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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sept. 25, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 57.0 ppb (44) | N/A | 31.5 μg/m3 (29) | 15.4 μg/m3 (57) | 57.0 | |
| Sept. 25, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 57.0 ppb (44) | N/A | 29.8 μg/m3 (27) | 11.9 μg/m3 (50) | 50.0 | |
| Sept. 25, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 57.0 ppb (44) | N/A | 23.5 μg/m3 (21) | 12.4 μg/m3 (51) | 51.0 | |
| Sept. 24, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (45) | N/A | 17.2 μg/m3 (16) | 4.7 μg/m3 (20) | 45.0 | |
| Sept. 24, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 59.0 ppb (45) | N/A | 17.4 μg/m3 (16) | 5.2 μg/m3 (22) | 45.0 | |
| Sept. 24, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 60.0 ppb (46) | N/A | 20.8 μg/m3 (19) | 7.4 μg/m3 (31) | 46.0 | |
| Sept. 24, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 59.0 ppb (45) | N/A | 23.5 μg/m3 (21) | 10.2 μg/m3 (42) | 45.0 | |
| Sept. 24, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (45) | N/A | 19.6 μg/m3 (18) | 7.9 μg/m3 (33) | 45.0 | |
| Sept. 24, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 57.0 ppb (44) | N/A | 23.0 μg/m3 (21) | 8.4 μg/m3 (35) | 44.0 | |
| Sept. 24, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 57.0 ppb (44) | N/A | 25.5 μg/m3 (23) | 10.7 μg/m3 (45) | 45.0 | |
| Sept. 24, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (42) | N/A | 25.7 μg/m3 (23) | 11.9 μg/m3 (50) | 50.0 | |
| Sept. 24, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (43) | N/A | 29.1 μg/m3 (26) | 13.4 μg/m3 (53) | 53.0 | |
| Sept. 24, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (42) | N/A | 25.2 μg/m3 (23) | 8.7 μg/m3 (36) | 42.0 | |
| Sept. 24, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | N/A | 33.3 μg/m3 (30) | 17.0 μg/m3 (61) | 61.0 | |
| Sept. 24, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (42) | N/A | 34.5 μg/m3 (31) | 15.1 μg/m3 (57) | 57.0 | |
| Sept. 24, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (42) | N/A | 30.3 μg/m3 (28) | 13.7 μg/m3 (54) | 54.0 | |
| Sept. 24, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (42) | N/A | 31.0 μg/m3 (28) | 11.4 μg/m3 (48) | 48.0 | |
| Sept. 24, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (43) | N/A | 30.0 μg/m3 (27) | 14.4 μg/m3 (55) | 55.0 | |
| Sept. 24, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 57.0 ppb (44) | N/A | 31.0 μg/m3 (28) | 12.2 μg/m3 (50) | 50.0 | |
| Sept. 24, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (43) | N/A | 21.0 μg/m3 (19) | 8.4 μg/m3 (35) | 43.0 | |
| Sept. 24, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (42) | N/A | 18.0 μg/m3 (16) | 8.2 μg/m3 (34) | 42.0 | |
| Sept. 24, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (42) | N/A | 24.0 μg/m3 (22) | 8.7 μg/m3 (36) | 42.0 | |
| Sept. 24, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (43) | N/A | 20.0 μg/m3 (18) | 11.2 μg/m3 (47) | 47.0 | |
| Sept. 24, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (42) | N/A | 19.0 μg/m3 (17) | 11.2 μg/m3 (47) | 47.0 | |
| Sept. 24, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (42) | N/A | 23.0 μg/m3 (21) | 16.8 μg/m3 (60) | 60.0 | |
| Sept. 24, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (45) | N/A | 33.0 μg/m3 (30) | 14.4 μg/m3 (55) | 55.0 | |
