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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 26, 2021, 3 p.m. | N/A | N/A | N/A | 10.0 ppb (10) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 13.6 μg/m3 (55) | 55.0 | |
| Feb. 26, 2021, 2 p.m. | N/A | N/A | N/A | 11.0 ppb (11) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 12.7 μg/m3 (53) | 53.0 | |
| Feb. 26, 2021, 1 p.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 15.3 μg/m3 (58) | 58.0 | |
| Feb. 26, 2021, noon | N/A | N/A | N/A | 28.0 ppb (27) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 18.7 μg/m3 (65) | 65.0 | |
| Feb. 26, 2021, 11 a.m. | N/A | N/A | N/A | 26.0 ppb (25) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 18.4 μg/m3 (65) | 65.0 | |
| Feb. 26, 2021, 10 a.m. | N/A | N/A | N/A | 26.0 ppb (25) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 15.2 μg/m3 (58) | 58.0 | |
| Feb. 26, 2021, 9 a.m. | N/A | N/A | N/A | 28.0 ppb (27) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 12.4 μg/m3 (52) | 52.0 | |
| Feb. 26, 2021, 8 a.m. | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 11.9 μg/m3 (50) | 50.0 | |
| Feb. 26, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Feb. 26, 2021, 6 a.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 11.3 μg/m3 (48) | 48.0 | |
| Feb. 26, 2021, 5 a.m. | N/A | N/A | N/A | 15.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | 10.3 μg/m3 (43) | 43.0 | |
| Feb. 26, 2021, 4 a.m. | N/A | N/A | N/A | 14.0 ppb (14) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 10.1 μg/m3 (43) | 43.0 | |
| Feb. 26, 2021, 3 a.m. | N/A | N/A | N/A | 10.0 ppb (10) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 9.6 μg/m3 (40) | 40.0 | |
| Feb. 26, 2021, 2 a.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 10.9 μg/m3 (46) | 46.0 | |
| Feb. 26, 2021, 1 a.m. | N/A | N/A | N/A | 10.0 ppb (10) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 9.1 μg/m3 (38) | 38.0 | |
| Feb. 26, 2021, midnight | N/A | N/A | N/A | 16.0 ppb (16) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 9.6 μg/m3 (40) | 40.0 | |
| Feb. 25, 2021, 11 p.m. | N/A | N/A | N/A | 13.0 ppb (13) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Feb. 25, 2021, 10 p.m. | N/A | N/A | N/A | 10.0 ppb (10) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 8.8 μg/m3 (37) | 37.0 | |
| Feb. 25, 2021, 9 p.m. | N/A | N/A | N/A | 9.0 ppb (9) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 7.6 μg/m3 (32) | 32.0 | |
| Feb. 25, 2021, 8 p.m. | N/A | N/A | N/A | 8.0 ppb (8) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 7.2 μg/m3 (31) | 31.0 | |
| Feb. 25, 2021, 7 p.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 5.8 μg/m3 (25) | 25.0 | |
| Feb. 25, 2021, 6 p.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 4.8 μg/m3 (20) | 20.0 | |
| Feb. 25, 2021, 5 p.m. | N/A | N/A | N/A | 8.0 ppb (8) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 4.7 μg/m3 (20) | 20.0 | |
| Feb. 25, 2021, 4 p.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 5.0 ppb (8) | N/A | N/A | N/A | N/A | 12.0 | |
| Feb. 25, 2021, 3 p.m. | N/A | N/A | N/A | 16.0 ppb (16) | N/A | 5.0 ppb (8) | N/A | N/A | N/A | 8.9 μg/m3 (38) | 38.0 | |
| Feb. 25, 2021, 2 p.m. | N/A | N/A | N/A | 17.0 ppb (17) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 9.1 μg/m3 (38) | 38.0 | |
| Feb. 25, 2021, 1 p.m. | N/A | N/A | N/A | 25.0 ppb (24) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 7.2 μg/m3 (31) | 31.0 | |
| Feb. 25, 2021, noon | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 22.1 μg/m3 (73) | 73.0 | |
