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. 20, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 5.0 μg/m3 (5) | 2.0 μg/m3 (9) | 34.0 | |
| Sept. 20, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (32) | N/A | 8.0 μg/m3 (8) | 1.7 μg/m3 (8) | 32.0 | |
| Sept. 20, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (32) | N/A | 9.0 μg/m3 (9) | 4.1 μg/m3 (18) | 32.0 | |
| Sept. 20, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | N/A | 9.0 μg/m3 (9) | 7.5 μg/m3 (32) | 32.0 | |
| Sept. 20, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (26) | N/A | 11.0 μg/m3 (11) | 8.5 μg/m3 (36) | 36.0 | |
| Sept. 20, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (25) | N/A | 12.0 μg/m3 (12) | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 20, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (25) | N/A | 11.0 μg/m3 (11) | 8.5 μg/m3 (36) | 36.0 | |
| Sept. 20, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (23) | N/A | 15.0 μg/m3 (14) | 10.5 μg/m3 (44) | 44.0 | |
| Sept. 20, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (23) | N/A | 19.0 μg/m3 (18) | 10.5 μg/m3 (44) | 44.0 | |
| Sept. 20, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | N/A | 15.0 μg/m3 (14) | 9.5 μg/m3 (40) | 40.0 | |
| Sept. 20, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | N/A | 16.0 μg/m3 (15) | 10.7 μg/m3 (45) | 45.0 | |
| Sept. 20, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | N/A | 13.0 μg/m3 (13) | 10.7 μg/m3 (45) | 45.0 | |
| Sept. 20, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 14.0 μg/m3 (13) | 9.7 μg/m3 (41) | 41.0 | |
| Sept. 20, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 20.0 μg/m3 (19) | 15.9 μg/m3 (59) | 59.0 | |
| Sept. 20, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 17.0 μg/m3 (16) | 6.8 μg/m3 (29) | 39.0 | |
| Sept. 20, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 13.0 μg/m3 (13) | 6.3 μg/m3 (27) | 42.0 | |
| Sept. 19, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 17.0 μg/m3 (16) | 3.9 μg/m3 (17) | 43.0 | |
| Sept. 19, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 10.0 μg/m3 (10) | 5.3 μg/m3 (23) | 43.0 | |
| Sept. 19, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 26.0 μg/m3 (25) | 6.5 μg/m3 (28) | 43.0 | |
| Sept. 19, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 19.0 μg/m3 (18) | 4.8 μg/m3 (20) | 42.0 | |
| Sept. 19, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 10.0 μg/m3 (10) | 4.3 μg/m3 (18) | 40.0 | |
| Sept. 19, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 10.0 μg/m3 (10) | 4.5 μg/m3 (19) | 39.0 | |
| Sept. 19, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 6.0 μg/m3 (6) | 3.4 μg/m3 (15) | 39.0 | |
| Sept. 19, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 9.0 μg/m3 (9) | 1.2 μg/m3 (5) | 38.0 | |
| Sept. 19, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 6.0 μg/m3 (6) | 2.9 μg/m3 (13) | 36.0 | |
| Sept. 19, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | N/A | 4.0 μg/m3 (4) | 3.6 μg/m3 (16) | 35.0 | |
| Sept. 19, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | N/A | 4.0 μg/m3 (4) | 0.8 μg/m3 (4) | 35.0 | |
| Sept. 19, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 4.0 μg/m3 (4) | 1.7 μg/m3 (8) | 36.0 | |
| Sept. 19, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | N/A | 7.0 μg/m3 (7) | 2.2 μg/m3 (10) | 37.0 | |
| Sept. 19, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 13.0 μg/m3 (13) | 3.9 μg/m3 (17) | 38.0 | |
| Sept. 19, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 8.0 μg/m3 (8) | 3.0 μg/m3 (13) | 38.0 | |
| Sept. 19, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 10.0 μg/m3 (10) | 2.7 μg/m3 (12) | 38.0 | |
| Sept. 19, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 11.0 μg/m3 (11) | 0.2 μg/m3 (1) | 38.0 | |
