Lima (Pine Run) OH, US: 40.771, -84.0539
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| April 22, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 13.6 μg/m3 (55) | 55.0 | |
| April 22, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 18.0 ppb (17) | N/A | N/A | 4.6 μg/m3 (20) | 20.0 | |
| April 22, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 20.0 ppb (19) | N/A | N/A | 3.9 μg/m3 (17) | 19.0 | |
| April 22, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 25.0 ppb (24) | N/A | N/A | 5.1 μg/m3 (22) | 24.0 | |
| April 22, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 29.0 ppb (27) | N/A | N/A | 6.5 μg/m3 (28) | 28.0 | |
| April 22, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (29) | N/A | N/A | 8.5 μg/m3 (36) | 36.0 | |
| April 22, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 34.0 ppb (32) | N/A | N/A | 7.0 μg/m3 (30) | 32.0 | |
| April 22, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (30) | N/A | N/A | 5.5 μg/m3 (23) | 30.0 | |
| April 22, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 36.0 ppb (34) | N/A | N/A | 2.5 μg/m3 (11) | 34.0 | |
| April 22, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 36.0 ppb (34) | N/A | N/A | 4.6 μg/m3 (20) | 34.0 | |
| April 22, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 35.0 ppb (33) | N/A | N/A | 5.2 μg/m3 (22) | 33.0 | |
| April 21, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 39.0 ppb (37) | N/A | N/A | 1.7 μg/m3 (8) | 37.0 | |
| April 21, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 42.0 ppb (39) | N/A | N/A | 3.0 μg/m3 (13) | 39.0 | |
| April 21, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 43.0 ppb (40) | N/A | N/A | 6.1 μg/m3 (26) | 40.0 | |
| April 21, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 45.0 ppb (42) | N/A | N/A | 7.0 μg/m3 (30) | 42.0 | |
| April 21, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 44.0 ppb (41) | N/A | N/A | 2.7 μg/m3 (12) | 41.0 | |
| April 21, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 43.0 ppb (40) | N/A | N/A | 2.2 μg/m3 (10) | 40.0 | |
| April 21, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 42.0 ppb (39) | N/A | N/A | 0.5 μg/m3 (3) | 39.0 | |
| April 21, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 42.0 ppb (39) | N/A | N/A | 3.5 μg/m3 (15) | 39.0 | |
| April 21, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 40.0 ppb (38) | N/A | N/A | 5.9 μg/m3 (25) | 38.0 | |
| April 21, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 36.0 ppb (34) | N/A | N/A | 4.6 μg/m3 (20) | 34.0 | |
| April 21, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 33.0 ppb (31) | N/A | N/A | 8.1 μg/m3 (34) | 34.0 | |
| April 21, 2021, noon | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (28) | N/A | N/A | 5.3 μg/m3 (23) | 28.0 | |
| April 21, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (28) | N/A | N/A | 7.8 μg/m3 (33) | 33.0 | |
| April 21, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 6.8 μg/m3 (29) | 29.0 | |
| April 21, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 34.0 ppb (32) | N/A | N/A | 3.1 μg/m3 (13) | 32.0 | |
| April 21, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 36.0 ppb (34) | N/A | N/A | 3.4 μg/m3 (15) | 34.0 | |
| April 21, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 37.0 ppb (35) | N/A | N/A | 4.8 μg/m3 (20) | 35.0 | |
| April 21, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 37.0 ppb (35) | N/A | N/A | 2.2 μg/m3 (10) | 35.0 | |
| April 21, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 38.0 ppb (36) | N/A | N/A | 0.9 μg/m3 (4) | 36.0 | |
| April 21, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 35.0 ppb (33) | N/A | N/A | 2.3 μg/m3 (10) | 33.0 | |
| April 21, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | N/A | 2.9 μg/m3 (13) | 34.0 | |
| April 21, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 38.0 ppb (36) | N/A | N/A | 2.5 μg/m3 (11) | 36.0 | |
