Green Bay (Olde N) WI, US: 44.5167, -87.9939
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 26, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 17.8 μg/m3 (63) | 63.0 | |
| Feb. 26, 2021, noon | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 18.5 μg/m3 (65) | 65.0 | |
| Feb. 26, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 17.8 μg/m3 (63) | 63.0 | |
| Feb. 26, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 16.8 μg/m3 (61) | 61.0 | |
| Feb. 26, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 14.1 μg/m3 (56) | 56.0 | |
| Feb. 26, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.3 μg/m3 (52) | 52.0 | |
| Feb. 26, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Feb. 26, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 11.4 μg/m3 (48) | 48.0 | |
| Feb. 26, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 11.6 μg/m3 (49) | 49.0 | |
| Feb. 26, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 10.8 μg/m3 (46) | 46.0 | |
| Feb. 26, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 10.3 μg/m3 (43) | 43.0 | |
| Feb. 26, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 8.8 μg/m3 (37) | 37.0 | |
| Feb. 26, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 8.9 μg/m3 (38) | 38.0 | |
| Feb. 26, 2021, midnight | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 7.4 μg/m3 (31) | 31.0 | |
| Feb. 25, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 6.7 μg/m3 (28) | 28.0 | |
| Feb. 25, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 6.4 μg/m3 (27) | 27.0 | |
| Feb. 25, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 6.2 μg/m3 (26) | 26.0 | |
| Feb. 25, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 6.2 μg/m3 (26) | 26.0 | |
| Feb. 25, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 6.8 μg/m3 (29) | 29.0 | |
| Feb. 25, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 7.2 μg/m3 (31) | 31.0 | |
| Feb. 25, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 8.0 μg/m3 (34) | 34.0 | |
| Feb. 25, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 8.3 μg/m3 (35) | 35.0 | |
| Feb. 25, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 8.0 μg/m3 (34) | 34.0 | |
| Feb. 25, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 7.8 μg/m3 (33) | 33.0 | |
| Feb. 25, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 7.2 μg/m3 (31) | 31.0 | |
| Feb. 25, 2021, noon | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 7.4 μg/m3 (31) | 31.0 | |
| Feb. 25, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 7.5 μg/m3 (32) | 32.0 | |
| Feb. 25, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 7.7 μg/m3 (33) | 33.0 | |
| Feb. 25, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 8.5 μg/m3 (36) | 36.0 | |
| Feb. 25, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.7 μg/m3 (37) | 37.0 | |
| Feb. 25, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 9.2 μg/m3 (39) | 39.0 | |
| Feb. 25, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 9.9 μg/m3 (42) | 42.0 | |
| Feb. 25, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Feb. 25, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 7.4 μg/m3 (31) | 31.0 | |
| Feb. 25, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 7.2 μg/m3 (31) | 31.0 | |
| Feb. 25, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 7.4 μg/m3 (31) | 31.0 | |
| Feb. 25, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 8.4 μg/m3 (36) | 36.0 | |
| Feb. 25, 2021, midnight | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 6.7 μg/m3 (28) | 28.0 | |
| Feb. 24, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 5.1 μg/m3 (22) | 22.0 | |
| Feb. 24, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| Feb. 24, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 3.2 μg/m3 (14) | 14.0 | |
| Feb. 24, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 3.7 μg/m3 (16) | 16.0 | |
| Feb. 24, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 3.5 μg/m3 (15) | 15.0 | |
| Feb. 24, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 2.8 μg/m3 (12) | 12.0 | |
| Feb. 24, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 2.7 μg/m3 (12) | 12.0 | |
| Feb. 24, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 1.9 μg/m3 (8) | 8.0 | |
| Feb. 24, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 3.1 μg/m3 (13) | 13.0 | |
| Feb. 24, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 5.2 μg/m3 (22) | 22.0 | |
| Feb. 24, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 3.7 μg/m3 (16) | 16.0 | |
| Feb. 24, 2021, noon | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 3.2 μg/m3 (14) | 14.0 | |
| Feb. 24, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 3.5 μg/m3 (15) | 15.0 | |
| Feb. 24, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 3.5 μg/m3 (15) | 15.0 | |
| Feb. 24, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 4.4 μg/m3 (19) | 19.0 | |
| Feb. 24, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.1 μg/m3 (22) | 22.0 | |
| Feb. 24, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Feb. 24, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 6.2 μg/m3 (26) | 26.0 | |
