Rivton (Shortite Dr) WY, US: 43.024214, -108.363703
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| April 21, 2021, 4 p.m. | 0.9 ppb (1) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 45.0 ppb (42) | N/A | 6.0 μg/m3 (6) | 5.0 μg/m3 (21) | 42.0 | |
| April 21, 2021, 3 p.m. | 1.5 ppb (2) | 0.4 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 38.0 ppb (36) | N/A | 9.0 μg/m3 (9) | 3.0 μg/m3 (13) | 36.0 | |
| April 21, 2021, 2 p.m. | 2.7 ppb (3) | 0.8 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 31.0 ppb (29) | N/A | 10.0 μg/m3 (10) | 5.0 μg/m3 (21) | 29.0 | |
| April 21, 2021, 1 p.m. | 2.8 ppb (3) | 0.8 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 20.0 ppb (19) | N/A | 7.0 μg/m3 (7) | 4.0 μg/m3 (17) | 19.0 | |
| April 21, 2021, noon | 3.5 ppb (4) | 0.5 ppb (1) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 15.0 ppb (14) | N/A | 7.0 μg/m3 (7) | 4.0 μg/m3 (17) | 17.0 | |
| April 21, 2021, 11 a.m. | 2.6 ppb (3) | 0.2 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 16.0 ppb (15) | N/A | 8.0 μg/m3 (8) | 3.0 μg/m3 (13) | 15.0 | |
| April 21, 2021, 10 a.m. | 2.2 ppb (3) | 0.2 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 19.0 ppb (18) | N/A | 6.0 μg/m3 (6) | 2.0 μg/m3 (9) | 18.0 | |
| April 21, 2021, 9 a.m. | 2.7 ppb (3) | 0.2 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 23.0 ppb (22) | N/A | 5.0 μg/m3 (5) | 3.0 μg/m3 (13) | 22.0 | |
| April 21, 2021, 8 a.m. | 0.9 ppb (1) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 26.0 ppb (25) | N/A | 5.0 μg/m3 (5) | 3.0 μg/m3 (13) | 25.0 | |
| April 21, 2021, 7 a.m. | 1.1 ppb (2) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 28.0 ppb (26) | N/A | 6.0 μg/m3 (6) | 3.0 μg/m3 (13) | 26.0 | |
| April 21, 2021, 6 a.m. | 1.9 ppb (2) | 0.2 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 29.0 ppb (27) | N/A | 10.0 μg/m3 (10) | 4.0 μg/m3 (17) | 27.0 | |
| April 21, 2021, 5 a.m. | 2.2 ppb (3) | 0.1 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 31.0 ppb (29) | N/A | 10.0 μg/m3 (10) | 3.0 μg/m3 (13) | 29.0 | |
| April 21, 2021, 4 a.m. | 2.2 ppb (3) | 0.1 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 35.0 ppb (33) | N/A | 5.0 μg/m3 (5) | 4.0 μg/m3 (17) | 33.0 | |
| April 21, 2021, 3 a.m. | 2.2 ppb (3) | 0.2 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 40.0 ppb (38) | N/A | 6.0 μg/m3 (6) | 6.0 μg/m3 (25) | 38.0 | |
| April 21, 2021, 2 a.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 42.0 ppb (39) | N/A | 6.0 μg/m3 (6) | 6.0 μg/m3 (25) | 39.0 | |
| April 21, 2021, 1 a.m. | 1.1 ppb (2) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 44.0 ppb (41) | N/A | 6.0 μg/m3 (6) | 4.0 μg/m3 (17) | 41.0 | |
| April 21, 2021, midnight | 0.6 ppb (1) | 0.1 ppb (1) | N/A | 0.0 ppb (0) | N/A | 1.0 ppb (2) | 45.0 ppb (42) | N/A | 8.0 μg/m3 (8) | 4.0 μg/m3 (17) | 42.0 | |
| April 20, 2021, 11 p.m. | 0.6 ppb (1) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 46.0 ppb (43) | N/A | 7.0 μg/m3 (7) | 3.0 μg/m3 (13) | 43.0 | |
| April 20, 2021, 10 p.m. | 0.8 ppb (1) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 45.0 ppb (42) | N/A | 7.0 μg/m3 (7) | 2.0 μg/m3 (9) | 42.0 | |
| April 20, 2021, 9 p.m. | 0.8 ppb (1) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 45.0 ppb (42) | N/A | 6.0 μg/m3 (6) | 1.0 μg/m3 (5) | 42.0 | |
