Hot Spgs (Prairie Vista Trl) SD, US: 43.557613, -103.483658
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| April 6, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | N/A | 11.0 μg/m3 (10) | 3.6 μg/m3 (15) | 36.0 | |
| April 6, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | N/A | 12.0 μg/m3 (11) | 1.2 μg/m3 (5) | 37.0 | |
| April 6, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | N/A | 7.0 μg/m3 (6) | 1.2 μg/m3 (5) | 35.0 | |
| April 6, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | N/A | 5.0 μg/m3 (5) | 0.7 μg/m3 (3) | 34.0 | |
| April 6, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | N/A | 7.0 μg/m3 (6) | -0.2 μg/m3 (0) | 33.0 | |
| April 6, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | N/A | 7.0 μg/m3 (6) | -0.2 μg/m3 (0) | 33.0 | |
| April 6, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | N/A | 10.0 μg/m3 (9) | 0.9 μg/m3 (4) | 34.0 | |
| April 6, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | N/A | 10.0 μg/m3 (9) | 0.7 μg/m3 (3) | 35.0 | |
| April 6, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | N/A | 8.0 μg/m3 (7) | 1.6 μg/m3 (7) | 35.0 | |
| April 6, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | 7.0 μg/m3 (6) | 0.9 μg/m3 (4) | 29.0 | |
| April 6, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 8.0 μg/m3 (7) | 0.7 μg/m3 (3) | 31.0 | |
| April 6, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | N/A | 6.0 μg/m3 (5) | 1.4 μg/m3 (6) | 36.0 | |
| April 6, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | N/A | 8.0 μg/m3 (7) | 1.9 μg/m3 (8) | 36.0 | |
| April 6, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | N/A | 8.0 μg/m3 (7) | 3.8 μg/m3 (16) | 38.0 | |
| April 6, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | N/A | 8.0 μg/m3 (7) | 2.8 μg/m3 (12) | 36.0 | |
| April 6, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | N/A | 6.0 μg/m3 (5) | 2.2 μg/m3 (9) | 37.0 | |
| April 6, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | N/A | 12.0 μg/m3 (11) | 2.4 μg/m3 (10) | 37.0 | |
| April 6, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | N/A | 9.0 μg/m3 (8) | 0.9 μg/m3 (4) | 36.0 | |
| April 6, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | N/A | 8.0 μg/m3 (7) | 2.6 μg/m3 (11) | 36.0 | |
| April 6, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | N/A | 9.0 μg/m3 (8) | 4.7 μg/m3 (20) | 37.0 | |
| April 5, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | N/A | 10.0 μg/m3 (9) | 2.6 μg/m3 (11) | 38.0 | |
| April 5, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | N/A | 9.0 μg/m3 (8) | 0.9 μg/m3 (4) | 37.0 | |
| April 5, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | N/A | 13.0 μg/m3 (12) | -1.5 μg/m3 (0) | 35.0 | |
| April 5, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 10.0 μg/m3 (9) | 0.7 μg/m3 (3) | 32.0 | |
| April 5, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 13.0 μg/m3 (12) | 2.2 μg/m3 (9) | 31.0 | |
| April 5, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 11.0 μg/m3 (10) | 2.8 μg/m3 (12) | 31.0 | |
| April 5, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 μg/m3 (11) | 4.2 μg/m3 (18) | 18.0 | |
| April 5, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 μg/m3 (11) | 4.7 μg/m3 (20) | 20.0 | |
| April 5, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | 11.0 μg/m3 (10) | 1.1 μg/m3 (5) | 28.0 | |
| April 5, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 12.0 μg/m3 (11) | 0.2 μg/m3 (1) | 26.0 | |
| April 5, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 6.0 μg/m3 (5) | 0.7 μg/m3 (3) | 27.0 | |
| April 5, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 6.0 μg/m3 (5) | 3.3 μg/m3 (14) | 31.0 | |
