Table 1

Community Roving Air Monitoring Results Summary Table
East Palestine Derailment Emergency Response
East Palestine, Ohio
Monitoring Period: 05/30/2023 08:07 to 05/30/2023 17:11





VOC (ppm)

PM2 5 (mg/m3)1

PM10 (mg/m3)1

Location

Date/Time

Screening Levels





0.5 ppm

0.035 mg/m3

0.070 mg/m3

PCR-N-03

5/30/2023 8:13

0

0.027

0.03



5/30/2023 10:57

0

0.041

0.044



5/30/2023 16:03

0

0.025

0.029

PCR-N-04

5/30/2023 8:55

0

0.037

0.041



5/30/2023 11:41

0

0.041

0.045



5/30/2023 16:31

0

0.026

0.031

PCR-N-05

5/30/2023 9:05

0

0.063

0.074



5/30/2023 11:46

0

0.065

0.091



5/30/2023 16:36

0

0.036

0.053

PCR-N-06

5/30/2023 8:46

0

0.033

0.036



5/30/2023 11:34

0

0.039

0.044



5/30/2023 16:22

0

0.025

0.03

PCR-N-07

5/30/2023 8:22

0

0.026

0.029



5/30/2023 11:01

0

0.073

0.044



5/30/2023 16:06

0

0.027

0.033

PCR-N-08

5/30/2023 8:25

0

0.026

0.028



5/30/2023 11:20

0

0.044

0.049



5/30/2023 16:09

0

0.025

0.029

PCR-N-09

5/30/2023 8:30

0

0.027

0.03



5/30/2023 11:25

0

0.044

0.053



5/30/2023 16:13

0

0.023

0.027

PCR-N-10

5/30/2023 8:36

0

0.032

0.036



5/30/2023 11:30

0

0.041

0.043



5/30/2023 16:19

0

0.027

0.033

PCR-N-11

5/30/2023 9:14

0

0.037

0.039



5/30/2023 11:51

0

0.04

0.049



5/30/2023 16:42

0

0.028

0.034

PCR-N-12

5/30/2023 9:19

0

0.039

0.044



5/30/2023 11:56

0

0.035

0.038



5/30/2023 16:47

0

0.024

0.027

PCR-N-13

5/30/2023 8:49

0

0.04

0.048



5/30/2023 11:38

0

0.038

0.041



5/30/2023 16:27

0

0.026

0.031

PCR-S-01

5/30/2023 10:42

0

0.04

0.044



5/30/2023 14:43

0

0.03

0.043

PCR-S-04

5/30/2023 10:28

0

0.04

0.041



5/30/2023 14:39

0

0.026

0.029

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

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 web pages, please
contact the Region 5 Public Information Officer on-call at:
R5_EastPalestine@epa.gov


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Table 1

Community Roving Air Monitoring Results Summary Table
East Palestine Derailment Emergency Response
East Palestine, Ohio
Monitoring Period: 05/30/2023 08:07 to 05/30/2023 17:11





VOC (ppm)

PM2 5 (mg/m3)1

PM10 (mg/m3)1

Location

Date/Time

Screening Levels





0.5 ppm

0.035 mg/m3

0.070 mg/m3

PCR-S-05

5/30/2023 10:18

0

0.042

0.047



5/30/2023 14:31

0

0.028

0.033

PCR-S-06

5/30/2023 10:11

0

0.041

0.044



5/30/2023 14:22

0

0.029

0.036



5/30/2023 17:11

0

0.025

0.028

PCR-S-07

5/30/2023 10:06

0

0.039

0.044



5/30/2023 14:15

0

0.027

0.031

PCR-S-08

5/30/2023 10:01

0

0.043

0.052



5/30/2023 14:09

0

0.031

0.037



5/30/2023 17:08

0

0.023

0.026

PCR-S-09

5/30/2023 10:23

0

0.041

0.047



5/30/2023 14:36

0

0.025

0.029

PCR-S-10

5/30/2023 8:07

0

0.028

0.032

PCR-S-15

5/30/2023 17:04

0

0.03

0.043

PCR-S-16

5/30/2023 9:55

0

0.04

0.044



5/30/2023 14:03

0

0.035

0.045



5/30/2023 16:55

0

0.035

0.054

Station 02

5/30/2023 8:45



0.037

0.04



5/30/2023 14:52



0.062

0.099

Station 03

5/30/2023 9:21



0.05

0.073



5/30/2023 14:20



0.026

0.04

Station 05

5/30/2023 9:48



0.047

0.052

Station 06

5/30/2023 9:36



0.053

0.057



5/30/2023 14:05



0.043

0.077

Station 07

5/30/2023 13:51



0.041

0.049


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Notes:

Highlighted indicate detections above screening levels
Grey cells indicate no measurement was collected for that specific parameter
1 - Site-Specific Public Health Screening Levels for particulate matter are based on 24-hour time-weighted

* - the screening level is the instrument's limit of detection.

1 - A secondary instrument was used to evaluate CO and reported CO as non-detected. The elevated CO measurem
CI - chlorine
F2 - fluorine

HC1 - hydrogen chloride

HCN - hydrogen cyanide

mg/m - 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

TWA - time-weighted average

VOC - volatile organic compounds


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Legend

O Roaming Air Monitoring Locations
Derailment Location
One Mile Radius

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





Figure 1

Roaming Air Monitoring

Community Locations





TETRA TECH

Prepared For: EPA

Prepared By: TetraTech Inc.

Reference Map

Location

Date Saved: 5/12/2023


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