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AQIDenverMetro-2020.csv
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Date Overall AQI Value Main Pollutant Site Name (of Overall AQI) Site ID (of Overall AQI) Source (of Overall AQI) CO Ozone SO2 PM10 PM25 NO2
01/01/2020 54 NO2 Globeville 08-031-0028 AQS 10 44 4 16 24 54
01/02/2020 50 NO2 Globeville 08-031-0028 AQS 7 43 4 24 27 50
01/03/2020 49 NO2 Globeville 08-031-0028 AQS 7 43 4 29 30 49
01/04/2020 44 Ozone Black Hawk 08-047-0003 AQS 7 44 4 29 23 43
01/05/2020 43 Ozone Black Hawk 08-047-0003 AQS 7 43 1 12 16 43
01/06/2020 48 NO2 Globeville 08-031-0028 AQS 7 43 1 35 25 48
01/07/2020 54 NO2 Globeville 08-031-0028 AQS 9 43 4 36 30 54
01/08/2020 49 NO2 Globeville 08-031-0028 AQS 10 42 6 43 33 49
01/09/2020 44 NO2 I-25 08-031-0027 AQS 8 42 1 23 21 44
01/10/2020 47 Ozone Black Hawk 08-047-0003 AQS 8 47 1 23 30 45
01/11/2020 57 PM2.5 Globeville 08-031-0028 AQS 8 44 3 27 57 43
01/12/2020 45 NO2 Globeville 08-031-0028 AQS 10 44 3 14 25 45
01/13/2020 56 NO2 Globeville 08-031-0028 AQS 10 44 4 53 44 56
01/14/2020 70 NO2 DENVER - CAMP 08-031-0002 AQS 17 48 9 63 59 70
01/15/2020 44 Ozone Mines Peak 08-019-0006 AQS 10 44 1 37 33 43
01/16/2020 57 PM10 DENVER - CAMP 08-031-0002 AQS 9 45 4 57 55 43
01/17/2020 65 NO2 DENVER - CAMP 08-031-0002 AQS 14 47 10 59 55 65
01/18/2020 58 Ozone Black Hawk 08-047-0003 AQS 9 58 1 25 30 46
01/19/2020 54 NO2 Globeville 08-031-0028 AQS 10 47 3 29 52 54
01/20/2020 74 PM10 Tri County Health Dept. Bldg. 08-001-0008 AQS 16 47 4 74 65 55
01/21/2020 103 PM2.5 Globeville 08-031-0028 AQS 18 44 10 93 103 76
01/22/2020 57 PM10 Tri County Health Dept. Bldg. 08-001-0008 AQS 16 49 7 57 48 55
01/23/2020 51 NO2 Globeville 08-031-0028 AQS 6 49 3 31 38 51
01/24/2020 61 PM10 Tri County Health Dept. Bldg. 08-001-0008 AQS 14 43 7 61 54 61
01/25/2020 48 PM2.5 Globeville 08-031-0028 AQS 13 43 7 34 48 45
01/26/2020 45 NO2 DENVER - CAMP 08-031-0002 AQS 11 44 3 20 28 45
01/27/2020 52 PM2.5 Globeville 08-031-0028 AQS 13 43 3 37 52 45
01/28/2020 50 NO2 Globeville 08-031-0028 AQS 8 44 4 33 40 50
01/29/2020 44 Ozone Black Hawk 08-047-0003 AQS 10 44 3 34 42 43
01/30/2020 60 PM2.5 Globeville 08-031-0028 AQS 7 44 4 24 60 49
01/31/2020 55 NO2 Globeville 08-031-0028 AQS 8 44 6 30 38 55
02/01/2020 54 Ozone Black Hawk 08-047-0003 AQS 8 54 4 22 20 53
02/02/2020 50 Ozone Aurora East 08-005-0006 AQS 6 50 3 14 13 44
02/03/2020 46 Ozone Mines Peak 08-019-0006 AQS 5 46 0 6 14 17
02/04/2020 40 Ozone Black Hawk 08-047-0003 AQS 6 40 0 6 25 38
02/05/2020 52 PM2.5 Globeville 08-031-0028 AQS 8 42 3 19 52 51
02/06/2020 57 NO2 Globeville 08-031-0028 AQS 8 40 3 17 33 57
02/07/2020 43 Ozone Aurora East 08-005-0006 AQS 5 43 0 6 40 38
02/08/2020 85 NO2 DENVER - CAMP 08-031-0002 AQS 16 47 6 27 66 85
02/09/2020 47 Ozone Black Hawk 08-047-0003 AQS 13 47 1 6 26 42
02/10/2020 47 PM2.5 Globeville 08-031-0028 AQS 10 47 4 14 47 43
02/11/2020 66 NO2 Globeville 08-031-0028 AQS 11 51 4 27 59 66
02/12/2020 72 NO2 Globeville 08-031-0028 AQS 13 44 6 26 55 72
02/13/2020 59 PM2.5 Globeville 08-031-0028 AQS 7 46 1 13 59 46
02/14/2020 87 PM2.5 Globeville 08-031-0028 AQS 13 48 10 58 87 84
02/15/2020 50 Ozone Black Hawk 08-047-0003 AQS 9 50 1 25 35 46
