-90
21-Aug-90
27-Aug-90
02-Sep-90
08-Sep-90
14-Sep-90
20-Sep-90
26-Sep-90
02-Oct-90
08-Oct-90
14-Oct-90
20-Oct-90
26-Oct-90
Ol-Nov-90
07-Nov-90
14-Nov-90
Ol-Dec-90
13-Dec-90
25-Dec-90
06-Jan-91
18-Jan-91
30-Jan-91
12-Feb-91
23-Feb-91
Week
Day
St
Th
M
St
Th
T
Sn
F
W
M
St
Th
T
M
Sn
St
F
Th
W
T
M
Sn
St
F
Th
W
T
M
Sn
St
F
Th
W
W
St
Th
T
Sn
F
W
T
St

ID
Number
1158
1159
1174
1186D
1194
1206
1213
1225
1250
1257
1263
1279
1298
1301
1313
1318
1327
1330
1339
1349
1353
1364
1368
1381
1388
1402
Formaldehyde
Mean*
Cone
(ppb)
0.91
1.38
2.52
1.69
3.86
3.01
2.05
2.18
2.86
1.87
5.16
0.91
3.46
1.98
1.57
5.03
3.61
4.15
4.35
2.63
1.71
2.58
3.60
1.81
2.62
3.73
1406 1.67
1415 1.71
1423
1431
1444
1448
1458
1467
1495
1500
1517
1527
1545D
1564
1582
1601D
Average
15.15
2.37
1.67
2.26
2.11
2.22
1.57
1.49
0.93
1.10
1.23
0.74
2.96
0.88
2.65
Absolute3
Percent
Diff
43.96
5.80
3.58
12.46
3.11
3.32
8.31
18.85
5.59
20.91
2.91
16.57
2.89
7.07
13.42
18.11
2.77
0.96
1.61
2.67
7.62
5.83
9.18
13.85
7.27
2.42
1.20
5.85
*
0.84
5.99
3.99
6.18
7.21
0.64
6.71
11.89
0.91
2.45
39.46
5.75
0.00
8.30
Std*
Dev
(ppb)
0.28
0.06
0.06
0.15
0.08
0.07
0.12
0.29
0.11
0.28
0.11
0.11
0.07
0.10
0.15
0.64
0.07
0.03
0.05
0.05
0.09
0.11
0.23
0.18
0.13
0.06
0.01
0.07
*
0.01
0.07
0.06
0.09
0.11
0.01
0.07
0.08
0.01
0.02
0.21
0.12
0.00
0.11
Acetaldehyde j
Mean2
Cone
(ppb)
0.60
-
1.06
1.57
1.52
1.15
0.75
0.58
0.77
0.58
1.12
0.76
0.41
0.48
-
1.27
0.50
1.08
1.18
0.74
0.46
0.43
0.89
0.38
0.73
1.46
0.49
0.51
2.73
0.76
0.59
1.14
0.92
1.29
0.88
0.85
0.67
0.49
0.73
0.39
1.81
0.69
0.88
Vbfiotute*
Percent
Diff
23.33
*
18.01
19.81
4.62
7.86
36.24
19.13
2.60
0.00
17.04
*
9.76
14.74
*
48.82
18.18
12.09
16.17
20.41
24.18
*
8.99
*
4.14
2.74
8.16
9.90
*
6.62
18.80
3.51
6.52
8.56
9.09
2.35
7.52
6.19
6.90
0.00
2.77
1.46
11.87
Std'
Dev
(ppb)
0.10
*
0.13
0.22
0.05
0.06
0.19
0.08
0.01
0.00
Acetone
Mean'
Cone
(ppb)
1.13
1.75
1.75
1.89
3.00
1.51
0.66
1.09
1.37
0.40
0.13 I 1.18
* 0.63
0.03
0.05
*
0.44
0.06
0.09
0.13
0.11
0.08
*
0.06
*
0.02
0.03
1.03
-
2.79
-
2.52
1.55
0.41
0.43
0.55
0.81
-
1.46
3.39
Absolute-1
Percent
Diff
16.89
7.45
70.49
0.00
4.67
2.65
12.12
23.04
8.76
12.66
64.41
*
*
15.53
*
13.29
*
13.92
27.10
*
7.06
31.19
21.12
*
25.43
3.54
0.03 - *
0.04 0.49
*
0.04
0.08
0.03
0.04
0.08
0.06
0.01
0.04
0.02
0.04
0.00
0.04
0.01
0.07
10.56
2.31
1.46
2.64
1.85
1.88
0.46
2.55
0.88
0.49
1.34
-
2.00
1.31
1.71
8.16
*
0.43
2.74
5.30
5.41
5.87
4.35
3.14
12.57
8..16
0.75

5.00
0.77
13.45
Std3
Dev
(ppb)
0.13
0.09
0.87
0.00
0.10
0.03
0.06
0.18
0.08
0.04
0.54
*
i
*
0.11
*
0.26
*
0.25
0.30
*
0.02
0.12
0.12
*
0.26
0.08
*
0.03
*
0.01
0.03
0.10
0.07
0.08
0.01
0.06
0.08
0.03
0.01

0.07
0.01
0.13
1  In Case i, mean concentration* are calculated using detected tube concentrations only.
2  *-" indicate* concentration below analytical detection limit (ADD.
'  "*" indicate* insufficient data to perform calculation.

-------
 TABLE B-12.  SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                       AND STANDARD DEVIATION FOR CASE 2'
                                  Pensacola, FL (PEFL)
Sample
Date
10-Feb-90
22-Feb-90
12-Mar-90
24-Mar-90
05-Apr-90
17-Apr-90
29-Apr-90
ll-Mav-90
23-Mav-90
04-Jun-90
16-Jun-90
i 28-Jun-90
10-Jul-90
16-JuI-90
22-Jul-90
28-Jul-90
03-Aug-90
09-Aug-90
15-Aug-90
21-Aug-90
27-Aug-90
02-Sep-90
08-Sep-90
14-Sep-90
20-Sep-90
26-Sep-90
02-Oct-90
08-Oct-90
14-Oct-90
20-Oct-90
26-Oct-90
Ol-Nov-90
07-Nov-90
14-Nov-90
Ol-Dec-90
13-Dec-90
25-Dec-90
06-Jan-91
18-Jan-91
30-Jan-91
12-Feb-9l
23-Feb-91
Week
Day
St
Th
M
St
Th
T
So
F
W
M
St
Th
T
M
Sn
St
F
Th
W
T
M
Sn
St
F
Th
W
T
M
Sn
St
F
Th
W
W
St
Th
T
Sn
F
W
T
St

ID
lumber
1158
1159
1174
1186D
1194
1206
1213
1225
1250
1257
1263
1279
1298
1301
1313
1318
1327
1330
1339
1349
1353
1364
1368
1381
1388
1402
1406
1415
1423
1431
1444
1448
1458
1467
1495
1500
1517
1527
1545D
1564
1582
1601D
Average
Formaldehyde
Mean
Cone
(ppb)
0.91
1.38
2.52
1.69
3.86
3.01
2.05
2.18
2.86
1.87
5.16
0.91
3.46
1.98
1.57
5.03
3.61
4.15
4.35
2.63
1.71
2.58
3.60
1.81
2.62
3.73
1.67
1.71
7.67
2.37
1.67
2.26
2.11
2.22
1.57
1.49
0.93
1.10
1.23
0.74
2.96
0.88
2.47
Absolute
Percent
DifF
43.96
5.80
3.58
12.46
3.11
3.32
8.31
18.85
5.59
20.91
2.91
16.57
Std
Dev
(P!*)
0.28
0.06
0.06
0.15
0.08
0.07
0.12
0.29
0.11
0.28
0.11
0.11
2.89 0.07
7.07
13.42
18.11
2.77
0.96
1.61
2.67
7.62
5.83
9.18
13.85
7.27
2.42
1.20
5.85
195.30
0.84
5.99
3.99
6.18
7.21
0.64
6.71
11.89
0.91
2.45
39.46
5.75
0.00
12.75
0.10
0.15
0.64
0.07
0.03
0.05
0.05
0.09
0.11
0.23
0.18
0.13
0.06
0.01
0.07
10.59
0.01
0.07
0.06
0.09
0.11
0.01
0.07
0.08
0.01
0.02
0.21
0.12
0.00
0.36
Acetaidehyde Acetone
Mean
Cone
(Ppb)
0.60
0.18
1.06
1.57
1.52
1.15
0.75
0.58
0.77
0.58
1.12
0.47
0.41
0.48
0.18
1.27
0.50
1.08
1.18
0.74
0.46
0.31
0.89
0.28
0.73
1.46
0.49
0.51
1.46
0.76
0.59
1.14
0.92
1.29
0.88
0.85
0.67
0.49
0.73
0.39
1.81
0.69
0.81
Absolute
Percent
Diff
23.33
0.00
18.01
19.81
4.62
7.86
36.24
19.13
2.60
0.00
17.04
123.40
9.76
14.74
0.00
48.82
18.18
12.09
16.17
20.41
24.18
81.97
8.99
71.43
4.14
2.74
S.16
9.90
175.26
6.62
18.80
3.51
6.52
8.56
9.09
2.35
7.52
6.19
6.90
0.00
2.77
1.46
20.93
Std
Dev
(ppb)
0.10
0.00
0.13
0.22
0.05
0.06
0.19
0.08
0.01
0.00
0.13
Mean
Cone
(ppb)
1.13
1.75
1.75
1.89
3.00
1.51
0.66i
1.09
1.37
0.40'
1.18
0.41 0.41
0.03 0.18
0.05
0.00
0.44
0.06
0.09
0.13
0.11
0.08
0.18
0.06
0.14
0.02
0.03
1.03
0.18
2.79
0.18
2.52
1.55
0.30
0.43
0.55
0.81
0.18
1.46
3.39
0.03 0.18
0.04
1.80
0.04
0.08
0.03
0.04
0.08
0.06
0.01
0.04
0.02
0.04
0.00
0.04
0.01
0.12
0.49
5.37
2.31
1.46
2.64
1.85
1.88
0.46
2.55
0.88
0.49
1.34
0.18
2.00
1.31
1.36
Absolute
Percent
Diff
16.89
7.45
70.49
0.00
4.67
2.65
12.12
23.04
8.76
12.66
Std
Dev
(ppb)
0.13
0.09
0.87
0.00
0.10
0.03
0.06
0.18
0.08
0.04
64.41 0.54
111.11 1 0.32
0.00 0.00
15.53 0.11
0.00
13.29
0.00
13.92
27.10
77.97
7.06
31.19
21.12
0.00
25.43
3.54
0.00
3.16
193.30
0.43
2.74
0.00
0.26
0.00
0.25
0.30
0.16
0.02
0.12
0.12
0.00
0.26
0.08
0.00
0.03
7.34
0.01
0.03
5.30 0.10
5.41
5.87
4.35
3.14
12.57
8.16
0.75
0.00
5.00
0.77
19.67
0.07
0.08
0.01
0.06
0.08
0.03
0.01
0.00
0.07
0.01
0.29
In Case 2, mean concentration* are calculated using half the analytical detection 1'""* (ADL) for tube concentration* below ADL.

-------
  TABLE B-13. SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                           AND STANDARD DEVIATION FOR CASE I1
                                      Port Neches (PNTX)
Sample
Date
12-Mar-90
24-Mar-90
05-Apr-90
17-Apr-90
29-Apr-90
ll-May-90
23-May-90
04-Jun-90
16-Jun-90
28-Jun-90
10-Jul-90
22-Jul-90
03-Aug-90
15-Aug-90
27-Aug-90
08-Sep-90
20-Sep-90
02-Oct-90
14-Oct-90
26-Oct-90
07-Nov-90
30-Nov-90
Ol-Dec-90
13-Dec-90
25-Dec-90
06-Jan-91
18-Jan-91
30-Jan-91
ll-Feb-91
23-Feb-91
Week
Day
M
St
Th
T
Sn
F
W
M
St
Th
T
Sn
F
W
M
St
Th
T
Sn
F
W
F
St
Th
T
Sn
F
W
M
St
ID
Number
1180
1183D
1192
1201
1212D
1224
1240
1256
1271
1281
1289
1305
1328
1335
1351
1371
1392
1414
1420
1437
1454
1469
1482
1499
1521
1532
1543
1559
1576
1592
Average
Formaldehyde
Mean*
Cone
(Ppb)
4.44
6.37
3.48
6,81
4.09
-
7.49
3.23
Absolute3
Percent
Diff
80.95
115.54
8.62
70.10
93.76
*
75.22
2.79
4.27 55.74
7.35
3.22
2.43
4.66
7.86
8.46
4.12
3.51
2.83
5.42
5.67
4.61
Std*
Dev

2.54
5.20
0.21
3.37
2.71
*
3.98
0.06
Ace**i'lKhyde
Mean2
Cone
(ppb)
4.23
4.35
1.84
2.99
0.84
-
1.93
1.40
1.68 2.12
49.69 2.58
0.93
19.38
76.82
56.74
8.04
10.68
15.12
0.71
14.76
0.53
22.56
5.20 12.51
5.32
3.36
4.72
4.00
7.23
2.44
7.28
4.64
4.98
9.40
46.43
0.85
9.76
2.49
18.48
3.99
9.05
30.75
0.02
0.33
2.53
3.15
0.48
0.31
0.37
0.01
0.57
0.02
0.74
0.46
0.35
1.10
0.03
0.28
0.13
0.32
0.21
0.30
1.17
5.22
1.99
0.61
1.71
3.34
3.88
1.97
2.52
1.14
3.26
2.16
2.03
3.88
3.74
1.17
2.12
2.48
1.77
0.79
3.56
1.50
2.43
Absolute*
Percent
Diff
21.75
20.69
31.06
6.37
38.10
*
9.87
5.71
13.21
21.07
6.55
19.67
22.22
14.37
14.43
10.69
1.99
0.00
11.66
1.85
17.73
17.81
7.76
9.44
0.47
0.81
4.52
2.53
9.28
10.67
12.15
Std*
Dev
(ppb)
0.65
0.64
0.40
0.13
0.23
*
0.13
0.06
0.20
0.78
0.09
0.08
0.27
0.34
0.40
0.15
0.04
0.00
0.27
0.03
0.25
0.49
0.21
0.08
0.01
0.01
0.06
0.01
0.23
0.11
0.22
Acetone
Mean3
Cone
(ppb)
1.27
2.26
1.58
1.45
-
-
1.39
0.41
0.48
1.78
-
-
0.41
1.49
1.77
0.49
0.59
0.59
1.05
1.93
1.51
0.44
0.49
-
0.83
0.45
0.88
0.94
2.86
1.52
1.15
Absolute3
Percent
Diff
43.48
27.94
19.68
13.79
*
*
10.07
19.51
48.42
1.69
*
*
*
4.03
15.30
4.08
1.71
3.39
16.27
7.79
*
*
*
*
3.64
4.44
2.27
21.28
4.20
3.30
13.16
Std3
Dev
(ppb)
0.39
0.45
0.22
0.14
*
*
0.10
0.06
0.16
0.02 |
*
*
*
0.04
0.19
0.01
0.01
0.01
0.12
0.11
*
*
*
*
0.02
0.01
0.01
0.14
0.08
0.04
0.11
In Case 1, mean concentrations are calculated using detected tube concentrations only.
"-" indicates concentration below analytical detection limit (ADL).
"*" indicates insufficient data to perform calculation.

-------
   TABLE B-14.  SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                          AND STANDARD DEVIATION FOR CASE 21
                                   Port Necfaes (PNTX)
Sample
Date
12-Mar-90
24-Mar-90
05-Apr-90
17-Apr-90
29-Apr-90
ll-May-90
23-Mav-90
04-Jun-90
16-Jun-90
28-Jun-90
10-Jul-90
22-Jui-90
03-Aug-90
15-Aug-90
27-Aug-90
08-Sep-90
20-Sep-90
02-Oct-90
14-Oct-90
26-Oct-90
07-Nov-90
30-Nov-90
Ol-Dec-90
13-Dec-90
25-Dec-90
06-Jan-91
18-Jan-91
30-Jan-91
ll-Feb-91
23-Feb-91
Week
Day
M
St
Th
T
Sn
F
W
M
St
Th
T
Sn
F
W
M
St
Th
T
Sn
F
W
F
St
Th
T
Sn
F
W
M
St

n>
Shimber
1180
1183D
1192
1201
1212D
1224
1240
1256
1271
1281
1289
1305
1328
1335
1351
1371
1392
1414
1420
1437
1454
1469
1482
1499
1521
1532
1543
1559
1576
1592
Average
Formaldehyde
Mean
Cone
(ppb)
4.44
6.37
3.48
6.81
4.09
0.18
7.49
3.23
4.27
7.35
3.22
2.43
4.66
7.86
8.46
4.12
3.51
2.83
5.42
5.67
4.61
Absolute
Percent
Diff
80.95
115.54
8.62
70.10
93.76
0.00
75.22
2.79
55.74
49.69
0.93
19.38
76.82
56.74
8.04
10.68
15.12
0.71
14.76
0.53
22.56
5.20 12.51
5.32
3.36
4.72
4.00
7.23
2.44
7.28
4.64
4.82
9.40
46.43
0.85
9.76
2.49
18.48
3.99
9.05
29.72
Std
Dev
(Ppb)
2.54
5.20
0.21
3.37
2.71
0.00
3.98
0.06
1.68
2.58
0.02
0.33
2.53
3.15
0.48
0.31
0.37
0.01
0.57
0.02
0.74
Aceiidehyde
Mean
Cone
(ppb)
4.23
4.35
1.84
2.99
0.84
0.18
1.93
1.40
2.12
5.22
1.99
0.61
1.71
3.34
3.88
1.97
2.52
1.14
3.26
2.16
2.03
0.46 1 3.88
0.35
1.10
0.03
0.28
0.13
0.32
0.21
0.30
1.14
3.74
1.17
2.12
2.48
1.77
0.79
3.56
1.50
2.36
Absolute
Percent
Diff
21.75
20.69
31.06
6.37
38.10
0.00
9.87
5.71
13.21
21.07
6.55
19.67
22.22
14.37
14.43
10.69
1.99
0.00
11.66
1.85
17.73
17.81
7.76
9.44
0.47
0.81
4.52
2.53
9.28
10.67
11.74
Std
Dev
(ppb)
0.65
0.64
0.40
0.13
0.23
0.00
0.13
0.06
Acetone
Mean
Cone
(ppb)
1.27
2.26
1.58
1.45
0.18
0.18
1.39
0.41
Absolute
Percent
Diff
43.48
27.94
19.68
13.79
0.00
0.00
10.07
19.51
Std
Dev
(ppb)
0.39
0.45
0.22
0.14
0.00
0.00
0.10
0.06
0.20 0.48| 48.421 0.16
0.78
0.09
0.08
0.27
0.34
0.40
0.15
0.04
0.00
0.27
0.03
0.25
0.49
0.21
0.08
0.01
0.01
0.06
0.01
0.23
0.11
0.21
1.78
1.69
0.18 1 0.00
0.18 | 0.00
0.30
1.49
1.77
0.49
0.59
0.59
1.05
1.93
0.85
0.31
0.34
0.18
0.83
0.45
0.88
0.94
2.86
1.52
0.95
77.97
4.03
15.30
4.08
1.71
3.39
16.27
7.79
157.40
83.87
92.54
0.00
3.64
4.44
2.27
21.28
4.20
3.30
22.93
0.02
0.00
0.00
0.16
0.04
0.19
0.01
0.01
0.01
0.12
0.11
0.94
0.18
0.22
0.00
0.02
0.01
0.01
0.14
0.08
0.04
0.13
1 In Case 2, mean concentrations are calculated using half the analytical detection limit (ADL) for tube concentration* below ADL.

