Ware (Enfield) MA, US: 42.298302, -72.334396
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 28, 2020, 3 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 1.5 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | N/A | N/A | N/A | 31.0 | |
| March 28, 2020, 2 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.9 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| March 28, 2020, 1 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.9 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 38.0 ppb (29) | N/A | N/A | N/A | 29.0 | |
| March 28, 2020, noon | 1.0 ppb (1) | 0.0 ppb (0) | 1.1 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 38.0 ppb (29) | N/A | N/A | N/A | 29.0 | |
| March 28, 2020, 11 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 1.0 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| March 28, 2020, 10 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.9 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | N/A | N/A | N/A | 32.0 | |
| March 28, 2020, 9 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.8 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| March 28, 2020, 8 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.7 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| March 28, 2020, 7 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.7 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| March 28, 2020, 6 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.6 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | N/A | N/A | N/A | 31.0 | |
| March 28, 2020, 5 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.7 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | N/A | N/A | N/A | 32.0 | |
| March 28, 2020, 4 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.5 ppb (0) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | N/A | N/A | N/A | 32.0 | |
| March 28, 2020, 3 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.6 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | N/A | N/A | N/A | 32.0 | |
| March 28, 2020, 2 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.6 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | N/A | N/A | N/A | 32.0 | |
| March 28, 2020, 1 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.5 ppb (0) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 47.0 ppb (36) | N/A | N/A | N/A | 36.0 | |
| March 28, 2020, midnight | 1.0 ppb (1) | 0.0 ppb (0) | 0.6 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | N/A | N/A | N/A | 37.0 | |
| March 27, 2020, 11 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.6 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | N/A | N/A | N/A | 37.0 | |
| March 27, 2020, 10 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.7 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 47.0 ppb (36) | N/A | N/A | N/A | 36.0 | |
| March 27, 2020, 9 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.7 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 47.0 ppb (36) | N/A | N/A | N/A | 36.0 | |
| March 27, 2020, 8 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.8 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | N/A | N/A | N/A | 37.0 | |
| March 27, 2020, 7 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.7 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 47.0 ppb (36) | N/A | N/A | N/A | 36.0 | |
| March 27, 2020, 6 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.8 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 46.0 ppb (35) | N/A | N/A | N/A | 35.0 | |
| March 27, 2020, 5 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.8 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | N/A | N/A | N/A | 37.0 | |
| March 27, 2020, 4 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.7 ppb (1) | 1.0 ppb (1) | N/A | N/A | 48.0 ppb (37) | N/A | N/A | N/A | 37.0 | |
| March 27, 2020, 3 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.9 ppb (1) | 1.0 ppb (1) | N/A | N/A | 47.0 ppb (36) | N/A | N/A | N/A | 36.0 | |
| March 27, 2020, 2 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 1.3 ppb (1) | 1.0 ppb (1) | N/A | N/A | 44.0 ppb (34) | N/A | N/A | N/A | 34.0 | |
| March 27, 2020, 1 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | 2.0 ppb (2) | 2.0 ppb (2) | N/A | N/A | 38.0 ppb (29) | N/A | N/A | N/A | 29.0 | |
| March 27, 2020, noon | 4.0 ppb (4) | 1.0 ppb (1) | 4.9 ppb (5) | 4.0 ppb (4) | N/A | N/A | 34.0 ppb (26) | N/A | N/A | N/A | 26.0 | |
| March 27, 2020, 11 a.m. | 7.0 ppb (6) | 0.0 ppb (0) | 8.4 ppb (8) | 7.0 ppb (6) | N/A | N/A | 32.0 ppb (25) | N/A | N/A | N/A | 25.0 | |
| March 27, 2020, 10 a.m. | 6.0 ppb (6) | 0.0 ppb (0) | 8.0 ppb (7) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | N/A | 24.0 | |
| March 27, 2020, 9 a.m. | 5.0 ppb (5) | 0.0 ppb (0) | 7.3 ppb (7) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | N/A | 25.0 | |
| March 27, 2020, 8 a.m. | 6.0 ppb (6) | 0.0 ppb (0) | 7.6 ppb (7) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | N/A | 25.0 | |
| March 27, 2020, 7 a.m. | 6.0 ppb (6) | 0.0 ppb (0) | 7.7 ppb (7) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 33.0 ppb (25) | N/A | N/A | N/A | 25.0 | |
| March 27, 2020, 6 a.m. | 6.0 ppb (6) | 0.0 ppb (0) | 8.0 ppb (7) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 34.0 ppb (26) | N/A | N/A | N/A | 26.0 | |
| March 27, 2020, 5 a.m. | 7.0 ppb (6) | 0.0 ppb (0) | 9.1 ppb (8) | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 33.0 ppb (25) | N/A | N/A | N/A | 25.0 | |
| March 27, 2020, 4 a.m. | 8.0 ppb (7) | 0.0 ppb (0) | 10.5 ppb (10) | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 33.0 ppb (25) | N/A | N/A | N/A | 25.0 | |
| March 27, 2020, 3 a.m. | 9.0 ppb (8) | 0.0 ppb (0) | 12.2 ppb (11) | 9.0 ppb (8) | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | N/A | 25.0 | |
| March 27, 2020, 2 a.m. | 8.0 ppb (7) | 0.0 ppb (0) | 9.9 ppb (9) | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 36.0 ppb (28) | N/A | N/A | N/A | 28.0 | |
| March 27, 2020, 1 a.m. | 4.0 ppb (4) | 0.0 ppb (0) | 5.2 ppb (5) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | N/A | 33.0 | |