02/16/2020 60 PM2.5 Globeville 08-031-0028 AQS 9 44 4 31 60 57
02/17/2020 53 PM2.5 Globeville 08-031-0028 AQS 9 44 1 19 53 46
02/18/2020 46 Ozone Aurora East 08-005-0006 AQS 3 46 0 18 43 40
02/19/2020 46 PM2.5 Globeville 08-031-0028 AQS 7 45 0 14 46 42
02/20/2020 65 PM2.5 Globeville 08-031-0028 AQS 8 49 1 34 65 48
02/21/2020 62 NO2 Globeville 08-031-0028 AQS 17 50 3 53 56 62
02/22/2020 60 NO2 DENVER - CAMP 08-031-0002 AQS 11 44 9 46 52 60
02/23/2020 45 Ozone Black Hawk 08-047-0003 AQS 10 45 1 13 34 41
02/24/2020 48 NO2 Globeville 08-031-0028 AQS 6 46 1 34 24 48
02/25/2020 44 Ozone Black Hawk 08-047-0003 AQS 5 44 0 15 16 27
02/26/2020 45 Ozone Aurora East 08-005-0006 AQS 7 45 1 22 30 43
02/27/2020 49 Ozone Black Hawk 08-047-0003 AQS 7 49 1 24 20 42
02/28/2020 49 NO2 Globeville 08-031-0028 AQS 8 47 4 40 33 49
02/29/2020 49 NO2 Globeville 08-031-0028 AQS 11 44 4 41 32 49
03/01/2020 42 Ozone Black Hawk 08-047-0003 AQS 8 42 1 13 23 42
03/02/2020 51 PM2.5 Globeville 08-031-0028 AQS 6 46 1 20 51 32
03/03/2020 51 NO2 Globeville 08-031-0028 AQS 8 44 6 36 34 51
03/04/2020 46 Ozone Black Hawk 08-047-0003 AQS 6 46 1 33 25 40
03/05/2020 44 Ozone Black Hawk 08-047-0003 AQS 6 44 0 19 21 38
03/06/2020 54 PM10 Tri County Health Dept. Bldg. 08-001-0008 AQS 10 49 3 54 50 51
03/07/2020 50 Ozone ROCKY FLATS-N 08-059-0006 AQS 7 50 3 28 25 39
03/08/2020 48 Ozone ROCKY FLATS-N 08-059-0006 AQS 6 48 3 18 17 43
03/09/2020 45 Ozone Aurora East 08-005-0006 AQS 5 45 0 16 36 43
03/10/2020 53 PM10 Tri County Health Dept. Bldg. 08-001-0008 AQS 7 45 4 53 39 43
03/11/2020 51 NO2 Globeville 08-031-0028 AQS 6 47 3 21 24 51
03/12/2020 43 Ozone Black Hawk 08-047-0003 AQS 5 43 1 19 17 38
03/13/2020 35 PM2.5 Globeville 08-031-0028 AQS 6 31 0 15 35 28
03/14/2020 44 PM2.5 Globeville 08-031-0028 AQS 6 36 0 10 44 19
03/15/2020 57 PM2.5 Globeville 08-031-0028 AQS 8 44 1 18 57 33
03/16/2020 47 PM2.5 Globeville 08-031-0028 AQS 9 46 3 40 47 44
03/17/2020 49 PM2.5 Globeville 08-031-0028 AQS 7 49 1 21 49 30
03/18/2020 52 PM2.5 Globeville 08-031-0028 AQS 10 49 4 49 52 47
03/19/2020 37 Ozone Black Hawk 08-047-0003 AQS 5 37 1 3 15 23
03/20/2020 52 PM2.5 DENVER - CAMP 08-031-0002 AQS 6 48 0 10 52 43
03/21/2020 60 PM2.5 Globeville 08-031-0028 AQS 7 50 3 24 60 47
03/22/2020 51 Ozone HIGHLAND RESERVOIR 08-005-0002 AQS 6 51 1 15 36 41
03/23/2020 50 Ozone Aurora East 08-005-0006 AQS 6 50 1 28 28 46
03/24/2020 51 Ozone Chatfield State Park 08-035-0004 AQS 5 51 1 26 27 41
03/25/2020 58 Ozone Aurora East 08-005-0006 AQS 7 58 3 38 29 44
03/26/2020 54 Ozone Black Hawk 08-047-0003 AQS 5 54 1 26 53 37
03/27/2020 49 Ozone Black Hawk 08-047-0003 AQS 5 49 0 13 36 25
03/28/2020 50 Ozone Aurora East 08-005-0006 AQS 3 50 0 8 20 41
03/29/2020 47 Ozone Black Hawk 08-047-0003 AQS 3 47 1 13 16 39
03/30/2020 45 Ozone Aurora East 08-005-0006 AQS 5 45 0 20 32 38
03/31/2020 48 Ozone HIGHLAND RESERVOIR 08-005-0002 AQS 5 48 1 23 23 38
04/01/2020 51 Ozone ROCKY FLATS-N 08-059-0006 AQS 5 51 3 45 28 42
04/02/2020 31 Ozone Aurora East 08-005-0006 AQS 5 31 0 5 18 18
04/03/2020 42 Ozone Black Hawk 08-047-0003 AQS 5 42 1 12 41 33
04/04/2020 44 Ozone HIGHLAND RESERVOIR 08-005-0002 AQS 3 44 1 14 27 32
