unnea states
Environmental Protection
Agency
Region 6
1201 Elm Street
Dallas, Texas 75270
EPA 906/9-80-003:
July 1980
Air
Performance Survey of
Ambient Air Monitors
EPA Region 6
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"This document is available to the public through the National
Technical Information Service, Springfield, Virginia 22151."
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EPA #906/9-80-003
PERFORMANCE SURVEY OF AMBIENT AIR MONITORS
EPA REGION 6
June 1980
Prepared by
G. F. Maier
F. K. Arey
Research Triangle Institute
Research Triangle Park, North Carolina 27709
for the
U. S. Environmental Protection Agency
1201 Elm Street, Suite 2800
Dallas, Texas 75270
Contract #68-06-0011
T. A. Matzke, Project Officer
"This report has been reviewed by T.A. Matzke, EPA, and ap-
proved for publication. Approval does not signify that the
contents necessarily reflect the views and policies of the
Environmental Protection Agency, nor does mention of trade
names or commercial products constitute endorsement or re-
commendation for use."
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CONTENTS
Page
ACKNOWLEDGMENTS iii
Section
1.0 INTRODUCTION AND SUMMARY 1
1.1 Introduction 1
1.2 Summary 2
2.0 PERFORMANCE AUDITS 3
2.1 General 3
2.2 Outline of Procedures 3
2.2.1 Total Suspended Particulate 3
2.2.2 Sulfur Dioxide 3
2.2.3 Ozone 4
2.2.4 Nitrogen Dioxide 5
2.2.5 Carbon Monoxide 5
2.2.6 Wind Speed, Wind Direction, Temperature 6
3.0 SUMMARY OF AUDIT RESULTS 7
4.0 SITE/SYSTEM EVALUATION 14
4.1 General 14
4.2 Outline of Procedures 14
4.2.1 Site Identification 14
4.2.2 Site Classification 14
4.2.3 Topography, Meteorology and Climatology 15
4.2.4 Obstructions and Sampling Information........ 15
4.2.5 Site Representativeness 15
5.0 RECOMMENDATION FOR USE OF SITE/SYSTEM EVALUATION FORMS... 16
APPENDIX A 17
APPENDIX B 26
ii
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ACKNOWLEDGMENTS
Work on this project was performed in the Environmental Measure-
ments Department, Systems and Measurements Division, of Research Tri-
angle Institute (RTI). Mr. C. E. Decker, Manager of the Environmental
Measurements Department, served as the Program Manager with overall
responsibility for the project. Mr. G. F. Maier, RTI Project Leader,
was responsible for coordination of assigned tasks.
Numerous individuals within RTI participated in the technical work
and contributed to the success of the program. Principal participants
for RTI were as follows: F. K. Arey, E. F. Peduto, Jr., W. J. King,
and W. D. Bach, Jr.
Ms. P. Schraufnagel of the Ambient Monitoring Section and Dr. T.A.
Matzke, Chief of the Region 6 Ambient Monitoring Section, served as the
EPA Project Officers. Ms. Schraufnagel and Dr. Matzke supplied
technical support and guidance throughout the program.
iii
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SECTION 1.0
INTRODUCTION AND SUMMARY
1.1 INTRODUCTION
The Research Triangle Institute (RTI), in accordance with provi-
sions of EPA contract number 68-06-0011, conducted performance surveys
of sixty-seven (67) ambient air monitoring sites in the states under
the jurisdiction of Region 6 of the Environmental Protection Agency.
This report contains a general discussion of all activities completed,
a summary of audit results, and an outline of the performance survey
procedures.
The performance surveys consisted of site evaluations, system
evaluations, and performance audits. Site report folders, two each for
Prevention of Significant Deterioration (PSD) sites and four each for
National Air Monitoring Station (NAMS) sites, were prepared for each
monitoring location and submitted to EPA. The site report folder in-
cluded: (1) a written report with statements about the site location,
performance audit results, data quality, and general comments; (2) a
set of field audit report sheets; (3) a site/system evaluation form;
and (4) a site map. The evaluation forms used for sites evaluated
prior to January 1980 were modified NAMS Hard Copy Information (NHCI)
Report Forms (see Appendix A). The evaluation forms used for the
twelve NAMS sites completed after January 1, 1980, were NAMS Hard Copy
Information Report and Site Evaluation Forms, dated October 31, 1979
and were supplied by the EPA Monitoring and Data Analysis Division,
Office of Air Quality Planning and Standards (see Appendix B).
The audit results are presented under one of two categories: (1)
PSD or privately funded monitoring sites; or (2) state or local moni-
toring sites. The state and local monitoring sites were either pro-
posed NAMS sites (prior to January 1, 1980) or active NAMS sites (after
January 1, 1980).
