Hancock Co ME, US: 44.377048, -68.260902
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| May 26, 2019, noon | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 34.0 ppb (26) | N/A | N/A | 0.5 μg/m3 (2) | 26.0 | |
| May 26, 2019, 11 a.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 34.0 ppb (26) | N/A | N/A | 0.7 μg/m3 (3) | 26.0 | |
| May 26, 2019, 10 a.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 34.0 ppb (26) | N/A | N/A | 0.9 μg/m3 (4) | 26.0 | |
| May 26, 2019, 9 a.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 33.0 ppb (25) | N/A | N/A | 1.9 μg/m3 (8) | 25.0 | |
| May 26, 2019, 8 a.m. | N/A | 0.0 ppb (0) | 0.6 ppb (1) | N/A | N/A | 0.0 ppb (0) | 33.0 ppb (25) | N/A | N/A | 2.5 μg/m3 (10) | 25.0 | |
| May 26, 2019, 7 a.m. | N/A | 0.0 ppb (0) | 0.6 ppb (1) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | 3.7 μg/m3 (15) | 24.0 | |
| May 26, 2019, 6 a.m. | N/A | 0.0 ppb (0) | 0.6 ppb (1) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 3.5 μg/m3 (15) | 25.0 | |
| May 26, 2019, 5 a.m. | N/A | 0.0 ppb (0) | 0.5 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 3.2 μg/m3 (13) | 25.0 | |
| May 26, 2019, 4 a.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | 2.9 μg/m3 (12) | 24.0 | |
| May 26, 2019, 3 a.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | 2.4 μg/m3 (10) | 24.0 | |
| May 26, 2019, 2 a.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 33.0 ppb (25) | N/A | N/A | 1.8 μg/m3 (8) | 25.0 | |
| May 26, 2019, 1 a.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 35.0 ppb (27) | N/A | N/A | 1.3 μg/m3 (5) | 27.0 | |
| May 26, 2019, midnight | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 34.0 ppb (26) | N/A | N/A | 1.4 μg/m3 (6) | 26.0 | |
| May 25, 2019, 11 p.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 33.0 ppb (25) | N/A | N/A | 1.4 μg/m3 (6) | 25.0 | |
| May 25, 2019, 10 p.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | N/A | N/A | 2.0 μg/m3 (8) | 23.0 | |
| May 25, 2019, 9 p.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | N/A | N/A | 1.9 μg/m3 (8) | 23.0 | |
| May 25, 2019, 8 p.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 33.0 ppb (25) | N/A | N/A | 1.5 μg/m3 (6) | 25.0 | |
| May 25, 2019, 7 p.m. | N/A | 0.0 ppb (0) | 0.5 ppb (0) | N/A | N/A | 0.0 ppb (0) | 33.0 ppb (25) | N/A | N/A | 1.4 μg/m3 (6) | 25.0 | |
| May 25, 2019, 6 p.m. | N/A | 0.0 ppb (0) | 0.5 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 1.4 μg/m3 (6) | 25.0 | |
| May 25, 2019, 5 p.m. | N/A | 0.0 ppb (0) | 0.5 ppb (0) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | N/A | N/A | 1.5 μg/m3 (6) | 23.0 | |
| May 25, 2019, 4 p.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 34.0 ppb (26) | N/A | N/A | 1.1 μg/m3 (5) | 26.0 | |
| May 25, 2019, 3 p.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 34.0 ppb (26) | N/A | N/A | 1.1 μg/m3 (5) | 26.0 | |
| May 25, 2019, 2 p.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | 1.4 μg/m3 (6) | 24.0 | |
| May 25, 2019, 1 p.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 27.0 ppb (21) | N/A | N/A | 1.9 μg/m3 (8) | 21.0 | |
