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Cornwall: 2009 History

Air Quality for Cornwall Date Time AQI Category Cause Note: AQI readings on this web page are based on automatically polled data and have not undergone final verification. 31-Dec-09 (More Readings) 4:00 PM EST 22 Fine Particulate Matter (PM2.5) 30-Dec-09 (More Readings) 4:00 PM EST 21 Ozone (O3) 29-Dec-09 (More Readings) 4:00 PM EST 21 Ozone (O3) 28-Dec-09 (More Readings) 4:00 PM EST 18 Ozone (O3) 27-Dec-09 (More Readings) 4:00 PM EST 17 Ozone (O3) 26-Dec-09 (More Readings) 4:00 PM EST 20 Ozone (O3) 25-Dec-09 (More Readings) 4:00 PM EST 18 Ozone (O3) 24-Dec-09 (More Readings) 4:00 PM EST 12 Ozone (O3) 23-Dec-09 (More Readings) 4:00 PM EST 19 Ozone (O3) 22-Dec-09 (More Readings) 4:00 PM EST 19 Ozone (O3) 21-Dec-09 (More Readings) 4:00 PM EST 22 Ozone (O3) 20-Dec-09 (More Readings) 4:00 PM EST 20 Ozone (O3) 19-Dec-09 (More Readings) 4:00 PM EST 19 Ozone (O3) 18-Dec-09 (More Readings) 4:00 PM EST 17 Ozone (O3) 17-Dec-09 (More Readings) 4:00 PM EST 18 Ozone (O3) 16-Dec-09 (More Readings) 4:00 PM EST 18 Ozone (O3) 15-Dec-09 (More Readings) 4:00 PM EST 15 Ozone (O3) 14-Dec-09 (More Readings) 4:00 PM EST 9 Fine Particulate Matter (PM2.5) 13-Dec-09 (More Readings) 4:00 PM EST 17 Ozone (O3) 12-Dec-09 (More Readings) 4:00 PM EST 22 Ozone (O3) 11-Dec-09 (More Readings) 4:00 PM EST 21 Ozone (O3) 10-Dec-09 (More Readings) 4:00 PM EST 21 Ozone (O3) 09-Dec-09 (More Readings) 4:00 PM EST 20 Ozone (O3) 08-Dec-09 (More Readings) 4:00 PM EST 17 Ozone (O3) 07-Dec-09 (More Readings) 4:00 PM EST 14 Ozone (O3) 06-Dec-09 (More Readings) 4:00 PM EST 20 Ozone (O3) 05-Dec-09 (More Readings) 4:00 PM EST 12 Ozone (O3) 04-Dec-09 (More Readings) 4:00 PM EST 14 Ozone (O3) 03-Dec-09 (More Readings) 4:00 PM EST 8 Ozone (O3) 02-Dec-09 (More Readings) 4:00 PM EST 9 Fine Particulate Matter (PM2.5) 01-Dec-09 (More Readings) 4:00 PM EST 11 Ozone (O3) 30-Nov-09 (More Readings) 4:00 PM EST 16 Ozone (O3) 29-Nov-09 (More Readings) 4:00 PM EST 16 Ozone (O3) 28-Nov-09 (More Readings) 4:00 PM EST 17 Ozone (O3) 27-Nov-09 (More Readings) 4:00 PM EST 11 Ozone (O3) 26-Nov-09 (More Readings) 4:00 PM EST 6 Fine Particulate Matter (PM2.5) 25-Nov-09 (More Readings) 4:00 PM EST 10 Fine Particulate Matter (PM2.5) 24-Nov-09 (More Readings) 4:00 PM EST 14 Fine Particulate Matter (PM2.5) 23-Nov-09 (More Readings) 4:00 PM EST 14 Fine Particulate Matter (PM2.5) 22-Nov-09 (More Readings) 4:00 PM EST 13 Ozone (O3) 21-Nov-09 (More Readings) 