Fort Chipewyan CC, CA: 58.7083, -111.1764
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 18, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | N/A | N/A | 4.8 μg/m3 (20) | 20.0 | |
| Jan. 18, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | N/A | 3.4 μg/m3 (14) | 18.0 | |
| Jan. 18, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 5.4 μg/m3 (23) | 23.0 | |
| Jan. 18, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | N/A | 4.6 μg/m3 (19) | 22.0 | |
| Jan. 18, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | N/A | 3.1 μg/m3 (13) | 22.0 | |
| Jan. 18, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (22) | N/A | N/A | 5.2 μg/m3 (22) | 22.0 | |
| Jan. 18, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | N/A | 22.5 μg/m3 (72) | 72.0 | |
| Jan. 18, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 26.8 μg/m3 (81) | 81.0 | |
| Jan. 18, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | N/A | N/A | 23.0 | |
| Jan. 18, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | N/A | 21.4 μg/m3 (70) | 70.0 | |
| Jan. 18, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | N/A | 34.1 μg/m3 (97) | 97.0 | |
| Jan. 18, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 9.1 μg/m3 (38) | 38.0 | |
| Jan. 18, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 31.5 μg/m3 (91) | 91.0 | |
| Jan. 17, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | N/A | 7.1 μg/m3 (30) | 30.0 | |
| Jan. 17, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | N/A | 1.4 μg/m3 (6) | 25.0 | |
| Jan. 17, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 1.5 μg/m3 (6) | 28.0 | |
| Jan. 17, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 3.2 μg/m3 (13) | 29.0 | |
| Jan. 17, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 17, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 3.4 μg/m3 (14) | 29.0 | |
| Jan. 17, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | N/A | 1.6 μg/m3 (7) | 27.0 | |
| Jan. 17, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 1.2 μg/m3 (5) | 28.0 | |
| Jan. 17, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 1.1 μg/m3 (5) | 29.0 | |
| Jan. 17, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 1.1 μg/m3 (5) | 29.0 | |
| Jan. 17, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 1.0 μg/m3 (4) | 29.0 | |
| Jan. 17, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (4) | 4.0 | |
| Jan. 17, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 1.0 μg/m3 (4) | 29.0 | |
| Jan. 17, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 1.2 μg/m3 (5) | 29.0 | |
| Jan. 17, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 1.5 μg/m3 (6) | 29.0 | |
| Jan. 17, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 1.3 μg/m3 (5) | 29.0 | |
| Jan. 17, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 1.4 μg/m3 (6) | 29.0 | |
| Jan. 17, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | N/A | 1.3 μg/m3 (5) | 28.0 | |
| Jan. 17, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | N/A | 1.6 μg/m3 (7) | 28.0 | |
| Jan. 17, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 3.5 μg/m3 (15) | 28.0 | |
| Jan. 17, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 3.4 μg/m3 (14) | 28.0 | |
| Jan. 17, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | N/A | 1.9 μg/m3 (8) | 27.0 | |
| Jan. 17, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | N/A | 2.8 μg/m3 (12) | 26.0 | |
| Jan. 17, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | N/A | 2.5 μg/m3 (10) | 26.0 | |
| Jan. 16, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | N/A | 2.0 μg/m3 (8) | 27.0 | |
| Jan. 16, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | N/A | 3.1 μg/m3 (13) | 27.0 | |
| Jan. 16, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 1.5 μg/m3 (6) | 28.0 | |
| Jan. 16, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 20.6 μg/m3 (68) | 68.0 | |
| Jan. 16, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 35.0 μg/m3 (99) | 99.0 | |
| Jan. 16, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | N/A | 33.7 μg/m3 (96) | 96.0 | |
| Jan. 16, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | N/A | 95.7 μg/m3 (171) | 171.0 | |
| Jan. 16, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | N/A | 81.4 μg/m3 (164) | 164.0 | |
| Jan. 16, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | N/A | 95.4 μg/m3 (171) | 171.0 | |
| Jan. 16, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | N/A | 35.1 μg/m3 (99) | 99.0 | |
| Jan. 16, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | N/A | 5.5 μg/m3 (23) | 28.0 | |
| Jan. 16, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 9.4 μg/m3 (39) | 39.0 | |
| Jan. 16, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.7 μg/m3 (15) | 15.0 | |
| Jan. 16, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | N/A | 6.0 μg/m3 (25) | 28.0 | |
| Jan. 16, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 2.1 μg/m3 (9) | 28.0 | |
| Jan. 16, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | N/A | 2.3 μg/m3 (10) | 27.0 | |
| Jan. 16, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | N/A | 3.8 μg/m3 (16) | 26.0 | |
| Jan. 16, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | N/A | 2.7 μg/m3 (11) | 28.0 | |
| Jan. 16, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 2.8 μg/m3 (12) | 28.0 | |