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1.2 SUMMARY
The sixty-seven ambient air monitoring sites were almost equally
divided between PSD sites and NAMS sites. The thirty-two (32) PSD
sites were located, by state, as follows:
Texas 19
Arkansas 0
Louisiana 9
Oklahoma 0
New Mexico 4
The thirty-five (35) NAMS sites were located, by state, as fol-
lows:
Texas 12
Arkansas 6
Louisiana 0
Oklahoma 12
New Mexico 5
The twelve NAMS sites in Texas were the only ones which were evaluated
after the NAMS activation date of January 1, 1980.
In general, the site reports presented earlier indicated that
state and local air monitoring stations (SLAMS) more often met or ex-
ceeded siting and performance audit criteria than did Prevention of
Significant Deterioration (PSD) monitoring sites. Problems at the PSD
sites were attributed to inexperienced personnel and/or incomplete
understanding of either calibration procedures or monitoring guide-
lines. A good understanding of and documentation of procedures was
evident at certain contractor's sites. The governmental agencies gen-
erally scored well on the performance audit section of the survey; how-
ever, a number of problems with sample inlet configuration or probe
placement were noted.
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SECTION 2.0
PERFORMANCE AUDITS
2.1 GENERAL
Multiple-point audits were conducted on gaseous analyzers, partic-
ulate samplers and meteorological sensors. The parameters audited
were: total suspended particulates, sulfur dioxide, ozone, nitric
oxide, nitrogen dioxide, total oxides of nitrogen, and carbon monoxide.
The meteorological parameters, wind speed, wind direction, and tempera-
ture, were audited when applicable.
2.2 OUTLINE OF PROCEDURES
2.2.1 Total Suspended Particulate
Reference: "Quality Assurance Handbook for Air Pollution Measure-
ment Systems, Vol. II"; Section 2.2.8, EPA-600/4-77-027a, May 1977.
Equipment: Reference Flow (ReF) Device (reference orifice with
five resistance plates).
Procedure:
1. Set up equipment.
2. Determine the audit flow rate, under either actual or standard
conditions of temperature and pressure, for the appropriate
resistance plates and the associated flow indicator reading.
3. Convert flow indicator reading to sampler flow rate using the
supplied calibration curve.
2.2.2 Sulfur Dioxide
Reference: "Reference and Equivalent Methods," Federal Register,
40 CFR 50.11, Appendix A.
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Equipment: Cylinder of SCK span gas (traceable to National Bu-
reau of Standards); dilution device; clean air supply (either cylinder
or scrubbed air).
Procedure:
1. Set up equipment.
2. Prepare known concentration of SC>2 by diluting the SC>2
from the cylinder with known volume of SC>2~free air. Record
concentration.
3. Allow monitor to sample mixture until its signal output sta-
bilizes.
4. Record output.
5. Repeat steps for 2, 3, and 4 other concentration levels.
2.2.3 Ozone
Reference: Federal Register Vol. 44, No. 28, February 8, 1979.
Equipment: Ozone generator, UV photometer transfer standard,
clean air supply.
Procedure:
1. Set up equipment.
2. Supply concentration of 0-j simultaneously to the UV photo-
meter transfer standard and to the analyzer being audited.
3. Allow monitor to sample concentration and signal output to
stabilize. Record the 0^ concentration as determined by the
photometer and the ozone analyzer.
4. Repeat steps 2 and 3 for other concentration levels.
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2.2.4 Total Oxides of Nitrogen
Reference: "Technical Assistance Document for the Chemilumines-
cent Measurement of Nitrogen Dioxide." EPA-600/4-75-003, April 1975.
Equipment: Dynamic dilution system, cylinder of NO span gas
(traceable to National Bureau of Standards SRM), Ozone generator, zero
air source (cylinder of zero air or clean air supply).
Procedure:
1. Set up equipment.
2. Allow monitor to sample zero air. Allow output to stabilize.
3. Adjust NO flow to generate an upper NO concentration. Allow
sampler signal output to stabilize. Record the NO and NOX
response.
4. Generate additional NO concentrations. Record the NO and
NOX responses.
5. Generate a NO concentration of about 90% of the NO range.
Using the NO and NOX calibration curves, measure and record
the 90% NO concentration as "NO original" and the 90% NOX
concentration as "NOX original."
Adjust the 0^ generator to produce, by gas phase titration
of NO, an N0£ concentration of about 80% of the N0£ range.
Allow the instrument response to stabilize, then determine
(from the calibration curves) the resultant NO and NOX re-
sponses as "NO remaiming" and "NOX remaining." Record the
stable N0£ response.
7. Repeat step 6 with various 0-j concentrations to obtain the
other desired N02 concentrations.