| Sept. 19, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | N/A | 12.0 μg/m3 (12) | 1.7 μg/m3 (8) | 37.0 | |
| Sept. 19, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 8.0 μg/m3 (8) | 1.5 μg/m3 (7) | 38.0 | |
| Sept. 19, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 13.0 μg/m3 (13) | -0.2 μg/m3 (0) | 38.0 | |
| Sept. 19, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 13.0 μg/m3 (13) | 4.6 μg/m3 (20) | 39.0 | |
| Sept. 19, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 19.0 μg/m3 (18) | 8.0 μg/m3 (34) | 40.0 | |
| Sept. 19, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (47) | N/A | 9.0 μg/m3 (9) | 7.0 μg/m3 (30) | 47.0 | |
| Sept. 19, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (49) | N/A | 10.0 μg/m3 (10) | 3.9 μg/m3 (17) | 49.0 | |
| Sept. 18, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (50) | N/A | 8.0 μg/m3 (8) | 0.2 μg/m3 (1) | 50.0 | |
| Sept. 18, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (49) | N/A | 8.0 μg/m3 (8) | 3.0 μg/m3 (13) | 49.0 | |
| Sept. 18, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (51) | N/A | 17.0 μg/m3 (16) | 5.8 μg/m3 (25) | 51.0 | |
| Sept. 18, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (55) | N/A | 17.0 μg/m3 (16) | 8.0 μg/m3 (34) | 55.0 | |
| Sept. 18, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 57.0 ppb (58) | N/A | 14.0 μg/m3 (13) | 7.5 μg/m3 (32) | 58.0 | |
| Sept. 18, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (50) | N/A | 16.0 μg/m3 (15) | 9.0 μg/m3 (38) | 50.0 | |
| Sept. 18, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (50) | N/A | 14.0 μg/m3 (13) | 9.2 μg/m3 (39) | 50.0 | |
| Sept. 18, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (48) | N/A | 20.0 μg/m3 (19) | 8.7 μg/m3 (37) | 48.0 | |
| Sept. 18, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 17.0 μg/m3 (16) | 7.3 μg/m3 (31) | 43.0 | |
| Sept. 18, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 16.0 μg/m3 (15) | 11.0 μg/m3 (46) | 46.0 | |
| Sept. 18, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 12.0 μg/m3 (12) | 10.5 μg/m3 (44) | 44.0 | |
| Sept. 18, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 18.0 μg/m3 (17) | 6.0 μg/m3 (25) | 41.0 | |
| Sept. 18, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 35.0 μg/m3 (33) | 7.7 μg/m3 (33) | 39.0 | |
| Sept. 18, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | N/A | 20.0 μg/m3 (19) | 6.5 μg/m3 (28) | 37.0 | |
| Sept. 18, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 21.0 μg/m3 (20) | 6.1 μg/m3 (26) | 38.0 | |
| Sept. 18, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 40.0 μg/m3 (38) | 5.8 μg/m3 (25) | 38.0 | |
| Sept. 18, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | N/A | 28.0 μg/m3 (26) | 5.8 μg/m3 (25) | 37.0 | |
| Sept. 18, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 20.0 μg/m3 (19) | 8.5 μg/m3 (36) | 38.0 | |
| Sept. 18, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 29.0 μg/m3 (27) | 10.2 μg/m3 (43) | 43.0 | |
| Sept. 18, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 40.0 μg/m3 (38) | 12.5 μg/m3 (52) | 52.0 | |
| Sept. 18, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 38.0 μg/m3 (36) | 18.4 μg/m3 (65) | 65.0 | |
| Sept. 18, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 49.0 μg/m3 (46) | 28.5 μg/m3 (86) | 86.0 | |
| Sept. 18, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 22.0 μg/m3 (21) | 5.0 μg/m3 (21) | 38.0 | |
| Sept. 18, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 79.0 μg/m3 (63) | 53.7 μg/m3 (146) | 146.0 | |
| Sept. 17, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 25.0 μg/m3 (24) | N/A | 42.0 | |
| Sept. 17, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (46) | N/A | 73.0 μg/m3 (60) | 46.3 μg/m3 (128) | 128.0 | |
| Sept. 17, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (50) | N/A | N/A | N/A | 50.0 | |
