OKC AQI 2021
CO Ozone NO2 SO2 PM-2.5 PM-10
(Conc ppm) (AQI) (Conc ppm) (AQI) (Conc ppm) (AQI) (Conc ppm) (AQI) (Conc μg/m3) (AQI) (Conc μg/m3) (AQI)
2021/Jan/01 .3 3 0.035 32 0.015 14 0 0 6.6 28 8 7
2021/Jan/02 .9 10 0.036 33 0.035 33 0 0 8.5 35 13 12
2021/Jan/03 .9 10 0.025 23 0.032 30 0 0 15.9 59 22 20
2021/Jan/04 1.0 11 0.033 31 0.032 30 0 0 14.0 55 23 21
2021/Jan/05 1.1 13 0.038 35 0.044 42 0 0 8.2 34 22 20
2021/Jan/06 .4 5 0.031 29 0.025 24 0 0 8.5 35 16 15
2021/Jan/07 .4 5 0.027 25 0.015 14 0 0 10.9 45 14 13
2021/Jan/08 .7 8 0.025 23 0.028 26 0 0 18.4 64 23 21
2021/Jan/09 1.0 11 0.032 30 0.033 31 0 0 24.0 76 32 30
2021/Jan/10 .5 6 .023 21 .013 12 0 0 17.8 63 23 21
2021/Jan/11 .5 6 .033 31 .033 31 0 0 13.5 54 24 22
2021/Jan/12 .5 6 .036 33 .022 21 0 0 13.1 53 23 21
2021/Jan/13 .4 5 .036 33 .025 24 0 0 14.8 57 27 25
2021/Jan/14 .3 3 .038 35 .021 20 0 0 6.2 26 33 31
2021/Jan/15 .3 3 .036 33 .005 5 0 0 4.8 20 28 26
2021/Jan/16 .5 6 .033 31 .026 25 0 0 8.8 37 36 33
2021/Jan/17 .8 9 .038 35 .035 33 0 0 6.5 27 19 18
2021/Jan/18 .9 10 .041 38 .031 29 0 0 6.8 28 27 25
2021/Jan/19 .5 6 .030 28 .032 30 0 0 6.0 25 17 16
2021/Jan/20 .7 8 .028 26 .030 28 0 0 10.1 42 24 22
2021/Jan/21 .9 10 .016 15 .024 23 0 0 15.6 58 25 23
2021/Jan/22 .6 7 .036 33 .021 20 0 0 10.9 45 20 19
2021/Jan/23 .7 8 .027 25 .014 13 0 0 11.3 47 20 19
2021/Jan/24 .6 7 .012 11 .009 8 0 0 13.3 54 18 17
2021/Jan/25 .5 6 .019 18 .007 7 0 0 6.0 25 9 8
2021/Jan/26 .5 6 .025 23 .016 15 0 0 21.1 70 24 22
2021/Jan/27 .5 6 .036 33 .020 19 0 0 16.2 60 19 18
2021/Jan/28 .7 8 .033 31 .028 26 0 0 16.2 60 26 24
2021/Jan/29 .8 9 .040 37 .033 31 0 0 15.0 57 26 24
2021/Jan/30 .7 8 .038 35 .013 12 0 0 12.2 51 20 19
2021/Jan/31 .4 5 .030 28 .012 11 0 0 12.3 51 16 15
2021/Feb/01 1.0 11 .038 35 .042 40 0 0 11.7 49 22 20
2021/Feb/02 1.0 11 .043 40 .028 26 0 0 11.2 47 32 30
2021/Feb/03 .7 8 .053 49 .027 25 .001 1 16.1 59 50 46
2021/Feb/04 .6 7 .036 33 .030 28 0 0 8.4 35 20 19
2021/Feb/05 .9 10 .040 37 .038 36 0 0 7.8 33 22 20
2021/Feb/06 .8 9 .032 30 .016 15 .001 1 12.9 53 19 18
2021/Feb/07 .6 7 .026 24 .011 10 0 0 16.5 60 23 21
2021/Feb/08 .6 7 .024 22 .008 8 0 0 12.2 51 15 14
2021/Feb/09 .5 6 .025 23 .013 12 0 0 18.4 64 23 21
2021/Feb/10 .5 6 .033 31 .009 8 0 0 17.0 61 20 19
2021/Feb/11 .5 6 .033 31 .010 9 0 0 18.5 64 25 23