| April 5, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | 7.0 μg/m3 (6) | 2.4 μg/m3 (10) | 32.0 | |
| April 5, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | N/A | 2.0 μg/m3 (2) | 1.4 μg/m3 (6) | 35.0 | |
| April 5, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | N/A | 4.0 μg/m3 (4) | 2.4 μg/m3 (10) | 35.0 | |
| April 5, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | N/A | 8.0 μg/m3 (7) | 3.1 μg/m3 (13) | 34.0 | |
| April 5, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | N/A | 4.0 μg/m3 (4) | 0.7 μg/m3 (3) | 33.0 | |
| April 5, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 6.0 μg/m3 (5) | 1.4 μg/m3 (6) | 32.0 | |
| April 5, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | 9.0 μg/m3 (8) | 2.6 μg/m3 (11) | 32.0 | |
| April 5, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 8.0 μg/m3 (7) | 3.5 μg/m3 (15) | 31.0 | |
| April 5, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 6.0 μg/m3 (5) | 2.6 μg/m3 (11) | 32.0 | |
| April 5, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | N/A | 7.0 μg/m3 (6) | 2.4 μg/m3 (10) | 33.0 | |
| April 5, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 10.0 μg/m3 (9) | 0.0 μg/m3 (0) | 32.0 | |
| April 5, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | N/A | 6.0 μg/m3 (5) | -1.7 μg/m3 (0) | 36.0 | |
| April 4, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | 6.0 μg/m3 (5) | -0.2 μg/m3 (0) | 39.0 | |
| April 4, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | 5.0 μg/m3 (5) | 0.2 μg/m3 (1) | 39.0 | |
| April 4, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | N/A | 5.0 μg/m3 (5) | -0.7 μg/m3 (0) | 38.0 | |
| April 4, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (38) | N/A | 3.0 μg/m3 (3) | 1.9 μg/m3 (8) | 38.0 | |
| April 4, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | N/A | 2.0 μg/m3 (2) | 2.6 μg/m3 (11) | 36.0 | |
| April 4, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | N/A | 4.0 μg/m3 (4) | 3.1 μg/m3 (13) | 35.0 | |
| April 4, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | 5.0 μg/m3 (5) | 1.2 μg/m3 (5) | 32.0 | |
| April 4, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | 9.0 μg/m3 (8) | 3.6 μg/m3 (15) | 28.0 | |
| April 4, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 11.0 μg/m3 (10) | 4.7 μg/m3 (20) | 26.0 | |
| April 4, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 9.0 μg/m3 (8) | 1.2 μg/m3 (5) | 25.0 | |
| April 4, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 10.0 μg/m3 (9) | 0.7 μg/m3 (3) | 26.0 | |
| April 4, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 9.0 μg/m3 (8) | 2.4 μg/m3 (10) | 27.0 | |
| April 4, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | 11.0 μg/m3 (10) | 1.2 μg/m3 (5) | 28.0 | |
| April 4, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | 7.0 μg/m3 (6) | 1.1 μg/m3 (5) | 28.0 | |
| April 4, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 3.0 μg/m3 (3) | 3.3 μg/m3 (14) | 27.0 | |
| April 4, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | 3.0 μg/m3 (3) | 0.9 μg/m3 (4) | 28.0 | |
| April 4, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 5.0 μg/m3 (5) | 1.2 μg/m3 (5) | 28.0 | |
| April 4, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | 8.0 μg/m3 (7) | 4.3 μg/m3 (18) | 29.0 | |
| April 4, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 2.0 μg/m3 (2) | 7.0 μg/m3 (29) | 30.0 | |
| April 4, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 5.0 μg/m3 (5) | 4.5 μg/m3 (19) | 31.0 | |
| April 4, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 5.0 μg/m3 (5) | 3.5 μg/m3 (15) | 32.0 | |
| April 4, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | 1.0 μg/m3 (1) | 3.5 μg/m3 (15) | 32.0 | |
