Decatur (Perimeter) GA, US: 33.698611, -84.272608
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| July 28, 2021, 6 p.m. | 20.9 ppb (20) | 5.7 ppb (6) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 | |
| July 28, 2021, 5 p.m. | 27.6 ppb (27) | 7.1 ppb (7) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 | |
| July 28, 2021, 4 p.m. | 18.9 ppb (18) | 4.6 ppb (5) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 | |
| July 28, 2021, 3 p.m. | 15.2 ppb (15) | 4.6 ppb (5) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 | |
| July 28, 2021, 2 p.m. | 47.4 ppb (45) | 29.4 ppb (28) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 | |
| July 28, 2021, 1 p.m. | 51.8 ppb (49) | 36.3 ppb (35) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 | |
| July 28, 2021, noon | 26.8 ppb (26) | 16.2 ppb (16) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 | |
| July 28, 2021, 11 a.m. | 34.0 ppb (33) | 22.3 ppb (22) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 | |
| July 28, 2021, 10 a.m. | 27.1 ppb (26) | 12.9 ppb (13) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 | |
| July 28, 2021, 9 a.m. | 21.1 ppb (20) | 6.5 ppb (7) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 | |
| July 28, 2021, 8 a.m. | 30.5 ppb (29) | 15.7 ppb (15) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 | |
| July 28, 2021, 7 a.m. | 16.3 ppb (16) | 4.4 ppb (5) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 | |
| July 28, 2021, 6 a.m. | 27.0 ppb (26) | 9.9 ppb (10) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 | |
| July 28, 2021, 5 a.m. | 31.0 ppb (30) | 11.0 ppb (11) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 | |
| July 28, 2021, 4 a.m. | 23.8 ppb (23) | 5.7 ppb (6) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 | |
| July 28, 2021, 3 a.m. | 32.1 ppb (31) | 9.4 ppb (9) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 | |
| July 28, 2021, 2 a.m. | 44.6 ppb (43) | 16.8 ppb (16) | N/A | 28.0 ppb (27) | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 | |
| July 28, 2021, 1 a.m. | 55.3 ppb (53) | 24.6 ppb (24) | N/A | 31.0 ppb (30) | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 | |
| July 28, 2021, midnight | 10.5 ppb (10) | 0.6 ppb (1) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 | |
| July 27, 2021, 11 p.m. | 29.9 ppb (29) | 8.3 ppb (8) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 | |
| July 27, 2021, 10 p.m. | 15.5 ppb (15) | 2.8 ppb (3) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 | |
| July 27, 2021, 9 p.m. | 25.2 ppb (24) | 5.1 ppb (5) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 | |
| July 27, 2021, 8 p.m. | 2.2 ppb (3) | -0.3 ppb (0) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 | |
| July 27, 2021, 7 p.m. | 5.9 ppb (6) | 0.1 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 | |
| July 27, 2021, 6 p.m. | 17.0 ppb (17) | 3.9 ppb (4) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 | |
| July 27, 2021, 5 p.m. | 5.9 ppb (6) | 0.2 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 | |
| July 27, 2021, 4 p.m. | 25.1 ppb (24) | 7.1 ppb (7) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 | |
| July 27, 2021, 3 p.m. | 41.6 ppb (40) | 16.0 ppb (16) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 | |
| July 27, 2021, 2 p.m. | 41.6 ppb (40) | 18.4 ppb (18) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 | |
| July 27, 2021, 1 p.m. | 63.3 ppb (61) | 37.2 ppb (36) | N/A | 26.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | N/A | 61.0 | |
| July 27, 2021, noon | 67.3 ppb (66) | 44.7 ppb (43) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 66.0 | |
| July 27, 2021, 11 a.m. | 39.3 ppb (38) | 26.7 ppb (26) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 | |
| July 27, 2021, 10 a.m. | 30.0 ppb (29) | 16.1 ppb (16) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 | |
| July 27, 2021, 9 a.m. | 31.2 ppb (30) | 14.2 ppb (14) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 | |
| July 27, 2021, 8 a.m. | 19.5 ppb (19) | 9.4 ppb (9) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 | |
| July 27, 2021, 7 a.m. | 15.9 ppb (15) | 3.4 ppb (4) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 | |
| July 27, 2021, 6 a.m. | 27.4 ppb (26) | 9.8 ppb (10) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 | |
| July 27, 2021, 5 a.m. | 31.3 ppb (30) | 10.2 ppb (10) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 | |
| July 27, 2021, 4 a.m. | 5.7 ppb (6) | 0.5 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 | |
| July 27, 2021, 3 a.m. | 2.3 ppb (3) | -0.3 ppb (0) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 | |
| July 27, 2021, 2 a.m. | 4.1 ppb (4) | -0.1 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 | |