2021/Feb/12 .5 6 .032 30 .011 10 0 0 13.6 54 22 20
2021/Feb/13 .5 6 .034 31 .010 9 0 0 10.0 42 29 27
2021/Feb/14 .5 6 .037 34 .005 5 0 0 7.8 33 18 17
2021/Feb/15 .5 6 .030 28 .012 11 0 0 8.1 34 14 13
2021/Feb/16 .7 8 .033 31 .034 32 0 0 10.8 45 27 25
2021/Feb/17 .6 7 .043 40 .012 11 0 0 17.8 63 23 21
2021/Feb/18 .6 7 .049 45 .047 44 0 0 26.8 82 34 31
2021/Feb/19 .9 10 .050 46 .049 46 0 0 28.1 85 39 36
2021/Feb/20 .9 10 .057 58 .036 34 0 0 29.9 88 49 45
2021/Feb/21 .9 10 .041 38 .032 30 0 0 13.4 54 21 19
2021/Feb/22 1.0 11 .044 41 .037 35 0 0 6.9 29 19 18
2021/Feb/23 1.2 14 .051 47 .039 37 0 0 9.8 41 31 29
2021/Feb/24 .8 9 .044 41 .014 13 0 0 5.2 22 15 14
2021/Feb/25 .8 9 .041 38 .019 18 0 0 9.6 40 19 18
2021/Feb/26 5.8 64 .039 36 .029 27 0 0 11.4 48 23 21
2021/Feb/27 .6 7 .023 21 .016 15 0 0 13.5 54 17 16
2021/Feb/28 .5 6 .040 37 .007 7 0 0 8.0 33 13 12
2021/Mar/01 .5 6 .043 40 .037 35 .002 3 8.6 36 18 17
2021/Mar/02 .7 8 .050 46 .035 33 0 0 11.1 46 27 25
2021/Mar/03 .6 7 .054 50 .042 40 0 0 10.5 44 29 27
2021/Mar/04 .6 7 .064 80 .026 25 0 0 15.6 58 59 53
2021/Mar/05 .5 6 .046 43 .021 20 0 0 21.1 70 26 24
2021/Mar/06 .7 8 .049 45 .040 38 0 0 16.7 61 28 26
2021/Mar/07 .7 8 .053 49 .020 19 .001 1 16.0 59 27 25
2021/Mar/08 .6 7 .063 77 .035 33 0 0 21.3 70 43 40
2021/Mar/09 .6 7 .050 46 .023 22 0 0 14.2 55 33 31
2021/Mar/10 .5 6 .044 41 .017 16 0 0 11.6 48 30 28
2021/Mar/11 .5 6 .028 26 .013 12 0 0 10.5 44 21 19
2021/Mar/12 .7 8 .027 25 .020 19 0 0 19.2 66 33 31
2021/Mar/13 .6 7 .033 31 .011 10 0 0 13.5 54 21 19
2021/Mar/14 .7 8 .027 25 .020 19 0 0 19.2 66 33 31
2021/Mar/15 .5 6 .044 41 .027 25 0 0 9.6 40 56 51
2021/Mar/16 .7 8 .057 58 .026 25 0 0 15.3 58 46 43
2021/Mar/17 .5 6 .028 26 .009 8 0 0 8.8 37 16 15
2021/Mar/18 .3 3 .038 35 .006 6 0 0 8.3 35 12 11
2021/Mar/19 .6 7 .048 44 .032 30 0 0 12.1 51 20 19
2021/Mar/20 .7 8 .054 50 .031 29 0 0 17.3 62 28 26
2021/Mar/21 .5 6 .053 49 .013 12 .001 1 17.0 61 38 35
2021/Mar/22 .6 7 .042 39 .017 16 0 0 14.4 56 21 19
2021/Mar/23 .4 5 .041 38 .010 9 0 0 3.8 16 8 7
2021/Mar/24 .5 6 .041 38 .017 16 0 0 3.9 16 8 7
2021/Mar/25 .8 9 .040 37 .033 31 0 0 9.3 39 18 17
2021/Mar/26 .9 10 .060 67 .032 30 0 0 7.6 32 25 23
2021/Mar/27 .6 7 .050 46 .022 21 .001 1 11.7 49 23 21
2021/Mar/28 .6 7 .050 46 .039 37 0 0 7.9 33 14 13
