San Luis Obispo (S Higuera St) CA, US: 35.25651, -120.6693
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 14, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | N/A | N/A | 39.0 | |
| Jan. 14, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | |
| Jan. 13, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.1 μg/m3 (10) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 13, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.4 μg/m3 (8) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 13, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.7 μg/m3 (8) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 13, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.4 μg/m3 (5) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 13, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.7 μg/m3 (18) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 13, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.1 μg/m3 (14) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 13, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 29.6 μg/m3 (28) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 13, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 37.9 μg/m3 (36) | 8.0 μg/m3 (34) | 36.0 | |
| Jan. 13, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.8 μg/m3 (20) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 13, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 19.4 μg/m3 (18) | 8.0 μg/m3 (34) | 34.0 | |
| Jan. 13, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.4 μg/m3 (18) | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 13, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 μg/m3 (22) | 12.0 μg/m3 (50) | 50.0 | |
| Jan. 13, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 μg/m3 (21) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 13, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 29.4 μg/m3 (28) | 8.0 μg/m3 (34) | 34.0 | |
| Jan. 13, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.5 μg/m3 (18) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 13, 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) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 13, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.6 μg/m3 (17) | 7.0 μg/m3 (30) | 30.0 | |
| Jan. 13, 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) | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 13, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 19.2 μg/m3 (18) | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 13, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.4 μg/m3 (12) | 8.0 μg/m3 (34) | 34.0 | |
| Jan. 13, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.2 μg/m3 (15) | 12.0 μg/m3 (50) | 50.0 | |
| Jan. 13, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.1 μg/m3 (17) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 13, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.1 μg/m3 (11) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 13, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.6 μg/m3 (13) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 12, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.5 μg/m3 (10) | 3.0 μg/m3 (13) | 13.0 | |
| Jan. 12, 2021, 10 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. 12, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.2 μg/m3 (12) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 12, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 μg/m3 (13) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 12, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 μg/m3 (10) | 3.0 μg/m3 (13) | 13.0 | |
| Jan. 12, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.6 μg/m3 (2) | 1.0 μg/m3 (5) | 5.0 | |
| Jan. 12, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.2 μg/m3 (4) | 1.0 μg/m3 (5) | 5.0 | |
| Jan. 12, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.3 μg/m3 (6) | 3.0 μg/m3 (13) | 13.0 | |
| Jan. 12, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.1 μg/m3 (5) | -1.0 μg/m3 (0) | 5.0 | |
| Jan. 12, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.7 μg/m3 (3) | 0.0 μg/m3 (0) | 3.0 | |
| Jan. 12, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.6 μg/m3 (3) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 12, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.5 μg/m3 (4) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 12, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (3) | 1.0 μg/m3 (5) | 5.0 | |
| Jan. 12, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.7 μg/m3 (2) | 2.0 μg/m3 (9) | 9.0 | |
| Jan. 12, 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) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 12, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.1 μg/m3 (3) | 8.0 μg/m3 (34) | 34.0 | |
| Jan. 12, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.2 μg/m3 (5) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 12, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.8 μg/m3 (7) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 12, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.3 μg/m3 (6) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 12, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.6 μg/m3 (9) | 8.0 μg/m3 (34) | 34.0 | |
| Jan. 12, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.5 μg/m3 (11) | 2.0 μg/m3 (9) | 11.0 | |
| Jan. 12, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.5 μg/m3 (7) | 2.0 μg/m3 (9) | 9.0 | |
| Jan. 12, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 μg/m3 (10) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 12, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 22.9 μg/m3 (22) | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 11, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.9 μg/m3 (16) | 8.0 μg/m3 (34) | 34.0 | |
| Jan. 11, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.1 μg/m3 (15) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 11, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 22.9 μg/m3 (22) | 7.0 μg/m3 (30) | 30.0 | |
| Jan. 11, 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) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 11, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 26.4 μg/m3 (25) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 11, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.2 μg/m3 (13) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 11, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 32.9 μg/m3 (31) | 5.0 μg/m3 (21) | 31.0 | |