04/05/2020 48 Ozone ROCKY FLATS-N 08-059-0006 AQS 6 48 1 17 23 42
04/06/2020 54 Ozone ROCKY FLATS-N 08-059-0006 AQS 6 54 3 34 26 44
04/07/2020 64 Ozone HIGHLAND RESERVOIR 08-005-0002 AQS 5 64 3 36 25 40
04/08/2020 51 Ozone Aurora East 08-005-0006 AQS 5 51 3 32 25 46
04/09/2020 50 Ozone Chatfield State Park 08-035-0004 AQS 5 50 0 29 45 31
04/10/2020 54 Ozone Aurora East 08-005-0006 AQS 5 54 1 52 41 40
04/11/2020 58 Ozone Black Hawk 08-047-0003 AQS 3 58 1 31 21 42
04/12/2020 44 Ozone Black Hawk 08-047-0003 AQS 2 44 0 6 37 13
04/13/2020 46 Ozone Black Hawk 08-047-0003 AQS 3 46 0 . 38 21
04/14/2020 49 Ozone Chatfield State Park 08-035-0004 AQS 5 49 0 . 39 38
04/15/2020 46 Ozone HIGHLAND RESERVOIR 08-005-0002 AQS 5 46 1 17 26 39
04/16/2020 61 NO2 Globeville 08-031-0028 AQS 3 50 0 . 38 61
04/17/2020 77 PM2.5 Globeville 08-031-0028 AirNow 8 71 1 . 77 71
04/18/2020 67 Ozone ROCKY FLATS-N 08-059-0006 AQS 8 67 1 . 59 44
04/19/2020 58 Ozone HIGHLAND RESERVOIR 08-005-0002 AQS 5 58 0 . 25 22
04/20/2020 64 Ozone Aurora East 08-005-0006 AQS 3 64 1 . 30 43
04/21/2020 64 Ozone ROCKY FLATS-N 08-059-0006 AQS 3 64 1 29 35 42
04/22/2020 54 Ozone Chatfield State Park 08-035-0004 AQS 5 54 3 . 38 46
04/23/2020 48 Ozone Aurora East 08-005-0006 AQS 3 48 0 . 21 30
04/24/2020 46 Ozone Black Hawk 08-047-0003 AQS 2 46 0 . 13 33
04/25/2020 50 Ozone Aurora East 08-005-0006 AQS 2 50 0 . 19 38
04/26/2020 45 Ozone HIGHLAND RESERVOIR 08-005-0002 AQS 2 45 3 . 16 25
04/27/2020 61 Ozone Aurora East 08-005-0006 AQS 6 61 1 26 24 34
04/28/2020 61 Ozone Chatfield State Park 08-035-0004 AQS 6 61 1 . 23 34
04/29/2020 84 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 5 84 1 . 24 39
04/30/2020 49 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 6 49 3 . 45 47
05/01/2020 77 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 5 77 1 38 30 35
05/02/2020 40 Ozone Black Hawk 08-047-0003 AQS 5 40 0 16 29 12
05/03/2020 74 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 5 74 1 16 43 19
05/04/2020 74 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 5 74 1 13 21 18
05/05/2020 84 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 3 84 1 21 23 37
05/06/2020 87 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 6 87 1 26 32 31
05/07/2020 90 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 5 90 1 44 38 42
05/08/2020 54 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 3 54 0 14 16 21
05/09/2020 49 Ozone Chatfield State Park 08-035-0004 AQS 3 49 0 16 20 15
05/10/2020 50 Ozone Chatfield State Park 08-035-0004 AQS 3 50 0 15 20 15
05/11/2020 55 PM2.5 Globeville 08-031-0028 AQS 5 43 0 19 55 27
05/12/2020 70 PM2.5 Globeville 08-031-0028 AQS 7 54 1 24 70 31
05/13/2020 67 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 7 67 4 31 50 45
05/14/2020 49 Ozone Black Hawk 08-047-0003 AQS 5 49 1 21 41 29
05/15/2020 58 Ozone Chatfield State Park 08-035-0004 AQS 5 58 0 18 24 25
05/16/2020 74 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 3 74 0 13 20 24
05/17/2020 74 Ozone Chatfield State Park 08-035-0004 AQS 7 74 9 15 23 25
05/18/2020 105 Ozone ROCKY FLATS-N 08-059-0006 AQS 6 105 21 23 47 32
05/19/2020 97 Ozone ROCKY FLATS-N 08-059-0006 AQS 5 97 3 51 34 39