| April 21, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 37.0 ppb (35) | N/A | N/A | 0.6 μg/m3 (3) | 35.0 | |
| April 21, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 35.0 ppb (33) | N/A | N/A | -0.9 μg/m3 (0) | 33.0 | |
| April 20, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (28) | N/A | N/A | -2.1 μg/m3 (0) | 28.0 | |
| April 20, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 29.0 ppb (27) | N/A | N/A | -0.6 μg/m3 (0) | 27.0 | |
| April 20, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (28) | N/A | N/A | 1.3 μg/m3 (6) | 28.0 | |
| April 20, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (29) | N/A | N/A | 1.5 μg/m3 (7) | 29.0 | |
| April 20, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (30) | N/A | N/A | 2.3 μg/m3 (10) | 30.0 | |
| April 20, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (28) | N/A | N/A | 2.7 μg/m3 (12) | 28.0 | |
| April 20, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (30) | N/A | N/A | 0.6 μg/m3 (3) | 30.0 | |
| April 20, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (30) | N/A | N/A | 1.4 μg/m3 (6) | 30.0 | |
| April 20, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (29) | N/A | N/A | 2.1 μg/m3 (9) | 29.0 | |
| April 20, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (28) | N/A | N/A | 2.0 μg/m3 (9) | 28.0 | |
| April 20, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (26) | N/A | N/A | 0.7 μg/m3 (3) | 26.0 | |
| April 20, 2021, noon | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (26) | N/A | N/A | -0.6 μg/m3 (0) | 26.0 | |
| April 20, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (26) | N/A | N/A | 1.0 μg/m3 (5) | 26.0 | |
| April 20, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 1.9 μg/m3 (8) | 8.0 | |
| April 20, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (26) | N/A | N/A | 0.5 μg/m3 (3) | 26.0 | |
| April 20, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (26) | N/A | N/A | -0.3 μg/m3 (0) | 26.0 | |
| April 20, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 29.0 ppb (27) | N/A | N/A | -0.2 μg/m3 (0) | 27.0 | |
| April 20, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (26) | N/A | N/A | -2.7 μg/m3 (0) | 26.0 | |
| April 20, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 29.0 ppb (27) | N/A | N/A | -0.5 μg/m3 (0) | 27.0 | |
| April 20, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 33.0 ppb (31) | N/A | N/A | 3.2 μg/m3 (14) | 31.0 | |
| April 20, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (32) | N/A | N/A | 1.8 μg/m3 (8) | 32.0 | |
| April 20, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 35.0 ppb (33) | N/A | N/A | 1.7 μg/m3 (8) | 33.0 | |
| April 20, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 37.0 ppb (35) | N/A | N/A | 4.3 μg/m3 (18) | 35.0 | |
| April 20, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 34.0 ppb (32) | N/A | N/A | 6.8 μg/m3 (29) | 32.0 | |
| April 19, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 34.0 ppb (32) | N/A | N/A | 8.1 μg/m3 (34) | 34.0 | |
| April 19, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 50.0 ppb (47) | N/A | N/A | 4.5 μg/m3 (19) | 47.0 | |
| April 19, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 48.0 ppb (45) | N/A | N/A | 5.9 μg/m3 (25) | 45.0 | |
| April 19, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 48.0 ppb (45) | N/A | N/A | 5.2 μg/m3 (22) | 45.0 | |
| April 19, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 48.0 ppb (45) | N/A | N/A | 3.0 μg/m3 (13) | 45.0 | |
| April 19, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 47.0 ppb (44) | N/A | N/A | 4.5 μg/m3 (19) | 44.0 | |
| April 19, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 45.0 ppb (42) | N/A | N/A | 6.4 μg/m3 (27) | 42.0 | |
| April 19, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 45.0 ppb (42) | N/A | N/A | 9.6 μg/m3 (40) | 42.0 | |
| April 19, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 43.0 ppb (40) | N/A | N/A | N/A | 40.0 | |
