Phoenix (S Mtain) AZ, US: 33.4033, -112.0731
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 22, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (31) | 0.1 ppb (2) | 7.2 μg/m3 (7) | 2.0 μg/m3 (9) | 31.0 | |
| Jan. 22, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | 0.1 ppb (2) | 6.9 μg/m3 (7) | 2.0 μg/m3 (9) | 33.0 | |
| Jan. 22, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (30) | 0.1 ppb (2) | 7.9 μg/m3 (8) | 2.3 μg/m3 (10) | 30.0 | |
| Jan. 22, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (23) | 0.1 ppb (2) | 8.4 μg/m3 (8) | 3.8 μg/m3 (16) | 23.0 | |
| Jan. 22, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (20) | 0.1 ppb (2) | 27.2 μg/m3 (26) | 9.5 μg/m3 (40) | 40.0 | |
| Jan. 22, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (5) | 0.5 ppb (6) | 52.3 μg/m3 (49) | 13.4 μg/m3 (54) | 54.0 | |
| Jan. 22, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 0.4 ppb (5) | 48.7 μg/m3 (46) | 7.3 μg/m3 (31) | 46.0 | |
| Jan. 22, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 0.4 ppb (5) | 21.3 μg/m3 (20) | 2.7 μg/m3 (12) | 20.0 | |
| Jan. 22, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | 0.4 ppb (5) | 10.8 μg/m3 (10) | 2.6 μg/m3 (11) | 11.0 | |
| Jan. 22, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (9) | 0.2 ppb (3) | 8.5 μg/m3 (8) | 2.6 μg/m3 (11) | 11.0 | |
| Jan. 22, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 ppb (11) | 0.1 ppb (2) | 8.8 μg/m3 (9) | 4.8 μg/m3 (20) | 20.0 | |
| Jan. 22, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (8) | 0.2 ppb (3) | 9.7 μg/m3 (9) | 5.3 μg/m3 (23) | 23.0 | |
| Jan. 22, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (7) | 0.2 ppb (3) | 8.2 μg/m3 (8) | 4.6 μg/m3 (20) | 20.0 | |
| Jan. 22, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 ppb (11) | 0.2 ppb (3) | 9.5 μg/m3 (9) | 5.2 μg/m3 (22) | 22.0 | |
| Jan. 22, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 ppb (11) | 0.2 ppb (3) | 15.4 μg/m3 (15) | 6.4 μg/m3 (27) | 27.0 | |
| Jan. 22, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (5) | 0.4 ppb (5) | 35.6 μg/m3 (33) | 14.6 μg/m3 (57) | 57.0 | |
| Jan. 22, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 0.6 ppb (7) | 34.0 μg/m3 (32) | 12.4 μg/m3 (52) | 52.0 | |
| Jan. 22, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | 0.6 ppb (7) | 30.4 μg/m3 (29) | 9.8 μg/m3 (41) | 41.0 | |
| Jan. 22, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (7) | 0.4 ppb (5) | 23.4 μg/m3 (22) | 5.0 μg/m3 (21) | 22.0 | |
| Jan. 22, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 ppb (13) | 0.4 ppb (5) | 19.1 μg/m3 (18) | 2.7 μg/m3 (12) | 18.0 | |
| Jan. 22, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (24) | 0.2 ppb (3) | 12.7 μg/m3 (12) | 2.9 μg/m3 (13) | 24.0 | |
| Jan. 22, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (30) | 0.1 ppb (2) | 6.3 μg/m3 (6) | 1.4 μg/m3 (6) | 30.0 | |
| Jan. 21, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | 0.1 ppb (2) | 4.0 μg/m3 (4) | 1.5 μg/m3 (7) | 34.0 | |
| Jan. 21, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | 0.1 ppb (2) | 6.6 μg/m3 (7) | 2.7 μg/m3 (12) | 34.0 | |
| Jan. 21, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | 0.1 ppb (2) | 6.2 μg/m3 (6) | 2.7 μg/m3 (12) | 34.0 | |
| Jan. 21, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | 0.1 ppb (2) | 3.4 μg/m3 (4) | 0.8 μg/m3 (4) | 33.0 | |
| Jan. 21, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (31) | 0.1 ppb (2) | 5.1 μg/m3 (5) | 0.8 μg/m3 (4) | 31.0 | |