05/20/2020 67 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 3 67 1 34 23 22
05/21/2020 77 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 3 77 1 28 18 42
05/22/2020 80 Ozone Aurora East 08-005-0006 AQS 3 80 13 37 23 40
05/23/2020 84 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 5 84 1 35 25 27
05/24/2020 42 Ozone HIGHLAND RESERVOIR 08-005-0002 AQS 3 42 1 14 22 21
05/25/2020 44 Ozone Chatfield State Park 08-035-0004 AQS 5 44 0 . 16 25
05/26/2020 67 Ozone Chatfield State Park 08-035-0004 AQS 5 67 3 26 18 32
05/27/2020 49 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 5 49 3 39 26 34
05/28/2020 61 Ozone Chatfield State Park 08-035-0004 AQS 5 61 0 24 38 24
05/29/2020 77 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 5 77 1 31 41 31
05/30/2020 64 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 5 64 1 34 27 31
05/31/2020 46 Ozone Welby 08-001-3001 AQS 5 46 1 27 22 22
06/01/2020 51 Ozone HIGHLAND RESERVOIR 08-005-0002 AQS 6 51 4 . 26 32
06/02/2020 71 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 5 71 1 44 32 37
06/03/2020 64 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 5 64 0 . 45 33
06/04/2020 47 Ozone Aurora East 08-005-0006 AQS 6 47 1 . 34 33
06/05/2020 64 Ozone ROCKY FLATS-N 08-059-0006 AQS 5 64 3 . 30 39
06/06/2020 46 Ozone Black Hawk 08-047-0003 AQS 7 46 4 . 28 32
06/07/2020 47 Ozone Black Hawk 08-047-0003 AQS 8 47 3 . 21 25
06/08/2020 61 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 5 61 3 51 27 32
06/09/2020 43 Ozone Chatfield State Park 08-035-0004 AQS 5 43 0 6 15 24
06/10/2020 45 Ozone Aurora East 08-005-0006 AQS 5 45 1 19 15 27
06/11/2020 84 Ozone ROCKY FLATS-N 08-059-0006 AQS 5 84 3 28 38 42
06/12/2020 87 Ozone ROCKY FLATS-N 08-059-0006 AQS 5 87 1 31 27 29
06/13/2020 77 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 5 77 3 31 32 26
06/14/2020 80 Ozone Black Hawk 08-047-0003 AQS 7 80 1 16 28 42
06/15/2020 126 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 7 126 1 40 52 43
06/16/2020 67 Ozone ROCKY FLATS-N 08-059-0006 AQS 6 67 3 42 60 41
06/17/2020 147 Ozone ROCKY FLATS-N 08-059-0006 AQS 6 147 3 49 64 39
06/18/2020 47 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 5 47 0 23 31 25
06/19/2020 44 PM2.5 DENVER - CAMP 08-031-0002 AQS 6 43 3 17 44 31
06/20/2020 71 Ozone Aurora East 08-005-0006 AQS 7 71 3 20 31 32
06/21/2020 43 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 7 43 3 17 21 24
06/22/2020 80 Ozone Chatfield State Park 08-035-0004 AQS 5 80 1 22 22 26
06/23/2020 97 Ozone Chatfield State Park 08-035-0004 AQS 5 97 10 19 27 28
06/24/2020 60 PM10 Tri County Health Dept. Bldg. 08-001-0008 AQS 5 58 3 60 45 25
06/25/2020 54 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 5 54 1 44 32 29
06/26/2020 61 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 5 61 1 29 32 40
06/27/2020 93 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AQS 5 93 3 15 30 28
06/28/2020 50 Ozone Aurora East 08-005-0006 AQS 8 50 3 18 38 34
06/29/2020 53 PM2.5 DENVER - CAMP 08-031-0002 AQS 7 47 3 40 53 40
06/30/2020 77 Ozone ROCKY FLATS-N 08-059-0006 AQS 5 77 1 24 27 27
07/01/2020 80 Ozone ROCKY FLATS-N 08-059-0006 AirNow 2 80 . 28 28 .
