Chalmette (Versailles) LA, US: 29.9431, -89.9761
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 19, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 10.1 μg/m3 (43) | 43.0 | |
| Jan. 19, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 11.8 μg/m3 (50) | 50.0 | |
| Jan. 19, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 7.3 μg/m3 (31) | 31.0 | |
| Jan. 19, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 10.1 μg/m3 (43) | 43.0 | |
| Jan. 19, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 4.4 μg/m3 (19) | 19.0 | |
| Jan. 19, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 7.5 μg/m3 (32) | 32.0 | |
| Jan. 19, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 31.6 μg/m3 (93) | 93.0 | |
| Jan. 19, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (8) | N/A | N/A | N/A | 27.0 μg/m3 (83) | 83.0 | |
| Jan. 19, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 6.0 ppb (9) | N/A | N/A | N/A | 13.2 μg/m3 (54) | 54.0 | |
| Jan. 19, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 10.7 μg/m3 (45) | 45.0 | |
| Jan. 19, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 9.7 μg/m3 (41) | 41.0 | |
| Jan. 19, 2021, noon | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 13.8 μg/m3 (55) | 55.0 | |
| Jan. 19, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 6.9 μg/m3 (29) | 29.0 | |
| Jan. 19, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 9.2 μg/m3 (39) | 39.0 | |
| Jan. 19, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 4.5 μg/m3 (19) | 19.0 | |
| Jan. 19, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 3.6 μg/m3 (16) | 16.0 | |
| Jan. 19, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.2 μg/m3 (10) | 10.0 | |
| Jan. 19, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 18.5 μg/m3 (65) | 65.0 | |
| Jan. 19, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | -0.3 μg/m3 (0) | 5.0 | |
| Jan. 19, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 4.2 μg/m3 (18) | 18.0 | |
| Jan. 19, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 6.3 μg/m3 (27) | 27.0 | |
| Jan. 19, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | N/A | 5.0 | |
| Jan. 19, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | N/A | 5.0 | |
| Jan. 19, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | N/A | 5.0 | |
| Jan. 18, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 1.3 μg/m3 (6) | 6.0 | |
| Jan. 18, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 8.1 μg/m3 (34) | 34.0 | |
| Jan. 18, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 2.7 μg/m3 (12) | 12.0 | |
| Jan. 18, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 3.5 μg/m3 (15) | 15.0 | |
| Jan. 18, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 6.8 μg/m3 (29) | 29.0 | |
| Jan. 18, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 13.0 μg/m3 (53) | 53.0 | |
| Jan. 18, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 31.7 μg/m3 (93) | 93.0 | |
| Jan. 18, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 10.7 μg/m3 (45) | 45.0 | |
| Jan. 18, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 14.7 μg/m3 (57) | 57.0 | |
| Jan. 18, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 18.3 μg/m3 (65) | 65.0 | |
| Jan. 18, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 21.5 μg/m3 (71) | 71.0 | |
| Jan. 18, 2021, noon | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 8.4 μg/m3 (36) | 36.0 | |
| Jan. 18, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 17.2 μg/m3 (62) | 62.0 | |
| Jan. 18, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 16.9 μg/m3 (62) | 62.0 | |
| Jan. 18, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 15.2 μg/m3 (58) | 58.0 | |
| Jan. 18, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 8.6 μg/m3 (36) | 36.0 | |
| Jan. 18, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (8) | N/A | N/A | N/A | 10.2 μg/m3 (43) | 43.0 | |
| Jan. 18, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 27.4 μg/m3 (84) | 84.0 | |
| Jan. 18, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 20.9 μg/m3 (70) | 70.0 | |
| Jan. 18, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 14.4 μg/m3 (56) | 56.0 | |
| Jan. 18, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (8) | N/A | N/A | N/A | 16.8 μg/m3 (61) | 61.0 | |
| Jan. 18, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 6.9 μg/m3 (29) | 29.0 | |
| Jan. 18, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 2.8 μg/m3 (12) | 12.0 | |
| Jan. 18, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 5.4 μg/m3 (23) | 23.0 | |
| Jan. 17, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 7.6 μg/m3 (32) | 32.0 | |
| Jan. 17, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 8.7 μg/m3 (37) | 37.0 | |
| Jan. 17, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 10.3 μg/m3 (43) | 43.0 | |
| Jan. 17, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 6.1 μg/m3 (26) | 26.0 | |
| Jan. 17, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (8) | N/A | N/A | N/A | 8.8 μg/m3 (37) | 37.0 | |
| Jan. 17, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (8) | N/A | N/A | N/A | 22.9 μg/m3 (74) | 74.0 | |