4:00 PM EST 18 Ozone (O3) 20-Nov-09 (More Readings) 4:00 PM EST 9 Ozone (O3) 19-Nov-09 (More Readings) 4:00 PM EST 14 Fine Particulate Matter (PM2.5) 18-Nov-09 (More Readings) 4:00 PM EST 14 Ozone (O3) 17-Nov-09 (More Readings) 4:00 PM EST 14 Ozone (O3) 16-Nov-09 (More Readings) 4:00 PM EST 20 Ozone (O3) 15-Nov-09 (More Readings) 4:00 PM EST 20 Ozone (O3) 14-Nov-09 (More Readings) 4:00 PM EST 10 Fine Particulate Matter (PM2.5) 13-Nov-09 (More Readings) 4:00 PM EST 11 Fine Particulate Matter (PM2.5) 12-Nov-09 (More Readings) 4:00 PM EST 12 Ozone (O3) 11-Nov-09 (More Readings) 4:00 PM EST 14 Ozone (O3) 10-Nov-09 (More Readings) 4:00 PM EST 20 Ozone (O3) 09-Nov-09 (More Readings) 4:00 PM EST 33 Ozone (O3) 08-Nov-09 (More Readings) 4:00 PM EST 23 Ozone (O3) 07-Nov-09 (More Readings) 4:00 PM EST 13 Ozone (O3) 06-Nov-09 (More Readings) 4:00 PM EST 12 Ozone (O3) 05-Nov-09 (More Readings) 4:00 PM EST 14 Ozone (O3) 04-Nov-09 (More Readings) 4:00 PM EST 14 Ozone (O3) 03-Nov-09 (More Readings) 4:00 PM EST 14 Ozone (O3) 02-Nov-09 (More Readings) 4:00 PM EST 14 Ozone (O3) 01-Nov-09 (More Readings) 4:00 PM EST 15 Ozone (O3) 31-Oct-09 (More Readings) 4:00 PM EDT 18 Ozone (O3) 30-Oct-09 (More Readings) 4:00 PM EDT 4 Nitrogen Dioxide (NO2) 29-Oct-09 (More Readings) 4:00 PM EDT 13 Fine Particulate Matter (PM2.5) 28-Oct-09 (More Readings) 4:00 PM EDT 10 Fine Particulate Matter (PM2.5) 27-Oct-09 (More Readings) 4:00 PM EDT 12 Fine Particulate Matter (PM2.5) 26-Oct-09 (More Readings) 4:00 PM EDT 14 Ozone (O3) 25-Oct-09 (More Readings) 4:00 PM EDT 19 Ozone (O3) 24-Oct-09 (More Readings) 4:00 PM EDT 8 Ozone (O3) 23-Oct-09 (More Readings) 4:00 PM EDT 15 Ozone (O3) 22-Oct-09 (More Readings) 4:00 PM EDT 16 Fine Particulate Matter (PM2.5) 21-Oct-09 (More Readings) 4:00 PM EDT 7 Ozone (O3) 20-Oct-09 (More Readings) 4:00 PM EDT 18 Ozone (O3) 19-Oct-09 (More Readings) 4:00 PM EDT 23 Ozone (O3) 18-Oct-09 (More Readings) 4:00 PM EDT 20 Ozone (O3) 17-Oct-09 (More Readings) 4:00 PM EDT 17 Ozone (O3) 16-Oct-09 (More Readings) 4:00 PM EDT 18 Ozone (O3) 15-Oct-09 (More Readings) 4:00 PM EDT 19 Ozone (O3) 14-Oct-09 (More Readings) 4:00 PM EDT 15 Ozone (O3) 13-Oct-09 (More Readings) 4:00 PM EDT 14 Ozone (O3) 12-Oct-09 (More Readings) 4:00 PM EDT 15 Ozone (O3) 11-Oct-09 (More Readings) 4:00 PM EDT 18 Ozone (O3) 10-Oct-09 (More Readings) 4:00 PM EDT 15 Ozone (O3) 09-Oct-09 (More Readings) 4:00 PM EDT 17 Ozone (O3) 08-Oct-09 (More Readings) 4:00 PM EDT 18 Ozone (O3) 07-Oct-09 (More Readings) 4:00 