07/02/2020 80 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 80 . 57 52 .
07/03/2020 80 Ozone La Casa 08-031-0026 AirNow . 80 . 43 34 .
07/04/2020 53 PM2.5 La Casa 08-031-0026 AirNow . 49 . 34 53 .
07/05/2020 52 PM2.5 DENVER - CAMP 08-031-0002 AQS . 50 . 16 52 .
07/06/2020 71 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 71 . 25 25 .
07/07/2020 46 Ozone ROCKY FLATS-N 08-059-0006 AirNow . 46 . 24 24 .
07/08/2020 90 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 90 . 50 50 .
07/09/2020 119 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 119 . 66 49 .
07/10/2020 147 Ozone ROCKY FLATS-N 08-059-0006 AirNow . 147 . 44 42 .
07/11/2020 126 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 126 . 25 31 .
07/12/2020 84 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 84 . 41 35 .
07/13/2020 64 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 64 . 51 37 .
07/14/2020 80 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 80 . 31 48 .
07/15/2020 74 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 74 . 26 55 .
07/16/2020 54 Ozone ROCKY FLATS-N 08-059-0006 AirNow . 54 . 44 43 .
07/17/2020 71 Ozone HIGHLAND RESERVOIR 08-005-0002 AirNow . 71 . 38 30 .
07/18/2020 64 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 64 . 30 26 .
07/19/2020 51 Ozone La Casa 08-031-0026 AirNow . 51 . 26 36 .
07/20/2020 97 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 97 . . 29 .
07/21/2020 122 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 122 . . 42 .
07/22/2020 101 Ozone ROCKY FLATS-N 08-059-0006 AirNow . 101 . . 36 .
07/23/2020 80 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 80 . . 33 .
07/24/2020 71 Ozone Chatfield State Park 08-035-0004 AirNow . 71 . . 29 .
07/25/2020 45 Ozone Aurora East 08-005-0006 AirNow . 45 . . 20 .
07/26/2020 50 Ozone Chatfield State Park 08-035-0004 AirNow . 50 . . 23 .
07/27/2020 97 Ozone ROCKY FLATS-N 08-059-0006 AirNow . 97 . . 29 .
07/28/2020 71 Ozone HIGHLAND RESERVOIR 08-005-0002 AirNow . 71 . . 33 .
07/29/2020 98 PM2.5 Globeville 08-031-0028 AirNow . 74 . . 98 .
07/30/2020 71 Ozone Chatfield State Park 08-035-0004 AirNow . 71 . . 70 .
07/31/2020 84 Ozone Chatfield State Park 08-035-0004 AirNow . 84 . . 28 .
08/01/2020 67 Ozone Chatfield State Park 08-035-0004 AirNow . 67 . . 28 .
08/02/2020 100 Ozone HIGHLAND RESERVOIR 08-005-0002 AirNow . 100 . . 38 .
08/03/2020 108 Ozone Chatfield State Park 08-035-0004 AirNow . 108 . . 44 .
08/04/2020 119 Ozone Chatfield State Park 08-035-0004 AirNow . 119 . . 44 .
08/05/2020 93 Ozone ROCKY FLATS-N 08-059-0006 AirNow . 93 . . 52 .
08/06/2020 61 Ozone Chatfield State Park 08-035-0004 AirNow . 61 . . 47 .