| April 20, 2021, 8 p.m. | 0.8 ppb (1) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 45.0 ppb (42) | N/A | 3.0 μg/m3 (3) | 4.0 μg/m3 (17) | 42.0 | |
| April 20, 2021, 7 p.m. | 0.9 ppb (1) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 44.0 ppb (41) | N/A | 2.0 μg/m3 (2) | 6.0 μg/m3 (25) | 41.0 | |
| April 20, 2021, 6 p.m. | 1.0 ppb (1) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 44.0 ppb (41) | N/A | 6.0 μg/m3 (6) | 4.0 μg/m3 (17) | 41.0 | |
| April 20, 2021, 5 p.m. | 1.2 ppb (2) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 42.0 ppb (39) | N/A | 9.0 μg/m3 (9) | 5.0 μg/m3 (21) | 39.0 | |
| April 20, 2021, 4 p.m. | 2.8 ppb (3) | 1.1 ppb (2) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 35.0 ppb (33) | N/A | 9.0 μg/m3 (9) | 6.0 μg/m3 (25) | 33.0 | |
| April 20, 2021, 3 p.m. | 3.6 ppb (4) | 1.7 ppb (2) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 32.0 ppb (30) | N/A | 8.0 μg/m3 (8) | 3.0 μg/m3 (13) | 30.0 | |
| April 20, 2021, 2 p.m. | 4.8 ppb (5) | 2.1 ppb (2) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 28.0 ppb (26) | N/A | 15.0 μg/m3 (14) | 2.0 μg/m3 (9) | 26.0 | |
| April 20, 2021, 1 p.m. | 3.7 ppb (4) | 1.1 ppb (2) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 26.0 ppb (25) | N/A | 7.0 μg/m3 (7) | 7.0 μg/m3 (30) | 30.0 | |
| April 20, 2021, noon | 3.8 ppb (4) | 0.3 ppb (1) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 23.0 ppb (22) | N/A | 4.0 μg/m3 (4) | 4.0 μg/m3 (17) | 22.0 | |
| April 20, 2021, 11 a.m. | 2.6 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 24.0 ppb (23) | N/A | 3.0 μg/m3 (3) | 0.0 μg/m3 (0) | 23.0 | |
| April 20, 2021, 10 a.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 25.0 ppb (24) | N/A | 3.0 μg/m3 (3) | 3.0 μg/m3 (13) | 24.0 | |
| April 20, 2021, 9 a.m. | 2.5 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 26.0 ppb (25) | N/A | 3.0 μg/m3 (3) | 2.0 μg/m3 (9) | 25.0 | |
| April 20, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (1) | 3.0 μg/m3 (13) | 13.0 | |
| April 20, 2021, 7 a.m. | 2.8 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 27.0 ppb (25) | N/A | -1.0 μg/m3 (0) | 1.0 μg/m3 (5) | 25.0 | |
| April 20, 2021, 6 a.m. | 2.1 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 28.0 ppb (26) | N/A | 1.0 μg/m3 (1) | 0.0 μg/m3 (0) | 26.0 | |
| April 20, 2021, 5 a.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 29.0 ppb (27) | N/A | 1.0 μg/m3 (1) | 3.0 μg/m3 (13) | 27.0 | |
| April 20, 2021, 4 a.m. | 2.1 ppb (2) | 0.1 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 32.0 ppb (30) | N/A | 4.0 μg/m3 (4) | 4.0 μg/m3 (17) | 30.0 | |
| April 20, 2021, 3 a.m. | 2.4 ppb (3) | 0.2 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 35.0 ppb (33) | N/A | 8.0 μg/m3 (8) | 4.0 μg/m3 (17) | 33.0 | |
| April 20, 2021, 2 a.m. | 2.9 ppb (3) | 0.5 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 38.0 ppb (36) | N/A | 6.0 μg/m3 (6) | 3.0 μg/m3 (13) | 36.0 | |
| April 20, 2021, 1 a.m. | 0.9 ppb (1) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 41.0 ppb (38) | N/A | 4.0 μg/m3 (4) | 3.0 μg/m3 (13) | 38.0 | |
| April 20, 2021, midnight | 1.4 ppb (2) | 0.5 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 42.0 ppb (39) | N/A | 6.0 μg/m3 (6) | 4.0 μg/m3 (17) | 39.0 | |
| April 19, 2021, 11 p.m. | 1.0 ppb (1) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 42.0 ppb (39) | N/A | 8.0 μg/m3 (8) | 6.0 μg/m3 (25) | 39.0 | |