8. Determine the converter efficiency.
2.2.5 Carbon Monoxide
Reference: "Guidelines for Development of a Quality Assurance Pro-
gram; Reference Method for the Continuous Measurement of Carbon Monox-
ide in the Atmosphere," EPA-R4-73-028a, June 1973.
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Equipment: Cylinder of CD span gas (traceable to National Bureau
of Standards), dilution device, clean air supply.
Procedure:
1. Set up equipment.
2. Prepare known concentrations of CO by diluting the CO from
the cylinder with a known volume of CO-free air. Record the
concentration.
3. Allow the monitor to sample the mixture until its signal out-
put stabilizes. Record output.
4. Repeat steps 2 and 3 for other concentration levels.
2.2.6 Wind Speed, Wind Direction, and Temperature
Reference: RTI established procedures.
Equipment: Magnetic compass, hand-held anemometer, NBS-traceable
mercury thermometer.
Procedure:
1. Set up equipment, climb meteorological tower to be in close
proximity to actual sensors.
2. Make magnetic compass readings of the four cardinal points.
Manually orient the wind direction vane to agree with the com-
pass direction. Compare instrument's indicated wind direction
for each directional point with the magnetic compass reading
(after correction for magnetic declination).
3. Check wind speed zero reading by manually stopping the motion
of the sensor cups. Check wind speed by direct comparison of
sensor output with output of anemometer held and operated at
same height as wind speed sensor. Compare several readings
and average.
4. Set up mercury thermometer in close proximity to site temper-
ature sensor. Shield thermometer from direct sunlight and
hot surfaces, yet provide free air circulation. Compare read-
ings.
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SECTION 3.0
SUMMARY OF AUDIT RESULTS
Results of the performance audits of chemical and meteorological
sensors are summarized in this section in Table 1. More detailed in-
formation may be found in the site report folders submitted in earlier
reports.
Variation of site sensor response from the audit concentration or
reading is expressed in one of several ways. For the continuous am-
bient air pollutant analyzers (e.g., 03, NO, N02» NOX, CO, and
802) where multiple point audits were made, the variation is given as
the percentage difference from unity of the slope of the linear regres-
sion equation, relating the audit concentrations and the indicated
analyzer response concentrations. For example, in the case of
site analyzer concentration response,ppm
0.960(audit concentration,ppm)+0.000
The site analyzer's variation is listed as being
(0.960-1.000)100, or -4 percent.
In the case of the Total Suspended Particulate (TSP) audit of high vol-
ume samplers, the variation of the sampler's indicated flow rate from
the expected audit flow rate is expressed as the percentage difference
of the average of the several flow rates audited. Several sites, such
as station 10S, had more than one high volume sampler.
% difference=100[(sampler flowrate - audit flowrate)/(audit flowrate)]
This same way of expressing variation was used with certain of the
S02 monitors that had non-linear responses and where application of
the linear least squares regression equation would be inappropriate.
In these cases the percentage difference for each point was determined
and an average percentage difference was entered in the table. These
cases are marked with an asterisk (*).
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For wind speed, wind direction, and ambient temperature, the
variation is expressed simply as the signed difference between the
sensor response and the audit determination. The units are
meters/second (m/s), degrees compass, and degrees celsius, respec-
tively.
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TABLE 1. SUMMARY OF AUDIT RESULTS
Station
Identification
01S
02S
03S
04 S
05 S
06S
07 S
OSS
09 S
10S
IIS
12S
13S
14S
15S
°3
-26.2
____
13.5
9.8
Percent Deviation
NO
1I ._
1M __. . ,
-66.0
-64.8
-87.9
- 3.2
9.8
N02
___
___
41.4
54.3
106.2
- 4.9
4.4
N0x
- 3.5
___
14.1
14.1
13.4
- 2.7
-10.7
CO
___
___i
so2
-34.9
___
- 9.8
24.9
5.6
*-24.4
- 5.9
TSP
17.2
-16.3
- 1.5
- 1.5
- 0.3
5.9
- 8.3
- 6.0
- 7.3
- 7.4
2.0
- 3.4
- 3.5
2.1
- 4.7
- 0.9
10.1
- 0.5
- 9.2
- 7.0
- 9.7
Deviation
Wind
Speed
m/s
1.7
1.4
0.3
2.7
___
<+2.0
<+2.0
<+2.0
<+2.0
Wind
Direction
"Compass
-25
<+ 1
-35
<+ 1
-^M-_
<+ 5
<+ 5
<+ 5
<+ 5
Ambient
Temp.