08/07/2020 80 Ozone ROCKY FLATS-N 08-059-0006 AirNow . 80 . . 28 .
08/08/2020 119 Ozone ROCKY FLATS-N 08-059-0006 AirNow . 119 . . 46 .
08/09/2020 90 Ozone Welby 08-001-3001 AirNow . 90 . . 59 .
08/10/2020 119 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 119 . . 43 .
08/11/2020 71 Ozone ROCKY FLATS-N 08-059-0006 AirNow . 71 . . 54 .
08/12/2020 74 Ozone Chatfield State Park 08-035-0004 AirNow . 74 . . 50 .
08/13/2020 126 Ozone ROCKY FLATS-N 08-059-0006 AirNow . 126 . . 81 .
08/14/2020 105 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 105 . . 86 .
08/15/2020 105 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 105 . . 65 .
08/16/2020 97 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 97 . . 72 .
08/17/2020 136 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 136 . . 59 .
08/18/2020 90 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 90 . . 75 .
08/19/2020 90 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 90 . . 70 .
08/20/2020 108 Ozone Chatfield State Park 08-035-0004 AirNow . 108 . . 78 .
08/21/2020 161 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 161 . . 96 .
08/22/2020 156 Ozone Chatfield State Park 08-035-0004 AirNow . 156 . . 140 .
08/23/2020 161 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 161 . . 135 .
08/24/2020 150 Ozone Welby 08-001-3001 AirNow . 150 . . 114 .
08/25/2020 154 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 154 . . 91 .
08/26/2020 143 Ozone Chatfield State Park 08-035-0004 AirNow . 143 . . 64 .
08/27/2020 119 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 119 . . 48 .
08/28/2020 71 Ozone HIGHLAND RESERVOIR 08-005-0002 AirNow . 71 . . 55 .
08/29/2020 58 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 58 . . 48 .
08/30/2020 64 Ozone Aurora East 08-005-0006 AirNow . 64 . . 35 .
08/31/2020 67 Ozone Chatfield State Park 08-035-0004 AirNow . 67 . . 40 .
09/01/2020 87 Ozone ROCKY FLATS-N 08-059-0006 AirNow . 87 . . 38 .
09/02/2020 93 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 93 . . 31 .
09/03/2020 67 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 67 . . 55 .
09/04/2020 101 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 101 . . 53 .
09/05/2020 58 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 58 . . 39 .
09/06/2020 136 PM2.5 La Casa 08-031-0026 AirNow . 74 . . 136 .
09/07/2020 123 PM2.5 Chatfield State Park 08-035-0004 AirNow . 93 . . 123 .
09/08/2020 23 Ozone Aurora East 08-005-0006 AirNow . 23 . . 13 .
09/09/2020 29 PM2.5 La Casa 08-031-0026 AirNow . 27 . . 29 .
09/10/2020 46 PM2.5 I-25 08-031-0027 AirNow . 29 . . 46 .
09/11/2020 56 PM2.5 Tri County Health Dept. Bldg. 08-001-0008 AirNow . 47 . . 56 .
09/12/2020 71 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 71 . . 32 .
09/13/2020 67 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 67 . . 29 .
09/14/2020 61 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 61 . . 37 .
09/15/2020 71 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 71 . . 57 .
09/16/2020 116 PM2.5 DENVER - NJH-E 08-031-0013 AirNow . 100 . . 116 .
09/17/2020 111 PM2.5 DENVER - NJH-E 08-031-0013 AirNow . 77 . . 111 .
09/18/2020 128 PM2.5 DENVER - NJH-E 08-031-0013 AirNow . 101 . . 128 .
09/19/2020 77 PM2.5 La Casa 08-031-0026 AirNow . 74 . . 77 .
09/20/2020 72 PM2.5 La Casa 08-031-0026 AirNow . 64 . . 72 .
09/21/2020 84 Ozone NATIONAL RENEWABLE ENERGY LABS - NREL 08-059-0011 AirNow . 84 . . 62 .
09/22/2020 67 Ozone HIGHLAND RESERVOIR 08-005-0002 AirNow . 67 . . 59 .
09/23/2020 84 Ozone ROCKY FLATS-N 08-059-0006 AirNow . 84 . . 70 .
09/24/2020 90 Ozone ROCKY FLATS-N 08-059-0006 AirNow . 90 . . 64 .
09/25/2020 90 Ozone ROCKY FLATS-N 08-059-0006 AirNow . 90 . . 73 .
09/26/2020 67 PM2.5 Globeville 08-031-0028 AirNow . 49 . . 67 .