Denver (Central E Denver) CO, US: 39.7386, -104.9394
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 21, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 29.1 μg/m3 (27) | 6.4 μg/m3 (27) | 27.0 | |
| Jan. 21, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 μg/m3 (25) | 5.6 μg/m3 (24) | 25.0 | |
| Jan. 21, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 24.4 μg/m3 (23) | 5.6 μg/m3 (24) | 24.0 | |
| Jan. 21, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.9 μg/m3 (23) | 6.2 μg/m3 (26) | 26.0 | |
| Jan. 21, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 27.9 μg/m3 (26) | 5.7 μg/m3 (24) | 26.0 | |
| Jan. 21, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.3 μg/m3 (19) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 21, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.3 μg/m3 (15) | 4.3 μg/m3 (18) | 18.0 | |
| Jan. 21, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.6 μg/m3 (13) | 4.5 μg/m3 (19) | 19.0 | |
| Jan. 21, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.4 μg/m3 (12) | 4.4 μg/m3 (19) | 19.0 | |
| Jan. 21, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 μg/m3 (12) | 4.4 μg/m3 (19) | 19.0 | |
| Jan. 21, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.9 μg/m3 (16) | 5.2 μg/m3 (22) | 22.0 | |
| Jan. 21, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.1 μg/m3 (22) | 6.3 μg/m3 (27) | 27.0 | |
| Jan. 21, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 26.2 μg/m3 (25) | 7.0 μg/m3 (30) | 30.0 | |
| Jan. 21, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 25.7 μg/m3 (24) | 6.9 μg/m3 (29) | 29.0 | |
| Jan. 21, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 26.9 μg/m3 (25) | 6.9 μg/m3 (29) | 29.0 | |
| Jan. 21, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.3 μg/m3 (20) | 6.2 μg/m3 (26) | 26.0 | |
| Jan. 21, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.9 μg/m3 (21) | 6.3 μg/m3 (27) | 27.0 | |
| Jan. 21, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.5 μg/m3 (18) | 4.5 μg/m3 (19) | 19.0 | |
| Jan. 21, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.9 μg/m3 (21) | 4.8 μg/m3 (20) | 21.0 | |
| Jan. 21, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.9 μg/m3 (23) | 4.4 μg/m3 (19) | 23.0 | |
| Jan. 20, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 29.3 μg/m3 (28) | 4.0 μg/m3 (17) | 28.0 | |
| Jan. 20, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.7 μg/m3 (17) | 3.3 μg/m3 (14) | 17.0 | |
| Jan. 20, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 31.6 μg/m3 (30) | 3.7 μg/m3 (16) | 30.0 | |
| Jan. 20, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 27.1 μg/m3 (26) | 3.7 μg/m3 (16) | 26.0 | |
| Jan. 20, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.4 μg/m3 (20) | 3.5 μg/m3 (15) | 20.0 | |
| Jan. 20, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 42.8 μg/m3 (40) | 4.6 μg/m3 (20) | 40.0 | |
| Jan. 20, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 36.9 μg/m3 (35) | 4.2 μg/m3 (18) | 35.0 | |
| Jan. 20, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 34.3 μg/m3 (32) | 5.0 μg/m3 (21) | 32.0 | |
| Jan. 20, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 51.6 μg/m3 (48) | 7.9 μg/m3 (33) | 48.0 | |
| Jan. 20, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 47.3 μg/m3 (44) | 7.1 μg/m3 (30) | 44.0 | |
| Jan. 20, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 49.1 μg/m3 (46) | 6.0 μg/m3 (25) | 46.0 | |
| Jan. 20, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.6 μg/m3 (15) | 3.5 μg/m3 (15) | 15.0 | |
| Jan. 20, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.3 μg/m3 (9) | 2.5 μg/m3 (11) | 11.0 | |
| Jan. 20, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.8 μg/m3 (8) | 2.2 μg/m3 (10) | 10.0 | |
| Jan. 20, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.5 μg/m3 (10) | 2.4 μg/m3 (10) | 10.0 | |
| Jan. 20, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.5 μg/m3 (8) | 3.6 μg/m3 (16) | 16.0 | |
| Jan. 20, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.6 μg/m3 (12) | 4.1 μg/m3 (18) | 18.0 | |
| Jan. 20, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.5 μg/m3 (19) | 8.2 μg/m3 (35) | 35.0 | |
| Jan. 20, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 27.4 μg/m3 (26) | 11.2 μg/m3 (47) | 47.0 | |
| Jan. 20, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 37.9 μg/m3 (36) | 14.8 μg/m3 (57) | 57.0 | |
| Jan. 20, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 μg/m3 (34) | 14.0 μg/m3 (55) | 55.0 | |