°C
- 3.6
-12.4
- 4.8
- 1.2
___..
<+ 1.0
<+ 1.0
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TABLE 1. Continued
Station
Identification
16S
17S
18S
19S
20S
21S
22S
23S
24S
25S
Percent Deviation
°3
___
___
NO
8.5
22.0
11.6
13.6
18.7
12.7
14.4
N02
3.3
17.4
11.7
6.6
12.9
8.7
11.0
NOX
7.7
15.7
-10.9
13.9
23.6
14.5
14.4
CO
___
___
0.7
so2
*- 90.0
*-131.9
*- 98.8
*- 75.7
* 25.9
38.0
44.8
TSP
- 8.1
10.2
- 1.6
20.6
- 5.7
6.8
4.9
-6.7
-9.3
4.3
- 6.4
- 1.6
- 1.7
-10.5
- 1.8
- 2.5
-10.1
4.9
6.1
29.6
36.5
Deviation
Wind
Speed
m/s
.__
<+2.0
<+2.0
<+2.0
<+2.0
Wind
Direction
"Compass
___
<± 5
<+ 5
<+ 5
<± 5
Ambient
Temp.
°C
<+ 1.0
<+ 1.0
<+ 1.0
<+ 1.0
<+ 1.0
<+ 1.0
<+ 1.0
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TABLE 1. Continued
Station
Identification
26S
27S
28S
29S
30S
31S
32S
33S
34S
35S
36S
37S
38S
39S
40S
Percent Deviation
°3
___
27.0
- 4.8
- 7.0
...
- 4.5
37.6
NO
___
~
-14.8
N02
___
_
14.8
NOV
A.
___
_
CO
___
...
-3.2
-3.0
so2
_-_
_
- 46.8
- 28.4
_
TSP
44.5
- 0.6
- 5.8
- 4.9
4.8
0.8
- 1.3
- 6.2
- 6.4
- 4.3
- 4.5
...
Deviation
Wind
Speed
m/s
___
...
<+2.0
<+2.0
""""
Wind
Direction
"Compass
___
_
<± 5
<+ 5
-"
Ambient
Temp.
°C
_
...
<+ 1.0
~~
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TABLE 1. Continued
Station
Identification
41S
42S
43S
44S
45S
46S
47S
48S
49S
50S
51S
52S
53S
54S
55S
°3
_
15.1
1.7
4.2
- 0.9
NO
._.
- 2.9
22.6
~" *^ ~
Percent Deviation
N02
___
- 4.4
0.4
___
NOX
___
- 1.6
10.4
___
CO
___
~
-1.1
___
so2
- 8.1
~
- 23.4
- 25.2
110.0
- 16.8
___
TSP
- 2.1
-10.5
-13.8
1.8
2.3
3.0
1.4
-12.9
0.1
-12.0
- 3.9
- 1.8
-17.0
- 3.1
4.5
9.9
___
Deviation
Wind
Speed
m/s
...
<+1.0
<+1.0
--" ^
Wind
Direction
"Compass
___
-
-10
Ambient
Temp.
°C
___
...
<+1.0
<+_2.0
ro
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TABLE 1. Continued
Station
Identification
56S
57S
58S
59S
60S
61S
62S
63S
64S
65S
66S
67S
Percent Deviation
°3
___
8.0
-12.1
3.6
NO
>_ _
N02
___
NOx
___
CO
___
4.0
so2
___
TSP
- 1.2
14.1
14.5
-21.9
-14.2
- 1.1
7.4
- 0.1
- 2.5
- 7.2
- 2.4
Deviation
Wind
Speed
m/s
___
Wind
Direction
"Compass
___
_
Ambient
Temp.
°C
_____
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SECTION 4.0
SITE/SYSTEM EVALUATION
4.1 GENERAL
Site evaluations were performed for each site visited using the
modified NAMS Hard Copy Information Report Forms, and the NAMS Hard
Copy Information Report and Site Evaluation Forms shown in Appendices
A and B, respectively. These forms were used as a step-by-step guide
and check to consistently and collectively assess the numerous vari-
ables involved in evaluating the siting of the monitoring stations.
4.2 OUTLINE OF PROCEDURES
4.2.1 Site Identification
Some information in this section, such as the site location, was
entered by the auditor. More specific information, such as census
tract numbers, SAROAD site code, or state agency and local agency site
numbers, was obtained from the specific sources. United States
Geological Survey (USGS) maps (7.5 minute) were used to obtain UTM
coordinates for each site.
A set of eight directional color photographs were taken at each
site and were included in the earlier reports. An eight-millimeter
color movie was also made at each site. Based on these photographs
and movies, a detailed site map was produced for inclusion in each
site's audit report. A quarter-mile radius map, based on the USGS
maps, was also included as part of the site evaluation report.
4.2.2 Site Classification
The dominating source influences on the sites and land use around
the sites were determined by driving in the areas around the site and
14
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noting significant factors. A magnetic compass was used in this sur-
vey to establish the correct orientation.
