Fairbanks (Pioneer Rd) AK, US: 64.8458, -147.72727
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| April 3, 2020, 2 p.m. | N/A | N/A | 26.3 ppb (24) | N/A | N/A | 5.0 ppb (7) | 10.0 ppb (8) | 0.3 ppb (3) | 12.0 μg/m3 (11) | 6.0 μg/m3 (25) | 25.0 | |
| April 3, 2020, 1 p.m. | N/A | N/A | 27.6 ppb (26) | N/A | N/A | 7.0 ppb (10) | 9.0 ppb (7) | 0.3 ppb (3) | 19.0 μg/m3 (17) | 8.0 μg/m3 (33) | 33.0 | |
| April 3, 2020, noon | N/A | N/A | 26.7 ppb (25) | N/A | N/A | 7.0 ppb (10) | 8.0 ppb (6) | 0.3 ppb (3) | 18.0 μg/m3 (16) | 6.0 μg/m3 (25) | 25.0 | |
| April 3, 2020, 11 a.m. | N/A | N/A | 22.0 ppb (20) | N/A | N/A | 4.0 ppb (6) | 10.0 ppb (8) | 0.3 ppb (3) | 16.0 μg/m3 (15) | 6.0 μg/m3 (25) | 25.0 | |
| April 3, 2020, 10 a.m. | N/A | N/A | 28.0 ppb (26) | N/A | N/A | 8.0 ppb (11) | 7.0 ppb (5) | 0.3 ppb (3) | 14.0 μg/m3 (13) | 8.0 μg/m3 (33) | 33.0 | |
| April 3, 2020, 9 a.m. | N/A | N/A | 27.9 ppb (26) | N/A | N/A | 6.0 ppb (9) | 8.0 ppb (6) | 0.3 ppb (3) | 13.0 μg/m3 (12) | 8.0 μg/m3 (33) | 33.0 | |
| April 3, 2020, 8 a.m. | N/A | N/A | 15.8 ppb (15) | N/A | N/A | 3.0 ppb (4) | 19.0 ppb (15) | 0.2 ppb (2) | 19.0 μg/m3 (17) | 4.0 μg/m3 (17) | 17.0 | |
| April 3, 2020, 7 a.m. | N/A | N/A | 19.5 ppb (18) | N/A | N/A | 3.0 ppb (4) | 16.0 ppb (12) | 0.3 ppb (3) | 17.0 μg/m3 (15) | 4.0 μg/m3 (17) | 18.0 | |
| April 3, 2020, 6 a.m. | N/A | N/A | 28.3 ppb (26) | N/A | N/A | 5.0 ppb (7) | 11.0 ppb (8) | 0.3 ppb (3) | 13.0 μg/m3 (12) | 5.0 μg/m3 (21) | 26.0 | |
| April 3, 2020, 5 a.m. | N/A | N/A | 30.2 ppb (28) | N/A | N/A | 5.0 ppb (7) | 9.0 ppb (7) | 0.3 ppb (3) | 18.0 μg/m3 (16) | 7.0 μg/m3 (29) | 29.0 | |
| April 3, 2020, 4 a.m. | N/A | N/A | 27.3 ppb (25) | N/A | N/A | 3.0 ppb (4) | 15.0 ppb (12) | 0.3 ppb (3) | 19.0 μg/m3 (17) | 3.0 μg/m3 (12) | 25.0 | |
| April 3, 2020, 3 a.m. | N/A | N/A | 26.1 ppb (24) | N/A | N/A | 2.0 ppb (3) | 19.0 ppb (15) | 0.2 ppb (2) | 22.0 μg/m3 (20) | 3.0 μg/m3 (12) | 24.0 | |
| April 3, 2020, 2 a.m. | N/A | N/A | 22.4 ppb (21) | N/A | N/A | 1.0 ppb (1) | 23.0 ppb (18) | 0.2 ppb (2) | 16.0 μg/m3 (15) | 0.0 μg/m3 (0) | 21.0 | |
| April 3, 2020, 1 a.m. | N/A | N/A | 14.9 ppb (14) | N/A | N/A | 1.0 ppb (1) | 27.0 ppb (21) | 0.2 ppb (2) | 10.0 μg/m3 (9) | 2.0 μg/m3 (8) | 21.0 | |
| April 3, 2020, midnight | N/A | N/A | 16.7 ppb (15) | N/A | N/A | 2.0 ppb (3) | 26.0 ppb (20) | 0.2 ppb (2) | 10.0 μg/m3 (9) | 2.0 μg/m3 (8) | 20.0 | |
| April 2, 2020, 11 p.m. | N/A | N/A | 16.6 ppb (15) | N/A | N/A | 3.0 ppb (4) | 26.0 ppb (20) | 0.2 ppb (2) | 13.0 μg/m3 (12) | 2.0 μg/m3 (8) | 20.0 | |
| April 2, 2020, 10 p.m. | N/A | N/A | 16.7 ppb (15) | N/A | N/A | 3.0 ppb (4) | 24.0 ppb (18) | 0.2 ppb (2) | 14.0 μg/m3 (13) | 2.0 μg/m3 (8) | 18.0 | |
| April 2, 2020, 9 p.m. | N/A | N/A | 23.5 ppb (22) | N/A | N/A | 4.0 ppb (6) | 23.0 ppb (18) | 0.3 ppb (3) | 20.0 μg/m3 (18) | 4.0 μg/m3 (17) | 22.0 | |
| April 2, 2020, 8 p.m. | N/A | N/A | 41.3 ppb (38) | N/A | N/A | 4.0 ppb (6) | 19.0 ppb (15) | 0.3 ppb (3) | 24.0 μg/m3 (22) | 6.0 μg/m3 (25) | 38.0 | |
| April 2, 2020, 7 p.m. | N/A | N/A | 93.3 ppb (92) | N/A | N/A | 7.0 ppb (10) | 10.0 ppb (8) | 0.4 ppb (4) | 41.0 μg/m3 (37) | 15.0 μg/m3 (56) | 92.0 | |