| Feb. 24, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 6.6 μg/m3 (28) | 28.0 | |
| Feb. 24, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 5.6 μg/m3 (24) | 24.0 | |
| Feb. 24, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 5.4 μg/m3 (23) | 23.0 | |
| Feb. 24, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| Feb. 24, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 5.6 μg/m3 (24) | 24.0 | |
| Feb. 24, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 6.7 μg/m3 (28) | 28.0 | |
| Feb. 23, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 6.8 μg/m3 (29) | 29.0 | |
| Feb. 23, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| Feb. 23, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 4.9 μg/m3 (21) | 21.0 | |
| Feb. 23, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 4.2 μg/m3 (18) | 18.0 | |
| Feb. 23, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 4.2 μg/m3 (18) | 18.0 | |
| Feb. 23, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 0.0 | |
| Feb. 23, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 0.0 | |
| Feb. 23, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 5.8 μg/m3 (25) | 25.0 | |
| Feb. 23, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 5.6 μg/m3 (24) | 24.0 | |
| Feb. 23, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 6.6 μg/m3 (28) | 28.0 | |
| Feb. 23, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 7.3 μg/m3 (31) | 31.0 | |
| Feb. 23, 2021, noon | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 7.4 μg/m3 (31) | 31.0 | |
| Feb. 23, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 7.3 μg/m3 (31) | 31.0 | |
| Feb. 23, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 7.0 μg/m3 (30) | 30.0 | |
| Feb. 23, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 7.5 μg/m3 (32) | 32.0 | |
| Feb. 23, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.2 μg/m3 (35) | 35.0 | |
| Feb. 23, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 8.7 μg/m3 (37) | 37.0 | |
| Feb. 23, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 8.8 μg/m3 (37) | 37.0 | |
| Feb. 23, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 11.4 μg/m3 (48) | 48.0 | |
| Feb. 23, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 14.6 μg/m3 (57) | 57.0 | |
| Feb. 23, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 17.4 μg/m3 (63) | 63.0 | |
| Feb. 23, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 19.7 μg/m3 (67) | 67.0 | |
| Feb. 23, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 20.2 μg/m3 (69) | 69.0 | |
| Feb. 23, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 18.1 μg/m3 (64) | 64.0 | |
| Feb. 22, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 18.3 μg/m3 (65) | 65.0 | |
| Feb. 22, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 18.8 μg/m3 (66) | 66.0 | |
| Feb. 22, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 18.0 μg/m3 (64) | 64.0 | |
| Feb. 22, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 19.0 μg/m3 (66) | 66.0 | |
| Feb. 22, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 20.4 μg/m3 (69) | 69.0 | |
| Feb. 22, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 20.3 μg/m3 (69) | 69.0 | |
| Feb. 22, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 18.1 μg/m3 (64) | 64.0 | |
| Feb. 22, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 28.0 μg/m3 (85) | 85.0 | |
| Feb. 22, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 29.4 μg/m3 (88) | 88.0 | |
| Feb. 22, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 23.0 μg/m3 (74) | 74.0 | |
| Feb. 22, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 17.6 μg/m3 (63) | 63.0 | |
| Feb. 22, 2021, noon | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 15.4 μg/m3 (58) | 58.0 | |
| Feb. 22, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 14.8 μg/m3 (57) | 57.0 | |
| Feb. 22, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 14.5 μg/m3 (57) | 57.0 | |
| Feb. 22, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 15.1 μg/m3 (58) | 58.0 | |
| Feb. 22, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.2 μg/m3 (56) | 56.0 | |
| Feb. 22, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 13.5 μg/m3 (54) | 54.0 | |
| Feb. 22, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 9.6 μg/m3 (40) | 40.0 | |
| Feb. 22, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 8.8 μg/m3 (37) | 37.0 | |
| Feb. 22, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 9.7 μg/m3 (41) | 41.0 | |
| Feb. 22, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 11.2 μg/m3 (47) | 47.0 | |
| Feb. 22, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 12.1 μg/m3 (51) | 51.0 | |
| Feb. 22, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 14.4 μg/m3 (56) | 56.0 | |
| Feb. 22, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 18.5 μg/m3 (65) | 65.0 | |
| Feb. 21, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 18.8 μg/m3 (66) | 66.0 | |
| Feb. 21, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 19.0 μg/m3 (66) | 66.0 | |
| Feb. 21, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 19.7 μg/m3 (67) | 67.0 | |