| Jan. 21, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (26) | 0.1 ppb (2) | 9.2 μg/m3 (9) | 3.0 μg/m3 (13) | 26.0 | |
| Jan. 21, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (22) | 0.2 ppb (3) | 16.9 μg/m3 (16) | 4.8 μg/m3 (20) | 22.0 | |
| Jan. 21, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 ppb (12) | 0.3 ppb (4) | 42.4 μg/m3 (40) | 6.4 μg/m3 (27) | 40.0 | |
| Jan. 21, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 ppb (6) | 0.4 ppb (5) | 28.3 μg/m3 (27) | 5.3 μg/m3 (23) | 27.0 | |
| Jan. 21, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (8) | 0.2 ppb (3) | 15.8 μg/m3 (15) | 4.5 μg/m3 (19) | 19.0 | |
| Jan. 21, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 ppb (10) | 0.2 ppb (3) | 8.9 μg/m3 (9) | 0.3 μg/m3 (2) | 10.0 | |
| Jan. 21, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (25) | 0.1 ppb (2) | 9.4 μg/m3 (9) | 3.3 μg/m3 (14) | 25.0 | |
| Jan. 21, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (23) | 0.1 ppb (2) | 9.4 μg/m3 (9) | 2.3 μg/m3 (10) | 23.0 | |
| Jan. 21, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (21) | 0.1 ppb (2) | 10.8 μg/m3 (10) | 1.4 μg/m3 (6) | 21.0 | |
| Jan. 21, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (26) | 0.1 ppb (2) | 8.4 μg/m3 (8) | 1.8 μg/m3 (8) | 26.0 | |
| Jan. 21, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (25) | 0.1 ppb (2) | 6.8 μg/m3 (7) | 2.1 μg/m3 (9) | 25.0 | |
| Jan. 21, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (25) | 0.1 ppb (2) | 7.4 μg/m3 (7) | 1.7 μg/m3 (8) | 25.0 | |
| Jan. 21, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (25) | 0.1 ppb (2) | 7.2 μg/m3 (7) | 1.2 μg/m3 (5) | 25.0 | |
| Jan. 21, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (25) | 0.1 ppb (2) | 10.5 μg/m3 (10) | 3.6 μg/m3 (16) | 25.0 | |
| Jan. 21, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (26) | 0.1 ppb (2) | 13.8 μg/m3 (13) | 4.6 μg/m3 (20) | 26.0 | |
| Jan. 21, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (17) | 0.3 ppb (4) | 30.5 μg/m3 (29) | 8.2 μg/m3 (35) | 35.0 | |
| Jan. 21, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (3) | 0.6 ppb (7) | 33.6 μg/m3 (32) | 7.0 μg/m3 (30) | 32.0 | |
| Jan. 21, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (15) | 0.3 ppb (4) | 26.3 μg/m3 (25) | 5.5 μg/m3 (23) | 25.0 | |
| Jan. 21, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (32) | 0.1 ppb (2) | 12.3 μg/m3 (12) | 2.6 μg/m3 (11) | 32.0 | |
| Jan. 20, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | 0.1 ppb (2) | 11.9 μg/m3 (12) | 2.9 μg/m3 (13) | 37.0 | |
| Jan. 20, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | 0.1 ppb (2) | 10.1 μg/m3 (10) | 0.8 μg/m3 (4) | 38.0 | |
| Jan. 20, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | 0.1 ppb (2) | 14.6 μg/m3 (14) | 2.5 μg/m3 (11) | 37.0 | |
| Jan. 20, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | 0.1 ppb (2) | 18.1 μg/m3 (17) | 1.6 μg/m3 (7) | 37.0 | |
| Jan. 20, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | 0.1 ppb (2) | N/A | N/A | 35.0 | |
| Jan. 20, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | 0.1 ppb (2) | N/A | N/A | 33.0 | |
| Jan. 20, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (31) | 0.1 ppb (2) | N/A | N/A | 31.0 | |
| Jan. 20, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | 0.1 ppb (2) | N/A | N/A | 28.0 | |
| Jan. 20, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (25) | 0.1 ppb (2) | N/A | N/A | 25.0 | |
| Jan. 20, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 56.1 μg/m3 (52) | 8.0 μg/m3 (34) | 52.0 | |