PM EDT 14 Ozone (O3) 06-Oct-09 (More Readings) 4:00 PM EDT 10 Ozone (O3) 05-Oct-09 (More Readings) 4:00 PM EDT 10 Ozone (O3) 04-Oct-09 (More Readings) 4:00 PM EDT 16 Ozone (O3) 03-Oct-09 (More Readings) 4:00 PM EDT 16 Ozone (O3) 02-Oct-09 (More Readings) 4:00 PM EDT 14 Ozone (O3) 01-Oct-09 (More Readings) 4:00 PM EDT 10 Ozone (O3) 30-Sep-09 (More Readings) 4:00 PM EDT 12 Ozone (O3) 29-Sep-09 (More Readings) 4:00 PM EDT 8 Ozone (O3) 28-Sep-09 (More Readings) 4:00 PM EDT 18 Ozone (O3) 27-Sep-09 (More Readings) 4:00 PM EDT 11 Ozone (O3) 26-Sep-09 (More Readings) 4:00 PM EDT 22 Ozone (O3) 25-Sep-09 (More Readings) 4:00 PM EDT 18 Ozone (O3) 24-Sep-09 (More Readings) 4:00 PM EDT 14 Ozone (O3) 23-Sep-09 (More Readings) 4:00 PM EDT 17 Ozone (O3) 22-Sep-09 (More Readings) 4:00 PM EDT 18 Ozone (O3) 21-Sep-09 (More Readings) 4:00 PM EDT 27 Ozone (O3) 20-Sep-09 (More Readings) 4:00 PM EDT 22 Ozone (O3) 19-Sep-09 (More Readings) 4:00 PM EDT 23 Ozone (O3) 18-Sep-09 (More Readings) 4:00 PM EDT 12 Ozone (O3) 17-Sep-09 (More Readings) 4:00 PM EDT 17 Ozone (O3) 16-Sep-09 (More Readings) 4:00 PM EDT 20 Ozone (O3) 15-Sep-09 (More Readings) 4:00 PM EDT 13 Ozone (O3) 14-Sep-09 (More Readings) 4:00 PM EDT 15 Ozone (O3) 13-Sep-09 (More Readings) 4:00 PM EDT 20 Ozone (O3) 12-Sep-09 (More Readings) 4:00 PM EDT 28 Ozone (O3) 11-Sep-09 (More Readings) 4:00 PM EDT 24 Ozone (O3) 10-Sep-09 (More Readings) 4:00 PM EDT 24 Ozone (O3) 09-Sep-09 (More Readings) 4:00 PM EDT 27 Ozone (O3) 08-Sep-09 (More Readings) 4:00 PM EDT 24 Ozone (O3) 07-Sep-09 (More Readings) 4:00 PM EDT 21 Ozone (O3) 06-Sep-09 (More Readings) 4:00 PM EDT 21 Ozone (O3) 05-Sep-09 (More Readings) 4:00 PM EDT 18 Ozone (O3) 04-Sep-09 (More Readings) 4:00 PM EDT 27 Ozone (O3) 03-Sep-09 (More Readings) 4:00 PM EDT 28 Ozone (O3) 02-Sep-09 (More Readings) 4:00 PM EDT 25 Ozone (O3) 01-Sep-09 (More Readings) 4:00 PM EDT 22 Ozone (O3) 31-Aug-09 (More Readings) 4:00 PM EDT 20 Ozone (O3) 30-Aug-09 (More Readings) 4:00 PM EDT 17 Ozone (O3) 29-Aug-09 (More Readings) 4:00 PM EDT 16 Ozone (O3) 28-Aug-09 (More Readings) 4:00 PM EDT 19 Ozone (O3) 27-Aug-09 (More Readings) 4:00 PM EDT 22 Ozone (O3) 26-Aug-09 (More Readings) 4:00 PM EDT 21 Ozone (O3) 25-Aug-09 (More Readings) 4:00 PM EDT 24 Ozone (O3) 24-Aug-09 (More Readings) 4:00 PM EDT 20 Ozone (O3) 23-Aug-09 (More Readings) 4:00 PM EDT 16 Fine Particulate Matter (PM2.5) 22-Aug-09 (More Readings) 4:00 PM EDT 25 Ozone (O3) 21-Aug-09 (More Readings) 4:00 PM EDT 18 Ozone (O3) 20-Aug-09 (More Readings) 4:00 PM EDT 17 Ozone (O3) 19-Aug-09 (More Readings) 4:00 PM EDT 21 Ozone (O3) 18-Aug-09 (More Readings) 4:00 PM EDT 27 Ozone (O3) 17-Aug-09 (More Readings) 4:00 PM EDT 36 Ozone (O3) 16-Aug-09 (More Readings) 4:00 PM EDT 42 Fine Particulate Matter (PM2.5) 15-Aug-09 (More Readings) 4:00 PM EDT 33 Ozone (O3) 14-Aug-09 (More Readings) 4:00 PM EDT 25 Ozone (O3) 13-Aug-09 (More Readings) 4:00 PM EDT 27 Ozone (O3) 12-Aug-09 (More Readings) 4:00 PM EDT 27 Ozone (O3) 11-Aug-09 (More Readings) 4:00 PM EDT 21 Ozone (O3) 10-Aug-09 (More Readings) 4:00 PM EDT 22 Ozone (O3) 09-Aug-09 (More Readings) 4:00 PM EDT 19 Fine Particulate Matter (PM2.5) 08-Aug-09 (More Readings) 4:00 PM EDT 19 Ozone (O3) 07-Aug-09 (More Readings) 4:00 PM EDT 17 Ozone (O3) 06-Aug-09 (More Readings) 4:00 PM EDT 14 Ozone (O3) 05-Aug-09 (More Readings) 4:00 PM EDT 15 Ozone (O3) 04-Aug-09 (More Readings) 4:00 PM EDT 33 Ozone (O3) 03-Aug-09 (More Readings) 4:00 PM EDT 23 Ozone (O3) 02-Aug-09 (More Readings) 4:00 PM EDT 21 Ozone (O3) 01-Aug-09 (More Readings) 4:00 PM EDT 25 Ozone (O3) 31-Jul-09 (More Readings) 4:00 PM EDT 21 Ozone (O3) 30-Jul-09 (More Readings) 4:00 PM EDT 16 Ozone (O3) 29-Jul-09 (More Readings) 4:00 PM EDT 34 Fine Particulate Matter (PM2.5) 28-Jul-09 (More Readings) 4:00 PM EDT 30 Ozone (O3) 27-Jul-09 (More Readings) 4:00 PM EDT 21 Ozone (O3) 26-Jul-09 (More Readings) 4:00 PM EDT 22 Ozone (O3) 25-Jul-09 (More Readings) 4:00 PM EDT 27 Ozone (O3) 24-Jul-09 (More Readings) 4:00 PM EDT 20 Ozone (O3) 23-Jul-09 (More Readings) 4:00 PM EDT 18 Ozone (O3) 22-Jul-09 (More Readings) 4:00 PM EDT 20 Ozone (O3) 21-Jul-09 (More Readings) 4:00 PM EDT 25 Ozone (O3) 20-Jul-09 (More Readings) 4:00 PM EDT 20 Ozone (O3) 19-Jul-09 (More Readings) 4:00 PM EDT 12 Ozone (O3) 18-Jul-09 (More Readings) 4:00 PM EDT 21 Ozone (O3) 17-Jul-09 (More Readings) 4:00 PM EDT 26 Ozone (O3) 16-Jul-09 (More Readings) 4:00 PM EDT 35 Ozone (O3) 15-Jul-09 (More Readings) 4:00 PM EDT 23 Ozone (O3) 14-Jul-09 (More Readings) 4:00 PM EDT 12 Ozone (O3) 13-Jul-09 (More Readings) 4:00 PM EDT 16 Ozone (O3) 12-Jul-09 (More Readings) 4:00 PM EDT 17 Ozone (O3) 11-Jul-09 (More Readings) 4:00 PM EDT 26 Fine Particulate Matter (PM2.5) 10-Jul-09 (More Readings) 4:00 PM EDT 25 Ozone (O3) 09-Jul-09 (More Readings) 4:00 PM EDT 25 Ozone (O3) 08-Jul-09 (More Readings) 4:00 PM EDT 20 Ozone (O3) 07-Jul-09 (More Readings) 4:00 PM EDT 18 Ozone (O3) 06-Jul-09 (More Readings) 4:00 PM EDT 20 Ozone (O3) 05-Jul-09 (More Readings) 4:00 PM