Ponca City (S 3rd St) OK, US: 36.697189, -97.081278
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| July 28, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 34.0 μg/m3 (32) | 13.4 μg/m3 (54) | 54.0 | |
| July 28, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 38.0 μg/m3 (36) | 13.5 μg/m3 (54) | 54.0 | |
| July 28, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 41.0 μg/m3 (38) | 13.6 μg/m3 (55) | 55.0 | |
| July 28, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 33.0 μg/m3 (31) | 12.1 μg/m3 (51) | 51.0 | |
| July 28, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 26.0 μg/m3 (25) | 10.3 μg/m3 (43) | 43.0 | |
| July 28, 2021, noon | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 24.0 μg/m3 (23) | 9.9 μg/m3 (42) | 42.0 | |
| July 28, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 23.0 μg/m3 (22) | 10.0 μg/m3 (42) | 42.0 | |
| July 28, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 23.0 μg/m3 (22) | 10.6 μg/m3 (45) | 45.0 | |
| July 28, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 21.0 μg/m3 (20) | 9.7 μg/m3 (41) | 41.0 | |
| July 28, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 25.0 μg/m3 (24) | 10.8 μg/m3 (46) | 46.0 | |
| July 28, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 29.0 μg/m3 (27) | 12.6 μg/m3 (53) | 53.0 | |
| July 28, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 30.0 μg/m3 (28) | 12.2 μg/m3 (52) | 52.0 | |
| July 28, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 34.0 μg/m3 (32) | 13.3 μg/m3 (54) | 54.0 | |
| July 28, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 37.0 μg/m3 (35) | 14.4 μg/m3 (56) | 56.0 | |
| July 28, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 44.0 μg/m3 (41) | 17.0 μg/m3 (62) | 62.0 | |
| July 28, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 47.0 μg/m3 (44) | 17.1 μg/m3 (62) | 62.0 | |
| July 28, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 45.0 μg/m3 (42) | 16.4 μg/m3 (61) | 61.0 | |
| July 28, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 39.0 μg/m3 (37) | 15.6 μg/m3 (59) | 59.0 | |
| July 27, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 38.0 μg/m3 (36) | 15.1 μg/m3 (58) | 58.0 | |
| July 27, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 38.0 μg/m3 (36) | 14.6 μg/m3 (57) | 57.0 | |
| July 27, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 38.0 μg/m3 (36) | 14.8 μg/m3 (57) | 57.0 | |
| July 27, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 40.0 μg/m3 (38) | 15.5 μg/m3 (59) | 59.0 | |
| July 27, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 40.0 μg/m3 (38) | 15.7 μg/m3 (59) | 59.0 | |
| July 27, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 41.0 μg/m3 (38) | 16.3 μg/m3 (60) | 60.0 | |
| July 27, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 41.0 μg/m3 (38) | 16.4 μg/m3 (61) | 61.0 | |
| July 27, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (10) | N/A | N/A | 42.0 μg/m3 (39) | 15.8 μg/m3 (59) | 59.0 | |
| July 27, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | 35.0 μg/m3 (33) | 13.3 μg/m3 (54) | 54.0 | |
| July 27, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 26.0 μg/m3 (25) | 9.8 μg/m3 (41) | 41.0 | |
| July 27, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 22.0 μg/m3 (21) | 8.4 μg/m3 (36) | 36.0 | |
| July 27, 2021, noon | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 24.0 μg/m3 (23) | 7.8 μg/m3 (33) | 33.0 | |
| July 27, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 23.0 μg/m3 (22) | 7.6 μg/m3 (32) | 32.0 | |
| July 27, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 25.0 μg/m3 (24) | 7.6 μg/m3 (32) | 32.0 | |
| July 27, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 21.0 μg/m3 (20) | 7.3 μg/m3 (31) | 31.0 | |
| July 27, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 18.0 μg/m3 (17) | 7.0 μg/m3 (30) | 30.0 | |
| July 27, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 20.0 μg/m3 (19) | 7.1 μg/m3 (30) | 30.0 | |
| July 27, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (18) | 7.3 μg/m3 (31) | 31.0 | |
| July 27, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 22.0 μg/m3 (21) | 8.7 μg/m3 (37) | 37.0 | |
| July 27, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 28.0 μg/m3 (26) | 10.5 μg/m3 (44) | 44.0 | |
| July 27, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 27.0 μg/m3 (25) | 10.1 μg/m3 (43) | 43.0 | |
| July 27, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 25.0 μg/m3 (24) | 9.7 μg/m3 (41) | 41.0 | |
| July 27, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 24.0 μg/m3 (23) | 9.1 μg/m3 (38) | 38.0 | |
| July 27, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 21.0 μg/m3 (20) | 8.8 μg/m3 (37) | 37.0 | |
