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 Table 1 webpages, please contact the Region 5 Community Continuous Air Monitoring Results Public Information Officer on-call at: East Palestine Derailment Site R5_EastPalestine@epa.gov East Palestine, Columbiana County, Ohio Monitoring Period: 03/29/2023 00:00 through 03/30/2023 14:50 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) Yes"' 0.012 to 0.039 0.018 PM10 (mg/m1) 0.070 (mg/in) No 0.013 to 0.044 0.022 8533230504 PM2 5 (mg/m3) 0.035 (mg/m3) Yes"' 0.011 to 0.039 0.021 PM10 (mg/m1) 0.070 (mg/mJ) No 0.015 to 0.041 0.023 8533230702 PM2 5 (mg/m3) 0.035 (mg/m3) Yes' 0.009 to 0.037 0.018 PM10 (mg/m1) 0.070 (mg/mJ) No 0.010 to 0.040 0.02 W01A00000609 VOC (ppm) 0.5 (ppm) No 0.00 to 0.00 0.00 W01A00002173 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 W01B00002170 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 W01B00002172 VOC (ppm) 0.5 (ppm) No 0.00 to 0.02 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 0.02 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) Yes 0.00 to 2.93 0.50 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. 2 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 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 ------- x Gould East Palestine Cemetery Jimtown A/V01BQ0002164 W01IB0QM2223. W01BQ0002172 tW.01B0000¥l83: WO1BOOOJ022O8 W01A00002181 \-1W01'B0(5002206 iV0iA00002173 8533230702 H P»^01fA00(X)21>3HHBni,-.|-1 IE • ¦ 3533230504* W01A0000060 WOT BOodB^TQ036^ W01 B0°°tP2221 W01A0Q002175. W01B00002220 ^01600002^81' WO1BO00O2'22'2 WO1BOQ002162 Plot for [YNG1 YOUNGS-OWN Summary Obs Used; 38 Obs Without Wind: 3 Avg Speed: 7.9 mph Generated: 31 Mar 2023 It TETRA TECH Prepared By: TetraTech Inc. Figure 1 Continuous Air Monitoring Community Stations Legend 0 Continuous Air Monitoring Locations with DustTrak [¦"] Continuous Air Monitoring Locations h Derailment Location One Mile Radius Reference Map East Palestine Derailment ER Site East Palestine, Columbiana County, OH 44413 Miles Date Saved: 3/30/2023 ------- |