Detroit (Fort St W) MI, US: 42.3042, -83.1072
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 17, 2020, noon | N/A | N/A | N/A | 26.0 ppb (24) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 24.0 | |
| Jan. 17, 2020, 11 a.m. | N/A | N/A | N/A | 17.0 ppb (16) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 16.0 | |
| Jan. 17, 2020, 10 a.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 39.5 μg/m3 (110) | 110.0 | |
| Jan. 17, 2020, 9 a.m. | N/A | N/A | N/A | 12.0 ppb (11) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 20.1 μg/m3 (67) | 67.0 | |
| Jan. 17, 2020, 8 a.m. | N/A | N/A | N/A | 9.0 ppb (8) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 8.0 | |
| Jan. 17, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 1.0 | |
| Jan. 17, 2020, 6 a.m. | N/A | N/A | N/A | 8.0 ppb (7) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 31.9 μg/m3 (92) | 92.0 | |
| Jan. 17, 2020, 5 a.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | -2.7 μg/m3 (0) | 5.0 | |
| Jan. 17, 2020, 4 a.m. | N/A | N/A | N/A | 7.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | -2.4 μg/m3 (0) | 6.0 | |
| Jan. 17, 2020, 3 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | -4.1 μg/m3 (0) | 6.0 | |
| Jan. 17, 2020, 2 a.m. | N/A | N/A | N/A | 8.0 ppb (7) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 7.0 | |
| Jan. 17, 2020, 1 a.m. | N/A | N/A | N/A | 9.0 ppb (8) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 3.2 μg/m3 (13) | 13.0 | |
| Jan. 17, 2020, midnight | N/A | N/A | N/A | 9.0 ppb (8) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 32.3 μg/m3 (93) | 93.0 | |
| Jan. 16, 2020, 11 p.m. | N/A | N/A | N/A | 10.0 ppb (9) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 9.8 μg/m3 (41) | 41.0 | |
| Jan. 16, 2020, 10 p.m. | N/A | N/A | N/A | 9.0 ppb (8) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 11.1 μg/m3 (46) | 46.0 | |
| Jan. 16, 2020, 9 p.m. | N/A | N/A | N/A | 10.0 ppb (9) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 9.3 μg/m3 (39) | 39.0 | |
| Jan. 16, 2020, 8 p.m. | N/A | N/A | N/A | 8.0 ppb (7) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 2.9 μg/m3 (12) | 12.0 | |
| Jan. 16, 2020, 7 p.m. | N/A | N/A | N/A | 9.0 ppb (8) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | -0.6 μg/m3 (0) | 8.0 | |
| Jan. 16, 2020, 6 p.m. | N/A | N/A | N/A | 8.0 ppb (7) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 25.1 μg/m3 (78) | 78.0 | |
| Jan. 16, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 17.8 μg/m3 (62) | 62.0 | |
| Jan. 16, 2020, 4 p.m. | N/A | N/A | N/A | 10.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | 7.7 μg/m3 (32) | 32.0 | |
| Jan. 16, 2020, 3 p.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 8.5 μg/m3 (35) | 35.0 | |
| Jan. 16, 2020, 2 p.m. | N/A | N/A | N/A | 13.0 ppb (12) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 3.5 μg/m3 (15) | 15.0 | |
| Jan. 16, 2020, 1 p.m. | N/A | N/A | N/A | 9.0 ppb (8) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | -2.7 μg/m3 (0) | 8.0 | |
| Jan. 16, 2020, noon | N/A | N/A | N/A | 10.0 ppb (9) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 10.1 μg/m3 (42) | 42.0 | |
| Jan. 16, 2020, 11 a.m. | N/A | N/A | N/A | 10.0 ppb (9) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 23.0 μg/m3 (73) | 73.0 | |
| Jan. 16, 2020, 10 a.m. | N/A | N/A | N/A | 10.0 ppb (9) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 6.6 μg/m3 (28) | 28.0 | |
| Jan. 16, 2020, 9 a.m. | N/A | N/A | N/A | 8.0 ppb (7) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 3.7 μg/m3 (15) | 15.0 | |
| Jan. 16, 2020, 8 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 1.5 μg/m3 (6) | 6.0 | |
| Jan. 16, 2020, 7 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 10.8 μg/m3 (45) | 45.0 | |
| Jan. 16, 2020, 6 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 45.1 μg/m3 (124) | 124.0 | |
| Jan. 16, 2020, 5 a.m. | N/A | N/A | N/A | 7.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | 15.2 μg/m3 (57) | 57.0 | |
| Jan. 16, 2020, 4 a.m. | N/A | N/A | N/A | 10.0 ppb (9) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 20.3 μg/m3 (68) | 68.0 | |
