Mammoth Lakes (Mill City) CA, US: 37.645718, -118.966515
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 26, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.7 μg/m3 (5) | 0.9 μg/m3 (4) | 5.0 | |
| March 26, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.2 μg/m3 (3) | 0.8 μg/m3 (4) | 4.0 | |
| March 26, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.9 μg/m3 (3) | 0.8 μg/m3 (4) | 4.0 | |
| March 26, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.8 μg/m3 (6) | 1.0 μg/m3 (5) | 6.0 | |
| March 26, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.9 μg/m3 (6) | 1.7 μg/m3 (8) | 8.0 | |
| March 26, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.4 μg/m3 (5) | 2.0 μg/m3 (9) | 9.0 | |
| March 26, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.2 μg/m3 (10) | 4.1 μg/m3 (18) | 18.0 | |
| March 26, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.3 μg/m3 (6) | 2.2 μg/m3 (10) | 10.0 | |
| March 26, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.9 μg/m3 (12) | 3.3 μg/m3 (14) | 14.0 | |
| March 26, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.9 μg/m3 (18) | 8.3 μg/m3 (35) | 35.0 | |
| March 26, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.5 μg/m3 (18) | 7.8 μg/m3 (33) | 33.0 | |
| March 26, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 19.4 μg/m3 (18) | 6.1 μg/m3 (26) | 26.0 | |
| March 25, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.5 μg/m3 (22) | 7.1 μg/m3 (30) | 30.0 | |
| March 25, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 22.7 μg/m3 (22) | 6.9 μg/m3 (29) | 29.0 | |
| March 25, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.4 μg/m3 (17) | 6.0 μg/m3 (25) | 25.0 | |
| March 25, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 19.1 μg/m3 (18) | 5.3 μg/m3 (23) | 23.0 | |
| March 25, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.7 μg/m3 (16) | 4.6 μg/m3 (20) | 20.0 | |
| March 25, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.7 μg/m3 (17) | 4.8 μg/m3 (20) | 20.0 | |
| March 25, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 19.7 μg/m3 (19) | 4.7 μg/m3 (20) | 20.0 | |
| March 25, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 μg/m3 (15) | 4.8 μg/m3 (20) | 20.0 | |
| March 25, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.4 μg/m3 (17) | 4.6 μg/m3 (20) | 20.0 | |
| March 25, 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) | 4.8 μg/m3 (20) | 20.0 | |
| March 25, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.5 μg/m3 (18) | 4.7 μg/m3 (20) | 20.0 | |
| March 25, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.6 μg/m3 (18) | 4.8 μg/m3 (20) | 20.0 | |
| March 25, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.3 μg/m3 (17) | 5.4 μg/m3 (23) | 23.0 | |
| March 25, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.7 μg/m3 (18) | 5.4 μg/m3 (23) | 23.0 | |
| March 25, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.2 μg/m3 (19) | 5.3 μg/m3 (23) | 23.0 | |
| March 25, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 19.4 μg/m3 (18) | 6.0 μg/m3 (25) | 25.0 | |
| March 25, 2021, 7 a.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 | |
| March 25, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.9 μg/m3 (17) | 5.9 μg/m3 (25) | 25.0 | |
| March 25, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.4 μg/m3 (17) | 6.4 μg/m3 (27) | 27.0 | |
| March 25, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 19.7 μg/m3 (19) | 5.6 μg/m3 (24) | 24.0 | |
| March 25, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 22.9 μg/m3 (22) | 8.6 μg/m3 (36) | 36.0 | |
| March 25, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.1 μg/m3 (22) | 9.0 μg/m3 (38) | 38.0 | |
| March 25, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 22.8 μg/m3 (22) | 7.2 μg/m3 (31) | 31.0 | |
| March 25, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.9 μg/m3 (23) | 6.5 μg/m3 (28) | 28.0 | |
| March 24, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 μg/m3 (17) | 5.0 μg/m3 (21) | 21.0 | |
| March 24, 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) | 4.6 μg/m3 (20) | 20.0 | |
| March 24, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.1 μg/m3 (15) | 4.4 μg/m3 (19) | 19.0 | |
| March 24, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 22.5 μg/m3 (21) | 4.8 μg/m3 (20) | 21.0 | |
| March 24, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.5 μg/m3 (17) | 4.0 μg/m3 (17) | 17.0 | |