| Feb. 25, 2021, 11 a.m. | N/A | N/A | N/A | 30.0 ppb (29) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 23.8 μg/m3 (76) | 76.0 | |
| Feb. 25, 2021, 10 a.m. | N/A | N/A | N/A | 23.0 ppb (22) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 5.4 μg/m3 (23) | 23.0 | |
| Feb. 25, 2021, 9 a.m. | N/A | N/A | N/A | 28.0 ppb (27) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 5.0 μg/m3 (21) | 27.0 | |
| Feb. 25, 2021, 8 a.m. | N/A | N/A | N/A | 13.0 ppb (13) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 4.5 μg/m3 (19) | 19.0 | |
| Feb. 25, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 4.6 μg/m3 (20) | 20.0 | |
| Feb. 25, 2021, 6 a.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 6.4 μg/m3 (27) | 27.0 | |
| Feb. 25, 2021, 5 a.m. | N/A | N/A | N/A | 13.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | 5.9 μg/m3 (25) | 25.0 | |
| Feb. 25, 2021, 4 a.m. | N/A | N/A | N/A | 16.0 ppb (16) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 4.5 μg/m3 (19) | 19.0 | |
| Feb. 25, 2021, 3 a.m. | N/A | N/A | N/A | 16.0 ppb (16) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 4.3 μg/m3 (18) | 18.0 | |
| Feb. 25, 2021, 2 a.m. | N/A | N/A | N/A | 9.0 ppb (9) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 3.9 μg/m3 (17) | 17.0 | |
| Feb. 25, 2021, 1 a.m. | N/A | N/A | N/A | 7.0 ppb (7) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 3.8 μg/m3 (16) | 16.0 | |
| Feb. 25, 2021, midnight | N/A | N/A | N/A | 8.0 ppb (8) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 5.8 μg/m3 (25) | 25.0 | |
| Feb. 24, 2021, 11 p.m. | N/A | N/A | N/A | 9.0 ppb (9) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 12.3 μg/m3 (52) | 52.0 | |
| Feb. 24, 2021, 10 p.m. | N/A | N/A | N/A | 10.0 ppb (10) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 18.1 μg/m3 (64) | 64.0 | |
| Feb. 24, 2021, 9 p.m. | N/A | N/A | N/A | 7.0 ppb (7) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 15.2 μg/m3 (58) | 58.0 | |
| Feb. 24, 2021, 8 p.m. | N/A | N/A | N/A | 8.0 ppb (8) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 11.9 μg/m3 (50) | 50.0 | |
| Feb. 24, 2021, 7 p.m. | N/A | N/A | N/A | 11.0 ppb (11) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 11.2 μg/m3 (47) | 47.0 | |
| Feb. 24, 2021, 6 p.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 11.6 μg/m3 (49) | 49.0 | |
| Feb. 24, 2021, 5 p.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 9.7 μg/m3 (41) | 41.0 | |
| Feb. 24, 2021, 4 p.m. | N/A | N/A | N/A | 13.0 ppb (13) | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 8.9 μg/m3 (38) | 38.0 | |
| Feb. 24, 2021, 3 p.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 5.0 ppb (8) | N/A | N/A | N/A | 7.5 μg/m3 (32) | 32.0 | |
| Feb. 24, 2021, 2 p.m. | N/A | N/A | N/A | 16.0 ppb (16) | N/A | 8.0 ppb (12) | N/A | N/A | N/A | 8.0 μg/m3 (34) | 34.0 | |
| Feb. 24, 2021, 1 p.m. | N/A | N/A | N/A | 14.0 ppb (14) | N/A | 15.0 ppb (22) | N/A | N/A | N/A | 7.6 μg/m3 (32) | 32.0 | |
| Feb. 24, 2021, noon | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 7.0 ppb (10) | N/A | N/A | N/A | 7.8 μg/m3 (33) | 33.0 | |
| Feb. 24, 2021, 11 a.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 10.5 μg/m3 (44) | 44.0 | |
| Feb. 24, 2021, 10 a.m. | N/A | N/A | N/A | 9.0 ppb (9) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 13.7 μg/m3 (55) | 55.0 | |
| Feb. 24, 2021, 9 a.m. | N/A | N/A | N/A | 10.0 ppb (10) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 16.5 μg/m3 (61) | 61.0 | |