| Jan. 16, 2020, 3 a.m. | N/A | N/A | N/A | 17.0 ppb (16) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 22.7 μg/m3 (73) | 73.0 | |
| Jan. 16, 2020, 2 a.m. | N/A | N/A | N/A | 26.0 ppb (24) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 25.0 μg/m3 (78) | 78.0 | |
| Jan. 16, 2020, 1 a.m. | N/A | N/A | N/A | 23.0 ppb (21) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 20.0 μg/m3 (67) | 67.0 | |
| Jan. 16, 2020, midnight | N/A | N/A | N/A | 15.0 ppb (14) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 19.5 μg/m3 (66) | 66.0 | |
| Jan. 15, 2020, 11 p.m. | N/A | N/A | N/A | 17.0 ppb (16) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 17.2 μg/m3 (61) | 61.0 | |
| Jan. 15, 2020, 10 p.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 8.1 μg/m3 (34) | 34.0 | |
| Jan. 15, 2020, 9 p.m. | N/A | N/A | N/A | 16.0 ppb (15) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 13.5 μg/m3 (53) | 53.0 | |
| Jan. 15, 2020, 8 p.m. | N/A | N/A | N/A | 14.0 ppb (13) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 30.0 μg/m3 (88) | 88.0 | |
| Jan. 15, 2020, 7 p.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 26.7 μg/m3 (81) | 81.0 | |
| Jan. 15, 2020, 6 p.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 15.3 μg/m3 (57) | 57.0 | |
| Jan. 15, 2020, 5 p.m. | N/A | N/A | N/A | 12.0 ppb (11) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 12.3 μg/m3 (51) | 51.0 | |
| Jan. 15, 2020, 4 p.m. | N/A | N/A | N/A | 14.0 ppb (13) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 16.7 μg/m3 (60) | 60.0 | |
| Jan. 15, 2020, 3 p.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 21.1 μg/m3 (69) | 69.0 | |
| Jan. 15, 2020, 2 p.m. | N/A | N/A | N/A | 31.0 ppb (29) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 29.9 μg/m3 (88) | 88.0 | |
| Jan. 15, 2020, 1 p.m. | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 15.3 μg/m3 (57) | 57.0 | |
| Jan. 15, 2020, noon | N/A | N/A | N/A | 30.0 ppb (28) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 7.1 μg/m3 (30) | 30.0 | |
| Jan. 15, 2020, 11 a.m. | N/A | N/A | N/A | 26.0 ppb (24) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 18.1 μg/m3 (63) | 63.0 | |
| Jan. 15, 2020, 10 a.m. | N/A | N/A | N/A | 26.0 ppb (24) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 34.5 μg/m3 (98) | 98.0 | |
| Jan. 15, 2020, 9 a.m. | N/A | N/A | N/A | 26.0 ppb (24) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 11.7 μg/m3 (49) | 49.0 | |
| Jan. 15, 2020, 8 a.m. | N/A | N/A | N/A | 31.0 ppb (29) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 15.8 μg/m3 (58) | 58.0 | |
| Jan. 15, 2020, 7 a.m. | N/A | N/A | N/A | 21.0 ppb (19) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 14.3 μg/m3 (55) | 55.0 | |
| Jan. 15, 2020, 6 a.m. | N/A | N/A | N/A | 13.0 ppb (12) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 20.6 μg/m3 (68) | 68.0 | |
| Jan. 15, 2020, 5 a.m. | N/A | N/A | N/A | 16.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | 11.4 μg/m3 (48) | 48.0 | |
| Jan. 15, 2020, 4 a.m. | N/A | N/A | N/A | 17.0 ppb (16) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 10.6 μg/m3 (44) | 44.0 | |
| Jan. 15, 2020, 3 a.m. | N/A | N/A | N/A | 14.0 ppb (13) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 5.4 μg/m3 (23) | 23.0 | |
| Jan. 15, 2020, 2 a.m. | N/A | N/A | N/A | 14.0 ppb (13) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 13.0 | |
| Jan. 15, 2020, 1 a.m. | N/A | N/A | N/A | 13.0 ppb (12) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Jan. 15, 2020, midnight | N/A | N/A | N/A | 14.0 ppb (13) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 36.3 μg/m3 (102) | 102.0 | |
| Jan. 14, 2020, 11 p.m. | N/A | N/A | N/A | 16.0 ppb (15) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 4.5 μg/m3 (19) | 19.0 | |
| Jan. 14, 2020, 10 p.m. | N/A | N/A | N/A | 16.0 ppb (15) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 25.0 μg/m3 (78) | 78.0 | |
| Jan. 14, 2020, 9 p.m. | N/A | N/A | N/A | 16.0 ppb (15) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 28.2 μg/m3 (84) | 84.0 | |