The mobile source worksheets (see Appendix A) were completed by
observation and by use of a compass and tape measure. Average daily
traffic counts were obtained from the various departments of trans-
portation. Knowledge of the distance of the sites from these mobile
sources was critical to proper evaluation of the sites.
4.2.3 Topography, Meteorology and Climatology
The topographical character and its potential for influence were
determined by visual observation of the areas surrounding the sites
and from USGS topographical maps.
Meteorological and climatological surveys for the various sites
visited were supplied by meteorologists from RTI. Meteorological data
were supplied by various weather services.
4.2.4 Obstructions and Sampling Information
Possible probe and air flow obstructions were listed with respect
to size, distance, and directions from the probe. Detailed sampling
manifold and/or probe descriptions were given for each site. The tape
measure and magnetic compass were employed by the auditors to give
precise measurements of distance and direction.
Ambient analyzer and monitor information were included in the
site evaluation reports. Instrument manufacturer, model number, ser-
ial number, SAROAD method code, and sampling frequency were listed for
each site for every instrument utilized. The method of pollutant de-
tection employed by various analyzers, an essential piece of informa-
tion for planning and interpreting performance audits, was also re-
corded.
4.2.5 Site Representativeness
This section of the NAMS Hard Copy Information Report was util-
ized as a checklist summary for all pollutants monitored at each site.
A representative scale, various averages, and monitoring objectives
were chosen for each pollutant parameter.
15
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SECTION 5.0
RECOMMENDATION FOR USE OF SITE/SYSTEM EVALUATION FORMS
Completed site/system evaluation forms give a very detailed and
informative description of the sites. The purpose of the forms is to
identify site/systems that may not be within the criteria set for the
required monitoring objectives and to identify any problems that may
lead to unrepresentative data collection, such as obstructions to air-
flows, biased sources, topographical features, distances from mobile
sources, etc. In using the forms to evaluate the quality of data
collected at the site, all aspects of the form should be collectively
scrutinized with emphasis given to obvious location problems. There
is a set criteria that must be followed for each pollutant parameter
being studied. For example, the dimensions and location of the samp-
ling probe are extremely important facts and should be used as primary
tools in evaluating a site. Each parameter has defined requirements.
If a common probe is being utilized for several pollutants, the probe
location must satisfy criteria for all the pollutant parameters. The
site forms are designed to answer these questions.
The site evaluation forms are extremely important and are in-
strumental in assuring data quality. Just as performance audits of
analyzers indicate the validity of data, a site/system performance au-
dit indicates whether the instruments are exposed to bona fide, repre-
sentative, ambient samples that travels through an appropriate intake
manifold. Therefore, it is important to utilize all variables in the
site/system forms to fully interpret the data collected at a site.
16
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APPENDIX A
MODIFIED NAMS HARD COPY INFORMATION REPORT FORMS
17
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A. SITE IDENTIFICATION
1. State
2. City
3. Name of urbanized area
4. Census tract no.
5. SAROAD site code
6. State agency site no.
7. Local agency site no.
8. Site location
9. Names of nearest intersecting streets
lOa. Pollutants monitored at this site
10b. Additional parameters monitored at this site
11. Report prepared by
Research Triangle Institute
Research Triangle Park, N.C. 27709
12. Phone no. (919) 541-6886
13. Date
14. Outstanding landmarks
15. Site map next page
16. Site photographs following page
17. UTM coordinates
Zone
East North
18
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B. SITE CLASSIFICATION
1. Dominating influence of site
Point Area Mobile Other (describe)
2. Briefly describe how the dominating influence was determined.
3. Land use within %-mile radius of site
Density Distance and
Urban factor (%) direction from site
Residential
Commercial
Industrial
Mobile
Other (describe)
Nonurban
Agriculture
Forest
Desert
Industrial
Mobile
Other (describe)
4. Predominant land use by direction
N
NE
E
SE
S
sw
w
NW
19
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MOBILE SOURCE WORKSHEET
5. Mobile sources that may influence the site (all pollutants except SO2>:
Names of roadways (nearest to site first)
Type of roadway (check one)
Arterial highway
Expressway
Freeway
Major street or highway
Through street or highway
Local street or road
Direction(s) of travel
Traffic activity (complete as applicable):
1. Distance of roadway from site (ft)
2. Direction of roadway from site (8 pts)
3. Composition of roadway
4. Number of traffic lanes
5. Average daily traffic (estimate)
6. Average vehicle speed (estimate, mph)
7. Traffic is 1 or 2 way (1 or 2)
8. Number of parking lanes
9. Are parking lanes used for traffic part of day? (yes, no)
10. Roadway paved (yes, no)
11. Is dust visibly re-entrained? (yes, no)
12. Does roadway have curb? (yes, no)
13. Does dust collect near edges? (yes, no)
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C. TOPOGRAPHY
,1. The general characteristics of the terrain over a 2-mile radius from the site are (check one)
Smooth, Rolling, Rough
2. Topographic features that influence the site:
Direction Distance
Type Size from site from site
Hills
Valleys
Depressions
Bodies of water
Ridges
Cliffs
Other (describe)
D. METEOROLOGY AND CLIMATOLOGY
1. Source of representative meteorological data (check one):
National Weather Service
Airport Weather Service
Site weather station
Other (specify)
Not available
2. UTM coordinates
Zone
East North
3. Additional meteorological information next page
21
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E. OBSTRUCTIONS
1. List obstruction and complete information:
Direction Distance
Type Size from site from site
Notes
F. SAMPLING INFORMATION
Manifold Yes No
Description
Information topic SO2 N02 CO 03 TSP
1. Location (top of building; ground
level; other, specify)
2. If on building, give height, width,
and depth (meters)
3. Horizontal distance from
supporting structure (M)
4. Vertical distance above supporting
structure (M)
5. Height of probe above ground (M)
6. Distance from trees (M)
7. Horizontal distance from
automobile traffic (M) NA
8. Horizontal distance from nearest
parking lot (M) NA
Notes
22
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9. Monitors
SO2 NO2 CO 03 TSP
Instrument
manufacturer
Instrument
model no.