| Feb. 21, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 20.2 μg/m3 (69) | 69.0 | |
| Feb. 21, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 20.4 μg/m3 (69) | 69.0 | |
| Feb. 21, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 24.5 μg/m3 (78) | 78.0 | |
| Feb. 21, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 25.5 μg/m3 (80) | 80.0 | |
| Feb. 21, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 25.6 μg/m3 (80) | 80.0 | |
| Feb. 21, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 27.3 μg/m3 (83) | 83.0 | |
| Feb. 21, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 32.6 μg/m3 (95) | 95.0 | |
| Feb. 21, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 32.8 μg/m3 (95) | 95.0 | |
| Feb. 21, 2021, noon | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 38.5 μg/m3 (109) | 109.0 | |
| Feb. 21, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 39.6 μg/m3 (112) | 112.0 | |
| Feb. 21, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 34.3 μg/m3 (98) | 98.0 | |
| Feb. 21, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 30.8 μg/m3 (91) | 91.0 | |
| Feb. 21, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 29.3 μg/m3 (88) | 88.0 | |
| Feb. 21, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 32.7 μg/m3 (95) | 95.0 | |
| Feb. 21, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 34.8 μg/m3 (99) | 99.0 | |
| Feb. 21, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 37.3 μg/m3 (106) | 106.0 | |
| Feb. 21, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 41.4 μg/m3 (116) | 116.0 | |
| Feb. 21, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 42.7 μg/m3 (119) | 119.0 | |
| Feb. 21, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 43.2 μg/m3 (120) | 120.0 | |
| Feb. 21, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 40.2 μg/m3 (113) | 113.0 | |
| Feb. 21, 2021, midnight | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 37.5 μg/m3 (106) | 106.0 | |
| Feb. 20, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 35.6 μg/m3 (102) | 102.0 | |
| Feb. 20, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 33.9 μg/m3 (97) | 97.0 | |
| Feb. 20, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 33.6 μg/m3 (97) | 97.0 | |
| Feb. 20, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | N/A | 32.9 μg/m3 (95) | 95.0 | |
| Feb. 20, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 27.8 μg/m3 (85) | 85.0 | |
| Feb. 20, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 25.2 μg/m3 (79) | 79.0 | |
| Feb. 20, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 37.7 μg/m3 (107) | 107.0 | |
| Feb. 20, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 49.8 μg/m3 (137) | 137.0 | |
| Feb. 20, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 42.8 μg/m3 (119) | 119.0 | |
| Feb. 20, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 42.9 μg/m3 (120) | 120.0 | |
| Feb. 20, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 46.6 μg/m3 (129) | 129.0 | |
| Feb. 20, 2021, noon | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 45.0 μg/m3 (125) | 125.0 | |
| Feb. 20, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 45.3 μg/m3 (126) | 126.0 | |
| Feb. 20, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 45.5 μg/m3 (126) | 126.0 | |
| Feb. 20, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 47.1 μg/m3 (130) | 130.0 | |
| Feb. 20, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 46.9 μg/m3 (130) | 130.0 | |
| Feb. 20, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 46.5 μg/m3 (129) | 129.0 | |
| Feb. 20, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 45.0 μg/m3 (125) | 125.0 | |
| Feb. 20, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 44.0 μg/m3 (122) | 122.0 | |
| Feb. 20, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 42.7 μg/m3 (119) | 119.0 | |
| Feb. 20, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 42.9 μg/m3 (120) | 120.0 | |
| Feb. 20, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 40.7 μg/m3 (114) | 114.0 | |
| Feb. 20, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 38.0 μg/m3 (108) | 108.0 | |
| Feb. 20, 2021, midnight | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 32.1 μg/m3 (94) | 94.0 | |
| Feb. 19, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 27.6 μg/m3 (84) | 84.0 | |
| Feb. 19, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 21.2 μg/m3 (71) | 71.0 | |
| Feb. 19, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 17.2 μg/m3 (62) | 62.0 | |
| Feb. 19, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 16.1 μg/m3 (60) | 60.0 | |
| Feb. 19, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 15.6 μg/m3 (59) | 59.0 | |
| Feb. 19, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 15.0 μg/m3 (58) | 58.0 | |
| Feb. 19, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 17.1 μg/m3 (62) | 62.0 | |
| Feb. 19, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 19.7 μg/m3 (67) | 67.0 | |
| Feb. 19, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 23.3 μg/m3 (75) | 75.0 | |
| Feb. 19, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | N/A | 23.2 μg/m3 (75) | 75.0 |