| May 25, 2019, noon | N/A | 0.0 ppb (0) | 0.5 ppb (0) | N/A | N/A | 0.0 ppb (0) | 25.0 ppb (19) | N/A | N/A | 2.4 μg/m3 (10) | 19.0 | |
| May 25, 2019, 11 a.m. | N/A | 0.0 ppb (0) | 0.5 ppb (0) | N/A | N/A | 0.0 ppb (0) | 24.0 ppb (18) | N/A | N/A | 2.6 μg/m3 (11) | 18.0 | |
| May 25, 2019, 10 a.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 21.0 ppb (16) | N/A | N/A | 2.4 μg/m3 (10) | 16.0 | |
| May 25, 2019, 9 a.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 23.0 ppb (18) | N/A | N/A | 2.2 μg/m3 (9) | 18.0 | |
| May 25, 2019, 8 a.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 24.0 ppb (18) | N/A | N/A | 2.3 μg/m3 (10) | 18.0 | |
| May 25, 2019, 7 a.m. | N/A | 0.0 ppb (0) | 0.5 ppb (0) | N/A | N/A | 0.0 ppb (0) | 26.0 ppb (20) | N/A | N/A | 2.5 μg/m3 (10) | 20.0 | |
| May 25, 2019, 6 a.m. | N/A | 0.0 ppb (0) | 0.5 ppb (0) | N/A | N/A | 0.0 ppb (0) | 27.0 ppb (21) | N/A | N/A | 2.5 μg/m3 (10) | 21.0 | |
| May 25, 2019, 5 a.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 27.0 ppb (21) | N/A | N/A | 2.0 μg/m3 (8) | 21.0 | |
| May 25, 2019, 4 a.m. | N/A | 0.0 ppb (0) | 0.5 ppb (0) | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (22) | N/A | N/A | 2.0 μg/m3 (8) | 22.0 | |
| May 25, 2019, 3 a.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | N/A | N/A | 1.8 μg/m3 (8) | 23.0 | |
| May 25, 2019, 2 a.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 1.5 μg/m3 (6) | 25.0 | |
| May 25, 2019, 1 a.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 1.3 μg/m3 (5) | 25.0 | |
| May 25, 2019, midnight | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 1.3 μg/m3 (5) | 25.0 | |
| May 24, 2019, 11 p.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | 1.5 μg/m3 (6) | 24.0 | |
| May 24, 2019, 10 p.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | 1.2 μg/m3 (5) | 24.0 | |
| May 24, 2019, 9 p.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | 1.0 μg/m3 (4) | 24.0 | |
| May 24, 2019, 8 p.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | 1.0 μg/m3 (4) | 24.0 | |
| May 24, 2019, 7 p.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 0.9 μg/m3 (4) | 25.0 | |
| May 24, 2019, 6 p.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 33.0 ppb (25) | N/A | N/A | 0.5 μg/m3 (2) | 25.0 | |
| May 24, 2019, 5 p.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 0.3 μg/m3 (1) | 25.0 | |
| May 24, 2019, 4 p.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | 0.3 μg/m3 (1) | 24.0 | |
| May 24, 2019, 3 p.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | 0.0 μg/m3 (0) | 24.0 | |
| May 24, 2019, 2 p.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 35.0 ppb (27) | N/A | N/A | 0.0 μg/m3 (0) | 27.0 | |
| May 24, 2019, 1 p.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 35.0 ppb (27) | N/A | N/A | 0.0 μg/m3 (0) | 27.0 | |
| May 24, 2019, noon | N/A | 0.0 ppb (0) | 0.5 ppb (0) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | N/A | N/A | 0.1 μg/m3 (0) | 23.0 | |