-------
   TABLE B-15. SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                            AND STANDARD DEVIATION FOR CASE 1'

                                          Sauget, EL (SAIL)

Sample
Date
12-Mar-90
24-Mar-90
05-Apr-90
16-Apr-90
ll-Mav-90
23-May-90
04-Jun-90
16-Jun-90
28-Jun-90
10-Jui-90
24-Jul-90
03-Aug-90
14-Aug-90
27-Aug-90
08-Sep-90
25-Sep-90
02-Oct-90
14-Oct-90
26-Oct-90
07-Nov-90
19-Nov-90
Ol-Dec-90
13-Dec-90
27-Dec-90
06-Jan-91
18-Jan-91
30-Jan-91
12-Feb-91
23-Feb-91


Week
Day
M
St
Th
M
F
W
M
St
Th
T
T
F
T
M
St
T
T
Sn
F
W
M
St
Th
Th
1 Sn
F
W
T
St


ED
Number
1165
1177
1195
1208
1226
1246
1262
1269
1280
1294
1315
1329
1344
1354
1372
1401
1404
1419
1441
1461D
1471
1491D
1501
1523
1535
1552D
1565
1581
1604D
Average
Fo
Mean2
Cone
(ppb)
1.16
1.52
2.16
1.39
0.97
1.97
3.05
3.09
1.88
7.23
2.48
1.97
2.81
6.15
3.16
3.45
4.54
2.84
2.08
1.88
3.18
| 1.13
1.48
1.83
1.71
1.88
1.76
1.72
1.94
2.51
nnaidehyd
Absolute3
Percent
Diff
12.07
13.16
22.22
19.49
7.25
2.54
14.12
1 10.03
6.38
0.14
2.02
150.13
4.98
0.16
3.49
0.29
5.95
16.58
5.77
0.53
27.04
2.67
8.11
8.22
3.51
1.06
7.95
1.16
6.68
16.32
e
Std3
Dev
(Ppb)
0.10
0.14
0.34
0.19
0.05
0.04
0.30
2.40
0.08
0.01
0.04
2.09
0.10
0.01
0.08
0.01
0.19
0.33
0.08
0.01
0.61
0.02
0.08
0.11
0.04
0.01
0.10
0.01
0.09
0.27
A<
Mean2
Cone
(ppb)
0.52
1.33
1.03
0.54
0.60
1.06
1.66
1.53
-
1.89
0.81
0.65
0.77
1.12
1.10
1.07
1.53
1.04
1.28
1.05
I 1.79
| 0.87
I 0.98
1.31
1.24
0.91
1 1.02
0.88
0.95
1.09
jetaldehyd
\bsoiute3
Percent
Diff
5.83
4.51
0.98
31.78
33.33
23.70
3.02
*
*
6.35
3.73
38.76
6.54
11.66
22.83
5.61
7.84
11.54
19.61
2.87
26.82
36.78
3.08
7.63
2.43
2.20
0.00
3.43
0.00
11.96
e
Std3
Dev
(ppb)
0.02
0.04
0.01
0.12
0.14
0.18
0.04
*
*
0.08
0.02
0.18
0.04
0.09
0.18
0.04
0.08
0.00
0.18
0.02
0.34
0.23
1 0.02
| 0.07
0.02
0.01
0.00
0.02
0.00
0.08

Mean2
Cone
(ppb)
0.54
1.53
1.52
1.31
0.96
1.36
0.88
0.74
0.55
1.12
1.62
1.06
0.97
0.56
0.86
2.91
3.15
1.91
1.19
1.04
1.48
0.75
I 0.71
0.93
0.92
1.11
1.07
0.83
1.10
1.19
Acetone
Absolute3
Percent
Diff
35.51
34.75
0.66
4.58
15.71
0.74
2.27
*
14.55
31.39
28.40
21.80
23.83
30.63
1.17
4.81
3.17
0.52
2.53
2.90
19.66
4.03
8.45
9.73
2.17
4.52
3.74
6.06
0.00
11.37

Std3
Dev
(ppb)
0.13
0.37
0.01
0.04
0.11
0.01
0.01
*
0.06
0.25
0.33 |
0.16
0.16
0.12
0.01
0.10
0.07
0.01
0.02
0.02
0.21
0.02
0.04
0.06
0.01
0.04
0.03
0.04
0.00
0.09
'  In Case 1, mean concentrations are calculated using detected tube concentrations only.
2  '-" indicates concentration below analytical detection limit (ADL).
'  "*" indicates insufficient data to perform calculation.

-------
  TABLE B-16. SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                         AND STANDARD DEVIATION FOR CASE 21

                                      Sauget, IL (SAIL)
Sample
Date
12-Mar-90
24-Mar-90
05-Apr-90
16-Apr-90
ll-May-90
23-May-90
04-Jun-90
16-Jun-90
; 28-Jun-90
| 10-Jul-90
24-Jul-90
03-Aug-90
14-Aug-90
27-Aug-90
08-Sep-90
25-Sep-90
02-Oct-90
14-Oct-90
26-Oct-90
07-Nov-90
19-Nov-90
j Ol-Dec-90
!3-Dec-90
27-Dec-90
06-Jan-91
18-Jan-91
30-Jan-91
12-Feb-91
23-Feb-91
Week
Day
M
St
Th
M
F
W
M
St
ID
Number
1165
1177
1195
1208
1226
1246
1262
1269
Formaldehyde
Mean
Cone
(ppb)
1.16
1.52
2.16
1.39
0.97
1.97
3.05
3.09
Th | 1280 | 1.88
T
T
F
T
M
St
T
T
Sn
F
W
M
St
I Th
Th
Sn
F
W
T
St
1294
1315
1329
1344
1354
1372
1401
1404
1419
1441
1461D
1471
1491D
1501
1523
1535
1552D
1565
1581
1604D
Average
7.23
2.48
1.97
2.81
6.15
3.16
3.45
4.54
2.84
2.08
1.88
3.18
1.13
1.48
1.83
1.71
| 1.88
1.76
1.72
1.94
2.49
Absolute
Percent
Diff
12.07
13.16
22.22
19.49
7.25
2.54
14.12
110.03
Std
Dev
(ppb)
0.10
0.14
0.34
0.19
0.05
0.04
0.30
Acetaldehyde
Mean
Cone
(ppb)
0.52
1.33
1.03
0.54
0.60
1.06
1.66
2.40 | 0.86
6.38 | 0.08
0.14 I 0.01
2.02
150.13
4.98
0.16
3.49
0.29
5.95
16.58
5.77
0.53
27.04
2.67
0.04
2.09
0.10
0.01
0.08
0.01
0.19
0.33
0.08
0.01
0.61
0.18
1.89
0.81
0.65
0.77
1.12
1.10
1.07
1.53
1.04
1.28
1.05
1.79
0.02 1 0.87
8.11 | 0.08
8.22 | 0.11
3.51
1.06
7.95
1.16
6.68
15.99
0.04
0.01
0.10
0.01
0.09
0.26
0.98
1.31
1.24
0.91
1.02
0.88
0.95
1.03
Absolute
Percent
Diff
5.83
4.51
0.98
31.78
33.33
23.70
3.02
157.89
0.00
6.35
3.73
38.76
6.54
11.66
22.83
5.61
7.84
11.54
19.61
2.87
26.82
Std
Dev
(ppb)
0.02
0.04
0.01
0.12
0.14
0.18
0.04
Acetone
Mean
Cone
(ppb)
0.54
1.53
1.52
1.31
0.96
1.36
0.88
0.95 0.46
0.00
0.08
0.02
0.18
0.04
0.09
0.18
0.04
0.08
0.00
0.18
0.02
0.55
1.12
1.62
1.06
0.97
0.56
0.86
2.91
3.15
1.91
1.19
1.04
0.34 1.48
36.78 | 0.23 | 0.75
3.08 I 0.02
7.63
2.43
2.20
0.00
3.43
0.00
16.58
0.07
0.02
0.01
0.00
0.02
0.00
0.11
0.71
0.93
0.92
1.11
1.07
0.83
1.10
1.18
Absolute
Percent
Diff
35.51
34.75
0.66
4.58
15.71
0.74
2.27
121.74
14.55
31.39
28.40
21.80
23.83
30.63
1.17
4.81
3.17
0.52
2.53
2.90
19.66
Std
Dev
(ppb)
0.13 |
0.37 |
0.01
0.04
0.11
0.01
0.01 |
0.40 1
0.06 I
0.25 |
0.33 I
0.16 I
0.16
0.12
0.01
0.10
0.07
0.01
0.02
0.02
0.21
4.03 0.02 |
8.45
9.73
2.17
4.52
3.74
6.06
0.00
15.17
0.04 1
0.06
0.01 |
0.04 I
0.03
0.04
0.00
0.10
In Case 2, mean concentrations are calculated using half the analytical detection limit (ADL) for tube concentrations below ADL.

-------
   TABLE B-17.  SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                             AND STANDARD DEVIATION FOR CASE I1
                                           Toledo, OH (TLOH)

Sample
Date
05-Apr-90
16-Apr-90
29-Apr-90
ll-May-90
23-May-90
04-Jun-90
16-Jun-90
28-Jun-90
i 10-Jul-90
22-Jul-90
03-Aug-90
15-Aug-90
27-Aug-90
08-Sep-90
20-Sep-90
02-Oct-90
14-Oct-90
26-Oct-90
07-Nov-90
19-Nov-90
Ol-Dec-90
13-Dec-90


Week
Day
Th
M
Sn
F
W
M
St
Th
T
Sn
F
W
M
St
Th
T
Sn
F
W
M
St
1 Th


ID
Number
1193 1
1205D
1214
1223
1243
1253
1264
1278
1293
1306
1326
1345
1355
1367
1387
1410
1425
1440
1455
1478D
| 1486
1507
Average
Fo
Mean*
Cone
(ppb)
1.88
1.43
1.53
1.22
1.73
0.79
3.17
2.02
3.46
1.56
4.19
4.90
5.43
2.36
1.35
2.67
2.06
1.89
1.60
3.45
| 2.05
2.04
2.40
rmaidehyc
Absolute3
Percent
Diff
13.83
28.77
5.90
1.64
16.81
10.13
66.03
3.47
0.29
5.13
12.89
0.41
3.50
18.64
23.70
2.25
6.80
17.99
6.90
2.03
10.73
| 6.39
12.01
&
Std3
Dev
(ppb)
0.18
0.29
0.06
0.01
0.21
0.06
1.48
0.05
0.01
0.06
0.38
0.01
0.13
0.31
0.23
0.04
0.10
0.24
0.08
0.05
0.16
1 0.09
0.19
A
Mean3
Cone
(ppb)
0.70 J
1.01
0.75
-
1.05
-
1.23
-
0.76
-
2.65
1.39
1.57
1.16
0.55
1 1.36
-
0.68
0.81
2.36
| 1.07
I 0.59
1.16
cetaldehyc
Absolute3
Percent
Diff
57.14
26.87
33.56
*
1.90
*
75.92
*
73.68
*
10.57
5.05
33.12
74.14
*
4.41
*
*
2.47
15.71
10.33
*
30.35
\e
Std3
Dev
(ppb)
0.28 |
0.19
0.18 j
*
0.01
*
0.66
*
0.40
*
0.20
0.05
0.37
0.61
*
0.04
*
*
1 0.01
1 0.26
0.08
*
0.24

Mean2
Cone
(ppb)
1.45 |
1.21
1.43
0.83
2.04
0.55
1.04
0.69
2.08
1.34
3.16
3.73
0.76
1.39
1.52
2.22
2.14
1.35
1.16
1 1.54
1 1.29
1.00
1.54
Acetone
Absolute3
Percent
Diff
2.76
2.49
17.54
15.76
21.57
10.91
68.60
5.80
16.87
16.42
14.90
14.23
10.53
5.76
8.58
4.97
0.47
2.96
7.79
1.95
9.30
9.05
12.24

Stds
Dev
(ppb)
0.03 |
0.02 1
0.18
0.09
0.31
0.04
0.50
0.03 1
0.25 1
0.16
0.33
0.37 |
0.06
0.06
0.09
0.08
0.01
0.03
0.06
0.02
1 0.08
| 0.06
0.13
'  In Case 1, mean concentrations are calculated using detected tube concentrations only.
:  "-" indicates concentration below analytical detection limit (ADL).
J  "*" indicates insufficient data to perform calculation.

-------
 TABLE B-18.  SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                         AND STANDARD DEVIATION FOR CASE 21
                                       Toledo, OH (TLOH)
Sample
Date
05-Apr-90
16-Apr-90
29-Apr-90
1 l-May-90
23-Mav-90
04-Jun-90
16-Jun-90
28-Jun-90
Week
Day
Th
M
Sn
F
W
M
St
Th
j 10-Jul-90 1 T
22-Jul-90
03-Aug-90
15-Aug-90
27-Aug-90
08-Sep-90
20-Sep-90
02-Oct-90
14-Oct-90
26-Oct-90
07-Nov-90
Sn
F
W
M
St
Th
T
Sn
F
W
19-Nov-90 | M
Ol-Dec-90 | St
13-Dec-90 1 Th

ID
Number
1193
1205D
1214
1223
1243
1253
1264
1278
1293
Formaldehyde
Mean
Cone
(ppb)
1.88
1.43
1.53
1.22
1.73
0.79
3.17
2.02
3.46
1306 | 1.56
1326 4.19
1345
1355
1367
1387
1410
1425
1440
1455
1478D
1486
1507
Average
4.90
5.43
2.36
1.35
2.67
2.06
1.89
1.60
3.45
2.05
2.04
2.40
Absolute
Percent
Diff
13.83 1
28.77
5.90
1.64
16.81
10.13
66.03
3.47
0.29
5.13
12.89
0.41
3.50
18.64
23.70
2.25
6.80
17.99
6.90
| 2.03
I 10.73
i 6.39
12.01
Std
Dev
(ppb)
0.18
0.29
0.06
0.01
0.21
0.06
1.48
0.05
Acetaidehyde
Mean
Cone
(ppb)
0.70
1.01
0.75
0.18
1.05
0.18
1.23
Absolute
Percent
Diff
57.14
26.87
33.56
0.00
1.90
0.00
75.92
0.18 0.00
0.01 | 0.76
0.06
0.38
0.01
0.13
0.31
! 0.23
I 0.04
| 0.10
| 0.24
| 0.08
1 0.05
1 0.16
1 0.09
0.19
Std
Dev
(ppb)
0.28
0.19
0.18
0.00
0.01
0.00
0.66
0.00
Acetone
Mean
Cone
(ppb)
1.45
1.21
1.43
0.83
2.04.
0.55
1.04-
0.69
73.68 0.40 i 2.08
0.18 0.00
2.65 10.57
|_ 1.39 5.05
1.57 33.12
1.16
0.37
1.36
0.18
0.43
0.81
2.36
1.07
| 0.39
0.91
74.14
101.37
4.41
0.00
116.28
2.47
15.71
10.33
106.49
34.05
0.00
0.20
0.05
0.37
0.61
0.26
0.04
0.00
0.00
0.01
0.26
0.08
0.29
0.18
1.34
3.16
3.73
0.76
1.39
1.52
2.22
2.14
1.35
1.16
]_1.54
| 1.29
Absolute
Percent
Diff
2.76
2.49
17.54
15.76
21.57
10.91
68.60
5.80
16.87
16.42
14.90
14.23
10.53
5.76
8.58
4.97
0.47
2.96
7.79
1.95
9.30
1.00 1 9.05
1.54
L2.24
Std
Dev
(ppb)
0.03 I
0.02
0.18
0.09
0.31
0.04
0.50
0.03 1
0.25 1
0.16 I
0.33 |
0.37
0.06
0.06
0.09
0.08
0.01
0.03
0.06
0.02
0.08
| 0.06 1
0.13
In Case 2, mean concentrations are calculated using half the analytical detection limit (ADL) for tube concentrations below ADL.

-------
  TABLE B-19.  SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                           AND STANDARD DEVIATION FOR CASE 1'

                                     Washington, DC (W1DC)
Sample
Date
i2-Mar-90
24-Mar-90
05-Apr-90
17-Apr-90
29-Apr-90
ll-May-90
Week
Day
M
St
Th
T
Sn
F
23-May-90 1 W
04-Jun-90 I M
j 16-Jun-90 | St
1 28-Jun-90 | Th
10-Jul-90 T
22-Jul-90
03-Aug-90
15-Aug-90
27-Aug-90
08-Sep-90
2Q-Sep-90
02-Oct-90
14-Oct-90
Sn 1
F
W
M
St
Th
T
Sn
26-Oct-90 | F
07-Nov-90 j W
! 19-Nov-90 | M
Ol-Dec-90
13-Dec-90
25-Dec-90
St
Th
T
06-Jan-9L | Sn
18-Jan-91 | F
30-Jan-91
ll-Feb-91
23-Feb-91
1 w
M
St

ID
Number
1171
1179
1188
1203D
1220
1233
1249
Formaldehyde
Mean2
Cone
(ppb)
3.85
2.34
3.75
3.62 I
3.61 |
1.90
\bsoiute3
Percent
Diff
46.55
61.24]
53.67 !
4.42
14.15]
70.18
Stds
Dev
(ppb)
1.27
1.01
1.42
0.11
0.36
Acetaidehyde
Mean2
Cone
(ppb)
1.37
1.73
1.54
0.67
1.38
0.94 0.69
2.84 j 32.10 I 0.64
1258 | 2.11 | 30.88 1 0.46
0.93
0.66
1265 | 9.49 | 5.48 I 0.37 | 3.57
1284 | 9.88 | 6.28 | 0.44 | 2.77
1295
1309
1322
1340
1360
1379
1385
1411
1430
1442
1457
9.38
8.10
8.36
8.61
7.55
3.89
11.30| 0.751 2.40
2.84 1 0.16 i 1.83
2.63
7.09
30.09
6.44
3.69 2.71
4.13
3.85
2.72
3.70
5.33
2.34
7.00
5.95
0.16
0.43
1.61
0.18
0.07
0.16
3.04
2.70
2.25
1.05
1.21
1.34
0.06 1.35
0.13 | 1.23
I 0.16 | 1.59
1480D i 4.40 | 1.82 I 0.06 j 1.64
1485
1503
1520
1528
1550
1566
1588D
1595
Average
7.48 0.13
4.43
3.96
3.71
2.11
5.47
3.07
3.82
4.86
| 4.29
0.01 | 2.62
0.13
5.82 0.16
0.00
0.48
3.48
5.86
4.19
14.49
| 0.00
I 0.01
0.13
0.13
0.11
0.39
1.94
1.76
2.06
1.02
2.07
1.15
1.52
1.70
Absolute3
Percent
Diff
59.85
41.62
31.92
46.62
3.64
Std3
Dev
(ppb)
0.58
0.51
0.35
0.22
0.04
62.77 0.30
Acetone
Mean1
Cone
(ppb)
2.89
1.49
1.53
2.26 1
1.59
1.01
Absolute3
Percent
Diff
13.84
45.64
48.37
11.09
13.84
55.45
43.85 i 0.29 1.12 | 17.86
Std3
Dev
(ppb)
0.28
0.48
0.52
0.18 |
0.16
0.40
0.14
29.01 0.13 i 0.98 1 42.86 | 0.30 |
15.13 1 0.38 i 2.90 | 34.48 ( 0.71 1
5.42 1 0.11 | 2.68
1.25
15.30
5.26
11.50
8.46
10.53
33.06
1.49
8.18
8.98
4.42
0.02
0.20
0.11
0.22
0.13
0.08
0.28
0.00
0.08
0.08
1.97
1.86
3.59
2.90
2.53
1.34
2.30
2.00
1.12
1.29
0.05 1.60
3.06 I 0.04 1 1.25
0.00 | 0.00 | 1.89
1.55 | 0.02 1.35
3.99
1.46
5.88
0.97
6.11
2.63
15.80
0.05 1.06
0.02 i 1.68
0.04 | 0.81
0.01
0.05
0.03
0.15
1.75
28.04
30.89
9.68
57.94
15.54
17.39
13.43
6.54
1.00
13.45
5.45
12.50
20.80
14.32
65.19
11.32
13.73
9.88
12.03
0.80 13.84
1.15
1.75
2.62
21.97
0.53 I
0.43
0.13
1.47
0.32
0.31
0.13
0.11
0.01
0.11
0.05
1 0.14 i
1 0.18 |
i 0.19 j
0.62
0.08
0.16
0.06
0.15
0.08
0.02
0.28
In Case 1, mean concentrations are calculated using detected tube concentrations only.
-" indicates concentration below analytical detection limit (ADL).
"*' indicates insufficient data to perform calculation.