| April 4, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 1.0 μg/m3 (1) | 4.7 μg/m3 (20) | 28.0 | |
| April 4, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 4.0 μg/m3 (4) | 5.2 μg/m3 (22) | 28.0 | |
| April 3, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | N/A | 3.0 μg/m3 (3) | 1.7 μg/m3 (7) | 33.0 | |
| April 3, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | N/A | 2.0 μg/m3 (2) | 0.7 μg/m3 (3) | 34.0 | |
| April 3, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | N/A | 2.0 μg/m3 (2) | 2.7 μg/m3 (11) | 35.0 | |
| April 3, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | N/A | 2.0 μg/m3 (2) | 2.8 μg/m3 (12) | 34.0 | |
| April 3, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | 6.0 μg/m3 (5) | 4.5 μg/m3 (19) | 32.0 | |
| April 3, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 9.0 μg/m3 (8) | 6.5 μg/m3 (27) | 30.0 | |
| April 3, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 12.0 μg/m3 (11) | 3.8 μg/m3 (16) | 30.0 | |
| April 3, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 7.0 μg/m3 (6) | 2.4 μg/m3 (10) | 28.0 | |
| April 3, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 9.0 μg/m3 (8) | 3.8 μg/m3 (16) | 27.0 | |
| April 3, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 7.0 μg/m3 (6) | 3.3 μg/m3 (14) | 26.0 | |
| April 3, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 8.0 μg/m3 (7) | 4.5 μg/m3 (19) | 27.0 | |
| April 3, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 7.0 μg/m3 (6) | 7.0 μg/m3 (29) | 29.0 | |
| April 3, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | 8.0 μg/m3 (7) | 7.7 μg/m3 (32) | 32.0 | |
| April 3, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 6.0 μg/m3 (5) | 7.7 μg/m3 (32) | 32.0 | |
| April 3, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | 9.0 μg/m3 (8) | 7.2 μg/m3 (30) | 30.0 | |
| April 3, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 13.0 μg/m3 (12) | 6.7 μg/m3 (28) | 28.0 | |
| April 3, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 7.0 μg/m3 (6) | 4.7 μg/m3 (20) | 27.0 | |
| April 3, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 8.0 μg/m3 (7) | 2.6 μg/m3 (11) | 27.0 | |
| April 3, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 8.0 μg/m3 (7) | 3.1 μg/m3 (13) | 27.0 | |
| April 3, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | 6.0 μg/m3 (5) | 6.2 μg/m3 (26) | 28.0 | |
| April 3, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 5.0 μg/m3 (5) | 7.9 μg/m3 (33) | 33.0 | |
| April 3, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 7.0 μg/m3 (6) | 4.7 μg/m3 (20) | 28.0 | |
| April 3, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | 5.0 μg/m3 (5) | 4.7 μg/m3 (20) | 29.0 | |
| April 3, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 6.0 μg/m3 (5) | 3.8 μg/m3 (16) | 30.0 | |
| April 2, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 3.0 μg/m3 (3) | 3.3 μg/m3 (14) | 30.0 | |
| April 2, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | 7.0 μg/m3 (6) | 2.6 μg/m3 (11) | 29.0 | |
| April 2, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 3.0 μg/m3 (3) | 4.7 μg/m3 (20) | 28.0 | |
| April 2, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 4.0 μg/m3 (4) | 8.2 μg/m3 (34) | 34.0 | |
| April 2, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 2.0 μg/m3 (2) | 4.2 μg/m3 (18) | 25.0 | |
| April 2, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | 3.0 μg/m3 (3) | 3.8 μg/m3 (16) | 25.0 | |
| April 2, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 1.0 μg/m3 (1) | 4.7 μg/m3 (20) | 23.0 | |
| April 2, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | 4.0 μg/m3 (4) | 6.2 μg/m3 (26) | 26.0 | |
| April 2, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | 7.0 μg/m3 (6) | 5.2 μg/m3 (22) | 22.0 | |