| Sept. 24, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 59.0 ppb (45) | N/A | 28.0 μg/m3 (25) | 13.4 μg/m3 (53) | 53.0 | |
| Sept. 23, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 61.0 ppb (47) | N/A | 31.0 μg/m3 (28) | 13.9 μg/m3 (54) | 54.0 | |
| Sept. 23, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 63.0 ppb (48) | N/A | 26.0 μg/m3 (24) | 15.5 μg/m3 (57) | 57.0 | |
| Sept. 23, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 61.0 ppb (47) | N/A | 29.0 μg/m3 (26) | 14.4 μg/m3 (55) | 55.0 | |
| Sept. 23, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 61.0 ppb (47) | N/A | 28.0 μg/m3 (25) | 13.6 μg/m3 (53) | 53.0 | |
| Sept. 23, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 59.0 ppb (45) | N/A | 24.0 μg/m3 (22) | 10.1 μg/m3 (42) | 45.0 | |
| Sept. 23, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (45) | N/A | 25.0 μg/m3 (23) | 9.9 μg/m3 (41) | 45.0 | |
| Sept. 23, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 57.0 ppb (44) | N/A | 31.0 μg/m3 (28) | 12.9 μg/m3 (52) | 52.0 | |
| Sept. 23, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (42) | N/A | 21.0 μg/m3 (19) | 11.2 μg/m3 (47) | 47.0 | |
| Sept. 23, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (42) | N/A | 17.0 μg/m3 (15) | 6.7 μg/m3 (28) | 42.0 | |
| Sept. 23, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | N/A | 19.0 μg/m3 (17) | 9.1 μg/m3 (38) | 40.0 | |
| Sept. 23, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | N/A | 25.0 μg/m3 (23) | 11.4 μg/m3 (48) | 48.0 | |
| Sept. 23, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (41) | N/A | 21.0 μg/m3 (19) | 9.4 μg/m3 (39) | 41.0 | |
| Sept. 23, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (43) | N/A | 20.0 μg/m3 (18) | 8.2 μg/m3 (34) | 43.0 | |
| Sept. 23, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 57.0 ppb (44) | N/A | 22.0 μg/m3 (20) | 11.2 μg/m3 (47) | 47.0 | |
| Sept. 23, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 59.0 ppb (45) | N/A | 23.0 μg/m3 (21) | 14.1 μg/m3 (54) | 54.0 | |
| Sept. 23, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 61.0 ppb (47) | N/A | 36.0 μg/m3 (33) | 14.6 μg/m3 (56) | 56.0 | |
| Sept. 23, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 63.0 ppb (48) | N/A | 32.0 μg/m3 (29) | 12.4 μg/m3 (51) | 51.0 | |
| Sept. 23, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 60.0 ppb (46) | N/A | 28.0 μg/m3 (25) | 11.7 μg/m3 (49) | 49.0 | |
| Sept. 23, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 61.0 ppb (47) | N/A | 23.0 μg/m3 (21) | 15.8 μg/m3 (58) | 58.0 | |
| Sept. 23, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 61.0 ppb (47) | N/A | 31.0 μg/m3 (28) | 15.1 μg/m3 (57) | 57.0 | |
| Sept. 23, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 62.0 ppb (48) | N/A | 22.0 μg/m3 (20) | 12.5 μg/m3 (51) | 51.0 | |
| Sept. 23, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 61.0 ppb (47) | N/A | 19.0 μg/m3 (17) | 16.6 μg/m3 (60) | 60.0 | |
| Sept. 23, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 62.0 ppb (48) | N/A | 25.0 μg/m3 (23) | 8.7 μg/m3 (36) | 48.0 | |
| Sept. 23, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 63.0 ppb (48) | N/A | 25.0 μg/m3 (23) | 10.4 μg/m3 (43) | 48.0 | |
| Sept. 22, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 65.0 ppb (50) | N/A | 20.0 μg/m3 (18) | 14.6 μg/m3 (56) | 56.0 | |
| Sept. 22, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 64.0 ppb (49) | N/A | 36.0 μg/m3 (33) | 10.1 μg/m3 (42) | 49.0 | |