| Jan. 14, 2020, 8 p.m. | N/A | N/A | N/A | 15.0 ppb (14) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 12.5 μg/m3 (51) | 51.0 | |
| Jan. 14, 2020, 7 p.m. | N/A | N/A | N/A | 15.0 ppb (14) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 16.8 μg/m3 (60) | 60.0 | |
| Jan. 14, 2020, 6 p.m. | N/A | N/A | N/A | 15.0 ppb (14) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 14, 2020, 5 p.m. | N/A | N/A | N/A | 16.0 ppb (15) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 15.4 μg/m3 (57) | 57.0 | |
| Jan. 14, 2020, 4 p.m. | N/A | N/A | N/A | 17.0 ppb (16) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 5.9 μg/m3 (25) | 25.0 | |
| Jan. 14, 2020, 3 p.m. | N/A | N/A | N/A | 14.0 ppb (13) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 27.2 μg/m3 (82) | 82.0 | |
| Jan. 14, 2020, 2 p.m. | N/A | N/A | N/A | 15.0 ppb (14) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 19.7 μg/m3 (66) | 66.0 | |
| Jan. 14, 2020, 1 p.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | -0.7 μg/m3 (0) | 19.0 | |
| Jan. 14, 2020, noon | N/A | N/A | N/A | 17.0 ppb (16) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 10.1 μg/m3 (42) | 42.0 | |
| Jan. 14, 2020, 11 a.m. | N/A | N/A | N/A | 13.0 ppb (12) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 4.7 μg/m3 (20) | 20.0 | |
| Jan. 14, 2020, 10 a.m. | N/A | N/A | N/A | 14.0 ppb (13) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 8.4 μg/m3 (35) | 35.0 | |
| Jan. 14, 2020, 9 a.m. | N/A | N/A | N/A | 16.0 ppb (15) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 8.7 μg/m3 (36) | 36.0 | |
| Jan. 14, 2020, 8 a.m. | N/A | N/A | N/A | 13.0 ppb (12) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 14, 2020, 7 a.m. | N/A | N/A | N/A | 12.0 ppb (11) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 6.9 μg/m3 (29) | 29.0 | |
| Jan. 14, 2020, 6 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 1.7 μg/m3 (7) | 7.0 | |
| Jan. 14, 2020, 5 a.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | -2.6 μg/m3 (0) | 5.0 | |
| Jan. 14, 2020, 4 a.m. | N/A | N/A | N/A | 7.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 1.3 μg/m3 (5) | 6.0 | |
| Jan. 14, 2020, 3 a.m. | N/A | N/A | N/A | 8.0 ppb (7) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 37.6 μg/m3 (105) | 105.0 | |
| Jan. 14, 2020, 2 a.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 14, 2020, 1 a.m. | N/A | N/A | N/A | 23.0 ppb (21) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | -1.8 μg/m3 (0) | 21.0 | |
| Jan. 14, 2020, midnight | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | -0.3 μg/m3 (0) | 18.0 | |
| Jan. 13, 2020, 11 p.m. | N/A | N/A | N/A | 23.0 ppb (21) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | -3.6 μg/m3 (0) | 21.0 | |
| Jan. 13, 2020, 10 p.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 35.5 μg/m3 (100) | 100.0 | |
| Jan. 13, 2020, 9 p.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 32.3 μg/m3 (93) | 93.0 | |
| Jan. 13, 2020, 8 p.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 9.3 μg/m3 (39) | 39.0 | |
| Jan. 13, 2020, 7 p.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 7.6 μg/m3 (32) | 32.0 | |
| Jan. 13, 2020, 6 p.m. | N/A | N/A | N/A | 16.0 ppb (15) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 3.8 μg/m3 (16) | 16.0 | |
| Jan. 13, 2020, 5 p.m. | N/A | N/A | N/A | 17.0 ppb (16) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 7.2 μg/m3 (30) | 30.0 | |
| Jan. 13, 2020, 4 p.m. | N/A | N/A | N/A | 17.0 ppb (16) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 36.6 μg/m3 (103) | 103.0 | |
| Jan. 13, 2020, 3 p.m. | N/A | N/A | N/A | 23.0 ppb (21) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 26.9 μg/m3 (82) | 82.0 | |
| Jan. 13, 2020, 2 p.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 9.5 μg/m3 (40) | 40.0 | |
| Jan. 13, 2020, 1 p.m. | N/A | N/A | N/A | 24.0 ppb (22) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | -3.3 μg/m3 (0) | 22.0 | |
| Jan. 13, 2020, noon | N/A | N/A | N/A | 23.0 ppb (21) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 2.0 μg/m3 (8) | 21.0 | |