2021/Mar/29 .6 7 .059 64 .032 30 0 0 9.5 40 26 24
2021/Mar/30 .4 5 .047 44 .021 20 0 0 10.2 43 37 34
2021/Mar/31 .6 7 .049 45 .034 32 0 0 6.7 28 20 19
2021/Apr/01 .8 9 .063 77 .040 38 .001 1 36.7 104 63 55
2021/Apr/02 .7 8 .062 74 .031 29 0 0 37.5 106 72 59
2021/Apr/03 .8 9 .061 71 .029 27 0 0 15.8 59 31 29
2021/Apr/04 .7 8 .047 44 .016 15 0 0 12.2 51 24 22
2021/Apr/05 .7 8 .052 48 .020 19 0 0 10.9 45 28 26
2021/Apr/06 .7 8 .045 42 .017 16 0 0 12.9 53 45 42
2021/Apr/07 .5 6 .042 39 .005 5 0 0 6.8 28 25 23
2021/Apr/08 .4 5 .055 51 .027 25 0 0 8.5 35 28 26
2021/Apr/09 .8 9 .048 44 .027 25 0 0 18.7 65 47 44
2021/Apr/10 .6 7 .047 44 .034 32 0 0 8.8 37 18 17
2021/Apr/11 .7 8 .060 67 .037 35 .001 1 11.2 47 30 28
2021/Apr/12 .6 7 .048 44 .014 13 0 0 15.9 59 33 31
2021/Apr/13 .5 6 .050 46 .018 17 0 0 27.5 83 45 42
2021/Apr/14 .7 8 .037 34 .021 20 0 0 9.5 40 18 17
2021/Apr/15 .7 8 .037 34 .018 17 0 0 17.1 62 28 26
2021/Apr/16 .7 8 .031 29 .018 17 0 0 10.4 43 14 13
2021/Apr/17 .4 5 .030 28 .006 6 0 0 10.6 44 13 12
2021/Apr/18 .6 7 .046 43 .019 18 0 0 9.5 40 17 16
2021/Apr/19 .7 8 .057 58 .028 26 0 0 10.9 45 22 20
2021/Apr/20 .6 7 .042 39 .026 25 0 0 8.8 37 17 16
2021/Apr/21 .5 6 .049 45 .029 27 0 0 8.4 35 19 18
2021/Apr/22 .7 8 .045 42 .025 24 0 0 13.8 55 36 33
2021/Apr/23 .9 10 .035 32 .023 22 0 0 17.7 63 29 27
2021/Apr/24 .8 9 .049 45 .034 32 0 0 16.4 60 24 22
2021/Apr/25 .9 10 .056 54 .017 16 0 0 11.5 48 21 19
2021/Apr/26 .6 7 .060 67 .021 20 0 0 11.5 48 29 27
2021/Apr/27 .8 9 .042 39 .025 24 0 0 17.3 62 35 32
2021/Apr/28 .7 8 .025 23 .018 17 0 0 10.9 45 17 16
2021/Apr/29 .7 8 .046 43 .028 26 0 0 16.9 61 31 29
2021/Apr/30 .8 9 .059 64 .035 33 0 0 10.6 44 24 22
2021/May/01 .8 9 .037 34 .022 21 0 0 15.6 58 27 25
2021/May/02 .8 9 .040 37 .013 12 0 0 12.0 50 18 17
2021/May/03 .6 7 .040 37 .015 14 0 0 8.5 35 18 17
2021/May/04 .4 5 .041 38 .019 18 0 0 7.9 33 17 16
2021/May/05 .6 7 .059 64 .049 46 0 0 8.7 36 22 20
2021/May/06 .6 7 .052 48 .011 10 0 0 8.1 34 18 17
2021/May/07 .8 9 .068 93 .030 28 0 0 10.8 45 36 33
2021/May/08 .7 8 .051 47 .020 19 0 0 12.5 52 27 25
2021/May/09 .6 7 .038 35 .007 7 0 0 7.3 30 19 18
2021/May/10 .5 6 .042 39 .013 12 0 0 5.5 23 11 10
2021/May/11 .5 6 .036 33 .012 11 0 0 10.4 43 15 14
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