| Sept. 22, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 62.0 ppb (48) | N/A | 33.0 μg/m3 (30) | 12.2 μg/m3 (50) | 50.0 | |
| Sept. 22, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 60.0 ppb (46) | N/A | 34.0 μg/m3 (31) | 9.9 μg/m3 (41) | 46.0 | |
| Sept. 22, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 57.0 ppb (44) | N/A | 43.0 μg/m3 (39) | 15.5 μg/m3 (57) | 57.0 | |
| Sept. 22, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 57.0 ppb (44) | N/A | 49.0 μg/m3 (45) | 10.2 μg/m3 (42) | 45.0 | |
| Sept. 22, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (43) | N/A | 32.0 μg/m3 (29) | 7.9 μg/m3 (33) | 43.0 | |
| Sept. 22, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | N/A | 45.0 μg/m3 (41) | 10.6 μg/m3 (44) | 44.0 | |
| Sept. 22, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (38) | N/A | 24.0 μg/m3 (22) | 7.7 μg/m3 (32) | 38.0 | |
| Sept. 22, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | N/A | 40.0 μg/m3 (36) | 8.7 μg/m3 (36) | 36.0 | |
| Sept. 22, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | 35.0 μg/m3 (32) | 9.2 μg/m3 (38) | 39.0 | |
| Sept. 22, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (42) | N/A | 23.0 μg/m3 (21) | 11.2 μg/m3 (47) | 47.0 | |
| Sept. 22, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (42) | N/A | 28.0 μg/m3 (25) | 13.9 μg/m3 (54) | 54.0 | |
| Sept. 22, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (41) | N/A | 27.0 μg/m3 (25) | 11.9 μg/m3 (50) | 50.0 | |
| Sept. 22, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | N/A | 33.0 μg/m3 (30) | 10.7 μg/m3 (45) | 45.0 | |
| Sept. 22, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (41) | N/A | 28.0 μg/m3 (25) | 8.9 μg/m3 (37) | 41.0 | |
| Sept. 22, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (41) | N/A | 25.0 μg/m3 (23) | 9.9 μg/m3 (41) | 41.0 | |
| Sept. 22, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (41) | N/A | 21.0 μg/m3 (19) | 7.2 μg/m3 (30) | 41.0 | |
| Sept. 22, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (41) | N/A | 17.0 μg/m3 (15) | 8.4 μg/m3 (35) | 41.0 | |
| Sept. 22, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (41) | N/A | 15.0 μg/m3 (14) | 7.9 μg/m3 (33) | 41.0 | |
| Sept. 22, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (41) | N/A | 16.0 μg/m3 (15) | 8.0 μg/m3 (33) | 41.0 | |
| Sept. 22, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | N/A | 21.0 μg/m3 (19) | 5.7 μg/m3 (24) | 40.0 | |
| Sept. 22, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (43) | N/A | 14.0 μg/m3 (13) | 5.3 μg/m3 (22) | 43.0 | |
| Sept. 22, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 60.0 ppb (46) | N/A | 4.0 μg/m3 (4) | 5.7 μg/m3 (24) | 46.0 | |
| Sept. 21, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 60.0 ppb (46) | N/A | 15.0 μg/m3 (14) | 5.5 μg/m3 (23) | 46.0 | |
| Sept. 21, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 59.0 ppb (45) | N/A | 10.0 μg/m3 (9) | 4.0 μg/m3 (17) | 45.0 | |
| Sept. 21, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (45) | N/A | 7.0 μg/m3 (6) | 6.5 μg/m3 (27) | 45.0 | |
| Sept. 21, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (42) | N/A | 15.0 μg/m3 (14) | 6.0 μg/m3 (25) | 42.0 | |
| Sept. 21, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | 26.0 μg/m3 (24) | 6.2 μg/m3 (26) | 39.0 | |
| Sept. 21, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | N/A | 17.0 μg/m3 (15) | 7.2 μg/m3 (30) | 38.0 | |