| April 19, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 40.0 ppb (38) | N/A | N/A | N/A | 38.0 | |
| April 19, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 35.0 ppb (33) | N/A | N/A | 7.2 μg/m3 (31) | 33.0 | |
| April 19, 2021, noon | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (30) | N/A | N/A | 10.5 μg/m3 (44) | 44.0 | |
| April 19, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (26) | N/A | N/A | 6.6 μg/m3 (28) | 28.0 | |
| April 19, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 4.2 μg/m3 (18) | 18.0 | |
| April 19, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 17.0 ppb (16) | N/A | N/A | 5.6 μg/m3 (24) | 24.0 | |
| April 19, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 19.0 ppb (18) | N/A | N/A | 8.3 μg/m3 (35) | 35.0 | |
| April 19, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 18.0 ppb (17) | N/A | N/A | 7.3 μg/m3 (31) | 31.0 | |
| April 19, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 16.0 ppb (15) | N/A | N/A | 7.8 μg/m3 (33) | 33.0 | |
| April 19, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 13.0 ppb (13) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| April 19, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 15.0 ppb (14) | N/A | N/A | 9.3 μg/m3 (39) | 39.0 | |
| April 19, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (17) | N/A | N/A | 11.5 μg/m3 (48) | 48.0 | |
| April 19, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 22.0 ppb (21) | N/A | N/A | 6.9 μg/m3 (29) | 29.0 | |
| April 19, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 26.0 ppb (25) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| April 19, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 36.0 ppb (34) | N/A | N/A | 1.2 μg/m3 (5) | 34.0 | |
| April 18, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 43.0 ppb (40) | N/A | N/A | 4.0 μg/m3 (17) | 40.0 | |
| April 18, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 44.0 ppb (41) | N/A | N/A | 4.5 μg/m3 (19) | 41.0 | |
| April 18, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 44.0 ppb (41) | N/A | N/A | 4.0 μg/m3 (17) | 41.0 | |
| April 18, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 50.0 ppb (47) | N/A | N/A | 2.3 μg/m3 (10) | 47.0 | |
| April 18, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 52.0 ppb (49) | N/A | N/A | 1.8 μg/m3 (8) | 49.0 | |
| April 18, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 52.0 ppb (49) | N/A | N/A | 1.3 μg/m3 (6) | 49.0 | |
| April 18, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 49.0 ppb (46) | N/A | N/A | 2.3 μg/m3 (10) | 46.0 | |
| April 18, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 46.0 ppb (43) | N/A | N/A | 1.5 μg/m3 (7) | 43.0 | |
| April 18, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 40.0 ppb (38) | N/A | N/A | 2.4 μg/m3 (10) | 38.0 | |
| April 18, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 37.0 ppb (35) | N/A | N/A | 3.9 μg/m3 (17) | 35.0 | |
| April 18, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 34.0 ppb (32) | N/A | N/A | 3.6 μg/m3 (16) | 32.0 | |
| April 18, 2021, noon | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (26) | N/A | N/A | 5.0 μg/m3 (21) | 26.0 | |
| April 18, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 23.0 ppb (22) | N/A | N/A | 7.8 μg/m3 (33) | 33.0 | |
| April 18, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 6.9 μg/m3 (29) | 29.0 | |
| April 18, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 9.0 ppb (9) | N/A | N/A | 6.1 μg/m3 (26) | 26.0 | |
| April 18, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 7.0 ppb (7) | N/A | N/A | 6.6 μg/m3 (28) | 28.0 | |
| April 18, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 8.0 ppb (8) | N/A | N/A | 9.4 μg/m3 (40) | 40.0 | |
| April 18, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 7.0 ppb (7) | N/A | N/A | 13.4 μg/m3 (54) | 54.0 | |
