Yellowstone National Park (82190) WY, US: 44.373056, -110.830833
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| June 15, 2021, 10 a.m. | 0.5 ppb (1) | 0.1 ppb (1) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 15, 2021, 9 a.m. | 0.4 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 15, 2021, 8 a.m. | 0.4 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 15, 2021, 7 a.m. | 0.5 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 15, 2021, 6 a.m. | 1.5 ppb (2) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 15, 2021, 5 a.m. | 1.5 ppb (2) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 2.0 | |
| June 15, 2021, 4 a.m. | 2.8 ppb (3) | 0.7 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
| June 15, 2021, 3 a.m. | 1.1 ppb (2) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 15, 2021, 2 a.m. | 3.1 ppb (3) | 0.4 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
| June 15, 2021, 1 a.m. | 2.2 ppb (3) | 0.3 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 3.0 | |
| June 15, 2021, midnight | 2.7 ppb (3) | 0.9 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 14, 2021, 11 p.m. | 3.2 ppb (4) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 14, 2021, 10 p.m. | 2.9 ppb (3) | 1.1 ppb (2) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 14, 2021, 9 p.m. | 2.2 ppb (3) | 0.6 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 14, 2021, 8 p.m. | 3.3 ppb (4) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
| June 14, 2021, 7 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 14, 2021, 6 p.m. | 2.8 ppb (3) | 1.4 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 14, 2021, 5 p.m. | 2.2 ppb (3) | 0.7 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 14, 2021, 4 p.m. | 2.0 ppb (2) | 0.6 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 14, 2021, 3 p.m. | 1.5 ppb (2) | 0.5 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 14, 2021, 2 p.m. | 3.4 ppb (4) | 1.4 ppb (2) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 14, 2021, 1 p.m. | 2.2 ppb (3) | 1.0 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 14, 2021, noon | 2.0 ppb (2) | 1.0 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 14, 2021, 11 a.m. | 1.1 ppb (2) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
| June 14, 2021, 10 a.m. | 0.3 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | -1.0 μg/m3 (0) | 1.0 | |
| June 14, 2021, 9 a.m. | 0.3 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 1.0 | |
| June 14, 2021, 8 a.m. | 0.3 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 14, 2021, 7 a.m. | 0.3 ppb (1) | 0.1 ppb (1) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 14, 2021, 6 a.m. | 0.5 ppb (1) | 0.1 ppb (1) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 14, 2021, 5 a.m. | 5.6 ppb (6) | 4.0 ppb (4) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| June 14, 2021, 4 a.m. | 3.7 ppb (4) | 2.3 ppb (3) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| June 14, 2021, 3 a.m. | 2.8 ppb (3) | 1.6 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 14, 2021, 2 a.m. | 3.7 ppb (4) | 2.0 ppb (2) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 14, 2021, 1 a.m. | 1.3 ppb (2) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 14, 2021, midnight | 2.5 ppb (3) | 1.1 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 13, 2021, 11 p.m. | 3.5 ppb (4) | 1.2 ppb (2) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 13, 2021, 10 p.m. | 1.6 ppb (2) | 0.5 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | -1.0 μg/m3 (0) | 2.0 | |
| June 13, 2021, 9 p.m. | 2.1 ppb (2) | 0.9 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | -1.0 μg/m3 (0) | 2.0 | |
| June 13, 2021, 8 p.m. | 1.1 ppb (2) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
| June 13, 2021, 7 p.m. | 1.5 ppb (2) | 0.5 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 2.0 | |
| June 13, 2021, 6 p.m. | 1.4 ppb (2) | 0.4 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 2.0 | |
| June 13, 2021, 5 p.m. | 1.6 ppb (2) | 0.5 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
| June 13, 2021, 4 p.m. | 2.1 ppb (2) | 0.8 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 13, 2021, 3 p.m. | 2.3 ppb (3) | 0.8 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 13, 2021, 2 p.m. | 4.8 ppb (5) | 1.9 ppb (2) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | N/A | N/A | -1.0 μg/m3 (0) | 5.0 | |
| June 13, 2021, 1 p.m. | 2.1 ppb (2) | 0.7 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 2.0 | |
| June 13, 2021, noon | 4.9 ppb (5) | 3.1 ppb (3) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
| June 13, 2021, 11 a.m. | 1.1 ppb (2) | 0.5 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | -1.0 μg/m3 (0) | 2.0 | |
| June 13, 2021, 10 a.m. | 0.2 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
| June 13, 2021, 9 a.m. | 0.3 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 13, 2021, 8 a.m. | 0.3 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 13, 2021, 7 a.m. | 0.4 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 13, 2021, 6 a.m. | 0.5 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
| June 13, 2021, 5 a.m. | 0.5 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | -1.0 μg/m3 (0) | 1.0 | |