-------
 TABLE B-20. SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                         AND STANDARD DEVIATION FOR CASE 2'
                                   Washington, DC (W1DC)
Sample
Date
12-Mar-90
24-Mar-90
05-Apr-90
17-Apr-90
Week
Day
M
St
Th
T
29-Apr-90 Sn
ll-May-90 F
23-May-90 W

ID
Number
Formaldehyde
Mean
Cone
(ppb)
1171 3.85
1179
1188
1203D
1220
1233
2.34
3.75
3.62
3.61
1.90
1249 2.84
Absolute
Percent
Diff
Std
Dev
(ppb)
46.55 | 1.27
61.24 1.01
53.67
4.42
14.15
1.42
0.11
0.36
70.18 1 0.94
32.10 | 0.64
Acetaldehyde Acetone
Mean
Cone
(ppb)
1.37
1.73_[
1.54
0.67
1.38
0.69
0.93
Absolute
Percent
Diff
Std
Dev
(Ppb)
Mean
Cone;
(ppb)
59.85 1 0.58 1 2.89
41.62
31.92
46.62
3.64
62.77
0.51 1.49
0.35 1.53
0.22 ! 2.26
0.04
0.30
Absolute
Percent
Diff
13.84
45.64
48.37
Std
Dev
(Ppb)
0.28
0.48
0.52
11.09 i 0.18
1.59 13.84
1.01
0.16
55.45 0.40 |
43.85 0.29 1.12 17.86
0.14 i
04-Jun-90 M 1258 2.11 30.88 ! 0.46 i 0.66 29.01 0.13 0.98 42.86 0.30 1
16-Jun-90 St 1265 9.49
5.48 1 0.37 | 3.57 15.13 0.38 2.90 34.48 0.71
28-Jun-90 Th | 1284 1 9.881 6.28 0.44 | 2.77 5.42^ 0.11 2.68 28.04 j_ 0.53 |
10-Jul-90
T 1295
22-Jul-90 | Sn
03-Aug-90
15-Aug-90
27-Aug-90
08-Sep-90
20-Sep-90
02-0ct-90
14-0ct-90
26-Oct-90
07-Nov-90
F
W
M
St
Th
T
Sn
F
W
1309
1322
1340
9.38
8.10
8.36
8.61
1360 | 7.55
1379
1385
1411
1430
1442
3.89
3.69
4.13
3.85
2.72
1457 ! 3.70
11.301 0.75 2.40 1.25
2.841 0.16
2.63
7.09
30.09
6.44
2.71
5.33
2.34
0.16
0.43
1.61
0.18
0.07
0.16
0.06
7.00| 0.13
5.95
0.16
I9-Nov-90 M 1480D 1 4.40 1.82 0.06
L01-Dec-90
13-Dec-90
25-Dec-90
06-Jan-91
18-Jan-91
30-Jan-91
J_ St 1485 7.48 0.13 | 0.01
Th
T
Sn
F
W
ll-Feb-91 | M
23-Feb-91
St
1503
1520
1528
1550
1566
1588D
1595
Average
4.43
3.96
3.71
2.11
5.47
3.07
3.82
4.86
4.29
5.82
0.00
0.48
3.48
5.86
4.19
14.49
0.13
0.16
0.00
0.01
0.13
0.13
0.11
0.39
1.83 15.30
3.04
2.70
2.25
1.05
1.21
1.34
1.35
1.23
1.59
5.26 J
11.50
8.46
10.53
33.06
1.49
8.18
8.98
4.42
0.02 1.97 30.89 0.43
0.20 1.86 9.68 0.13
0.1 Ij^ 3.59
0.22 2.90
0.13
0.08
0.28
0.00
0.08
0.08
2.53J
[ 1.34
2.30
2.00
57.94
15.54
17.39
13.43
6.54
1.00
1.12 | 13.45
1.29 i 5.45
0.05 | 1.60 I 12.50
1.64 3.06 0.04 1.25 1 20.80
2.62
1.94
1.76
2.06
1.02
2.07
1.15
1.52
1.70
0.00 I 0.00 1.89 1 14.32
1.55
3.99
1.46
5.88
0.97
6.11
2.63
15.80
0.02 1.35
0.05
1.06
0.02 1.68
0.04
0.01
0.05
0.03
0.15
0.81
1.75
65.19
11.32
13.73
9.88
12.03
0.80 | 13.84
1.15
1.75
1.47
0.32
0.31
0.13
0.11
0.01
0.11
0.05
0.14
0.18
0.19 I
0.62
0.08
0.16
0.06
0.15
0.08
2.62 | 0.02
21.97
0.28
In Case 2, mean concentrations are calculated using half the analytical detection limit (ADL) for tube concentrations below ADL.

-------
   TABLE B-21. SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                            AND STANDARD DEVIATION FOR CASE I1
                                         Wichita, KS (W1KS)
Sample
Date
13-Mar-90
25-Mar-90
05-Apr-90
17-Apr-90
29-Apr-90
ll-May-90
23-May-90
04-Jun-90
16-Jun-90
28-Jun-90
10-Jul-90
22-Jul-90
03-Aug-90
15-Aug-90
27-Aug-90
08-Sep-90
20-Sep-90
02-Oct-90
14-0ct-90
26-Oct-90
07-Nov-90
l9-Nov-90
Week
Day
T
Sn
Th
T
Sn
F
W
M
St
Th
T
Sn
F
W
M
St
Th
T
Sn
F
W
M
Ol-Dec-90 | St
13-Dec-90
25-Dec-90
06-Jan-91
18-Jan-91
30-Jan-91
ll-Feb-91
23-Feb-91
Th
T
Sn
F
W
M
St

ED
Number
1173
1176
1198D
1209
1218
1227
1248
1254
1272
1287
1296
1311
1333
1342
1362
1370
1395
1412
1428
1439
1459D
1468
1487
1511
1515D
1536
1549
1560D
1578
1603
Average
Formaldehyde
Mean1
Cone
(ppb)
1.38
3.96
2.18
3.75
4.16
2.45
3.72
3.22
Absolute3
Percent
Diff
1.45
4.80
7.34
11.48
10.58
1.63
4.04
Stds
Dev
(ppb)
0.01
0.13
0.11
0.30
0.31
0.03
0.11
0.62 i 0.01
6.37 I 7.22 0.33
7.28
7.90
2.79
5.03
4.58
8.95
6.78
4.58
4.91
4.78
0.14
1.01
6.45
21.07
10.48
11.62
0.74
4.80
0.81
3.14
6.08 | 0.82
2.63
2.67
4.13 | 4.61
3.42
2.56
5.41
3.46
7.39
5.94
7.43
4.60
4.73
5.26
3.91
0.56
0.87
0.68
3.03
1.35
3.91
4.57
0.01
0.06
0.13
0.75
0.34
0.74
0.04
0.16
0.03
0.11
0.04
0.05
0.13
0.13
0.07
0.02
0.02
0.04
0.13
0.07
0.13
0.15
Acetaldebyde
Mean2
Cone
(ppb)
0.40
2.48
1.58
0.85
2.04
0.69
1.42
1.29
1.92
2.14
2.95
0.97
2.36
1.68
2.20
2.65
1.97
1.58
2.26
2.11
1.30
2.18
1.71
1.12
2.64
1.48
3.53
2.11
2.68
1.54
1.86
Absolute3
Percent
Diff
*
1.21
0.63
61.18
6.86
18.98
16.90
24.81
Std3
Dev
(ppb)
*
0.02
0.01
0.37
0.10
0.09
0.17
Acetone
Mean*
Cone
(ppb)
0.96
2.04
1.49
1.47
1.97
1.50
1.57
0.23 1.44
10.42 1 0.14
7.96
13.92
6.19
33.90
5.95
8.66
7.18
5.60
2.53
11.50
8.53
2.32
5.50
9.97
16.07
4.93
1.35
3.40
10.43
0.37
7.79
10.86
0.12
0.29
0.75
2.16
2.51
0.04 | 1.57
0.57
0.07
0.13
0.13
0.08
0.00
0.18
0.13
0.02
0.78
1.31
2.23
4.01
1.93
3.72
2.73
3.83
1.41
0.08 1.75
0.12
0.13
0.09
0.01
0.08
0.16
0.01
0.08
0.13
1.47
0.86
1.43
1.16
3.15
1.31
3.52
1.67
1.92
Absolute3
Percent
Diff
54.17
45.70
6.06
9.52
4.06
6.02
7.03
44.44
55.03
55.56
2.39
19.11
11.61
*
9.44
1.75
5.18
4.58
2.20
1.31
10.68
1.14
1.36
0.00
3.51
7.79
1.90
2.30
0.57
4.20
13.06
Std1
Dev
(ppb)
0.37
0.66
0.06
0.10
0.06
0.06
0.08
0.45
0.29
0.85
0.04
0.21
0.06
*
0.15
0.05
0.07
0.12
0.04
0.04
0.11
0.01
0.01
0.00
0.04
0.06
0.04
0.02
0.01
0.05
0.14
'  In Case 1, mean concentrations are calculated using detected tube concentrations only.
2  "-" indicates concentration below analytical detection limit (AOL).
3  "*" indicates insufficient data to perform calculation.

-------
 TABLE B-22. SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE
                         AND STANDARD DEVIATION FOR CASE 2'
                                      Wichita, KS (W1KS)
Sample
Date
13-Mar-90
25-Mar-90
05-Apr-90
17-Apr-90
29-Apr-90
ll-May-90
23-May-90
! 04-Jun-90
: 16-Jun-90
L_28-Jun-90
10-Jul-90
22-Jul-90
03-Aug-90
15-Aug-90
27-Aug-90
08-Sep-90
20-Sep-90
02-Oct-90
14-Oct-90
26-Oct-90
07-Nov-90
! 19-Nov-90
Ol-Dec-90
13-Dec-90
25-Dec-90
06-Jan-91
18-Jan-91
30-Jan-91
ll-Feb-91
23-Feb-91
Week
Day
T
Sn
Th
T
Sa
F
W
M

ID
Number
1173
1176
1198D
1209
1218
1227
1248
1254
Formaldehyde
Mean
Cone
(ppb)
1.38
3.96
2.18
3.75
4.16
2.45
3.72
3.22
Absolute
Percent
Diff
1.45
4.80 |
7.34
11.48
10.58
1.63
4.04
0.62
Std
Dev
(ppb)
0.01
0.13
0.11
0.30
0.31
0.03
0.11
0.01
St 1272 1 6.37 ! 7.22 0.33
Th
T
Sn
F
W
M
St
Th
T
Sn
F
W
1287
7.28
0.14
0.01
1296 7.90 | 1.01 | 0.06
1311
1333
1342
1362
1370
1395
1412
1428
1439
1459D
2.79
5.03
4.58
8.95
6.78
4.58
4.91
4.78
6.08
I 2.63
M 1 1468 4.13
St
Th
T
Sn
F
W
M
St
1487 | 3.42
1511
1515D
1536
1549
1560D
1578
1603
Average
2.56
5.41
3.46
| 7.39
5.94
7.43
4.60
4.73
6.45 | 0.13
21.07
10.48
11.62
0.74
4.80
0.81
3.14
0.82
2.67
I 4.61
5.26
3.91
0.56
0.87
0.68
3.03
1.35
3.91
4.57
0.75
0.34
0.74
0.04
0.16
0.03
0.11
0.04
0.05
1 0.13
0.13
0.07
0.02
0.02
0.04
0.13
0.07
0.13
0.15
Acetaidehyde
Mean
Cone
(ppb)
0.29
2.48
1.58
0.85
2.04
0.69
1.42
1.29 I
1.92
2.14
2.95
0.97
2.36
1.68
2.20
2.65
1.97
1.58
2.26
2.11
1.30
2.18
1.71
1.12
2.64
1.48
3.53
2.U
2.68
1.54
1.86
Absolute
Percent
Diff
75.86
1.21
0.63
61.18
6.86
18.98 |
16.90
24.81
10.42
7.96
13.92
6.19
33.90
5.95
8.66
7.18
5.60
2.53
11.50
8.53
2.32
Std
Dev
(ppb)
0.16
0.02
0.01
0.37
0.10
0.09
0.17
0.23
Acetone
Mean
Cone
(ppb)
0.96_l
2.04 |
1.49
1.47
1.97
1.50
1.57
Absolute
Percent
Diff
54.17
45.70 |
Std
Dev
(ppb)
0.37 |
0.66 |
6.06 | 0.06
9.52
4.06
6.02 |
7.03
0.10
0.06
0.06
0.08 1
1.44. ( 44.44 j 0.45 1
0.14 I 0.75 | 55.03 I 0.29 1
0.12
0.29
2.16
2.51
0.04 i 1.57
0.57 | 0.78
0.07
0.13
0.13
0.08
0.00
0.18
0.13
0.02
0.75
2.23
4.01
1.93
3.72
2.73
3.83
1.41
5.50 0.08 | 1.75
9.97
16.07
4.93
1.35
3.40
10.43
0.37
7.79
13.03
0.12
0.13
0.09
0.01
0.08
0.16
0.01
0.08
0.13
1.47
0.86
1.43
1.16
j 3.15
1.31
3.52
1.67
1.90
55.56 | 0.85 |
2.39 | 0.04 1
19.11
11.61
0.21 I
0.06
151.68 ! 0.80
9.44
1.75
5.18
4.58
2.20
1.31
0.15
0.05
0.07
0.12
0.04
0.04 |
10.68 1 0.11 |
1.14 j 0.01 |
1.36
0.00
3.51
7.79
1.90
1 0.01 |
0.00
0.04 j
0.06
0.04
2.30 0.02
0.57
| 0.01
4.20 | 0.05
17.68
0.16
In Case 2. mean concentrations arc calculated using half the analytical detection limit (ADL) for tube concentrations below ADL.

-------
  TABLE B-23.  SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                           AND STANDARD DEVIATION FOR CASE I1

                                      Washington, DC (W2DC)
Sample
Date
12-Mar-90
24-Mar-90
05-Apr-90
17-Apr-90
29-Apr-90
ll-May-90
23-May-90
04-Jun-90
16-Jun-90
28-Jun-90
10-Jul-90
22-Jul-90
03-Aug-90
15-Aug-90
27-Aug-90
08-Sep-90
20-Sep-90
02-Oct-90
14-Oct-90
26-Oct-90
07-Nov-90
19-Nov-90
Ol-Dec-90
13-Dec-90
25-Dec-90
06-Jan-91
18-Jan-91
30-Jan-91
ll-Feb-91
23-Feb-91
Week
Day
M
St
Th
T
Sn
F
W

ID
Number
1172
1181
1191
1199
1217D
1234
Formaldehyde
Mean1
Cone
(ppb)
10.04
5.22
6.13
6.28
4.44
3.45
1247 4.76
M ] 1259
2.95
St 1266 10.36
Th 1283 13.32
T
1292
Sn 1312
F
W
M
St
Th
T
Sn
F
W
M
St
Th
T
Sn
F
W
M
St
1325
1336
1356
1378
1389
1408
1429
1443
1456
1473
1489D
1506
11.14
8.62
12.28
10.77
8.77
5.56
6.24
7.59
5.70
7.86
Absolute3
Percent
Diff
69.46
68.84
Std3
Dev
(Ppb)
4.93
2.54
29.88 | 1.29
45.54
5.19
41.16
37.39
48.14
2.02
0.16
1.00
1.26
Acetaldehyde
Mean3
Cone
(ppb)
4.89
2.50
2.29
2.39
1.79
1.04
1.38
1.00 1.38
3.28 0.24 4.46
1.73
14.46
9.40
10.02
18.57
14.26
0.90
3.05
3.82
11.93
12.60
8.99 1 6.57
0.16
1.14
0.57
0.87
1.41
0.88
0.04
0.13
0.21
0.48
0.70
0.42
3.82
3.60
2.30
4.00
3.23
2.70
1.76
2.46
2.03
2.62
1.53
1.99
10.43 2.68 0.20 2.76
9.40 I 1.49 j 0.10
9.88
1518 9.63
1529D | 6.23
1551
1568D
1583
1599D
Average
9.37
10.09
4.64
7.53
7.92
16.10
3.12
4.98
2.03
1.88
7.76
1.06
16.58
1.12
0.21
0.00
0.13
0.13
0.25
0.06
0.79
3.10
2.50
1.80
2.56
1.69
2.82
1.50
1.44
2.47
Absolute3
Percent
Diff
67.76
84.57
18.82
78.41
Std3
Dev
(ppb)
2.34
1.49
0.30
1.32
8.40 0.11
62.80 0.46
26.09
38.55
Acetone
Mean3
Cone
(ppb)
5.24
1.84
2.12
2.90
2.21
1.31
0.25 1.58
0.37
1.10
Absolute3
Percent
Diff
62.08
99.73
32.62
StdJ
Dev
(ppb)
2.30
1.29
0.49
60.45 I 1.24
41.63 1 0.65
60.54 i 0.56
6.33 | 0.07
34.55 I 0.27 |
22.42 0.71 3.78 8.74 1 0.23
6.03
0.16 4.51 24.64 0.78
13.63 0.35
2.27
5.66 0.09 2.07
0.50
0.00
1.11
5.13
4.48
6.90
21.80
3.28
3.51
0.01 | 4.99
0.00
0.02
0.06
0.08
0.00
0.40
0.04
0.05
3.28
2.61
1.86
2.90
2.72
1.36
1.30
23.79 | 0.38
9.20 | 0.13 |
29.26 | 1.03
24.73
1.92
3.23
8.28
3.68
20.59
11.58
0.57
0.04
0.04
0.17
0.07
0.20
0.11
3.38 1 9.19 I 0.22
8.70 0.17 1.98 19.75 0.28
3.55 0.08 | 2.59
10.02 0.18
1.67
12.50
2.37
5.67
3.34
1.39
17.64
0.02
0.23
0.03
0.11
0.04
0.01
0.32
2.07
1.01
1.71
1.30
4.03
1.08
0.92
2.40
1.16 | 0.02
J_ 19.85 | 0.29
18.91
0.00
19.31
28.57
13.95
4.35
23.42
0.13
0.00
0.18 |
0.81
0.11
0.03
0.42
In Case 1, mean concentrations are calculated using detected tube concentrations only.
"-" indicates concentration below analytical detection limit (ADL).
"*" indicates insufficient data to perform calculation.

-------
 TABLE B-24.  SUMMARY OF MEAN CONCENTRATION, ABSOLUTE PERCENT DIFFERENCE,
                         AND STANDARD DEVIATION FOR CASE 2'

                                   Washington, DC (W2DC)
Sample
Date
12-Mar-90
24-Mar-90
05-Apr-90
17-Apr-90
29-Apr-90
ll-May-90
23-May-90
04-Jun-90
Week
Day
M
St
Th
T
Sn
F
W
M
16-Jun-90 | St
28-Jun-90
10-Jul-90
22-Jul-90
03-Aug-90
15-Aug-90
27-Aug-90
08-Sep-90
20-Sep-90
02-Oct-90
14-Oct-90
26-Oct-90
Th
T
Sn
F
W
M
St
Th
T
Sn
F
07-Nov-90 j W
19-Nov-90 | M
Ol-Dec-90
13-Dec-90
25-Dec-90
06-Jan-91
18-Jan-91
30-Jan-91
ll-Feb-91
23-Feb-91
1 St
Th
T
Sn
F
W
M
St

ED
Number
1172
1181
1191
1199
1217D
1234
1247
1259
Formaldehyde
Mean
Cone
(ppb)
10.04 |
5.22
6.13
6.28
4.44
3.45
4.76
2.95
Absolute
Percent
Diff
69.46
Std
Dev
(ppb)
4.93
68.84 i 2.54
Acetaldehyde
Mean
Cone
(PPb)
4.89
2.50
29.88 | 1.29 2.29
45.54 I 2.02
5.19 |
41.16 |
37.39
48.14
0.16
1.00
1.26
2.39
1.79
1.04
1.38
1.00 1 1.38
1266 ! 10.36 | 3.28 ! 0.24 I 4.46
1283
1292
13.32
11.14
1312 8.62
1325
1336
1356
1378
1389
1408
1429
1443
1456
1473
1489D
1506
1518
1529D
1551
1568D
1583
1599D
Average
12.28
10.77
8.77
5.56
6.24
7.59
5.70
7.86
8.99
1.73 | 0.16
14.46
Absolute
Percent
Diff
67.76
84.57
18.82
78.41 |
Std
Dev
(ppb)
2.34
1.49
0.30
1.32
8.40 | 0.11
62.80 1 0.46
26.09 | 0.25
38.55 I 0.37
22.42 | 0.71
Acetone
Mean
Cone
(ppb)
5.24
1.84
2.12
2.90
2.21
1.31
1.58
1.10
3.78
3.82 I 6.03 i 0.16 | 4.51
1.14 3.60
9.40 j 0.57 2.30
10.02
18.57
14.26
0.90
3.05
3.82
11.93
0.87
1.41
0.88
0.04
0.13
0.21
0.48
4.00
3.23
2.70
1.76
2.46
2.03
2.62
12.60 | 0.70 | 1.53
13.63 | 0.35
5.66 I 0.09
0.50 | 0.01
0.00
1.11
5.13
4.48
6.90
21.80
3.28
6.57 | 0.42 1 1.99 | 3.51
10.43 | 2.68 I 0.20 1 2.76 | 8.70
9.40
9.88
9.63
6.23
9.37
10.09
4.64
7.53
7.92
1 1.49 | 0.10 | 3.10
16.10
3.12
4.98
2.03
1 1.88
1.12
0.21
| 0.00
0.13
0.13
7.76 | 0.25
1.06
16.58
2.50
1.80
2,56
1.69
2.82
1.50
| 0.06 | 1.44
0.79
2.47
3.55
10.02
1.67
12.50
2.37
5.67
3.34
1.39
17.64
0.00
0.02
0.06
0.08
0.00
0.40
0.04
0.05
2.27
2.07
4.99
3.28
2.61
1.86
2.90
2.72
1.36
1.30
3.38
Absolute
Percent
Diff
62.08
99.73
32.62
60.45
41.63
60.54
6.33
34.55
8.74
24.64
23.79
9.20
29.26
24.73
1.92
3.23
8.28
3.68
20.59
11.58
9.19
0.17 | 1.98 | 19.75
0.08
0.18
0.02
0.23
0.03
0.11
0.04
0.01
0.32
2.59
2.07
1.01
1.71
1.30
4.03
1.08
0.92
2.40
I 1.16
19.85
18.91
0.00
19.31
28.57
13.95
4.35
23.42
Std
Dev
(Ppb)
2.30
1.29
0.49
1.24
0.65
0.56
0.07
0.27
0.23 |
0.78
0.38
0.13
1.03
0.57
0.04
0.04
0.17
0.07
0.20
0.11
0.22 1
0.28 1
0.02 |
0.29
0.13
0.00 |
0.18
0.81
0.11
0.03
0.42
In Case 2, mean concentrations are calculated using half the analytical detection limit (ADL) for tube concentrations below ADL.