| April 19, 2021, 10 p.m. | 1.1 ppb (2) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 42.0 ppb (39) | N/A | 8.0 μg/m3 (8) | 6.0 μg/m3 (25) | 39.0 | |
| April 19, 2021, 9 p.m. | 1.7 ppb (2) | 0.6 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 40.0 ppb (38) | N/A | 11.0 μg/m3 (11) | 3.0 μg/m3 (13) | 38.0 | |
| April 19, 2021, 8 p.m. | 0.7 ppb (1) | 0.2 ppb (1) | N/A | 0.0 ppb (0) | N/A | 1.0 ppb (2) | 40.0 ppb (38) | N/A | 13.0 μg/m3 (13) | 4.0 μg/m3 (17) | 38.0 | |
| April 19, 2021, 7 p.m. | 0.7 ppb (1) | 0.2 ppb (1) | N/A | 0.0 ppb (0) | N/A | 1.0 ppb (2) | 39.0 ppb (37) | N/A | 12.0 μg/m3 (12) | 5.0 μg/m3 (21) | 37.0 | |
| April 19, 2021, 6 p.m. | 1.0 ppb (1) | 0.4 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 37.0 ppb (35) | N/A | 9.0 μg/m3 (9) | 5.0 μg/m3 (21) | 35.0 | |
| April 19, 2021, 5 p.m. | 0.8 ppb (1) | 0.3 ppb (1) | N/A | 0.0 ppb (0) | N/A | 1.0 ppb (2) | 37.0 ppb (35) | N/A | 6.0 μg/m3 (6) | 5.0 μg/m3 (21) | 35.0 | |
| April 19, 2021, 4 p.m. | 1.0 ppb (1) | 0.4 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 36.0 ppb (34) | N/A | 8.0 μg/m3 (8) | 4.0 μg/m3 (17) | 34.0 | |
| April 19, 2021, 3 p.m. | 0.5 ppb (1) | 0.2 ppb (1) | N/A | 0.0 ppb (0) | N/A | 1.0 ppb (2) | 36.0 ppb (34) | N/A | 7.0 μg/m3 (7) | 1.0 μg/m3 (5) | 34.0 | |
| April 19, 2021, 2 p.m. | 1.1 ppb (2) | 0.5 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 38.0 ppb (36) | N/A | 3.0 μg/m3 (3) | 1.0 μg/m3 (5) | 36.0 | |
| April 19, 2021, 1 p.m. | 3.7 ppb (4) | 1.8 ppb (2) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 38.0 ppb (36) | N/A | -1.0 μg/m3 (0) | 2.0 μg/m3 (9) | 36.0 | |
| April 19, 2021, noon | 1.3 ppb (2) | 0.5 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 35.0 ppb (33) | N/A | 2.0 μg/m3 (2) | 1.0 μg/m3 (5) | 33.0 | |
| April 19, 2021, 11 a.m. | 0.6 ppb (1) | 0.2 ppb (1) | N/A | 0.0 ppb (0) | N/A | 1.0 ppb (2) | 35.0 ppb (33) | N/A | 6.0 μg/m3 (6) | 0.0 μg/m3 (0) | 33.0 | |
| April 19, 2021, 10 a.m. | 0.7 ppb (1) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 32.0 ppb (30) | N/A | 6.0 μg/m3 (6) | 2.0 μg/m3 (9) | 30.0 | |
| April 19, 2021, 9 a.m. | 0.4 ppb (1) | 0.1 ppb (1) | N/A | 0.0 ppb (0) | N/A | 1.0 ppb (2) | 30.0 ppb (28) | N/A | 7.0 μg/m3 (7) | 0.0 μg/m3 (0) | 28.0 | |
| April 19, 2021, 8 a.m. | 0.4 ppb (1) | 0.1 ppb (1) | N/A | 0.0 ppb (0) | N/A | 1.0 ppb (2) | 30.0 ppb (28) | N/A | 6.0 μg/m3 (6) | 1.0 μg/m3 (5) | 28.0 | |
| April 19, 2021, 7 a.m. | 0.5 ppb (1) | 0.1 ppb (1) | N/A | 0.0 ppb (0) | N/A | 1.0 ppb (2) | 34.0 ppb (32) | N/A | 10.0 μg/m3 (10) | 3.0 μg/m3 (13) | 32.0 | |
| April 19, 2021, 6 a.m. | 0.8 ppb (1) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 35.0 ppb (33) | N/A | 14.0 μg/m3 (13) | 5.0 μg/m3 (21) | 33.0 | |
| April 19, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 μg/m3 (13) | 6.0 μg/m3 (25) | 25.0 | |
| April 19, 2021, 4 a.m. | 1.6 ppb (2) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 40.0 ppb (38) | N/A | 14.0 μg/m3 (13) | 7.0 μg/m3 (30) | 38.0 | |
| April 19, 2021, 3 a.m. | 1.2 ppb (2) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 42.0 ppb (39) | N/A | 13.0 μg/m3 (13) | 6.0 μg/m3 (25) | 39.0 | |
| April 19, 2021, 2 a.m. | 1.1 ppb (2) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 45.0 ppb (42) | N/A | 11.0 μg/m3 (11) | 5.0 μg/m3 (21) | 42.0 | |