Instrument
serial no.
SAROAD
method code
Frequency
10. Additional monitors
Type
Instrument
manufacturer
Instrument
model no.
Instrument
serial no.
SAROAD
method code
Frequency
23
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G. SITE REPRESENTATIVENESS
Data collected at this site
could be used to:
1. Represent a micro scale
2. Represent a middle scale
(hundred of meters)
3. Represent a neighborhood scale
(1 to 2 km)
4. Represent an urban scale
5. Represent peak 24-hr average
6. Represent maximum annual average
7. Represent peak 1-hr average
8. Represent maximum 8-hr average
9. Represent 24-hr average
10. Represent annual average
11. Other average
(state the type of average)
12. Monitoring objective
Pollutants
SO2 N02 CO O3
TSP
24
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H. CUSTODY AND CONTROL DATA
1. Agency responsible for data collection
2. Individual's name (print)
3. Phone number
4. Agency analyzing samples
5. Individual's name (print)
6. Phone number
7. Agency reports of data are made to
8. Individual's name
9. Phone number
25
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APPENDIX B
NAMS HARD COPY INFORMATION REPORT AND SITE EVALUATION FORMS
26
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3.0 Site Information
3.1 Sits Identification
Section Number 3.0
Revision Number 0
Date: October 31, 1979
Page 1 of 10
1.
2.
3.
4.
5.
6.
7.
8.
State.
City-
Name of Urbanized Area.
Census Tract No
SAROAD Site Code.
(State Agency Site No.L
(Local Agency Site No.).
Site Address
9. Names of Nearest Intersecting Streets.
10a. NAMS Pollutants Monitored at this Site.
10b. SLAMS Pollutants Monitored at this Site.
11. Name of Report Preparer and Affiliation.
12. Phone Number.
13. Date
14. Outstanding Landmarks.
27
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RESEARCH TRIANGLE INSTITUTE
POST OFFICE BOX 12194
RESEARCH TRIANGLE PARK,
ORTH CAROLINA 2770
SYSTEMS AND MEASUREMENTS DIVISION
August 26, 1980
Dr. Tim A. Matzke, Chief
Ambient Monitoring Section (6ASASA)
U. S. Environmental Protection Agency
Region VI
1201 Elm Street
Dallas, Texas 75270
Dear Dr. Matzke:
Enclosed please find 15 copies of the final report entitled,
"Performance Survey of Ambient Air Monitors, EPA Region 6". This report
concludes the work for EPA Contract #68-06-0011.
know.
If you have any questions concerning the report, please let me
Sincerely,
C. E. Decker
Program Manager
CED/nzh
Enclosures
cc
. Payne, Contracting Officer, EPA Region VI
atent Advisor, EPA Region VI
Library, EPA Region VI
File 43U-1786
RALEIGH,
DURHAM
CHAPEL
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Section Number 3.0
Revision Number 0
Date: October 31, 1979
Page 2 of 10
15. Sketch a map to document the environment within a % mile radius of the site except for CO microscale,
when only immediate area information is needed. Include the following information on the drawing where
applicable.
NAMS at Center of Drawing
Roadways with names (paved and unpaved)
Parking Areas (paved and unpaved)
Stationary Sources (NEDS#)
Buildings (number of stories)
Undeveloped Land (ground cover)
Tree Lines or Clusters
Residences
Trailer Parks
Recreation Parks
Recreation Fields
Railroad Yards
Bodies of Water
North Direction
16. Attach separate sheet of labeled photographs
17. UTM Coordinates, Zone
or latitude and longitude
-R - Require (shall) be regulation
G Guidance (should) by regulation, or guidance document
Blocks are reserved for site evaluation only
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Section Number 3.0
Revision Number 0
Date: October 31, 1979
Page 3 of 10
3.2 Site Classification
1. Dominating influence of site (indicate pollutant)
Point
Area_
Mobile.