-------
                          Appendix C  - Analytical  Data  Listing
:32-045/can.20ef
CarOonvi 1990 Final Reoort

-------
             TABLE C-l.  SUMMARY OF CONCENTRATION AND PURITY FOR BRLA
Sample
Date
Week
Day
10-Jul-90 T
16-Jul-90
22-Jul-90
28-M-90
03-Aug-90
09-Aug-90
15-Aug-90
21-Aue-90
27-Aug-90
02-Sep-90
08-Seo-90
M
Sn
St
F
Th
W
T
M
Sn
St
i 14-Seo-90 F
20-Sw>-90 Th
26-Sep-90
02-0ct-90
08-Oct-90
14-Oct-90
20-Oct-90
26-Oct-90
Ol-Nov-90
07-Nov-90
19-Nov-90
Ol-Dec-90
13-Dec-90
25-Dcc-90
06-Jan-91
18-Jan-91
30-Jan-91
12-Feb-91
23-Feb-91
W
T
M
Sn
St
F
Th
W
M
St
Th
T
Sn
F
W
F
T
ID
Number

Lot
Formaldehyde
Tube I
(ppb)
Tube 2
(ppb)
Tubel
Purity
Tube 2
Purity
Acetaldehyde
Tubel
(PI*)
1297 51 4.96 5.56 | 0.980 0.998 0.99
1303
1304
1317
1321
1331
1338
1347
1358
1365
1380
1382
55
55
55
55
55
55
55
55
55
55
55
1394 55
1396
1409
1417
1427
1433D
1445
1447
1453
1476D
1493
1497D
55
55
55
51
55
51
55
56
49
49
49
1512 60
1534 | 60
1556
1562D
1584D
1594
60
60
60
4.41
3.19
6.31
3.92
6.06
6.58
6.01
3.99
2.73
4.27 0.999 0.998
1.81
7.17
4.73
6.19
6.59
7.65
3.21
0.988 I 0.978
0.999
0.997
0.998
0.999
0.998
0.999
0.998
0.997
0.998
0.995
1.000 0.999
2.38
-999
-999
-999
2.11
2.24
-999
-999
2.50 0.976 0.996 -999
3.18 2.29
0.997 0.999
-999
3.87 3.57 0.983 0.992 -999
5.29
11.02
5.37
3.82
6.53
5.84
4.89
6.13
6.45
6.64
4.33
3.60
5.20
10.93
5.49
3.85
6.55
5.42
4.91
6.18
6.57
6.93
4.14
3.84
6.13 | 6.07
2.00 1 2.36
2.82 | 2.78
2.70 | 2.29
6.98 | 6.83
1.000 1.000 1.29
1.000 1.000
1.000 1.000
1.000
1.000
1.000
0.999
1.000
1.000
1.000
0.999
0.999
1.000
0.998
1.000
0.999
1.000
1.000
1.000
1.000
0.999
1.000
1.000
1.000
0.999
0.998
1.000
1.000
0.999
0.999
0.999
62 3.85 | 4.04 i 0.999 0.999
7.32
2.19
1.39
3.91
3.32
3.86
3.54
3.22
3.47
1.61
-999
2.19
1.00
1.23
1.52
3.71
1.79
Tube 2
(PI*)
1.07
1.77
-999
-999
-999
2.45
2.35
1.18
-999
-999
-999
Tubel
Purity
0.993
0.996
0.000
0.859
0.773
0.987
0.977
0.975
0.796
0.667
0.795
Tube 2
Purity
0.995 1
0.992 |
0.765 |
0.906 I
0.742
0.990
0.978
0.958
0.647
0.974
0.000
-999 I 0.981 I 0.959
1.50
7.16
2.25
1.47
3.93
3.08
3.53
3.54
3.14
4.45
1.05
-999
2.32
1.29
1.37
1.08
3.62
1.69
0.993
0.992
0.992
0.992
0.993
0.992
0.992
0.990
0.992
0.992
0.991
0.991
0.991
0.992
0.992
0.991
0.993
0.991
0.992
0.992
0.992
0.993
0.992
0.990
0.991 I 0.993
0.992 | 0.992
0.991
0.992
0.992
0.992
0.992
0.991
0.992
0.993
Acetone
Tubel
(ppb)
-999
-999
-999
-999
-999
3.48
-999
-999
-999
-999
-999
-9991
-999
7.05
0.76
-999
3.45
4.54
2.70
4.73
3.43
3.18
0.86
-999
1.41
1.18
1.69
1.75
4.11
1.51
Tube 2
(Ppb)
-999
-999
-999
-999
-999
3.28
-999
-999
-999
Tubel
Purity
0.814
0.741
0.000
0.000
0.000
0.975
0.856
0.732
0.000
-999 0.000
-999 0.000
Tube 2
Purity
0.783 1
0.795 1
0.721 |
O.OOOJ
0.000 |
0.989
0.909
0.000
0.000
0.000
0.000
-999 0.478 0.807 1
-999
7.34
0.88
-999
3.46
4.15
2.67
5.02
3.47
2.72
1.24
-999
0.667
|0.982
0.978
0.801
0.980
0.974
0.965
0.678
0.980
0.980
0.938
0.983
1.30 0.984
1.30 0.980
1.71
1.45
4.00
1.54
0.985
0.978
0.984
0.984
0.000
0.984
0.945
0.910
0.979
0.973
0.981
0.980
0.978
0.976
0.971
0.980
0.971
0.968
0.985
0.982
0.984
0.966
"-999.00" indicates concentration below analytical detection limit (ADL).

-------
             TABLE C-2. SUMMARY OF CONCENTRATION AND PURITY FOR C4IL
1
Sample
Date
Week
Day
24-Mar-90 1 St
05-Apr-90 | Th |
17-Apr-90 1
29-Apr-90
ll-May-90
23-Mav-90
04-Jun-90
16-Jun-90
28-Jun-90
T
Sn
F
W
M
St
Th
22-Jul-90 | Sn
03-Aue-90 j F
j 16-Aug-90
Th
i 27-Aua-90 1 M
08-Sep-90
20-Sep-90
02-0ct-90
14-Oct-90
26-Oct-90
08-Nov-90
19-Nov-90
OI-Dec-90
13-Dec-91
28-Dec-90
04-Jan-91
St
Th
T
Sn
F
Th
M
St
Th
F
I F
I8-Jan-9I | F
| 30-Jan-91 | W
ll-Feb-91
23-Feb-91
| M
St
ID
Number
1175
1196
1207
1219
1223
1244
1261
1268
1285
1314
1324

Lot
46
46
46
51
51
51
51
51
51
55
55
1343 | 55
1352
1375
1391
1407
1421
1436
1452
1475
1483
1504
1525
1537D
1547
55
55
55
55
51
51
56
49
49
49
60
60
60
1557 | 60
1577
1593
60
62
Formaldehyde
Tubel
(Ppb)
3.72
3.80
3.71
2.86
3.26
3.36
2.45
7.72
5.63
7.47
12.53
5.30
8.02
5.12
4.45
4.91
4.39
4.41
3.98
3.61
4.47
3.57
3.25
4.57
3.85
1 5.19
3.52
3.14
Tube 2
(Pf*)
3.96
4.29
4.06
Tubel
Purity
Tube 2
Purity
Acctaldchydc j Acetone 1
Tubel
(PI*)
0.997 I 0.925 1 2.61
0.993 I
0.994 I
2.88 0.999
3.49
2.74
2.44
7.28
5.95
7.72
14.75
0.994
0.949
0.989
0.983
0.890
0.999
0.999
0.999
0.998
0.996
0.991
0.989
0.997
0.997
0.999
0.998 1 0.996
5.05 | 1.000
6.84
5.38
5.39
5.26
4.79
4.26
4.04
4.14
3.25
3.39
3.21
4.66
0.999
1.71 |
1.53
1.04
1.76
1.51
0.94
3.54
2.55
2.96
4.02
Tube 2
(PI*)
2.56
1.92
1.82
1.31
1.75
1.48
0.91
3.26
2.38
3.03
5.64
Tube 1
Purity
0.887
0.981
0.995
0.601
0.983
0.997
0.994
0.991
0.534
0.995
0.947
Tube 2
Purity
0.992 1
0.995 |
0.994 |
0.953
0.894
0.994
Tube 1
(Ppb)
3.03
Tube 2
(PI*)
2.80 |
2.60 | 3.38 I
2.02 1 1.97 |
1.32 2.73 |
2.21
5.10
0.990 1 3.52
0.977
0.981
0.993
0.983
3.90
3.71
4.32
4.45
1.84 |
4.85
3.60
3.08
3.34
3.37
2.29
1.75 I 1.94 | 0.990 i 0.992 | 4.01 j 3.50
0.999 i 0.998 | 2.04
0.999
1.000
1.000
0.999
1.000
1.000
1.000
1.000
0.999
'1.000
| 1.000
0.997
0.999
1.000
0.999
1.000
2.28
2.14
1.81
2.24
2.31
1.000 1.98
1.000
1.000
0.999
1.000
0.999
3.71 1 1.000 j 1.000
1.90
2.38
1.71
1.58
2.09
| 1.41
j 4.42 I 1.000 | 1.000 1 2.01
3.33
3.22
1.000
0.999
1 1.000
1.000
| 1.31
0.98
2.28
2.22
2.39
1.90
2.42
2.31
1.90
2.23
1.39
1.09
1.57
2.07
i 1.38
| 2.04
| 1.32
) 1.01
0.992 | 0.966 1 3.23 | 3.00
0.999
0.992
0.993
0.992
0.992
0.992
0.991
0.992
0.993
0.992
0.993
0.993
0.993
0.993
0.992
0.997
2.12
1.93
0.992 1 7.2.7 | 8.37
0.992
0.993
6.80 | 7.12
2.96
0.991 | 3.74
0.992
0.993
0.993
0.992
0.993
0.993
0.993
| 3.94
2.28
2.10
1.01
1.28
1.24
I 1 .45
2.95
3.31
3.94
2.65
1.86
0.98
1.18
1.24
1.19
0.992 I 1.74J 1.79
0.992 | 0.97 | 0.91
0.992
| 0.82
0.84
Tubel
Purity
0.893
0.998 |
0.904
0.516
0.977
0.986
0.607
0.794
0.569
0.816
0.941
0.996
0.990
0.919
Tube 2|
Purity i
0.440 1
0.979 1
0.960 1
0.845 1
0.632 1
0.907 !
0.970 1
0.818 !
0.911 1
0.816 1
0.905 1
0.995 1
0.967 1
0.989 1
0.980 1 0.981 1
0.984
0.977
0.974
0.978
0.984
0.978
| 0.974
| 0.928
I 0.891
1 0.978
1 0.981
I 0.980
1 0.979
0.983 1
0.978 1
0.981 1
0.985 1
0.977 |
0.971 |
0.980 I
0.921 1
0.978 1
0.974 1
0.980 1
0.977 !
0.982 !
"-999" indicates concentration below analytical detection limit (ADL).

-------
             TABLE C-3. SUMMARY OF CONCENTRATION AND PURITY FOR CANJ
Sample
Date
I2-Mar-90
24-Mar-90
05-Apr-90
17-Apr-90
29-Aor-90
1 l-Mav-90
23-Mav-90
04-Jun-90
16-Jun-90
28-Jun-90
lO-Jul-90
Week
Day
M
ID
Number

Lot
1166 | 46
St 1 178 46
Th
T
Sn
F
W
M
St
Th
T
1190D
1200
1215
1232
1242
1260
1270
1282
46
46
51
51
51
51
51
51
Formaldehyde
Tubel
(Ppb)
8.96
2.99
4.34
5.03
3.84
2.48
3.07
2.90
5.32
9.52
1288 55 | 8.87
22-Jul-90 Sn 1310 1 55 9 26
03-Aug-90
15-Aug-90
27-Aug-90
F
W
M
08-Sep-90 j St
20-Sep-90
02-0ct-90
14-0ct-90
26-Oct-90
07-Nov-90
19-Nov-90
Ol-Dec-90
Th
T
Sn
F
W
M
St
13-Dec-90 I Th
25-Dec-90 T
06-Jan-91 Sn
18-Jan-91 ) F
30-Jan-91 I W
ll-Feb-91
M
23-Feb-91 I St
1319 55
1337
1361
1369
1384
1403
1422
1438
1463D
1472
1494
1505
1513D
55
55
55
55
55
51
51
56
49
49
49
60
1531 60
1548
1570D
60
60
1586D 60
1597 62
|_ 9.05
8.21
7.23
3.08
3.13
4.03
5.04
2.32
3.64
3.12
4.81
5.20
3.38
428
2.64
5.40
2.81
3.08
Tube 2
(ppb)
Tubel
Purity
8.16 0.997
3.83 0.987
4.34 0.997
4.84
0.991
3.64 0.989
2.24
3.09
2.82
0.996
0.993
0.992
5.26 0.999
9.44
0.994
Tube 2
Purity
0.995
0.980
0.997
0.997
0.991
0.969
0.987
0.972
0.997
0.961
8.82 0.990 0.996
8.97 1.000 0.999
10.57 0.971 0.998
8.38
6.91
0.999 | 0.998
0.999
3.23 0.999
3.35
4.03
5.05
2.38
3.61
3.18
4.82
4.95
3.21
1.000
1.000
1.000
0.999
1.000
0.999
1.000
1.000
0.997
0.997
1.000
0.999
0.999
1.000
0.999
1.000
1.000 1 1.000
1.000 1 1.000
4.43 | 1.000 | 0.999
2.40 [ 0.999
5.09
2.82
1.000
0.999
2.89 | 0.998
1.000
1.000
0.999
0.998
Acetaldchyde
Tubel
(PI*)
Tube 2
(PP>)
Tubel
Purity
4.39 4.79 0.995
1.86| 1.87
1.93
2.61
1.91
1.01
1.30
1.30
2.02
3.90
3.52
3.51
4 10
4.03
3.13
1.08
2.10
1.38
2.90
1.42
2.08
1.87
2.66
2.82
1.91
2.22
1.40
2.48
1.38
1.54
2.03
2.44
1.58
0.85
1.23
1.18
1.85
3.84
4.19
0.412
0.997
0.991
0.980
0.997
0.997
0.987
0.985
0.970
0.979
3.21 0.994
3.81 1 0.991
4.30
3.22
1.19
2.43
1.90
2.91
1.46
2.14
1.75
2.53
2.77
0.995
0.978
0.979
0.987
0.993
0.992
0.991
0.992
0.991
0.992
0.993
1.82 | 0.993
2.29 | 0.993
1.32
2.41
1.34
1.42
0.992
0.992
0.993
0.992
Tube 2
Purity
Acetone
Tubel
(ppb)
0.995 4.41
0.995
Tube 2
(ppb)
3.96
2.63 2.09
0.991 2.37
0.994
0.904
0.887
2.37
1.41
1.52
0.988 1.77
0.989
1.06
0.996 | 1.68
0.999
3.75
0.996 2.90
2.11
2.38
1.56
1.28
2.25
1.19
1.58
4.19
3.01
0.994 2.49 | 2.63
0.945 4.23 6.38
0.921 4.39
4.48
0.998 2.78 3.17
0.995
0.991
0.992
0.993
0.992
0.993
0.992
0.992
0.993
1.94
3.52
2.40
1.38
1.79
2.11
1.22
1.71
1.97
0.994 I 1.33
0.993 | 1.77
0.992 | 1.30
0.993
0.993
2.40
1.04
0.992 | 1.37
2.08
2.90
2.41
1.42
1.79
1.96
1.16
1.84
1.83
1.20
Tubel
Purity
0.933
0.394
0.541
0.981
0.969
0.967
0.654
0.570
0.630
0.980
0.958
Tube 2
Purity
0.945
0.988
0.864
0.692
0.973
0.855
0.976
0.971
0.873
0.953
0.980
0.981 | 0.983
0.920
0.984
0.972
0.603
0.850
0.982
0.974
0.980
0.978
0.955
0.983
0.978
0.981
1.73 | 0.807
1.24
2.39
1.05
1.29
0.976
0.967
0.964
0.973
0.957
0.939
0.957
0.974
0.973
0.979
0.968
0.980
0.982
0.979
0.981
0.981
0.982
0.992
0.979
0.979
0.966
0.981
"-999" indicates concentration below analytical detection limit (ADL).

-------
             TABLE C-4.  SUMMARY OF CONCENTRATION AND PURITY FOR H1TX
Sample
Date
12-Mar-90
24-Mar-90
05-Apr-90
17-Apr-90
1 l-May-90
23-Mav-90
04-Jun-90
16-Jun-90
22-Jul-90
| 03-Aug-90
j 15-AUR-90
! 27-Aug-90
Week
Day
M
St
Th
T
F
W
M
St
Sn
F
W
M
ID
Number
1170D

Lot
46
1184 1 46 |
1187 |
1210
1230D
1245
1255
1267
1308
1323
46
46
51
51
51
51
55
55
1334 | 55
1357
55
08-Sep-90 | St | 1373D i 55
20-Sep-90 Th
02-Oct-90
14-Oct-90
26-Oct-90
07-Nov-90
19-Nov-90
Ol-Dec-90
13-Dec-90
25-Dec-90
06-Jan-91
18-Jan-9!
j 30-Jan-91
' ll-Feb-91
23-Feb-91
T
Sn
F
W
M
St
Th
T
Sn
F
W
| M
St
1390
1413
1426
1435
1451
1474
1488
1502
1519
1539D
1544
55
55
51
51
51
49
49
49
60
60
60
1558 1 60
Formaldehyde
Tube 1
(ppb)
0.36
1.17 |
1.08
1.91
0.64
2.11
2.01
1.61
1.02
1.13
1.95
Tube 2
(ppb)
0.94
1.65_[
1.16
1.69
0.61
2.52
1.86
1.62
1.14
1.16
1.86
Tubel
Purity
Tube 2
Purity
Acetaldehvde
Tubel
(Ppb)
0.921 I 0.912 0.40
0.997 i 0.930 1 0.83 |
0.997 I
0.925 1
0.941
0.998
0.990
0.972
0.999
0.994
1.000
0.996
0.996
0.925
0.978
0.992
0.978
0.998
0.996
-999
0.85
0.37
0.83
0.69
0.36
0.38
-999
0.995| 1.14
1.53 1.31 I 0.996 | 0.993 | 0.79
1.04 1.02 i 0.994 | 0.993 | -999
1.29
1.31
1.50
1.99
1.28
1.21
1.65
2.28
1.31
1.48
1.48
1.21 1 1.000
1.58
1.60
2.03
1.33
1.07
1.64
1.88
1.34
1.56
1.55
0.52 0.59
1.000
1.000
1.000
1.000
0.999
0.999
1.000
0.978
1.000
0.999
1.000
1574 1 60 | 2.48 | 2.61 I 1. 000
1598
62
| 1.38
1.40
1.000
0.999
0.68
0.999 1 0.94
0.994 | 1.21
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1 1.03
0.77
0.89
0.69
0.62
I 0.86
j 0.45
| 0.40
Tube 2
(ppb)
0.45
0.44
-999
0.45
-999
1.18
0.89
0.55
0.38
0.38
1.28
0.80
-999
0.68
1.07
1.36
1.39
0.83
0.97
0.67
0.52
0.87
0.43
0.43
0.998 i 0.36 i 0.40
Tubel
Purity
Tube 2
Purity
0.927 ! 0.970
0.926 I 0.849
0.966
0.948
0.988
0.992
0.937
0.988
0.947
0.887
0.975
0.981
0.918
0.871
0.985
0.984
0.951
0.978
0.886
0.984
0.998 | 0.946
0.998 1 0.984
0.993
0.993
0.993
0.994
0.990
0.993
0.977
0.989
0.989
0.993
0.990
0.979
| 1.000 | 1.16 | 1.13 | 0.993
i 1.000 i 0.70
0.70
0.992
0.992
0.992
0.993
0.992
0.993
0.992
0.992
0.989
0.990
0.991
0.990
I 0.967
0.991
| 0.991
Acetone
Tube 1
(PP*>)
Tube 2
(ppb)
-999 ) 0.62
0.71
1.07
0.62
0.81
0.94
0.53
0.38
0.43
1 -999
1 0.63
1.04
0.65
0.85
0.79
1.37
0.62
0.51
-999
-999
Tubel
Purity
0.917
0.895
0.763
0.900
0.667
0.817
0.851
0.729
0.667
0.928
0.64 1 0.975
1 0.77 I 0.55
1 -999
-999
0.979
-999 | 0.667
-999
1.12) 1.36
0.79
0.72
0.70
0.45
-999
0.38
-999
-999
-999
-999
0.97
1 0.42
0.84
0.46
0.78
0.38
-999
-999
-999
-999
-999
0.39
0.68
0.44
0.667
0.979
0.924
0.791
0.788
0.955
0.667
0.973
0.667
0.667
0.667
0.667
0.790
0.817
Tube 2
Purity |
0.851 1
0.726 1
0.743 1
0.926 1
0.768 I
0.805 1
0.736 1
0.740 |
0.667 |
0.752 1
0.883 1
0.979 1
0.908 I
0.667 1
0.979 |
0.932
0.667
0.790
0.816
0.667
0.667
0.805
0.667
0.667
0.667
0.783
0.817
"-999" indicates concentration below analytical detection limit (ADL).