| Jan. 20, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 59.8 μg/m3 (54) | 10.1 μg/m3 (43) | 54.0 | |
| Jan. 20, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (20) | 0.3 ppb (4) | 43.5 μg/m3 (41) | 6.5 μg/m3 (28) | 41.0 | |
| Jan. 20, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (26) | 0.3 ppb (4) | 48.6 μg/m3 (45) | 6.1 μg/m3 (26) | 45.0 | |
| Jan. 20, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (29) | 0.3 ppb (4) | 57.6 μg/m3 (53) | 5.0 μg/m3 (21) | 53.0 | |
| Jan. 20, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (31) | 0.3 ppb (4) | 67.7 μg/m3 (58) | 7.6 μg/m3 (32) | 58.0 | |
| Jan. 20, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (25) | 0.3 ppb (4) | 91.6 μg/m3 (70) | 11.3 μg/m3 (48) | 70.0 | |
| Jan. 20, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (15) | 0.4 ppb (5) | 105.4 μg/m3 (76) | 15.0 μg/m3 (58) | 76.0 | |
| Jan. 20, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (20) | 0.4 ppb (5) | 117.0 μg/m3 (82) | 13.8 μg/m3 (55) | 82.0 | |
| Jan. 20, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | 0.3 ppb (4) | 104.7 μg/m3 (76) | 11.1 μg/m3 (47) | 76.0 | |
| Jan. 20, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (29) | 0.3 ppb (4) | 113.6 μg/m3 (81) | 11.4 μg/m3 (48) | 81.0 | |
| Jan. 20, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (27) | 0.3 ppb (4) | 121.1 μg/m3 (84) | 13.0 μg/m3 (53) | 84.0 | |
| Jan. 20, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (24) | 0.4 ppb (5) | 88.1 μg/m3 (68) | 9.6 μg/m3 (40) | 68.0 | |
| Jan. 20, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (23) | 0.4 ppb (5) | 79.9 μg/m3 (64) | 10.6 μg/m3 (45) | 64.0 | |
| Jan. 20, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (25) | 0.4 ppb (5) | 44.2 μg/m3 (41) | 8.5 μg/m3 (36) | 41.0 | |
| Jan. 19, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (27) | 0.4 ppb (5) | 11.7 μg/m3 (11) | 2.4 μg/m3 (10) | 27.0 | |
| Jan. 19, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (32) | 0.3 ppb (4) | 13.9 μg/m3 (13) | 6.3 μg/m3 (27) | 32.0 | |
| Jan. 19, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (32) | 0.3 ppb (4) | 9.5 μg/m3 (9) | 5.3 μg/m3 (23) | 32.0 | |
| Jan. 19, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | 0.3 ppb (4) | 6.2 μg/m3 (6) | 2.1 μg/m3 (9) | 34.0 | |
| Jan. 19, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | 0.3 ppb (4) | 13.1 μg/m3 (13) | 6.6 μg/m3 (28) | 33.0 | |
| Jan. 19, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (27) | 0.4 ppb (5) | 14.3 μg/m3 (14) | 5.6 μg/m3 (24) | 27.0 | |
| Jan. 19, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (24) | 0.4 ppb (5) | 24.2 μg/m3 (23) | 8.5 μg/m3 (36) | 36.0 | |
| Jan. 19, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 ppb (13) | 0.5 ppb (6) | 33.9 μg/m3 (32) | 7.4 μg/m3 (31) | 32.0 | |
| Jan. 19, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (5) | 0.5 ppb (6) | 31.2 μg/m3 (29) | 3.2 μg/m3 (14) | 29.0 | |
| Jan. 19, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (7) | 0.5 ppb (6) | 22.7 μg/m3 (22) | 5.3 μg/m3 (23) | 23.0 | |
| Jan. 19, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (25) | 0.3 ppb (4) | 272.2 μg/m3 (160) | 13.0 μg/m3 (53) | 160.0 | |
| Jan. 19, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (30) | 0.3 ppb (4) | 156.2 μg/m3 (102) | 5.9 μg/m3 (25) | 102.0 | |
| Jan. 19, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (23) | 0.4 ppb (5) | 125.6 μg/m3 (86) | 8.0 μg/m3 (34) | 86.0 | |
| Jan. 19, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (22) | 0.4 ppb (5) | 57.7 μg/m3 (53) | 10.4 μg/m3 (44) | 53.0 | |