| May 24, 2019, 11 a.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 29.0 ppb (22) | N/A | N/A | 0.1 μg/m3 (0) | 22.0 | |
| May 24, 2019, 10 a.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (22) | N/A | N/A | 0.1 μg/m3 (0) | 22.0 | |
| May 24, 2019, 9 a.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | N/A | N/A | 0.1 μg/m3 (0) | 23.0 | |
| May 24, 2019, 8 a.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 29.0 ppb (22) | N/A | N/A | 0.1 μg/m3 (0) | 22.0 | |
| May 24, 2019, 7 a.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 0.2 μg/m3 (1) | 25.0 | |
| May 24, 2019, 6 a.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 33.0 ppb (25) | N/A | N/A | 0.4 μg/m3 (2) | 25.0 | |
| May 24, 2019, 5 a.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 0.5 μg/m3 (2) | 25.0 | |
| May 24, 2019, 4 a.m. | N/A | 0.0 ppb (0) | 0.6 ppb (1) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 1.8 μg/m3 (8) | 25.0 | |
| May 24, 2019, 3 a.m. | N/A | 0.0 ppb (0) | 0.9 ppb (1) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | N/A | N/A | 2.4 μg/m3 (10) | 23.0 | |
| May 24, 2019, 2 a.m. | N/A | 0.0 ppb (0) | 0.7 ppb (1) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | N/A | N/A | 3.8 μg/m3 (16) | 23.0 | |
| May 24, 2019, 1 a.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 4.3 μg/m3 (18) | 25.0 | |
| May 24, 2019, midnight | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 33.0 ppb (25) | N/A | N/A | 3.8 μg/m3 (16) | 25.0 | |
| May 23, 2019, 11 p.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 34.0 ppb (26) | N/A | N/A | 3.3 μg/m3 (14) | 26.0 | |
| May 23, 2019, 10 p.m. | N/A | 0.0 ppb (0) | 0.5 ppb (0) | N/A | N/A | 0.0 ppb (0) | 34.0 ppb (26) | N/A | N/A | 2.9 μg/m3 (12) | 26.0 | |
| May 23, 2019, 9 p.m. | N/A | 0.0 ppb (0) | 0.7 ppb (1) | N/A | N/A | 0.0 ppb (0) | 35.0 ppb (27) | N/A | N/A | 2.6 μg/m3 (11) | 27.0 | |
| May 23, 2019, 8 p.m. | N/A | 0.1 ppb (0) | 1.1 ppb (1) | N/A | N/A | 0.0 ppb (0) | 36.0 ppb (28) | N/A | N/A | 2.0 μg/m3 (8) | 28.0 | |
| May 23, 2019, 7 p.m. | N/A | 0.1 ppb (0) | 1.0 ppb (1) | N/A | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | 1.7 μg/m3 (7) | 30.0 | |
| May 23, 2019, 6 p.m. | N/A | 0.1 ppb (0) | 1.0 ppb (1) | N/A | N/A | 0.0 ppb (0) | 42.0 ppb (32) | N/A | N/A | 1.9 μg/m3 (8) | 32.0 | |
| May 23, 2019, 5 p.m. | N/A | 0.1 ppb (0) | 1.0 ppb (1) | N/A | N/A | 0.0 ppb (0) | 46.0 ppb (35) | N/A | N/A | 1.7 μg/m3 (7) | 35.0 | |
| May 23, 2019, 4 p.m. | N/A | 0.1 ppb (0) | 1.4 ppb (1) | N/A | N/A | 0.0 ppb (0) | 48.0 ppb (37) | N/A | N/A | 2.0 μg/m3 (8) | 37.0 | |
| May 23, 2019, 3 p.m. | N/A | 0.1 ppb (0) | 1.4 ppb (1) | N/A | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 1.8 μg/m3 (8) | 33.0 | |
| May 23, 2019, 2 p.m. | N/A | 0.1 ppb (0) | 1.3 ppb (1) | N/A | N/A | 0.0 ppb (0) | 36.0 ppb (28) | N/A | N/A | 1.4 μg/m3 (6) | 28.0 | |
| May 23, 2019, 1 p.m. | N/A | 0.1 ppb (0) | 1.0 ppb (1) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | 1.1 μg/m3 (5) | 24.0 | |
| May 23, 2019, noon | N/A | 0.2 ppb (0) | 1.7 ppb (2) | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (22) | N/A | N/A | 0.8 μg/m3 (3) | 22.0 | |