| July 26, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 20.0 μg/m3 (19) | 8.6 μg/m3 (36) | 36.0 | |
| July 26, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 23.0 μg/m3 (22) | 9.3 μg/m3 (39) | 39.0 | |
| July 26, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 29.0 μg/m3 (27) | 10.9 μg/m3 (46) | 46.0 | |
| July 26, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 62.0 μg/m3 (55) | 19.2 μg/m3 (66) | 66.0 | |
| July 26, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 64.0 μg/m3 (56) | 20.5 μg/m3 (69) | 69.0 | |
| July 26, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 μg/m3 (50) | 18.2 μg/m3 (64) | 64.0 | |
| July 26, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 0.0 | |
| July 26, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 0.0 | |
| July 26, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 0.0 | |
| July 26, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 42.0 μg/m3 (39) | 16.6 μg/m3 (61) | 61.0 | |
| July 26, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 38.0 μg/m3 (36) | 15.2 μg/m3 (58) | 58.0 | |
| July 26, 2021, noon | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 36.0 μg/m3 (34) | 14.3 μg/m3 (56) | 56.0 | |
| July 26, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 27.0 μg/m3 (25) | 13.0 μg/m3 (53) | 53.0 | |
| July 26, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 25.0 μg/m3 (24) | 11.9 μg/m3 (50) | 50.0 | |
| July 26, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 29.0 μg/m3 (27) | 13.5 μg/m3 (54) | 54.0 | |
| July 26, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 22.0 μg/m3 (21) | 10.9 μg/m3 (46) | 46.0 | |
| July 26, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (18) | 8.8 μg/m3 (37) | 37.0 | |
| July 26, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 18.0 μg/m3 (17) | 8.5 μg/m3 (36) | 36.0 | |
| July 26, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 18.0 μg/m3 (17) | 8.4 μg/m3 (36) | 36.0 | |
| July 26, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 17.0 μg/m3 (16) | 7.7 μg/m3 (33) | 33.0 | |
| July 26, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 21.0 μg/m3 (20) | 9.2 μg/m3 (39) | 39.0 | |
| July 26, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 21.0 μg/m3 (20) | 9.2 μg/m3 (39) | 39.0 | |
| July 26, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 26.0 μg/m3 (25) | 9.6 μg/m3 (40) | 40.0 | |
| July 26, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 24.0 μg/m3 (23) | 10.6 μg/m3 (45) | 45.0 | |
| July 25, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 25.0 μg/m3 (24) | 11.1 μg/m3 (47) | 47.0 | |
| July 25, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 28.0 μg/m3 (26) | 10.8 μg/m3 (46) | 46.0 | |
| July 25, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 39.0 μg/m3 (37) | 13.6 μg/m3 (55) | 55.0 | |
| July 25, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 77.0 μg/m3 (62) | 27.7 μg/m3 (84) | 84.0 | |
| July 25, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 72.0 μg/m3 (60) | 26.9 μg/m3 (83) | 83.0 | |
| July 25, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 77.0 μg/m3 (62) | 28.2 μg/m3 (85) | 85.0 | |
| July 25, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | 95.0 μg/m3 (71) | 32.3 μg/m3 (94) | 94.0 | |
| July 25, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 6.0 ppb (9) | N/A | N/A | 92.0 μg/m3 (70) | 32.5 μg/m3 (94) | 94.0 | |
| July 25, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (10) | N/A | N/A | 86.0 μg/m3 (67) | 31.6 μg/m3 (93) | 93.0 | |
| July 25, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 10.0 ppb (15) | N/A | N/A | 79.0 μg/m3 (63) | 30.2 μg/m3 (90) | 90.0 | |
| July 25, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 71.0 μg/m3 (59) | 28.8 μg/m3 (87) | 87.0 | |
| July 25, 2021, noon | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 67.0 μg/m3 (57) | 27.9 μg/m3 (85) | 85.0 | |
| July 25, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 70.0 μg/m3 (59) | 28.2 μg/m3 (85) | 85.0 | |
| July 25, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 67.0 μg/m3 (57) | 27.4 μg/m3 (84) | 84.0 | |
| July 25, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 69.0 μg/m3 (58) | 27.8 μg/m3 (85) | 85.0 | |
| July 25, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 72.0 μg/m3 (60) | 29.0 μg/m3 (87) | 87.0 | |
| July 25, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 71.0 μg/m3 (59) | 27.5 μg/m3 (84) | 84.0 | |
| July 25, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 72.0 μg/m3 (60) | 26.3 μg/m3 (81) | 81.0 | |
| July 25, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 73.0 μg/m3 (60) | 27.1 μg/m3 (83) | 83.0 | |