| Jan. 17, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 6.0 ppb (9) | N/A | N/A | N/A | 28.8 μg/m3 (87) | 87.0 | |
| Jan. 17, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (22) | N/A | N/A | N/A | 26.6 μg/m3 (82) | 82.0 | |
| Jan. 17, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (10) | N/A | N/A | N/A | 16.1 μg/m3 (60) | 60.0 | |
| Jan. 17, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 22.2 μg/m3 (73) | 73.0 | |
| Jan. 17, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 13.0 μg/m3 (53) | 53.0 | |
| Jan. 17, 2021, noon | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 25.3 μg/m3 (79) | 79.0 | |
| Jan. 17, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 17.6 μg/m3 (63) | 63.0 | |
| Jan. 17, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 15.2 μg/m3 (58) | 58.0 | |
| Jan. 17, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 21.2 μg/m3 (71) | 71.0 | |
| Jan. 17, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 28.0 μg/m3 (85) | 85.0 | |
| Jan. 17, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 26.8 μg/m3 (82) | 82.0 | |
| Jan. 17, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 24.6 μg/m3 (78) | 78.0 | |
| Jan. 17, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 38.0 μg/m3 (108) | 108.0 | |
| Jan. 17, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 31.9 μg/m3 (93) | 93.0 | |
| Jan. 17, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 30.0 μg/m3 (89) | 89.0 | |
| Jan. 17, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 23.9 μg/m3 (76) | 76.0 | |
| Jan. 17, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | N/A | 6.0 | |
| Jan. 17, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | N/A | 6.0 | |
| Jan. 16, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 5.8 μg/m3 (25) | 25.0 | |
| Jan. 16, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 10.5 μg/m3 (44) | 44.0 | |
| Jan. 16, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 2.3 μg/m3 (10) | 10.0 | |
| Jan. 16, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 3.8 μg/m3 (16) | 16.0 | |
| Jan. 16, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 8.1 μg/m3 (34) | 34.0 | |
| Jan. 16, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 33.0 μg/m3 (95) | 95.0 | |
| Jan. 16, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 11.4 μg/m3 (48) | 48.0 | |
| Jan. 16, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 11.2 μg/m3 (47) | 47.0 | |
| Jan. 16, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 11.2 μg/m3 (47) | 47.0 | |
| Jan. 16, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 10.1 μg/m3 (43) | 43.0 | |
| Jan. 16, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 4.8 μg/m3 (20) | 20.0 | |
| Jan. 16, 2021, noon | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 4.9 μg/m3 (21) | 21.0 | |
| Jan. 16, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 8.6 μg/m3 (36) | 36.0 | |
| Jan. 16, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 8.4 μg/m3 (36) | 36.0 | |
| Jan. 16, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 11.1 μg/m3 (47) | 47.0 | |
| Jan. 16, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 6.1 μg/m3 (26) | 26.0 | |
| Jan. 16, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 6.4 μg/m3 (27) | 27.0 | |
| Jan. 16, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 7.8 μg/m3 (33) | 33.0 | |
| Jan. 16, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 16, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | -0.9 μg/m3 (0) | 5.0 | |
| Jan. 16, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | -4.7 μg/m3 (0) | 6.0 | |
| Jan. 16, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | N/A | 6.0 | |
| Jan. 16, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | N/A | 5.0 | |
| Jan. 16, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | -1.8 μg/m3 (0) | 5.0 | |
| Jan. 15, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 0.4 μg/m3 (2) | 5.0 | |
| Jan. 15, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 3.5 μg/m3 (15) | 15.0 | |
| Jan. 15, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 6.5 μg/m3 (28) | 28.0 | |
| Jan. 15, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 6.4 μg/m3 (27) | 27.0 | |
| Jan. 15, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 6.1 μg/m3 (26) | 26.0 | |
| Jan. 15, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 13.1 μg/m3 (54) | 54.0 | |
| Jan. 15, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 14.9 μg/m3 (57) | 57.0 | |
| Jan. 15, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 27.0 μg/m3 (83) | 83.0 | |
| Jan. 15, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 6.3 μg/m3 (27) | 27.0 | |
| Jan. 15, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 6.4 μg/m3 (27) | 27.0 | |
| Jan. 15, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | -0.8 μg/m3 (0) | 5.0 | |
| Jan. 15, 2021, noon | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | -0.9 μg/m3 (0) | 5.0 | |
| Jan. 15, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | -3.0 μg/m3 (0) | 5.0 | |
| Jan. 15, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | -2.3 μg/m3 (0) | 5.0 | |
| Jan. 15, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | -1.6 μg/m3 (0) | 5.0 | |