2. Land use with % mile radius from the site:
Urban
Residential
Commerical
Industrial
Mobile
Other (describe)
Distance and
Direction from Site
Non-Urban
Agricultural
Forest
Desert
Industrial
Mobile
Other (describe)
3.Predominant land use by direction. (2 to 3 km from the site) (residential, commerical, industrial,
suburban, and urban) G
N,
NE
E.
SE.
S.
sw.
w.
NW.
Blocks are reserved for site evaluation only.
29
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Section Number 3.0
Revision Number 0
Date: October 31, 1979
Page 4 of 10
4.A history of stationary source emissions that may influence the site is optional. If the information is
available, please include in the following form:
Sources that Influence Site (attach additional sheet if necessary)
Name of Source
and Location
NEDS
ID#
Emissions Tons/Year
TSP
so2
N02
CO
°3
HC
Effectiveness
of Control
Equipment
Relative
Influence
on Site
Direction
from Site
Distance
from
Site (M)
Blocks are reserved for site evaluation only.
30
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Section Number 3.0
Revision Number 0
Date: October 31. 1979
Page 5 of 10
Mobile Source Worksheet
5. Mobile Sources that may Influence the Site: (All pollutants except SO2)
Names of Roadways (nearest to site first)
Type: (check one)
Arterial Highway _,
Expressway
Freeway,
Parkway
Majnr Street nr Highway
Through Street or Highway
1 oral Street nr Rnari ,,..
1 'Distance of roadway from air intake(ft)
2 Direction of roadway from air inlet (8 pts)
3 O^rr-p^'l-inn nf rnarlvuay.
4. Number of traffic lanes
5. Average Haily traffic (estimate).
6 Average vehicle speed (estimate, mph)
7 Traffic is 1 nr ? way (1 or 7) .,
R Nnmher nf parking lanes.,..
9. Are parking lanes used for traffic part of day? (yes, no)
10 Roadway paved (yes, no)
11, Is dust uisihly re-entrained? (yes.no) __
12. Hoes roadway have curb? (yes.no) .
13. Does dust collect near edqes? (yes, no)
"Identify probe, if more than one.
Blocks are reserved for site evaluation only.
31
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Section Number 3.0
Revision Number 1
Date: Jan.3,1980
Page 6 of 10
3.3 Topography
1. The general characteristics of the terrain over a 2 mile radius from the site are (check one):
Smooth, Rolling, Rough
2. Topographic features that influence the site:
(Types hills, valleys, depressions, bodies of water, ridges, cliffs)
(attach additional sheet if necessary)
Type
Size
Direction from
Site
Distance from
Site
3.4 Obstructions (See Appendix E)
List obstructions and complete information:
(Types buildings, trees, ridges, cliffs)
Type
Size
Direction from
Site
Distance from
Site
Blocks are reserved for site evaluation only.
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Section Number 3.0
Revision Number 1
Date: Jan.3, 1980
Page 7 of 10
3.5 Meteorology and Climatology
1. Source of representative meteorological data (check one):
______ National Weather Service
_______ Airport Weather Service
Site Weather Station
Other (specify)
Not available
2. Describe the annual and seasonal weather patterns that influence the site by summary wind roses or a
table of frequency of occurrence for wind speeds and directions. Pollutant roses for the same periods
desired if available. Provide attachments.
3. UTM Coordinates, Zone
East.
.North.
or Latitude and Longitude
4. Location of representative meteorological station from monitoring site.
Distance ____________________________ Direction
3.6 Probe Siting (See Appendix E)
Pollutants
Information Topic
1. Location (top of building, ground l«?w?l, other specify)
2. If on building, give height (ML
width (M)_
depth (M).
3. Horizontal distant from supporting strtir.fiire (M)
4. Vertical distance ahove supporting structure (M) _
5. Height of probe above ground (M). ., .
6 Distance from trees (M),
i
7. Horizontal distance from edge of nearest traffic lane
(See Appendix E, Fig. 1 and Tables 1 , 2, 3 and 4) (M)
8. Horizontal distance from nearest parking lot (M)
9. Horizontal distance from walls, parapets, penthouses,
etc. (M)
10 Distanre from obstacles, such as buildinqs
11. Distance from furnace or incineration flues (M)
1? I Inrostrirferi air flow
13. Located in paved area or vegetative ground cover
so2
N/A
N/A
N/A
NO2
N/A
N/A
N/A
CO
N/A
N/A
N/A
N/A
N/A
°3
N/A
N/A
N/A
TSP
N/A
[Blocks are reserved for site evaluation only.
