We are in the process of ensuring this
document is accessible to all
audiences. If you need assistance
accessing this document, or any
material on the EPA East Palestine,
Ohio emergency response webpages,
please contact the Region 5 Public
Information Officer on-call at:
Monitoring Period: 03/17/2023 00:00 through 03/18/2023 09:12 R5_EastPalestine@epa.gov

Air Monitoring

Instrument:
Serial Number

Analyte

Screening Level1

Screening Level
Exceeded?

8-hour Period
Concentration Range

Average of All
8-hour Periods

8533230503

PM2 5 (mg/m3)

0.035 mg/m3

No

0.011 to 0.012

0.012

PM10 (mg/m1)

0.035 mg/m3

No

0.012 to 0.013

0.012

8533230504

PM2 5 (mg/m3)

0.035 mg/m3

No

0.008 to 0.020

0.011

PM10 (mg/m1)

0.035 mg/m3

No

0.009 to 0.020

0.011

W01A00000609

VOC (ppm)

0.5 ppm

No

0.00 to 0.02

0.01

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 0.01

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 0.00

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 0.03

0.01

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 0.00

0.00

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 0.00

0.00

Notes:

1 Site-Specific Action Level stated in the Tetra Tech Air Monitoring and Sampling Plan.

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.

On 3/16/2023, the AreaRAE network was modified to include VOCs, LEL, and 02 for Site Monitoring and VOCs for community
based monitoring. Sensors were eliminated after evaluating historical data and better reflect the current threats to the environment
and community.

Abbreviations:

mg/m3 - milligrams per cubic meter

PM2 5 - particles that are 2.5 micrometers and smaller

PM10 - particles that are 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	

Table 1

Community Continuous Air Monitoring Results
East Palestine Derailment Site
East Palestine, Columbiana County, Ohio


-------
WO1BO0O.O2164

W01B00002172

W01B00002223

W01B00002183

'.W01B00002208

W01A00002181

W01B00.002206

W01B00002220

P01iB000022'2i

OT.O'M0OQO2182
SE323d5045ti^=

VV01rA00.0.02'I=7/5.

lW01iB000022221

W01A00000609.
¦8533230503 "*•

W01B00002162

VV 01' B OOOQ21'7 0

W01B0000218i

Plot for [YNG1 YOUNG5-OWN

Generated: 18 Mar 2023

TETRA TECH

Prepared For: EPA

Prepared By: TetraTech Inc.

Summary
Obs Used; 33
Obs Without Wind: 0
Avg Speed: 12.9 mph

Reference Map

Legend

0 Continuous Air Monitoring Locations with DustTrak
f«1 Continuous Air Monitoring Locations

h Derailment Location

One Mile Radius

Miles

East Palestine Derailment ER Site
East Palestine, Columbiana County, OH 44413

Figure 1

Continuous Air Monitoring
Community Stations

Date Saved: 3/17/2023


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