| June 13, 2021, 4 a.m. | 1.6 ppb (2) | 0.5 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 13, 2021, 3 a.m. | 1.4 ppb (2) | 0.5 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 13, 2021, 2 a.m. | 3.4 ppb (4) | 0.8 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 13, 2021, 1 a.m. | 1.8 ppb (2) | 0.4 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 2.0 | |
| June 13, 2021, midnight | 2.0 ppb (2) | 0.6 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | -2.0 μg/m3 (0) | 2.0 | |
| June 12, 2021, 11 p.m. | 2.1 ppb (2) | 0.8 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | -2.0 μg/m3 (0) | 2.0 | |
| June 12, 2021, 10 p.m. | 1.7 ppb (2) | 0.6 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | -1.0 μg/m3 (0) | 2.0 | |
| June 12, 2021, 9 p.m. | 2.4 ppb (3) | 1.1 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 3.0 | |
| June 12, 2021, 8 p.m. | 2.2 ppb (3) | 1.0 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | -1.0 μg/m3 (0) | 3.0 | |
| June 12, 2021, 7 p.m. | 1.4 ppb (2) | 0.5 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 2.0 | |
| June 12, 2021, 6 p.m. | 2.4 ppb (3) | 1.1 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
| June 12, 2021, 5 p.m. | 1.6 ppb (2) | 0.6 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | -1.0 μg/m3 (0) | 2.0 | |
| June 12, 2021, 4 p.m. | 1.9 ppb (2) | 0.5 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
| June 12, 2021, 3 p.m. | 1.4 ppb (2) | 0.5 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 12, 2021, 2 p.m. | 2.2 ppb (3) | 0.9 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 12, 2021, 1 p.m. | 3.7 ppb (4) | 1.6 ppb (2) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 12, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 12, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 12, 2021, 10 a.m. | 0.4 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 12, 2021, 9 a.m. | 0.8 ppb (1) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
| June 12, 2021, 8 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 12, 2021, 7 a.m. | 0.5 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| June 12, 2021, 6 a.m. | 0.6 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 12, 2021, 5 a.m. | 0.9 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 12, 2021, 4 a.m. | 3.8 ppb (4) | 1.4 ppb (2) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 12, 2021, 3 a.m. | 3.4 ppb (4) | 1.7 ppb (2) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 12, 2021, 2 a.m. | 2.7 ppb (3) | 0.6 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
| June 12, 2021, 1 a.m. | 1.7 ppb (2) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 2.0 | |
| June 12, 2021, midnight | 2.5 ppb (3) | 0.8 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 11, 2021, 11 p.m. | 2.3 ppb (3) | 0.6 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 3.0 | |
| June 11, 2021, 10 p.m. | 2.1 ppb (2) | 0.7 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 11, 2021, 9 p.m. | 2.6 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 3.0 | |
| June 11, 2021, 8 p.m. | 2.5 ppb (3) | 0.9 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | -2.0 μg/m3 (0) | 3.0 | |
| June 11, 2021, 7 p.m. | 3.9 ppb (4) | 1.7 ppb (2) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 4.0 | |
| June 11, 2021, 6 p.m. | 2.3 ppb (3) | 0.9 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
| June 11, 2021, 5 p.m. | 2.2 ppb (3) | 1.4 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | -1.0 μg/m3 (0) | 3.0 | |
| June 11, 2021, 4 p.m. | 1.5 ppb (2) | 0.6 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
| June 11, 2021, 3 p.m. | 1.2 ppb (2) | 0.5 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 11, 2021, 2 p.m. | 1.3 ppb (2) | 0.4 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 11, 2021, 1 p.m. | 3.0 ppb (3) | 1.2 ppb (2) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 11, 2021, noon | 4.0 ppb (4) | 2.4 ppb (3) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
| June 11, 2021, 11 a.m. | 0.8 ppb (1) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 11, 2021, 10 a.m. | 0.5 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 11, 2021, 9 a.m. | 0.4 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
| June 11, 2021, 8 a.m. | 0.4 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
| June 11, 2021, 7 a.m. | 0.4 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 11, 2021, 6 a.m. | 0.5 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 11, 2021, 5 a.m. | 0.6 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 11, 2021, 4 a.m. | 0.9 ppb (1) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | -1.0 μg/m3 (0) | 1.0 | |
| June 11, 2021, 3 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | -1.0 μg/m3 (0) | 1.0 | |
| June 11, 2021, 2 a.m. | 1.3 ppb (2) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | -2.0 μg/m3 (0) | 2.0 | |
| June 11, 2021, 1 a.m. | 1.8 ppb (2) | 0.6 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 2.0 | |
| June 11, 2021, midnight | 1.7 ppb (2) | 0.5 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 10, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| June 10, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | |
| June 10, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 10, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | |
| June 10, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | |
| June 10, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | |
| June 10, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | |
| June 10, 2021, 3 p.m. | 0.9 ppb (1) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 | |
| June 10, 2021, 2 p.m. | 0.7 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 | |
| June 10, 2021, 1 p.m. | 0.7 ppb (1) | -0.1 ppb (0) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 | |
| June 10, 2021, noon | 1.7 ppb (2) | 0.4 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 | |
| June 10, 2021, 11 a.m. | 0.0 ppb (0) | -0.3 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 | |
| June 10, 2021, 10 a.m. | -0.2 ppb (0) | -0.3 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 | |
| June 10, 2021, 9 a.m. | 1.4 ppb (2) | 0.5 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 | |
| June 10, 2021, 8 a.m. | -0.2 ppb (0) | -0.3 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 | |
| June 10, 2021, 7 a.m. | -0.2 ppb (0) | -0.3 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 | |
| June 10, 2021, 6 a.m. | -0.1 ppb (0) | -0.3 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 | |
| June 10, 2021, 5 a.m. | 1.1 ppb (2) | 0.5 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 | |
| June 10, 2021, 4 a.m. | 0.0 ppb (0) | -0.4 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 | |
| June 10, 2021, 3 a.m. | 2.8 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 | |
| June 10, 2021, 2 a.m. | 3.0 ppb (3) | 0.9 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 | |
| June 10, 2021, 1 a.m. | 1.7 ppb (2) | 0.1 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 | |
| June 10, 2021, midnight | 1.5 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 | |
| June 9, 2021, 11 p.m. | 0.9 ppb (1) | -0.1 ppb (0) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 | |
| June 9, 2021, 10 p.m. | 1.3 ppb (2) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 | |
| June 9, 2021, 9 p.m. | 2.9 ppb (3) | 1.2 ppb (2) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 | |
| June 9, 2021, 8 p.m. | 1.2 ppb (2) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 | |
| June 9, 2021, 7 p.m. | 2.3 ppb (3) | 0.7 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 | |
| June 9, 2021, 6 p.m. | 4.0 ppb (4) | 1.8 ppb (2) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 | |
| June 9, 2021, 5 p.m. | 1.6 ppb (2) | 0.4 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 | |
| June 9, 2021, 4 p.m. | 1.2 ppb (2) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 | |
| June 9, 2021, 3 p.m. | 0.7 ppb (1) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 | |
| June 9, 2021, 2 p.m. | 1.9 ppb (2) | 0.7 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 9, 2021, 1 p.m. | 2.2 ppb (3) | 1.0 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 9, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| June 9, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| June 9, 2021, 10 a.m. | 1.3 ppb (2) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 9, 2021, 9 a.m. | 0.3 ppb (1) | -0.2 ppb (0) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| June 9, 2021, 8 a.m. | 0.0 ppb (0) | -0.3 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| June 9, 2021, 7 a.m. | 0.0 ppb (0) | -0.2 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 9, 2021, 6 a.m. | 0.0 ppb (0) | -0.2 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| June 9, 2021, 5 a.m. | 0.2 ppb (1) | -0.1 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 9, 2021, 4 a.m. | 0.9 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 9, 2021, 3 a.m. | 3.3 ppb (4) | 1.7 ppb (2) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 9, 2021, 2 a.m. | 2.6 ppb (3) | 0.3 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 9, 2021, 1 a.m. | 1.6 ppb (2) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 9, 2021, midnight | 2.1 ppb (2) | 0.7 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| June 8, 2021, 11 p.m. | 1.6 ppb (2) | 0.6 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 8, 2021, 10 p.m. | 2.1 ppb (2) | 0.5 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 8, 2021, 9 p.m. | 1.6 ppb (2) | 0.4 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 8, 2021, 8 p.m. | 1.3 ppb (2) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| June 8, 2021, 7 p.m. | 1.7 ppb (2) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (30) | 30.0 | |
| June 8, 2021, 6 p.m. | 2.0 ppb (2) | 0.6 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 | |
| June 8, 2021, 5 p.m. | 2.1 ppb (2) | 0.4 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 | |
| June 8, 2021, 4 p.m. | 1.0 ppb (1) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| June 8, 2021, 3 p.m. | 2.5 ppb (3) | 1.0 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| June 8, 2021, 2 p.m. | 3.7 ppb (4) | 1.2 ppb (2) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| June 8, 2021, 1 p.m. | 2.6 ppb (3) | 0.8 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 8, 2021, noon | 2.8 ppb (3) | 0.6 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 8, 2021, 11 a.m. | 0.0 ppb (0) | -0.3 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 8, 2021, 10 a.m. | -0.3 ppb (0) | -0.3 ppb (0) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 |