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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| April 20, 2021, 9 a.m. | 68.7 ppb (67) | 50.0 ppb (48) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | N/A | 67.0 | |
| April 20, 2021, 8 a.m. | 73.1 ppb (72) | 51.4 ppb (49) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | N/A | N/A | N/A | 72.0 | |
| April 20, 2021, 7 a.m. | 53.9 ppb (51) | 31.4 ppb (30) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 | |
| April 20, 2021, 6 a.m. | 48.9 ppb (47) | 24.4 ppb (24) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 | |
| April 20, 2021, 5 a.m. | 43.3 ppb (41) | 17.6 ppb (17) | N/A | 26.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 | |
| April 20, 2021, 4 a.m. | 30.4 ppb (29) | 4.0 ppb (4) | N/A | 26.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 | |
| April 20, 2021, 3 a.m. | 30.1 ppb (29) | 2.5 ppb (3) | N/A | 28.0 ppb (27) | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 | |
| April 20, 2021, 2 a.m. | 41.4 ppb (40) | 7.3 ppb (7) | N/A | 34.0 ppb (33) | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 | |
| April 20, 2021, 1 a.m. | 54.0 ppb (51) | 16.7 ppb (16) | N/A | 37.0 ppb (35) | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 | |
| April 20, 2021, midnight | 61.8 ppb (60) | 20.5 ppb (20) | N/A | 41.0 ppb (39) | N/A | N/A | N/A | N/A | N/A | N/A | 60.0 | |
| April 19, 2021, 11 p.m. | 46.2 ppb (44) | 15.5 ppb (15) | N/A | 31.0 ppb (30) | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 | |
| April 19, 2021, 10 p.m. | 41.8 ppb (40) | 16.2 ppb (16) | N/A | 26.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 | |
| April 19, 2021, 9 p.m. | 28.0 ppb (27) | 10.1 ppb (10) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 | |
| April 19, 2021, 8 p.m. | 29.0 ppb (28) | 12.3 ppb (12) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 | |
| April 19, 2021, 7 p.m. | 16.0 ppb (16) | 6.1 ppb (6) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 | |
| April 19, 2021, 6 p.m. | 23.3 ppb (22) | 10.3 ppb (10) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 | |
| April 19, 2021, 5 p.m. | 30.1 ppb (29) | 13.6 ppb (13) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 | |
| April 19, 2021, 4 p.m. | 34.6 ppb (33) | 16.8 ppb (16) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 | |
| April 19, 2021, 3 p.m. | 27.8 ppb (27) | 13.5 ppb (13) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 | |
| April 19, 2021, 2 p.m. | 37.1 ppb (35) | 19.2 ppb (19) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 | |
| April 19, 2021, 1 p.m. | 44.3 ppb (42) | 23.9 ppb (23) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 | |
| April 19, 2021, noon | 42.1 ppb (40) | 21.2 ppb (20) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 | |
| April 19, 2021, 11 a.m. | 33.1 ppb (32) | 9.3 ppb (9) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 | |
| April 19, 2021, 10 a.m. | 39.1 ppb (37) | 14.0 ppb (14) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 | |
| April 19, 2021, 9 a.m. | 21.6 ppb (21) | 6.2 ppb (6) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 | |
| April 19, 2021, 8 a.m. | 13.2 ppb (13) | 2.8 ppb (3) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 | |
| April 19, 2021, 7 a.m. | 14.4 ppb (14) | 2.0 ppb (2) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 | |
| April 19, 2021, 6 a.m. | 11.4 ppb (11) | 1.3 ppb (2) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 | |
| April 19, 2021, 5 a.m. | 14.4 ppb (14) | 2.0 ppb (2) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 | |
| April 19, 2021, 4 a.m. | 20.9 ppb (20) | 4.8 ppb (5) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 | |
