Courtenay (Grieve Ave) CC, CA: 49.682499, -124.996101
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| July 28, 2021, 6 p.m. | N/A | 2.4 ppb (3) | N/A | N/A | N/A | N/A | 25.0 ppb (24) | N/A | N/A | 4.0 μg/m3 (17) | 24.0 | |
| July 28, 2021, 5 p.m. | N/A | 2.1 ppb (2) | N/A | N/A | N/A | N/A | 22.0 ppb (21) | N/A | N/A | 4.0 μg/m3 (17) | 21.0 | |
| July 28, 2021, 4 p.m. | N/A | 2.4 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 18.0 ppb (17) | N/A | N/A | 1.0 μg/m3 (5) | 17.0 | |
| July 28, 2021, 3 p.m. | N/A | 2.6 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | 15.0 ppb (14) | N/A | N/A | 3.0 μg/m3 (13) | 14.0 | |
| July 28, 2021, 2 p.m. | N/A | 3.7 ppb (4) | N/A | 1.0 ppb (1) | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| July 28, 2021, 1 p.m. | N/A | 2.7 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| July 28, 2021, noon | N/A | 2.8 ppb (3) | N/A | 1.0 ppb (1) | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| July 28, 2021, 11 a.m. | N/A | 2.4 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| July 28, 2021, 10 a.m. | N/A | 2.2 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 8.0 ppb (8) | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| July 28, 2021, 9 a.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 28, 2021, 8 a.m. | N/A | 2.2 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| July 28, 2021, 7 a.m. | N/A | 2.4 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | 11.0 ppb (11) | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| July 28, 2021, 6 a.m. | N/A | 2.2 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | 12.0 ppb (12) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| July 28, 2021, 5 a.m. | N/A | 2.2 ppb (3) | N/A | 1.0 ppb (1) | N/A | N/A | 14.0 ppb (13) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| July 28, 2021, 4 a.m. | N/A | 2.3 ppb (3) | N/A | 5.0 ppb (5) | N/A | N/A | 12.0 ppb (12) | N/A | N/A | 7.0 μg/m3 (30) | 30.0 | |
| July 28, 2021, 3 a.m. | N/A | 2.3 ppb (3) | N/A | 2.0 ppb (2) | N/A | N/A | 18.0 ppb (17) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| July 28, 2021, 2 a.m. | N/A | 2.5 ppb (3) | N/A | 1.0 ppb (1) | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 4.0 μg/m3 (17) | 20.0 | |
| July 28, 2021, 1 a.m. | N/A | 2.5 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| July 28, 2021, midnight | N/A | 2.4 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| July 27, 2021, 11 p.m. | N/A | 2.6 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| July 27, 2021, 10 p.m. | N/A | 2.5 ppb (3) | N/A | N/A | N/A | N/A | 22.0 ppb (21) | N/A | N/A | 4.0 μg/m3 (17) | 21.0 | |
| July 27, 2021, 9 p.m. | N/A | 2.2 ppb (3) | N/A | N/A | N/A | N/A | 24.0 ppb (23) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| July 27, 2021, 8 p.m. | N/A | 2.5 ppb (3) | N/A | N/A | N/A | N/A | 23.0 ppb (22) | N/A | N/A | 5.0 μg/m3 (21) | 22.0 | |
| July 27, 2021, 7 p.m. | N/A | 2.6 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 24.0 ppb (23) | N/A | N/A | 3.0 μg/m3 (13) | 23.0 | |
| July 27, 2021, 6 p.m. | N/A | 2.6 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 20.0 ppb (19) | N/A | N/A | 2.0 μg/m3 (9) | 19.0 | |
| July 27, 2021, 5 p.m. | N/A | 2.1 ppb (2) | N/A | N/A | N/A | N/A | 16.0 ppb (15) | N/A | N/A | 1.0 μg/m3 (5) | 15.0 | |
| July 27, 2021, 4 p.m. | N/A | 2.2 ppb (3) | N/A | N/A | N/A | N/A | 12.0 ppb (12) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| July 27, 2021, 3 p.m. | N/A | 2.4 ppb (3) | N/A | N/A | N/A | N/A | 11.0 ppb (11) | N/A | N/A | 7.0 μg/m3 (30) | 30.0 | |
| July 27, 2021, 2 p.m. | N/A | 2.2 ppb (3) | N/A | N/A | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| July 27, 2021, 1 p.m. | N/A | 2.8 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| July 27, 2021, noon | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 0.0 μg/m3 (0) | 4.0 | |