| April 19, 2021, 1 a.m. | 1.1 ppb (2) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 47.0 ppb (44) | N/A | 11.0 μg/m3 (11) | 3.0 μg/m3 (13) | 44.0 | |
| April 19, 2021, midnight | 0.9 ppb (1) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 49.0 ppb (46) | N/A | 12.0 μg/m3 (12) | 3.0 μg/m3 (13) | 46.0 | |
| April 18, 2021, 11 p.m. | 2.2 ppb (3) | 0.9 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 49.0 ppb (46) | N/A | 9.0 μg/m3 (9) | 5.0 μg/m3 (21) | 46.0 | |
| April 18, 2021, 10 p.m. | 0.9 ppb (1) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 52.0 ppb (49) | N/A | 11.0 μg/m3 (11) | 5.0 μg/m3 (21) | 49.0 | |
| April 18, 2021, 9 p.m. | 2.3 ppb (3) | 0.7 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 52.0 ppb (49) | N/A | 13.0 μg/m3 (13) | 5.0 μg/m3 (21) | 49.0 | |
| April 18, 2021, 8 p.m. | 1.1 ppb (2) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 54.0 ppb (50) | N/A | 14.0 μg/m3 (13) | 6.0 μg/m3 (25) | 50.0 | |
| April 18, 2021, 7 p.m. | 1.1 ppb (2) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 53.0 ppb (50) | N/A | 14.0 μg/m3 (13) | 6.0 μg/m3 (25) | 50.0 | |
| April 18, 2021, 6 p.m. | 1.8 ppb (2) | 0.5 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 49.0 ppb (46) | N/A | 15.0 μg/m3 (14) | 4.0 μg/m3 (17) | 46.0 | |
| April 18, 2021, 5 p.m. | 1.9 ppb (2) | 0.5 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 38.0 ppb (36) | N/A | 8.0 μg/m3 (8) | 3.0 μg/m3 (13) | 36.0 | |
| April 18, 2021, 4 p.m. | 2.0 ppb (2) | 0.6 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 32.0 ppb (30) | N/A | 8.0 μg/m3 (8) | 5.0 μg/m3 (21) | 30.0 | |
| April 18, 2021, 3 p.m. | 1.0 ppb (1) | 0.4 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 31.0 ppb (29) | N/A | 15.0 μg/m3 (14) | 6.0 μg/m3 (25) | 29.0 | |
| April 18, 2021, 2 p.m. | 3.3 ppb (4) | 1.4 ppb (2) | N/A | 2.0 ppb (2) | N/A | 2.0 ppb (3) | 21.0 ppb (20) | N/A | 5.0 μg/m3 (5) | 4.0 μg/m3 (17) | 20.0 | |
| April 18, 2021, 1 p.m. | 3.2 ppb (4) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 15.0 ppb (14) | N/A | 6.0 μg/m3 (6) | 3.0 μg/m3 (13) | 14.0 | |
| April 18, 2021, noon | 8.2 ppb (8) | 1.6 ppb (2) | N/A | 7.0 ppb (7) | N/A | 1.0 ppb (2) | 11.0 ppb (11) | N/A | 7.0 μg/m3 (7) | 5.0 μg/m3 (21) | 21.0 | |
| April 18, 2021, 11 a.m. | 3.7 ppb (4) | 0.3 ppb (1) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 14.0 ppb (13) | N/A | 6.0 μg/m3 (6) | 9.0 μg/m3 (38) | 38.0 | |
| April 18, 2021, 10 a.m. | 3.5 ppb (4) | 0.2 ppb (1) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 15.0 ppb (14) | N/A | 5.0 μg/m3 (5) | 6.0 μg/m3 (25) | 25.0 | |
| April 18, 2021, 9 a.m. | 5.3 ppb (5) | 0.4 ppb (1) | N/A | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 14.0 ppb (13) | N/A | 8.0 μg/m3 (8) | 6.0 μg/m3 (25) | 25.0 | |
| April 18, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 μg/m3 (11) | 11.0 μg/m3 (46) | 46.0 | |
| April 18, 2021, 7 a.m. | 2.7 ppb (3) | 0.1 ppb (1) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 20.0 ppb (19) | N/A | 10.0 μg/m3 (10) | 9.0 μg/m3 (38) | 38.0 | |
| April 18, 2021, 6 a.m. | 2.6 ppb (3) | 0.2 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 22.0 ppb (21) | N/A | 11.0 μg/m3 (11) | 7.0 μg/m3 (30) | 30.0 | |
| April 18, 2021, 5 a.m. | 2.6 ppb (3) | 0.1 ppb (1) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 24.0 ppb (23) | N/A | 13.0 μg/m3 (13) | 6.0 μg/m3 (25) | 25.0 | |