| March 27, 2020, midnight | 3.0 ppb (3) | 0.0 ppb (0) | 2.9 ppb (3) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | N/A | N/A | N/A | 37.0 | |
| March 26, 2020, 11 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | 2.1 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 49.0 ppb (38) | N/A | N/A | N/A | 38.0 | |
| March 26, 2020, 10 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | 2.1 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 49.0 ppb (38) | N/A | N/A | N/A | 38.0 | |
| March 26, 2020, 9 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 51.0 ppb (39) | N/A | N/A | N/A | 39.0 | |
| March 26, 2020, 8 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | N/A | N/A | N/A | 38.0 | |
| March 26, 2020, 7 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 49.0 ppb (38) | N/A | N/A | N/A | 38.0 | |
| March 26, 2020, 6 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 47.0 ppb (36) | N/A | N/A | N/A | 36.0 | |
| March 26, 2020, 5 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | N/A | N/A | N/A | 34.0 | |
| March 26, 2020, 4 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | N/A | 33.0 | |
| March 26, 2020, 3 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | N/A | 33.0 | |
| March 26, 2020, 2 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| March 26, 2020, 1 p.m. | 0.8 ppb (1) | 0.1 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| March 26, 2020, noon | 0.7 ppb (1) | 0.2 ppb (0) | 4.7 ppb (4) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| March 26, 2020, 11 a.m. | 0.6 ppb (1) | 0.1 ppb (0) | 0.8 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| March 26, 2020, 10 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.8 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| March 26, 2020, 9 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.9 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| March 26, 2020, 8 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.8 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| March 26, 2020, 7 a.m. | N/A | N/A | 0.9 ppb (1) | N/A | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| March 26, 2020, 6 a.m. | N/A | N/A | 1.1 ppb (1) | N/A | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| March 26, 2020, 5 a.m. | N/A | N/A | 1.1 ppb (1) | N/A | N/A | 0.0 ppb (0) | 41.0 ppb (32) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| March 26, 2020, 4 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 1.1 ppb (1) | 1.0 ppb (1) | N/A | N/A | 41.0 ppb (32) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| March 26, 2020, 3 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 1.1 ppb (1) | 1.0 ppb (1) | N/A | N/A | 42.0 ppb (32) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| March 26, 2020, 2 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 1.3 ppb (1) | 1.0 ppb (1) | N/A | N/A | 42.0 ppb (32) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| March 26, 2020, 1 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| March 26, 2020, midnight | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 6.0 μg/m3 (25) | 33.0 | |
| March 25, 2020, 11 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 4.0 μg/m3 (17) | 33.0 | |
| March 25, 2020, 10 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 1.7 ppb (2) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 7.0 μg/m3 (29) | 33.0 | |
| March 25, 2020, 9 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | 1.7 ppb (2) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 6.0 μg/m3 (25) | 33.0 | |
| March 25, 2020, 8 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | 1.9 ppb (2) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 7.0 μg/m3 (29) | 33.0 | |
| March 25, 2020, 7 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | 2.1 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| March 25, 2020, 6 p.m. | 3.0 ppb (3) | 0.0 ppb (0) | 3.2 ppb (3) | 3.0 ppb (3) | N/A | N/A | 39.0 ppb (30) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| March 25, 2020, 5 p.m. | 4.0 ppb (4) | 1.0 ppb (1) | 4.4 ppb (4) | 4.0 ppb (4) | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 15.0 μg/m3 (56) | 56.0 | |
| March 25, 2020, 4 p.m. | 4.0 ppb (4) | 1.0 ppb (1) | 4.3 ppb (4) | 3.0 ppb (3) | N/A | N/A | 37.0 ppb (28) | N/A | N/A | N/A | 28.0 | |
| March 25, 2020, 3 p.m. | 4.0 ppb (4) | 1.0 ppb (1) | 3.6 ppb (3) | 3.0 ppb (3) | N/A | N/A | 39.0 ppb (30) | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| March 25, 2020, 2 p.m. | 3.0 ppb (3) | 0.0 ppb (0) | 3.3 ppb (3) | 3.0 ppb (3) | N/A | N/A | 38.0 ppb (29) | N/A | N/A | N/A | 29.0 | |
| March 25, 2020, 1 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | 2.4 ppb (2) | 2.0 ppb (2) | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| March 25, 2020, noon | 1.0 ppb (1) | 0.0 ppb (0) | 1.6 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 38.0 ppb (29) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| March 25, 2020, 11 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 1.4 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 38.0 ppb (29) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| March 25, 2020, 10 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 1.2 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 38.0 ppb (29) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| March 25, 2020, 9 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 1.1 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 38.0 ppb (29) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| March 25, 2020, 8 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 1.1 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 38.0 ppb (29) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| March 25, 2020, 7 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 1.0 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 36.0 ppb (28) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| March 25, 2020, 6 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.9 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 35.0 ppb (27) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| March 25, 2020, 5 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.8 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 37.0 ppb (28) | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| March 25, 2020, 4 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.8 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| March 25, 2020, 3 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.8 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | N/A | N/A | 6.0 μg/m3 (25) | 32.0 | |