| March 24, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 24.3 μg/m3 (23) | 4.4 μg/m3 (19) | 23.0 | |
| March 24, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 33.7 μg/m3 (32) | 6.3 μg/m3 (27) | 32.0 | |
| March 24, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 29.4 μg/m3 (28) | 8.1 μg/m3 (34) | 34.0 | |
| March 24, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 106.8 μg/m3 (77) | 27.0 μg/m3 (83) | 83.0 | |
| March 24, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 87.3 μg/m3 (67) | 21.4 μg/m3 (71) | 71.0 | |
| March 24, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 30.8 μg/m3 (29) | 11.0 μg/m3 (46) | 46.0 | |
| March 24, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 26.3 μg/m3 (25) | 9.7 μg/m3 (41) | 41.0 | |
| March 24, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.7 μg/m3 (15) | 5.6 μg/m3 (24) | 24.0 | |
| March 24, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.4 μg/m3 (17) | 5.8 μg/m3 (25) | 25.0 | |
| March 24, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.9 μg/m3 (14) | 3.9 μg/m3 (17) | 17.0 | |
| March 24, 2021, 8 a.m. | 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 | |
| March 24, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.5 μg/m3 (16) | 3.9 μg/m3 (17) | 17.0 | |
| March 24, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 22.5 μg/m3 (21) | 4.0 μg/m3 (17) | 21.0 | |
| March 24, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.4 μg/m3 (17) | 4.0 μg/m3 (17) | 17.0 | |
| March 24, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.6 μg/m3 (18) | 3.7 μg/m3 (16) | 18.0 | |
| March 24, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.4 μg/m3 (15) | 3.5 μg/m3 (15) | 15.0 | |
| March 24, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.1 μg/m3 (15) | 3.5 μg/m3 (15) | 15.0 | |
| March 24, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 μg/m3 (24) | 3.8 μg/m3 (16) | 24.0 | |
| March 24, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.3 μg/m3 (20) | 3.5 μg/m3 (15) | 20.0 | |
| March 23, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.1 μg/m3 (19) | 3.1 μg/m3 (13) | 19.0 | |
| March 23, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.4 μg/m3 (20) | 3.6 μg/m3 (16) | 20.0 | |
| March 23, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.9 μg/m3 (20) | 3.3 μg/m3 (14) | 20.0 | |
| March 23, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.9 μg/m3 (15) | 2.6 μg/m3 (11) | 15.0 | |
| March 23, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.1 μg/m3 (13) | 2.5 μg/m3 (11) | 13.0 | |
| March 23, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.9 μg/m3 (10) | 2.2 μg/m3 (10) | 10.0 | |
| March 23, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.9 μg/m3 (9) | 2.1 μg/m3 (9) | 9.0 | |
| March 23, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.4 μg/m3 (9) | 2.0 μg/m3 (9) | 9.0 | |
| March 23, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.3 μg/m3 (8) | 1.7 μg/m3 (8) | 8.0 | |
| March 23, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.9 μg/m3 (8) | 1.6 μg/m3 (7) | 8.0 | |
| March 23, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.1 μg/m3 (6) | 0.9 μg/m3 (4) | 6.0 | |
| March 23, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.7 μg/m3 (6) | 1.0 μg/m3 (5) | 6.0 | |
| March 23, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.2 μg/m3 (11) | 1.3 μg/m3 (6) | 11.0 | |
| March 23, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.7 μg/m3 (18) | 5.5 μg/m3 (23) | 23.0 | |
| March 23, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.4 μg/m3 (18) | 6.3 μg/m3 (27) | 27.0 | |
| March 23, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 19.8 μg/m3 (19) | 6.4 μg/m3 (27) | 27.0 | |
| March 23, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.1 μg/m3 (17) | 6.9 μg/m3 (29) | 29.0 | |
| March 23, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.2 μg/m3 (19) | 7.3 μg/m3 (31) | 31.0 | |
| March 23, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.8 μg/m3 (17) | 8.4 μg/m3 (36) | 36.0 | |
| March 23, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.7 μg/m3 (17) | 8.6 μg/m3 (36) | 36.0 | |
| March 23, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 22.6 μg/m3 (21) | 9.5 μg/m3 (40) | 40.0 | |
| March 23, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 μg/m3 (23) | 8.6 μg/m3 (36) | 36.0 | |
| March 23, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.6 μg/m3 (16) | 6.3 μg/m3 (27) | 27.0 | |
| March 23, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.7 μg/m3 (21) | 6.0 μg/m3 (25) | 25.0 | |