-------
             TABLE C-5.  SUMMARY OF CONCENTRATION AND PURITY FOR ORFL
Sample
Date
lO-Jul-90
16-Jul-90
22-Jul-90
28-Jul-90
03-Aug-90
09-Aug-90
15-Aug-90
27-Aug-90
02-Sep-90
08-Sep-90
Week
Day
T
M
Sn
St
F
Th
W
M
Sn
St
14-Sep-90 | F
20-Sep-90 | Th
26-Sep-90 1 W
08-0ct-90
14-Oct-90
20-Oct-90
26-Oct-90
Ol-Nov-90
07-Nov-90
13-Nov-90
Ol-Dec-90
13-Dec-90
25-Dec-90
06-Jan-91
18-Jan-91
30-Jan-9l
ll-Feb-91
23-Feb-91
M
Sn
St
F
Th
W
T
St
Th
T
Sn
F
1 W
M
St
ID
Number
1290
1302
1307
1316
1320
1332
1350
1359
1363
1377
1383
1386
1397
1418
1424
1432
1446
1449D
1465
1466
1484
1508D
1522
1533
1554D
1567
1580
1596

Lot
51
55
55
55
55
55
55
55
55
55
55
55
55
55
51
55
51
55
56
49
49
49
60
60
60
60
60
62
Formaldehyde
Form
(PP>)
3.41
2.35
3.49
2.17
3.28
3.37
Form
(PP*>)
3.69J
2.68
3.58
3.47
3.02
3.66
3.32 | 3.35
4.38
2.84
4.53
3.92
4.57
2.72
4.55
4.05
Form
Purity
0.993
Form
Purity
Acetaldehyde
Acetald
(PI*)
0.998 | -999
0.998 I 0.998 0.59
1.000 | 0.993 | 1.02
0.998
0.986
0.999
0.998
1.000
1.000
1.000
0.995
0.998
0.997
0.999
0.995
0.999
0.998
0.47
1.00
1.42
0.98
1.13
1.01
0.998 | 1.07
0.990 1 1.18
-999 0.42 0.893 0.982
3.36
1.87
32.97
1.93
3.22
2.35
3.45
4.26
2.10
7.02
6.29
1.83
3.51
1.83
34.11
2.10
3.19
2.34
3.28
4.41
2.14
6.99
6.46
1.79
3.50 3.45
3.46
1.000
1.000
1.000
1.000
0.999
1.000
1.000
1.000
1.000
0.999
1.000
0.997
0.999
1.000
1.000
1.000
0.999
1.000
1.000
1.000
0.999
0.998
1.000
1.000
-999
0.98
0.49
4.61
0.88
1.75
0.95
1.27
1.74
1.01
2.96
2.66
0.64
1.000 1.000 1.35
3.72 I 0.999
3.54 | 3.65
2.36
2.52
1.000
0.999
0.999 1.22
1 1.000
0.999
1.45
1.00
Acetald
(PI*)
-999
0.50
1.16
0.98
0.99
1.48
1.02
1.26
0.80
0.83
1.10
0.53
1.02
0.48
14.20
0.97
1.22
0.96
1.21
1.79
1.03
2.85
2.68
0.70
1.34
1.30
1.48
1.08
Acetald
Purity
0.979
0.978
0.994
0.969
0.815
0.969
0.986
0.958
0.974
0.999
0.977
Acetald
Purity
0.994
Acetone |
AfftmiK
(PI*)
0.37
0.972 | -999
0.943
0.997
0.965
0.989
0.932
0.996
0.992
0.983
-999
-999
-999
0.89
-999
0.45
-999
0.62
0.998 | 0.72
0.963 0.979 | -999
0.992 0.992
0.991
0.993
0.990
0.992
0.993
0.992
0.993
0.992
0.994
0.992
0.992
0.991
0.993
0.992
0.992
0.993
0.993
0.990
0.986
0.993
0.991
0.990
0.987
0.995
0.993
1.01
-999
-999
0.62
1.97
1.06
0.95
1.24
0.56
0.65
0.39
0.992 I 0.40
0.992
1.73
0.992 1 0.51
0.993
0.993
1.84
1.05
A/-*4rm>
(P!*)
Acetone
Purity
-999 0.987
0.69
0.57
-999
-999
0.65
-999
0.49
0.43
0.71
0.81
1.08
1.06
0.44
10.79
0.57
2.10
1.20
1.11
1.63
' 0.42
1.80
0.49
0.46
2.15
0.70
2.09
1.21
0.907
0.934
0.896
0.619
0.862
0.916
0.856
0.900
0.592
0.971
0.883
0.978
0.969
0.000
0.975
0.981
0.969
0.966
0.962
0.980
0.801
0.796
0.943
0.972
0.979
0.974
0.968
Acetone*
Purity j
0.930
0.942 |
0.913 |
0.788 |
0.813 1
0.988
0.588
0.947
0.885 1
0.929 1
0.960 i
0.884 1
0.947 1
0.983 |
0.984
0.964
0.967
0.975
0.971
0.969
0.965
0.963
0.915
0.894
0.976
0.980
0.974
0.971
"-999" indicates concentration below analytical detection limit.

-------
             TABLE C-6.  SUMMARY OF CONCENTRATION AND PURITY FOR PEFL
Sample
Date
10-Feb-90
22-Feb-90
12-Mar-90
24-Mar-90
OS-Apr-90
17-Apr-90
29-Apr-90
1 l-Mav-90
23-May-90
04-Jun-90
16-Jun-90
28-Jun-90
Week
Day
St
Th
M
St
Th
T
Sn
F
W
M
St
ID
Number
1158

Lot
46
1159 i 46
1 174 46
1186D I 46
1194
1206
1213
1225
1250
1257
1263
Th 1279
46
46
51
51
51
51
51
51
Formaldehyde
Tubel
(PP*>)
1.11
1.42
2.56
1.79
3.80
2.96
2.13
1.97
2.78
1.67
5.23
0.98
10-Jul-90 T 1298 51 3.41
16-Jul-90 M
22-Jul-90 Sn
28-Jul-90
03-Aup-90
09-Aug-90
15-Aug-90
21-Aug-90
27-Aug-90
02-Sep-90
08-Sep-90
14-Sep-90
20-Sep-90
1301 55 | 2.05
1313
St 1318
F
Th
W
T
M
Sn
St
F
Th
26-Sep-90 i W
02-Oct-90 1 T
08-Oct-90 M
14-Oct-90
20-Oct-90
Sn
| St
26-Oct-90 I F
1327
1330
1339
1349
1353
1364
1368
1381
1388
55 1 1.46
55
55
55
55
55
55
55
55
55
55
1402 55
4.57
3.56
4.17
4.38
2.66
1.64
2.65
3.43
1.68
2.52
3.68
1406 55 I 1.68
1415 55
1423
1431
1444
Ol-Nov-90 Th | 1448
07-Nov-90 W
51
55
51
55
1458 56
14-Nov-90 i W 1467
Ol-Dec-90 St
13-Dec-90 I Th
25-Dec-90 1 T
06-Jan-91 Sn
18-Jan-91 1 F
30-Jan-91 1 W
12-Feb-91 | T
23-Feb-91 1 St
1495
1500
1517
49
49
60
60
1527 | 60
1545D | 60
1564
1582
60
60
I 1601D I 62
1.66
15.15
2.36
1.62
Tube 2
(Ppb)
Tubel
Purity
0.71 0.792
Tube 2
Puritv
0.939
1.34 0.978 0.985
2.47 0.965 0.998
1.58 0.998
3.92 0.994
3.06 0.771
1.96
2.38
2.94
2.06
5.08
0.83
0.987
0.983
0.998
0.982
0.977
0.996
0.996
0.943
0.963
0.957
0.995
0.994 1 0.988
Acetaideayde
Tubel
0.67
-999
1.15
1.41
1.48
1.10
0.61
0.63
0.78
0.58
1.21
0.994 0.995 | -999
3.51 0.927 0.997
1.91 0.992 0.997
1.67
5.48
3.66
4.13
0.997 0.999
0.992 0.999
0.996 0.998
0.990
4.31 0.999
2.59
1.77
2.50
3.76
1.93
2.71
3.77
0.994
0.991
0.997
0.995
0.996
1.000
0.972
0.994
0.996
0.986
0.997
0.998
0.980
0.995
1.000 I 1.000
1.66 1.000 0.999
1.76
-999
2.38
1.000
1.000
0.999
1.000
0.000
1.000
1.72 0.999 0.999
2.21 2.30 1.000
2.04
2.14
1.57
1.44
0.87
1.09
1.24
2.17 1.000
2.30 1 0.999
1.000
0.43
0.51
-999
0.96
0.45
1.01
1.08
0.81
0.40
0.43
0.93
0.38
0.71
1.44
0.47
0.48
2.73
0.73
0.53
1.16
1.000 I 0.89
1.000
1.56 1.000 1.000
1.54 1.000
0.98
1.10
1.21
1.000
1.000
0.996
0.59 0.88 ! 0.999
2.87
0.88
3.04 0.999
1.000
1.000
1.000
0.999
0.984
0.999
1.23
0.92
0.84
0.64
0.47
0.70
0.39
1.78
0.88 0.998 1 0.999 I 0.69
Tube 2
(PP*>)
0.53
-999
0.96
1.72
1.55
1.19
0.88
0.52
0.76
0.58
1.02
Tubel
Purity
0.954
0.962
0.972
0.970
0.988
0.599
0.985
0.995
0.982
0.973
0.992
0.76 0.981
0.39 0.796
0.44 0.985
-999 0.994
1.58 | 0.901
0.54
1.14
1.27
0.66
0.51
-999
0.85
-999
0.74
1.48
0.995
0.986
0.991
0.879
0.964
0.991
0.974
0.946
0.970
0.992
Tube 2
Purity
Acetone i
Tubel
(ppfe)
0.985 I 1.22
Tube 2
(PP*)
1.03
Tubel
Puritv
0.929
Tube 2 I
Purity!
0.881 1
0.947 i 1.81 1.68 1 0.907 ( 0.875 1
0.682| 1.1.3 2.36
0.983 1 1.89
0.994
0.986
0.978 |
0.885
0.890
0.895
0.884
0.997
2.93
1.49
0.62
0.96
1.43
0.37
1.56
0.63
1.89
3.07
1.53
0.70
1.21
1.31
0.42
0.80
0.986
0.936
0.607
0.748 1
0.931 1
0.996 1
0.428 I 0.972 1
0.469
1.000
0.952
0.802
0.803
-999 0.946
0.988 | -999 -999 0.952
0.902 1 1 . 1 1
0.992 -999
0.954
0.990
0.975
0.997
0.986
0.946
0.980
0.990
0.960
2. (50
-999
2.69
1.76
0.41
0.44
0.46
0.72
-999
0.987 1 .27
0.993 3.33
0.940 1
0.875 I
0.824 |
0.817 !
0.667
0.930
0.927
0.95 0.946 | 0.901
-999 | 0.611
2.97
-999
2.34
1.34
-999
0.41
0.63
0.89
-999
1.64
3.45
0.78!
0.985 0.969
0.875
0.931
0.979
0.880
0.896
0.868
0.911
0.790
0.984
0.982
0.963
0.953
0.832
0.570 |
0.912 I
0.853 |
0.749 1
0.786 1
0.977 1
0.982 1
0.51 0.992 0.991 -999 | -999 0.883 | 0.878 I
0.53
-999
0.78
0.64
1.12
0.95
1.34
0.84
0.86
0.69
0.50
0.75
0.39
1.83
0.68
0.993
0.990
0.991
0.992
0.990
0.990
0.993
0.982
0.991
0.992
0.992
0.990
0.000
0.47
10.56
0.986 | 2.30
0.992
0.991
0.990
0.990
0.983
0.989
0.991
0.991
0.991 0.991
0.976
0.993
0.991
0.964
0.994
1.44
2.57
1.80
1.93
0.47
2.51
0.82
0.51
1.33
-999
1.95
0.51 0.957 | 0.966 1
-999
2.31
1.48
2.71
1.90
1.82
0.45
2.59
0.93
0.47
1.34
-999
0.982
0.975
0.974
0.978
0.980
0.977
0.982
0.980
0.975
0.965
0.974
0.909
2.05 0.977
0.992 1.30 1.31
0.000 I
0.967 I
0.982 1
0.980 1
0.981 j
1 0.976 1
0.977 j
0.979 |
0.970 I
0.956 1
0.974 |
0.906 1
0.977 1
0.972 j 0.976
"-999" indicates concentration below analytical detection limit (ADL).

-------
             TABLE C-7.  SUMMARY OF CONCENTRATION AND PURITY FOR PNTX
Sample
Date
12-Mar-90
Week
Day
M
24-Mar-90 | St
05-Apr-90
!7-Apr-90
29-Apr-90
ll-Mav-90
23-May-90
04-Jun-90
l6-Jun-90
28-Jun-90
10-Jul-90
22-Jul-90
03-Aug-90
15-Aug-90
27-Aug-90
08-Sep-90
20-Sep-90
02-Oct-90
14-Oct-90
26-Oct-90
07-Nov-90
30-Nov-90
Ol-Dec-90
13-Dcc-90
25-Dec-90
06-Jan-9 1
18-Jan-91
30-Jan-91
lt-Feb-91
23-Feb-91
Th
T
Sn
F
W
M
St
Th
T
Sn
F
W
M
St
Th
T
Sn
F
W
F
St
Th
T
Sn
F
W
M
St
ID
Number

Lot
1130 46
1183D
1192
1201
1212D
1224
1240
1256
1271
1281
46
46
46
51
51
51
51
51
51
1289 55
1305
1328
55
55
1335 55
1351 ^
1371
1392
1414
1420
1437
1454
1469
1482
1499
1521
1532
1543
1559
1576
1592
55
55
55
55
51
51
56
49
49
49
60
60
60
60
60
62
Formaldehyde
Tube I
(PF*)
2.64
Tube 2
(PP)
6.23
2.69 1 10.05
3.33
4.42
2.17
-999
4.67
3.18
3.08
5.52
3.23
2.19
2.87
5.63
8.80
4.34
3.77
2.84
5.02
5.68
4.09
4.87
5.07
2.58
4.70
3.80
7.32
2.21
7.13
4.43
3.63
9.19
6.00
-999
10.30
3.27
5.46
9.17
3.20
2.66
Tubel
Purity
0.980
0.991
0.992
0.998
0.991
0.910
0.995
0.997
0.993
0.997
0.994
Tubel
Purity
0.965
0.999
0.998
0.997
1.000
0.933
0.992
0.990
0.998
0.994
0.996
Acetaldcfayde
Tubel
(ppb)
3.77
3.90
1.55
2.89
0.68
-999
2.02
1.44
1.98
4.67
1.92
0.998 0.998 0.55
6.45 | 0.999 1.000
10.09
8.12
3.90
3.24
2.82
5.82
5.65
5.13
5.52
5.57
4.14
4.74
4.19
7.14
2.66
7.42
4.85
0.999
0.998
0.999
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
0.999
1.000
0.999
1.000
1.000
0.992
0.998
0.999
1.000
1.000
0.999
1.000
1.000
0.999
1.000
1.000
0.999
0.999
0.999
0.999
0.999
0.999 1.000
1.52
3.10
4.16
2.07
2.54
1.14
3.07
2.18
1.85
3.53
3.59
1.11
2.12
2.47
1.81
0.80
3.39
1.42
Tube 2
(PP>)
Tubel
Purity
Tube 2
Purity
Acetone
Tubel
(PI*)
4.69 0.988 0.994 1 0.99
4.80 0.889
2.12
3.08
1.00
-999
1.83
1.36
2.26
5.77
2.05
0.997
0.994
0.918
0.978
0.994
0.982
0.987
0.995
0.980 I 1.94
0.997
0.960
0.985
0.981
0.992
0.997
0.994
0.988
0.995 0.996
1.42
1.55
-999
-999
1.46
0.45
0.36
j_ 1.76
-999
Tube 2
(PP)
1.54
2.57
1.73
1.35
-999
-999
1.32
0.37
0.59
1.79
-999
0.67 0.994 0.986 -999 -999
1.90
3.58
3.60
1.86
2.49
1.14
3.45
2.14
2.21
4.22
3.88
1.22
2.11
2.49
1.73
0.78
3.72
1.58
0.997 0.999 -999
0.995
0.990
0.993
0.992
0.993
0.992
0.992
0.991
0.993
0.993
0.991
0.993
0.993
0.991
0.991
0.992
0.993
0.950
0.985
0.998
0.992
0.992
0.993
0.990
0.991
0.993
0.992
0.992
0.993
0.993
1.46
1.90
0.50
0.59
0.60
0.96
1.85
-999
-999
0.49
-999
0.81
0.46
0.992 0.87
0.992
0.992
0.992
1.04
2.80
1.54
0.41
1.52
1.63
0.48
0.58
0.58
1.13
2.00
1.51
0.44
-999
-999
0.84
0.44
0.89
0.84
2.92
1.49
Tubel
Purity
0.484
0.876
0.931
0.575
0.871
0.797
0.816
0.840
0.988
0.997
0.916
0.795
0.893
0.797
0.958
0.838
0.960
0.953
0.987
0.987
0.667
0.674
0.907
0.667
0.817
0.763
0.815
0.787
0.980
0.794
Tube 2
Purity
0.958 1
0.982 I
0.532 1
0.911 |
0.912 |
0.878 1
0.973
0.929
0.929
0.987 |
0.898 1
0.925 1
0.996 1
0.812 |
0.986 1
0.922
0.871
0.951
0.786
0.988
0.989
0.884
0.807
0.917
0.818
0.894
0.818
0.922
0.977
0.793
"-999" Indicates concentration below analytical detection limit (ADL).

