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aqireport2020.pdfGenerated: August 31, 2021 Source: U.S. EPA AirData <https://www.epa.gov/air-data> Readers are cautioned not to rank order geographic areas based on AirData reports. Air pollution levels measured at a particular monitoring site are not necessarily representative of the air quality for an entire county or urban area. AirData reports are produced from a direct query of the AQS Data Mart. The data represent the best and most recent information available to EPA from state agencies. However, some values may be absent due to incomplete reporting, and some values may change due to quality assurance activities. The AQS database is updated by state, local, and tribal organizations who own and submit the data. Get detailed information about this report, including column descriptions, at https://www.epa.gov/outdoor-air-quality-data/about-air-data-reports#aqi Air Quality Index Report Geographic Area: Hampshire County, MA Summary: by County Year: 2020 Generated: August 31, 2021 Source: U.S. EPA AirData <https://www.epa.gov/air-data> Readers are cautioned not to rank order geographic areas based on AirData reports. Air pollution levels measured at a particular monitoring site are not necessarily representative of the air quality for an entire county or urban area. AirData reports are produced from a direct query of the AQS Data Mart. The data represent the best and most recent information available to EPA from state agencies. However, some values may be absent due to incomplete reporting, and some values may change due to quality assurance activities. The AQS database is updated by state, local, and tribal organizations who own and submit the data. Get detailed information about this report, including column descriptions, at https://www.epa.gov/outdoor-air-quality-data/about-air-data-reports#aqi Air Quality Index Report Geographic Area: Hampshire County, MA Summary: by County Year: 2020 Number of Days when Air Quality was...AQI Statistics Number of Days when AQI Pollutant was... County # Days with AQI Good Moderate Unhealthy for Sensitive Groups Unhealthy Very Unhealthy Maximum 90th Percentile Median CO NO2 O3 SO2 PM2.5 PM10 Hampshire County, MA 366 341 25 ...84 48 35 .9 253 .103 1