| April 18, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 12.0 ppb (12) | N/A | N/A | 9.5 μg/m3 (40) | 40.0 | |
| April 18, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 13.0 ppb (13) | N/A | N/A | 9.9 μg/m3 (42) | 42.0 | |
| April 18, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (16) | N/A | N/A | 7.6 μg/m3 (32) | 32.0 | |
| April 18, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 21.0 ppb (20) | N/A | N/A | 8.6 μg/m3 (36) | 36.0 | |
| April 18, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 25.0 ppb (24) | N/A | N/A | 8.2 μg/m3 (35) | 35.0 | |
| April 18, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 26.0 ppb (25) | N/A | N/A | 4.1 μg/m3 (18) | 25.0 | |
| April 17, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 36.0 ppb (34) | N/A | N/A | 4.1 μg/m3 (18) | 34.0 | |
| April 17, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 38.0 ppb (36) | N/A | N/A | 5.9 μg/m3 (25) | 36.0 | |
| April 17, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 39.0 ppb (37) | N/A | N/A | 5.9 μg/m3 (25) | 37.0 | |
| April 17, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 40.0 ppb (38) | N/A | N/A | 5.5 μg/m3 (23) | 38.0 | |
| April 17, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 39.0 ppb (37) | N/A | N/A | 5.2 μg/m3 (22) | 37.0 | |
| April 17, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 36.0 ppb (34) | N/A | N/A | 3.0 μg/m3 (13) | 34.0 | |
| April 17, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 33.0 ppb (31) | N/A | N/A | 5.7 μg/m3 (24) | 31.0 | |
| April 17, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (28) | N/A | N/A | 9.4 μg/m3 (40) | 40.0 | |
| April 17, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 26.0 ppb (25) | N/A | N/A | 8.1 μg/m3 (34) | 34.0 | |
| April 17, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 23.0 ppb (22) | N/A | N/A | 6.6 μg/m3 (28) | 28.0 | |
| April 17, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 22.0 ppb (21) | N/A | N/A | 5.6 μg/m3 (24) | 24.0 | |
| April 17, 2021, noon | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 20.0 ppb (19) | N/A | N/A | 4.2 μg/m3 (18) | 19.0 | |
| April 17, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 9.0 ppb (9) | N/A | N/A | 5.4 μg/m3 (23) | 23.0 | |
| April 17, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 5.6 μg/m3 (24) | 24.0 | |
| April 17, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 13.0 ppb (13) | N/A | N/A | 5.2 μg/m3 (22) | 22.0 | |
| April 17, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 17.0 ppb (16) | N/A | N/A | 2.9 μg/m3 (13) | 16.0 | |
| April 17, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 18.0 ppb (17) | N/A | N/A | 5.1 μg/m3 (22) | 22.0 | |
| April 17, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 18.0 ppb (17) | N/A | N/A | 3.8 μg/m3 (16) | 17.0 | |
| April 17, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 23.0 ppb (22) | N/A | N/A | 1.7 μg/m3 (8) | 22.0 | |
| April 17, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 24.0 ppb (23) | N/A | N/A | 3.9 μg/m3 (17) | 23.0 | |
| April 17, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (23) | N/A | N/A | 5.2 μg/m3 (22) | 23.0 | |
| April 17, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (26) | N/A | N/A | 5.6 μg/m3 (24) | 26.0 | |
| April 17, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 29.0 ppb (27) | N/A | N/A | 6.1 μg/m3 (26) | 27.0 | |
| April 17, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 34.0 ppb (32) | N/A | N/A | 3.6 μg/m3 (16) | 32.0 | |
| April 16, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 40.0 ppb (38) | N/A | N/A | 2.3 μg/m3 (10) | 38.0 | |
| April 16, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 41.0 ppb (38) | N/A | N/A | 1.6 μg/m3 (7) | 38.0 | |
| April 16, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 41.0 ppb (38) | N/A | N/A | 2.1 μg/m3 (9) | 38.0 | |
