Table 1
Community Continuous Air Monitoring Results
East Palestine Derailment Site
East Palestine, Columbiana County, Ohio
Monitoring Period: 04/13/2023 00:00 through 04/14/2023 11:19
Air Monitoring
Instrument:
Serial Number
Analyte
Screening Level1
Screening Level
Exceeded?
8-hour Period
Concentration Range
Average of All
8-hour Periods
8533230504
PM2.5 (mg/m3)
0.035 (mg/m3)
No
0.007 to 0.028
0.016
PM10 (mg/m3)
0.070 (mg/mJ)
No
0.014 to 0.037
0.023
8533230503
PM2.5 (mg/m3)
0.035 (mg/m3)
Yes'
0.021 to 0.044
0.032
PM10 (mg/m3)
0.070 (mg/m3)
Yes'
0.035 to 0.108
0.07
8533230702
PM2.5 (mg/m3)
0.035 (mg/m3)
Yes'
0.016 to 0.048
0.026
PM10 (mg/m3)
0.070 (mg/mJ)
No
0.018 to 0.057
0.029
W01A00000609
VOC (ppm)
0.5 (ppm)
No
0.00 to 0.00
0.00
W01B00002209
VOC (ppm)
0.5 (ppm)
No
0.00 to 0.00
0.00
W01A00002175
VOC (ppm)
0.5 (ppm)
No
0.00 to 0.00
0.00
W01A00002181
VOC (ppm)
0.5 (ppm)
No
0.00 to 0.00
0.00
W01A00002182
VOC (ppm)
0.5 (ppm)
No
0.00 to 0.00
0.00
W01B00002162
VOC (ppm)
0.5 (ppm)
No
0.00 to 0.00
0.00
W01B00002164
VOC (ppm)
0.5 (ppm)
No
0.00 to 0.00
0.00
W01B00002170
VOC (ppm)
0.5 (ppm)
No
0.00 to 0.01
0.00
W01B00002172
VOC (ppm)
0.5 (ppm)
No
0.00 to 0.00
0.00
W01B00002181
VOC (ppm)
0.5 (ppm)
No
0.00 to 0.00
0.00
W01B00002183
VOC (ppm)
0.5 (ppm)
No
0.00 to 0.00
0.00
W01B00002206
VOC (ppm)
0.5 (ppm)
No
0.00 to 0.00
0.00
W01B00002208
VOC (ppm)
0.5 (ppm)
No
0.00 to 0.00
0.00
W01B00002220
VOC (ppm)
0.5 (ppm)
No
0.00 to 0.18
0.06
W01B00002221
VOC (ppm)
0.5 (ppm)
No
0.00 to 0.00
0.00
W01B00002222
VOC (ppm)
0.5 (ppm)
No
0.00 to 0.00
0.00
W01B00002223
VOC (ppm)
0.5 (ppm)
No
0.00 to 0.02
0.01
Notes:
1 Site-Specific Screening Levels stated in the Tetra Tech Air Monitoring and Sampling Plan. Screening levels were modified on March 16,
2023 to reflect updated operation procedures on when to apply mitigation methods to reduce dust. Action levels set by health departments have
not changed.
Vehicle traffic observed during monitoring period near monitoring instrument.
Air monitoring measurements have been averaged over a 8-hour time period and summarized above.
Air monitoring is not performed during inclement weather conditions/rain and thunderstorms.
Abbreviations:
mg/m3 - milligrams per meter cubed
PM2 5 - Particulate Matter, diameter 2.5 micrometers and smaller
PM10 - Particulate Matter, diameter 10 micrometers and smaller
ppm - Parts per million
S/N - Serial number
VOC - Volatile organic compound
We are in the process of ensuring this document is accessible to all audiences. If you need assistance accessing this document, or any materials
on the EPA East Palestine, Ohio emergency response webpages, please contact the Region 5 Public Information Officer on-call
r5_eastpalestine@epa. gov
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Figure 1
Continuous Air Monitoring
Community Stations
TETRA TECH
Prepared For: EPA
Prepared By: TetraTech Inc.
Legend
0 Continuous Air Monitoring Locations with DustTrak
[¦"] Continuous Air Monitoring Locations
h Derailment Location
One Mile Radius
East Palestine Derailment ER Site
East Palestine, Columbiana County, OH 44413
Reference Map
Location
Miles
Summary
f Obs Used; 35
Obs Without Wind: 0
Avg Speed: 7.0 mph
Date Saved: 4/17/2023
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