| April 2, 2020, 6 p.m. | N/A | N/A | 95.4 ppb (94) | N/A | N/A | 8.0 ppb (11) | 8.0 ppb (6) | 0.5 ppb (6) | 35.0 μg/m3 (32) | 14.0 μg/m3 (54) | 94.0 | |
| April 2, 2020, 5 p.m. | N/A | N/A | 97.2 ppb (96) | N/A | N/A | 6.0 ppb (9) | 5.0 ppb (4) | 0.4 ppb (4) | 34.0 μg/m3 (31) | 10.0 μg/m3 (42) | 96.0 | |
| April 2, 2020, 4 p.m. | N/A | N/A | 67.8 ppb (65) | N/A | N/A | 5.0 ppb (7) | 6.0 ppb (5) | 0.4 ppb (4) | N/A | 8.0 μg/m3 (33) | 65.0 | |
| April 2, 2020, 3 p.m. | N/A | N/A | 47.7 ppb (44) | N/A | N/A | 7.0 ppb (10) | 5.0 ppb (4) | 0.5 ppb (6) | N/A | 6.0 μg/m3 (25) | 44.0 | |
| April 2, 2020, 2 p.m. | N/A | N/A | 42.2 ppb (39) | N/A | N/A | 6.0 ppb (9) | 4.0 ppb (3) | 0.3 ppb (3) | N/A | 6.0 μg/m3 (25) | 39.0 | |
| April 2, 2020, 1 p.m. | N/A | N/A | 24.8 ppb (23) | N/A | N/A | 5.0 ppb (7) | 7.0 ppb (5) | 0.2 ppb (2) | N/A | 6.0 μg/m3 (25) | 25.0 | |
| April 2, 2020, noon | N/A | N/A | 27.0 ppb (25) | N/A | N/A | 7.0 ppb (10) | 6.0 ppb (5) | 0.3 ppb (3) | N/A | 6.0 μg/m3 (25) | 25.0 | |
| April 2, 2020, 11 a.m. | N/A | N/A | 19.8 ppb (18) | N/A | N/A | 6.0 ppb (9) | 10.0 ppb (8) | 0.2 ppb (2) | N/A | 3.0 μg/m3 (12) | 18.0 | |
| April 2, 2020, 10 a.m. | N/A | N/A | 19.0 ppb (18) | N/A | N/A | 4.0 ppb (6) | 13.0 ppb (10) | 0.2 ppb (2) | N/A | 5.0 μg/m3 (21) | 21.0 | |
| April 2, 2020, 9 a.m. | N/A | N/A | 41.2 ppb (38) | N/A | N/A | 6.0 ppb (9) | 3.0 ppb (2) | 0.5 ppb (6) | N/A | 7.0 μg/m3 (29) | 38.0 | |
| April 2, 2020, 8 a.m. | N/A | N/A | 32.9 ppb (30) | N/A | N/A | 7.0 ppb (10) | 5.0 ppb (4) | 0.3 ppb (3) | N/A | 4.0 μg/m3 (17) | 30.0 | |
| April 2, 2020, 7 a.m. | N/A | N/A | 41.2 ppb (38) | N/A | N/A | 7.0 ppb (10) | 3.0 ppb (2) | 0.4 ppb (4) | N/A | 6.0 μg/m3 (25) | 38.0 | |
| April 2, 2020, 6 a.m. | N/A | N/A | 31.6 ppb (29) | N/A | N/A | 5.0 ppb (7) | 8.0 ppb (6) | 0.3 ppb (3) | N/A | 4.0 μg/m3 (17) | 29.0 | |
| April 2, 2020, 5 a.m. | N/A | N/A | 36.3 ppb (34) | N/A | N/A | 6.0 ppb (9) | 5.0 ppb (4) | 0.3 ppb (3) | N/A | 4.0 μg/m3 (17) | 34.0 | |
| April 2, 2020, 4 a.m. | N/A | N/A | 17.0 ppb (16) | N/A | N/A | 2.0 ppb (3) | 20.0 ppb (15) | 0.2 ppb (2) | N/A | 0.0 μg/m3 (0) | 16.0 | |
| April 2, 2020, 3 a.m. | N/A | N/A | 8.3 ppb (8) | N/A | N/A | 1.0 ppb (1) | 29.0 ppb (22) | 0.2 ppb (2) | N/A | -1.0 μg/m3 (0) | 22.0 | |
| April 2, 2020, 2 a.m. | N/A | N/A | 2.5 ppb (2) | N/A | N/A | -1.0 ppb (0) | 35.0 ppb (27) | 0.2 ppb (2) | N/A | -1.0 μg/m3 (0) | 27.0 | |
| April 2, 2020, 1 a.m. | N/A | N/A | 3.3 ppb (3) | N/A | N/A | -1.0 ppb (0) | 36.0 ppb (28) | 0.2 ppb (2) | N/A | -2.0 μg/m3 (0) | 28.0 | |
| April 2, 2020, midnight | N/A | N/A | 4.5 ppb (4) | N/A | N/A | 0.0 ppb (0) | 36.0 ppb (28) | 0.2 ppb (2) | N/A | N/A | 28.0 | |
| April 1, 2020, 11 p.m. | N/A | N/A | 1.7 ppb (2) | N/A | N/A | -1.0 ppb (0) | 38.0 ppb (29) | 0.1 ppb (1) | N/A | -2.0 μg/m3 (0) | 29.0 | |
| April 1, 2020, 10 p.m. | N/A | N/A | 1.2 ppb (1) | N/A | N/A | -1.0 ppb (0) | 39.0 ppb (30) | 0.1 ppb (1) | N/A | 1.0 μg/m3 (4) | 30.0 | |
| April 1, 2020, 9 p.m. | N/A | N/A | 1.6 ppb (1) | N/A | N/A | -1.0 ppb (0) | 39.0 ppb (30) | 0.1 ppb (1) | N/A | 0.0 μg/m3 (0) | 30.0 | |
| April 1, 2020, 8 p.m. | N/A | N/A | 2.2 ppb (2) | N/A | N/A | -1.0 ppb (0) | 38.0 ppb (29) | 0.2 ppb (2) | N/A | -1.0 μg/m3 (0) | 29.0 | |