| Jan. 19, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 0.7 ppb (8) | 38.7 μg/m3 (36) | 12.2 μg/m3 (52) | 52.0 | |
| Jan. 19, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | 0.6 ppb (7) | 33.6 μg/m3 (32) | 11.6 μg/m3 (49) | 49.0 | |
| Jan. 19, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 ppb (12) | 0.5 ppb (6) | 41.2 μg/m3 (39) | 14.9 μg/m3 (57) | 57.0 | |
| Jan. 19, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (7) | 0.8 ppb (10) | 54.3 μg/m3 (51) | 16.5 μg/m3 (61) | 61.0 | |
| Jan. 19, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (3) | 0.8 ppb (10) | 60.4 μg/m3 (54) | 19.0 μg/m3 (66) | 66.0 | |
| Jan. 19, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (3) | 0.9 ppb (11) | 75.7 μg/m3 (62) | 19.1 μg/m3 (66) | 66.0 | |
| Jan. 19, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 1.2 ppb (14) | 78.0 μg/m3 (63) | 19.4 μg/m3 (67) | 67.0 | |
| Jan. 19, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | 1.4 ppb (16) | 84.8 μg/m3 (66) | 12.5 μg/m3 (52) | 66.0 | |
| Jan. 19, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (7) | 0.9 ppb (11) | 77.7 μg/m3 (63) | 10.8 μg/m3 (46) | 63.0 | |
| Jan. 19, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (22) | 0.5 ppb (6) | 39.1 μg/m3 (37) | 7.4 μg/m3 (31) | 37.0 | |
| Jan. 18, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | 0.4 ppb (5) | 30.7 μg/m3 (29) | 6.1 μg/m3 (26) | 33.0 | |
| Jan. 18, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | 0.4 ppb (5) | 27.8 μg/m3 (26) | 8.6 μg/m3 (36) | 36.0 | |
| Jan. 18, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (32) | 0.4 ppb (5) | 31.5 μg/m3 (30) | 8.7 μg/m3 (37) | 37.0 | |
| Jan. 18, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | 0.5 ppb (6) | 33.3 μg/m3 (31) | 9.5 μg/m3 (40) | 40.0 | |
| Jan. 18, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (23) | 0.5 ppb (6) | 51.4 μg/m3 (48) | 18.0 μg/m3 (64) | 64.0 | |
| Jan. 18, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (14) | 0.7 ppb (8) | 62.7 μg/m3 (55) | 19.5 μg/m3 (67) | 67.0 | |
| Jan. 18, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 ppb (11) | 0.8 ppb (10) | 72.0 μg/m3 (60) | 21.3 μg/m3 (71) | 71.0 | |
| Jan. 18, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (5) | 1.0 ppb (12) | 102.4 μg/m3 (75) | 26.2 μg/m3 (81) | 81.0 | |
| Jan. 18, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 1.4 ppb (16) | 116.5 μg/m3 (82) | 28.2 μg/m3 (85) | 85.0 | |
| Jan. 18, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 1.5 ppb (18) | 84.5 μg/m3 (66) | 23.9 μg/m3 (76) | 76.0 | |
| Jan. 18, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 1.3 ppb (15) | 60.4 μg/m3 (54) | 23.7 μg/m3 (76) | 76.0 | |
| Jan. 18, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 1.1 ppb (13) | 53.4 μg/m3 (50) | 27.1 μg/m3 (83) | 83.0 | |
| Jan. 18, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 0.9 ppb (11) | 49.1 μg/m3 (46) | 23.2 μg/m3 (75) | 75.0 | |
| Jan. 18, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 1.0 ppb (12) | 47.8 μg/m3 (45) | 22.5 μg/m3 (73) | 73.0 | |
| Jan. 18, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 1.0 ppb (12) | 40.8 μg/m3 (38) | 19.2 μg/m3 (66) | 66.0 | |
| Jan. 18, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 1.1 ppb (13) | 43.6 μg/m3 (41) | 18.9 μg/m3 (66) | 66.0 | |
| Jan. 18, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 1.1 ppb (13) | 49.4 μg/m3 (46) | 20.5 μg/m3 (69) | 69.0 | |
| Jan. 18, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 1.2 ppb (14) | 458.9 μg/m3 (344) | 40.4 μg/m3 (114) | 344.0 | |