| April 18, 2021, 4 a.m. | 2.9 ppb (3) | 0.1 ppb (1) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 26.0 ppb (25) | N/A | 12.0 μg/m3 (12) | 5.0 μg/m3 (21) | 25.0 | |
| April 18, 2021, 3 a.m. | 4.3 ppb (5) | 0.1 ppb (1) | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (2) | 28.0 ppb (26) | N/A | 12.0 μg/m3 (12) | 4.0 μg/m3 (17) | 26.0 | |
| April 18, 2021, 2 a.m. | 2.2 ppb (3) | 0.1 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 35.0 ppb (33) | N/A | 9.0 μg/m3 (9) | 3.0 μg/m3 (13) | 33.0 | |
| April 18, 2021, 1 a.m. | 1.3 ppb (2) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 44.0 ppb (41) | N/A | 6.0 μg/m3 (6) | 3.0 μg/m3 (13) | 41.0 | |
| April 18, 2021, midnight | 0.7 ppb (1) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 46.0 ppb (43) | N/A | 8.0 μg/m3 (8) | 2.0 μg/m3 (9) | 43.0 | |
| April 17, 2021, 11 p.m. | 0.6 ppb (1) | 0.1 ppb (1) | N/A | 0.0 ppb (0) | N/A | 1.0 ppb (2) | 47.0 ppb (44) | N/A | 8.0 μg/m3 (8) | 1.0 μg/m3 (5) | 44.0 | |
| April 17, 2021, 10 p.m. | 0.7 ppb (1) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 48.0 ppb (45) | N/A | 10.0 μg/m3 (10) | 1.0 μg/m3 (5) | 45.0 | |
| April 17, 2021, 9 p.m. | 0.9 ppb (1) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 48.0 ppb (45) | N/A | 13.0 μg/m3 (13) | 3.0 μg/m3 (13) | 45.0 | |
| April 17, 2021, 8 p.m. | 0.9 ppb (1) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 49.0 ppb (46) | N/A | 18.0 μg/m3 (17) | 2.0 μg/m3 (9) | 46.0 | |
| April 17, 2021, 7 p.m. | 1.1 ppb (2) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 49.0 ppb (46) | N/A | 13.0 μg/m3 (13) | 1.0 μg/m3 (5) | 46.0 | |
| April 17, 2021, 6 p.m. | 1.1 ppb (2) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 44.0 ppb (41) | N/A | 12.0 μg/m3 (12) | 3.0 μg/m3 (13) | 41.0 | |
| April 17, 2021, 5 p.m. | 1.1 ppb (2) | 0.4 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 38.0 ppb (36) | N/A | 10.0 μg/m3 (10) | 5.0 μg/m3 (21) | 36.0 | |
| April 17, 2021, 4 p.m. | 0.9 ppb (1) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 35.0 ppb (33) | N/A | 10.0 μg/m3 (10) | 3.0 μg/m3 (13) | 33.0 | |
| April 17, 2021, 3 p.m. | 1.0 ppb (1) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 33.0 ppb (31) | N/A | 11.0 μg/m3 (11) | 4.0 μg/m3 (17) | 31.0 | |
| April 17, 2021, 2 p.m. | 2.4 ppb (3) | 0.9 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 25.0 ppb (24) | N/A | 7.0 μg/m3 (7) | 5.0 μg/m3 (21) | 24.0 | |
| April 17, 2021, 1 p.m. | 2.9 ppb (3) | 0.8 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 22.0 ppb (21) | N/A | 1.0 μg/m3 (1) | 7.0 μg/m3 (30) | 30.0 | |
| April 17, 2021, noon | 2.6 ppb (3) | 0.2 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 21.0 ppb (20) | N/A | 1.0 μg/m3 (1) | 4.0 μg/m3 (17) | 20.0 | |
| April 17, 2021, 11 a.m. | 5.7 ppb (6) | 0.6 ppb (1) | N/A | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 15.0 ppb (14) | N/A | 3.0 μg/m3 (3) | 0.0 μg/m3 (0) | 14.0 | |
| April 17, 2021, 10 a.m. | 2.5 ppb (3) | 0.2 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 19.0 ppb (18) | N/A | 4.0 μg/m3 (4) | 2.0 μg/m3 (9) | 18.0 | |
| April 17, 2021, 9 a.m. | 6.3 ppb (6) | 0.5 ppb (1) | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (2) | 16.0 ppb (15) | N/A | 3.0 μg/m3 (3) | 2.0 μg/m3 (9) | 15.0 | |