| April 2, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | 4.0 μg/m3 (4) | 4.3 μg/m3 (18) | 22.0 | |
| April 2, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | -2.0 μg/m3 (0) | 3.5 μg/m3 (15) | 22.0 | |
| April 2, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | 0.0 μg/m3 (0) | 4.2 μg/m3 (18) | 22.0 | |
| April 2, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | 3.0 μg/m3 (3) | 4.2 μg/m3 (18) | 22.0 | |
| April 2, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | 4.0 μg/m3 (4) | 4.0 μg/m3 (17) | 21.0 | |
| April 2, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 7.0 μg/m3 (6) | 6.0 μg/m3 (25) | 25.0 | |
| April 2, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 6.0 μg/m3 (5) | 5.4 μg/m3 (23) | 23.0 | |
| April 2, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | 3.0 μg/m3 (3) | 5.2 μg/m3 (22) | 22.0 | |
| April 2, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | 5.0 μg/m3 (5) | 5.7 μg/m3 (24) | 24.0 | |
| April 2, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | 5.0 μg/m3 (5) | 3.5 μg/m3 (15) | 18.0 | |
| April 2, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | 6.0 μg/m3 (5) | 3.1 μg/m3 (13) | 18.0 | |
| April 2, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 9.0 μg/m3 (8) | 3.5 μg/m3 (15) | 25.0 | |
| April 2, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | 6.0 μg/m3 (5) | 3.1 μg/m3 (13) | 20.0 | |
| April 2, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | N/A | 6.0 μg/m3 (5) | 3.3 μg/m3 (14) | 14.0 | |
| April 2, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | N/A | 9.0 μg/m3 (8) | 0.1 μg/m3 (0) | 14.0 | |
| April 1, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (13) | N/A | 9.0 μg/m3 (8) | 0.7 μg/m3 (3) | 13.0 | |
| April 1, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (13) | N/A | 12.0 μg/m3 (11) | 1.6 μg/m3 (7) | 13.0 | |
| April 1, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | N/A | 13.0 μg/m3 (12) | 1.7 μg/m3 (7) | 15.0 | |
| April 1, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | 8.0 μg/m3 (7) | 0.0 μg/m3 (0) | 21.0 | |
| April 1, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | 16.0 μg/m3 (15) | 1.6 μg/m3 (7) | 21.0 | |
| April 1, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | N/A | 14.0 μg/m3 (13) | 4.3 μg/m3 (18) | 19.0 | |
| April 1, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 2.0 μg/m3 (2) | 2.2 μg/m3 (9) | 26.0 | |
| April 1, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 4.0 μg/m3 (4) | 1.2 μg/m3 (5) | 30.0 | |
| April 1, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 5.0 μg/m3 (5) | 1.4 μg/m3 (6) | 30.0 | |
| April 1, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 7.0 μg/m3 (6) | 3.3 μg/m3 (14) | 30.0 | |
| April 1, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 9.0 μg/m3 (8) | 3.8 μg/m3 (16) | 31.0 | |
| April 1, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 5.0 μg/m3 (5) | 0.9 μg/m3 (4) | 32.0 | |
| April 1, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | N/A | 7.0 μg/m3 (6) | 0.9 μg/m3 (4) | 33.0 | |
| April 1, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 9.0 μg/m3 (8) | 2.6 μg/m3 (11) | 31.0 | |
| April 1, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 7.0 μg/m3 (6) | 3.8 μg/m3 (16) | 31.0 | |
| April 1, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | 7.0 μg/m3 (6) | 3.8 μg/m3 (16) | 32.0 | |
| April 1, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | N/A | 10.0 μg/m3 (9) | 1.7 μg/m3 (7) | 33.0 | |
| April 1, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 11.0 μg/m3 (10) | -0.2 μg/m3 (0) | 32.0 | |
| April 1, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 11.0 μg/m3 (10) | 0.4 μg/m3 (2) | 31.0 | |