| Feb. 24, 2021, 8 a.m. | N/A | N/A | N/A | 13.0 ppb (13) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 20.1 μg/m3 (68) | 68.0 | |
| Feb. 24, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 17.3 μg/m3 (62) | 62.0 | |
| Feb. 24, 2021, 6 a.m. | N/A | N/A | N/A | 14.0 ppb (14) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 17.6 μg/m3 (63) | 63.0 | |
| Feb. 24, 2021, 5 a.m. | N/A | N/A | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | 18.0 μg/m3 (64) | 64.0 | |
| Feb. 24, 2021, 4 a.m. | N/A | N/A | N/A | 15.0 ppb (15) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 19.8 μg/m3 (68) | 68.0 | |
| Feb. 24, 2021, 3 a.m. | N/A | N/A | N/A | 14.0 ppb (14) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 17.1 μg/m3 (62) | 62.0 | |
| Feb. 24, 2021, 2 a.m. | N/A | N/A | N/A | 16.0 ppb (16) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 9.7 μg/m3 (41) | 41.0 | |
| Feb. 24, 2021, 1 a.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 6.5 μg/m3 (28) | 28.0 | |
| Feb. 24, 2021, midnight | N/A | N/A | N/A | 26.0 ppb (25) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 6.4 μg/m3 (27) | 27.0 | |
| Feb. 23, 2021, 11 p.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 4.9 μg/m3 (21) | 21.0 | |
| Feb. 23, 2021, 10 p.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 4.3 μg/m3 (18) | 18.0 | |
| Feb. 23, 2021, 9 p.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 3.4 μg/m3 (15) | 15.0 | |
| Feb. 23, 2021, 8 p.m. | N/A | N/A | N/A | 7.0 ppb (7) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 4.5 μg/m3 (19) | 19.0 | |
| Feb. 23, 2021, 7 p.m. | N/A | N/A | N/A | 9.0 ppb (9) | N/A | 5.0 ppb (8) | N/A | N/A | N/A | 7.2 μg/m3 (31) | 31.0 | |
| Feb. 23, 2021, 6 p.m. | N/A | N/A | N/A | 10.0 ppb (10) | N/A | 5.0 ppb (8) | N/A | N/A | N/A | 8.9 μg/m3 (38) | 38.0 | |
| Feb. 23, 2021, 5 p.m. | N/A | N/A | N/A | 8.0 ppb (8) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 10.1 μg/m3 (43) | 43.0 | |
| Feb. 23, 2021, 4 p.m. | N/A | N/A | N/A | 9.0 ppb (9) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 11.5 μg/m3 (48) | 48.0 | |
| Feb. 23, 2021, 3 p.m. | N/A | N/A | N/A | 10.0 ppb (10) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 11.3 μg/m3 (48) | 48.0 | |
| Feb. 23, 2021, 2 p.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 9.9 μg/m3 (42) | 42.0 | |
| Feb. 23, 2021, 1 p.m. | N/A | N/A | N/A | 13.0 ppb (13) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 9.8 μg/m3 (41) | 41.0 | |
| Feb. 23, 2021, noon | N/A | N/A | N/A | 22.0 ppb (21) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| Feb. 23, 2021, 11 a.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 12.7 μg/m3 (53) | 53.0 | |
| Feb. 23, 2021, 10 a.m. | N/A | N/A | N/A | 15.0 ppb (15) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 13.9 μg/m3 (55) | 55.0 | |
| Feb. 23, 2021, 9 a.m. | N/A | N/A | N/A | 16.0 ppb (16) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 15.6 μg/m3 (59) | 59.0 | |
| Feb. 23, 2021, 8 a.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 17.8 μg/m3 (63) | 63.0 | |
| Feb. 23, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 16.6 μg/m3 (61) | 61.0 | |
| Feb. 23, 2021, 6 a.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 17.1 μg/m3 (62) | 62.0 | |
| Feb. 23, 2021, 5 a.m. | N/A | N/A | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | 18.9 μg/m3 (66) | 66.0 | |
| Feb. 23, 2021, 4 a.m. | N/A | N/A | N/A | 16.0 ppb (16) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 17.9 μg/m3 (64) | 64.0 | |
