Chicago (Ashburn) IL, US: 41.7547, -87.7136
Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Jan. 25, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.5 μg/m^{3} (27) | 27.0 | |
Jan. 25, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.3 μg/m^{3} (53) | 53.0 | |
Jan. 24, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 μg/m^{3} (54) | 54.0 | |
Jan. 24, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.8 μg/m^{3} (64) | 64.0 | |
Jan. 24, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.2 μg/m^{3} (57) | 57.0 | |
Jan. 24, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.2 μg/m^{3} (61) | 61.0 | |
Jan. 24, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.9 μg/m^{3} (60) | 60.0 | |
Jan. 24, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.9 μg/m^{3} (69) | 69.0 | |
Jan. 24, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.5 μg/m^{3} (64) | 64.0 | |
Jan. 24, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.2 μg/m^{3} (74) | 74.0 | |
Jan. 24, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 μg/m^{3} (71) | 71.0 | |
Jan. 24, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.3 μg/m^{3} (63) | 63.0 | |
Jan. 24, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.9 μg/m^{3} (71) | 71.0 | |
Jan. 24, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.7 μg/m^{3} (60) | 60.0 | |
Jan. 24, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.4 μg/m^{3} (48) | 48.0 | |
Jan. 24, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 μg/m^{3} (54) | 54.0 | |
Jan. 24, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.3 μg/m^{3} (57) | 57.0 | |
Jan. 24, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 μg/m^{3} (42) | 42.0 | |
Jan. 24, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.5 μg/m^{3} (55) | 55.0 | |
Jan. 24, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.6 μg/m^{3} (48) | 48.0 | |
Jan. 24, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.9 μg/m^{3} (50) | 50.0 | |
Jan. 24, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.9 μg/m^{3} (63) | 63.0 | |
Jan. 24, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.1 μg/m^{3} (34) | 34.0 | |
Jan. 24, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.9 μg/m^{3} (45) | 45.0 | |
Jan. 24, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.8 μg/m^{3} (37) | 37.0 | |
Jan. 24, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.2 μg/m^{3} (26) | 26.0 | |
Jan. 23, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.8 μg/m^{3} (28) | 28.0 | |
Jan. 23, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.8 μg/m^{3} (28) | 28.0 | |
Jan. 23, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.2 μg/m^{3} (26) | 26.0 | |
Jan. 23, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m^{3} (29) | 29.0 | |
Jan. 23, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.5 μg/m^{3} (40) | 40.0 | |
Jan. 23, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.3 μg/m^{3} (35) | 35.0 | |
Jan. 23, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.1 μg/m^{3} (46) | 46.0 | |
Jan. 23, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.9 μg/m^{3} (41) | 41.0 | |
Jan. 23, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 μg/m^{3} (50) | 50.0 | |
Jan. 23, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.7 μg/m^{3} (49) | 49.0 | |
Jan. 23, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 μg/m^{3} (38) | 38.0 | |
Jan. 23, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m^{3} (29) | 29.0 | |
Jan. 23, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.2 μg/m^{3} (42) | 42.0 | |
Jan. 23, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m^{3} (29) | 29.0 | |
Jan. 23, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.4 μg/m^{3} (31) | 31.0 | |
Jan. 23, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.5 μg/m^{3} (31) | 31.0 | |
Jan. 23, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.3 μg/m^{3} (18) | 18.0 | |
Jan. 23, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.5 μg/m^{3} (23) | 23.0 | |
Jan. 23, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.2 μg/m^{3} (22) | 22.0 | |
Jan. 23, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.8 μg/m^{3} (32) | 32.0 | |
Jan. 23, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.4 μg/m^{3} (27) | 27.0 | |
Jan. 23, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.2 μg/m^{3} (30) | 30.0 | |
Jan. 23, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.2 μg/m^{3} (38) | 38.0 | |
Jan. 23, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.4 μg/m^{3} (35) | 35.0 | |
Jan. 22, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.4 μg/m^{3} (31) | 31.0 | |
Jan. 22, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.8 μg/m^{3} (28) | 28.0 | |
Jan. 22, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.7 μg/m^{3} (45) | 45.0 | |
Jan. 22, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.5 μg/m^{3} (48) | 48.0 | |
Jan. 22, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.8 μg/m^{3} (41) | 41.0 | |