| Sept. 17, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 30.0 μg/m3 (28) | 7.5 μg/m3 (32) | 38.0 | |
| Sept. 17, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 11.0 μg/m3 (11) | -1.7 μg/m3 (0) | 34.0 | |
| Sept. 17, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (32) | N/A | 8.0 μg/m3 (8) | -0.9 μg/m3 (0) | 32.0 | |
| Sept. 17, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (31) | N/A | 4.0 μg/m3 (4) | 1.4 μg/m3 (6) | 31.0 | |
| Sept. 17, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (30) | N/A | 6.0 μg/m3 (6) | 2.9 μg/m3 (13) | 30.0 | |
| Sept. 17, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (29) | N/A | 6.0 μg/m3 (6) | 1.2 μg/m3 (5) | 29.0 | |
| Sept. 17, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (29) | N/A | 7.0 μg/m3 (7) | 2.5 μg/m3 (11) | 29.0 | |
| Sept. 17, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (29) | N/A | 8.0 μg/m3 (8) | 3.8 μg/m3 (16) | 29.0 | |
| Sept. 17, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (29) | N/A | 2.0 μg/m3 (2) | 2.0 μg/m3 (9) | 29.0 | |
| Sept. 17, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (31) | N/A | 6.0 μg/m3 (6) | -0.7 μg/m3 (0) | 31.0 | |
| Sept. 17, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 7.0 μg/m3 (7) | 0.5 μg/m3 (3) | 34.0 | |
| Sept. 17, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (32) | N/A | 2.0 μg/m3 (2) | 2.0 μg/m3 (9) | 32.0 | |
| Sept. 17, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (30) | N/A | -2.0 μg/m3 (0) | 1.5 μg/m3 (7) | 30.0 | |
| Sept. 17, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (32) | N/A | 1.0 μg/m3 (1) | 3.8 μg/m3 (16) | 32.0 | |
| Sept. 17, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 11.0 μg/m3 (11) | 5.0 μg/m3 (21) | 34.0 | |
| Sept. 17, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | N/A | 12.0 μg/m3 (12) | 0.7 μg/m3 (3) | 35.0 | |
| Sept. 17, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | N/A | 13.0 μg/m3 (13) | 2.2 μg/m3 (10) | 37.0 | |
| Sept. 17, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 14.0 μg/m3 (13) | 3.1 μg/m3 (13) | 38.0 | |
| Sept. 17, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 26.0 μg/m3 (25) | 1.9 μg/m3 (8) | 38.0 | |
| Sept. 17, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 22.0 μg/m3 (21) | 4.3 μg/m3 (18) | 40.0 | |
| Sept. 17, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 29.0 μg/m3 (27) | 5.2 μg/m3 (22) | 40.0 | |
| Sept. 16, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 30.0 μg/m3 (28) | 4.6 μg/m3 (20) | 42.0 | |
| Sept. 16, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 30.0 μg/m3 (28) | 3.8 μg/m3 (16) | 44.0 | |
| Sept. 16, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (45) | N/A | 29.0 μg/m3 (27) | 5.3 μg/m3 (23) | 45.0 | |
| Sept. 16, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 26.0 μg/m3 (25) | 5.0 μg/m3 (21) | 44.0 | |
| Sept. 16, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 28.0 μg/m3 (26) | 5.0 μg/m3 (21) | 42.0 | |
| Sept. 16, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 34.0 μg/m3 (32) | 5.3 μg/m3 (23) | 40.0 | |
| Sept. 16, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 28.0 μg/m3 (26) | 5.7 μg/m3 (24) | 39.0 | |
| Sept. 16, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 18.0 μg/m3 (17) | 1.6 μg/m3 (7) | 43.0 | |
| Sept. 16, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 30.0 μg/m3 (28) | 4.3 μg/m3 (18) | 41.0 | |
| Sept. 16, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 17.0 μg/m3 (16) | 6.0 μg/m3 (25) | 40.0 | |
| Sept. 16, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 9.0 μg/m3 (9) | 5.3 μg/m3 (23) | 41.0 | |
| Sept. 16, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 18.0 μg/m3 (17) | 6.0 μg/m3 (25) | 44.0 | |
| Sept. 16, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (45) | N/A | 13.0 μg/m3 (13) | 4.5 μg/m3 (19) | 45.0 | |