| Sept. 21, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (38) | N/A | 21.0 μg/m3 (19) | 4.5 μg/m3 (19) | 38.0 | |
| Sept. 21, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | N/A | 14.0 μg/m3 (13) | 6.0 μg/m3 (25) | 36.0 | |
| Sept. 21, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | N/A | 19.0 μg/m3 (17) | 5.2 μg/m3 (22) | 36.0 | |
| Sept. 21, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | N/A | 58.0 μg/m3 (52) | 6.2 μg/m3 (26) | 52.0 | |
| Sept. 21, 2020, 1 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) | 5.3 μg/m3 (22) | 36.0 | |
| Sept. 21, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (38) | N/A | 13.0 μg/m3 (12) | 7.2 μg/m3 (30) | 38.0 | |
| Sept. 21, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (38) | N/A | 14.0 μg/m3 (13) | 7.7 μg/m3 (32) | 38.0 | |
| Sept. 21, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (38) | N/A | 17.0 μg/m3 (15) | 7.5 μg/m3 (31) | 38.0 | |
| Sept. 21, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | N/A | 16.0 μg/m3 (15) | 4.8 μg/m3 (20) | 37.0 | |
| Sept. 21, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (38) | N/A | 16.0 μg/m3 (15) | 7.4 μg/m3 (31) | 38.0 | |
| Sept. 21, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | N/A | 18.0 μg/m3 (16) | 8.7 μg/m3 (36) | 38.0 | |
| Sept. 21, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | 19.0 μg/m3 (17) | 14.9 μg/m3 (56) | 56.0 | |
| Sept. 21, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | 15.0 μg/m3 (14) | 8.9 μg/m3 (37) | 39.0 | |
| Sept. 21, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | 20.0 μg/m3 (18) | 4.5 μg/m3 (19) | 39.0 | |
| Sept. 21, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | N/A | 17.0 μg/m3 (15) | 3.5 μg/m3 (15) | 38.0 | |
| Sept. 21, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | N/A | 16.0 μg/m3 (15) | 5.5 μg/m3 (23) | 38.0 | |
| Sept. 21, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | N/A | 14.0 μg/m3 (13) | 7.7 μg/m3 (32) | 40.0 | |
| Sept. 21, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (42) | N/A | 11.0 μg/m3 (10) | 6.0 μg/m3 (25) | 42.0 | |
| Sept. 20, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (42) | N/A | 15.0 μg/m3 (14) | 7.0 μg/m3 (29) | 42.0 | |
| Sept. 20, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (41) | N/A | 14.0 μg/m3 (13) | 9.2 μg/m3 (38) | 41.0 | |
| Sept. 20, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (41) | N/A | 16.0 μg/m3 (15) | 6.0 μg/m3 (25) | 41.0 | |
| Sept. 20, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (41) | N/A | 15.0 μg/m3 (14) | 8.2 μg/m3 (34) | 41.0 | |
| Sept. 20, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (41) | N/A | 13.0 μg/m3 (12) | 7.2 μg/m3 (30) | 41.0 | |
| Sept. 20, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | N/A | 12.0 μg/m3 (11) | 8.2 μg/m3 (34) | 40.0 | |
| Sept. 20, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | 14.0 μg/m3 (13) | 6.2 μg/m3 (26) | 39.0 | |
| Sept. 20, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (38) | N/A | 16.0 μg/m3 (15) | 7.5 μg/m3 (31) | 38.0 | |
| Sept. 20, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | N/A | 16.0 μg/m3 (15) | 4.5 μg/m3 (19) | 38.0 | |
| Sept. 20, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | N/A | 20.0 μg/m3 (18) | 5.0 μg/m3 (21) | 35.0 | |
| Sept. 20, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | 21.0 μg/m3 (19) | 9.4 μg/m3 (39) | 39.0 | |