| Jan. 20, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 30.4 μg/m3 (29) | 10.5 μg/m3 (44) | 44.0 | |
| Jan. 20, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 25.5 μg/m3 (24) | 7.4 μg/m3 (31) | 31.0 | |
| Jan. 20, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 μg/m3 (22) | 5.1 μg/m3 (22) | 22.0 | |
| Jan. 19, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.5 μg/m3 (18) | 4.9 μg/m3 (21) | 21.0 | |
| Jan. 19, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.8 μg/m3 (14) | 4.3 μg/m3 (18) | 18.0 | |
| Jan. 19, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.6 μg/m3 (12) | 3.8 μg/m3 (16) | 16.0 | |
| Jan. 19, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.6 μg/m3 (11) | 3.3 μg/m3 (14) | 14.0 | |
| Jan. 19, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.7 μg/m3 (9) | 2.9 μg/m3 (13) | 13.0 | |
| Jan. 19, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.3 μg/m3 (15) | 3.5 μg/m3 (15) | 15.0 | |
| Jan. 19, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.4 μg/m3 (12) | 3.8 μg/m3 (16) | 16.0 | |
| Jan. 19, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.4 μg/m3 (18) | 5.1 μg/m3 (22) | 22.0 | |
| Jan. 19, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.2 μg/m3 (22) | 5.8 μg/m3 (25) | 25.0 | |
| Jan. 19, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.9 μg/m3 (17) | 5.4 μg/m3 (23) | 23.0 | |
| Jan. 19, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.6 μg/m3 (14) | 4.5 μg/m3 (19) | 19.0 | |
| Jan. 19, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.9 μg/m3 (10) | 3.8 μg/m3 (16) | 16.0 | |
| Jan. 19, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (7) | 3.6 μg/m3 (16) | 16.0 | |
| Jan. 19, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.8 μg/m3 (8) | 3.7 μg/m3 (16) | 16.0 | |
| Jan. 19, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.5 μg/m3 (7) | 3.4 μg/m3 (15) | 15.0 | |
| Jan. 19, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.5 μg/m3 (7) | 2.9 μg/m3 (13) | 13.0 | |
| Jan. 19, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (6) | 2.6 μg/m3 (11) | 11.0 | |
| Jan. 19, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (4) | 2.1 μg/m3 (9) | 9.0 | |
| Jan. 19, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.6 μg/m3 (7) | 2.3 μg/m3 (10) | 10.0 | |
| Jan. 19, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.6 μg/m3 (6) | 2.3 μg/m3 (10) | 10.0 | |
| Jan. 19, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.2 μg/m3 (6) | 2.1 μg/m3 (9) | 9.0 | |
| Jan. 19, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.9 μg/m3 (13) | 3.2 μg/m3 (14) | 14.0 | |
| Jan. 19, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 μg/m3 (13) | 3.3 μg/m3 (14) | 14.0 | |
| Jan. 19, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 22.5 μg/m3 (21) | 4.1 μg/m3 (18) | 21.0 | |
| Jan. 18, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.4 μg/m3 (12) | 2.6 μg/m3 (11) | 12.0 | |
| Jan. 18, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.8 μg/m3 (12) | 2.7 μg/m3 (12) | 12.0 | |
| Jan. 18, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.3 μg/m3 (10) | 2.4 μg/m3 (10) | 10.0 | |
| Jan. 18, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.6 μg/m3 (13) | 2.9 μg/m3 (13) | 13.0 | |
| Jan. 18, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.5 μg/m3 (14) | 2.9 μg/m3 (13) | 14.0 | |
| Jan. 18, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.7 μg/m3 (10) | 2.1 μg/m3 (9) | 10.0 | |
| Jan. 18, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.4 μg/m3 (12) | 2.5 μg/m3 (11) | 12.0 | |
| Jan. 18, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.7 μg/m3 (16) | 3.5 μg/m3 (15) | 16.0 | |
| Jan. 18, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 19.2 μg/m3 (18) | 3.5 μg/m3 (15) | 18.0 | |
| Jan. 18, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 19.8 μg/m3 (19) | 2.7 μg/m3 (12) | 19.0 | |
| Jan. 18, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.7 μg/m3 (13) | 1.9 μg/m3 (8) | 13.0 | |
| Jan. 18, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.3 μg/m3 (15) | 2.0 μg/m3 (9) | 15.0 | |
| Jan. 18, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.3 μg/m3 (10) | 1.9 μg/m3 (8) | 10.0 | |
| Jan. 18, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.5 μg/m3 (7) | 2.3 μg/m3 (10) | 10.0 | |
| Jan. 18, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.6 μg/m3 (15) | 3.8 μg/m3 (16) | 16.0 | |
| Jan. 18, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.8 μg/m3 (9) | 2.9 μg/m3 (13) | 13.0 | |