EDT 19 Ozone (O3) 04-Jul-09 (More Readings) 4:00 PM EDT 9 Ozone (O3) 03-Jul-09 (More Readings) 4:00 PM EDT 14 Ozone (O3) 02-Jul-09 (More Readings) 4:00 PM EDT 22 Ozone (O3) 01-Jul-09 (More Readings) 4:00 PM EDT 24 Ozone (O3) 30-Jun-09 (More Readings) 4:00 PM EDT 24 Ozone (O3) 29-Jun-09 (More Readings) 4:00 PM EDT 24 Ozone (O3) 28-Jun-09 (More Readings) 4:00 PM EDT 27 Ozone (O3) 27-Jun-09 (More Readings) 4:00 PM EDT 18 Ozone (O3) 26-Jun-09 (More Readings) 4:00 PM EDT 26 Ozone (O3) 25-Jun-09 (More Readings) 4:00 PM EDT 31 Ozone (O3) 24-Jun-09 (More Readings) 4:00 PM EDT 35 Ozone (O3) 23-Jun-09 (More Readings) 4:00 PM EDT 31 Ozone (O3) 22-Jun-09 (More Readings) 4:00 PM EDT 28 Ozone (O3) 21-Jun-09 (More Readings) 4:00 PM EDT 19 Ozone (O3) 20-Jun-09 (More Readings) 4:00 PM EDT 21 Ozone (O3) 19-Jun-09 (More Readings) 4:00 PM EDT 20 Ozone (O3) 18-Jun-09 (More Readings) 4:00 PM EDT 24 Ozone (O3) 17-Jun-09 (More Readings) 4:00 PM EDT 29 Ozone (O3) 16-Jun-09 (More Readings) 4:00 PM EDT 34 Ozone (O3) 15-Jun-09 (More Readings) 4:00 PM EDT 30 Ozone (O3) 14-Jun-09 (More Readings) 4:00 PM EDT 25 Ozone (O3) 13-Jun-09 (More Readings) 4:00 PM EDT 24 Ozone (O3) 12-Jun-09 (More Readings) 4:00 PM EDT 26 Ozone (O3) 11-Jun-09 (More Readings) 4:00 PM EDT 28 Ozone (O3) 10-Jun-09 (More Readings) 4:00 PM EDT 19 Ozone (O3) 09-Jun-09 (More Readings) 4:00 PM EDT 14 Ozone (O3) 08-Jun-09 (More Readings) 4:00 PM EDT 25 Ozone (O3) 07-Jun-09 (More Readings) 4:00 PM EDT 18 Ozone (O3) 06-Jun-09 (More Readings) 4:00 PM EDT 33 Ozone (O3) 05-Jun-09 (More Readings) 4:00 PM EDT 28 Ozone (O3) 04-Jun-09 (More Readings) 4:00 PM EDT 27 Ozone (O3) 03-Jun-09 (More Readings) 4:00 PM EDT 24 Ozone (O3) 02-Jun-09 (More Readings) 4:00 PM EDT 24 Ozone (O3) 01-Jun-09 (More Readings) 4:00 PM EDT 17 Ozone (O3) 31-May-09 (More Readings) 4:00 PM EDT 19 Ozone (O3) 30-May-09 (More Readings) 4:00 PM EDT 17 Ozone (O3) 29-May-09 (More Readings) 4:00 PM EDT 18 Ozone (O3) 28-May-09 (More Readings) 4:00 PM EDT 10 Ozone (O3) 27-May-09 (More Readings) 4:00 PM EDT 13 Ozone (O3) 26-May-09 (More Readings) 4:00 PM EDT 27 Ozone (O3) 25-May-09 (More Readings) 4:00 PM EDT 27 Ozone (O3) 24-May-09 (More Readings) 4:00 PM EDT 31 Ozone (O3) 23-May-09 (More Readings) 4:00 PM EDT 24 Ozone (O3) 22-May-09 (More Readings) 4:00 PM EDT 22 Ozone (O3) 21-May-09 (More Readings) 4:00 PM EDT 48 Ozone (O3) 20-May-09 (More Readings) 4:00 PM EDT 15 Ozone (O3) 19-May-09 (More Readings) 4:00 PM EDT 35 Ozone (O3) 18-May-09 (More Readings) 4:00 PM