| April 19, 2021, 3 a.m. | 31.2 ppb (30) | 6.9 ppb (7) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 | |
| April 19, 2021, 2 a.m. | 37.6 ppb (36) | 8.2 ppb (8) | N/A | 29.0 ppb (28) | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 | |
| April 19, 2021, 1 a.m. | 48.7 ppb (46) | 13.7 ppb (13) | N/A | 35.0 ppb (34) | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 | |
| April 19, 2021, midnight | 37.4 ppb (36) | 8.8 ppb (9) | N/A | 29.0 ppb (28) | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 | |
| April 18, 2021, 11 p.m. | 18.1 ppb (18) | 3.5 ppb (4) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 | |
| April 18, 2021, 8 p.m. | 13.3 ppb (13) | 4.4 ppb (5) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 | |
| April 18, 2021, 7 p.m. | 11.8 ppb (12) | 4.2 ppb (4) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 | |
| April 18, 2021, 6 p.m. | 6.4 ppb (7) | 1.7 ppb (2) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 | |
| April 18, 2021, 5 p.m. | 7.3 ppb (7) | 1.8 ppb (2) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 | |
| April 18, 2021, 4 p.m. | 7.2 ppb (7) | 2.0 ppb (2) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 | |
| April 18, 2021, 3 p.m. | 9.3 ppb (9) | 3.2 ppb (4) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 | |
| April 18, 2021, 2 p.m. | 12.1 ppb (12) | 4.5 ppb (5) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 | |
| April 18, 2021, 1 p.m. | 15.9 ppb (15) | 5.8 ppb (6) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 | |
| April 18, 2021, noon | 18.8 ppb (18) | 6.4 ppb (7) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 | |
| April 18, 2021, 11 a.m. | 24.8 ppb (24) | 8.3 ppb (8) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 | |
| April 18, 2021, 10 a.m. | 16.4 ppb (16) | 3.3 ppb (4) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 | |
| April 18, 2021, 9 a.m. | 19.8 ppb (19) | 4.1 ppb (4) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 | |
| April 18, 2021, 8 a.m. | 7.4 ppb (7) | 0.6 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 | |
| April 18, 2021, 7 a.m. | 15.8 ppb (15) | 3.5 ppb (4) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 | |
| April 18, 2021, 6 a.m. | 14.5 ppb (14) | 2.1 ppb (2) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 | |
| April 18, 2021, 5 a.m. | 14.4 ppb (14) | 2.9 ppb (3) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 | |
| April 18, 2021, 4 a.m. | 17.4 ppb (17) | 4.3 ppb (5) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 | |
| April 18, 2021, 3 a.m. | 26.2 ppb (25) | 6.5 ppb (7) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 | |
| April 18, 2021, 2 a.m. | 35.5 ppb (34) | 7.5 ppb (8) | N/A | 28.0 ppb (27) | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 | |
| April 18, 2021, 1 a.m. | 40.0 ppb (38) | 10.1 ppb (10) | N/A | 30.0 ppb (29) | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 | |
| April 18, 2021, midnight | 36.5 ppb (35) | 9.9 ppb (10) | N/A | 27.0 ppb (26) | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 | |
| April 17, 2021, 11 p.m. | 20.2 ppb (20) | 3.6 ppb (4) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 | |
| April 17, 2021, 10 p.m. | 4.5 ppb (5) | 0.4 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 | |
| April 17, 2021, 9 p.m. | 8.8 ppb (9) | 2.2 ppb (3) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 | |
| April 17, 2021, 8 p.m. | 3.7 ppb (4) | 0.3 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 | |
| April 17, 2021, 7 p.m. | 14.9 ppb (15) | 4.6 ppb (5) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 | |
| April 17, 2021, 6 p.m. | 7.4 ppb (7) | 1.1 ppb (2) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 | |
| April 17, 2021, 5 p.m. | 15.4 ppb (15) | 3.9 ppb (4) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 | |