| July 27, 2021, 1 a.m. | 38.9 ppb (37) | 11.8 ppb (12) | N/A | 27.0 ppb (26) | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 | |
| July 27, 2021, midnight | 37.0 ppb (35) | 12.5 ppb (12) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 | |
| July 26, 2021, 11 p.m. | 24.7 ppb (24) | 7.0 ppb (7) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 | |
| July 26, 2021, 10 p.m. | 47.7 ppb (45) | 13.6 ppb (13) | N/A | 34.0 ppb (33) | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 | |
| July 26, 2021, 9 p.m. | 37.8 ppb (36) | 9.0 ppb (9) | N/A | 29.0 ppb (28) | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 | |
| July 26, 2021, 8 p.m. | 12.9 ppb (13) | 2.7 ppb (3) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 | |
| July 26, 2021, 7 p.m. | 14.4 ppb (14) | 4.2 ppb (4) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 | |
| July 26, 2021, 6 p.m. | 17.6 ppb (17) | 4.7 ppb (5) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 | |
| July 26, 2021, 5 p.m. | 6.7 ppb (7) | 0.5 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 | |
| July 26, 2021, 4 p.m. | 29.5 ppb (28) | 11.2 ppb (11) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 | |
| July 26, 2021, 3 p.m. | 32.2 ppb (31) | 12.7 ppb (12) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 | |
| July 26, 2021, 2 p.m. | 11.0 ppb (11) | 3.0 ppb (3) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 | |
| July 26, 2021, 1 p.m. | 29.6 ppb (28) | 14.0 ppb (14) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 | |
| July 26, 2021, noon | 44.1 ppb (42) | 26.2 ppb (25) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 | |
| July 26, 2021, 11 a.m. | 29.9 ppb (29) | 16.7 ppb (16) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 | |
| July 26, 2021, 10 a.m. | 61.8 ppb (60) | 47.8 ppb (46) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 60.0 | |
| July 26, 2021, 9 a.m. | 27.6 ppb (27) | 16.9 ppb (16) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 | |
| July 26, 2021, 8 a.m. | 34.1 ppb (33) | 21.7 ppb (21) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 | |
| July 26, 2021, 7 a.m. | 33.7 ppb (32) | 19.2 ppb (19) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 | |
| July 26, 2021, 6 a.m. | 54.0 ppb (51) | 33.2 ppb (32) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 | |
| July 26, 2021, 5 a.m. | 33.3 ppb (32) | 12.7 ppb (12) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 | |
| July 26, 2021, 4 a.m. | 19.4 ppb (19) | 0.7 ppb (1) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 | |
| July 26, 2021, 3 a.m. | 13.0 ppb (13) | 0.9 ppb (1) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 | |
| July 26, 2021, 2 a.m. | 19.4 ppb (19) | 3.8 ppb (4) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 | |
| July 26, 2021, 1 a.m. | 25.8 ppb (25) | 8.0 ppb (8) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 | |
| July 26, 2021, midnight | 41.3 ppb (39) | 16.6 ppb (16) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 | |
| July 25, 2021, 11 p.m. | 22.9 ppb (22) | 8.6 ppb (9) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 | |
| July 25, 2021, 8 p.m. | 2.2 ppb (3) | 0.1 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 | |
| July 25, 2021, 7 p.m. | 3.9 ppb (4) | 0.9 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 | |
| July 25, 2021, 6 p.m. | 7.4 ppb (7) | 2.4 ppb (3) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 | |
| July 25, 2021, 5 p.m. | 13.9 ppb (14) | 4.7 ppb (5) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 | |
| July 25, 2021, 4 p.m. | 9.1 ppb (9) | 2.8 ppb (3) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 | |
| July 25, 2021, 3 p.m. | 3.5 ppb (4) | 0.8 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 | |
| July 25, 2021, 2 p.m. | 7.5 ppb (8) | 1.4 ppb (2) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 | |
| July 25, 2021, 1 p.m. | 9.7 ppb (10) | 3.1 ppb (3) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 | |
| July 25, 2021, noon | 4.7 ppb (5) | 1.1 ppb (2) | N/A | 4.0 ppb (4) | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 | |
| July 25, 2021, 11 a.m. | 9.1 ppb (9) | 4.3 ppb (5) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 | |
| July 25, 2021, 10 a.m. | 7.3 ppb (7) | 2.9 ppb (3) | N/A | 4.0 ppb (4) | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 | |
| July 25, 2021, 9 a.m. | 9.2 ppb (9) | 1.4 ppb (2) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 | |
| July 25, 2021, 8 a.m. | 23.4 ppb (23) | 7.3 ppb (7) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 | |
| July 25, 2021, 7 a.m. | 19.1 ppb (19) | 5.1 ppb (5) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 | |
| July 25, 2021, 6 a.m. | 16.5 ppb (16) | 4.0 ppb (4) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 | |