EDT 33 Ozone (O3) 17-May-09 (More Readings) 4:00 PM EDT 28 Ozone (O3) 16-May-09 (More Readings) 4:00 PM EDT 24 Ozone (O3) 15-May-09 (More Readings) 4:00 PM EDT 26 Ozone (O3) 14-May-09 (More Readings) 4:00 PM EDT 27 Ozone (O3) 13-May-09 (More Readings) 4:00 PM EDT 32 Ozone (O3) 12-May-09 (More Readings) 4:00 PM EDT 30 Ozone (O3) 11-May-09 (More Readings) 4:00 PM EDT 27 Ozone (O3) 10-May-09 (More Readings) 4:00 PM EDT 11 Ozone (O3) 09-May-09 (More Readings) 4:00 PM EDT 27 Ozone (O3) 08-May-09 (More Readings) 4:00 PM EDT 32 Ozone (O3) 07-May-09 (More Readings) 4:00 PM EDT 17 Ozone (O3) 06-May-09 (More Readings) 4:00 PM EDT 28 Ozone (O3) 05-May-09 (More Readings) 4:00 PM EDT 32 Ozone (O3) 04-May-09 (More Readings) 4:00 PM EDT 33 Ozone (O3) 03-May-09 (More Readings) 4:00 PM EDT 36 Ozone (O3) 02-May-09 (More Readings) 4:00 PM EDT 27 Ozone (O3) 01-May-09 (More Readings) 4:00 PM EDT 31 Ozone (O3) 30-Apr-09 (More Readings) 4:00 PM EDT 31 Ozone (O3) 29-Apr-09 (More Readings) 4:00 PM EDT 30 Ozone (O3) 28-Apr-09 (More Readings) 4:00 PM EDT 14 Ozone (O3) 27-Apr-09 (More Readings) 4:00 PM EDT 40 Ozone (O3) 26-Apr-09 (More Readings) 4:00 PM EDT 27 Ozone (O3) 25-Apr-09 (More Readings) 4:00 PM EDT 36 Ozone (O3) 24-Apr-09 (More Readings) 4:00 PM EDT 36 Ozone (O3) 23-Apr-09 (More Readings) 4:00 PM EDT 25 Ozone (O3) 22-Apr-09 (More Readings) 4:00 PM EDT 25 Ozone (O3) 21-Apr-09 (More Readings) 4:00 PM EDT 21 Ozone (O3) 20-Apr-09 (More Readings) 4:00 PM EDT 31 Ozone (O3) 19-Apr-09 (More Readings) 4:00 PM EDT 36 Ozone (O3) 18-Apr-09 (More Readings) 4:00 PM EDT 28 Ozone (O3) 17-Apr-09 (More Readings) 4:00 PM EDT 34 Ozone (O3) 16-Apr-09 (More Readings) 4:00 PM EDT 35 Ozone (O3) 15-Apr-09 (More Readings) 4:00 PM EDT 33 Ozone (O3) 14-Apr-09 (More Readings) 4:00 PM EDT 29 Ozone (O3) 13-Apr-09 (More Readings) 4:00 PM EDT 30 Ozone (O3) 12-Apr-09 (More Readings) 4:00 PM EDT 25 Ozone (O3) 11-Apr-09 (More Readings) 4:00 PM EDT 29 Ozone (O3) 10-Apr-09 (More Readings) 4:00 PM EDT 28 Ozone (O3) 09-Apr-09 (More Readings) 4:00 PM EDT 29 Ozone (O3) 08-Apr-09 (More Readings) 4:00 PM EDT 25 Ozone (O3) 07-Apr-09 (More Readings) 4:00 PM EDT 23 Ozone (O3) 06-Apr-09 (More Readings) 4:00 PM EDT 16 Ozone (O3) 05-Apr-09 (More Readings) 4:00 PM EDT 22 Ozone (O3) 04-Apr-09 (More Readings) 4:00 PM EDT 21 Ozone (O3) 03-Apr-09 (More Readings) 4:00 PM EDT 25 Ozone (O3) 02-Apr-09 (More Readings) 4:00 PM EDT 33 Ozone (O3) 01-Apr-09 (More Readings) 4:00 PM EDT 22 Ozone (O3) 31-Mar-09 (More Readings) 4:00 PM EDT 