| May 23, 2019, 11 a.m. | N/A | 0.2 ppb (0) | 2.3 ppb (2) | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (22) | N/A | N/A | 0.8 μg/m3 (3) | 22.0 | |
| May 23, 2019, 10 a.m. | N/A | 0.0 ppb (0) | 1.2 ppb (1) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | 0.6 μg/m3 (2) | 24.0 | |
| May 23, 2019, 9 a.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | 0.6 μg/m3 (2) | 24.0 | |
| May 23, 2019, 8 a.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | 0.7 μg/m3 (3) | 24.0 | |
| May 23, 2019, 7 a.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 0.7 μg/m3 (3) | 25.0 | |
| May 23, 2019, 6 a.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 33.0 ppb (25) | N/A | N/A | 0.6 μg/m3 (2) | 25.0 | |
| May 23, 2019, 5 a.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 34.0 ppb (26) | N/A | N/A | 0.6 μg/m3 (2) | 26.0 | |
| May 23, 2019, 4 a.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 34.0 ppb (26) | N/A | N/A | 0.6 μg/m3 (2) | 26.0 | |
| May 23, 2019, 3 a.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 0.7 μg/m3 (3) | 25.0 | |
| May 23, 2019, 2 a.m. | N/A | 0.0 ppb (0) | 0.2 ppb (0) | N/A | N/A | 0.0 ppb (0) | 29.0 ppb (22) | N/A | N/A | 0.7 μg/m3 (3) | 22.0 | |
| May 23, 2019, 1 a.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 29.0 ppb (22) | N/A | N/A | 0.7 μg/m3 (3) | 22.0 | |
| May 23, 2019, midnight | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | N/A | N/A | 0.7 μg/m3 (3) | 23.0 | |
| May 22, 2019, 11 p.m. | N/A | 0.0 ppb (0) | 0.5 ppb (0) | N/A | N/A | 0.0 ppb (0) | 29.0 ppb (22) | N/A | N/A | 0.7 μg/m3 (3) | 22.0 | |
| May 22, 2019, 10 p.m. | N/A | 0.0 ppb (0) | 0.2 ppb (0) | N/A | N/A | 0.0 ppb (0) | 33.0 ppb (25) | N/A | N/A | 0.5 μg/m3 (2) | 25.0 | |
| May 22, 2019, 9 p.m. | N/A | 0.0 ppb (0) | 0.2 ppb (0) | N/A | N/A | 0.0 ppb (0) | 33.0 ppb (25) | N/A | N/A | 0.4 μg/m3 (2) | 25.0 | |
| May 22, 2019, 8 p.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 0.4 μg/m3 (2) | 25.0 | |
| May 22, 2019, 7 p.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | 0.4 μg/m3 (2) | 24.0 | |
| May 22, 2019, 6 p.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 0.2 μg/m3 (1) | 25.0 | |
| May 22, 2019, 5 p.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | -0.1 μg/m3 (0) | 24.0 | |
| May 22, 2019, 4 p.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | 0.0 μg/m3 (0) | 24.0 | |
| May 22, 2019, 3 p.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | N/A | N/A | 0.2 μg/m3 (1) | 23.0 | |
| May 22, 2019, 2 p.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 29.0 ppb (22) | N/A | N/A | 0.2 μg/m3 (1) | 22.0 | |
| May 22, 2019, 1 p.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (22) | N/A | N/A | 0.2 μg/m3 (1) | 22.0 | |
| May 22, 2019, noon | N/A | 0.0 ppb (0) | 0.2 ppb (0) | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (22) | N/A | N/A | 0.0 μg/m3 (0) | 22.0 | |
| May 22, 2019, 11 a.m. | N/A | 0.0 ppb (0) | 0.2 ppb (0) | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (22) | N/A | N/A | 0.0 μg/m3 (0) | 22.0 | |