| Feb. 23, 2021, 3 a.m. | N/A | N/A | N/A | 14.0 ppb (14) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 20.0 μg/m3 (68) | 68.0 | |
| Feb. 23, 2021, 2 a.m. | N/A | N/A | N/A | 16.0 ppb (16) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 22.4 μg/m3 (73) | 73.0 | |
| Feb. 23, 2021, 1 a.m. | N/A | N/A | N/A | 15.0 ppb (15) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 22.0 μg/m3 (72) | 72.0 | |
| Feb. 23, 2021, midnight | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 25.1 μg/m3 (79) | 79.0 | |
| Feb. 22, 2021, 11 p.m. | N/A | N/A | N/A | 15.0 ppb (15) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 28.7 μg/m3 (86) | 86.0 | |
| Feb. 22, 2021, 10 p.m. | N/A | N/A | N/A | 14.0 ppb (14) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 29.1 μg/m3 (87) | 87.0 | |
| Feb. 22, 2021, 9 p.m. | N/A | N/A | N/A | 15.0 ppb (15) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 25.1 μg/m3 (79) | 79.0 | |
| Feb. 22, 2021, 8 p.m. | N/A | N/A | N/A | 15.0 ppb (15) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 21.7 μg/m3 (72) | 72.0 | |
| Feb. 22, 2021, 7 p.m. | N/A | N/A | N/A | 13.0 ppb (13) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 18.0 μg/m3 (64) | 64.0 | |
| Feb. 22, 2021, 6 p.m. | N/A | N/A | N/A | 16.0 ppb (16) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 17.8 μg/m3 (63) | 63.0 | |
| Feb. 22, 2021, 5 p.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 19.5 μg/m3 (67) | 67.0 | |
| Feb. 22, 2021, 4 p.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 15.9 μg/m3 (59) | 59.0 | |
| Feb. 22, 2021, 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 | 12.4 μg/m3 (52) | 52.0 | |
| Feb. 22, 2021, 2 p.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 10.3 μg/m3 (43) | 43.0 | |
| Feb. 22, 2021, 1 p.m. | N/A | N/A | N/A | 15.0 ppb (15) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 8.5 μg/m3 (36) | 36.0 | |
| Feb. 22, 2021, noon | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 6.7 μg/m3 (28) | 28.0 | |
| Feb. 22, 2021, 11 a.m. | N/A | N/A | N/A | 11.0 ppb (11) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 9.1 μg/m3 (38) | 38.0 | |
| Feb. 22, 2021, 10 a.m. | N/A | N/A | N/A | 10.0 ppb (10) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 9.8 μg/m3 (41) | 41.0 | |
| Feb. 22, 2021, 9 a.m. | N/A | N/A | N/A | 16.0 ppb (16) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 9.5 μg/m3 (40) | 40.0 | |
| Feb. 22, 2021, 8 a.m. | N/A | N/A | N/A | 17.0 ppb (17) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 7.8 μg/m3 (33) | 33.0 | |
| Feb. 22, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 7.8 μg/m3 (33) | 33.0 | |
| Feb. 22, 2021, 6 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 8.5 μg/m3 (36) | 36.0 | |
| Feb. 22, 2021, 5 a.m. | N/A | N/A | N/A | 10.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | 10.8 μg/m3 (46) | 46.0 | |
| Feb. 22, 2021, 4 a.m. | N/A | N/A | N/A | 9.0 ppb (9) | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 12.3 μg/m3 (52) | 52.0 | |
| Feb. 22, 2021, 3 a.m. | N/A | N/A | N/A | 7.0 ppb (7) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 14.2 μg/m3 (56) | 56.0 | |
| Feb. 22, 2021, 2 a.m. | N/A | N/A | N/A | 8.0 ppb (8) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 15.7 μg/m3 (59) | 59.0 | |
| Feb. 22, 2021, 1 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 17.0 μg/m3 (62) | 62.0 | |
| Feb. 22, 2021, midnight | N/A | N/A | N/A | 9.0 ppb (9) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 20.4 μg/m3 (69) | 69.0 | |