| July 25, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 64.0 μg/m3 (56) | 24.1 μg/m3 (77) | 77.0 | |
| July 25, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 58.0 μg/m3 (53) | 21.8 μg/m3 (72) | 72.0 | |
| July 25, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 47.0 μg/m3 (44) | 21.0 μg/m3 (70) | 70.0 | |
| July 25, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 45.0 μg/m3 (42) | 18.8 μg/m3 (66) | 66.0 | |
| July 25, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 64.0 μg/m3 (56) | 23.3 μg/m3 (75) | 75.0 | |
| July 24, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 62.0 μg/m3 (55) | 24.0 μg/m3 (77) | 77.0 | |
| July 24, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 75.0 μg/m3 (61) | 34.4 μg/m3 (98) | 98.0 | |
| July 24, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 64.0 μg/m3 (56) | 24.4 μg/m3 (77) | 77.0 | |
| July 24, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 63.0 μg/m3 (55) | 24.2 μg/m3 (77) | 77.0 | |
| July 24, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 67.0 μg/m3 (57) | 24.5 μg/m3 (78) | 78.0 | |
| July 24, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 66.0 μg/m3 (57) | 24.3 μg/m3 (77) | 77.0 | |
| July 24, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | 65.0 μg/m3 (56) | 24.1 μg/m3 (77) | 77.0 | |
| July 24, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 72.0 μg/m3 (60) | 24.9 μg/m3 (78) | 78.0 | |
| July 24, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 67.0 μg/m3 (57) | 24.0 μg/m3 (77) | 77.0 | |
| July 24, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 66.0 μg/m3 (57) | 22.9 μg/m3 (74) | 74.0 | |
| July 24, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | 48.0 μg/m3 (45) | 19.2 μg/m3 (66) | 66.0 | |
| July 24, 2021, noon | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 40.0 μg/m3 (38) | 17.3 μg/m3 (62) | 62.0 | |
| July 24, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 35.0 μg/m3 (33) | 16.1 μg/m3 (60) | 60.0 | |
| July 24, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | 34.0 μg/m3 (32) | 15.4 μg/m3 (58) | 58.0 | |
| July 24, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 30.0 μg/m3 (28) | 14.1 μg/m3 (56) | 56.0 | |
| July 24, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 28.0 μg/m3 (26) | 13.1 μg/m3 (54) | 54.0 | |
| July 24, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 30.0 μg/m3 (28) | 12.4 μg/m3 (52) | 52.0 | |
| July 24, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 29.0 μg/m3 (27) | 12.3 μg/m3 (52) | 52.0 | |
| July 24, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | 33.0 μg/m3 (31) | 11.9 μg/m3 (50) | 50.0 | |
| July 24, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (8) | N/A | N/A | 38.0 μg/m3 (36) | 12.3 μg/m3 (52) | 52.0 | |
| July 24, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 35.0 μg/m3 (33) | 11.6 μg/m3 (49) | 49.0 | |
| July 24, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 6.0 ppb (9) | N/A | N/A | 30.0 μg/m3 (28) | 10.6 μg/m3 (45) | 45.0 | |
| July 24, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (13) | N/A | N/A | 53.0 μg/m3 (50) | 12.3 μg/m3 (52) | 52.0 | |
| July 24, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 24.0 μg/m3 (23) | 10.0 μg/m3 (42) | 42.0 | |
| July 23, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 24.0 μg/m3 (23) | 10.5 μg/m3 (44) | 44.0 | |
| July 23, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 24.0 μg/m3 (23) | 11.2 μg/m3 (47) | 47.0 | |
| July 23, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 26.0 μg/m3 (25) | 12.3 μg/m3 (52) | 52.0 | |
| July 23, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 28.0 μg/m3 (26) | 13.6 μg/m3 (55) | 55.0 | |
| July 23, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 31.0 μg/m3 (29) | 14.4 μg/m3 (56) | 56.0 | |
| July 23, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 27.0 μg/m3 (25) | 14.0 μg/m3 (55) | 55.0 | |
| July 23, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 30.0 μg/m3 (28) | 14.8 μg/m3 (57) | 57.0 | |
| July 23, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 36.0 μg/m3 (34) | 17.5 μg/m3 (63) | 63.0 | |
| July 23, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 44.0 μg/m3 (41) | 21.0 μg/m3 (70) | 70.0 | |
| July 23, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 6.0 ppb (9) | N/A | N/A | 42.0 μg/m3 (39) | 24.2 μg/m3 (77) | 77.0 | |
| July 23, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (10) | N/A | N/A | 44.0 μg/m3 (41) | 27.3 μg/m3 (83) | 83.0 | |
| July 23, 2021, noon | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 46.0 μg/m3 (43) | 31.0 μg/m3 (91) | 91.0 | |