-------
               TABLE C-8. SUMMARY OF CONCENTRATION AND PURITY FOR SAIL
Sample
Date
12-Mar-90 1
24-Mar-90 1
05-Apr-90
16-Apr-90
1 l-May-90 I
23-May-90 1
04-Jun-90
16-Jun-90
28-Jun-90
10-Jul-90
24-Jul-90
Week
Day
M
St
Th
M
F
W
M
St
Th
T
T
! 03-AU8-90 1 F
!4-Aug-90 | T
j 27-AUB-90
08-Sep-90
25-Seo-90
02-0ct-90
14-Oct-90
26-Oct-90
07-Nov-90
19-Nov-90
Ol-Dec-90
13-Dec-90
27-Dec-90
06-Jan-91
18-Jan-91
M
St
T
T
Sn
F
W
M
St
Th
Th
1 Sa
1 F
30-Jan-91 I W
12-Feb-91
23-Feb-91
1 T
1 St
ID
Number
1165 |
1177
1195
1208
1226 I
1246
1262
1269
1280
1294
1315

Lot
46
46
46
46
51
51
51
51
Formaldehyde
Tubel
(Ppb)
1.09
1.42
1.92
1.52
1.00
1.94
3.26
4.79
51 | 1.82
55
55
7.23
2.50
1329 I 55 1 3.44
L 1344 i 55
1354
1372
1401
1404
1419
1441
146 ID
1471
149 ID
1501
1523
55
55
55
55
51
51
56
49
49
49
60
{ 1535 1 60
1552D I 60
1565
1581
1604D
60
60
62
2.74
6.14
3.10
3.45
4.40
3.07
2.14
1.87
2.75
1.11
1.54
1.75
1.74
1.87
1.83
1.73
2.01
Tube 2
(PP>)
1.23 |
Tubel
Purity
Tube 2
Purity
0.983 1 0.956 |
1.62 1 0.984 I
2.40
1.25
0.93 j
0.974 1
0.990
0.970
1.99 | 0.991
2.83
1.39
1.94
7.22
2.45
0.988
0.998
Acetaldefayde
Tubel
(ppb)
0.50 |
0.999 I 1.30|
0.983
0.988
0.993
0.976
0.983
0.996
0.965 I 0.967
0.995
0.990
0.996 0.994
1.03
0.45
0.50
1.18
1.63 j
1.53 |
-999
1.95
0.82
0.49 1 0.999 0.995 | 0.77
2.88 I 0.992 0.998 ! 0.79
6.15
3.21
0.999 1.000
0.998 0.999
3.44 1 1.000
4.67
2.60
2.02
1.88
3.61
1.14
1.42
1.90
1.68
1.89
1.69
1.71
1.88
1.000
0.999
1.000
1.000
1.000
0.999 | 1.000
1.000
1.000
1.000
0.998
0.999
0.999
0.999
0.997
0.999
1. 000
0.999 1 1.000
1.000 | 0.999
0.999 1 1.000
1.000
0.999
1.000
1.000
1.18
1.22
1.04
1.47
1.10
1.40
1.03
1.55
0.71
0.96
1.26
Tube 2
(ppb)
0.53 |
Tubel
Purity
0.764 1
1.36 j 0.969 1
1.02 |
0.62J
0.70 |
0.93
1.68
-999
-999
1.83
0.79
0.971 j
0.985
0.990
0.992
0.995
0.999
0.972
0.987
Tube 2
Purity
Acetone ]
Tubel
(Ppb)
Tube 2
(ppb)
Tubel
Purity
0.987 1 0.44 | 0.63 1 0.909
0.993 |
1.79 | 1.26 | 0.961
0.965 | 1.51
0.927 j 1.28 |
0.994
0.987
0.88
1.36
0.944 1 0.87
0.923 1
0.880
0.74
0.59
0.976 I 0.94
0.994 1 0.983 1 1.85
0.52 1 0.961 | 0.980 1 0.94
0.74
1.05
0.97
1.10
1.59
0.98
1.15
1.06
2.03
1.03
0.99
1.36
1.25 | 1.22
0.92
1.02
0.86
0.95
0.90
1.02
0.89
0.95
0.965
0.986
0.993
0.993
0.992
0.991
0.992
0.989
0.991
0.989
0.989
0.993
0.993 | 0.85
0.983
0.983
0.992
0.992
0.990
0.991
0.990
0.992
0.991
0.976
0.993
0.990 I 0.990
| 0.992 ! 0.992
0.990
0.988
| 0.991
0.991
0.990
0.988
0.47
0.85
2.84
3.10
1.91
1.17
1.05
1.33
0.76
0.68
0.88
1.52 |
1.34 I
0.583
0.855
1.03 | 0.971
1.35 |
0.89
-999
0.51
1.29
1.39
1.17
1.08
0.64
0.86
2.98
3.20
1.90
1.20
1.02
1.62
0.73
0.74
0.97
| 0.93 0.91
| 1.13
1.05
0.85
1.10
0.989
0.911
0.976
0.745
0.919
0.793
0.983
0.907
0.863
0.998
0.977
0.983
0.977
0.964
0.965
0.977
0.969
0.980
0.975
Tube 21
Puritv 1
0.988 1
0.876 1
0.521 I
0.796 1
0.585 1
0.953 I
0.816 1
0.727 1
0.807
0.993
0.898
0.778
0.990
0.949
0.626
0.962
0.983 1
0.982 |
0.977 |
0.953 1
0.977 J
0.969 |
0.968 I
0.978 1
0.983 0.983 1
| 1.08 | 0.978
1.09
0.80
1.10
0.971
0.980
0.969
0.975 1
0.974 1
0.968 1
0.964 1
"-999" indicates concentration below analytical detection limit (ADL).

-------
             TABLE C-9.  SUMMARY OF CONCENTRATION AND PURITY FOR TLOH
Sample
Date
05-Apr-90
16-Apr-90
29-Apr-90
1 l-Mav-90
23-Mav-90
04-Jun-90
16-Jun-90
28-Jun-90
10-Jul-90
22-Jul-90
03-Aug-90
15-Aue-90
27-Auj-90
08-Sep-90
20-Sep-90
02-Oct-90
l4-Oct-90
26-Oct-90
07-Nov-90
19-Nov-90
Ol-Dec-90
13-Dec-90
Week
Day
Th
M
Sn
F
W
M
St
Th
T
Sn
F
W
M
St
Th
T
Sn
F
W
M
St
Th
ID
Number
1193
1205D
1214
1223
1243
1253
1264
1278
1293
1306

Lot
46
46
51
51
51
51
51
51
55
55
1326 | 55
1345
1355
1367
1387
1410
1425
1440
1455
1478D
1486
1507
Formaldehyde
Tube 1
(ppb)
1.75
1.22
1.57
1.21
1.87
0.75
4.21
2.05
3.45
1.52
3.92
55 I 4.91
55
55
55
55
51
51
56
49
49
49
5.52
2.58
1.19
2.64
1.99
2.06
1.65
3.48
1.94
2.10
Tube 2
(ppb)
2.01
1.63
1.48
1.23
1.58
0.83
2.12
1.98
3.46
1.60
4.46
4 89
5.33
2.14
1.51
2.70
2.13
1.72
1.54
3.41
2.16
1.97
Tube 1
Purity
0.921
0.910
0.972
0.987
0.992
0.916
0.994
0.955
0.986
0.995
0.997
0.999
1.000
0.998
0.998
1.000
1.000
0.997
1.000
1.000
1.000
1.000
Tube 2
Purity
0.992
0.971
0.984
0.958
0.981
0.904
0.981
0.975
0.952
0.968
0.999
0.999
1.000
0.987
0.992
1.000
1.000
1.000
1.000
0.999
0.998
1.000
Acetaldehyde
Tube 1
(ppb)
0.50
0.87
0.87
-999
1.04
-999
1.69
-999
1.04
-999
2.51
1.42
1.83
1.59
-999
1.39
-999
0.68
0.82
2.54
1.01
0.59
Tube 2
(ppb)
Tubel
Purity
0.90 I 0.925
1.14 1 0.965
0.62 1 0.937
-999 | 0.961
1.06
-999
0.76
-999
0.986
0.940
0.995
0.983
0.48 1 0.981
-999
0.987
2.79 1 0.976
1.35
1.31
0.73
0.984
Tube 2
Purity
0.940
0.933
0.957
0.907
0.985
0.958
0.964
0.974
0.990
0.816
0.990
0.960
0.980 | 0.984
0.958
0.55 | 0.976
1.33
-999
-999
0.80
2.17
1.12
-999
0.992
0.989
0.992
0.989
0.978
0.981
0.992
0.953
0.944
0.992
0.990
0.991
0.988
0.975
0.988
0.993
Acetone
Tube 1
(ppb)
1.43
1.221
1.55
0.89
2.26
0.58
1.39
0.71
2.25
1.23
2.92
3.46
0.80
1.43
1.45
2.16
2.14
1.33
1.20
1.52
1.23
0.95
Tube 2
(ppb)
1.47
1.19
1.30
0.76
1.82
0.52
0.68
0.67
1.90
1.45
3.39
3.99
Tubel
Purity
0.938
0.940
0.952
0.959
0.863
0.954
0.932
0.935
0.890
0.974
0.987
Tube 2
Purity
0.977 1
0.879 1
0.901 I
0.645
0.970
0.953
0.995
0.923
0.972
0.863
0.991
0.874 1 0.975
0.72 t 0.965
1.35
1.58
2.27
2.13
1.37
1.11
1.55
1.35
1.04
0.931
0.945
0.983
0.969
0.967
0.978
0.978
0.943
0.978
0.979
0.536
0.998
0.981
0.980
0.973
0.979
0.973
0.972
0.981
"-999" indicates concentration below analytical detection limit (ADL).

-------
             TABLE C-10.  SUMMARY OF CONCENTRATION AND PURITY FOR W1DC
Sample
Date
12-Mar-90
24-Mar-90
05-Apr-90
17-Apr-90
29-Apr-90
1 l-Mav-90
23-May-90
04-Jun-90
16-Jun-90
28-Jun-90
10-Jul-90
22-Jul-90
03-Aug-90
Week
Day
ID
Number
M 1171
St 1 179
Th
T
Sn
F
W
M
St
1188
1203D
1220
1233
1249
1258
1265
Th 1284
T
Sn
F
15-Aug-90 W
27-Aug-90 M
08-Sep-90
20-Sep-90
02-Oct-90
14-Oct-90
26-Oct-90
07-Nov-90
19-Nov-90
Ol-Dec-90
St
Th
T
Sn
F
W
M
St
13-Dec-90 | Th
25-Dec-90 i T
06-Jan-91 ! Sn
18-Jan-91
F
30-Jan-91 | W
ll-Feb-91 | M
23-Fcb-91
St
1295
1309
1322

Lot
46
Formaldehyde
Tube 1
(PP*>)
4.74
46 3.05
46
46
51
51
51
51
51
51
55
4.75
3.70
3.35
2.56
3.29
2.43
9.23
10.19
8.85
55 1 7.98
55 I 8.25
1340 55
1360
1379
1385
1411
1430
1442
1457
1480D
1485
55
55
55
55
51
51
56
49
49
1503 I 49
8.30
6.41
3.76
3.74
4.24
3.89
2.62
3.59
4.44
7.47
4.33
Tube 2
(ppb)
2.95
Tubel
Puritv
Tube 2
Purity
0.998 | 0.990
1.62 0.998 1 0.954
2.74
3.54
3.86
1.23
0.998
0.997
0.994
0.948
0.998 I 0.996
0.990 | 0.991
2.38 0.998 i 0.995
1.78 0.977 | 0.987
9.75 0.977
9.57
0.997
0.998
0.985
Acctaldefayde
Tubel
(ppb)
1.78
2.09
1.78
0.82
1.40
0.90
1.14
0.75
3.30
2.84
9.91 0.993 0.997 2.41
8.21
0.999 l.OOOl 1.97
[ 8.47 | 0.980 0.951 2.96
8.91
0.999 0.990
8.68 | 0.980
4.01
3.64
4.02
3.80
2.81
3.81
4.36
7.48
4.52
0.998
0.999
1.000
0.999
1.000
1.000
1.000
1.000
1.000
0.999
0.990
1.000
0.999
1.000
1.000
0.999
1.000
1.000 1.000
2.85
2.15
1.10
1.41
1.35
1.40
1.17
1.55
1.61
2.62
1.95
Tube 2
(PP>)
0.96
1.37
1.29
0.51
1.35
0.47
0.73
0.56
3.84
2.69
2.38
1.69
3.12
2.54
2.34
0.99
1.01
1.33
1.29
1.28
1.62
1.66
2.62
1.92
1520 60 3.84 4.07 0.999 1.000 1.72 1.79
1528 60 3.71
1550
1566
1588D
1595
60
60
60
62
2.11
5.37
2.98
3.74.
3.71 1.000 0.999 | 2.04 2.07
2.10 0.999
5.56
1.000
3.16 0.999
. 3.90
l.OOOJ 0.99
0.999
1.000
1.000 0.999
2.08
1.18
1.50
1.05
2.06
1.11
1.54
Tubel
Purity
Tube 2
Purity
Acetone j
Tubel
(ppb)
0.993 0.995 1 3. 09
0.929 0.992 1.83
0.923 0.991 I 1.90
0.983
0.997
0.973
0.993
0.963
0.995
0.997
0.996
0.968
0.997
0.974
0.982
0.983
0.988
0.981
0.987
2.13
1.48
1.29
1.22
1.19
2.4(5
2.30
0.972 1 1.67
Tube 2
(ppb)
2.69
1.15
1.16
2.38
1.70
0.73
1.02
0.77
3.40
3.05
Tubel
Purity
0.991
0.500
0.990
0.989
0.761
0.635
0.963
0.977
0.988
0.965
2.28 1 0.864
0.991 1.77 1.95
0.951 0.904 2.55 4.63
0.987
0.960
0.978
0.991
0.993
0.992
0.992
0.993
0.992
0.993
0.993
0.862 2.67 3.12
0.986 2.31
0.989
0.871
0.993
0.993
0.993
0.992
1.15
2.22
1.99
1.04
1.25
1.50
0.993 1.12
0.993 1.75
0.992
2.75
1.43
2.37
2.01
1.19
1.32
1.70
1.38
0.932
0.939
0.991
0.791
0.693
0.961
0.978
0.970
0.974
0.977
0.985
2.02 0.984
0.91 1.79
0.965
Tube 2 |
Purity |
0.662 1
0.981 |
0.998 |
0.626 1
0.949 1
0.925 I
0.967 1
0.952 1
0.832 I
0.954 1
0.995
0.963 1
0.959 1
0.859 1
0.945
0.975 1
0.875 I
0.977
0.973
0.980
0.977
0.968
0.985
0.977
0.992 0.993 1.12 1. 00 1 0.975 0.978
0.993 0.994 1.56 1.79 0.963
0.992 0.993 0.77 ) 0.85 i 0.971
0.992 0.992
1.64
0.992 0.992 0.74
1.85
0.982
0.85 0.970
0.992 0.994 1.16 1.13 0.972
0.975
0.966 1
0.975 1
0.972 1
0.971
"-999" indicates concentration below analytical detection.

-------
             TABLE C-ll.  SUMMARY OF CONCENTRATION AND PURITY FOR W1KS
Sample
Date
13-Mar-90
Week
Day
T
25-Mar-90 I Sn
05-Apr-90
17-Apr-90
29-Apr-90
1 l-Mav-90
23-Mav-90
04-Jun-90
16-Jun-90
28-Jun-90
10-Jul-90
Th
T
Sn
F
W
M
St
Th
T
22-Jul-90 [ Sn
03-Aug-90 I F
15-Aug-90
27-Aug-90
08-Sep-90
20-Sep-90
02-Oct-90
14-Oct-90
26-Oct-90
07-Nov-90
19-Nov-90
Ol-Dec-90
13-Dec-90
25-Dec-90
06-Jan-91
18-Jan-91
3
-------
             TABLE C-12.  SUMMARY OF CONCENTRATION AND PURITY FOR W2DC
Sample
Date
12-Mar-90 |
24-Mar-90 |
05-Apr-90 |
17-Apr-90
29-Apr-90
1 l-May-90 j
23-May-90
04-Jun-90
16-Jun-90
28-Jun-90
lO-Jul-90
Week
Day
M
St
Th |
T
Sn
F
W
M
St
ID
Number

Lot
1172 I 46
1181 |
1191
1199
1217D j
1234
1247
1259
46
46
46
51
51
51
51
1266 | 51
Th | 1283
T
22-Jul-90 | Sn
| OS-Aue-90 | F
l5-Aup-90 | W
27-Aup-90 j M
08-Sep-90
20-Sep-90
02-Oct-90
14-Oct-90
26-Oct-90
07-Nov-90
19-Nov-90
Ol-Dec-90
13-Dec-90
I 25-Dec-90
06-Jan-91
18-Jan-91
30-Jan-91
ll-Feb-91
23-Feb-91
St
Th
T
Sn
F
W
M
St
Th
T
| Sn
F
W
M
St
51
Formaldehyde | Acetaldehyde 1
Tubel
(PI*)
13.52 1
7.01
5.21
7.71
4.32
4.16
5.65
3.66
10.53
13.20
Tubel
(PI*)
Tubel
Purity
Tube 2
Purity
Tubel
(PI*)
Tube 2
(PI*)
6.55 | 1.000 I 0.999 j 6.54 3.23
3.42 1
0.990 I 0.998 | 3.55 1 1.44
7.04 i 0.996 I 0.990 | 2.07
4.85 1 0.995
4.55
2.74
3.87
0.993 |
0.983
0.996
2.24 | 0.978
10.19
13.43
0.974
0.993
0.987
0.988
0.991
0.996
0.962
0.997
0.994
1292 55 I 11.94 i 10.33 1 0.936 i 0.993
1312 1 55 I 9.02
1325 1 55 1 11.66
1336
55
1356 1 55
1378 | 55
1389
1408
1429
1443
1456
1473
1489D
1506
55
55
51
51
56
49
49
49
1518 | 60
1529D | 60
1551 I 60
1568D
1583
60
60
1599D | 62
9.77
8.14
5.53
6.14
7.44
5.36
7.36
8.69
10.29
9.33
9.08
3.32
1.71
1.36
1.56
1.64
3.96
3.93
3.84
8.21 I 1.000 1 1.000 I 2.36
12.89 I 0.997 I 1.000 | 3.99
11.77 | 0.999
9.39 I 1.000
5.58
6.33
7.73
6.04
8.35
9.28
10.57
9.47
10.67
0.997
1.000
1.000
0.999
0.999
1.000
1.000
1.000
0.999
1.000
0.998
1.000
1.000
0.999
1.000
1.000
1.000
0.957
0.998 | 0.999
j 9.48 i 9.78 I 0.999
| 6.07 | 6.38 | 1.000
1 9.27 i 9.46 | 0.999
9.99
4.46
| 7.49
10.18
4.82
j 1.000
I 0.999
7.57 | 1.000
3.23
2.71
1.71
2.40
1.96
2.33
1.55
1.96
2.88
3.15
2.37
| 0.999 ! 1.81
| 0.999 | 2.40
0.999
1.000
0.999
0.999
1.71
2.74
1.47
1.45
2.50
1.45
1.86
0.71
1.20
1.11
4.96
3.70
Tubel
Purfcy
0.994 |
Tube 2
Purity
Acetone )
Tubel
(PI*)
0.977 I 6.86
Tube 2
(ppb)
3.61 j
0.989 | 0.975 I 2.75 | 0.92
0.985 (
0.952
0.969
0.994
0.999
0.969
0.987
0.996
3.35 j 0.878
2.23
4.01
3.23
2.68
1.80
2.51
2.10
2.90
1.50
2.03
2.64
3.04
2.62
1.78
| 2.72
1.67
2.90
1.52
1.43
0.995
0.990
0.951
0.987
0.980
0.992
0.992
0.992
0.985
0.993
0.992
0.993
0.996
0.990
0.970
0.974
0.974
0.986
0.996
0.987
0.999
0.987
0.993
2.46
3.77
1.75
1.70
1.63
0.00
3.61
3.95
2.5*
1.77
2.02
2.67
0.91
1.53
0.91
3.94
5.06
2.00
Tubel
Purity
0.900
0.941 |
0.595
0.650
0.998
0.935
0.816
0.911
0.933
0.908
0.829
1.000 1 1.97 | 2.16 I 0.995
0.990 | 4.26
0.997 | 3.68
0.995
0.985
0.992
0.993
0.993
2.58
1.83
2.78
2.67
| 1.22
0.992 1 1.22
0.984
0.991
0.993
( 3.22
1.78
| 2.60
0.997 1 1.86
0.987 1 0.91
| 0.992 | 0.990 | 1.71
0.989
0.992
0.990
0.990
0.980| 1.17
0.993
0.993
0.978
) 3.45
I 1.00
0.90
5.72
2.87
2.63
1.89
3.02
2.77
1.50
1.37
3.53
2.17
2.57
2.27
1.10
Tube 2 j
Purity
0.994 1
0.566 1
0.908 1
0.995 1
0.493 |
0.903 1
0.798 1
0.945 I
0.915 1
0.884 1
0.971 I
0961 I
0.978 | 0.999 1
0.595
0.988
0.704
0.980
0.970
0.981
0.974
0.979
0.981
0.985
0.969
0.689 1
0.620 !
0.982 1
0.982 I
0.970 1
0.980 |
0.979 i
0.982 I
0.967 1
0.984 |
0.919 1
0.817 0.789 1
1.71 | 0.973
1.42
4.60
1.15
1 0.94
0.667
0.982
0.973
0.902
0.667
0.667
0.972
0.978
0.667
"-999" indicates concentration below analytical detection limit (ADD.

-------
                              TECHNICAL REPORT DATA
                        (Please read Instructions on the reverse before completing)
1. REPORT NO.
    EPA-450/4-91-001
                                                   3. RECIPIENT'S ACCESSION NO.
4. TITLE AND SUBTITLE
                                                   5. REPORT DATE
    1989 Urban Air Toxics Monitoring Program
    Carbonyl Results
                      July 1991
           6. PERFORMING ORGANIZATION CODE
7. AUTHOR(S)
                                                   8. PERFORMING ORGANIZATION REPORT NO.
    Radian Corporation
    Research Triangle Park, N.C.  27709
9. PERFORMING ORGANIZATION NAME AND ADDRESS


    U.S.  Environmental Protection  Agency
    Research Triangle Park, N.C. 27711
                                                   10. PROGRAM ELEMENT NO.
           11. CONTRACT/GRANT NO.