| May 22, 2019, 10 a.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (22) | N/A | N/A | 0.0 μg/m3 (0) | 22.0 | |
| May 22, 2019, 9 a.m. | N/A | 0.0 ppb (0) | 0.2 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 0.0 μg/m3 (0) | 25.0 | |
| May 22, 2019, 8 a.m. | N/A | 0.0 ppb (0) | 0.2 ppb (0) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | 0.0 μg/m3 (0) | 24.0 | |
| May 22, 2019, 7 a.m. | N/A | 0.0 ppb (0) | 0.2 ppb (0) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | N/A | N/A | 0.0 μg/m3 (0) | 23.0 | |
| May 22, 2019, 6 a.m. | N/A | 0.0 ppb (0) | 0.2 ppb (0) | N/A | N/A | 0.0 ppb (0) | 29.0 ppb (22) | N/A | N/A | 0.0 μg/m3 (0) | 22.0 | |
| May 22, 2019, 5 a.m. | N/A | 0.0 ppb (0) | 0.2 ppb (0) | N/A | N/A | 0.0 ppb (0) | 29.0 ppb (22) | N/A | N/A | 0.0 μg/m3 (0) | 22.0 | |
| May 22, 2019, 4 a.m. | N/A | 0.0 ppb (0) | 0.2 ppb (0) | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (22) | N/A | N/A | 0.1 μg/m3 (0) | 22.0 | |
| May 22, 2019, 3 a.m. | N/A | 0.0 ppb (0) | 0.2 ppb (0) | N/A | N/A | 0.0 ppb (0) | 23.0 ppb (18) | N/A | N/A | 0.2 μg/m3 (1) | 18.0 | |
| May 22, 2019, 2 a.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 24.0 ppb (18) | N/A | N/A | 0.3 μg/m3 (1) | 18.0 | |
| May 22, 2019, 1 a.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 25.0 ppb (19) | N/A | N/A | 0.3 μg/m3 (1) | 19.0 | |
| May 22, 2019, midnight | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 27.0 ppb (21) | N/A | N/A | 0.3 μg/m3 (1) | 21.0 | |
| May 21, 2019, 11 p.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (22) | N/A | N/A | 0.2 μg/m3 (1) | 22.0 | |
| May 21, 2019, 10 p.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (22) | N/A | N/A | 0.2 μg/m3 (1) | 22.0 | |
| May 21, 2019, 9 p.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (22) | N/A | N/A | 0.2 μg/m3 (1) | 22.0 | |
| May 21, 2019, 8 p.m. | N/A | 0.0 ppb (0) | 0.5 ppb (0) | N/A | N/A | 0.0 ppb (0) | 28.0 ppb (22) | N/A | N/A | 0.3 μg/m3 (1) | 22.0 | |
| May 21, 2019, 7 p.m. | N/A | 0.1 ppb (0) | 0.5 ppb (0) | N/A | N/A | 0.0 ppb (0) | 29.0 ppb (22) | N/A | N/A | 0.3 μg/m3 (1) | 22.0 | |
| May 21, 2019, 6 p.m. | N/A | 0.1 ppb (0) | 0.6 ppb (1) | N/A | N/A | 0.0 ppb (0) | 29.0 ppb (22) | N/A | N/A | 0.2 μg/m3 (1) | 22.0 | |
| May 21, 2019, 5 p.m. | N/A | 0.0 ppb (0) | 0.5 ppb (0) | N/A | N/A | 0.0 ppb (0) | 33.0 ppb (25) | N/A | N/A | 0.4 μg/m3 (2) | 25.0 | |
| May 21, 2019, 4 p.m. | N/A | 0.0 ppb (0) | 0.5 ppb (0) | N/A | N/A | 0.0 ppb (0) | 27.0 ppb (21) | N/A | N/A | 0.4 μg/m3 (2) | 21.0 | |
| May 21, 2019, 3 p.m. | N/A | 0.1 ppb (0) | 0.5 ppb (0) | N/A | N/A | 0.0 ppb (0) | 23.0 ppb (18) | N/A | N/A | 0.0 μg/m3 (0) | 18.0 | |
| May 21, 2019, 2 p.m. | N/A | 0.1 ppb (0) | 0.5 ppb (0) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | -0.2 μg/m3 (0) | N/A | |
| May 21, 2019, 1 p.m. | N/A | 0.1 ppb (0) | 0.6 ppb (1) | N/A | N/A | 0.0 ppb (0) | 17.0 ppb (13) | N/A | N/A | 0.1 μg/m3 (0) | 13.0 | |