| April 17, 2021, 4 p.m. | 8.8 ppb (9) | 2.4 ppb (3) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 | |
| April 17, 2021, 3 p.m. | 9.0 ppb (9) | 2.1 ppb (2) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 | |
| April 17, 2021, 2 p.m. | 26.6 ppb (26) | 10.6 ppb (10) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 | |
| April 17, 2021, 1 p.m. | 23.6 ppb (23) | 8.9 ppb (9) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 | |
| April 17, 2021, noon | 30.4 ppb (29) | 12.9 ppb (13) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 | |
| April 17, 2021, 11 a.m. | 33.9 ppb (32) | 16.0 ppb (16) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 | |
| April 17, 2021, 10 a.m. | 33.9 ppb (32) | 12.4 ppb (12) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 | |
| April 17, 2021, 9 a.m. | 33.0 ppb (32) | 11.6 ppb (11) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 | |
| April 17, 2021, 8 a.m. | 16.9 ppb (16) | 1.6 ppb (2) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 | |
| April 17, 2021, 7 a.m. | 10.9 ppb (11) | 0.2 ppb (1) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 | |
| April 17, 2021, 6 a.m. | 19.4 ppb (19) | 0.5 ppb (1) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 | |
| April 17, 2021, 5 a.m. | 25.7 ppb (25) | 0.6 ppb (1) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 | |
| April 17, 2021, 4 a.m. | 38.8 ppb (37) | 8.9 ppb (9) | N/A | 30.0 ppb (29) | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 | |
| April 17, 2021, 3 a.m. | 28.8 ppb (28) | 5.3 ppb (5) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 | |
| April 17, 2021, 2 a.m. | 16.2 ppb (16) | 2.5 ppb (3) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 | |
| April 17, 2021, 1 a.m. | 8.4 ppb (8) | 0.3 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 | |
| April 17, 2021, midnight | 7.0 ppb (7) | 0.1 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 | |
| April 16, 2021, 11 p.m. | 4.6 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 | |
| April 16, 2021, 10 p.m. | 4.6 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 | |
| April 16, 2021, 9 p.m. | 6.0 ppb (6) | 0.4 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 | |
| April 16, 2021, 8 p.m. | 5.1 ppb (5) | 1.0 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 | |
| April 16, 2021, 7 p.m. | 11.4 ppb (11) | 5.0 ppb (5) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 | |
| April 16, 2021, 6 p.m. | 10.5 ppb (10) | 4.9 ppb (5) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 | |
| April 16, 2021, 5 p.m. | 5.8 ppb (6) | 2.4 ppb (3) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 | |
| April 16, 2021, 4 p.m. | 11.2 ppb (11) | 4.7 ppb (5) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 | |
| April 16, 2021, 3 p.m. | 29.9 ppb (29) | 18.6 ppb (18) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 | |
| April 16, 2021, 2 p.m. | 33.9 ppb (32) | 19.6 ppb (19) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 | |
| April 16, 2021, 1 p.m. | 94.6 ppb (95) | 64.0 ppb (62) | N/A | 31.0 ppb (30) | N/A | N/A | N/A | N/A | N/A | N/A | 95.0 | |
| April 16, 2021, noon | 90.0 ppb (90) | 62.0 ppb (60) | N/A | 28.0 ppb (27) | N/A | N/A | N/A | N/A | N/A | N/A | 90.0 | |
| April 16, 2021, 11 a.m. | 39.0 ppb (37) | 15.3 ppb (15) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 | |
| April 16, 2021, 10 a.m. | 49.5 ppb (47) | 25.1 ppb (24) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 | |
| April 16, 2021, 9 a.m. | 49.2 ppb (47) | 28.8 ppb (28) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 | |
| April 16, 2021, 8 a.m. | 43.6 ppb (42) | 25.4 ppb (24) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 | |