| March 22, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.2 μg/m3 (20) | 4.7 μg/m3 (20) | 20.0 | |
| March 22, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 μg/m3 (22) | 4.7 μg/m3 (20) | 22.0 | |
| March 22, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.8 μg/m3 (16) | 4.4 μg/m3 (19) | 19.0 | |
| March 22, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.3 μg/m3 (17) | 4.7 μg/m3 (20) | 20.0 | |
| March 22, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.5 μg/m3 (22) | 4.7 μg/m3 (20) | 22.0 | |
| March 22, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.2 μg/m3 (17) | 4.4 μg/m3 (19) | 19.0 | |
| March 22, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 μg/m3 (20) | 4.7 μg/m3 (20) | 20.0 | |
| March 22, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.9 μg/m3 (20) | 5.5 μg/m3 (23) | 23.0 | |
| March 22, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 27.5 μg/m3 (26) | 7.6 μg/m3 (32) | 32.0 | |
| March 22, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 24.5 μg/m3 (23) | 7.5 μg/m3 (32) | 32.0 | |
| March 22, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.3 μg/m3 (22) | 7.9 μg/m3 (33) | 33.0 | |
| March 22, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 27.3 μg/m3 (26) | 10.3 μg/m3 (43) | 43.0 | |
| March 22, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 26.1 μg/m3 (25) | 12.1 μg/m3 (51) | 51.0 | |
| March 22, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 26.1 μg/m3 (25) | 9.8 μg/m3 (41) | 41.0 | |
| March 22, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.1 μg/m3 (17) | 7.6 μg/m3 (32) | 32.0 | |
| March 22, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.9 μg/m3 (21) | 10.4 μg/m3 (44) | 44.0 | |
| March 22, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.8 μg/m3 (23) | 10.8 μg/m3 (46) | 46.0 | |
| March 22, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 34.7 μg/m3 (33) | 14.7 μg/m3 (57) | 57.0 | |
| March 22, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 μg/m3 (52) | 24.2 μg/m3 (77) | 77.0 | |
| March 22, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 90.7 μg/m3 (69) | 50.7 μg/m3 (139) | 139.0 | |
| March 22, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 89.8 μg/m3 (69) | 43.8 μg/m3 (122) | 122.0 | |
| March 22, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 59.6 μg/m3 (54) | 24.5 μg/m3 (78) | 78.0 | |
| March 22, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.1 μg/m3 (15) | 3.2 μg/m3 (14) | 15.0 | |
| March 22, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.4 μg/m3 (15) | 2.1 μg/m3 (9) | 15.0 | |
| March 21, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.6 μg/m3 (15) | 2.2 μg/m3 (10) | 15.0 | |
| March 21, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.7 μg/m3 (11) | 1.5 μg/m3 (7) | 11.0 | |
| March 21, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.2 μg/m3 (11) | 1.5 μg/m3 (7) | 11.0 | |
| March 21, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.7 μg/m3 (14) | 1.7 μg/m3 (8) | 14.0 | |
| March 21, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.6 μg/m3 (14) | 1.6 μg/m3 (7) | 14.0 | |
| March 21, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.8 μg/m3 (17) | 1.8 μg/m3 (8) | 17.0 | |
| March 21, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.1 μg/m3 (17) | 1.7 μg/m3 (8) | 17.0 | |
| March 21, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.5 μg/m3 (15) | 2.1 μg/m3 (9) | 15.0 | |
| March 21, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.1 μg/m3 (14) | 2.3 μg/m3 (10) | 14.0 | |
| March 21, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.3 μg/m3 (16) | 2.3 μg/m3 (10) | 16.0 | |
| March 21, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.4 μg/m3 (7) | 1.2 μg/m3 (5) | 7.0 | |
| March 21, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.6 μg/m3 (6) | 0.9 μg/m3 (4) | 6.0 | |
| March 21, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.3 μg/m3 (5) | 1.8 μg/m3 (8) | 8.0 | |
| March 21, 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) | 3.4 μg/m3 (15) | 15.0 | |
| March 21, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.3 μg/m3 (10) | 4.3 μg/m3 (18) | 18.0 | |
| March 21, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.8 μg/m3 (10) | 3.8 μg/m3 (16) | 16.0 | |
| March 21, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.3 μg/m3 (8) | 1.9 μg/m3 (8) | 8.0 | |
| March 21, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 μg/m3 (11) | 2.3 μg/m3 (10) | 11.0 | |