| April 1, 2020, 7 p.m. | N/A | N/A | 4.4 ppb (4) | N/A | N/A | -1.0 ppb (0) | 36.0 ppb (28) | 0.2 ppb (2) | 12.0 μg/m3 (11) | 4.0 μg/m3 (17) | 28.0 | |
| April 1, 2020, 6 p.m. | N/A | N/A | 46.9 ppb (43) | N/A | N/A | 3.0 ppb (4) | 20.0 ppb (15) | 0.3 ppb (3) | 26.0 μg/m3 (24) | 8.0 μg/m3 (33) | 43.0 | |
| April 1, 2020, 5 p.m. | N/A | N/A | 117.4 ppb (103) | N/A | N/A | 12.0 ppb (17) | 8.0 ppb (6) | 0.5 ppb (6) | 34.0 μg/m3 (31) | 17.0 μg/m3 (61) | 103.0 | |
| April 1, 2020, 4 p.m. | N/A | N/A | 182.1 ppb (116) | N/A | N/A | 13.0 ppb (19) | 4.0 ppb (3) | 0.6 ppb (7) | 38.0 μg/m3 (35) | 20.0 μg/m3 (67) | 116.0 | |
| April 1, 2020, 3 p.m. | N/A | N/A | 50.3 ppb (47) | N/A | N/A | 7.0 ppb (10) | 4.0 ppb (3) | 0.4 ppb (4) | 30.0 μg/m3 (27) | 6.0 μg/m3 (25) | 47.0 | |
| April 1, 2020, 2 p.m. | N/A | N/A | 40.3 ppb (37) | N/A | N/A | 7.0 ppb (10) | 4.0 ppb (3) | 0.3 ppb (3) | 16.0 μg/m3 (15) | 7.0 μg/m3 (29) | 37.0 | |
| April 1, 2020, 1 p.m. | N/A | N/A | 38.2 ppb (35) | N/A | N/A | 9.0 ppb (13) | 3.0 ppb (2) | N/A | 18.0 μg/m3 (16) | 4.0 μg/m3 (17) | 35.0 | |
| April 1, 2020, noon | N/A | N/A | 28.6 ppb (26) | N/A | N/A | 6.0 ppb (9) | N/A | 0.2 ppb (2) | 14.0 μg/m3 (13) | 4.0 μg/m3 (17) | 26.0 | |
| April 1, 2020, 11 a.m. | N/A | N/A | 23.3 ppb (22) | N/A | N/A | 6.0 ppb (9) | 10.0 ppb (8) | 0.2 ppb (2) | 14.0 μg/m3 (13) | 6.0 μg/m3 (25) | 25.0 | |
| April 1, 2020, 10 a.m. | N/A | N/A | 18.7 ppb (17) | N/A | N/A | 6.0 ppb (9) | 12.0 ppb (9) | 0.3 ppb (3) | 13.0 μg/m3 (12) | 7.0 μg/m3 (29) | 29.0 | |
| April 1, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (10) | 10.0 ppb (8) | 0.3 ppb (3) | 21.0 μg/m3 (19) | 8.0 μg/m3 (33) | 33.0 | |
| April 1, 2020, 8 a.m. | N/A | N/A | 20.8 ppb (19) | N/A | N/A | N/A | 12.0 ppb (9) | 0.3 ppb (3) | 18.0 μg/m3 (16) | 6.0 μg/m3 (25) | 25.0 | |
| April 1, 2020, 7 a.m. | N/A | N/A | 23.6 ppb (22) | N/A | N/A | 5.0 ppb (7) | 12.0 ppb (9) | 0.3 ppb (3) | 21.0 μg/m3 (19) | 6.0 μg/m3 (25) | 25.0 | |
| April 1, 2020, 6 a.m. | N/A | N/A | 19.9 ppb (18) | N/A | N/A | 4.0 ppb (6) | 15.0 ppb (12) | 0.3 ppb (3) | 16.0 μg/m3 (15) | 4.0 μg/m3 (17) | 18.0 | |
| April 1, 2020, 5 a.m. | N/A | N/A | 14.7 ppb (14) | N/A | N/A | 2.0 ppb (3) | 22.0 ppb (17) | 0.2 ppb (2) | 14.0 μg/m3 (13) | 2.0 μg/m3 (8) | 17.0 | |
| April 1, 2020, 4 a.m. | N/A | N/A | 5.4 ppb (5) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | 0.2 ppb (2) | 11.0 μg/m3 (10) | 1.0 μg/m3 (4) | 25.0 | |
| April 1, 2020, 3 a.m. | N/A | N/A | 5.3 ppb (5) | N/A | N/A | -1.0 ppb (0) | 32.0 ppb (25) | 0.2 ppb (2) | 12.0 μg/m3 (11) | 0.0 μg/m3 (0) | 25.0 | |
| April 1, 2020, 2 a.m. | N/A | N/A | 2.3 ppb (2) | N/A | N/A | -1.0 ppb (0) | 35.0 ppb (27) | 0.1 ppb (1) | 10.0 μg/m3 (9) | 0.0 μg/m3 (0) | 27.0 | |
| April 1, 2020, 1 a.m. | N/A | N/A | 2.1 ppb (2) | N/A | N/A | -1.0 ppb (0) | 36.0 ppb (28) | 0.1 ppb (1) | 10.0 μg/m3 (9) | 0.0 μg/m3 (0) | 28.0 | |
| April 1, 2020, midnight | N/A | N/A | 1.9 ppb (2) | N/A | N/A | -1.0 ppb (0) | 36.0 ppb (28) | 0.1 ppb (1) | 10.0 μg/m3 (9) | -1.0 μg/m3 (0) | 28.0 | |
| March 31, 2020, 11 p.m. | N/A | N/A | 2.8 ppb (3) | N/A | N/A | -1.0 ppb (0) | 35.0 ppb (27) | 0.1 ppb (1) | N/A | -2.0 μg/m3 (0) | 27.0 | |