| Jan. 18, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.6 μg/m3 (8) | 1.6 μg/m3 (7) | 8.0 | |
| Jan. 18, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.3 μg/m3 (11) | 1.7 μg/m3 (8) | 11.0 | |
| Jan. 18, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.1 μg/m3 (11) | 2.0 μg/m3 (9) | 11.0 | |
| Jan. 18, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.4 μg/m3 (14) | 2.6 μg/m3 (11) | 14.0 | |
| Jan. 18, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.1 μg/m3 (14) | 2.9 μg/m3 (13) | 14.0 | |
| Jan. 18, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 19.3 μg/m3 (18) | 3.1 μg/m3 (13) | 18.0 | |
| Jan. 18, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.2 μg/m3 (17) | 3.7 μg/m3 (16) | 17.0 | |
| Jan. 18, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.8 μg/m3 (13) | 3.1 μg/m3 (13) | 13.0 | |
| Jan. 17, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.7 μg/m3 (17) | 3.6 μg/m3 (16) | 17.0 | |
| Jan. 17, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 μg/m3 (15) | 3.0 μg/m3 (13) | 15.0 | |
| Jan. 17, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.5 μg/m3 (20) | 3.2 μg/m3 (14) | 20.0 | |
| Jan. 17, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.3 μg/m3 (16) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 17, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.1 μg/m3 (11) | 3.5 μg/m3 (15) | 15.0 | |
| Jan. 17, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.3 μg/m3 (11) | 3.6 μg/m3 (16) | 16.0 | |
| Jan. 17, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.8 μg/m3 (15) | 5.8 μg/m3 (25) | 25.0 | |
| Jan. 17, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.1 μg/m3 (15) | 5.2 μg/m3 (22) | 22.0 | |
| Jan. 17, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.8 μg/m3 (10) | 3.4 μg/m3 (15) | 15.0 | |
| Jan. 17, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.8 μg/m3 (8) | 2.2 μg/m3 (10) | 10.0 | |
| Jan. 17, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.5 μg/m3 (6) | 2.2 μg/m3 (10) | 10.0 | |
| Jan. 17, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.9 μg/m3 (7) | 2.6 μg/m3 (11) | 11.0 | |
| Jan. 17, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.1 μg/m3 (7) | 2.8 μg/m3 (12) | 12.0 | |
| Jan. 17, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.9 μg/m3 (9) | 3.3 μg/m3 (14) | 14.0 | |
| Jan. 17, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.6 μg/m3 (8) | 3.5 μg/m3 (15) | 15.0 | |
| Jan. 17, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.1 μg/m3 (9) | 3.8 μg/m3 (16) | 16.0 | |
| Jan. 17, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.7 μg/m3 (9) | 3.9 μg/m3 (17) | 17.0 | |
| Jan. 17, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 μg/m3 (10) | 4.1 μg/m3 (18) | 18.0 | |
| Jan. 17, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.7 μg/m3 (10) | 4.1 μg/m3 (18) | 18.0 | |
| Jan. 17, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.5 μg/m3 (14) | 5.5 μg/m3 (23) | 23.0 | |
| Jan. 17, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.6 μg/m3 (20) | 8.2 μg/m3 (35) | 35.0 | |
| Jan. 17, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.4 μg/m3 (17) | 5.4 μg/m3 (23) | 23.0 | |
| Jan. 17, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.6 μg/m3 (15) | 4.2 μg/m3 (18) | 18.0 | |
| Jan. 17, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.4 μg/m3 (13) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 16, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 μg/m3 (14) | 3.4 μg/m3 (15) | 15.0 | |
| Jan. 16, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.5 μg/m3 (15) | 3.3 μg/m3 (14) | 15.0 | |
| Jan. 16, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.2 μg/m3 (15) | 3.5 μg/m3 (15) | 15.0 | |
| Jan. 16, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.9 μg/m3 (12) | 4.1 μg/m3 (18) | 18.0 | |
| Jan. 16, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.5 μg/m3 (11) | 3.8 μg/m3 (16) | 16.0 | |
| Jan. 16, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.5 μg/m3 (10) | 3.2 μg/m3 (14) | 14.0 | |
| Jan. 16, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 μg/m3 (13) | 4.5 μg/m3 (19) | 19.0 | |
| Jan. 16, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 19.2 μg/m3 (18) | 5.9 μg/m3 (25) | 25.0 | |
| Jan. 16, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 19.8 μg/m3 (19) | 5.5 μg/m3 (23) | 23.0 | |
| Jan. 16, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.7 μg/m3 (13) | 4.2 μg/m3 (18) | 18.0 | |