| April 17, 2021, 8 a.m. | 5.0 ppb (5) | 0.3 ppb (1) | N/A | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 19.0 ppb (18) | N/A | 3.0 μg/m3 (3) | 4.0 μg/m3 (17) | 18.0 | |
| April 17, 2021, 7 a.m. | 1.5 ppb (2) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 23.0 ppb (22) | N/A | 3.0 μg/m3 (3) | 6.0 μg/m3 (25) | 25.0 | |
| April 17, 2021, 6 a.m. | 2.0 ppb (2) | 0.1 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 26.0 ppb (25) | N/A | 1.0 μg/m3 (1) | 5.0 μg/m3 (21) | 25.0 | |
| April 17, 2021, 5 a.m. | 2.8 ppb (3) | 0.3 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 26.0 ppb (25) | N/A | 3.0 μg/m3 (3) | 4.0 μg/m3 (17) | 25.0 | |
| April 17, 2021, 4 a.m. | 2.5 ppb (3) | 0.1 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 28.0 ppb (26) | N/A | 5.0 μg/m3 (5) | 1.0 μg/m3 (5) | 26.0 | |
| April 17, 2021, 3 a.m. | 2.2 ppb (3) | 0.1 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 30.0 ppb (28) | N/A | 6.0 μg/m3 (6) | 0.0 μg/m3 (0) | 28.0 | |
| April 17, 2021, 2 a.m. | 1.4 ppb (2) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 31.0 ppb (29) | N/A | 4.0 μg/m3 (4) | 6.0 μg/m3 (25) | 29.0 | |
| April 17, 2021, 1 a.m. | 1.5 ppb (2) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 34.0 ppb (32) | N/A | 3.0 μg/m3 (3) | 8.0 μg/m3 (34) | 34.0 | |
| April 17, 2021, midnight | 2.1 ppb (2) | 0.4 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 34.0 ppb (32) | N/A | 2.0 μg/m3 (2) | 5.0 μg/m3 (21) | 32.0 | |
| April 16, 2021, 11 p.m. | 1.2 ppb (2) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 37.0 ppb (35) | N/A | 4.0 μg/m3 (4) | 3.0 μg/m3 (13) | 35.0 | |
| April 16, 2021, 10 p.m. | 0.7 ppb (1) | 0.2 ppb (1) | N/A | 0.0 ppb (0) | N/A | 1.0 ppb (2) | 36.0 ppb (34) | N/A | 6.0 μg/m3 (6) | 2.0 μg/m3 (9) | 34.0 | |
| April 16, 2021, 9 p.m. | 1.0 ppb (1) | 0.4 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 36.0 ppb (34) | N/A | 4.0 μg/m3 (4) | 4.0 μg/m3 (17) | 34.0 | |
| April 16, 2021, 8 p.m. | 0.7 ppb (1) | 0.2 ppb (1) | N/A | 0.0 ppb (0) | N/A | 1.0 ppb (2) | 37.0 ppb (35) | N/A | 7.0 μg/m3 (7) | 5.0 μg/m3 (21) | 35.0 | |
| April 16, 2021, 7 p.m. | 0.8 ppb (1) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 39.0 ppb (37) | N/A | 8.0 μg/m3 (8) | 5.0 μg/m3 (21) | 37.0 | |
| April 16, 2021, 6 p.m. | 0.9 ppb (1) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 39.0 ppb (37) | N/A | 4.0 μg/m3 (4) | 2.0 μg/m3 (9) | 37.0 | |
| April 16, 2021, 5 p.m. | 0.8 ppb (1) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 37.0 ppb (35) | N/A | 5.0 μg/m3 (5) | 1.0 μg/m3 (5) | 35.0 | |
| April 16, 2021, 4 p.m. | 1.1 ppb (2) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 34.0 ppb (32) | N/A | 6.0 μg/m3 (6) | 3.0 μg/m3 (13) | 32.0 | |
| April 16, 2021, 3 p.m. | 1.4 ppb (2) | 0.5 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 31.0 ppb (29) | N/A | 5.0 μg/m3 (5) | 4.0 μg/m3 (17) | 29.0 | |
| April 16, 2021, 2 p.m. | 2.5 ppb (3) | 0.7 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 29.0 ppb (27) | N/A | 6.0 μg/m3 (6) | 6.0 μg/m3 (25) | 27.0 | |
| April 16, 2021, 1 p.m. | 2.4 ppb (3) | 0.5 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 28.0 ppb (26) | N/A | 6.0 μg/m3 (6) | 6.0 μg/m3 (25) | 26.0 | |
| April 16, 2021, noon | 1.3 ppb (2) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 28.0 ppb (26) | N/A | 4.0 μg/m3 (4) | 4.0 μg/m3 (17) | 26.0 | |