| Feb. 21, 2021, 11 p.m. | N/A | N/A | N/A | 9.0 ppb (9) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 23.1 μg/m3 (75) | 75.0 | |
| Feb. 21, 2021, 10 p.m. | N/A | N/A | N/A | 7.0 ppb (7) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 20.5 μg/m3 (69) | 69.0 | |
| Feb. 21, 2021, 9 p.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 19.2 μg/m3 (66) | 66.0 | |
| Feb. 21, 2021, 8 p.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 18.0 μg/m3 (64) | 64.0 | |
| Feb. 21, 2021, 7 p.m. | N/A | N/A | N/A | 7.0 ppb (7) | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 19.5 μg/m3 (67) | 67.0 | |
| Feb. 21, 2021, 6 p.m. | N/A | N/A | N/A | 11.0 ppb (11) | N/A | 18.0 ppb (26) | N/A | N/A | N/A | 20.8 μg/m3 (70) | 70.0 | |
| Feb. 21, 2021, 5 p.m. | N/A | N/A | N/A | 13.0 ppb (13) | N/A | 23.0 ppb (33) | N/A | N/A | N/A | 20.6 μg/m3 (69) | 69.0 | |
| Feb. 21, 2021, 4 p.m. | N/A | N/A | N/A | 14.0 ppb (14) | N/A | 20.0 ppb (29) | N/A | N/A | N/A | 24.4 μg/m3 (77) | 77.0 | |
| Feb. 21, 2021, 3 p.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 26.0 ppb (38) | N/A | N/A | N/A | 27.8 μg/m3 (85) | 85.0 | |
| Feb. 21, 2021, 2 p.m. | N/A | N/A | N/A | 17.0 ppb (17) | N/A | 12.0 ppb (18) | N/A | N/A | N/A | 33.1 μg/m3 (96) | 96.0 | |
| Feb. 21, 2021, 1 p.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 34.2 μg/m3 (98) | 98.0 | |
| Feb. 21, 2021, noon | N/A | N/A | N/A | 17.0 ppb (17) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 34.3 μg/m3 (98) | 98.0 | |
| Feb. 21, 2021, 11 a.m. | N/A | N/A | N/A | 14.0 ppb (14) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 37.6 μg/m3 (107) | 107.0 | |
| Feb. 21, 2021, 10 a.m. | N/A | N/A | N/A | 17.0 ppb (17) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 38.4 μg/m3 (109) | 109.0 | |
| Feb. 21, 2021, 9 a.m. | N/A | N/A | N/A | 17.0 ppb (17) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 39.8 μg/m3 (112) | 112.0 | |
| Feb. 21, 2021, 8 a.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 40.2 μg/m3 (113) | 113.0 | |
| Feb. 21, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 39.4 μg/m3 (111) | 111.0 | |
| Feb. 21, 2021, 6 a.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 37.4 μg/m3 (106) | 106.0 | |
| Feb. 21, 2021, 5 a.m. | N/A | N/A | N/A | 23.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | 36.5 μg/m3 (104) | 104.0 | |
| Feb. 21, 2021, 4 a.m. | N/A | N/A | N/A | 21.0 ppb (20) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 34.7 μg/m3 (99) | 99.0 | |
| Feb. 21, 2021, 3 a.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 34.3 μg/m3 (98) | 98.0 | |
| Feb. 21, 2021, 2 a.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 36.6 μg/m3 (104) | 104.0 | |
| Feb. 21, 2021, 1 a.m. | N/A | N/A | N/A | 15.0 ppb (15) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 37.4 μg/m3 (106) | 106.0 | |
| Feb. 21, 2021, midnight | N/A | N/A | N/A | 15.0 ppb (15) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 32.6 μg/m3 (95) | 95.0 | |
| Feb. 20, 2021, 11 p.m. | N/A | N/A | N/A | 17.0 ppb (17) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 32.6 μg/m3 (95) | 95.0 | |
| Feb. 20, 2021, 10 p.m. | N/A | N/A | N/A | 15.0 ppb (15) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 28.6 μg/m3 (86) | 86.0 | |
| Feb. 20, 2021, 9 p.m. | N/A | N/A | N/A | 10.0 ppb (10) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 21.9 μg/m3 (72) | 72.0 | |
| Feb. 20, 2021, 8 p.m. | N/A | N/A | N/A | 9.0 ppb (9) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 18.0 μg/m3 (64) | 64.0 | |