Jan. 22, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.8 μg/m^{3} (41) | 41.0 | |
Jan. 22, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.8 μg/m^{3} (58) | 58.0 | |
Jan. 22, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.9 μg/m^{3} (37) | 37.0 | |
Jan. 22, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.3 μg/m^{3} (61) | 61.0 | |
Jan. 22, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.6 μg/m^{3} (51) | 51.0 | |
Jan. 22, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.2 μg/m^{3} (42) | 42.0 | |
Jan. 22, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.5 μg/m^{3} (55) | 55.0 | |
Jan. 22, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.7 μg/m^{3} (45) | 45.0 | |
Jan. 22, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.3 μg/m^{3} (39) | 39.0 | |
Jan. 22, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 μg/m^{3} (46) | 46.0 | |
Jan. 22, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.8 μg/m^{3} (49) | 49.0 | |
Jan. 22, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.6 μg/m^{3} (48) | 48.0 | |
Jan. 22, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.7 μg/m^{3} (54) | 54.0 | |
Jan. 22, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.8 μg/m^{3} (52) | 52.0 | |
Jan. 22, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.9 μg/m^{3} (37) | 37.0 | |
Jan. 22, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.1 μg/m^{3} (50) | 50.0 | |
Jan. 22, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.1 μg/m^{3} (21) | 21.0 | |
Jan. 22, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.6 μg/m^{3} (19) | 19.0 | |
Jan. 22, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.7 μg/m^{3} (28) | 28.0 | |
Jan. 21, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.5 μg/m^{3} (19) | 19.0 | |
Jan. 21, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.7 μg/m^{3} (15) | 15.0 | |
Jan. 21, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.8 μg/m^{3} (20) | 20.0 | |
Jan. 21, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.9 μg/m^{3} (41) | 41.0 | |
Jan. 21, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m^{3} (8) | 8.0 | |
Jan. 21, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.5 μg/m^{3} (6) | 6.0 | |
Jan. 21, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.5 μg/m^{3} (53) | 53.0 | |
Jan. 21, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.3 μg/m^{3} (57) | 57.0 | |
Jan. 21, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.6 μg/m^{3} (56) | 56.0 | |
Jan. 21, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.3 μg/m^{3} (61) | 61.0 | |
Jan. 21, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.3 μg/m^{3} (47) | 47.0 | |
Jan. 21, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.7 μg/m^{3} (54) | 54.0 | |
Jan. 21, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 μg/m^{3} (61) | 61.0 | |
Jan. 21, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.6 μg/m^{3} (56) | 56.0 | |
Jan. 21, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 μg/m^{3} (52) | 52.0 | |
Jan. 21, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 μg/m^{3} (54) | 54.0 | |
Jan. 21, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.1 μg/m^{3} (42) | 42.0 | |
Jan. 21, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.7 μg/m^{3} (28) | 28.0 | |
Jan. 21, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.2 μg/m^{3} (38) | 38.0 | |
Jan. 21, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.1 μg/m^{3} (46) | 46.0 | |
Jan. 21, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.2 μg/m^{3} (22) | 22.0 | |
Jan. 21, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.2 μg/m^{3} (30) | 30.0 | |
Jan. 21, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m^{3} (29) | 29.0 | |
Jan. 21, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.3 μg/m^{3} (26) | 26.0 | |
Jan. 20, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.9 μg/m^{3} (12) | 12.0 | |
Jan. 20, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.4 μg/m^{3} (14) | 14.0 | |
Jan. 20, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.3 μg/m^{3} (10) | 10.0 | |
Jan. 20, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m^{3} (21) | 21.0 | |
Jan. 20, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.3 μg/m^{3} (39) | 39.0 | |
Jan. 20, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.3 μg/m^{3} (55) | 55.0 | |
Jan. 20, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m^{3} (17) | 17.0 | |
Jan. 20, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.4 μg/m^{3} (31) | 31.0 | |
Jan. 20, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m^{3} (25) | 25.0 | |
Jan. 20, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.2 μg/m^{3} (26) | 26.0 | |
Jan. 20, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.4 μg/m^{3} (27) | 27.0 | |
Jan. 20, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.6 μg/m^{3} (28) | 28.0 | |
Jan. 20, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.1 μg/m^{3} (17) | 17.0 | |
Jan. 20, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.5 μg/m^{3} (10) | 10.0 | |