| April 16, 2021, 11 a.m. | 0.7 ppb (1) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 29.0 ppb (27) | N/A | 3.0 μg/m3 (3) | 4.0 μg/m3 (17) | 27.0 | |
| April 16, 2021, 10 a.m. | 0.6 ppb (1) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 30.0 ppb (28) | N/A | 0.0 μg/m3 (0) | 4.0 μg/m3 (17) | 28.0 | |
| April 16, 2021, 9 a.m. | 0.8 ppb (1) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 30.0 ppb (28) | N/A | 1.0 μg/m3 (1) | 2.0 μg/m3 (9) | 28.0 | |
| April 16, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (5) | 1.0 μg/m3 (5) | 5.0 | |
| April 16, 2021, 7 a.m. | 1.3 ppb (2) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 27.0 ppb (25) | N/A | 5.0 μg/m3 (5) | 3.0 μg/m3 (13) | 25.0 | |
| April 16, 2021, 6 a.m. | 1.0 ppb (1) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 29.0 ppb (27) | N/A | 3.0 μg/m3 (3) | 3.0 μg/m3 (13) | 27.0 | |
| April 16, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (5) | 3.0 μg/m3 (13) | 13.0 | |
| April 16, 2021, 4 a.m. | 1.8 ppb (2) | 0.1 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 30.0 ppb (28) | N/A | 6.0 μg/m3 (6) | 5.0 μg/m3 (21) | 28.0 | |
| April 16, 2021, 3 a.m. | 2.0 ppb (2) | 0.1 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 30.0 ppb (28) | N/A | 3.0 μg/m3 (3) | 4.0 μg/m3 (17) | 28.0 | |
| April 16, 2021, 2 a.m. | 1.4 ppb (2) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 33.0 ppb (31) | N/A | 3.0 μg/m3 (3) | 4.0 μg/m3 (17) | 31.0 | |
| April 16, 2021, 1 a.m. | 1.0 ppb (1) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 35.0 ppb (33) | N/A | 6.0 μg/m3 (6) | 4.0 μg/m3 (17) | 33.0 | |
| April 16, 2021, midnight | 1.2 ppb (2) | 0.4 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 35.0 ppb (33) | N/A | 4.0 μg/m3 (4) | 3.0 μg/m3 (13) | 33.0 | |
| April 15, 2021, 11 p.m. | 1.0 ppb (1) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 36.0 ppb (34) | N/A | 6.0 μg/m3 (6) | 3.0 μg/m3 (13) | 34.0 | |
| April 15, 2021, 10 p.m. | 1.0 ppb (1) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 38.0 ppb (36) | N/A | 11.0 μg/m3 (11) | 2.0 μg/m3 (9) | 36.0 | |
| April 15, 2021, 9 p.m. | 1.0 ppb (1) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 37.0 ppb (35) | N/A | 4.0 μg/m3 (4) | 1.0 μg/m3 (5) | 35.0 | |
| April 15, 2021, 8 p.m. | 0.9 ppb (1) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 38.0 ppb (36) | N/A | -1.0 μg/m3 (0) | 1.0 μg/m3 (5) | 36.0 | |
| April 15, 2021, 7 p.m. | 0.9 ppb (1) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 36.0 ppb (34) | N/A | 1.0 μg/m3 (1) | 3.0 μg/m3 (13) | 34.0 | |
| April 15, 2021, 6 p.m. | 1.2 ppb (2) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 36.0 ppb (34) | N/A | 4.0 μg/m3 (4) | 3.0 μg/m3 (13) | 34.0 | |
| April 15, 2021, 5 p.m. | 1.1 ppb (2) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 36.0 ppb (34) | N/A | 4.0 μg/m3 (4) | 2.0 μg/m3 (9) | 34.0 | |
| April 15, 2021, 4 p.m. | 1.3 ppb (2) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 35.0 ppb (33) | N/A | 4.0 μg/m3 (4) | 2.0 μg/m3 (9) | 33.0 | |
| April 15, 2021, 3 p.m. | 1.9 ppb (2) | 0.6 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 34.0 ppb (32) | N/A | 7.0 μg/m3 (7) | 4.0 μg/m3 (17) | 32.0 | |
| April 15, 2021, 2 p.m. | 2.0 ppb (2) | 0.6 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 33.0 ppb (31) | N/A | 4.0 μg/m3 (4) | 6.0 μg/m3 (25) | 31.0 | |