| March 25, 2020, 2 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.8 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| March 25, 2020, 1 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.8 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| March 25, 2020, midnight | 1.0 ppb (1) | 0.0 ppb (0) | 0.8 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | N/A | N/A | 7.0 μg/m3 (29) | 32.0 | |
| March 24, 2020, 11 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.8 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | N/A | N/A | 6.0 μg/m3 (25) | 32.0 | |
| March 24, 2020, 10 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.8 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 7.0 μg/m3 (29) | 33.0 | |
| March 24, 2020, 9 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.7 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 7.0 μg/m3 (29) | 33.0 | |
| March 24, 2020, 8 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.8 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| March 24, 2020, 7 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.8 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | N/A | N/A | 4.0 μg/m3 (17) | 34.0 | |
| March 24, 2020, 6 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.7 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | N/A | N/A | 6.0 μg/m3 (25) | 34.0 | |
| March 24, 2020, 5 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.7 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | N/A | N/A | 6.0 μg/m3 (25) | 34.0 | |
| March 24, 2020, 4 p.m. | 2.0 ppb (2) | 1.0 ppb (1) | 1.6 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| March 24, 2020, 3 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.7 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| March 24, 2020, 2 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.7 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| March 24, 2020, 1 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.6 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | 7.0 μg/m3 (29) | 30.0 | |
| March 24, 2020, noon | 1.0 ppb (1) | 0.0 ppb (0) | 0.5 ppb (0) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| March 24, 2020, 11 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.5 ppb (0) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| March 24, 2020, 10 a.m. | 0.0 ppb (0) | 0.0 ppb (0) | 0.5 ppb (0) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | 5.0 μg/m3 (21) | 30.0 | |
| March 24, 2020, 9 a.m. | 0.0 ppb (0) | 0.0 ppb (0) | 0.6 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | 38.0 ppb (29) | N/A | N/A | 6.0 μg/m3 (25) | 29.0 | |
| March 24, 2020, 8 a.m. | 0.0 ppb (0) | 0.0 ppb (0) | 0.5 ppb (0) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | 5.0 μg/m3 (21) | 30.0 | |
| March 24, 2020, 7 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.5 ppb (0) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | N/A | N/A | 4.0 μg/m3 (17) | 31.0 | |
| March 24, 2020, 6 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.6 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | N/A | N/A | 5.0 μg/m3 (21) | 31.0 | |
| March 24, 2020, 5 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.6 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | 5.0 μg/m3 (21) | 30.0 | |
| March 24, 2020, 4 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.7 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | 6.0 μg/m3 (25) | 30.0 | |
| March 24, 2020, 3 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.9 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | 5.0 μg/m3 (21) | 30.0 | |
| March 24, 2020, 2 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 1.0 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 38.0 ppb (29) | N/A | N/A | 6.0 μg/m3 (25) | 29.0 | |
| March 24, 2020, 1 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 1.1 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | N/A | N/A | 5.0 μg/m3 (21) | 31.0 | |
| March 24, 2020, midnight | 2.0 ppb (2) | 0.0 ppb (0) | 1.9 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| March 23, 2020, 11 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | 2.2 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| March 23, 2020, 10 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | 1.7 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| March 23, 2020, 9 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | 1.9 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | N/A | N/A | 7.0 μg/m3 (29) | 32.0 | |
| March 23, 2020, 8 p.m. | 3.0 ppb (3) | 0.0 ppb (0) | 2.8 ppb (3) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | N/A | N/A | 6.0 μg/m3 (25) | 32.0 | |
| March 23, 2020, 7 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | 2.3 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| March 23, 2020, 6 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | 2.2 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| March 23, 2020, 5 p.m. | 3.0 ppb (3) | 0.0 ppb (0) | 2.7 ppb (3) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| March 23, 2020, 4 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | 2.5 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| March 23, 2020, 3 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | 2.0 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| March 23, 2020, 2 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | 2.1 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| March 23, 2020, 1 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | 2.3 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| March 23, 2020, noon | 2.0 ppb (2) | 0.0 ppb (0) | 2.3 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| March 23, 2020, 11 a.m. | 2.0 ppb (2) | 0.0 ppb (0) | 1.8 