| May 21, 2019, noon | N/A | 0.2 ppb (0) | 0.8 ppb (1) | N/A | N/A | 0.0 ppb (0) | 16.0 ppb (12) | N/A | N/A | 0.9 μg/m3 (4) | 12.0 | |
| May 21, 2019, 11 a.m. | N/A | 0.3 ppb (0) | 1.5 ppb (1) | N/A | N/A | 0.0 ppb (0) | 17.0 ppb (13) | N/A | N/A | 3.6 μg/m3 (15) | 15.0 | |
| May 21, 2019, 10 a.m. | N/A | 0.1 ppb (0) | 1.1 ppb (1) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 5.1 μg/m3 (21) | 21.0 | |
| May 21, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 5.7 μg/m3 (24) | 24.0 | |
| May 21, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | N/A | 5.0 μg/m3 (21) | 23.0 | |
| May 21, 2019, 7 a.m. | N/A | 0.0 ppb (0) | 0.7 ppb (1) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| May 21, 2019, 6 a.m. | N/A | 0.0 ppb (0) | 0.9 ppb (1) | N/A | N/A | 0.0 ppb (0) | 36.0 ppb (28) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| May 21, 2019, 5 a.m. | N/A | 0.0 ppb (0) | 1.1 ppb (1) | N/A | N/A | 0.0 ppb (0) | 45.0 ppb (35) | N/A | N/A | 9.1 μg/m3 (38) | 38.0 | |
| May 21, 2019, 4 a.m. | N/A | 0.0 ppb (0) | 0.8 ppb (1) | N/A | N/A | 0.0 ppb (0) | 37.0 ppb (28) | N/A | N/A | 6.8 μg/m3 (28) | 28.0 | |
| May 21, 2019, 3 a.m. | N/A | 0.0 ppb (0) | 1.0 ppb (1) | N/A | N/A | 0.0 ppb (0) | 25.0 ppb (19) | N/A | N/A | 7.6 μg/m3 (32) | 32.0 | |
| May 21, 2019, 2 a.m. | N/A | 0.0 ppb (0) | 1.1 ppb (1) | N/A | N/A | 0.0 ppb (0) | 37.0 ppb (28) | N/A | N/A | 8.7 μg/m3 (36) | 36.0 | |
| May 21, 2019, 1 a.m. | N/A | 0.0 ppb (0) | 1.1 ppb (1) | N/A | N/A | 0.0 ppb (0) | 45.0 ppb (35) | N/A | N/A | 11.1 μg/m3 (46) | 46.0 | |
| May 21, 2019, midnight | N/A | 0.0 ppb (0) | 1.1 ppb (1) | N/A | N/A | 0.0 ppb (0) | 40.0 ppb (31) | N/A | N/A | 11.7 μg/m3 (49) | 49.0 | |
| May 20, 2019, 11 p.m. | N/A | 0.0 ppb (0) | 1.2 ppb (1) | N/A | N/A | 0.0 ppb (0) | 44.0 ppb (34) | N/A | N/A | 11.3 μg/m3 (47) | 47.0 | |
| May 20, 2019, 10 p.m. | N/A | 0.0 ppb (0) | 1.3 ppb (1) | N/A | N/A | 0.0 ppb (0) | 47.0 ppb (36) | N/A | N/A | 9.9 μg/m3 (41) | 41.0 | |
| May 20, 2019, 9 p.m. | N/A | 0.0 ppb (0) | 1.4 ppb (1) | N/A | N/A | 0.0 ppb (0) | 44.0 ppb (34) | N/A | N/A | 8.9 μg/m3 (37) | 37.0 | |
| May 20, 2019, 8 p.m. | N/A | 0.1 ppb (0) | 1.4 ppb (1) | N/A | N/A | 0.0 ppb (0) | 42.0 ppb (32) | N/A | N/A | 8.9 μg/m3 (37) | 37.0 | |
| May 20, 2019, 7 p.m. | N/A | 0.1 ppb (0) | 1.4 ppb (1) | N/A | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | 10.2 μg/m3 (42) | 42.0 | |
| May 20, 2019, 6 p.m. | N/A | 0.1 ppb (0) | 1.3 ppb (1) | N/A | N/A | 0.0 ppb (0) | 38.0 ppb (29) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| May 20, 2019, 5 p.m. | N/A | 0.1 ppb (0) | 1.2 ppb (1) | N/A | N/A | 0.0 ppb (0) | 36.0 ppb (28) | N/A | N/A | 6.6 μg/m3 (28) | 28.0 | |
| May 20, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 35.0 ppb (27) | N/A | N/A | 3.4 μg/m3 (14) | 27.0 | |
| May 20, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 35.0 ppb (27) | N/A | N/A | 2.6 μg/m3 (11) | 27.0 | |
| May 20, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 36.0 ppb (28) | N/A | N/A | 1.7 μg/m3 (7) | 28.0 | |
| May 20, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | N/A | 0.7 μg/m3 (3) | 25.0 | |