| Jan. 18, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 1.5 ppb (18) | 201.6 μg/m3 (125) | 35.8 μg/m3 (102) | 125.0 | |
| Jan. 18, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 2.0 ppb (23) | 129.7 μg/m3 (88) | 47.5 μg/m3 (131) | 131.0 | |
| Jan. 18, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 2.4 ppb (28) | 199.5 μg/m3 (124) | 69.5 μg/m3 (159) | 159.0 | |
| Jan. 18, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 2.5 ppb (29) | 131.8 μg/m3 (90) | 42.4 μg/m3 (118) | 118.0 | |
| Jan. 18, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (5) | 1.1 ppb (13) | 67.0 μg/m3 (57) | 13.8 μg/m3 (55) | 57.0 | |
| Jan. 18, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (29) | 0.5 ppb (6) | 23.7 μg/m3 (22) | 4.9 μg/m3 (21) | 29.0 | |
| Jan. 17, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | 0.4 ppb (5) | 14.0 μg/m3 (13) | 2.5 μg/m3 (11) | 40.0 | |
| Jan. 17, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | 0.4 ppb (5) | 14.0 μg/m3 (13) | 2.3 μg/m3 (10) | 40.0 | |
| Jan. 17, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | 0.4 ppb (5) | 14.7 μg/m3 (14) | 5.0 μg/m3 (21) | 37.0 | |
| Jan. 17, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | 0.4 ppb (5) | 24.3 μg/m3 (23) | 9.8 μg/m3 (41) | 41.0 | |
| Jan. 17, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (27) | 0.6 ppb (7) | 30.6 μg/m3 (29) | 13.7 μg/m3 (55) | 55.0 | |
| Jan. 17, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (17) | 0.7 ppb (8) | 41.5 μg/m3 (39) | 19.3 μg/m3 (67) | 67.0 | |
| Jan. 17, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (15) | 0.8 ppb (10) | 78.6 μg/m3 (63) | 36.3 μg/m3 (103) | 103.0 | |
| Jan. 17, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (7) | 1.3 ppb (15) | 91.1 μg/m3 (69) | 36.6 μg/m3 (104) | 104.0 | |
| Jan. 17, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | 1.3 ppb (15) | 56.9 μg/m3 (52) | 24.6 μg/m3 (78) | 78.0 | |
| Jan. 17, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 0.9 ppb (11) | 34.7 μg/m3 (33) | 14.7 μg/m3 (57) | 57.0 | |
| Jan. 17, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (3) | 0.7 ppb (8) | 29.7 μg/m3 (28) | 13.6 μg/m3 (55) | 55.0 | |
| Jan. 17, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (3) | 0.8 ppb (10) | 28.3 μg/m3 (27) | 15.8 μg/m3 (59) | 59.0 | |
| Jan. 17, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (3) | 0.8 ppb (10) | 44.9 μg/m3 (42) | 28.5 μg/m3 (86) | 86.0 | |
| Jan. 17, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 1.1 ppb (13) | 57.8 μg/m3 (53) | 36.6 μg/m3 (104) | 104.0 | |
| Jan. 17, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 1.2 ppb (14) | 90.1 μg/m3 (69) | 58.2 μg/m3 (153) | 153.0 | |
| Jan. 17, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 1.5 ppb (18) | 99.9 μg/m3 (74) | 63.2 μg/m3 (155) | 155.0 | |
| Jan. 17, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 1.5 ppb (18) | 113.3 μg/m3 (80) | 72.5 μg/m3 (160) | 160.0 | |
| Jan. 17, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 1.5 ppb (18) | 96.5 μg/m3 (72) | 55.5 μg/m3 (151) | 151.0 | |
| Jan. 17, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 1.4 ppb (16) | 109.1 μg/m3 (78) | 51.0 μg/m3 (140) | 140.0 | |
| Jan. 17, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 1.8 ppb (21) | 107.6 μg/m3 (78) | 41.8 μg/m3 (117) | 117.0 | |
| Jan. 17, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 2.2 ppb (25) | 121.2 μg/m3 (84) | 40.7 μg/m3 (114) | 114.0 | |
| Jan. 17, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 2.2 ppb (25) | 129.4 μg/m3 (88) | 38.7 μg/m3 (109) | 109.0 | |