| March 31, 2020, 10 p.m. | N/A | N/A | 2.8 ppb (3) | N/A | N/A | -1.0 ppb (0) | 35.0 ppb (27) | 0.1 ppb (1) | N/A | 0.0 μg/m3 (0) | 27.0 | |
| March 31, 2020, 9 p.m. | N/A | N/A | 3.4 ppb (3) | N/A | N/A | -1.0 ppb (0) | 35.0 ppb (27) | 0.1 ppb (1) | 14.0 μg/m3 (13) | 1.0 μg/m3 (4) | 27.0 | |
| March 31, 2020, 8 p.m. | N/A | N/A | 3.3 ppb (3) | N/A | N/A | -1.0 ppb (0) | 35.0 ppb (27) | 0.1 ppb (1) | 12.0 μg/m3 (11) | 0.0 μg/m3 (0) | 27.0 | |
| March 31, 2020, 7 p.m. | N/A | N/A | 3.0 ppb (3) | N/A | N/A | -1.0 ppb (0) | 36.0 ppb (28) | 0.1 ppb (1) | 12.0 μg/m3 (11) | 1.0 μg/m3 (4) | 28.0 | |
| March 31, 2020, 6 p.m. | N/A | N/A | 2.1 ppb (2) | N/A | N/A | -1.0 ppb (0) | 37.0 ppb (28) | 0.1 ppb (1) | 9.0 μg/m3 (8) | 4.0 μg/m3 (17) | 28.0 | |
| March 31, 2020, 5 p.m. | N/A | N/A | 2.8 ppb (3) | N/A | N/A | -1.0 ppb (0) | 38.0 ppb (29) | 0.1 ppb (1) | 16.0 μg/m3 (15) | 6.0 μg/m3 (25) | 29.0 | |
| March 31, 2020, 4 p.m. | N/A | N/A | 3.0 ppb (3) | N/A | N/A | -1.0 ppb (0) | 38.0 ppb (29) | 0.1 ppb (1) | 13.0 μg/m3 (12) | 1.0 μg/m3 (4) | 29.0 | |
| March 31, 2020, 3 p.m. | N/A | N/A | 4.6 ppb (4) | N/A | N/A | 0.0 ppb (0) | 37.0 ppb (28) | 0.1 ppb (1) | 15.0 μg/m3 (14) | 1.0 μg/m3 (4) | 28.0 | |
| March 31, 2020, 2 p.m. | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 0.0 ppb (0) | 39.0 ppb (30) | 0.1 ppb (1) | 7.0 μg/m3 (6) | -1.0 μg/m3 (0) | 30.0 | |
| March 31, 2020, 1 p.m. | N/A | N/A | 1.7 ppb (2) | N/A | N/A | 0.0 ppb (0) | 39.0 ppb (30) | 0.1 ppb (1) | 9.0 μg/m3 (8) | 0.0 μg/m3 (0) | 30.0 | |
| March 31, 2020, noon | N/A | N/A | 1.8 ppb (2) | N/A | N/A | 0.0 ppb (0) | 39.0 ppb (30) | 0.1 ppb (1) | 7.0 μg/m3 (6) | 1.0 μg/m3 (4) | 30.0 | |
| March 31, 2020, 11 a.m. | N/A | N/A | 1.6 ppb (1) | N/A | N/A | -1.0 ppb (0) | 39.0 ppb (30) | 0.1 ppb (1) | 8.0 μg/m3 (7) | 2.0 μg/m3 (8) | 30.0 | |
| March 31, 2020, 10 a.m. | N/A | N/A | 0.6 ppb (1) | N/A | N/A | -1.0 ppb (0) | 40.0 ppb (31) | 0.1 ppb (1) | 7.0 μg/m3 (6) | 4.0 μg/m3 (17) | 31.0 | |
| March 31, 2020, 9 a.m. | N/A | N/A | 2.6 ppb (2) | N/A | N/A | 1.0 ppb (1) | 37.0 ppb (28) | 0.1 ppb (1) | 10.0 μg/m3 (9) | 4.0 μg/m3 (17) | 28.0 | |
| March 31, 2020, 8 a.m. | N/A | N/A | 1.7 ppb (2) | N/A | N/A | 0.0 ppb (0) | 38.0 ppb (29) | 0.1 ppb (1) | 12.0 μg/m3 (11) | 2.0 μg/m3 (8) | 29.0 | |
| March 31, 2020, 7 a.m. | N/A | N/A | 1.2 ppb (1) | N/A | N/A | -1.0 ppb (0) | 39.0 ppb (30) | 0.1 ppb (1) | 11.0 μg/m3 (10) | -1.0 μg/m3 (0) | 30.0 | |
| March 31, 2020, 6 a.m. | N/A | N/A | 2.2 ppb (2) | N/A | N/A | 0.0 ppb (0) | 38.0 ppb (29) | 0.1 ppb (1) | 13.0 μg/m3 (12) | -2.0 μg/m3 (0) | 29.0 | |
| March 31, 2020, 5 a.m. | N/A | N/A | 1.9 ppb (2) | N/A | N/A | -1.0 ppb (0) | 38.0 ppb (29) | 0.1 ppb (1) | 11.0 μg/m3 (10) | 0.0 μg/m3 (0) | 29.0 | |
| March 31, 2020, 4 a.m. | N/A | N/A | 1.7 ppb (2) | N/A | N/A | -1.0 ppb (0) | 39.0 ppb (30) | 0.1 ppb (1) | 10.0 μg/m3 (9) | -1.0 μg/m3 (0) | 30.0 | |
| March 31, 2020, 3 a.m. | N/A | N/A | 1.4 ppb (1) | N/A | N/A | -1.0 ppb (0) | 39.0 ppb (30) | 0.1 ppb (1) | 10.0 μg/m3 (9) | -3.0 μg/m3 (0) | 30.0 | |
| March 31, 2020, 2 a.m. | N/A | N/A | 1.1 ppb (1) | N/A | N/A | -1.0 ppb (0) | 40.0 ppb (31) | 0.1 ppb (1) | 11.0 μg/m3 (10) | -3.0 μg/m3 (0) | 31.0 | |