| Jan. 11, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 37.3 μg/m3 (35) | 6.0 μg/m3 (25) | 35.0 | |
| Jan. 11, 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) | 2.0 μg/m3 (9) | 9.0 | |
| Jan. 11, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.7 μg/m3 (9) | 3.0 μg/m3 (13) | 13.0 | |
| Jan. 11, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 μg/m3 (12) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 11, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.9 μg/m3 (8) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 11, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.6 μg/m3 (13) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 11, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.5 μg/m3 (9) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 11, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.9 μg/m3 (15) | 8.0 μg/m3 (34) | 34.0 | |
| Jan. 11, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.7 μg/m3 (15) | 8.0 μg/m3 (34) | 34.0 | |
| Jan. 11, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 19.9 μg/m3 (19) | 8.0 μg/m3 (34) | 34.0 | |
| Jan. 11, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.2 μg/m3 (17) | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 11, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.5 μg/m3 (10) | 7.0 μg/m3 (30) | 30.0 | |
| Jan. 11, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | |
| Jan. 11, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.9 μg/m3 (13) | 3.0 μg/m3 (13) | 13.0 | |
| Jan. 11, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.2 μg/m3 (19) | 7.0 μg/m3 (30) | 30.0 | |
| Jan. 11, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 22.7 μg/m3 (22) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 11, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.3 μg/m3 (22) | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 10, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.3 μg/m3 (15) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 10, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.1 μg/m3 (13) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 10, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 μg/m3 (13) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 10, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.6 μg/m3 (17) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 10, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.6 μg/m3 (3) | 3.0 μg/m3 (13) | 13.0 | |
| Jan. 10, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.6 μg/m3 (5) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 10, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.7 μg/m3 (7) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 10, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.3 μg/m3 (7) | 3.0 μg/m3 (13) | 13.0 | |
| Jan. 10, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 μg/m3 (12) | 2.0 μg/m3 (9) | 12.0 | |
| Jan. 10, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (6) | 3.0 μg/m3 (13) | 13.0 | |
| Jan. 10, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (4) | 2.0 μg/m3 (9) | 9.0 | |
| Jan. 10, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.1 μg/m3 (7) | 3.0 μg/m3 (13) | 13.0 | |
| Jan. 10, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.5 μg/m3 (8) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 10, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.4 μg/m3 (8) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 10, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.4 μg/m3 (11) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 10, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.5 μg/m3 (14) | 3.0 μg/m3 (13) | 14.0 | |
| Jan. 10, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.7 μg/m3 (5) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 10, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.3 μg/m3 (7) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 10, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (6) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 10, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.9 μg/m3 (7) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 10, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.3 μg/m3 (7) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 10, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (7) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 10, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.1 μg/m3 (8) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 10, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.1 μg/m3 (9) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 9, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.8 μg/m3 (9) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 9, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.2 μg/m3 (7) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 9, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.1 μg/m3 (7) | 2.0 μg/m3 (9) | 9.0 | |
| Jan. 9, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.7 μg/m3 (9) | 2.0 μg/m3 (9) | 9.0 | |
| Jan. 9, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.6 μg/m3 (6) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 9, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.9 μg/m3 (6) | 1.0 μg/m3 (5) | 6.0 | |
| Jan. 9, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.5 μg/m3 (5) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 9, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.6 μg/m3 (7) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 9, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.5 μg/m3 (6) | 3.0 μg/m3 (13) | 13.0 | |
| Jan. 9, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.9 μg/m3 (2) | 1.0 μg/m3 (5) | 5.0 | |
| Jan. 9, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.4 μg/m3 (4) | 0.0 μg/m3 (0) | 4.0 | |
| Jan. 9, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.9 μg/m3 (3) | 2.0 μg/m3 (9) | 9.0 | |