| July 27, 2021, 11 a.m. | N/A | 2.2 ppb (3) | N/A | N/A | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| July 27, 2021, 10 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 | |
| July 27, 2021, 9 a.m. | N/A | 2.1 ppb (2) | N/A | N/A | N/A | N/A | 11.0 ppb (11) | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| July 27, 2021, 8 a.m. | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | 12.0 ppb (12) | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| July 27, 2021, 7 a.m. | N/A | 2.1 ppb (2) | N/A | N/A | N/A | N/A | 12.0 ppb (12) | N/A | N/A | 2.0 μg/m3 (9) | 12.0 | |
| July 27, 2021, 6 a.m. | N/A | 2.3 ppb (3) | N/A | N/A | N/A | N/A | 12.0 ppb (12) | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| July 27, 2021, 5 a.m. | N/A | 2.2 ppb (3) | N/A | N/A | N/A | N/A | 11.0 ppb (11) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| July 27, 2021, 4 a.m. | N/A | 2.2 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 13.0 ppb (13) | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| July 27, 2021, 3 a.m. | N/A | 2.4 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 17.0 ppb (16) | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| July 27, 2021, 2 a.m. | N/A | 2.5 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | 22.0 ppb (21) | N/A | N/A | 4.0 μg/m3 (17) | 21.0 | |
| July 27, 2021, 1 a.m. | N/A | 2.3 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 24.0 ppb (23) | N/A | N/A | 4.0 μg/m3 (17) | 23.0 | |
| July 27, 2021, midnight | N/A | 2.3 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 25.0 ppb (24) | N/A | N/A | 5.0 μg/m3 (21) | 24.0 | |
| July 26, 2021, 11 p.m. | N/A | 2.6 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 25.0 ppb (24) | N/A | N/A | 7.0 μg/m3 (30) | 30.0 | |
| July 26, 2021, 10 p.m. | N/A | 2.6 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| July 26, 2021, 9 p.m. | N/A | 2.8 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 22.0 ppb (21) | N/A | N/A | 3.0 μg/m3 (13) | 21.0 | |
| July 26, 2021, 8 p.m. | N/A | 2.7 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 22.0 ppb (21) | N/A | N/A | 4.0 μg/m3 (17) | 21.0 | |
| July 26, 2021, 7 p.m. | N/A | 2.7 ppb (3) | N/A | N/A | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 3.0 μg/m3 (13) | 20.0 | |
| July 26, 2021, 6 p.m. | N/A | 2.8 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 18.0 ppb (17) | N/A | N/A | 3.0 μg/m3 (13) | 17.0 | |
| July 26, 2021, 5 p.m. | N/A | 2.9 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 17.0 ppb (16) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| July 26, 2021, 4 p.m. | N/A | 3.3 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | 15.0 ppb (14) | N/A | N/A | 7.0 μg/m3 (30) | 30.0 | |
| July 26, 2021, 3 p.m. | N/A | 2.7 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 11.0 ppb (11) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| July 26, 2021, 2 p.m. | N/A | 5.4 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| July 26, 2021, 1 p.m. | N/A | 3.4 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 7.0 μg/m3 (30) | 30.0 | |
| July 26, 2021, noon | N/A | 3.2 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| July 26, 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 | |
| July 26, 2021, 10 a.m. | N/A | 2.4 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| July 26, 2021, 9 a.m. | N/A | 2.5 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 8.0 μg/m3 (34) | 34.0 | |
| July 26, 2021, 8 a.m. | N/A | 2.6 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| July 26, 2021, 7 a.m. | N/A | 2.4 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 7.0 μg/m3 (30) | 30.0 | |
| July 26, 2021, 6 a.m. | N/A | 2.4 ppb (3) | N/A | 1.0 ppb (1) | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 7.0 μg/m3 (30) | 30.0 | |
| July 26, 2021, 5 a.m. | N/A | 2.2 ppb (3) | N/A | 1.0 ppb (1) | N/A | N/A | 8.0 ppb (8) | N/A | N/A | 8.0 μg/m3 (34) | 34.0 | |