| July 23, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 47.0 μg/m3 (44) | 34.1 μg/m3 (98) | 98.0 | |
| July 23, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 49.0 μg/m3 (46) | 35.6 μg/m3 (102) | 102.0 | |
| July 23, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 49.0 μg/m3 (46) | 36.0 μg/m3 (103) | 103.0 | |
| July 23, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 51.0 μg/m3 (48) | 36.6 μg/m3 (104) | 104.0 | |
| July 23, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 53.0 μg/m3 (50) | 35.3 μg/m3 (100) | 100.0 | |
| July 23, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 53.0 μg/m3 (50) | 34.6 μg/m3 (99) | 99.0 | |
| July 23, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 51.0 μg/m3 (48) | 34.2 μg/m3 (98) | 98.0 | |
| July 23, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 52.0 μg/m3 (49) | 34.1 μg/m3 (98) | 98.0 | |
| July 23, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 52.0 μg/m3 (49) | 34.2 μg/m3 (98) | 98.0 | |
| July 23, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 58.0 μg/m3 (53) | 33.8 μg/m3 (97) | 97.0 | |
| July 23, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 55.0 μg/m3 (51) | 32.5 μg/m3 (94) | 94.0 | |
| July 23, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 45.0 μg/m3 (42) | 31.9 μg/m3 (93) | 93.0 | |
| July 22, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 47.0 μg/m3 (44) | 32.5 μg/m3 (94) | 94.0 | |
| July 22, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 48.0 μg/m3 (45) | 32.6 μg/m3 (95) | 95.0 | |
| July 22, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 47.0 μg/m3 (44) | 33.4 μg/m3 (96) | 96.0 | |
| July 22, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 51.0 μg/m3 (48) | 33.3 μg/m3 (96) | 96.0 | |
| July 22, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 49.0 μg/m3 (46) | 34.0 μg/m3 (98) | 98.0 | |
| July 22, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 53.0 μg/m3 (50) | 35.5 μg/m3 (101) | 101.0 | |
| July 22, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 54.0 μg/m3 (50) | 36.2 μg/m3 (103) | 103.0 | |
| July 22, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 56.0 μg/m3 (52) | 37.0 μg/m3 (105) | 105.0 | |
| July 22, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 67.0 μg/m3 (57) | 37.1 μg/m3 (105) | 105.0 | |
| July 22, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 62.0 μg/m3 (55) | 36.8 μg/m3 (105) | 105.0 | |
| July 22, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 56.0 μg/m3 (52) | 36.7 μg/m3 (104) | 104.0 | |
| July 22, 2021, noon | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 54.0 μg/m3 (50) | 38.2 μg/m3 (108) | 108.0 | |
| July 22, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 53.0 μg/m3 (50) | 39.0 μg/m3 (110) | 110.0 | |
| July 22, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 51.0 μg/m3 (48) | 38.4 μg/m3 (109) | 109.0 | |
| July 22, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 54.0 μg/m3 (50) | 40.6 μg/m3 (114) | 114.0 | |
| July 22, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 56.0 μg/m3 (52) | 42.4 μg/m3 (118) | 118.0 | |
| July 22, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 55.0 μg/m3 (51) | 42.5 μg/m3 (119) | 119.0 | |
| July 22, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 57.0 μg/m3 (52) | 43.5 μg/m3 (121) | 121.0 | |
| July 22, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 61.0 μg/m3 (54) | 44.8 μg/m3 (124) | 124.0 | |
| July 22, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 61.0 μg/m3 (54) | 42.6 μg/m3 (119) | 119.0 | |
| July 22, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 61.0 μg/m3 (54) | 42.5 μg/m3 (119) | 119.0 | |
| July 22, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 56.0 μg/m3 (52) | 40.8 μg/m3 (115) | 115.0 | |
| July 22, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 56.0 μg/m3 (52) | 40.3 μg/m3 (113) | 113.0 | |
| July 22, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 57.0 μg/m3 (52) | 40.8 μg/m3 (115) | 115.0 | |
| July 21, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 53.0 μg/m3 (50) | 40.8 μg/m3 (115) | 115.0 | |
| July 21, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 51.0 μg/m3 (48) | 40.0 μg/m3 (113) | 113.0 | |
| July 21, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 50.0 μg/m3 (47) | 40.0 μg/m3 (113) | 113.0 | |
| July 21, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 51.0 μg/m3 (48) | 39.9 μg/m3 (112) | 112.0 | |
| July 21, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 51.0 μg/m3 (48) | 40.5 μg/m3 (114) | 114.0 | |
| July 21, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 50.0 μg/m3 (47) | 40.6 μg/m3 (114) | 114.0 |