| Jan. 16, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.8 μg/m3 (13) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 16, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.1 μg/m3 (14) | 4.6 μg/m3 (20) | 20.0 | |
| Jan. 16, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.1 μg/m3 (13) | 4.6 μg/m3 (20) | 20.0 | |
| Jan. 16, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.4 μg/m3 (14) | 4.8 μg/m3 (20) | 20.0 | |
| Jan. 16, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.3 μg/m3 (11) | 4.1 μg/m3 (18) | 18.0 | |
| Jan. 16, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.4 μg/m3 (13) | 5.5 μg/m3 (23) | 23.0 | |
| Jan. 16, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.1 μg/m3 (16) | 5.9 μg/m3 (25) | 25.0 | |
| Jan. 16, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 27.7 μg/m3 (26) | 10.1 μg/m3 (43) | 43.0 | |
| Jan. 16, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 38.7 μg/m3 (36) | 13.6 μg/m3 (55) | 55.0 | |
| Jan. 16, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 46.5 μg/m3 (44) | 17.0 μg/m3 (62) | 62.0 | |
| Jan. 16, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 41.4 μg/m3 (39) | 10.3 μg/m3 (43) | 43.0 | |
| Jan. 16, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 52.8 μg/m3 (49) | 14.2 μg/m3 (56) | 56.0 | |
| Jan. 16, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 78.8 μg/m3 (63) | 27.2 μg/m3 (83) | 83.0 | |
| Jan. 16, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 87.3 μg/m3 (67) | 13.0 μg/m3 (53) | 67.0 | |
| Jan. 15, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 30.8 μg/m3 (29) | 5.1 μg/m3 (22) | 29.0 | |
| Jan. 15, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 24.3 μg/m3 (23) | 3.9 μg/m3 (17) | 23.0 | |
| Jan. 15, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.7 μg/m3 (18) | 3.7 μg/m3 (16) | 18.0 | |
| Jan. 15, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.8 μg/m3 (21) | 3.7 μg/m3 (16) | 21.0 | |
| Jan. 15, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.6 μg/m3 (20) | 3.6 μg/m3 (16) | 20.0 | |
| Jan. 15, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 22.1 μg/m3 (21) | 4.2 μg/m3 (18) | 21.0 | |
| Jan. 15, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 29.3 μg/m3 (28) | 6.2 μg/m3 (26) | 28.0 | |
| Jan. 15, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 36.7 μg/m3 (34) | 7.7 μg/m3 (33) | 34.0 | |
| Jan. 15, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 37.5 μg/m3 (35) | 7.0 μg/m3 (30) | 35.0 | |
| Jan. 15, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 33.7 μg/m3 (32) | 6.1 μg/m3 (26) | 32.0 | |
| Jan. 15, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 35.7 μg/m3 (34) | 5.8 μg/m3 (25) | 34.0 | |
| Jan. 15, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 24.1 μg/m3 (23) | 5.1 μg/m3 (22) | 23.0 | |
| Jan. 15, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.1 μg/m3 (20) | 5.1 μg/m3 (22) | 22.0 | |
| Jan. 15, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.1 μg/m3 (20) | 4.9 μg/m3 (21) | 21.0 | |
| Jan. 15, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 22.9 μg/m3 (22) | 5.5 μg/m3 (23) | 23.0 | |
| Jan. 15, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 27.4 μg/m3 (26) | 6.4 μg/m3 (27) | 27.0 | |
| Jan. 15, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 40.8 μg/m3 (38) | 9.1 μg/m3 (38) | 38.0 | |
| Jan. 15, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.5 μg/m3 (22) | 6.1 μg/m3 (26) | 26.0 | |
| Jan. 15, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.2 μg/m3 (16) | 3.8 μg/m3 (16) | 16.0 | |
| Jan. 15, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 25.7 μg/m3 (24) | 7.3 μg/m3 (31) | 31.0 | |
| Jan. 15, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 25.2 μg/m3 (24) | 5.4 μg/m3 (23) | 24.0 | |
| Jan. 15, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 24.2 μg/m3 (23) | 4.1 μg/m3 (18) | 23.0 | |
| Jan. 15, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 34.4 μg/m3 (32) | 10.2 μg/m3 (43) | 43.0 | |
| Jan. 15, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 μg/m3 (46) | 7.4 μg/m3 (31) | 46.0 | |
| Jan. 14, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 μg/m3 (31) | 4.2 μg/m3 (18) | 31.0 | |
| Jan. 14, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 53.2 μg/m3 (50) | 5.1 μg/m3 (22) | 50.0 | |
| Jan. 14, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 34.4 μg/m3 (32) | 3.8 μg/m3 (16) | 32.0 | |
| Jan. 14, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.7 μg/m3 (15) | 2.4 μg/m3 (10) | 15.0 |