| Feb. 20, 2021, 7 p.m. | N/A | N/A | N/A | 8.0 ppb (8) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 17.8 μg/m3 (63) | 63.0 | |
| Feb. 20, 2021, 6 p.m. | N/A | N/A | N/A | 8.0 ppb (8) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 18.0 μg/m3 (64) | 64.0 | |
| Feb. 20, 2021, 5 p.m. | N/A | N/A | N/A | 8.0 ppb (8) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 18.3 μg/m3 (65) | 65.0 | |
| Feb. 20, 2021, 4 p.m. | N/A | N/A | N/A | 10.0 ppb (10) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 27.1 μg/m3 (83) | 83.0 | |
| Feb. 20, 2021, 3 p.m. | N/A | N/A | N/A | 11.0 ppb (11) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 32.6 μg/m3 (95) | 95.0 | |
| Feb. 20, 2021, 2 p.m. | N/A | N/A | N/A | 13.0 ppb (13) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 35.8 μg/m3 (102) | 102.0 | |
| Feb. 20, 2021, 1 p.m. | N/A | N/A | N/A | 24.0 ppb (23) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 37.0 μg/m3 (105) | 105.0 | |
| Feb. 20, 2021, noon | N/A | N/A | N/A | 35.0 ppb (34) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 39.2 μg/m3 (111) | 111.0 | |
| Feb. 20, 2021, 11 a.m. | N/A | N/A | N/A | 23.0 ppb (22) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 36.9 μg/m3 (105) | 105.0 | |
| Feb. 20, 2021, 10 a.m. | N/A | N/A | N/A | 24.0 ppb (23) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 38.9 μg/m3 (110) | 110.0 | |
| Feb. 20, 2021, 9 a.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 38.4 μg/m3 (109) | 109.0 | |
| Feb. 20, 2021, 8 a.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 38.0 μg/m3 (108) | 108.0 | |
| Feb. 20, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 34.3 μg/m3 (98) | 98.0 | |
| Feb. 20, 2021, 6 a.m. | N/A | N/A | N/A | 21.0 ppb (20) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 30.4 μg/m3 (90) | 90.0 | |
| Feb. 20, 2021, 5 a.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | 33.4 μg/m3 (96) | 96.0 | |
| Feb. 20, 2021, 4 a.m. | N/A | N/A | N/A | 11.0 ppb (11) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 25.8 μg/m3 (80) | 80.0 | |
| Feb. 20, 2021, 3 a.m. | N/A | N/A | N/A | 17.0 ppb (17) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 26.0 μg/m3 (81) | 81.0 | |
| Feb. 20, 2021, 2 a.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 30.2 μg/m3 (90) | 90.0 | |
| Feb. 20, 2021, 1 a.m. | N/A | N/A | N/A | 21.0 ppb (20) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 36.0 μg/m3 (103) | 103.0 | |
| Feb. 20, 2021, midnight | N/A | N/A | N/A | 21.0 ppb (20) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 24.2 μg/m3 (77) | 77.0 | |
| Feb. 19, 2021, 11 p.m. | N/A | N/A | N/A | 17.0 ppb (17) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 20.7 μg/m3 (70) | 70.0 | |
| Feb. 19, 2021, 10 p.m. | N/A | N/A | N/A | 14.0 ppb (14) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 12.9 μg/m3 (53) | 53.0 | |
| Feb. 19, 2021, 9 p.m. | N/A | N/A | N/A | 11.0 ppb (11) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 12.3 μg/m3 (52) | 52.0 | |
| Feb. 19, 2021, 8 p.m. | N/A | N/A | N/A | 13.0 ppb (13) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| Feb. 19, 2021, 7 p.m. | N/A | N/A | N/A | 10.0 ppb (10) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 13.0 μg/m3 (53) | 53.0 | |
| Feb. 19, 2021, 6 p.m. | N/A | N/A | N/A | 10.0 ppb (10) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 13.2 μg/m3 (54) | 54.0 | |
| Feb. 19, 2021, 5 p.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | 13.7 μg/m3 (55) | 55.0 | |
| Feb. 19, 2021, 4 p.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 13.8 μg/m3 (55) | 55.0 |