22 Ozone (O3) 30-Mar-09 (More Readings) 4:00 PM EDT 17 Ozone (O3) 29-Mar-09 (More Readings) 4:00 PM EDT 25 Ozone (O3) 28-Mar-09 (More Readings) 4:00 PM EDT 32 Ozone (O3) 27-Mar-09 (More Readings) 4:00 PM EDT 25 Ozone (O3) 26-Mar-09 (More Readings) 4:00 PM EDT 17 Fine Particulate Matter (PM2.5) 25-Mar-09 (More Readings) 4:00 PM EDT 29 Ozone (O3) 24-Mar-09 (More Readings) 4:00 PM EDT 28 Ozone (O3) 23-Mar-09 (More Readings) 4:00 PM EDT 25 Ozone (O3) 22-Mar-09 (More Readings) 4:00 PM EDT 28 Ozone (O3) 21-Mar-09 (More Readings) 4:00 PM EDT 29 Ozone (O3) 20-Mar-09 (More Readings) 4:00 PM EDT 27 Ozone (O3) 19-Mar-09 (More Readings) 4:00 PM EDT 25 Ozone (O3) 18-Mar-09 (More Readings) 4:00 PM EDT 30 Ozone (O3) 17-Mar-09 (More Readings) 4:00 PM EDT 27 Ozone (O3) 16-Mar-09 (More Readings) 4:00 PM EDT 24 Ozone (O3) 15-Mar-09 (More Readings) 4:00 PM EDT 33 Ozone (O3) 14-Mar-09 (More Readings) 4:00 PM EDT 28 Ozone (O3) 13-Mar-09 (More Readings) 4:00 PM EDT 25 Ozone (O3) 12-Mar-09 (More Readings) 4:00 PM EDT 26 Ozone (O3) 11-Mar-09 (More Readings) 4:00 PM EDT 25 Ozone (O3) 10-Mar-09 (More Readings) 4:00 PM EDT 23 Ozone (O3) 09-Mar-09 (More Readings) 4:00 PM EDT 20 Ozone (O3) 08-Mar-09 (More Readings) 4:00 PM EDT 27 Ozone (O3) 07-Mar-09 (More Readings) 4:00 PM EST 25 Ozone (O3) 06-Mar-09 (More Readings) 4:00 PM EST 27 Ozone (O3) 05-Mar-09 (More Readings) 4:00 PM EST 24 Ozone (O3) 04-Mar-09 (More Readings) 4:00 PM EST 26 Ozone (O3) 03-Mar-09 (More Readings) 4:00 PM EST 24 Ozone (O3) 02-Mar-09 (More Readings) 4:00 PM EST 21 Ozone (O3) 01-Mar-09 (More Readings) 4:00 PM EST 26 Ozone (O3) 28-Feb-09 (More Readings) 4:00 PM EST 23 Ozone (O3) 27-Feb-09 (More Readings) 4:00 PM EST 24 Ozone (O3) 26-Feb-09 (More Readings) 4:00 PM EST 25 Fine Particulate Matter (PM2.5) 25-Feb-09 (More Readings) 4:00 PM EST 27 Ozone (O3) 24-Feb-09 (More Readings) 4:00 PM EST 24 Ozone (O3) 23-Feb-09 (More Readings) 4:00 PM EST 22 Ozone (O3) 22-Feb-09 (More Readings) 4:00 PM EST 21 Ozone (O3) 21-Feb-09 (More Readings) 4:00 PM EST 25 Ozone (O3) 20-Feb-09 (More Readings) 4:00 PM EST 21 Ozone (O3) 19-Feb-09 (More Readings) 4:00 PM EST 17 Ozone (O3) 18-Feb-09 (More Readings) 4:00 PM EST 22 Ozone (O3) 17-Feb-09 (More Readings) 4:00 PM EST 25 Ozone (O3) 16-Feb-09 (More Readings) 4:00 PM EST 23 Ozone (O3) 15-Feb-09 (More Readings) 4:00 PM EST 23 Ozone (O3) 14-Feb-09 (More Readings) 4:00 PM EST 24 Ozone (O3) 13-Feb-09 (More Readings) 4:00 PM EST 22 Ozone (O3) 12-Feb-09 (More Readings) 4:00 PM EST 13 Ozone (O3) 