| Jan. 16, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 3.0 μg/m3 (12) | 28.0 | |
| Jan. 16, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 2.9 μg/m3 (12) | 28.0 | |
| Jan. 16, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | N/A | 3.3 μg/m3 (14) | 27.0 | |
| Jan. 16, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 2.4 μg/m3 (10) | 28.0 | |
| Jan. 16, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 2.5 μg/m3 (10) | 28.0 | |
| Jan. 15, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | N/A | 2.6 μg/m3 (11) | 28.0 | |
| Jan. 15, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | N/A | 2.1 μg/m3 (9) | 28.0 | |
| Jan. 15, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 1.3 μg/m3 (5) | 29.0 | |
| Jan. 15, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | N/A | 1.2 μg/m3 (5) | 30.0 | |
| Jan. 15, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 1.7 μg/m3 (7) | 29.0 | |
| Jan. 15, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 1.1 μg/m3 (5) | 29.0 | |
| Jan. 15, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 1.2 μg/m3 (5) | 29.0 | |
| Jan. 15, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 1.2 μg/m3 (5) | 29.0 | |
| Jan. 15, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 1.1 μg/m3 (5) | 29.0 | |
| Jan. 15, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | N/A | 2.0 μg/m3 (8) | 27.0 | |
| Jan. 15, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | N/A | 7.5 μg/m3 (31) | 31.0 | |
| Jan. 15, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | N/A | 9.5 μg/m3 (40) | 40.0 | |
| Jan. 15, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | N/A | 13.5 μg/m3 (53) | 53.0 | |
| Jan. 15, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.4 μg/m3 (51) | 51.0 | |
| Jan. 15, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | N/A | 16.1 μg/m3 (59) | 59.0 | |
| Jan. 15, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | N/A | 14.2 μg/m3 (55) | 55.0 | |
| Jan. 15, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | N/A | 27.9 μg/m3 (84) | 84.0 | |
| Jan. 15, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 30.4 μg/m3 (89) | 89.0 | |
| Jan. 15, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 29.9 μg/m3 (88) | 88.0 | |
| Jan. 15, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 21.7 μg/m3 (71) | 71.0 | |
| Jan. 15, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 17.7 μg/m3 (62) | 62.0 | |
| Jan. 15, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 29.7 μg/m3 (88) | 88.0 | |
| Jan. 15, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 39.2 μg/m3 (109) | 109.0 | |
| Jan. 15, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | N/A | 41.3 μg/m3 (114) | 114.0 | |
| Jan. 14, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 36.2 μg/m3 (102) | 102.0 | |
| Jan. 14, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | N/A | 36.1 μg/m3 (102) | 102.0 | |
| Jan. 14, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 46.2 μg/m3 (127) | 127.0 | |
| Jan. 14, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 56.7 μg/m3 (151) | 151.0 | |
| Jan. 14, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | N/A | 30.8 μg/m3 (90) | 90.0 | |
| Jan. 14, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | N/A | 15.4 μg/m3 (57) | 57.0 | |
| Jan. 14, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | N/A | 13.2 μg/m3 (53) | 53.0 | |
| Jan. 14, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.1 μg/m3 (13) | 13.0 | |
| Jan. 14, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | N/A | 2.9 μg/m3 (12) | 23.0 | |
| Jan. 14, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 2.6 μg/m3 (11) | 24.0 | |
| Jan. 14, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 2.5 μg/m3 (10) | 24.0 | |
| Jan. 14, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 2.4 μg/m3 (10) | 24.0 | |
| Jan. 14, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 2.5 μg/m3 (10) | 24.0 | |
| Jan. 14, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 2.4 μg/m3 (10) | 24.0 | |
| Jan. 14, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 2.4 μg/m3 (10) | 24.0 | |
| Jan. 14, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 2.4 μg/m3 (10) | 24.0 | |
| Jan. 14, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 2.3 μg/m3 (10) | 24.0 | |
| Jan. 14, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 2.4 μg/m3 (10) | 24.0 | |
| Jan. 14, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 2.5 μg/m3 (10) | 24.0 | |
| Jan. 14, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | N/A | 2.8 μg/m3 (12) | 23.0 | |
| Jan. 14, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | N/A | 3.4 μg/m3 (14) | 23.0 | |
| Jan. 14, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (22) | N/A | N/A | 4.6 μg/m3 (19) | 22.0 | |
| Jan. 14, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | N/A | 6.8 μg/m3 (28) | 28.0 | |
| Jan. 13, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 2.4 μg/m3 (10) | 24.0 | |
| Jan. 13, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 2.1 μg/m3 (9) | 24.0 | |
| Jan. 13, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 2.0 μg/m3 (8) | 24.0 | |
| Jan. 13, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 9.7 μg/m3 (40) | 40.0 | |