Jan. 20, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.6 μg/m^{3} (23) | 23.0 | |
Jan. 20, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.9 μg/m^{3} (12) | 12.0 | |
Jan. 20, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.1 μg/m^{3} (9) | 9.0 | |
Jan. 20, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.1 μg/m^{3} (21) | 21.0 | |
Jan. 20, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.1 μg/m^{3} (34) | 34.0 | |
Jan. 20, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.5 μg/m^{3} (40) | 40.0 | |
Jan. 20, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.4 μg/m^{3} (31) | 31.0 | |
Jan. 20, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.4 μg/m^{3} (23) | 23.0 | |
Jan. 20, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.2 μg/m^{3} (30) | 30.0 | |
Jan. 20, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.7 μg/m^{3} (36) | 36.0 | |
Jan. 19, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.7 μg/m^{3} (32) | 32.0 | |
Jan. 19, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.8 μg/m^{3} (37) | 37.0 | |
Jan. 19, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.3 μg/m^{3} (14) | 14.0 | |
Jan. 19, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.6 μg/m^{3} (28) | 28.0 | |
Jan. 19, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.8 μg/m^{3} (24) | 24.0 | |
Jan. 19, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.1 μg/m^{3} (17) | 17.0 | |
Jan. 19, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.2 μg/m^{3} (18) | 18.0 | |
Jan. 19, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.9 μg/m^{3} (29) | 29.0 | |
Jan. 19, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.1 μg/m^{3} (21) | 21.0 | |
Jan. 19, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.4 μg/m^{3} (6) | 6.0 | |
Jan. 19, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.2 μg/m^{3} (13) | 13.0 | |
Jan. 19, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.2 μg/m^{3} (13) | 13.0 | |
Jan. 19, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.5 μg/m^{3} (2) | 2.0 | |
Jan. 19, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.8 μg/m^{3} (12) | 12.0 | |
Jan. 19, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.6 μg/m^{3} (15) | 15.0 | |
Jan. 19, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.4 μg/m^{3} (14) | 14.0 | |
Jan. 19, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.2 μg/m^{3} (9) | 9.0 | |
Jan. 19, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.8 μg/m^{3} (12) | 12.0 | |
Jan. 19, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.7 μg/m^{3} (11) | 11.0 | |
Jan. 19, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.4 μg/m^{3} (23) | 23.0 | |
Jan. 19, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.2 μg/m^{3} (34) | 34.0 | |
Jan. 19, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.6 μg/m^{3} (28) | 28.0 | |
Jan. 19, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.6 μg/m^{3} (32) | 32.0 | |
Jan. 19, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.1 μg/m^{3} (38) | 38.0 | |
Jan. 18, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.1 μg/m^{3} (38) | 38.0 | |
Jan. 18, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.8 μg/m^{3} (54) | 54.0 | |
Jan. 18, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 μg/m^{3} (42) | 42.0 | |
Jan. 18, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.2 μg/m^{3} (18) | 18.0 | |
Jan. 18, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.1 μg/m^{3} (0) | N/A | |
Jan. 18, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.2 μg/m^{3} (5) | 5.0 | |
Jan. 18, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.9 μg/m^{3} (8) | 8.0 | |
Jan. 18, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | -0.7 μg/m^{3} (0) | N/A | |
Jan. 18, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.8 μg/m^{3} (12) | 12.0 | |
Jan. 18, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.6 μg/m^{3} (15) | 15.0 | |
Jan. 18, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | -0.7 μg/m^{3} (0) | N/A | |
Jan. 18, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.7 μg/m^{3} (3) | 3.0 | |
Jan. 18, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.6 μg/m^{3} (7) | 7.0 | |
Jan. 18, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.3 μg/m^{3} (10) | 10.0 | |
Jan. 18, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.5 μg/m^{3} (19) | 19.0 | |
Jan. 18, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.3 μg/m^{3} (22) | 22.0 | |
Jan. 18, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.2 μg/m^{3} (5) | 5.0 | |
Jan. 18, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.1 μg/m^{3} (17) | 17.0 | |
Jan. 18, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.5 μg/m^{3} (19) | 19.0 | |
Jan. 18, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.5 μg/m^{3} (15) | 15.0 | |
Jan. 18, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.8 μg/m^{3} (20) | 20.0 | |
Jan. 18, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.2 μg/m^{3} (38) | 38.0 |