11-Feb-09 (More Readings) 4:00 PM EST N/A Not Available Not Available 10-Feb-09 (More Readings) 4:00 PM EST 16 Ozone (O3) 09-Feb-09 (More Readings) 4:00 PM EST 24 Ozone (O3) 08-Feb-09 (More Readings) 4:00 PM EST 25 Ozone (O3) 07-Feb-09 (More Readings) 4:00 PM EST 18 Fine Particulate Matter (PM2.5) 06-Feb-09 (More Readings) 4:00 PM EST 23 Ozone (O3) 05-Feb-09 (More Readings) 4:00 PM EST 21 Ozone (O3) 04-Feb-09 (More Readings) 4:00 PM EST 18 Ozone (O3) 03-Feb-09 (More Readings) 4:00 PM EST 21 Ozone (O3) 02-Feb-09 (More Readings) 4:00 PM EST 22 Ozone (O3) 01-Feb-09 (More Readings) 4:00 PM EST 25 Fine Particulate Matter (PM2.5) 31-Jan-09 (More Readings) 4:00 PM EST 22 Ozone (O3) 30-Jan-09 (More Readings) 4:00 PM EST 22 Ozone (O3) 29-Jan-09 (More Readings) 4:00 PM EST 24 Ozone (O3) 28-Jan-09 (More Readings) 4:00 PM EST 12 Fine Particulate Matter (PM2.5) 27-Jan-09 (More Readings) 4:00 PM EST 24 Ozone (O3) 26-Jan-09 (More Readings) 4:00 PM EST 21 Fine Particulate Matter (PM2.5) 25-Jan-09 (More Readings) 4:00 PM EST 22 Ozone (O3) 24-Jan-09 (More Readings) 4:00 PM EST 20 Ozone (O3) 23-Jan-09 (More Readings) 4:00 PM EST 14 Ozone (O3) 22-Jan-09 (More Readings) 4:00 PM EST 17 Ozone (O3) 21-Jan-09 (More Readings) 4:00 PM EST 22 Ozone (O3) 20-Jan-09 (More Readings) 4:00 PM EST 18 Ozone (O3) 19-Jan-09 (More Readings) 4:00 PM EST 12 Fine Particulate Matter (PM2.5) 18-Jan-09 (More Readings) 4:00 PM EST 17 Ozone (O3) 17-Jan-09 (More Readings) 4:00 PM EST 19 Ozone (O3) 16-Jan-09 (More Readings) 4:00 PM EST 19 Ozone (O3) 15-Jan-09 (More Readings) 4:00 PM EST 17 Ozone (O3) 14-Jan-09 (More Readings) 4:00 PM EST 17 Ozone (O3) 13-Jan-09 (More Readings) 4:00 PM EST 18 Ozone (O3) 12-Jan-09 (More Readings) 4:00 PM EST 22 Ozone (O3) 11-Jan-09 (More Readings) 4:00 PM EST 23 Ozone (O3) 10-Jan-09 (More Readings) 4:00 PM EST 17 Ozone (O3) 09-Jan-09 (More Readings) 4:00 PM EST 20 Ozone (O3) 08-Jan-09 (More Readings) 4:00 PM EST 21 Ozone (O3) 07-Jan-09 (More Readings) 4:00 PM EST 12 Ozone (O3) 06-Jan-09 (More Readings) 4:00 PM EST 18 Ozone (O3) 05-Jan-09 (More Readings) 4:00 PM EST 16 Ozone (O3) 04-Jan-09 (More Readings) 4:00 PM EST 20 Ozone (O3) 03-Jan-09 (More Readings) 4:00 PM EST 23 Ozone (O3) 02-Jan-09 (More Readings) 4:00 PM EST 16 Fine Particulate Matter (PM2.5) 01-Jan-09 (More Readings) 4:00 PM EST 21 Ozone (O3)

Air Quality Index (AQI) Categories AQI Colour 0-15 Very Good 16-31 Good 32-49 Moderate 50-99 Poor 100+ Very Poor

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