| March 31, 2020, 1 a.m. | N/A | N/A | 1.4 ppb (1) | N/A | N/A | -1.0 ppb (0) | 40.0 ppb (31) | 0.1 ppb (1) | 8.0 μg/m3 (7) | -1.0 μg/m3 (0) | 31.0 | |
| March 31, 2020, midnight | N/A | N/A | 1.1 ppb (1) | N/A | N/A | -1.0 ppb (0) | 40.0 ppb (31) | 0.1 ppb (1) | 10.0 μg/m3 (9) | 0.0 μg/m3 (0) | 31.0 | |
| March 30, 2020, 11 p.m. | N/A | N/A | 1.1 ppb (1) | N/A | N/A | -1.0 ppb (0) | 40.0 ppb (31) | 0.1 ppb (1) | 11.0 μg/m3 (10) | 0.0 μg/m3 (0) | 31.0 | |
| March 30, 2020, 10 p.m. | N/A | N/A | 1.4 ppb (1) | N/A | N/A | -1.0 ppb (0) | 39.0 ppb (30) | 0.1 ppb (1) | 12.0 μg/m3 (11) | 0.0 μg/m3 (0) | 30.0 | |
| March 30, 2020, 9 p.m. | N/A | N/A | 0.8 ppb (1) | N/A | N/A | -1.0 ppb (0) | 38.0 ppb (29) | 0.1 ppb (1) | 9.0 μg/m3 (8) | -1.0 μg/m3 (0) | 29.0 | |
| March 30, 2020, 8 p.m. | N/A | N/A | 5.7 ppb (5) | N/A | N/A | 0.0 ppb (0) | 34.0 ppb (26) | 0.1 ppb (1) | 10.0 μg/m3 (9) | 1.0 μg/m3 (4) | 26.0 | |
| March 30, 2020, 7 p.m. | N/A | N/A | 30.3 ppb (28) | N/A | N/A | 2.0 ppb (3) | 24.0 ppb (18) | 0.2 ppb (2) | 24.0 μg/m3 (22) | 5.0 μg/m3 (21) | 28.0 | |
| March 30, 2020, 6 p.m. | N/A | N/A | 31.3 ppb (29) | N/A | N/A | 2.0 ppb (3) | 22.0 ppb (17) | 0.2 ppb (2) | 20.0 μg/m3 (18) | 9.0 μg/m3 (38) | 38.0 | |
| March 30, 2020, 5 p.m. | N/A | N/A | 81.3 ppb (79) | N/A | N/A | 6.0 ppb (9) | 10.0 ppb (8) | 0.3 ppb (3) | 27.0 μg/m3 (25) | 7.0 μg/m3 (29) | 79.0 | |
| March 30, 2020, 4 p.m. | N/A | N/A | 88.0 ppb (86) | N/A | N/A | 10.0 ppb (14) | 6.0 ppb (5) | 0.5 ppb (6) | 47.0 μg/m3 (43) | 16.0 μg/m3 (59) | 86.0 | |
| March 30, 2020, 3 p.m. | N/A | N/A | 48.9 ppb (45) | N/A | N/A | 7.0 ppb (10) | 5.0 ppb (4) | 0.4 ppb (4) | 31.0 μg/m3 (28) | 8.0 μg/m3 (33) | 45.0 | |
| March 30, 2020, 2 p.m. | N/A | N/A | 37.2 ppb (34) | N/A | N/A | 11.0 ppb (16) | 4.0 ppb (3) | 0.3 ppb (3) | 22.0 μg/m3 (20) | 6.0 μg/m3 (25) | 34.0 | |
| March 30, 2020, 1 p.m. | N/A | N/A | 51.7 ppb (48) | N/A | N/A | 10.0 ppb (14) | 2.0 ppb (2) | 0.2 ppb (2) | 19.0 μg/m3 (17) | 9.0 μg/m3 (38) | 48.0 | |
| March 30, 2020, noon | N/A | N/A | 47.2 ppb (44) | N/A | N/A | 10.0 ppb (14) | 4.0 ppb (3) | 0.2 ppb (2) | 24.0 μg/m3 (22) | 9.0 μg/m3 (38) | 44.0 | |
| March 30, 2020, 11 a.m. | N/A | N/A | 35.0 ppb (32) | N/A | N/A | 7.0 ppb (10) | 7.0 ppb (5) | 0.2 ppb (2) | 17.0 μg/m3 (15) | 6.0 μg/m3 (25) | 32.0 | |
| March 30, 2020, 10 a.m. | N/A | N/A | 15.6 ppb (14) | N/A | N/A | 5.0 ppb (7) | 21.0 ppb (16) | 0.1 ppb (1) | 18.0 μg/m3 (16) | 4.0 μg/m3 (17) | 17.0 | |
| March 30, 2020, 9 a.m. | N/A | N/A | 14.2 ppb (13) | N/A | N/A | 5.0 ppb (7) | 22.0 ppb (17) | 0.2 ppb (2) | N/A | 6.0 μg/m3 (25) | 25.0 | |
| March 30, 2020, 8 a.m. | N/A | N/A | 4.1 ppb (4) | N/A | N/A | 1.0 ppb (1) | 32.0 ppb (25) | 0.1 ppb (1) | 13.0 μg/m3 (12) | 5.0 μg/m3 (21) | 25.0 | |
| March 30, 2020, 7 a.m. | N/A | N/A | 7.2 ppb (7) | N/A | N/A | 1.0 ppb (1) | 29.0 ppb (22) | 0.2 ppb (2) | 14.0 μg/m3 (13) | 2.0 μg/m3 (8) | 22.0 | |
| March 30, 2020, 6 a.m. | N/A | N/A | 8.6 ppb (8) | N/A | N/A | 2.0 ppb (3) | 29.0 ppb (22) | 0.2 ppb (2) | 17.0 μg/m3 (15) | 1.0 μg/m3 (4) | 22.0 | |
| March 30, 2020, 5 a.m. | N/A | N/A | 7.6 ppb (7) | N/A | N/A | 1.0 ppb (1) | 31.0 ppb (24) | 0.1 ppb (1) | 15.0 μg/m3 (14) | 0.0 μg/m3 (0) | 24.0 | |