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| March 23, 2020, 10 a.m. | 2.0 ppb (2) | 0.0 ppb (0) | 2.0 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| March 23, 2020, 9 a.m. | 2.0 ppb (2) | 0.0 ppb (0) | 2.2 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| March 23, 2020, 8 a.m. | 2.0 ppb (2) | 0.0 ppb (0) | 2.2 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| March 23, 2020, 7 a.m. | N/A | N/A | 1.8 ppb (2) | N/A | N/A | 0.0 ppb (0) | 40.0 ppb (31) | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| March 23, 2020, 6 a.m. | N/A | N/A | 1.4 ppb (1) | N/A | N/A | 0.0 ppb (0) | 41.0 ppb (32) | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| March 23, 2020, 5 a.m. | N/A | N/A | 1.2 ppb (1) | N/A | N/A | 0.0 ppb (0) | 42.0 ppb (32) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| March 23, 2020, 4 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 1.4 ppb (1) | 1.0 ppb (1) | N/A | N/A | 42.0 ppb (32) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| March 23, 2020, 3 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 1.4 ppb (1) | 1.0 ppb (1) | N/A | N/A | 42.0 ppb (32) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| March 23, 2020, 2 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 1.3 ppb (1) | 1.0 ppb (1) | N/A | N/A | 42.0 ppb (32) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| March 23, 2020, 1 a.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| March 23, 2020, midnight | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 47.0 ppb (36) | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| March 22, 2020, 11 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| March 22, 2020, 10 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.8 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | N/A | N/A | 6.0 μg/m3 (25) | 35.0 | |
| March 22, 2020, 9 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.8 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | N/A | N/A | 5.0 μg/m3 (21) | 35.0 | |
| March 22, 2020, 8 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.7 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| March 22, 2020, 7 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.7 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| March 22, 2020, 6 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.8 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | N/A | N/A | 8.0 μg/m3 (33) | 34.0 | |
| March 22, 2020, 5 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.9 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| March 22, 2020, 4 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.9 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| March 22, 2020, 3 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 1.0 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| March 22, 2020, 2 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.9 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| March 22, 2020, 1 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.9 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| March 22, 2020, noon | 1.0 ppb (1) | 0.0 ppb (0) | 0.9 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| March 22, 2020, 11 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 1.0 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| March 22, 2020, 10 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 1.0 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| March 22, 2020, 9 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 1.1 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| March 22, 2020, 8 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.9 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| March 22, 2020, 7 a.m. | 0.0 ppb (0) | 0.0 ppb (0) | 0.7 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| March 22, 2020, 6 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.8 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| March 22, 2020, 5 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.9 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| March 22, 2020, 4 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.9 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| March 22, 2020, 3 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.8 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 7.0 μg/m3 (29) | 33.0 | |
| March 22, 2020, 2 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.6 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 6.0 μg/m3 (25) | 33.0 | |
| March 22, 2020, 1 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.7 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | N/A | N/A | 7.0 μg/m3 (29) | 34.0 | |
| March 22, 2020, midnight | 1.0 ppb (1) | 0.0 ppb (0) | 0.7 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | N/A | N/A | 5.0 μg/m3 (21) | 35.0 | |
| March 21, 2020, 11 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.7 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | N/A | N/A | 5.0 μg/m3 (21) | 35.0 | |
| March 21, 2020, 10 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.6 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 7.0 μg/m3 (29) | 33.0 | |
| March 21, 2020, 9 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.6 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 5.0 μg/m3 (21) | 33.0 | |
| March 21, 2020, 8 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.6 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 7.0 μg/m3 (29) | 33.0 | |
| March 21, 2020, 7 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.6 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | N/A | N/A | 7.0 μg/m3 (29) | 34.0 | |
| March 21, 2020, 6 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.6 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 6.0 μg/m3 (25) | 33.0 | |
| March 21, 2020, 5 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.6 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | N/A | N/A | 6.0 μg/m3 (25) | 33.0 | |
| March 21, 2020, 4 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | 0.6 ppb (1) | 0.0 ppb (0) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | N/A | N/A | 7.0 μg/m3 (29) | 34.0 |