| July 25, 2021, 5 a.m. | 8.9 ppb (9) | 1.1 ppb (2) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 | |
| July 25, 2021, 4 a.m. | 2.6 ppb (3) | 0.2 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 | |
| July 25, 2021, 3 a.m. | 3.1 ppb (3) | 0.4 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 | |
| July 25, 2021, 2 a.m. | 2.6 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 | |
| July 25, 2021, 1 a.m. | 2.8 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 | |
| July 25, 2021, midnight | 3.1 ppb (3) | 0.1 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 | |
| July 24, 2021, 11 p.m. | 2.4 ppb (3) | 0.2 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 | |
| July 24, 2021, 10 p.m. | 1.5 ppb (2) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 | |
| July 24, 2021, 9 p.m. | 1.2 ppb (2) | 0.2 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 | |
| July 24, 2021, 8 p.m. | 2.2 ppb (3) | 0.4 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 | |
| July 24, 2021, 7 p.m. | 2.0 ppb (2) | 0.1 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 | |
| July 24, 2021, 6 p.m. | 3.1 ppb (3) | 0.5 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 | |
| July 24, 2021, 5 p.m. | 2.7 ppb (3) | 0.3 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 | |
| July 24, 2021, 4 p.m. | 4.0 ppb (4) | 0.7 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 | |
| July 24, 2021, 3 p.m. | 3.7 ppb (4) | 0.4 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 | |
| July 24, 2021, 2 p.m. | 3.0 ppb (3) | 0.6 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 | |
| July 24, 2021, 1 p.m. | 3.8 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 | |
| July 24, 2021, noon | 25.4 ppb (24) | 16.8 ppb (16) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 | |
| July 24, 2021, 11 a.m. | 46.3 ppb (44) | 39.2 ppb (37) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 | |
| July 24, 2021, 10 a.m. | 58.2 ppb (56) | 50.8 ppb (48) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 | |
| July 24, 2021, 9 a.m. | 46.0 ppb (44) | 38.7 ppb (37) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 | |
| July 24, 2021, 8 a.m. | 59.3 ppb (57) | 49.3 ppb (47) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 57.0 | |
| July 24, 2021, 7 a.m. | 54.8 ppb (52) | 45.1 ppb (43) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 | |
| July 24, 2021, 6 a.m. | 49.8 ppb (47) | 39.4 ppb (38) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 | |
| July 24, 2021, 5 a.m. | 47.0 ppb (45) | 36.1 ppb (35) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 | |
| July 24, 2021, 4 a.m. | 45.6 ppb (44) | 31.9 ppb (31) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 | |
| July 24, 2021, 3 a.m. | 54.2 ppb (52) | 36.9 ppb (35) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 | |
| July 24, 2021, 2 a.m. | 37.6 ppb (36) | 17.3 ppb (17) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 | |
| July 24, 2021, 1 a.m. | 42.4 ppb (40) | 20.6 ppb (20) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 | |
| July 24, 2021, midnight | 34.8 ppb (33) | 13.7 ppb (13) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 | |
| July 23, 2021, 11 p.m. | 28.6 ppb (27) | 8.3 ppb (8) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 | |
| July 23, 2021, 10 p.m. | 42.5 ppb (41) | 16.0 ppb (16) | N/A | 26.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 | |
| July 23, 2021, 9 p.m. | 7.5 ppb (8) | 1.5 ppb (2) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 | |
| July 23, 2021, 8 p.m. | 1.9 ppb (2) | 0.1 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 | |
| July 23, 2021, 7 p.m. | 20.1 ppb (19) | 5.2 ppb (5) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 | |
| July 23, 2021, 6 p.m. | 26.8 ppb (26) | 7.4 ppb (7) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 | |
| July 23, 2021, 5 p.m. | 32.5 ppb (31) | 9.9 ppb (10) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 | |
| July 23, 2021, 4 p.m. | 10.2 ppb (10) | 2.4 ppb (3) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 | |
| July 23, 2021, 3 p.m. | 50.9 ppb (49) | 21.9 ppb (21) | N/A | 29.0 ppb (28) | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 | |
| July 23, 2021, 2 p.m. | 42.4 ppb (40) | 19.3 ppb (19) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 | |
| July 23, 2021, 1 p.m. | 64.2 ppb (62) | 41.5 ppb (40) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 62.0 | |
| July 23, 2021, noon | 83.5 ppb (83) | 63.9 ppb (62) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 83.0 | |
| July 23, 2021, 11 a.m. | 53.1 ppb (51) | 39.6 ppb (38) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 | |