| Jan. 13, 2020, 11 a.m. | N/A | N/A | N/A | 30.0 ppb (28) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | -0.8 μg/m3 (0) | 28.0 | |
| Jan. 13, 2020, 10 a.m. | N/A | N/A | N/A | 30.0 ppb (28) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 29.3 μg/m3 (87) | 87.0 | |
| Jan. 13, 2020, 9 a.m. | N/A | N/A | N/A | 21.0 ppb (19) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 12.2 μg/m3 (50) | 50.0 | |
| Jan. 13, 2020, 8 a.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | -4.6 μg/m3 (0) | 10.0 | |
| Jan. 13, 2020, 7 a.m. | N/A | N/A | N/A | 14.0 ppb (13) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 13.0 | |
| Jan. 13, 2020, 6 a.m. | N/A | N/A | N/A | 12.0 ppb (11) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 11.0 | |
| Jan. 13, 2020, 5 a.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | 59.1 μg/m3 (152) | 152.0 | |
| Jan. 13, 2020, 4 a.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 9.2 μg/m3 (38) | 38.0 | |
| Jan. 13, 2020, 3 a.m. | N/A | N/A | N/A | 10.0 ppb (9) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 1.0 μg/m3 (4) | 9.0 | |
| Jan. 13, 2020, 2 a.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 1.7 μg/m3 (7) | 10.0 | |
| Jan. 13, 2020, 1 a.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 10.0 | |
| Jan. 13, 2020, midnight | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 10.0 | |
| Jan. 12, 2020, 11 p.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 28.8 μg/m3 (86) | 86.0 | |
| Jan. 12, 2020, 10 p.m. | N/A | N/A | N/A | 14.0 ppb (13) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 22.4 μg/m3 (72) | 72.0 | |
| Jan. 12, 2020, 9 p.m. | N/A | N/A | N/A | 21.0 ppb (19) | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 14.1 μg/m3 (54) | 54.0 | |
| Jan. 12, 2020, 8 p.m. | N/A | N/A | N/A | 16.0 ppb (15) | N/A | 5.0 ppb (7) | N/A | N/A | N/A | 3.3 μg/m3 (14) | 15.0 | |
| Jan. 12, 2020, 7 p.m. | N/A | N/A | N/A | 13.0 ppb (12) | N/A | 4.0 ppb (6) | N/A | N/A | N/A | -3.6 μg/m3 (0) | 12.0 | |
| Jan. 12, 2020, 6 p.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 3.0 ppb (4) | N/A | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 12, 2020, 5 p.m. | N/A | N/A | N/A | 13.0 ppb (12) | N/A | 3.0 ppb (4) | N/A | N/A | N/A | 27.3 μg/m3 (83) | 83.0 | |
| Jan. 12, 2020, 4 p.m. | N/A | N/A | N/A | 8.0 ppb (7) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 1.6 μg/m3 (7) | 7.0 | |
| Jan. 12, 2020, 3 p.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | -2.7 μg/m3 (0) | 5.0 | |
| Jan. 12, 2020, 2 p.m. | N/A | N/A | N/A | 8.0 ppb (7) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 2.1 μg/m3 (9) | 9.0 | |
| Jan. 12, 2020, 1 p.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 24.5 μg/m3 (77) | 77.0 | |
| Jan. 12, 2020, noon | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 2.4 μg/m3 (10) | 10.0 | |
| Jan. 12, 2020, 11 a.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| Jan. 12, 2020, 10 a.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | -4.9 μg/m3 (0) | 4.0 | |
| Jan. 12, 2020, 9 a.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 31.9 μg/m3 (92) | 92.0 | |
| Jan. 12, 2020, 8 a.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | -1.3 μg/m3 (0) | 3.0 | |
| Jan. 12, 2020, 7 a.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 0.4 μg/m3 (2) | 4.0 | |
| Jan. 12, 2020, 6 a.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 4.0 | |
| Jan. 12, 2020, 5 a.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 | |
| Jan. 12, 2020, 4 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 19.5 μg/m3 (66) | 66.0 | |
| Jan. 12, 2020, 3 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 12.7 μg/m3 (51) | 51.0 | |
| Jan. 12, 2020, 2 a.m. | N/A | N/A | N/A | 7.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | -2.7 μg/m3 (0) | 6.0 | |
| Jan. 12, 2020, 1 a.m. | N/A | N/A | N/A | 9.0 ppb (8) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | -2.7 μg/m3 (0) | 8.0 | |
| Jan. 12, 2020, midnight | N/A | N/A | N/A | 8.0 ppb (7) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 7.0 | |