| Sept. 16, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (47) | N/A | 12.0 μg/m3 (12) | 3.6 μg/m3 (16) | 47.0 | |
| Sept. 16, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (48) | N/A | 12.0 μg/m3 (12) | 3.8 μg/m3 (16) | 48.0 | |
| Sept. 16, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (50) | N/A | 14.0 μg/m3 (13) | 3.2 μg/m3 (14) | 50.0 | |
| Sept. 16, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (49) | N/A | 15.0 μg/m3 (14) | 5.0 μg/m3 (21) | 49.0 | |
| Sept. 16, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (50) | N/A | 8.0 μg/m3 (8) | 5.0 μg/m3 (21) | 50.0 | |
| Sept. 16, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (49) | N/A | 16.0 μg/m3 (15) | 5.8 μg/m3 (25) | 49.0 | |
| Sept. 16, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (48) | N/A | 17.0 μg/m3 (16) | 7.2 μg/m3 (31) | 48.0 | |
| Sept. 16, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (49) | N/A | 12.0 μg/m3 (12) | 7.7 μg/m3 (33) | 49.0 | |
| Sept. 16, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (49) | N/A | 15.0 μg/m3 (14) | 7.2 μg/m3 (31) | 49.0 | |
| Sept. 16, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (50) | N/A | 13.0 μg/m3 (13) | 5.5 μg/m3 (23) | 50.0 | |
| Sept. 16, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (50) | N/A | 15.0 μg/m3 (14) | 6.7 μg/m3 (28) | 50.0 | |
| Sept. 15, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (50) | N/A | 14.0 μg/m3 (13) | 7.9 μg/m3 (33) | 50.0 | |
| Sept. 15, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (50) | N/A | 16.0 μg/m3 (15) | 4.8 μg/m3 (20) | 50.0 | |
| Sept. 15, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (51) | N/A | 9.0 μg/m3 (9) | 5.7 μg/m3 (24) | 51.0 | |
| Sept. 15, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (51) | N/A | 11.0 μg/m3 (11) | 4.1 μg/m3 (18) | 51.0 | |
| Sept. 15, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (50) | N/A | 13.0 μg/m3 (13) | 5.4 μg/m3 (23) | 50.0 | |
| Sept. 15, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (48) | N/A | 15.0 μg/m3 (14) | 5.5 μg/m3 (23) | 48.0 | |
| Sept. 15, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 19.0 μg/m3 (18) | 4.5 μg/m3 (19) | 44.0 | |
| Sept. 15, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 16.0 μg/m3 (15) | 5.0 μg/m3 (21) | 36.0 | |
| Sept. 15, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | N/A | 11.0 μg/m3 (11) | 6.2 μg/m3 (26) | 33.0 | |
| Sept. 15, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 10.0 μg/m3 (10) | 6.0 μg/m3 (25) | 34.0 | |
| Sept. 15, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 13.0 μg/m3 (13) | 5.7 μg/m3 (24) | 40.0 | |
| Sept. 15, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 15.0 μg/m3 (14) | 4.3 μg/m3 (18) | 38.0 | |
| Sept. 15, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 14.0 μg/m3 (13) | 5.0 μg/m3 (21) | 36.0 | |
| Sept. 15, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | N/A | 15.0 μg/m3 (14) | 4.0 μg/m3 (17) | 37.0 | |
| Sept. 15, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 9.0 μg/m3 (9) | 2.9 μg/m3 (13) | 38.0 | |
| Sept. 15, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 11.0 μg/m3 (11) | 2.9 μg/m3 (13) | 39.0 | |
| Sept. 15, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 13.0 μg/m3 (13) | 2.2 μg/m3 (10) | 43.0 | |
| Sept. 15, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 18.0 μg/m3 (17) | 2.0 μg/m3 (9) | 44.0 | |
| Sept. 15, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 6.0 μg/m3 (6) | 3.9 μg/m3 (17) | 44.0 | |
| Sept. 15, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 5.0 μg/m3 (5) | 3.4 μg/m3 (15) | 43.0 | |
| Sept. 15, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 2.0 μg/m3 (2) | 2.7 μg/m3 (12) | 42.0 | |
| Sept. 15, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 6.0 μg/m3 (6) | 5.5 μg/m3 (23) | 43.0 | |