| July 26, 2021, 4 a.m. | N/A | 2.3 ppb (3) | N/A | 2.0 ppb (2) | N/A | N/A | 12.0 ppb (12) | N/A | N/A | 8.0 μg/m3 (34) | 34.0 | |
| July 26, 2021, 3 a.m. | N/A | 2.3 ppb (3) | N/A | 1.0 ppb (1) | N/A | N/A | 15.0 ppb (14) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| July 26, 2021, 2 a.m. | N/A | 2.4 ppb (3) | N/A | 1.0 ppb (1) | N/A | N/A | 18.0 ppb (17) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| July 26, 2021, 1 a.m. | N/A | 2.7 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | 20.0 ppb (19) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| July 26, 2021, midnight | N/A | 2.6 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 19.0 ppb (18) | N/A | N/A | 8.0 μg/m3 (34) | 34.0 | |
| July 25, 2021, 11 p.m. | N/A | 2.3 ppb (3) | N/A | N/A | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| July 25, 2021, 10 p.m. | N/A | 2.1 ppb (2) | N/A | N/A | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 7.0 μg/m3 (30) | 30.0 | |
| July 25, 2021, 9 p.m. | N/A | 2.3 ppb (3) | N/A | N/A | N/A | N/A | 20.0 ppb (19) | N/A | N/A | 1.0 μg/m3 (5) | 19.0 | |
| July 25, 2021, 8 p.m. | N/A | 2.5 ppb (3) | N/A | N/A | N/A | N/A | 19.0 ppb (18) | N/A | N/A | 3.0 μg/m3 (13) | 18.0 | |
| July 25, 2021, 7 p.m. | N/A | 2.2 ppb (3) | N/A | N/A | N/A | N/A | 19.0 ppb (18) | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| July 25, 2021, 6 p.m. | N/A | 2.7 ppb (3) | N/A | N/A | N/A | N/A | 18.0 ppb (17) | N/A | N/A | 3.0 μg/m3 (13) | 17.0 | |
| July 25, 2021, 5 p.m. | N/A | 2.3 ppb (3) | N/A | N/A | N/A | N/A | 14.0 ppb (13) | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| July 25, 2021, 4 p.m. | N/A | 2.3 ppb (3) | N/A | N/A | N/A | N/A | 12.0 ppb (12) | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| July 25, 2021, 3 p.m. | N/A | 2.4 ppb (3) | N/A | N/A | N/A | N/A | 10.0 ppb (10) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| July 25, 2021, 2 p.m. | N/A | 2.4 ppb (3) | N/A | N/A | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| July 25, 2021, 1 p.m. | N/A | 2.4 ppb (3) | N/A | N/A | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| July 25, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (30) | 30.0 | |
| July 25, 2021, 11 a.m. | N/A | 2.5 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| July 25, 2021, 10 a.m. | N/A | 2.6 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| July 25, 2021, 9 a.m. | N/A | 2.5 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| July 25, 2021, 8 a.m. | N/A | 2.6 ppb (3) | N/A | 1.0 ppb (1) | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| July 25, 2021, 7 a.m. | N/A | 2.8 ppb (3) | N/A | 1.0 ppb (1) | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| July 25, 2021, 6 a.m. | N/A | 2.5 ppb (3) | N/A | 1.0 ppb (1) | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| July 25, 2021, 5 a.m. | N/A | 2.7 ppb (3) | N/A | 2.0 ppb (2) | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 1.0 μg/m3 (5) | 7.0 | |
| July 25, 2021, 4 a.m. | N/A | 2.3 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 12.0 ppb (12) | N/A | N/A | 0.0 μg/m3 (0) | 12.0 | |
| July 25, 2021, 3 a.m. | N/A | 2.3 ppb (3) | N/A | N/A | N/A | N/A | 15.0 ppb (14) | N/A | N/A | 0.0 μg/m3 (0) | 14.0 | |
| July 25, 2021, 2 a.m. | N/A | 2.4 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 16.0 ppb (15) | N/A | N/A | 1.0 μg/m3 (5) | 15.0 | |
| July 25, 2021, 1 a.m. | N/A | 2.4 ppb (3) | N/A | N/A | N/A | N/A | 18.0 ppb (17) | N/A | N/A | 3.0 μg/m3 (13) | 17.0 | |
| July 25, 2021, midnight | N/A | 2.2 ppb (3) | N/A | N/A | N/A | N/A | 19.0 ppb (18) | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| July 24, 2021, 11 p.m. | N/A | 2.3 ppb (3) | N/A | N/A | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 2.0 μg/m3 (9) | 20.0 | |