| March 30, 2020, 4 a.m. | N/A | N/A | 3.7 ppb (3) | N/A | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.1 ppb (1) | 16.0 μg/m3 (15) | 0.0 μg/m3 (0) | 27.0 | |
| March 30, 2020, 3 a.m. | N/A | N/A | 2.3 ppb (2) | N/A | N/A | -1.0 ppb (0) | 36.0 ppb (28) | 0.1 ppb (1) | 12.0 μg/m3 (11) | 0.0 μg/m3 (0) | 28.0 | |
| March 30, 2020, 2 a.m. | N/A | N/A | 1.4 ppb (1) | N/A | N/A | -1.0 ppb (0) | 37.0 ppb (28) | 0.1 ppb (1) | 11.0 μg/m3 (10) | 0.0 μg/m3 (0) | 28.0 | |
| March 30, 2020, 1 a.m. | N/A | N/A | 0.8 ppb (1) | N/A | N/A | -1.0 ppb (0) | 38.0 ppb (29) | 0.1 ppb (1) | 10.0 μg/m3 (9) | -1.0 μg/m3 (0) | 29.0 | |
| March 30, 2020, midnight | N/A | N/A | 1.3 ppb (1) | N/A | N/A | -1.0 ppb (0) | 37.0 ppb (28) | 0.1 ppb (1) | 14.0 μg/m3 (13) | -1.0 μg/m3 (0) | 28.0 | |
| March 29, 2020, 11 p.m. | N/A | N/A | 1.2 ppb (1) | N/A | N/A | -1.0 ppb (0) | 37.0 ppb (28) | 0.1 ppb (1) | 9.0 μg/m3 (8) | 1.0 μg/m3 (4) | 28.0 | |
| March 29, 2020, 10 p.m. | N/A | N/A | 5.7 ppb (5) | N/A | N/A | -1.0 ppb (0) | 36.0 ppb (28) | 0.1 ppb (1) | 10.0 μg/m3 (9) | 4.0 μg/m3 (17) | 28.0 | |
| March 29, 2020, 9 p.m. | N/A | N/A | 6.0 ppb (6) | N/A | N/A | -1.0 ppb (0) | 36.0 ppb (28) | 0.1 ppb (1) | 14.0 μg/m3 (13) | 6.0 μg/m3 (25) | 28.0 | |
| March 29, 2020, 8 p.m. | N/A | N/A | 6.1 ppb (6) | N/A | N/A | 0.0 ppb (0) | 36.0 ppb (28) | 0.1 ppb (1) | 11.0 μg/m3 (10) | 3.0 μg/m3 (12) | 28.0 | |
| March 29, 2020, 7 p.m. | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 0.0 ppb (0) | 36.0 ppb (28) | 0.1 ppb (1) | 12.0 μg/m3 (11) | 3.0 μg/m3 (12) | 28.0 | |
| March 29, 2020, 6 p.m. | N/A | N/A | 3.1 ppb (3) | N/A | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.1 ppb (1) | 10.0 μg/m3 (9) | 4.0 μg/m3 (17) | 27.0 | |
| March 29, 2020, 5 p.m. | N/A | N/A | 3.4 ppb (3) | N/A | N/A | 0.0 ppb (0) | 34.0 ppb (26) | 0.1 ppb (1) | 11.0 μg/m3 (10) | 3.0 μg/m3 (12) | 26.0 | |
| March 29, 2020, 4 p.m. | N/A | N/A | 1.4 ppb (1) | N/A | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.1 ppb (1) | 11.0 μg/m3 (10) | 3.0 μg/m3 (12) | 27.0 | |
| March 29, 2020, 3 p.m. | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | 0.1 ppb (1) | 16.0 μg/m3 (15) | 2.0 μg/m3 (8) | 25.0 | |
| March 29, 2020, 2 p.m. | N/A | N/A | 1.9 ppb (2) | N/A | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.1 ppb (1) | 10.0 μg/m3 (9) | 2.0 μg/m3 (8) | 27.0 | |
| March 29, 2020, 1 p.m. | N/A | N/A | 1.6 ppb (1) | N/A | N/A | 0.0 ppb (0) | 35.0 ppb (27) | N/A | 11.0 μg/m3 (10) | 2.0 μg/m3 (8) | 27.0 | |
| March 29, 2020, noon | N/A | N/A | 2.3 ppb (2) | N/A | N/A | 0.0 ppb (0) | N/A | 0.1 ppb (1) | 9.0 μg/m3 (8) | 1.0 μg/m3 (4) | 8.0 | |
| March 29, 2020, 11 a.m. | N/A | N/A | 8.5 ppb (8) | N/A | N/A | 3.0 ppb (4) | 25.0 ppb (19) | 0.1 ppb (1) | 11.0 μg/m3 (10) | 3.0 μg/m3 (12) | 19.0 | |
| March 29, 2020, 10 a.m. | N/A | N/A | 5.6 ppb (5) | N/A | N/A | 2.0 ppb (3) | 27.0 ppb (21) | 0.1 ppb (1) | 15.0 μg/m3 (14) | 4.0 μg/m3 (17) | 21.0 | |
| March 29, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | 0.1 ppb (1) | 9.0 μg/m3 (8) | 1.0 μg/m3 (4) | 23.0 | |
| March 29, 2020, 8 a.m. | N/A | N/A | 2.0 ppb (2) | N/A | N/A | N/A | 32.0 ppb (25) | 0.1 ppb (1) | 13.0 μg/m3 (12) | 0.0 μg/m3 (0) | 25.0 | |