| Jan. 17, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (4) | 1.5 ppb (18) | 68.5 μg/m3 (58) | 16.1 μg/m3 (60) | 60.0 | |
| Jan. 17, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (25) | 0.5 ppb (6) | 19.9 μg/m3 (19) | 2.8 μg/m3 (12) | 25.0 | |
| Jan. 16, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | 0.4 ppb (5) | 23.9 μg/m3 (23) | 4.6 μg/m3 (20) | 40.0 | |
| Jan. 16, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | 0.4 ppb (5) | 27.8 μg/m3 (26) | 6.8 μg/m3 (29) | 41.0 | |
| Jan. 16, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | 0.4 ppb (5) | 22.5 μg/m3 (21) | 3.8 μg/m3 (16) | 40.0 | |
| Jan. 16, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | 0.4 ppb (5) | 21.8 μg/m3 (21) | 4.6 μg/m3 (20) | 38.0 | |
| Jan. 16, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (29) | 0.4 ppb (5) | 32.5 μg/m3 (31) | 9.4 μg/m3 (40) | 40.0 | |
| Jan. 16, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (22) | 0.6 ppb (7) | 30.3 μg/m3 (29) | 7.2 μg/m3 (31) | 31.0 | |
| Jan. 16, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (16) | 0.6 ppb (7) | 44.7 μg/m3 (42) | 10.8 μg/m3 (46) | 46.0 | |
| Jan. 16, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (7) | 0.8 ppb (10) | 99.7 μg/m3 (74) | 30.9 μg/m3 (91) | 91.0 | |
| Jan. 16, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 1.5 ppb (18) | 86.1 μg/m3 (67) | 30.4 μg/m3 (90) | 90.0 | |
| Jan. 16, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 1.3 ppb (15) | 68.2 μg/m3 (58) | 25.1 μg/m3 (79) | 79.0 | |
| Jan. 16, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 1.1 ppb (13) | 55.7 μg/m3 (52) | 24.2 μg/m3 (77) | 77.0 | |
| Jan. 16, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 1.0 ppb (12) | 48.0 μg/m3 (45) | 22.7 μg/m3 (74) | 74.0 | |
| Jan. 16, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 0.9 ppb (11) | 44.9 μg/m3 (42) | 22.4 μg/m3 (73) | 73.0 | |
| Jan. 16, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 0.9 ppb (11) | 75.7 μg/m3 (62) | 26.3 μg/m3 (81) | 81.0 | |
| Jan. 16, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | 1.0 ppb (12) | 81.7 μg/m3 (65) | 32.3 μg/m3 (94) | 94.0 | |
| Jan. 16, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 1.2 ppb (14) | 58.6 μg/m3 (53) | 31.6 μg/m3 (93) | 93.0 | |
| Jan. 16, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 1.2 ppb (14) | 74.6 μg/m3 (61) | 40.5 μg/m3 (114) | 114.0 | |
| Jan. 16, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 1.3 ppb (15) | 90.1 μg/m3 (69) | 43.3 μg/m3 (121) | 121.0 | |
| Jan. 16, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 1.4 ppb (16) | 108.7 μg/m3 (78) | 40.6 μg/m3 (114) | 114.0 | |
| Jan. 16, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 1.5 ppb (18) | 97.6 μg/m3 (73) | 35.6 μg/m3 (102) | 102.0 | |
| Jan. 16, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 1.8 ppb (21) | 91.3 μg/m3 (69) | 23.3 μg/m3 (75) | 75.0 | |
| Jan. 16, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 1.3 ppb (15) | 86.1 μg/m3 (67) | 17.0 μg/m3 (62) | 67.0 | |
| Jan. 16, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | 0.9 ppb (11) | 68.7 μg/m3 (58) | 9.2 μg/m3 (39) | 58.0 | |
| Jan. 16, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (21) | 0.5 ppb (6) | 32.8 μg/m3 (31) | 4.1 μg/m3 (18) | 31.0 | |
| Jan. 15, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | 0.3 ppb (4) | 26.6 μg/m3 (25) | 2.5 μg/m3 (11) | 34.0 | |
| Jan. 15, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | 0.3 ppb (4) | 20.0 μg/m3 (19) | 1.3 μg/m3 (6) | 37.0 |