33
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Section Number 3.0
Revision Number 0
Date: October 31, 1979
Page 8 of 10
3.7 Monitor Information
Documentation of monitoring information
Pollutants
1. Instrument manufacturer
2. Instrument Model No.
3. SAROAD Method Code
4. Date Sampling Began
5. Frequency time interval
of measurement
6. Probe material
7 Residence time*
so2
NO2
CO
N/A
N/A
°3
TSP
N/A
N/A
' r manifold involved, See Section 2.2, Quality Assurance Handbook for Air Pollution,
Volume II, May, 1977.
3.8 Site and Data History
Indicate where applicable:
1. Changes in inlet probe
2. Changes in manifold _
3. Instrumental changes _
4. Breaks in the data record
5. Pollutant concentration changes since beginning of data record
6. Time periods of invalid data and reason for occurrence
Dates (month/year)
a. Malfunction of
b. Maintenance of
c. Failure to meet
instrument
instrument
quality assurance quality
d. Vandalism
e. Other (specify)
7. Is this NAMS site a previous NASN site? (TSP only)
Yes No .
Blocks are reserved for site evaluation only.
34
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3.9 Site Representativeness
Section Number 3.0
Revision Number 0
Date: October 31, 1979
Page 9 of 10
1 . Scales of Representativeness
R
(a) Represents a microscale (several
meters - 100 meters)
(b) Represents a middle scale
(0.1 -0.5km)
(c) Represents a neighborhood scale
(0.5 -4 km)
(d) Represents an urban scale
(4.0 -50 km)
Pollutants
so2
NO2
CO
°3
TSP
2. Averaging Times R
(a) Represents 24-hour average
(b) Represents 8-hour average
(c) Represents 1 -hour average
(d) Represents annual average
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
3. Monitoring Objectives R
(a) Category (a)
( 1 ) Represents worst condition
(2) Represents typical condition
(b) Category (b)
(1) Represents worst condition
(2) Represents typical condition
Blocks are reserved for site evaluation only.
35
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Section Number 3.0
Revision Number 0
Date: October 31, 1979
Page 10 of 10
3.10 Custody and Control of Data
1. Agency responsible for data collection.
2. Individual's name (print)
3. Phone number
4. Agency analyzing samples.
5. Individual's name (print)
6. Phone number
7. Reports of data are made to: (agency name)
8. Individual's name (print)
9. Phone number
36
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TECHNICAL REPORT DATA
(Please read Instructions on the reverse before completing}
1. REPORT NO.
EPA #gnfi/Q-an-nm
3. RECIPIENT'S ACCESSION NO.
4. TITLE AND SUBTITLE
Performance Survey of Ambient Air Monitors
EPA Region 6
5. REPORT DATE
June 1980 date of issue
6. PERFORMING ORGANIZATION CODE
7. AUTHOR(S)
8. PERFORMING ORGANIZATION REPORT NO.
G.F. Maier, F. K. Arey
Research Triangle Institute
9. PERFORMING ORGANIZATION NAME AND ADDRESS
Research Triangle Institute
P.O. Box 12194
Research Triangle Park, N. C. 27709
10. PROGRAM ELEMENT NO.
11. CONTRACT/GRANT NO.
EPA 68-06-0011
12. SPONSORING AGENCY NAME AND ADDRESS
U.S. Environmental Protection Agency
1201 Elm Street, Suite 2800
Dallas. Texas 75270
13. TYPE OF REPORT AND PERIOD COVERED
Final
14. SPONSORING AGENCY CODE
EPA Region 6
15. SUPPLEMENTARY NOTES
16. ABSTRACT
The Research Triangle Institute (RTI), in accordance with provisions of EPA
contract number 68-06-0011, conducted performance surveys of sixty-seven (67)
ambient air monitoring sites in the states under the jurisdiction of Region 6 of
the Environmental Protection Agency. This report contains a general discussion of
all activities completed, a summary of audit results, and an outline of the
performance survey procedures. Recommendations are made for use of site/system
evaluation forms for NAMS/PSD sites.
17.
KEY WORDS AND DOCUMENT ANALYSIS
DESCRIPTORS
b.IDENTIFIERS/OPEN ENDED TERMS
c. COSATI Field/Group
Air Pollution
Quality Assurance
Site Documentation
Air Pollution
Quality Assurance
18. DISTRIBUTION STATEMENT
Unlimited
19. SECURITY CLASS (ThisReport)'
Unclassified
21. NO. OF PAGES
41
20. SECURITY CLASS (This page)
Unclassified
22. PRICE
EPA Form 2220-1 (9-73)
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