| May 20, 2019, noon | N/A | 0.1 ppb (0) | 1.1 ppb (1) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 0.4 μg/m3 (2) | 25.0 | |
| May 20, 2019, 11 a.m. | N/A | 0.0 ppb (0) | 0.9 ppb (1) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 0.7 μg/m3 (3) | 25.0 | |
| May 20, 2019, 10 a.m. | N/A | 0.0 ppb (0) | 0.6 ppb (1) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | N/A | N/A | 0.2 μg/m3 (1) | 23.0 | |
| May 20, 2019, 9 a.m. | N/A | 0.0 ppb (0) | 0.5 ppb (0) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | 0.2 μg/m3 (1) | 24.0 | |
| May 20, 2019, 8 a.m. | N/A | 0.0 ppb (0) | 0.6 ppb (1) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | 0.1 μg/m3 (0) | 24.0 | |
| May 20, 2019, 7 a.m. | N/A | 0.0 ppb (0) | 0.5 ppb (0) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | 0.2 μg/m3 (1) | 24.0 | |
| May 20, 2019, 6 a.m. | N/A | 0.0 ppb (0) | 0.5 ppb (0) | N/A | N/A | 0.0 ppb (0) | 33.0 ppb (25) | N/A | N/A | 0.6 μg/m3 (2) | 25.0 | |
| May 20, 2019, 5 a.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 33.0 ppb (25) | N/A | N/A | 0.7 μg/m3 (3) | 25.0 | |
| May 20, 2019, 4 a.m. | N/A | 0.0 ppb (0) | 0.6 ppb (1) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 1.9 μg/m3 (8) | 25.0 | |
| May 20, 2019, 3 a.m. | N/A | 0.0 ppb (0) | 0.5 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 2.3 μg/m3 (10) | 25.0 | |
| May 20, 2019, 2 a.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 3.5 μg/m3 (15) | 25.0 | |
| May 20, 2019, 1 a.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 33.0 ppb (25) | N/A | N/A | 3.3 μg/m3 (14) | 25.0 | |
| May 20, 2019, midnight | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 3.2 μg/m3 (13) | 25.0 | |
| May 19, 2019, 11 p.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 3.0 μg/m3 (12) | 25.0 | |
| May 19, 2019, 10 p.m. | N/A | 0.0 ppb (0) | 0.3 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 2.8 μg/m3 (12) | 25.0 | |
| May 19, 2019, 9 p.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 2.7 μg/m3 (11) | 25.0 | |
| May 19, 2019, 8 p.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 2.3 μg/m3 (10) | 25.0 | |
| May 19, 2019, 7 p.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 33.0 ppb (25) | N/A | N/A | 1.4 μg/m3 (6) | 25.0 | |
| May 19, 2019, 6 p.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 1.3 μg/m3 (5) | 25.0 | |
| May 19, 2019, 5 p.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | 1.0 μg/m3 (4) | 24.0 | |
| May 19, 2019, 4 p.m. | N/A | 0.0 ppb (0) | 0.6 ppb (1) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | N/A | N/A | 0.8 μg/m3 (3) | 23.0 | |
| May 19, 2019, 3 p.m. | N/A | 0.1 ppb (0) | 0.9 ppb (1) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | N/A | N/A | 0.8 μg/m3 (3) | 23.0 | |
| May 19, 2019, 2 p.m. | N/A | 0.0 ppb (0) | 0.7 ppb (1) | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | N/A | N/A | 0.8 μg/m3 (3) | 23.0 | |
| May 19, 2019, 1 p.m. | N/A | 0.0 ppb (0) | 0.6 ppb (1) | N/A | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | 0.8 μg/m3 (3) | 25.0 |