| July 24, 2021, 10 p.m. | N/A | 2.4 ppb (3) | N/A | N/A | N/A | N/A | 20.0 ppb (19) | N/A | N/A | 0.0 μg/m3 (0) | 19.0 | |
| July 24, 2021, 9 p.m. | N/A | 2.4 ppb (3) | N/A | N/A | N/A | N/A | 22.0 ppb (21) | N/A | N/A | 3.0 μg/m3 (13) | 21.0 | |
| July 24, 2021, 8 p.m. | N/A | 2.4 ppb (3) | N/A | N/A | N/A | N/A | 23.0 ppb (22) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| July 24, 2021, 7 p.m. | N/A | 2.4 ppb (3) | N/A | N/A | N/A | N/A | 23.0 ppb (22) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| July 24, 2021, 6 p.m. | N/A | 2.5 ppb (3) | N/A | N/A | N/A | N/A | 22.0 ppb (21) | N/A | N/A | 2.0 μg/m3 (9) | 21.0 | |
| July 24, 2021, 5 p.m. | N/A | 2.5 ppb (3) | N/A | N/A | N/A | N/A | 20.0 ppb (19) | N/A | N/A | 2.0 μg/m3 (9) | 19.0 | |
| July 24, 2021, 4 p.m. | N/A | 2.2 ppb (3) | N/A | N/A | N/A | N/A | 14.0 ppb (13) | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| July 24, 2021, 3 p.m. | N/A | 2.5 ppb (3) | N/A | N/A | N/A | N/A | 10.0 ppb (10) | N/A | N/A | 2.0 μg/m3 (9) | 10.0 | |
| July 24, 2021, 2 p.m. | N/A | 2.5 ppb (3) | N/A | N/A | N/A | N/A | 8.0 ppb (8) | N/A | N/A | 1.0 μg/m3 (5) | 8.0 | |
| July 24, 2021, 1 p.m. | 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 | |
| July 24, 2021, noon | N/A | 2.6 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| July 24, 2021, 11 a.m. | N/A | 2.7 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| July 24, 2021, 10 a.m. | N/A | 2.4 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| July 24, 2021, 9 a.m. | N/A | 2.5 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | 10.0 ppb (10) | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| July 24, 2021, 8 a.m. | N/A | 2.1 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | 15.0 ppb (14) | N/A | N/A | 3.0 μg/m3 (13) | 14.0 | |
| July 24, 2021, 7 a.m. | N/A | 2.3 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 18.0 ppb (17) | N/A | N/A | 2.0 μg/m3 (9) | 17.0 | |
| July 24, 2021, 6 a.m. | N/A | 2.2 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 19.0 ppb (18) | N/A | N/A | 2.0 μg/m3 (9) | 18.0 | |
| July 24, 2021, 5 a.m. | N/A | 2.1 ppb (2) | N/A | -1.0 ppb (0) | N/A | N/A | 20.0 ppb (19) | N/A | N/A | 4.0 μg/m3 (17) | 19.0 | |
| July 24, 2021, 4 a.m. | N/A | 2.1 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | 18.0 ppb (17) | N/A | N/A | 3.0 μg/m3 (13) | 17.0 | |
| July 24, 2021, 3 a.m. | N/A | 2.2 ppb (3) | N/A | 1.0 ppb (1) | N/A | N/A | 19.0 ppb (18) | N/A | N/A | 1.0 μg/m3 (5) | 18.0 | |
| July 24, 2021, 2 a.m. | N/A | 2.4 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | 24.0 ppb (23) | N/A | N/A | 5.0 μg/m3 (21) | 23.0 | |
| July 24, 2021, 1 a.m. | N/A | 2.4 ppb (3) | N/A | N/A | N/A | N/A | 26.0 ppb (25) | N/A | N/A | 3.0 μg/m3 (13) | 25.0 | |
| July 24, 2021, midnight | N/A | 2.2 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 28.0 ppb (26) | N/A | N/A | 1.0 μg/m3 (5) | 26.0 | |
| July 23, 2021, 11 p.m. | N/A | 2.7 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | 28.0 ppb (26) | N/A | N/A | 3.0 μg/m3 (13) | 26.0 | |
| July 23, 2021, 10 p.m. | N/A | 2.6 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 27.0 ppb (25) | N/A | N/A | 4.0 μg/m3 (17) | 25.0 | |
| July 23, 2021, 9 p.m. | N/A | 2.3 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 26.0 ppb (25) | N/A | N/A | 4.0 μg/m3 (17) | 25.0 | |
| July 23, 2021, 8 p.m. | N/A | 2.9 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | 24.0 ppb (23) | N/A | N/A | 2.0 μg/m3 (9) | 23.0 | |
| July 23, 2021, 7 p.m. | N/A | 3.1 ppb (3) | N/A | -1.0 ppb (0) | N/A | N/A | 23.0 ppb (22) | N/A | N/A | 2.0 μg/m3 (9) | 22.0 | |
| July 23, 2021, 6 p.m. | N/A | 2.6 ppb (3) | N/A | N/A | N/A | N/A | 23.0 ppb (22) | N/A | N/A | 2.0 μg/m3 (9) | 22.0 | |
| July 23, 2021, 5 p.m. | N/A | 2.3 ppb (3) | N/A | N/A | N/A | N/A | 22.0 ppb (21) | N/A | N/A | 3.0 μg/m3 (13) | 21.0 | |
| July 23, 2021, 4 p.m. | N/A | 2.4 ppb (3) | N/A | N/A | N/A | N/A | 19.0 ppb (18) | N/A | N/A | 4.0 μg/m3 (17) | 18.0 | |
