Table 1 Community Continuous Air Monitoring Results East Palestine Derailment Site East Palestine, Columbiana County, Ohio Monitoring Period: 03/25/2023 00:00 through 03/26/2023 11:59 Air Monitering 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 0.001 to 0.007 0.003 PM10 (mg/m3) 0.070 mg/m3 No 0.003 to 0.012 0.006 8533230504 PM2 5 (mg/m3) 0.035 mg/m3 No 0.000 to 0.014 0.005 PM10 (mg/m3) 0.070 mg/m3 No 0.000 to 0.015 0.006 8533230702 PM2 5 (mg/m3) 0.035 mg/m3 No 0.000 to 0.008 0.002 PM10 (mg/m3) 0.070 mg/m3 No 0.000 to 0.011 0.004 W01A00000609 VOC (ppm) 0.5 ppm No 0.00 to 0.03 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 W01A00002173 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 W01B00002164 VOC (ppm) 0.5 ppm No 0.00 to 0.00 0.00 W01B00002162 VOC (ppm) 0.5 ppm No 0.00 to 0.01 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 0.01 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 0.00 0.00 W01B00002222 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 W01B00002223 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 ------- x Gould W Martinet East Palestine Cemetery Jimtown M/01B00002164 W01IB0QM2223. W01BQ0002172 W01B00Q02W3, W01B000iD2208 W01A00002181 \-1W01'B0?]002206 Rffl Li¦ V, I n' fi 1 Miirtr ¦W01A00002173 85332307.02, R WO1AOQ0O2175. W01B00002220 W01B00002222' Plot for [YNGl YOUNGS-OWN Generated: 28 Mar 2023 Gamelands N Summary ,>*" Obs Used: 36 Obs Without Wind: 0 Avg Speed: 18.0 mph 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 Date Saved: 3/24/2023 ------- |