Seattle (10th Ave S) WA, US: 47.5309, -122.3208
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| July 24, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.1 μg/m3 (25) | 25.0 | |
| July 23, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.6 μg/m3 (32) | 32.0 | |
| July 23, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.8 μg/m3 (32) | 32.0 | |
| July 23, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.2 μg/m3 (34) | 34.0 | |
| July 23, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.6 μg/m3 (40) | 40.0 | |
| July 23, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.5 μg/m3 (31) | 31.0 | |
| July 23, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.3 μg/m3 (30) | 30.0 | |
| July 23, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.2 μg/m3 (30) | 30.0 | |
| July 23, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.4 μg/m3 (27) | 27.0 | |
| July 23, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.6 μg/m3 (23) | 23.0 | |
| July 23, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.1 μg/m3 (21) | 21.0 | |
| July 23, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.4 μg/m3 (23) | 23.0 | |
| July 23, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.7 μg/m3 (20) | 20.0 | |
| July 23, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.8 μg/m3 (20) | 20.0 | |
| July 23, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.5 μg/m3 (27) | 27.0 | |
| July 23, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.5 μg/m3 (23) | 23.0 | |
| July 23, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.2 μg/m3 (22) | 22.0 | |
| July 23, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.2 μg/m3 (22) | 22.0 | |
| July 23, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.2 μg/m3 (22) | 22.0 | |
| July 23, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.8 μg/m3 (24) | 24.0 | |
| July 23, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.8 μg/m3 (24) | 24.0 | |
| July 23, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.4 μg/m3 (35) | 35.0 | |
| July 23, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.6 μg/m3 (32) | 32.0 | |
| July 23, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.6 μg/m3 (32) | 32.0 | |
| July 23, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.9 μg/m3 (29) | 29.0 | |
| July 22, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.7 μg/m3 (24) | 24.0 | |
| July 22, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.4 μg/m3 (23) | 23.0 | |
| July 22, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.4 μg/m3 (23) | 23.0 | |
| July 22, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.4 μg/m3 (23) | 23.0 | |
| July 22, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.2 μg/m3 (26) | 26.0 | |
| July 22, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.2 μg/m3 (26) | 26.0 | |
| July 22, 2019, 5 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 | |
| July 22, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.9 μg/m3 (25) | 25.0 | |
| July 22, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.1 μg/m3 (25) | 25.0 | |
| July 22, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.7 μg/m3 (24) | 24.0 | |
| July 22, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.9 μg/m3 (25) | 25.0 | |
| July 22, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.7 μg/m3 (28) | 28.0 | |
| July 22, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.1 μg/m3 (30) | 30.0 | |
| July 22, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.3 μg/m3 (30) | 30.0 | |
| July 22, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.4 μg/m3 (31) | 31.0 | |
| July 22, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.4 μg/m3 (35) | 35.0 | |
| July 22, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.3 μg/m3 (30) | 30.0 | |
| July 22, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.2 μg/m3 (30) | 30.0 | |
| July 22, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.8 μg/m3 (32) | 32.0 | |
| July 22, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (29) | 29.0 | |
| July 22, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.3 μg/m3 (30) | 30.0 | |
| July 22, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (29) | 29.0 | |
| July 22, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.9 μg/m3 (33) | 33.0 | |
| July 21, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.5 μg/m3 (31) | 31.0 | |
| July 21, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.6 μg/m3 (32) | 32.0 | |
| July 21, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.8 μg/m3 (32) | 32.0 | |
| July 21, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.6 μg/m3 (32) | 32.0 | |
| July 21, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.6 μg/m3 (56) | 56.0 | |
| July 21, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.2 μg/m3 (34) | 34.0 | |
| July 21, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| July 21, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.7 μg/m3 (36) | 36.0 | |
| July 21, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.9 μg/m3 (33) | 33.0 | |
| July 21, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.2 μg/m3 (34) | 34.0 | |
| July 21, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.8 μg/m3 (32) | 32.0 | |
| July 21, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.2 μg/m3 (34) | 34.0 | |
| July 21, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.4 μg/m3 (35) | 35.0 | |
| July 21, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.8 μg/m3 (37) | 37.0 | |
| July 21, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.3 μg/m3 (35) | 35.0 | |
| July 21, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.6 μg/m3 (32) | 32.0 | |
| July 21, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.5 μg/m3 (31) | 31.0 | |
| July 21, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.6 μg/m3 (36) | 36.0 | |
| July 21, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.4 μg/m3 (35) | 35.0 | |
| July 21, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.1 μg/m3 (30) | 30.0 | |
| July 21, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.5 μg/m3 (27) | 27.0 | |
| July 21, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.5 μg/m3 (27) | 27.0 | |
| July 21, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.9 μg/m3 (25) | 25.0 | |
| July 21, 2019, midnight | 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 | |
| July 20, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.6 μg/m3 (23) | 23.0 | |
| July 20, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.7 μg/m3 (24) | 24.0 | |
| July 20, 2019, 9 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 | |
| July 20, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.9 μg/m3 (25) | 25.0 | |
| July 20, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.8 μg/m3 (24) | 24.0 | |
| July 20, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.6 μg/m3 (28) | 28.0 | |
| July 20, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.4 μg/m3 (31) | 31.0 | |
| July 20, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.6 μg/m3 (32) | 32.0 | |
| July 20, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.2 μg/m3 (26) | 26.0 | |
| July 20, 2019, 2 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 | |
| July 20, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.2 μg/m3 (26) | 26.0 | |
| July 20, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.1 μg/m3 (25) | 25.0 | |