| April 15, 2021, 1 p.m. | 1.8 ppb (2) | 0.4 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 34.0 ppb (32) | N/A | 6.0 μg/m3 (6) | 10.0 μg/m3 (42) | 42.0 | |
| April 15, 2021, noon | 0.9 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 35.0 ppb (33) | N/A | 6.0 μg/m3 (6) | 5.0 μg/m3 (21) | 33.0 | |
| April 15, 2021, 11 a.m. | 0.7 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 39.0 ppb (37) | N/A | 4.0 μg/m3 (4) | 1.0 μg/m3 (5) | 37.0 | |
| April 15, 2021, 10 a.m. | 1.2 ppb (2) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 39.0 ppb (37) | N/A | 4.0 μg/m3 (4) | 4.0 μg/m3 (17) | 37.0 | |
| April 15, 2021, 9 a.m. | 0.4 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | N/A | 1.0 ppb (2) | 39.0 ppb (37) | N/A | 6.0 μg/m3 (6) | 3.0 μg/m3 (13) | 37.0 | |
| April 15, 2021, 8 a.m. | 0.8 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 39.0 ppb (37) | N/A | 8.0 μg/m3 (8) | 3.0 μg/m3 (13) | 37.0 | |
| April 15, 2021, 7 a.m. | 0.8 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 38.0 ppb (36) | N/A | 4.0 μg/m3 (4) | 3.0 μg/m3 (13) | 36.0 | |
| April 15, 2021, 6 a.m. | 0.8 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 37.0 ppb (35) | N/A | 3.0 μg/m3 (3) | 4.0 μg/m3 (17) | 35.0 | |
| April 15, 2021, 5 a.m. | 0.7 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 37.0 ppb (35) | N/A | 3.0 μg/m3 (3) | 6.0 μg/m3 (25) | 35.0 | |
| April 15, 2021, 4 a.m. | 0.8 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 37.0 ppb (35) | N/A | 1.0 μg/m3 (1) | 4.0 μg/m3 (17) | 35.0 | |
| April 15, 2021, 3 a.m. | 0.9 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 37.0 ppb (35) | N/A | 1.0 μg/m3 (1) | 1.0 μg/m3 (5) | 35.0 | |
| April 15, 2021, 2 a.m. | 1.3 ppb (2) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 37.0 ppb (35) | N/A | 2.0 μg/m3 (2) | 0.0 μg/m3 (0) | 35.0 | |
| April 15, 2021, 1 a.m. | 1.1 ppb (2) | 0.1 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 36.0 ppb (34) | N/A | 2.0 μg/m3 (2) | 3.0 μg/m3 (13) | 34.0 | |
| April 15, 2021, midnight | 1.1 ppb (2) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 37.0 ppb (35) | N/A | 0.0 μg/m3 (0) | 4.0 μg/m3 (17) | 35.0 | |
| April 14, 2021, 11 p.m. | 1.2 ppb (2) | 0.4 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 37.0 ppb (35) | N/A | 4.0 μg/m3 (4) | 2.0 μg/m3 (9) | 35.0 | |
| April 14, 2021, 10 p.m. | 1.2 ppb (2) | 0.4 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 39.0 ppb (37) | N/A | 5.0 μg/m3 (5) | 3.0 μg/m3 (13) | 37.0 | |
| April 14, 2021, 9 p.m. | 1.1 ppb (2) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 38.0 ppb (36) | N/A | 4.0 μg/m3 (4) | 3.0 μg/m3 (13) | 36.0 | |
| April 14, 2021, 8 p.m. | 1.5 ppb (2) | 0.5 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 36.0 ppb (34) | N/A | 4.0 μg/m3 (4) | 4.0 μg/m3 (17) | 34.0 | |
| April 14, 2021, 7 p.m. | 1.3 ppb (2) | 0.4 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 34.0 ppb (32) | N/A | 5.0 μg/m3 (5) | 4.0 μg/m3 (17) | 32.0 | |
| April 14, 2021, 6 p.m. | 0.8 ppb (1) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 34.0 ppb (32) | N/A | 6.0 μg/m3 (6) | 3.0 μg/m3 (13) | 32.0 | |
| April 14, 2021, 5 p.m. | 0.8 ppb (1) | 0.3 ppb (1) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | 35.0 ppb (33) | N/A | 7.0 μg/m3 (7) | 6.0 μg/m3 (25) | 33.0 |