Table 1 Community Continuous Air Monitoring Results East Palestine Derailment Site East Palestine, Columbiana County, Ohio 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: R5_EastPalestine@epa.gov Monitoring Period: 04/02/2023 00:00 through 04/02/2023 23:59 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/m5) 0.035 (mg/nO No 0.001 to 0.009 0.004 PM10 (mg/m1) 0.070 (mg/m ) No 0.001 to 0.013 0.005 8533230504 PM2 5 (mg/m5) 0.035 (mg/nO No 0.010 to 0.034 0.020 PM10 (mg/m1) 0.070 (mg/m ) No 0.018 to 0.047 0.032 8533230702 PM2 5 (mg/m5) 0.035 (mg/nO No 0.003 to 0.011 0.006 PM10 (mg/m1) 0.070 (mg/m ) No 0.004 to 0.012 0.006 W01A00000609 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 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 0.00 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 0.00 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 W01B00002209 VOC (ppm) 0.5 (ppm) No 0.00 to 0.00 0.00 W01B00002220 VOC (ppm) 0.5 (ppm) No 0.00 to 0.04 0.02 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 W01A00002181 VOC (ppm) 0.5 (ppm) No 0.00 to 0.00 0.00 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. 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/m - 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 ------- East Palestine Cemetery Jimtown WHOM ¦ -W01B00002164 W01BQ0002172 I tW.01B0000¥l83: WO1BOOOJ022O8 W01A00002181 \-1W01'B0(5002206 IJA/Q1B00002209 8533230702 H F^0'moooo2i8^HBHf|j!,.rI I I ¦ ¦ ¦ 35332305p4i yy 01A0000060 8533230503'' WOT BOOOolfTO0®^ W01 BP0002221 W01A0Q002175. W01B00002220 ^01600002^81' W01B00002'222 W0lB0Q0p2-l"62 Summary x Obs Used: 23 Obs Without Wind: 3 Avg Speed: 9.5 mph Generated: 07 Apr 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: 4/4/2023 ------- |