| July 23, 2021, 3 p.m. | N/A | 2.2 ppb (3) | N/A | N/A | N/A | N/A | 17.0 ppb (16) | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| July 23, 2021, 2 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 | |
| July 23, 2021, 1 p.m. | N/A | 2.3 ppb (3) | N/A | N/A | N/A | N/A | 18.0 ppb (17) | N/A | N/A | 3.0 μg/m3 (13) | 17.0 | |
| July 23, 2021, noon | N/A | 2.2 ppb (3) | N/A | N/A | N/A | N/A | 19.0 ppb (18) | N/A | N/A | 2.0 μg/m3 (9) | 18.0 | |
| July 23, 2021, 11 a.m. | N/A | 2.2 ppb (3) | N/A | N/A | N/A | N/A | 19.0 ppb (18) | N/A | N/A | 0.0 μg/m3 (0) | 18.0 | |
| July 23, 2021, 10 a.m. | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | 17.0 ppb (16) | N/A | N/A | 0.0 μg/m3 (0) | 16.0 | |
| July 23, 2021, 9 a.m. | N/A | 2.2 ppb (3) | N/A | N/A | N/A | N/A | 19.0 ppb (18) | N/A | N/A | 4.0 μg/m3 (17) | 18.0 | |
| July 23, 2021, 8 a.m. | N/A | 2.4 ppb (3) | N/A | N/A | N/A | N/A | 18.0 ppb (17) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| July 23, 2021, 7 a.m. | N/A | 2.3 ppb (3) | N/A | N/A | N/A | N/A | 19.0 ppb (18) | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| July 23, 2021, 6 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 23, 2021, 5 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 | |
| July 23, 2021, 4 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 23, 2021, 3 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 23, 2021, 2 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 | |
| July 23, 2021, 1 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 23, 2021, midnight | 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 22, 2021, 11 p.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 | |
| July 22, 2021, 10 p.m. | 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 | |
| July 22, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 0.0 | |
| July 22, 2021, 8 p.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 | |
| July 22, 2021, 7 p.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 | |
| July 22, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
| July 22, 2021, 5 p.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 | |
| July 22, 2021, 4 p.m. | 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 | |
| July 22, 2021, 3 p.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 | |
| July 22, 2021, 2 p.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 | |
| July 22, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
| July 22, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 0.0 | |
| July 22, 2021, 11 a.m. | 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 | |
| July 22, 2021, 10 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 | |
| July 22, 2021, 9 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 | |
| July 22, 2021, 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 22, 2021, 7 a.m. | 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 | |
| July 22, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 0.0 | |
| July 22, 2021, 5 a.m. | 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 | |
| July 22, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
| July 22, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 0.0 | |
| July 22, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 0.0 | |
| July 22, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 0.0 | |
| July 22, 2021, midnight | 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 | |
| July 21, 2021, 11 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 21, 2021, 10 p.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 | |
| July 21, 2021, 9 p.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 | |
| July 21, 2021, 8 p.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 | |
| July 21, 2021, 7 p.m. | 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 |