| March 21, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 34.2 μg/m3 (32) | 17.9 μg/m3 (64) | 64.0 | |
| March 21, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 52.8 μg/m3 (49) | 22.4 μg/m3 (73) | 73.0 | |
| March 21, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 67.3 μg/m3 (58) | 32.1 μg/m3 (94) | 94.0 | |
| March 21, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 μg/m3 (43) | 19.1 μg/m3 (66) | 66.0 | |
| March 21, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 34.6 μg/m3 (33) | 16.0 μg/m3 (60) | 60.0 | |
| March 21, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.6 μg/m3 (20) | 7.8 μg/m3 (33) | 33.0 | |
| March 20, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.1 μg/m3 (17) | 5.4 μg/m3 (23) | 23.0 | |
| March 20, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.6 μg/m3 (16) | 4.4 μg/m3 (19) | 19.0 | |
| March 20, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.1 μg/m3 (14) | 4.3 μg/m3 (18) | 18.0 | |
| March 20, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.2 μg/m3 (15) | 4.7 μg/m3 (20) | 20.0 | |
| March 20, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 μg/m3 (19) | 5.9 μg/m3 (25) | 25.0 | |
| March 20, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.8 μg/m3 (17) | 6.1 μg/m3 (26) | 26.0 | |
| March 20, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.2 μg/m3 (15) | 5.8 μg/m3 (25) | 25.0 | |
| March 20, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.4 μg/m3 (22) | 7.8 μg/m3 (33) | 33.0 | |
| March 20, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.4 μg/m3 (19) | 7.7 μg/m3 (33) | 33.0 | |
| March 20, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.1 μg/m3 (13) | 4.7 μg/m3 (20) | 20.0 | |
| March 20, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (7) | 3.3 μg/m3 (14) | 14.0 | |
| March 20, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.5 μg/m3 (3) | 1.6 μg/m3 (7) | 7.0 | |
| March 20, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.7 μg/m3 (3) | 1.5 μg/m3 (7) | 7.0 | |
| March 20, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.7 μg/m3 (3) | 1.1 μg/m3 (5) | 5.0 | |
| March 20, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.6 μg/m3 (6) | 2.2 μg/m3 (10) | 10.0 | |
| March 20, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.2 μg/m3 (7) | 3.0 μg/m3 (13) | 13.0 | |
| March 20, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.4 μg/m3 (7) | 3.8 μg/m3 (16) | 16.0 | |
| March 20, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.5 μg/m3 (7) | 3.9 μg/m3 (17) | 17.0 | |
| March 20, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.5 μg/m3 (11) | 6.4 μg/m3 (27) | 27.0 | |
| March 20, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.4 μg/m3 (11) | 6.3 μg/m3 (27) | 27.0 | |
| March 20, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.6 μg/m3 (17) | 10.2 μg/m3 (43) | 43.0 | |
| March 20, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.4 μg/m3 (13) | 7.3 μg/m3 (31) | 31.0 | |
| March 20, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.5 μg/m3 (11) | 6.4 μg/m3 (27) | 27.0 | |
| March 20, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.6 μg/m3 (8) | 4.8 μg/m3 (20) | 20.0 | |
| March 19, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.9 μg/m3 (7) | 3.7 μg/m3 (16) | 16.0 | |
| March 19, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.2 μg/m3 (6) | 3.5 μg/m3 (15) | 15.0 | |
| March 19, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.2 μg/m3 (5) | 2.3 μg/m3 (10) | 10.0 | |
| March 19, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.2 μg/m3 (3) | 1.7 μg/m3 (8) | 8.0 | |
| March 19, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.9 μg/m3 (4) | 2.1 μg/m3 (9) | 9.0 | |
| March 19, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.2 μg/m3 (5) | 1.8 μg/m3 (8) | 8.0 | |
| March 19, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.5 μg/m3 (4) | 1.8 μg/m3 (8) | 8.0 | |
| March 19, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.8 μg/m3 (6) | 3.1 μg/m3 (13) | 13.0 | |
| March 19, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.4 μg/m3 (7) | 3.7 μg/m3 (16) | 16.0 | |
| March 19, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.7 μg/m3 (5) | 2.7 μg/m3 (12) | 12.0 | |
| March 19, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.6 μg/m3 (5) | 2.6 μg/m3 (11) | 11.0 | |
| March 19, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.6 μg/m3 (4) | 1.8 μg/m3 (8) | 8.0 |