| Sept. 20, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 22.0 μg/m3 (20) | 12.7 μg/m3 (51) | 51.0 | |
| Sept. 20, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | N/A | 21.0 μg/m3 (19) | 10.4 μg/m3 (43) | 43.0 | |
| Sept. 20, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | N/A | 23.0 μg/m3 (21) | 9.2 μg/m3 (38) | 38.0 | |
| Sept. 20, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | 15.0 μg/m3 (14) | 5.3 μg/m3 (22) | 39.0 | |
| Sept. 20, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (43) | N/A | 18.0 μg/m3 (16) | 9.4 μg/m3 (39) | 43.0 | |
| Sept. 20, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (43) | N/A | 26.0 μg/m3 (24) | 7.7 μg/m3 (32) | 43.0 | |
| Sept. 20, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (41) | N/A | 17.0 μg/m3 (15) | 5.0 μg/m3 (21) | 41.0 | |
| Sept. 20, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (41) | N/A | 21.0 μg/m3 (19) | 8.2 μg/m3 (34) | 41.0 | |
| Sept. 20, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (42) | N/A | 28.0 μg/m3 (25) | 8.9 μg/m3 (37) | 42.0 | |
| Sept. 20, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (42) | N/A | 40.0 μg/m3 (36) | 8.7 μg/m3 (36) | 42.0 | |
| Sept. 20, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 59.0 ppb (45) | N/A | 37.0 μg/m3 (34) | 6.7 μg/m3 (28) | 45.0 | |
| Sept. 20, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 61.0 ppb (47) | N/A | 24.0 μg/m3 (22) | 16.3 μg/m3 (59) | 59.0 | |
| Sept. 20, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 63.0 ppb (48) | N/A | 37.0 μg/m3 (34) | 18.5 μg/m3 (64) | 64.0 | |
| Sept. 19, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 64.0 ppb (49) | N/A | 31.0 μg/m3 (28) | 17.0 μg/m3 (61) | 61.0 | |
| Sept. 19, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 67.0 ppb (52) | N/A | 35.0 μg/m3 (32) | 18.0 μg/m3 (63) | 63.0 | |
| Sept. 19, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 66.0 ppb (51) | N/A | 43.0 μg/m3 (39) | 22.3 μg/m3 (72) | 72.0 | |
| Sept. 19, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (45) | N/A | 50.0 μg/m3 (45) | 22.0 μg/m3 (71) | 71.0 | |
| Sept. 19, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (43) | N/A | 43.0 μg/m3 (39) | N/A | 43.0 | |
| Sept. 19, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (42) | N/A | 45.0 μg/m3 (41) | 24.0 μg/m3 (76) | 76.0 | |
| Sept. 19, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | N/A | 43.0 μg/m3 (39) | 22.0 μg/m3 (71) | 71.0 | |
| Sept. 19, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | N/A | 41.0 μg/m3 (37) | 24.4 μg/m3 (76) | 76.0 | |
| Sept. 19, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (43) | N/A | 45.0 μg/m3 (41) | 27.2 μg/m3 (82) | 82.0 | |
| Sept. 19, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (45) | N/A | 45.0 μg/m3 (41) | 22.5 μg/m3 (72) | 72.0 | |
| Sept. 19, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (42) | N/A | 50.0 μg/m3 (45) | 25.2 μg/m3 (78) | 78.0 | |
| Sept. 19, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 59.0 ppb (45) | N/A | 47.0 μg/m3 (43) | 25.7 μg/m3 (79) | 79.0 | |
| Sept. 19, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (42) | N/A | 50.0 μg/m3 (45) | 22.2 μg/m3 (72) | 72.0 | |
| Sept. 19, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (42) | N/A | 52.0 μg/m3 (47) | 23.0 μg/m3 (73) | 73.0 | |
| Sept. 19, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | N/A | 41.0 μg/m3 (37) | 16.8 μg/m3 (60) | 60.0 | |