| March 29, 2020, 7 a.m. | N/A | N/A | 4.4 ppb (4) | N/A | N/A | 1.0 ppb (1) | 31.0 ppb (24) | 0.1 ppb (1) | 15.0 μg/m3 (14) | 1.0 μg/m3 (4) | 24.0 | |
| March 29, 2020, 6 a.m. | N/A | N/A | 3.3 ppb (3) | N/A | N/A | 0.0 ppb (0) | 33.0 ppb (25) | 0.1 ppb (1) | 13.0 μg/m3 (12) | 4.0 μg/m3 (17) | 25.0 | |
| March 29, 2020, 5 a.m. | N/A | N/A | 2.0 ppb (2) | N/A | N/A | -1.0 ppb (0) | 34.0 ppb (26) | 0.1 ppb (1) | 12.0 μg/m3 (11) | 5.0 μg/m3 (21) | 26.0 | |
| March 29, 2020, 4 a.m. | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.1 ppb (1) | 10.0 μg/m3 (9) | 3.0 μg/m3 (12) | 27.0 | |
| March 29, 2020, 3 a.m. | N/A | N/A | 2.1 ppb (2) | N/A | N/A | -1.0 ppb (0) | 35.0 ppb (27) | 0.1 ppb (1) | 15.0 μg/m3 (14) | 1.0 μg/m3 (4) | 27.0 | |
| March 29, 2020, 2 a.m. | N/A | N/A | 1.6 ppb (1) | N/A | N/A | -1.0 ppb (0) | 36.0 ppb (28) | 0.1 ppb (1) | 10.0 μg/m3 (9) | 2.0 μg/m3 (8) | 28.0 | |
| March 29, 2020, 1 a.m. | N/A | N/A | 1.8 ppb (2) | N/A | N/A | -1.0 ppb (0) | 37.0 ppb (28) | 0.1 ppb (1) | 9.0 μg/m3 (8) | 2.0 μg/m3 (8) | 28.0 | |
| March 29, 2020, midnight | N/A | N/A | 1.5 ppb (1) | N/A | N/A | -1.0 ppb (0) | 37.0 ppb (28) | 0.1 ppb (1) | 11.0 μg/m3 (10) | 2.0 μg/m3 (8) | 28.0 | |
| March 28, 2020, 11 p.m. | N/A | N/A | 1.6 ppb (1) | N/A | N/A | -1.0 ppb (0) | 37.0 ppb (28) | 0.1 ppb (1) | 11.0 μg/m3 (10) | 2.0 μg/m3 (8) | 28.0 | |
| March 28, 2020, 10 p.m. | N/A | N/A | 1.5 ppb (1) | N/A | N/A | -1.0 ppb (0) | 37.0 ppb (28) | 0.1 ppb (1) | 8.0 μg/m3 (7) | 2.0 μg/m3 (8) | 28.0 | |
| March 28, 2020, 9 p.m. | N/A | N/A | 1.6 ppb (1) | N/A | N/A | -1.0 ppb (0) | 36.0 ppb (28) | 0.1 ppb (1) | 8.0 μg/m3 (7) | 0.0 μg/m3 (0) | 28.0 | |
| March 28, 2020, 8 p.m. | N/A | N/A | 1.5 ppb (1) | N/A | N/A | -1.0 ppb (0) | 35.0 ppb (27) | 0.1 ppb (1) | 18.0 μg/m3 (16) | 0.0 μg/m3 (0) | 27.0 | |
| March 28, 2020, 7 p.m. | N/A | N/A | 1.7 ppb (2) | N/A | N/A | -1.0 ppb (0) | 35.0 ppb (27) | 0.1 ppb (1) | 10.0 μg/m3 (9) | 1.0 μg/m3 (4) | 27.0 | |
| March 28, 2020, 6 p.m. | N/A | N/A | 2.6 ppb (2) | N/A | N/A | -1.0 ppb (0) | 33.0 ppb (25) | 0.1 ppb (1) | 10.0 μg/m3 (9) | 2.0 μg/m3 (8) | 25.0 | |
| March 28, 2020, 5 p.m. | N/A | N/A | 8.6 ppb (8) | N/A | N/A | 1.0 ppb (1) | 28.0 ppb (22) | 0.2 ppb (2) | 15.0 μg/m3 (14) | 2.0 μg/m3 (8) | 22.0 | |
| March 28, 2020, 4 p.m. | N/A | N/A | 6.6 ppb (6) | N/A | N/A | 2.0 ppb (3) | 27.0 ppb (21) | 0.2 ppb (2) | 15.0 μg/m3 (14) | 3.0 μg/m3 (12) | 21.0 | |
| March 28, 2020, 3 p.m. | N/A | N/A | 7.9 ppb (7) | N/A | N/A | 2.0 ppb (3) | 25.0 ppb (19) | 0.2 ppb (2) | 16.0 μg/m3 (15) | 3.0 μg/m3 (12) | 19.0 | |
| March 28, 2020, 2 p.m. | N/A | N/A | 8.3 ppb (8) | N/A | N/A | 3.0 ppb (4) | 24.0 ppb (18) | 0.1 ppb (1) | 16.0 μg/m3 (15) | 2.0 μg/m3 (8) | 18.0 | |
| March 28, 2020, 1 p.m. | N/A | N/A | 4.8 ppb (4) | N/A | N/A | 2.0 ppb (3) | 28.0 ppb (22) | 0.1 ppb (1) | 9.0 μg/m3 (8) | 2.0 μg/m3 (8) | 22.0 | |
| March 28, 2020, noon | N/A | N/A | 3.5 ppb (3) | N/A | N/A | 1.0 ppb (1) | 30.0 ppb (23) | 0.1 ppb (1) | 11.0 μg/m3 (10) | 3.0 μg/m3 (12) | 23.0 | |
| March 28, 2020, 11 a.m. | N/A | N/A | 2.3 ppb (2) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | 0.1 ppb (1) | 10.0 μg/m3 (9) | 4.0 μg/m3 (17) | 25.0 | |