| Jan. 15, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | -1.9 μg/m3 (0) | 5.0 | |
| Jan. 15, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.2 μg/m3 (1) | 1.0 | |
| Jan. 15, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 5.1 μg/m3 (22) | 22.0 | |
| Jan. 15, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 7.2 μg/m3 (31) | 31.0 | |
| Jan. 15, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 1.4 μg/m3 (6) | 6.0 | |
| Jan. 15, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | -0.9 μg/m3 (0) | 5.0 | |
| Jan. 15, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 2.7 μg/m3 (12) | 12.0 | |
| Jan. 15, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 0.9 μg/m3 (4) | 5.0 | |
| Jan. 15, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
| Jan. 14, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 2.9 μg/m3 (13) | 13.0 | |
| Jan. 14, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 4.4 μg/m3 (19) | 19.0 | |
| Jan. 14, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 5.9 μg/m3 (25) | 25.0 | |
| Jan. 14, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 14, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 10.2 μg/m3 (43) | 43.0 | |
| Jan. 14, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 8.6 μg/m3 (36) | 36.0 | |
| Jan. 14, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 23.5 μg/m3 (75) | 75.0 | |
| Jan. 14, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 31.7 μg/m3 (93) | 93.0 | |
| Jan. 14, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 15.0 μg/m3 (58) | 58.0 | |
| Jan. 14, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 20.0 μg/m3 (68) | 68.0 | |
| Jan. 14, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 18.1 μg/m3 (64) | 64.0 | |
| Jan. 14, 2021, noon | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 24.6 μg/m3 (78) | 78.0 | |
| Jan. 14, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 18.4 μg/m3 (65) | 65.0 | |
| Jan. 14, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 15.1 μg/m3 (58) | 58.0 | |
| Jan. 14, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 17.1 μg/m3 (62) | 62.0 | |
| Jan. 14, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 19.6 μg/m3 (67) | 67.0 | |
| Jan. 14, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 20.5 μg/m3 (69) | 69.0 | |
| Jan. 14, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 18.7 μg/m3 (65) | 65.0 | |
| Jan. 14, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 12.1 μg/m3 (51) | 51.0 | |
| Jan. 14, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 11.1 μg/m3 (47) | 47.0 | |
| Jan. 14, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 12.6 μg/m3 (53) | 53.0 | |
| Jan. 14, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | 6.6 μg/m3 (28) | 28.0 | |
| Jan. 14, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | N/A | -2.8 μg/m3 (0) | 6.0 | |
| Jan. 14, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | N/A | 5.0 | |
| Jan. 13, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 4.3 μg/m3 (18) | 18.0 | |
| Jan. 13, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 8.0 μg/m3 (34) | 34.0 | |
| Jan. 13, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 8.6 μg/m3 (36) | 36.0 | |
| Jan. 13, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 11.9 μg/m3 (50) | 50.0 | |
| Jan. 13, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 15.2 μg/m3 (58) | 58.0 | |
| Jan. 13, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 30.9 μg/m3 (91) | 91.0 | |
| Jan. 13, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 15.1 μg/m3 (58) | 58.0 | |
| Jan. 13, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 12.1 μg/m3 (51) | 51.0 | |
| Jan. 13, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 26.2 μg/m3 (81) | 81.0 | |
| Jan. 13, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 27.0 μg/m3 (83) | 83.0 | |
| Jan. 13, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 12.5 μg/m3 (52) | 52.0 | |
| Jan. 13, 2021, noon | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 25.9 μg/m3 (81) | 81.0 | |
| Jan. 13, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 16.3 μg/m3 (60) | 60.0 | |
| Jan. 13, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 14.1 μg/m3 (56) | 56.0 | |
| Jan. 13, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 14.4 μg/m3 (56) | 56.0 | |
| Jan. 13, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 12.8 μg/m3 (53) | 53.0 | |
| Jan. 13, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 19.8 μg/m3 (68) | 68.0 | |
| Jan. 13, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 10.9 μg/m3 (46) | 46.0 | |
| Jan. 13, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 27.3 μg/m3 (83) | 83.0 | |
| Jan. 13, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 9.4 μg/m3 (40) | 40.0 | |
| Jan. 13, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 5.1 μg/m3 (22) | 22.0 | |
| Jan. 13, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 19.2 μg/m3 (66) | 66.0 | |
| Jan. 13, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 17.0 μg/m3 (62) | 62.0 | |
| Jan. 13, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | N/A | 11.1 μg/m3 (47) | 47.0 |