| Sept. 19, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | 52.0 μg/m3 (47) | 19.3 μg/m3 (66) | 66.0 | |
| Sept. 19, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | N/A | 52.0 μg/m3 (47) | 18.5 μg/m3 (64) | 64.0 | |
| Sept. 19, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | N/A | 49.0 μg/m3 (45) | 22.0 μg/m3 (71) | 71.0 | |
| Sept. 19, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | N/A | 54.0 μg/m3 (49) | 23.0 μg/m3 (73) | 73.0 | |
| Sept. 19, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | N/A | 50.0 μg/m3 (45) | 21.5 μg/m3 (70) | 70.0 | |
| Sept. 19, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | 53.0 μg/m3 (48) | 28.9 μg/m3 (86) | 86.0 | |
| Sept. 19, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (41) | N/A | 55.0 μg/m3 (50) | 28.7 μg/m3 (86) | 86.0 | |
| Sept. 18, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (42) | N/A | 48.0 μg/m3 (44) | 27.7 μg/m3 (83) | 83.0 | |
| Sept. 18, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (43) | N/A | 55.0 μg/m3 (50) | 26.0 μg/m3 (80) | 80.0 | |
| Sept. 18, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | N/A | 48.0 μg/m3 (44) | 21.8 μg/m3 (71) | 71.0 | |
| Sept. 18, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | N/A | 42.0 μg/m3 (38) | 22.5 μg/m3 (72) | 72.0 | |
| Sept. 18, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | N/A | 36.0 μg/m3 (33) | 16.8 μg/m3 (60) | 60.0 | |
| Sept. 18, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | N/A | 42.0 μg/m3 (38) | 19.3 μg/m3 (66) | 66.0 | |
| Sept. 18, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | N/A | 41.0 μg/m3 (37) | 23.0 μg/m3 (73) | 73.0 | |
| Sept. 18, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | 44.0 μg/m3 (40) | 24.5 μg/m3 (77) | 77.0 | |
| Sept. 18, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 47.0 μg/m3 (43) | 19.8 μg/m3 (67) | 67.0 | |
| Sept. 18, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | 45.0 μg/m3 (41) | 17.3 μg/m3 (61) | 61.0 | |
| Sept. 18, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | 56.0 μg/m3 (50) | 16.8 μg/m3 (60) | 60.0 | |
| Sept. 18, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | 37.0 μg/m3 (34) | 22.0 μg/m3 (71) | 71.0 | |
| Sept. 18, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 38.0 μg/m3 (35) | 21.0 μg/m3 (69) | 69.0 | |
| Sept. 18, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 34.0 μg/m3 (31) | 16.8 μg/m3 (60) | 60.0 | |
| Sept. 18, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | 40.0 μg/m3 (36) | 12.9 μg/m3 (52) | 52.0 | |
| Sept. 18, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | 39.0 μg/m3 (35) | 19.5 μg/m3 (66) | 66.0 | |
| Sept. 18, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 41.0 μg/m3 (37) | 20.6 μg/m3 (68) | 68.0 | |
| Sept. 18, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 40.0 μg/m3 (36) | 18.5 μg/m3 (64) | 64.0 | |
| Sept. 18, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 39.0 μg/m3 (35) | 18.8 μg/m3 (64) | 64.0 | |
| Sept. 18, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 37.0 μg/m3 (34) | 22.0 μg/m3 (71) | 71.0 | |
| Sept. 18, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 39.0 μg/m3 (35) | 26.7 μg/m3 (81) | 81.0 | |
| Sept. 18, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 48.0 μg/m3 (44) | 22.8 μg/m3 (73) | 73.0 | |
| Sept. 18, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 50.0 μg/m3 (45) | 25.2 μg/m3 (78) | 78.0 |