| April 16, 2021, 7 a.m. | 19.7 ppb (19) | 4.8 ppb (5) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 | |
| April 16, 2021, 6 a.m. | 38.4 ppb (37) | 16.4 ppb (16) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 | |
| April 16, 2021, 5 a.m. | 19.0 ppb (18) | 5.9 ppb (6) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 | |
| April 16, 2021, 4 a.m. | 17.1 ppb (17) | 4.5 ppb (5) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 | |
| April 16, 2021, 3 a.m. | 21.9 ppb (21) | 7.3 ppb (7) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 | |
| April 16, 2021, 2 a.m. | 24.9 ppb (24) | 9.0 ppb (9) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 | |
| April 16, 2021, 1 a.m. | 33.1 ppb (32) | 8.3 ppb (8) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 | |
| April 16, 2021, midnight | 39.2 ppb (37) | 9.4 ppb (9) | N/A | 30.0 ppb (29) | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 | |
| April 15, 2021, 11 p.m. | 32.0 ppb (31) | 10.6 ppb (10) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 | |
| April 15, 2021, 10 p.m. | 27.3 ppb (26) | 9.4 ppb (9) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 | |
| April 15, 2021, 9 p.m. | 24.1 ppb (23) | 8.1 ppb (8) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 | |
| April 15, 2021, 8 p.m. | 26.0 ppb (25) | 9.4 ppb (9) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 | |
| April 15, 2021, 7 p.m. | 22.1 ppb (21) | 8.4 ppb (8) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 | |
| April 15, 2021, 6 p.m. | 24.8 ppb (24) | 10.0 ppb (10) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 | |
| April 15, 2021, 5 p.m. | 36.7 ppb (35) | 17.9 ppb (17) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 | |
| April 15, 2021, 4 p.m. | 41.6 ppb (40) | 22.0 ppb (21) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 | |
| April 15, 2021, 3 p.m. | 46.1 ppb (44) | 25.4 ppb (24) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 | |
| April 15, 2021, 2 p.m. | 45.0 ppb (43) | 25.3 ppb (24) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 | |
| April 15, 2021, 1 p.m. | 45.4 ppb (43) | 22.7 ppb (22) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 | |
| April 15, 2021, noon | 62.5 ppb (61) | 35.6 ppb (34) | N/A | 27.0 ppb (26) | N/A | N/A | N/A | N/A | N/A | N/A | 61.0 | |
| April 15, 2021, 11 a.m. | 56.2 ppb (54) | 29.4 ppb (28) | N/A | 27.0 ppb (26) | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 | |
| April 15, 2021, 10 a.m. | 45.0 ppb (43) | 20.8 ppb (20) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 | |
| April 15, 2021, 9 a.m. | 16.4 ppb (16) | 3.2 ppb (4) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 | |
| April 15, 2021, 8 a.m. | 8.4 ppb (8) | 0.5 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 | |
| April 15, 2021, 7 a.m. | 8.0 ppb (8) | 0.9 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 | |
| April 15, 2021, 6 a.m. | 7.2 ppb (7) | 0.1 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 | |
| April 15, 2021, 5 a.m. | 9.7 ppb (10) | 0.0 ppb (0) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 | |
| April 15, 2021, 4 a.m. | 13.5 ppb (13) | 0.8 ppb (1) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 | |
| April 15, 2021, 3 a.m. | 7.8 ppb (8) | 0.0 ppb (0) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 | |
| April 15, 2021, 2 a.m. | 11.2 ppb (11) | 1.3 ppb (2) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 | |
| April 15, 2021, 1 a.m. | 11.5 ppb (11) | 0.8 ppb (1) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 | |
| April 15, 2021, midnight | 29.8 ppb (29) | 6.9 ppb (7) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 | |
| April 14, 2021, 11 p.m. | 6.7 ppb (7) | 0.0 ppb (0) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 | |