| July 23, 2021, 10 a.m. | 46.9 ppb (45) | 35.2 ppb (34) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 | |
| July 23, 2021, 9 a.m. | 41.2 ppb (39) | 30.2 ppb (29) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 | |
| July 23, 2021, 8 a.m. | 47.1 ppb (45) | 33.2 ppb (32) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 | |
| July 23, 2021, 7 a.m. | 35.3 ppb (34) | 23.4 ppb (23) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 | |
| July 23, 2021, 6 a.m. | 37.8 ppb (36) | 24.5 ppb (24) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 | |
| July 23, 2021, 5 a.m. | 56.5 ppb (54) | 37.6 ppb (36) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 | |
| July 23, 2021, 4 a.m. | 55.3 ppb (53) | 33.9 ppb (32) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 | |
| July 23, 2021, 3 a.m. | 45.2 ppb (43) | 17.6 ppb (17) | N/A | 28.0 ppb (27) | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 | |
| July 23, 2021, 2 a.m. | 41.8 ppb (40) | 12.3 ppb (12) | N/A | 29.0 ppb (28) | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 | |
| July 23, 2021, 1 a.m. | 31.2 ppb (30) | 4.7 ppb (5) | N/A | 27.0 ppb (26) | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 | |
| July 23, 2021, midnight | 50.9 ppb (49) | 12.5 ppb (12) | N/A | 38.0 ppb (36) | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 | |
| July 22, 2021, 11 p.m. | 20.9 ppb (20) | 2.7 ppb (3) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 | |
| July 22, 2021, 10 p.m. | 19.7 ppb (19) | 3.6 ppb (4) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 | |
| July 22, 2021, 9 p.m. | 32.6 ppb (31) | 8.7 ppb (9) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 | |
| July 22, 2021, 8 p.m. | 21.3 ppb (21) | 6.1 ppb (6) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 | |
| July 22, 2021, 7 p.m. | 21.7 ppb (21) | 6.7 ppb (7) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 | |
| July 22, 2021, 6 p.m. | 13.7 ppb (13) | 2.9 ppb (3) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 | |
| July 22, 2021, 5 p.m. | 26.3 ppb (25) | 10.0 ppb (10) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 | |
| July 22, 2021, 4 p.m. | 28.5 ppb (27) | 11.3 ppb (11) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 | |
| July 22, 2021, 3 p.m. | 33.8 ppb (32) | 13.3 ppb (13) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 | |
| July 22, 2021, 2 p.m. | 40.9 ppb (39) | 22.1 ppb (21) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 | |
| July 22, 2021, 1 p.m. | 58.2 ppb (56) | 38.2 ppb (37) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 | |
| July 22, 2021, noon | 59.8 ppb (58) | 45.9 ppb (44) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 | |
| July 22, 2021, 11 a.m. | 32.7 ppb (31) | 23.4 ppb (23) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 | |
| July 22, 2021, 10 a.m. | 30.0 ppb (29) | 21.5 ppb (21) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 | |
| July 22, 2021, 9 a.m. | 52.4 ppb (50) | 42.3 ppb (40) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 | |
| July 22, 2021, 8 a.m. | 57.4 ppb (55) | 48.2 ppb (46) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 | |
| July 22, 2021, 7 a.m. | 42.6 ppb (41) | 33.2 ppb (32) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 | |
| July 22, 2021, 6 a.m. | 39.5 ppb (38) | 27.2 ppb (26) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 | |
| July 22, 2021, 5 a.m. | 29.9 ppb (29) | 15.3 ppb (15) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 | |
| July 22, 2021, 4 a.m. | 42.9 ppb (41) | 23.4 ppb (23) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 | |
| July 22, 2021, 3 a.m. | 52.5 ppb (50) | 31.4 ppb (30) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 | |
| July 22, 2021, 2 a.m. | 32.4 ppb (31) | 14.0 ppb (14) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 | |
| July 22, 2021, 1 a.m. | 17.2 ppb (17) | 1.2 ppb (2) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 | |
| July 22, 2021, midnight | 3.9 ppb (4) | 0.4 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 | |
| July 21, 2021, 11 p.m. | 33.6 ppb (32) | 10.7 ppb (11) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 | |
| July 21, 2021, 10 p.m. | 13.0 ppb (13) | 2.5 ppb (3) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 | |
| July 21, 2021, 9 p.m. | 5.8 ppb (6) | 0.7 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 | |
| July 21, 2021, 8 p.m. | 3.3 ppb (4) | 0.5 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 | |
| July 21, 2021, 7 p.m. | 3.6 ppb (4) | 0.8 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 | |
| July 21, 2021, 6 p.m. | 3.7 ppb (4) | 0.9 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 | |
| July 21, 2021, 5 p.m. | 7.7 ppb (8) | 2.9 ppb (3) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 |