| March 28, 2020, 10 a.m. | N/A | N/A | 2.2 ppb (2) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | 0.1 ppb (1) | 9.0 μg/m3 (8) | 2.0 μg/m3 (8) | 24.0 | |
| March 28, 2020, 9 a.m. | N/A | N/A | 2.2 ppb (2) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | 0.1 ppb (1) | N/A | 1.0 μg/m3 (4) | 23.0 | |
| March 28, 2020, 8 a.m. | N/A | N/A | 1.6 ppb (1) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | 0.1 ppb (1) | 11.0 μg/m3 (10) | 0.0 μg/m3 (0) | 23.0 | |
| March 28, 2020, 7 a.m. | N/A | N/A | 2.1 ppb (2) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | 0.1 ppb (1) | 8.0 μg/m3 (7) | 0.0 μg/m3 (0) | 23.0 | |
| March 28, 2020, 6 a.m. | N/A | N/A | 2.7 ppb (3) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | 0.1 ppb (1) | 9.0 μg/m3 (8) | 0.0 μg/m3 (0) | 23.0 | |
| March 28, 2020, 5 a.m. | N/A | N/A | 3.2 ppb (3) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | 0.1 ppb (1) | 8.0 μg/m3 (7) | 0.0 μg/m3 (0) | 23.0 | |
| March 28, 2020, 4 a.m. | N/A | N/A | 3.5 ppb (3) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | 0.1 ppb (1) | 10.0 μg/m3 (9) | 1.0 μg/m3 (4) | 23.0 | |
| March 28, 2020, 3 a.m. | N/A | N/A | 3.1 ppb (3) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | 0.2 ppb (2) | 12.0 μg/m3 (11) | 2.0 μg/m3 (8) | 25.0 | |
| March 28, 2020, 2 a.m. | N/A | N/A | 1.3 ppb (1) | N/A | N/A | -1.0 ppb (0) | 35.0 ppb (27) | 0.1 ppb (1) | 9.0 μg/m3 (8) | 2.0 μg/m3 (8) | 27.0 | |
| March 28, 2020, 1 a.m. | N/A | N/A | 2.2 ppb (2) | N/A | N/A | -1.0 ppb (0) | 35.0 ppb (27) | 0.2 ppb (2) | 12.0 μg/m3 (11) | 1.0 μg/m3 (4) | 27.0 | |
| March 28, 2020, midnight | N/A | N/A | 2.0 ppb (2) | N/A | N/A | -1.0 ppb (0) | 34.0 ppb (26) | 0.2 ppb (2) | 16.0 μg/m3 (15) | -2.0 μg/m3 (0) | 26.0 | |
| March 27, 2020, 11 p.m. | N/A | N/A | 1.5 ppb (1) | N/A | N/A | -1.0 ppb (0) | 33.0 ppb (25) | 0.1 ppb (1) | 12.0 μg/m3 (11) | 1.0 μg/m3 (4) | 25.0 | |
| March 27, 2020, 10 p.m. | N/A | N/A | 1.6 ppb (1) | N/A | N/A | -1.0 ppb (0) | 33.0 ppb (25) | 0.1 ppb (1) | 11.0 μg/m3 (10) | 0.0 μg/m3 (0) | 25.0 | |
| March 27, 2020, 9 p.m. | N/A | N/A | 2.0 ppb (2) | N/A | N/A | -1.0 ppb (0) | 32.0 ppb (25) | 0.1 ppb (1) | 12.0 μg/m3 (11) | -1.0 μg/m3 (0) | 25.0 | |
| March 27, 2020, 8 p.m. | N/A | N/A | 2.1 ppb (2) | N/A | N/A | -1.0 ppb (0) | 32.0 ppb (25) | 0.1 ppb (1) | 13.0 μg/m3 (12) | 2.0 μg/m3 (8) | 25.0 | |
| March 27, 2020, 7 p.m. | N/A | N/A | 1.8 ppb (2) | N/A | N/A | -1.0 ppb (0) | 31.0 ppb (24) | 0.1 ppb (1) | 18.0 μg/m3 (16) | 2.0 μg/m3 (8) | 24.0 | |
| March 27, 2020, 6 p.m. | N/A | N/A | 2.4 ppb (2) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | 0.1 ppb (1) | 16.0 μg/m3 (15) | 0.0 μg/m3 (0) | 23.0 | |
| March 27, 2020, 5 p.m. | N/A | N/A | 6.9 ppb (6) | N/A | N/A | 1.0 ppb (1) | 27.0 ppb (21) | 0.1 ppb (1) | 16.0 μg/m3 (15) | 4.0 μg/m3 (17) | 21.0 | |
| March 27, 2020, 4 p.m. | N/A | N/A | 30.6 ppb (28) | N/A | N/A | 9.0 ppb (13) | 15.0 ppb (12) | 0.4 ppb (4) | 33.0 μg/m3 (30) | 9.0 μg/m3 (38) | 38.0 | |
| March 27, 2020, 3 p.m. | N/A | N/A | 50.4 ppb (47) | N/A | N/A | 14.0 ppb (20) | 4.0 ppb (3) | 0.5 ppb (6) | 43.0 μg/m3 (39) | 12.0 μg/m3 (50) | 50.0 |