| Sept. 15, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (46) | N/A | 9.0 μg/m3 (9) | 5.0 μg/m3 (21) | 46.0 | |
| Sept. 15, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (47) | N/A | 12.0 μg/m3 (12) | 4.5 μg/m3 (19) | 47.0 | |
| Sept. 14, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (49) | N/A | 6.0 μg/m3 (6) | 3.3 μg/m3 (14) | 49.0 | |
| Sept. 14, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (47) | N/A | 8.0 μg/m3 (8) | 3.6 μg/m3 (16) | 47.0 | |
| Sept. 14, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (46) | N/A | 7.0 μg/m3 (7) | 3.1 μg/m3 (13) | 46.0 | |
| Sept. 14, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 7.0 μg/m3 (7) | 3.1 μg/m3 (13) | 43.0 | |
| Sept. 14, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 10.0 μg/m3 (10) | 1.9 μg/m3 (8) | 41.0 | |
| Sept. 14, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 11.0 μg/m3 (11) | 2.6 μg/m3 (11) | 38.0 | |
| Sept. 14, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 7.0 μg/m3 (7) | 4.5 μg/m3 (19) | 38.0 | |
| Sept. 14, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | N/A | 8.0 μg/m3 (8) | 4.8 μg/m3 (20) | 37.0 | |
| Sept. 14, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 8.0 μg/m3 (8) | 4.0 μg/m3 (17) | 36.0 | |
| Sept. 14, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 μg/m3 (12) | 1.7 μg/m3 (8) | 12.0 | |
| Sept. 14, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 7.0 μg/m3 (7) | 0.2 μg/m3 (1) | 38.0 | |
| Sept. 14, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 12.0 μg/m3 (12) | 1.2 μg/m3 (5) | 38.0 | |
| Sept. 14, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | N/A | 15.0 μg/m3 (14) | 1.7 μg/m3 (8) | 33.0 | |
| Sept. 14, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 2.0 μg/m3 (2) | 1.7 μg/m3 (8) | 38.0 | |
| Sept. 14, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 7.0 μg/m3 (7) | 3.6 μg/m3 (16) | 39.0 | |
| Sept. 14, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | N/A | 12.0 μg/m3 (12) | 5.5 μg/m3 (23) | 33.0 | |
| Sept. 14, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 17.0 μg/m3 (16) | 4.3 μg/m3 (18) | 42.0 | |
| Sept. 14, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 16.0 μg/m3 (15) | 3.3 μg/m3 (14) | 38.0 | |
| Sept. 14, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 5.0 μg/m3 (5) | 5.5 μg/m3 (23) | 36.0 | |
| Sept. 14, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 7.0 μg/m3 (7) | 4.5 μg/m3 (19) | 38.0 | |
| Sept. 14, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 9.0 μg/m3 (9) | 4.5 μg/m3 (19) | 38.0 | |
| Sept. 14, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 3.0 μg/m3 (3) | 5.8 μg/m3 (25) | 38.0 | |
| Sept. 14, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 8.0 μg/m3 (8) | 5.8 μg/m3 (25) | 38.0 | |
| Sept. 14, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | N/A | 9.0 μg/m3 (9) | 8.2 μg/m3 (35) | 37.0 | |
| Sept. 13, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 11.0 μg/m3 (11) | 6.5 μg/m3 (28) | 38.0 | |
| Sept. 13, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 13.0 μg/m3 (13) | 4.0 μg/m3 (17) | 39.0 | |
| Sept. 13, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 10.0 μg/m3 (10) | 4.6 μg/m3 (20) | 39.0 | |
| Sept. 13, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 13.0 μg/m3 (13) | 4.3 μg/m3 (18) | 38.0 | |
| Sept. 13, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 12.0 μg/m3 (12) | 3.8 μg/m3 (16) | 38.0 | |
| Sept. 13, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 15.0 μg/m3 (14) | 2.7 μg/m3 (12) | 34.0 | |
| Sept. 13, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (30) | N/A | 17.0 μg/m3 (16) | 4.6 μg/m3 (20) | 30.0 | |
| Sept. 13, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (26) | N/A | 11.0 μg/m3 (11) | 4.5 μg/m3 (19) | 26.0 |