| Jan. 9, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.5 μg/m3 (5) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 9, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.9 μg/m3 (6) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 9, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.2 μg/m3 (8) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 9, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.9 μg/m3 (12) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 9, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.4 μg/m3 (15) | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 9, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.4 μg/m3 (19) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 9, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.6 μg/m3 (16) | 8.0 μg/m3 (34) | 34.0 | |
| Jan. 9, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.6 μg/m3 (17) | 7.0 μg/m3 (30) | 30.0 | |
| Jan. 9, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.4 μg/m3 (16) | 3.0 μg/m3 (13) | 16.0 | |
| Jan. 9, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 19.1 μg/m3 (18) | 3.0 μg/m3 (13) | 18.0 | |
| Jan. 9, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.4 μg/m3 (15) | 2.0 μg/m3 (9) | 15.0 | |
| Jan. 9, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.5 μg/m3 (12) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 8, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.7 μg/m3 (13) | 7.0 μg/m3 (30) | 30.0 | |
| Jan. 8, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 μg/m3 (12) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 8, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.6 μg/m3 (13) | 7.0 μg/m3 (30) | 30.0 | |
| Jan. 8, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.2 μg/m3 (11) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 8, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.8 μg/m3 (5) | 3.0 μg/m3 (13) | 13.0 | |
| Jan. 8, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.6 μg/m3 (6) | 1.0 μg/m3 (5) | 6.0 | |
| Jan. 8, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.2 μg/m3 (7) | 2.0 μg/m3 (9) | 9.0 | |
| Jan. 8, 2021, 4 p.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 | |
| Jan. 8, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.4 μg/m3 (5) | 1.0 μg/m3 (5) | 5.0 | |
| Jan. 8, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 μg/m3 (16) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 8, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.1 μg/m3 (16) | 7.0 μg/m3 (30) | 30.0 | |
| Jan. 8, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.7 μg/m3 (22) | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 8, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 29.6 μg/m3 (28) | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 8, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.1 μg/m3 (22) | 8.0 μg/m3 (34) | 34.0 | |
| Jan. 8, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.2 μg/m3 (15) | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 8, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.1 μg/m3 (14) | 7.0 μg/m3 (30) | 30.0 | |
| Jan. 8, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.3 μg/m3 (14) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 8, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 μg/m3 (16) | 8.0 μg/m3 (34) | 34.0 | |
| Jan. 8, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.2 μg/m3 (19) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 8, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.9 μg/m3 (12) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 8, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.2 μg/m3 (11) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 8, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.2 μg/m3 (12) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 8, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.5 μg/m3 (20) | 8.0 μg/m3 (34) | 34.0 | |
| Jan. 8, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.7 μg/m3 (10) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 7, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.3 μg/m3 (11) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 7, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.7 μg/m3 (9) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 7, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.4 μg/m3 (6) | 1.0 μg/m3 (5) | 6.0 | |
| Jan. 7, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.4 μg/m3 (9) | 3.0 μg/m3 (13) | 13.0 | |
| Jan. 7, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.2 μg/m3 (8) | -1.0 μg/m3 (0) | 8.0 | |
| Jan. 7, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.4 μg/m3 (8) | 0.0 μg/m3 (0) | 8.0 | |
| Jan. 7, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.3 μg/m3 (6) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 7, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.3 μg/m3 (17) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 7, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.6 μg/m3 (8) | 3.0 μg/m3 (13) | 13.0 | |
| Jan. 7, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.2 μg/m3 (5) | 3.0 μg/m3 (13) | 13.0 | |
| Jan. 7, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.9 μg/m3 (4) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 7, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.3 μg/m3 (6) | 7.0 μg/m3 (30) | 30.0 | |
| Jan. 7, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.9 μg/m3 (6) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 7, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.8 μg/m3 (10) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 7, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (30) | N/A | 15.8 μg/m3 (15) | 6.0 μg/m3 (25) | 30.0 | |
| Jan. 7, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | N/A | 13.8 μg/m3 (13) | 3.0 μg/m3 (13) | 28.0 | |
| Jan. 7, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | N/A | 18.3 μg/m3 (17) | 2.0 μg/m3 (9) | 28.0 | |
| Jan. 7, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (30) | N/A | 11.7 μg/m3 (11) | 5.0 μg/m3 (21) | 30.0 | |
| Jan. 7, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (22) | N/A | 14.4 μg/m3 (14) | 8.0 μg/m3 (34) | 34.0 | |
| Jan. 7, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (22) | N/A | 21.2 μg/m3 (20) | 8.0 μg/m3 (34) | 34.0 | |
| Jan. 7, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (30) | N/A | 18.9 μg/m3 (18) | 6.0 μg/m3 (25) | 30.0 | |
| Jan. 7, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (31) | N/A | 15.0 μg/m3 (14) | 4.0 μg/m3 (17) | 31.0 |