| April 16, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 40.0 ppb (38) | N/A | N/A | 3.0 μg/m3 (13) | 38.0 | |
| April 16, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 38.0 ppb (36) | N/A | N/A | 1.8 μg/m3 (8) | 36.0 | |
| April 16, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 35.0 ppb (33) | N/A | N/A | 0.3 μg/m3 (2) | 33.0 | |
| April 16, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (30) | N/A | N/A | 0.9 μg/m3 (4) | 30.0 | |
| April 16, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 29.0 ppb (27) | N/A | N/A | 1.7 μg/m3 (8) | 27.0 | |
| April 16, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 27.0 ppb (25) | N/A | N/A | 1.3 μg/m3 (6) | 25.0 | |
| April 16, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 26.0 ppb (25) | N/A | N/A | 1.9 μg/m3 (8) | 25.0 | |
| April 16, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 26.0 ppb (25) | N/A | N/A | 0.4 μg/m3 (2) | 25.0 | |
| April 16, 2021, noon | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 22.0 ppb (21) | N/A | N/A | 0.0 μg/m3 (0) | 21.0 | |
| April 16, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 15.0 ppb (14) | N/A | N/A | 2.6 μg/m3 (11) | 14.0 | |
| April 16, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 3.4 μg/m3 (15) | 15.0 | |
| April 16, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 21.0 ppb (20) | N/A | N/A | 0.4 μg/m3 (2) | 20.0 | |
| April 16, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 24.0 ppb (23) | N/A | N/A | 1.0 μg/m3 (5) | 23.0 | |
| April 16, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 23.0 ppb (22) | N/A | N/A | -0.4 μg/m3 (0) | 22.0 | |
| April 16, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 27.0 ppb (25) | N/A | N/A | -1.7 μg/m3 (0) | 25.0 | |
| April 16, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (26) | N/A | N/A | 1.3 μg/m3 (6) | 26.0 | |
| April 16, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (28) | N/A | N/A | 2.9 μg/m3 (13) | 28.0 | |
| April 16, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (29) | N/A | N/A | 2.3 μg/m3 (10) | 29.0 | |
| April 16, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 29.0 ppb (27) | N/A | N/A | 2.7 μg/m3 (12) | 27.0 | |
| April 16, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 29.0 ppb (27) | N/A | N/A | 1.7 μg/m3 (8) | 27.0 | |
| April 16, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (26) | N/A | N/A | 0.0 μg/m3 (0) | 26.0 | |
| April 15, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (26) | N/A | N/A | -0.4 μg/m3 (0) | 26.0 | |
| April 15, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 25.0 ppb (24) | N/A | N/A | -1.1 μg/m3 (0) | 24.0 | |
| April 15, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 25.0 ppb (24) | N/A | N/A | 1.1 μg/m3 (5) | 24.0 | |
| April 15, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 24.0 ppb (23) | N/A | N/A | 0.6 μg/m3 (3) | 23.0 | |
| April 15, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 21.0 ppb (20) | N/A | N/A | 0.0 μg/m3 (0) | 20.0 | |
| April 15, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 19.0 ppb (18) | N/A | N/A | 2.4 μg/m3 (10) | 18.0 | |
| April 15, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 20.0 ppb (19) | N/A | N/A | 4.0 μg/m3 (17) | 19.0 | |
| April 15, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 21.0 ppb (20) | N/A | N/A | 1.1 μg/m3 (5) | 20.0 | |
| April 15, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 22.0 ppb (21) | N/A | N/A | 1.7 μg/m3 (8) | 21.0 | |
| April 15, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 21.0 ppb (20) | N/A | N/A | 2.7 μg/m3 (12) | 20.0 | |
| April 15, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 20.0 ppb (19) | N/A | N/A | 3.2 μg/m3 (14) | 19.0 | |
| April 15, 2021, noon | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 19.0 ppb (18) | N/A | N/A | 2.9 μg/m3 (13) | 18.0 | |
| April 15, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 18.0 ppb (17) | N/A | N/A | 0.7 μg/m3 (3) | 17.0 |