| July 20, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.6 μg/m3 (23) | 23.0 | |
| July 20, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.5 μg/m3 (23) | 23.0 | |
| July 20, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.5 μg/m3 (23) | 23.0 | |
| July 20, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.3 μg/m3 (22) | 22.0 | |
| July 20, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.2 μg/m3 (22) | 22.0 | |
| July 20, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.1 μg/m3 (21) | 21.0 | |
| July 20, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.1 μg/m3 (21) | 21.0 | |
| July 20, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.1 μg/m3 (21) | 21.0 | |
| July 20, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.8 μg/m3 (24) | 24.0 | |
| July 20, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.3 μg/m3 (26) | 26.0 | |
| July 20, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.9 μg/m3 (25) | 25.0 | |
| July 20, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.6 μg/m3 (23) | 23.0 | |
| July 19, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.9 μg/m3 (25) | 25.0 | |
| July 19, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.1 μg/m3 (25) | 25.0 | |
| July 19, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.8 μg/m3 (28) | 28.0 | |
| July 19, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.7 μg/m3 (28) | 28.0 | |
| July 19, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.6 μg/m3 (28) | 28.0 | |
| July 19, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.7 μg/m3 (28) | 28.0 | |
| July 19, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.6 μg/m3 (28) | 28.0 | |
| July 19, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.4 μg/m3 (27) | 27.0 | |
| July 19, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.3 μg/m3 (26) | 26.0 | |
| July 19, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.6 μg/m3 (28) | 28.0 | |
| July 19, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.5 μg/m3 (27) | 27.0 | |
| July 19, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.8 μg/m3 (28) | 28.0 | |
| July 19, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.7 μg/m3 (28) | 28.0 | |
| July 19, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.3 μg/m3 (26) | 26.0 | |
| July 19, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.4 μg/m3 (27) | 27.0 | |
| July 19, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.7 μg/m3 (24) | 24.0 | |
| July 19, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.1 μg/m3 (25) | 25.0 | |
| July 19, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.7 μg/m3 (28) | 28.0 | |
| July 19, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.8 μg/m3 (28) | 28.0 | |
| July 19, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.9 μg/m3 (29) | 29.0 | |
| July 19, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.6 μg/m3 (28) | 28.0 | |
| July 19, 2019, 2 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 | |
| July 19, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.9 μg/m3 (29) | 29.0 | |
| July 19, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.4 μg/m3 (27) | 27.0 | |
| July 18, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.8 μg/m3 (24) | 24.0 | |
| July 18, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.3 μg/m3 (22) | 22.0 | |
| July 18, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.6 μg/m3 (23) | 23.0 | |
| July 18, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.9 μg/m3 (25) | 25.0 | |
| July 18, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.7 μg/m3 (24) | 24.0 | |
| July 18, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.9 μg/m3 (25) | 25.0 | |
| July 18, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.3 μg/m3 (22) | 22.0 | |
| July 18, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.6 μg/m3 (23) | 23.0 | |
| July 18, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.8 μg/m3 (24) | 24.0 | |
| July 18, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.5 μg/m3 (23) | 23.0 | |
| July 18, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.1 μg/m3 (21) | 21.0 | |
| July 18, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.4 μg/m3 (23) | 23.0 | |
| July 18, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.2 μg/m3 (22) | 22.0 | |
| July 18, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.8 μg/m3 (20) | 20.0 | |
| July 18, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.8 μg/m3 (20) | 20.0 | |
| July 18, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.6 μg/m3 (19) | 19.0 | |
| July 18, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.4 μg/m3 (18) | 18.0 | |
| July 18, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.1 μg/m3 (17) | 17.0 | |
| July 18, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.7 μg/m3 (15) | 15.0 | |
| July 18, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.8 μg/m3 (16) | 16.0 | |
| July 18, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.1 μg/m3 (21) | 21.0 | |
| July 18, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.9 μg/m3 (16) | 16.0 | |
| July 18, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.9 μg/m3 (16) | 16.0 | |
| July 18, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.8 μg/m3 (16) | 16.0 | |
| July 17, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.9 μg/m3 (16) | 16.0 | |
| July 17, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.6 μg/m3 (19) | 19.0 | |
| July 17, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.5 μg/m3 (19) | 19.0 | |
| July 17, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.6 μg/m3 (19) | 19.0 | |
| July 17, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.7 μg/m3 (20) | 20.0 | |
| July 17, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.8 μg/m3 (20) | 20.0 | |
| July 17, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.6 μg/m3 (19) | 19.0 | |
| July 17, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.2 μg/m3 (22) | 22.0 | |
| July 17, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.9 μg/m3 (20) | 20.0 | |
| July 17, 2019, 2 p.m. | 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 | |
| July 17, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.8 μg/m3 (20) | 20.0 | |
| July 17, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.5 μg/m3 (19) | 19.0 | |
| July 17, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.4 μg/m3 (18) | 18.0 | |
| July 17, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.3 μg/m3 (18) | 18.0 | |
| July 17, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.3 μg/m3 (18) | 18.0 | |
| July 17, 2019, 8 a.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 | |
| July 17, 2019, 7 a.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 | |
| July 17, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.3 μg/m3 (18) | 18.0 | |
| July 17, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.7 μg/m3 (24) | 24.0 | |
| July 17, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.6 μg/m3 (23) | 23.0 | |
| July 17, 2019, 3 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 | |
| July 17, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.9 μg/m3 (25) | 25.0 | |
| July 17, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.9 μg/m3 (25) | 25.0 | |
| July 17, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.7 μg/m3 (24) | 24.0 |