                      68-08-0014
12. SPONSORING AGENCY NAME AND ADDRESS
                                                   13. TYPE OF REPORT AND PERIOD COVERED
                                                   14. SPONSORING AGENCY CODE
15. SUPPLEMENTARY NOTES
16. ABSTRACT
         From Mar^h1990 through February 1991 samples of ambient  air
   were collected  at 12 sites in the eastern part of the U.S.  Every
   12  days, air was  integrated over  24-hour periods into passivated
   stainless steel canisters.  Simultaneously, air was drawn through
   cartridges containing dinitrophenylhydrazine  to collect carbonyl
   compounds.  The samples were analyzed at a central laboratory for
   a total of 37 halogenated and aromatic hydrocarbons,
   formaldehyde, acetaldehyde, and other oxygenated species.  The
   hydrocarbon species were analyzed by gas chromatography/multiple
   detectors and gas chromatography/mass spectrometry, while the
   carbonyl species  were analyzed by liquid chromatography. An
   extensive quality assurance program was carried on to secure  high
   quality data.   Complete data for  all the carbonyl samples are
   presented in this report.
17.
                            KEY WORDS AND DOCUMENT ANALYSIS
                DESCRIPTORS
                                        b.lDENTIFIERS/OPEN ENDED TERMS  C. COSATI Field/Group
   UATMP-9Q
   Toxic  Hydrocarbons
   Toxic  Species
   Carbonyl  Compounds
18. DISTRIBUTION STATEMENT

  Unlimited
19. SECURITY CLASS (This Report)
Unclassified
                                                               21. NO. OF PAGES
133
                                        20. SECURITY CLASS (This page)
                                        Unclassified
                                                               22. PRICE
EPA Form 2220-1 (Rev. 4-77)  PREVIOUS EDITION is OBSOLETE

-------

xvEPA
           United States
           Environmental Protection
           Agency
Office of Air Quality
Planning and Standards
Research Triangle Park NC 27711
EPA-450/4-91-025
July 1991
           Air
        1990 URBAN AIR TOXICS
         MONITORING PROGRAM
          CARBONYL RESULTS

-------
                             EPA-450/4-91-025
1990 URBAN AIR TOXICS
MONITORING PROGRAM
  CARBONYL RESULTS
               By
          Radian Corporation
      Research Triangle Park, NC 27709
        EPA Contract No. 68D80014

      EPA Project Officer: Neil J. Berg, Jr.
    Office Of Air Quality Planning And Standards
        Office Of Air And Radiation
     U. S. Environmental Protection Agency
       Research Triangle Park, NC 27711

             July 1991

-------
This report has been reviewed by the Office Of Air Quality Planning And Standards, U.  S.
Environmental Protection Agency, and has been approved for publication. Any mention of trade
names or commercial products is not intended to constitute endorsement or recommendation for use.
                                    EPA-450/4-91-025

-------
                               TABLE OF CONTENTS


                                                                            Page

      LIST OF FIGURES	v

      LIST OF TABLES	vii

      SYMBOLS AND ABBREVIATIONS  	  viii

1.0   SUMMARY AND CONCLUSIONS	1-1

2.0   INTRODUCTION	2-1

3.0   UATMP  FOR  1990	3-1

4.0   SAMPLING,  ANALYSIS,  AND  QUALITY  ASSURANCE PROCEDURES   	   4-1

      4.1    Sampling Equipment and  Procedures 	   4-1
      4.2    Analytical  Procedures  	   4-3
      4.3    Quality Assurance  Procedures   	   4-4
      4.4    Calibration  Procedures   	   4-4

             4.4.1 Daily  Quality  Control  Procedures  	   4-4
             4.4.2 Duplicate  Samples 	   4-4
             4.4.3 Trip  Blanks	4-6
             4.4.4 Precision	4-6
             4.4.5 Accuracy	4-6

5.0   RESULTS	5-1

      5.1    Analytical  Results  	   5-1
      5.2    Analysis Result  Statistics  	   5-1
      5.3    Analytical  Results Data	5-15

6.0   DATA ANALYSIS	6-1

      6.1    Introduction	6-1
      6.2    Summary Statistics  	   6-2
      6.3    Box  Plots	6-4
      6.4    Seasonal ity	6-4
      6.5    Intercarbonyl  Correlations  	  6-25
      6.6    Precision and  Percent Differences 	  6-25
      6.7    Audit Samples	6-33

7.0   CONCLUSIONS	7-1

8.0   REFERENCES	8-1
:S2O45/can.208f
CarDonvl 1990 Final Reoon                        ; ; 1

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                          TABLE OF CONTENTS  -  Continued


APPENDICES

       A      Site  Information  from  AIRS

       B      Summary  Statistics  for Cases 1 and  2 for All  Sites

       C      Analytical  Data Listing
 :52-045/can.208f
 Carbonyl 1990 Final Reoort                           1 V

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                                LIST OF FIGURES

                                                                           Page
3-1   1990 UATMP Carbonyl Data Flow	3-4
4-1   Urban Air Toxics Monitoring  Program  Canister Sampling System  ...  4-2
4-2   Carbonyl Field Data Sheet	4-5
5-1   Average Carbonyl Concentrations  - All  Sites	  .  5-2
5-2   Carbonyl Concentration  for Baton  Rouge,  Louisiana 	  5-3
5-3   Carbonyl Concentration  for Chicago,  Illinois  	  5-4
5-4   Carbonyl Concentration  for Camden, New Jersey 	  5-5
5-5   Carbonyl Concentration  for Houston,  Texas  	  5-6
5-6   Carbonyl Concentration  for Orlando,  Florida  	  5-7
5-7   Carbonyl Concentration  for Pensacola,  Florida 	  5-8
5-8   Carbonyl Concentration  for Port  Neches,  Texas 	  5-9
5-9   Carbonyl Concentration  for Sauget, Illinois  	 5-10
5-10  Carbonyl Concentration  for Toledo, Ohio  	 5-11
5-11  Carbonyl Concentration  for Washington, D.C.  - Site 1	5-12
5-12  Carbonyl Concentration  for Wichita,  Kansas   	 5-13
5-13  Carbonyl Concentration  for Washington, D.C.  - Site 2	5-14
6-1   Formaldehyde Box Plots  for Case  1	6-11
6-2   Acetaldehyde Box Plots  for Case  1	6-12
6-3   Acetone Box Plots for Case 1	6-13
6-4   Formaldehyde, Acetaldehyde,  and  Acetone  Monthly
            Concentrations -  All Sites	6-15
6-5   Formaldehyde Concentration Monthly Variation for 1990
            for Selected Sites - Group  1	6-16
6-6   Formaldehyde Concentration Monthly Variation for 1990
            for Selected Sites - Group  2	6-17
6-7   Formaldehyde Concentration Monthly Variation for 1990
            for Selected Sites - Group  3	6-18
:S2-045/can.20af
Caroonvi 1990 Final Heoort

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                          LIST OF FIGURES - Continued
                                                                           Page
6-8   Acetaldehyde Concentration Monthly Variation  for 1990
            for Selected Sites  - Group  1	5.19
5-9   Acetaldehyde Concentration Monthly Variation  for 1990
            for Selected Sites  - Group  2	5.20
6-10  Acetaldehyde Concentration Monthly Variation  for 1990
            for Selected Sites  - Group  3	6-21
6-11  Acetone Concentration Monthly  Variation  for 1990
            for Selected Sites  - Group  1	5.22
6-12  Acetone Concentration Monthly  Variation  for 1990
            for Selected Sites  - Group  2	6-23
6-13  Acetone Concentration Monthly  Variation  for 1990
            for Selected Sites  - Group  3	6-24
6-14  Formaldehyde/Acetaldehyde Correlation 	 6-27
6-15  Formaldehyde/Acetone Correlation   	 6-28
6-16  Acetaldehyde/Acetone Correlation   	 6-29
6-17  Quality Assurance -  Audit Results,  July 23, 1990 - Jan. 31,  1991   . 6-36
6-18  Quality Assurance -  Audit Results,  Mar.  31, 1991 - Apr. 24,  1991   . 6-37
 :=2-045/can.208f
 Carbonyi 1990 Final Heoort                         y -j

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                                 LIST OF TABLES


                                                                           Page

2-1    1990 UATMP  Target  Compounds  	  2-2

3-1    1990 Urban  Air  Toxics  Monitoring Program Sites  	  3-2

6-1    Probabilities for  a  Smaller  W Statistic for Distributions of the
            Mean  Concentrations  and Logs of the Mean Concentrations ...  6-3

6-2    Summary  Arithmetic and Lognormal Statistics for Mean Formaldehyde
            Concentrations:   Case  1	5.5

6-3    Summary  Arithmetic and Lognormal Statistics for Mean Formaldehyde
            Concentrations:   Case  2	6-6

6-4    Summary  Arithmetic and Lognormal Statistics for Mean Acetaldehyde
            Concentrations:   Case  1	5.7

6-5    Summary  Arithmetic and Lognormal Statistics for Mean Acetaldehyde
            Concentrations:   Case  2	6-8

6-6    Summary  Arithmetic and Lognormal Statistics for Mean Acetone
            Concentrations:   Case  1	5.9

6-7    Summary  Arithmetic and Lognormal Statistics for Mean Acetone
            Concentrations:   Case  2	6-10

6-8    Correlations and Covariances between  the Mean Concentrations of
            Formaldehyde,  Acetaldehyde,  and Acetone:  Case 1  	 6-26

6-9    Summary  of  Formaldehyde Precision  Statistics  	 6-30

6-10   Summary  of  Acetaldehyde Precision  Statistics  	 6-31

6-11   Summary  of  Acetone Precision Statistics 	 6-32

6-12   Spiked Quality  Assurance Cartridge Results  for
            1990  UATMP Monitoring  	 5.34
:S2-045/can.20ef
Caroonvi 1990 Final Reoort

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                           SYMBOLS AND ABBREVIATIONS
ADL         Analytical detection limit
AIRS        Atmospheric  Information Retrieval  System
APR         April
AREAL       Atmospheric  Research and  Exposure  Assessment Laboratory
AUG         August

BRLA        Baton Rouge,  LA; AIRS  No.  22-033-0006

C4IL        Chicago.  IL;  AIRS  No.  17-031-0060
CANJ        Camden, NJ;  AIRS No. 34-007-0003
COR         correlation  coefficient
COV         covariance

DC          District  of  Columbia
DEC         December
DIP         Difference;  Percent DIP  = (X2  -X1)/((X1 + X2)/2)*100
DNPH        2,4-dinitrophenylhydrazine

EPA         I).  S.  Environmental  Protection Agency

P           Friday
FID         Flame  ionization  detection
FL          .Florida
FEB         February

GC/MS       Gas chromatograph/mass spectrometry
GC/MD       Gas chromatograph/multidetector

H1TX        Houston,  TX; AIRS No.  48-201-1034
Hg          Mercury
HPLC        High pressure liquid chromatography

 ID           Radian assigned alphanumeric  identification
 IL           Illinois
 in.          inch

JAN         January
JUL         July
JUN         June

 KS           Kansas

 L           Liter
 LA          Louisiana
 LOG         natural  logarithm
 :52-045/can.208f
     i 1990 Final Reoort                        V i

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                         SYMBOLS  AND ABBREVIATIONS (Continued)
M
MAR
min.
mL
N
NC
NJ
nm
NMOC
NOV
OCT
OH
ORFL
PEFL
PID
PNTX
ppbv
QA
QAPP
f\ /*
QC
QAD
R
RTP
SAIL
SAS
SEP
Sn
St
STD
T
Th
TLOH
TX
U. S.
UATMP
W
W
W1DC
W1KS
W2DC
Monday
March
minute (60 seconds)
milliliter
number of cases, or sample size
North Carolina
New Jersey
nanometer
Nonmethane Organic Compound(s)
November
October
Ohio
Orlando, FL; AIRS No. 12-095-2002
Pensacola, FL; AIRS No. 12-033-0004
Photoionization detection
Port Neches, TX; AIRS No. 48-245-4007
parts per billion by volume
Qual ity Assurance
Quality Assurance Project Plan
Quality Control
Quality Assurance Division
regression coefficient
Research Triangle Park, NC
Sauget, IL; AIRS No. 17-163-1010
Statistical Analysis System
September
Sunday
Saturday
Standard Deviation
Tuesday
Thursday
Toledo, OH; AIRS No. 39-095-0081
Texas
United States of America
Urban Air Toxics Monitoring Program
Wednesday
Shapiro-Wilk W statistic, used in SAS software to indicate
normality of a distribution
Washington, DC; AIRS No. 11-001-0025
Wichita, KS; AIRS No. 20-173-0010
Washington, DC; AIRS No. 11-001-0039
252-045/can.208f
Caroonyi 1990 Final Heoort

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                         1.0  SUMMARY AND CONCLUSIONS

      This report summarizes the results of sampling ambient  air  for  selected
carbonyl  containing compounds in 12 urban centers in the contiguous United
States as part of the Urban Air Toxics Monitoring Program  (UATMP).
Formaldehyde, acetaldehyde, and acetone concentrations were measured  using
2,4-dinitrophenylhydrazine (DNPH)-coated silica cartridges to collect the
carbonyls for subsequent analysis.  Sampling and analysis  followed guidance
provided in U.S. Environmental Protection Agency (EPA) compendium method
TO-11. Formaldehyde concentrations ranged from 0.42 to 34.5 ppbv  with an
average concentration for  all sites of 4.2 ppbv.  Site average formaldehyde
concentrations ranged from 1.5 ppbv for Houston, TX  (H1TX) to 7.9 for
Washington, DC (W2DC).  Acetaldehyde concentrations ranged from 0.37  to
9.5 ppbv, averaging 1.7 ppbv over  all 1990 UATMP sites.  Site average
acetaldehyde concentrations ranged from 0.76 ppbv at Houston, TX  (H1TX) to
2.5 ppbv at Baton Rouge, LA (BRLA).  Acetone concentrations ranged  from 0.37
to 10.8 ppbv and averaged  1.8 ppbv over all sites.  Site average  acetone
concentrations ranged from 0.68  ppbv at Houston, TX  (H1TX) to 2.9 ppbv at
Chicago,  IL  (C4IL).
      The precision as measured  by the mean percent difference over  all sites
was near  12% for formaldehyde, near  13% for acetaldehyde,  and near  15% for
acetone.  At individual sites the  mean percent  differences ranged roughly  from
4 to  30%  for formaldehyde, from  7  to 30%  for acetaldehyde,  and from  8 to 23%
for acetone.
      Accuracy was measured as bias  from  audit  samples.  For  formaldehyde,  bias
ranged from  -45.1  to  10.6% and averaged  -4.6 percent.   For acetaldehyde, bias
ranged from  -41.7  to  100.0% and  averaged  -1.2  percent.   For  acetone,  bias
ranged from  -53.4  to  100.0% and  averaged  -4.3  percent.   The  average  percent
difference and biases reported  in  this  study  indicate  that the sampling and
analytical methodology  is  repeatable  and  valid.
      Concentration data for  formaldehyde,  acetaldehyde,  and  acetone appeared
to be distributed  approximately  lognormal  for  sites  in  the 1990 UATMP.
Average monthly  concentrations differed  from month  to  month  over all  sites  and
 :a2-045/can.208f
 :a.-aonyi 1990 Final Reoort                         1 - 1

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 from  site  to site.  Lowest average  monthly concentrations  appeared to be in
 May while  concentrations appeared to  peak in the fall months.
       Formaldehyde and acetaldehyde concentrations correlate  well  at all
 sites.   Little correlation exists between acetone and either  formaldehyde or
 acetaldehyde.
:S2-045/can.208f
CarOonvi 1990 Final Renort                         1 - 

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                               2.0   INTRODUCTION

      The U.S. EPA developed the UATMP Program to help state and local
agencies assess the nature and magnitude of the toxic compounds in the  air.
The UATMP sampler collects ambient air samples at urban sites in 6-liter  (L)
SUMMA-treated stainless steel canisters.  At the same time, through  a
separate heated sample line, ambient air samples for carbonyl compound
analysis are drawn in parallel through duplicate cartridges which trap  the
carbonyl compounds from the ambient air.
      The UATMP is a companion program to the Nonmethane Organic Compound
(NMOC) Monitoring Program which began in the summer of 1984.  The NMOC
Monitoring Program measures the total concentration of organic  compounds, with
the exception of methane, but does not speciate organics.  The  UATMP  speciates
38 toxic compounds listed in Table 2-1,  primarily aromatic hydrocarbons and
halocarbons.  UATMP ambient air samples  are collected in 6-L stainless  steel
canisters.
      The carbonyl cartridges collected  at the UATMP sites for  1990 were
extracted and analyzed by the Atmospheric Research and Exposure Assessment
Laboratory (AREAL) of the U.S. EPA at Research Triangle Park, North Carolina,
for formaldehyde, acetaldehyde, and acetone.  This report presents  the  data
summaries and other data assessments for the carbonyl samples collected during
the 1990 UATMP season.  The 1990 UATMP  season began  in March 1990  and ended  in
February 1991.  The air toxics compounds collected in canisters for the 1990
UATMP season  are reported separately.1-2
 C52-045/can.208f
     i 1990 Final fleoort                        ? - 1

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                                         Table  2-1
                              1990 UATMP  Target Compounds
               Canister Analvtes
                Cartridge Analvtes
                   Acetylene
                   Propylene
                 1,3-Butadiene
                 Vinyl chloride
                Chloromethane
                 Chloroethane
                Bromomethane
               Methylene chloride
            trans- 1,2-Dichloroethylene
               1,1-Dichloroethane
                  Chloroprene
              Bromochloromechane
                   Chloroform
              1,1,1-Trichloroethane
              Carbon tetrachloride
               1,2-Dichloroethane
                    Benzene
                Trichloroethylene
               1,2-Dichloropropane
             Bromodichloromethane
            trans-1,3-Dichloropropylene
                    Toluene
                    n-Octane
             cis-l,3-Dichloropropyiene
               1,1,2-Trichloroethane
               Tetrachloroethylene
             Dibromochloromethane
                 Chlorobenzene
                   Ethylbenzene
                   ra/p-Xylene
                     Styrene
                    o-Xylene
                   Bromoform
             1,1,2,2-Tetrachloroethane
                m-Dichlorobenzene
                p-Dichlorobenzene
                o-Dichlorobenzene
                  Formaldehyde
                  Acetaldehyde
                     Acetone
:32-045/can.208(
Cjroonvi 1990 Final Reoort
2-2

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                               3.0   UATMP  FOR 1990

       Brief program descriptions for the air toxics and carbonyl portions of
 the UATMP are given in this section.  Both the air toxics and carbonyl
 programs collected 24-hour integrated ambient air samples on a once every
 12-day schedule beginning the week of March 12, 1990.  Sampling for the  1990
 UATMP was completed on February 23, 1991.
       Whole-air ambient air samples were collected in 6-L SUMMA-treated
 stainless steel canisters and on DNPH-treated cartridges at 12 sites shown in
 Table 3-1.   The table also gives Radian site codes, Aerometric Information
 Retrieval System (AIRS) Numbers, and EPA Regions.   Additional  description of
 the sites from the AIRS data base are given in Appendix A.
       Carbonyl  samples were taken simultaneously with all  the UATMP canister
 samples.   Duplicate cartridges were installed in parallel  in a separate heated
 sample probe.   Ambient air was drawn through the carbonyl  cartridges for
 24  hours  at a constant flow rate.   The flow rate,  which is  in  the range of 600
 to  1200 mL/min.,  is measured at each site by the site operator before and
 after taking each sample.   Carbonyl  cartridges are filled with DNPH-coated
 silica which reacts with carbonyls  in ambient air, trapping them in the
 cartridge.
       Ozone was removed from ambient air  collected in the  1990 program through
 the  use of  an  ozone denuder.   This  ozone  denuder was  added  to  the sampling
 system after the  heated probe  to eliminate  ozone,  which is  an  interferant with
 the  DNPH.   The  use  of  an ozone denuder in the sampling system  resulted in
 higher reported formaldehyde  concentrations.
       The removal  efficiency  of each ozone  denuder was verified  prior  to,  and
 at the completion  of,  the  field  sampling.   The  removal  efficiency of all  ozone
 denuders  was measured  at >  99.9% using  120  ppb  ozone  test mixture.   In
 conjunction  with  the 1990 UATMP  program,  a  comparison  of ozone scrubbed  and
 unscrubbed  DNPH cartridges  was  conducted  and  are reported elsewhere.3
       Three  laboratories  are  involved  in  the  carbonyl  cartridge  preparation,
 distribution and  analysis.  An  independent  EPA  contractor prepares  carbonyl
;=2-045/can.208f
CarOonvi 1990 Final Heoort
                                      3-1