| Jan. 13, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | N/A | 32.4 μg/m3 (93) | 93.0 | |
| Jan. 13, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 33.4 μg/m3 (96) | 96.0 | |
| Jan. 13, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | N/A | 47.9 μg/m3 (131) | 131.0 | |
| Jan. 13, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | N/A | 83.9 μg/m3 (165) | 165.0 | |
| Jan. 13, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 16.3 μg/m3 (59) | 59.0 | |
| Jan. 13, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.8 μg/m3 (16) | 16.0 | |
| Jan. 13, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | N/A | 4.0 μg/m3 (17) | 25.0 | |
| Jan. 13, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 4.1 μg/m3 (17) | 24.0 | |
| Jan. 13, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | N/A | 5.0 μg/m3 (21) | 25.0 | |
| Jan. 13, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | N/A | 6.2 μg/m3 (26) | 26.0 | |
| Jan. 13, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | N/A | 6.8 μg/m3 (28) | 28.0 | |
| Jan. 13, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | N/A | 7.5 μg/m3 (31) | 31.0 | |
| Jan. 13, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 8.4 μg/m3 (35) | 35.0 | |
| Jan. 13, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | N/A | 9.2 μg/m3 (38) | 38.0 | |
| Jan. 13, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | N/A | 10.2 μg/m3 (42) | 42.0 | |
| Jan. 13, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 13, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | N/A | 14.8 μg/m3 (56) | 56.0 | |
| Jan. 13, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | N/A | 13.4 μg/m3 (53) | 53.0 | |
| Jan. 13, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (22) | N/A | N/A | 12.4 μg/m3 (51) | 51.0 | |
| Jan. 12, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 14.8 μg/m3 (56) | 56.0 | |
| Jan. 12, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | N/A | 34.3 μg/m3 (97) | 97.0 | |
| Jan. 12, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 45.1 μg/m3 (124) | 124.0 | |
| Jan. 12, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 92.8 μg/m3 (170) | 170.0 | |
| Jan. 12, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | N/A | 79.0 μg/m3 (162) | 162.0 | |
| Jan. 12, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | N/A | 32.9 μg/m3 (94) | 94.0 | |
| Jan. 12, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | N/A | 29.4 μg/m3 (87) | 87.0 | |
| Jan. 12, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | N/A | N/A | 6.7 μg/m3 (28) | 28.0 | |
| Jan. 12, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | N/A | N/A | 7.9 μg/m3 (33) | 33.0 | |
| Jan. 12, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | N/A | N/A | 8.2 μg/m3 (34) | 34.0 | |
| Jan. 12, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.4 μg/m3 (35) | 35.0 | |
| Jan. 12, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | N/A | N/A | 8.8 μg/m3 (37) | 37.0 | |
| Jan. 12, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 12, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | N/A | N/A | 9.5 μg/m3 (40) | 40.0 | |
| Jan. 12, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (13) | N/A | N/A | 9.1 μg/m3 (38) | 38.0 | |
| Jan. 12, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (13) | N/A | N/A | 8.5 μg/m3 (35) | 35.0 | |
| Jan. 12, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (15) | N/A | N/A | 7.4 μg/m3 (31) | 31.0 | |
| Jan. 12, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | N/A | N/A | 6.9 μg/m3 (29) | 29.0 | |
| Jan. 12, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | N/A | 6.1 μg/m3 (25) | 25.0 | |
| Jan. 12, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | N/A | N/A | 5.6 μg/m3 (23) | 23.0 | |
| Jan. 12, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | N/A | 5.5 μg/m3 (23) | 23.0 | |
| Jan. 12, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | N/A | N/A | 5.3 μg/m3 (22) | 22.0 | |
| Jan. 12, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | N/A | 5.3 μg/m3 (22) | 22.0 | |
| Jan. 12, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | N/A | 5.1 μg/m3 (21) | 21.0 | |
| Jan. 11, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 5.5 μg/m3 (23) | 23.0 | |
| Jan. 11, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | N/A | 6.3 μg/m3 (26) | 26.0 | |
| Jan. 11, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (22) | N/A | N/A | 6.2 μg/m3 (26) | 26.0 | |
| Jan. 11, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (22) | N/A | N/A | 6.1 μg/m3 (25) | 25.0 | |
| Jan. 11, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 11, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | N/A | N/A | 22.0 | |
| Jan. 11, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 4.3 μg/m3 (18) | 24.0 | |
| Jan. 11, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 3.8 μg/m3 (16) | 24.0 | |
| Jan. 11, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 3.2 μg/m3 (13) | 24.0 | |
| Jan. 11, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 3.0 μg/m3 (12) | 24.0 | |
| Jan. 11, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | N/A | 2.2 μg/m3 (9) | 25.0 | |
| Jan. 11, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.9 μg/m3 (8) | 8.0 | |
| Jan. 11, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | N/A | 1.6 μg/m3 (7) | 26.0 |