| Jan. 11, 2020, 11 p.m. | N/A | N/A | N/A | 7.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 6.0 | |
| Jan. 11, 2020, 10 p.m. | N/A | N/A | N/A | 7.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | -2.9 μg/m3 (0) | 6.0 | |
| Jan. 11, 2020, 9 p.m. | N/A | N/A | N/A | 8.0 ppb (7) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 25.5 μg/m3 (79) | 79.0 | |
| Jan. 11, 2020, 8 p.m. | N/A | N/A | N/A | 9.0 ppb (8) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 17.0 μg/m3 (61) | 61.0 | |
| Jan. 11, 2020, 7 p.m. | N/A | N/A | N/A | 8.0 ppb (7) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | -1.9 μg/m3 (0) | 7.0 | |
| Jan. 11, 2020, 6 p.m. | N/A | N/A | N/A | 7.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 6.0 | |
| Jan. 11, 2020, 5 p.m. | N/A | N/A | N/A | 7.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 6.0 | |
| Jan. 11, 2020, 4 p.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 18.4 μg/m3 (64) | 64.0 | |
| Jan. 11, 2020, 3 p.m. | N/A | N/A | N/A | 9.0 ppb (8) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 28.1 μg/m3 (84) | 84.0 | |
| Jan. 11, 2020, 2 p.m. | N/A | N/A | N/A | 30.0 ppb (28) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 28.0 | |
| Jan. 11, 2020, 1 p.m. | N/A | N/A | N/A | 29.0 ppb (27) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 27.0 | |
| Jan. 11, 2020, noon | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | N/A | 19.0 | |
| Jan. 11, 2020, 11 a.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 11.0 ppb (16) | N/A | N/A | N/A | 20.3 μg/m3 (68) | 68.0 | |
| Jan. 11, 2020, 10 a.m. | N/A | N/A | N/A | 15.0 ppb (14) | N/A | 8.0 ppb (11) | N/A | N/A | N/A | 18.8 μg/m3 (64) | 64.0 | |
| Jan. 11, 2020, 9 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 6.0 | |
| Jan. 11, 2020, 8 a.m. | N/A | N/A | N/A | 10.0 ppb (9) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 21.2 μg/m3 (70) | 70.0 | |
| Jan. 11, 2020, 7 a.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 42.5 μg/m3 (118) | 118.0 | |
| Jan. 11, 2020, 6 a.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 10.0 | |
| Jan. 11, 2020, 5 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 | |
| Jan. 11, 2020, 4 a.m. | N/A | N/A | N/A | 8.0 ppb (7) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 15.2 μg/m3 (57) | 57.0 | |
| Jan. 11, 2020, 3 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 10.8 μg/m3 (45) | 45.0 | |
| Jan. 11, 2020, 2 a.m. | N/A | N/A | N/A | 8.0 ppb (7) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 1.8 μg/m3 (8) | 8.0 | |
| Jan. 11, 2020, 1 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | -0.6 μg/m3 (0) | 6.0 | |
| Jan. 11, 2020, midnight | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 0.7 μg/m3 (3) | 6.0 | |
| Jan. 10, 2020, 11 p.m. | N/A | N/A | N/A | 10.0 ppb (9) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 9.5 μg/m3 (40) | 40.0 | |
| Jan. 10, 2020, 10 p.m. | N/A | N/A | N/A | 13.0 ppb (12) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 38.4 μg/m3 (107) | 107.0 | |
| Jan. 10, 2020, 9 p.m. | N/A | N/A | N/A | 21.0 ppb (19) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 12.2 μg/m3 (50) | 50.0 | |
| Jan. 10, 2020, 8 p.m. | N/A | N/A | N/A | 21.0 ppb (19) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Jan. 10, 2020, 7 p.m. | N/A | N/A | N/A | 23.0 ppb (21) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 10, 2020, 6 p.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 9.2 μg/m3 (38) | 38.0 | |
| Jan. 10, 2020, 5 p.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 11.8 μg/m3 (49) | 49.0 | |
| Jan. 10, 2020, 4 p.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 11.1 μg/m3 (46) | 46.0 | |
| Jan. 10, 2020, 3 p.m. | N/A | N/A | N/A | 16.0 ppb (15) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 10.6 μg/m3 (44) | 44.0 | |
| Jan. 10, 2020, 2 p.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 12.6 μg/m3 (51) | 51.0 | |
| Jan. 10, 2020, 1 p.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 1.5 μg/m3 (6) | 18.0 |