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          II
          III

          IV

          V


          VI


          VII
                                       Table  3-1

                  1990  Urban  Air Toxics Monitoring Program  Sites

City
Camden, NJ
Washington, DC
Washington, DC
Orlando, FL
Pensacola, FL
Chicago, IL
Sauget, IL
Toledo, OH
Houston, TX
Baton Rouge, LA
Port Neches, TX
Wichita, KS
Radian
Site Code
CANJ
W1DC
W2DC
ORFL
PEFL
C4IL
SAIL
TLOH
H1TX
BRLA
PNTX
W1KS
AIRS
Number
34-007-0003
11-001-0025
11-001-0039
12-095-2002
12-033-0004
17-031-0060
17-163-1010
39-095-0081
48-201-1034
22-033-0006
48-245-4007
20-173-0010
:52-045/can.208f
^roonyl 1990 Final Reoon
3-2

-------
 sampling cartridges in batches.  The Radian RTF  laboratory obtained the
 prepared cartridges for distribution in the shipping  boxes containing the
 canisters that are sent to the UATMP sites, along with  the carbonyl field data
 sheet.   Radian coordinates the distribution of the  carbonyl  sample cartridges,
 and custody records to the U.S. EPA AREAL for analysis.   EPA's AREAL extracts
 samples from the cartridges and analyzes these extracts  for target compounds.
 Radian  Corporation reviews the analytical results,  summarizes  the data, and is
 responsible for semi-annual and annual  result summaries,  which are distributed
 to EPA  and participating agencies.  Figure 3-1 shows  the  carbonyl sample and
 data flow for the 1990 UATMP.
:52-045/cah.208f
Caroonyi 1990 F,na! fleoort                        3 _ 7

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                                                      EPA Contractor Praoo*
                                                       AJdahyaa CarUidQB*
                                                           Lot of 300


                                                        Radan Oaftfeudon
                                                        ofCarMgMwth
               Radan-PPK

             Calcutta flow Rate
                Tranefar to       	   Coaacoan

             LOTUSr                                     !  ^Fflini
               Tf
             wh LOTUS

                taS>A(A8EAL)
                 AAEALVtnfy
                                                                                     Straw
                                                                                          Action
                                                                                         Radan
                           of
               Radan
p  ^TLT0^      1	S	OAQPS.
For Ocfcata PraeaMon
                                                                          Radan
                                                                         FtnatRaport
   NOI    Rfar UhasnanM      |cKJ
         OataPoktttoAREAL     1
                                           Olatrtuta
                                           ToRadonai
                                         Stata, and Local
                                            Contacts
                      Figure  3-1.   1990  UATMP Carbonyl  Data Flow
-35.C3n iCSf
scnvi 1990 F-nai fleoon                                3 " 4

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          4.0  SAMPLING, ANALYSIS, AND QUALITY ASSURANCE  PROCEDURES

      Sampling and analysis procedures for the carbonyl samples, along with
the quality assurance procedures used to quantify data quality are  described
in this section.   Implementing the UATMP involved Radian personnel  installing
the sampling equipment for the canister and the carbonyl samples, training
site personnel to operate the equipment properly, observing all the quality
assurance procedures necessary to ensure the integrity of the sample, and
providing appropriate documentation.   The site operators' task involved
recognizing problems with sampling equipment and procedures, and  notifying
Radian personnel  at Research Triangle Park so that appropriate corrective
action might be taken.
4.1   SAMPLING EQUIPMENT AND PROCEDURES
      A schematic diagram of the UATMP sampler is shown in  Figure 4-1. The
sampler consists of two subsystems,  the VOC canister  and  the carbonyl
cartridge. Each subsystem collects a discrete sample  through use of a common
control system. Each sampler subsystem has separate atmospheric  inlet.   The
ambient air is introduced through an  inverted glass funnel  and heated
stainless steel probe. The heated probe was maintained  at 150F  to  prevent
moisture condensation. The carbonyl  cartridges are mounted  in parallel,  so
that the carbonyl samples are collected in duplicate  during each sampling
episode. The carbonyl cartridge  is a commerically available (Waters Co.)
silica gel Sep-pak cartridge which  is coated with DNPH.  The cartridges  are
prepared in batches by the laboratory and stored under  refrigeration  until
shipped to the field.
      The carbonyl  cartridges are installed in the sample line  several days
ahead of the scheduled sample collection. The collection  frequency  was planned
once every 12 days  (30 per year).  A  24-hour  sample collection  period was
utilizied for both  the canister  and  cartridge samples.  The carbonyl  probe was
purged and heated prior to sample collection  period.   Each  carbonyl cartridge
has a unique serial number which  is  recorded  on  the custody records.   In
:52O45/can.208f
Z-irQonyi 1990 Final fleoort                        4-1

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o

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-------
 addition to the carbonyl  cartridges installed in the sample line, a third
 cartridge is sent along in the shipment box as a trip blank.  The trip-blank
 cartridge is not exposed  to air at any time  during the shipment or sampling
 periods.  The trip-blank  cartridges were analyzed for formaldehyde,
 acetaldehyde, and acetone at the same time the sample cartridges were
 analyzed.  All  trip blanks were analyzed and the results were substracted in
 those  instances where the analytical  result was above the analytical detection
 limit  (ADL).
       The flow rate through each sample cartridge was measured before and
 after  each collection period by the site operator.  The flow rate was measured
 with a calibrated rotameter and recorded on a preformatted data sheet. The
 volume of ambient air sampled through each cartridge was calculated in the
 laboratory based on the field-recorded flow rate measurements.
 4.2    ANALYTICAL PROCEDURES
       The analytical  procedures for carbonyls is given below.   Sample
 preparation and analyses  are performed at the AREAL by EPA personnel.   A
 sample cartridge is removed from its  shipping vial  and attached to the end of
 a  10-mL polypropylene syringe.   Six-mill il iters of acetonitrile are added to
 the syringe and allowed to drain through the cartridge into the graduated
 centrifuge tube.   After the drainage  has stopped the volume of extract is made
 up to  5-mL with acetonitrile and mixed.   A portion  of this solution is
 transferred to  a 4-mL sample vial  fitted with a Teflon-! ined, self-sealing
 septum and stored in  a refrigerator until  used.   The TO-11 high performance
 liquid chromatography (HPLC)  column and  elution solvents used  for analysis
 were modified to decrease  analysis  time.
       The chromatographic  separation  is  done using  a 10-cm x 0.46-cm CIS
 analytical  column with  3-micron  particle  size preceded by  a 5-cm x 0.46  cm CIS
 guard  column  containing 5-micron  particles.   Typically,   20-mL samples are
 injected  with an  automatic  sample  injector.   The  isocratic elution is  carried
 out with  an  aqueous solution  of  50% H20, 35%  acetonitrile,  15% tetrahydrofuran
 at 2.5  mL/min.   Detector signals  from  a  programmable multiwavelength detector
 are collected for 10  minutes  at  220,  254,  330,  and  360 nanometers  (nm).   Any
 residual  sample  is  eluted  from  the  column  in  three  minutes  with  100%
 acetonitrile.
       The  relevant  chromatographic  peaks determined  by acceptable  retention
 times  are  integrated  and the  concentrations  calculated  using calibration
;32-045/can.208f
Carbonvi 1990 Final Reoort

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curves from standards analyzed the same day as the samples.  The 360-nm  signal
is used for this purpose.  Other wavelengths are used to compute signal  purity
by comparing the signal at these wavelengths for standards to the  signal  for
each sample.  Detection limits are determined by a one-sided tolerance
interval around the repeatability of the lowest standard.  This procedure was
modified based on experience with the samples.  The analysis modifications
optimized sample throughput for analysis of formaldehyde, acetaldehyde,  and
acetone.  Some other species may coelute with these target compounds  using
this HPLC column and isocratic elution approach.
      The aldehyde species reported are formaldehyde and acetaldehyde.
Acetone, a ketone, is also reported.  All results were reported to  Radian  in
parts per billion by volume (ppbv) from the EPA AREAL laboratory via  floppy
disk.  All reported analyses were identified by the unique cartridge  numbers.
4.3   QUALITY ASSURANCE PROCEDURES
      Quality assurance procedures relative to calibration data for acetone,
formaldehyde, and acetaldehyde are discussed below.  Daily quality  control
procedures are also discussed.  Sampling and analysis precision was determined
from the analysis of duplicate field samples.  Sample custody records were
maintained throughout the program. Figure 4-2 shows the multiple page field
data and custody sheet used for the carbonyl cartridges.
4.4. CALIBRATION PROCEDURES
      The calibration procedures used for this study followed AREAL standard
operating procedures.
4-4.1  Daily Quality Control Procedures
      Daily calibration checks were used to ensure that the analytical
procedures were in control.  Carbonyl samples were analyzed in batches of 75
to 100 cartridges throughout the year.  Independently prepared audit  samples
were analyzed with several batches of field samples.  Daily QC checks were
performed each day that analyses were conducted.
4.4.2  Duplicate Sample*
      Duplicate field cartridges were installed in parallel in the  sample
probe for each sampling episode, as shown in Figure 4-1.  The paired  average
of the analyses of these duplicate cartridges was used as the average sample
concentration in this report.  If one of the field duplicates was  broken  or
:=2-045/cafi.20Bf
:aroonvi 1990 Final fleoort                        4-4

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RADIAN
         URBAN TOXICS MONITORING PROGRAM
                         Aldehyde Data Sheet
 City
 SAROAD No.	A05
                      Sample Date
                      Sampler No.
       Cartridge
       Tube No.
        Lot No.

 Rotameter No.
Port A (red)
Port B (green)
(blank)
 Rotameter Reading'.
       . (before)
 Rotameter Reading'	/	(after)
 Sampling Time/Duration 	(hours)
 Sampling Volume-1	(liters)
 Average Ambient Temperature 	
 Average Barometric Pressure 	
 Site Operator 	
 Comments/Remarks
     Flow Rate3
       Before
        After
       Average
 .(C'or F-)
 LPM
                 . ;mm Hg)
                                                Q.
                                                O
                                                O
C
O
O
JD
a
en
tfl
  ' Rotameter reading center of black ball.
  2 Calculated from calibration curve by the laboratory.
  3 Calculated by laboratory.
                    Figure 4-2.  Carbonyl Field Data Sheet
                                                 3
                                                 *^
                                                 a
  :*-045/can <.CSf
  -roonvi 1990 Final Heoon
             4-5

-------
otherwise declared invalid, the analysis of the remaining cartridge was used
as the reported sample concentration.  Likewise, if one of the duplicates
showed a concentration above the detection limit and the other duplicate
reported a concentration below the detection limit, the concentration above
the detection limit was reported as the sample concentration.
4.4.3  Trip Blanks
      For each pair of carbonyl samples, a trip-blank cartridge was  included
in the field site shipment.  The blank consisted of a regular DNPH-cartridge
with caps, identical to the sample cartridges.  Each cartridge had a  unique
serial number for identification purposes.  The blank cartridge accompanies
the duplicate sample cartridges on the trip to and from the  site, without
removal  of the caps on each end of the cartridge.  All trip-blank cartridges
were analyzed.   If the concentration of an analyte on the  sample blank  was
measured to be above the detection limit,  the  concentrations of the  duplicate
samples  were corrected for the  blank concentration.
4.4.4  Precision
       Precision  was measured  as the  average standard deviation  of  the paired
duplicate samples.  The  relation  between  precision  and mean  concentration, and
between  absolute percent difference  and mean  concentration were  investigated.
4.4.5  Accuracy
       Accuracy was  determined by  analyzing audit  samples  prepared  by the
Quality  Assurance Division (QAD)  of  AREAL.  The audit  samples contained either
formaldehyde,  acetaldehyde, or acetone,  some  combination  of  the  compounds, or
none  of  the  compounds.
 :52-045/can.208f
 laroonvi 1SSO Final Heoort                        4-6

-------
                                    5.0 RESULTS
  5.1    ANALYTICAL RESULTS
        Analytical  results are presented in Appendices B and C.  Concentrations
  of formaldehyde,  acetaldehyde,  and acetone are reported in ppbv, and are
  tabulated  by  site.
        Figure  5-1  shows  the  annual  average of the mean concentrations for the
  three  compounds  at  each site.   Figures 5-2 through 5-13 show the mean
  concentrations for  the  three compounds by sample period.   Each of the figures
  represents a  separate site.   For example,  Figure 5-2 shows the mean
  concentrations for  each sample  collection  period at  site  BRLA.  Data for each
  sampling period  are shown with  the numerical  data in Appendix B and C.
  5.2   ANALYSIS RESULT STATISTICS
       Appendix B gives  rudimentary statistics  for the carbonyl  analyses    Each
  site is summarized  in two tables in Appendix  B that  correspond to the two data
  analysis cases discussed in  the following  section.   Tables  B-l  and  B-2  list
  statistics for BRLA, for example.
       In Table B-l for  BRLA, the first column gives,  in compressed  format  the
 date  on which the sample was taken.  For the first sample  taken  at  BRLA   for
 example, the  sample date is given  as "10-JUL-90," which indicates that the
 sample was taken  on July 10, 1990.   The second column  in the  table  shows  the
 day of the week for the  sample date.  Weekday Sn, refers to Sunday; M to
 Monday;  T to  Tuesday;  etc.  ID Numbers listed in the tables of Appendix B  refer
 to the Radian  ID  Numbers for the UATMP samples collected on the sample date
 The ID Numbers carrying  a "D after the first four digits  refers to a UATMP
 sample that was taken  in duplicate.
       Overall  averages are  given for each  mean concentration,  percent
 difference, and standard deviation  column  in the  tables of Appendix B  These
 overall  averages  may be  considered  to  be annual  averages,  since the time
 interval of the study was approximately one year
:52-045/cati.208f
CarOonyi 1990 Final Reoort
                                      5-1

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5.3   ANALYTICAL RESULTS DATA
      Appendix C lists all of the analytical  data  received from the EPA
laboratory.  In addition to sample date, week day,  and ID NO.,  the tables show
"Lot," which identifies the lot number  of  the carbonyl cartridge used in
obtaining the sample.  The carbonyl  cartridges were fabricated in lots of
about 300 cartridges per lot, and each  lot was given a Lot Number in order to
identify it uniquely.
      Each table in Appendix C contains the analytical results from the
indicated site.  Concentration and purity  data are listed for (duplicate)
cartridge 1, and (duplicate) cartridge  2.   The choice of which duplicate was
designated as cartridge 1, and which was cartridge 2, was completely
arbitrary.
 :52-045/cah.20Bf
 Cardonyi 1990 F.nal Heoon                        5 - 1 5

-------
                               6.0 DATA ANALYSIS

 5.1    INTRODUCTION
       The  UATMP  carbony]  data summaries  were prepared for two separate,
 parallel cases to  illustrate  how summary statistics and analysis results may
 differ according to  the method by which  mean concentrations are determined.
 Cartridge  concentrations  listed  as zero  were set  to missing and excluded from
 further calculations in both  cases.   When both  cartridge concentrations were
 reported by  the  analytical  laboratory below the analytical  detection limit
 (ADL),  the mean  concentration was set to missing  in both cases.  In the first
 case,  hereafter  referred  to as Case  1,  a mean concentration was calculated
 from  the two cartridge  concentrations only when both concentrations were above
 the ADL.   When one cartridge  concentration was  above the ADL and the other
 cartridge  concentration was below the ADL, zero,  or missing, the cartridge
 concentration above  the ADL was  reported as the mean concentration.  For
 Case  2,  a  mean concentration  was calculated similar to  Case 1,  however, when
 one cartridge concentration was  above the ADL and the other cartridge
 concentration was  below the ADL,  a value of one-half the ADL was substituted
 for the  cartridge  concentration  below the ADL,  and a mean was then calculated
 from  the two cartridge  concentrations.   If the  other cartrdige  concentration
 was zero or  missing,  the  cartridge concentration  above  the  ADL  was reported as
 the mean concentration.   These two cases  were applied to all  three compounds.
 The ADL chosen for these  two  cases were  the same  for formaldehyde,
 acetaldehyde, and  acetone--0.36  ppbv.
       Several statistical summaries  and  plots were generated to  characterize
 the carbonyl data.   Summary statistics,  including  the means  and  standard
 deviations of the  normal  and  lognormal distributions; percentiles;  and
 confidence intervals were calculated  by  site  and  over all sites.   Box plots
 were constructed to  visually  represent the data distributions.   The question
 of seasonality in  the carbonyl data was  addressed  by  plotting monthly averages
 by site to enable  a  visual  determination  of potential monthly periodicity  of
 the concentration  data.    Intercarbonyl correlations  and  covariances  were
 calculated to demonstrate the  relationship  of the  compound concentrations.   A
measure of variability  and  a measure  of precision  were calculated  for each
-52-045/can.20ef
Caroonyi 199C Final fleoort                         g _ 1

-------
cartridge pair when both cartridge concentrations were above the ADL.
Finally, audit sample results were summarized.
6.2  SUMMARY STATISTICS
      Summary statistics were calculated by site and compound,  as well  as  over
all sites for each compound, for both the mean concentrations  and for  the
natural logarithms of the mean concentrations.  The natural logarithms  were
considered because air quality data are often more closely lognormally
distributed than normally distributed.  These two sets of summary statistics
were calculated for both Case 1 and Case 2, resulting in a total of  four sets
of summary statistics for each compound.
      The summary statistics were calculated and stored for use in summary
tables by the Statistical Analysis System (SAS)4 univariate procedure.  This
procedure provides a test statistic and corresponding probability for  the  null
hypothesis that the data examined are normally distributed.  For sample sizes
(N) less than or equal to 2000, which is the case for all samples in this
report, SAS provides the Shapiro-Wilk statistic, W, against which to test  the
null hypothesis.  For testing at the 95 percent confidence level, the null
hypothesis is accepted when the probability of a smaller W is  larger than
0.05.
      Table 6-1 lists the probabilities for a smaller W for the distributions
of the mean concentrations and for the distributions of the natural  logarithms
of the mean concentrations,  by compound, for Case 1 and Case 2  .  The site
code "ALL" refers to the summary over all  1990 field sites.  The sample sizes
for the other sites are still  only minimally sufficient to provide meaningful
probability distribution characterizations.  The probabilities  listed in Table
6-1 support the postulate that the data are more nearly lognormally
distributed than normally distributed.  The null hypothesis (normally
distributed data) is accepted for the distributions of the mean concentrations
only 14 times out of 39 for Case 1 and only 16 times out of 39  for Case 2.  On
the other hand,  the null  hypothesis is accepted 31  and 32 out of 39 times  for
both Case 1 and Case 2,  respectively, for the distributions of  the logarithms
of the mean concentrations,  i.e.,  supporting the postulate that the data are
lognormally distributed.
:52-045/can.208(
    i 1S90 Final Reoort                         6-2

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                                                                                 5-3

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      Tables 6-2,  6-3,  6-4,  6-5,  6-6,  and 6-7 list the summary statistics by
compound and site.   The mean and standard deviation of the normal
distributions are compared to the mean and standard deviation of the lognormal
distribution.5  Some percentiles  are also listed to depict the distribution of
the data.
6.3  BOX PLOTS
      Box plots were constructed to compare, visually, data distributions
between sites.  The box plots for the logarithms of the mean concentrations at
each site for Case  1 are shown in Figures 6-1, 6-2, and 6-3 for formaldehyde,
acetaldehyde, and acetone, respectively.  Box plots of the natural  logarithms
of the mean concentrations are shown, because, as demonstrated  in  Table  6-1,
the logarithms of the concentrations are normally distributed.
      The top and bottom of  the  box are  called hinges, and are  located  such
that the lower hinge represents  the 25th percentile and the upper  hinge
represents  the 75th percentile.  The median  is  represented by  a line  that
splits the  box into two pieces (not necessarily  in  the middle  of  the  box)  and
the mean is  indicated by a plus  ( + ).  The F-spread  is defined  as  the
difference  between  the  75th  and  25th percentiles.   "Whiskers"  extend  on  either
side of  the  box where data exist to a distance  of  up  to  1.5 times  the
F-spread.   Data  located between  1.5 and  3 times  the F-spread  are  indicated by
a  circle, while data values  more extreme than 3  times the F-spread are
indicated by an  asterisk  (*).
      The box plots appear approximately symmetrical  which  further supports
the  postulate that  the  data  are  lognormally distributed.
6.4  SEASONALITY
      Only  a crude  analysis  can  be  made  of  carbonyl  seasonality for this
report  because several  years'  data  are  needed for an  accurate representation,
and  the carbonyl  data  set  contains  just  one year's worth of data.  However,  by
plotting monthly arithmetic  mean concentrations by site and over all  sites,
and  by  examining the results from several  analysis of variance (ANOVA)  models,
the  1990 carbonyl data may be generally characterized.
 C52-045/can.208f
 :aroonvi 1990 Final fleoort                        6-4

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                                6-5

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