| April 1, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | 6.0 μg/m3 (5) | 1.7 μg/m3 (7) | 32.0 | |
| April 1, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | N/A | 9.0 μg/m3 (8) | 3.6 μg/m3 (15) | 33.0 | |
| April 1, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | N/A | 6.0 μg/m3 (5) | 2.9 μg/m3 (12) | 33.0 | |
| April 1, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | N/A | 5.0 μg/m3 (5) | 0.9 μg/m3 (4) | 34.0 | |
| April 1, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | N/A | 7.0 μg/m3 (6) | 0.9 μg/m3 (4) | 35.0 | |
| March 31, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | N/A | 6.0 μg/m3 (5) | 1.9 μg/m3 (8) | 36.0 | |
| March 31, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | N/A | 4.0 μg/m3 (4) | 2.5 μg/m3 (10) | 37.0 | |
| March 31, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | N/A | 7.0 μg/m3 (6) | 2.4 μg/m3 (10) | 37.0 | |
| March 31, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | N/A | 12.0 μg/m3 (11) | 1.2 μg/m3 (5) | 37.0 | |
| March 31, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | N/A | 19.0 μg/m3 (17) | -1.2 μg/m3 (0) | 37.0 | |
| March 31, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | N/A | 12.0 μg/m3 (11) | -0.2 μg/m3 (0) | 36.0 | |
| March 31, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | N/A | 10.0 μg/m3 (9) | 1.2 μg/m3 (5) | 34.0 | |
| March 31, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 8.0 μg/m3 (7) | 0.4 μg/m3 (2) | 32.0 | |
| March 31, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 15.0 μg/m3 (14) | 0.9 μg/m3 (4) | 32.0 | |
| March 31, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 6.0 μg/m3 (5) | -0.5 μg/m3 (0) | 30.0 | |
| March 31, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | 4.0 μg/m3 (4) | -0.9 μg/m3 (0) | 29.0 | |
| March 31, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | 5.0 μg/m3 (5) | -0.2 μg/m3 (0) | 29.0 | |
| March 31, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 6.0 μg/m3 (5) | -0.2 μg/m3 (0) | 30.0 | |
| March 31, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 6.0 μg/m3 (5) | 1.2 μg/m3 (5) | 28.0 | |
| March 31, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 5.0 μg/m3 (5) | 2.1 μg/m3 (9) | 28.0 | |
| March 31, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 11.0 μg/m3 (10) | 3.5 μg/m3 (15) | 28.0 | |
| March 31, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 8.0 μg/m3 (7) | 6.2 μg/m3 (26) | 26.0 | |
| March 31, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | 11.0 μg/m3 (10) | 7.2 μg/m3 (30) | 30.0 | |
| March 31, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 13.0 μg/m3 (12) | 4.8 μg/m3 (20) | 26.0 | |
| March 31, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 14.0 μg/m3 (13) | 3.5 μg/m3 (15) | 28.0 | |
| March 31, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | 9.0 μg/m3 (8) | 3.0 μg/m3 (12) | 29.0 | |
| March 31, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 10.0 μg/m3 (9) | 3.5 μg/m3 (15) | 30.0 | |
| March 31, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 16.0 μg/m3 (15) | 5.5 μg/m3 (23) | 30.0 | |
| March 31, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | N/A | 7.0 μg/m3 (6) | 3.5 μg/m3 (15) | 33.0 | |
| March 30, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (38) | N/A | 4.0 μg/m3 (4) | 2.0 μg/m3 (8) | 38.0 | |
| March 30, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | N/A | 4.0 μg/m3 (4) | 1.7 μg/m3 (7) | 37.0 | |
| March 30, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (38) | N/A | 6.0 μg/m3 (5) | 1.4 μg/m3 (6) | 38.0 | |
| March 30, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | N/A | 4.0 μg/m3 (4) | 1.4 μg/m3 (6) | 38.0 |