| April 14, 2021, 10 p.m. | 10.7 ppb (11) | 0.2 ppb (1) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 | |
| April 14, 2021, 9 p.m. | 8.6 ppb (9) | 0.4 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 | |
| April 14, 2021, 8 p.m. | 5.8 ppb (6) | 0.0 ppb (0) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 | |
| April 14, 2021, 7 p.m. | 2.3 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 | |
| April 14, 2021, 6 p.m. | 2.0 ppb (2) | 0.3 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 | |
| April 14, 2021, 5 p.m. | 2.5 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 | |
| April 14, 2021, 4 p.m. | 12.2 ppb (12) | 1.9 ppb (2) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 | |
| April 14, 2021, 3 p.m. | 26.8 ppb (26) | 7.2 ppb (7) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 | |
| April 14, 2021, 2 p.m. | 54.2 ppb (52) | 21.9 ppb (21) | N/A | 32.0 ppb (31) | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 | |
| April 14, 2021, 1 p.m. | 99.5 ppb (100) | 67.1 ppb (65) | N/A | 32.0 ppb (31) | N/A | N/A | N/A | N/A | N/A | N/A | 100.0 | |
| April 14, 2021, noon | 110.1 ppb (103) | 96.5 ppb (97) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 103.0 | |
| April 14, 2021, 11 a.m. | 88.7 ppb (88) | 76.8 ppb (76) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 88.0 | |
| April 14, 2021, 10 a.m. | 87.6 ppb (87) | 72.7 ppb (71) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 87.0 | |
| April 14, 2021, 9 a.m. | 83.7 ppb (83) | 65.4 ppb (64) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 83.0 | |
| April 14, 2021, 8 a.m. | 66.8 ppb (65) | 47.6 ppb (45) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | N/A | 65.0 | |
| April 14, 2021, 7 a.m. | 83.3 ppb (83) | 58.9 ppb (57) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 83.0 | |
| April 14, 2021, 6 a.m. | 82.8 ppb (82) | 54.6 ppb (52) | N/A | 28.0 ppb (27) | N/A | N/A | N/A | N/A | N/A | N/A | 82.0 | |
| April 14, 2021, 5 a.m. | 62.6 ppb (61) | 34.9 ppb (33) | N/A | 28.0 ppb (27) | N/A | N/A | N/A | N/A | N/A | N/A | 61.0 | |
| April 14, 2021, 4 a.m. | 69.2 ppb (68) | 38.5 ppb (37) | N/A | 31.0 ppb (30) | N/A | N/A | N/A | N/A | N/A | N/A | 68.0 | |
| April 14, 2021, 3 a.m. | 61.4 ppb (59) | 27.2 ppb (26) | N/A | 34.0 ppb (33) | N/A | N/A | N/A | N/A | N/A | N/A | 59.0 | |
| April 14, 2021, 2 a.m. | 52.5 ppb (50) | 12.8 ppb (13) | N/A | 40.0 ppb (38) | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 | |
| April 14, 2021, 1 a.m. | 67.7 ppb (66) | 22.0 ppb (21) | N/A | 46.0 ppb (44) | N/A | N/A | N/A | N/A | N/A | N/A | 66.0 | |
| April 14, 2021, midnight | 60.1 ppb (58) | 24.8 ppb (24) | N/A | 35.0 ppb (34) | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 | |
| April 13, 2021, 11 p.m. | 8.8 ppb (9) | 0.0 ppb (0) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 | |
| April 13, 2021, 10 p.m. | 4.8 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 | |
| April 13, 2021, 9 p.m. | 7.6 ppb (8) | 0.6 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 | |
| April 13, 2021, 8 p.m. | 17.8 ppb (17) | 3.5 ppb (4) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 | |
| April 13, 2021, 7 p.m. | 13.1 ppb (13) | 1.8 ppb (2) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 | |
| April 13, 2021, 6 p.m. | 18.7 ppb (18) | 5.5 ppb (6) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 | |
| April 13, 2021, 5 p.m. | 13.7 ppb (13) | 4.4 ppb (5) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 | |
| April 13, 2021, 4 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 | |
| April 13, 2021, 3 p.m. | 18.7 ppb (18) | 5.2 ppb (5) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 | |
| April 13, 2021, 2 p.m. | 53.3 ppb (51) | 24.7 ppb (24) | N/A | 29.0 ppb (28) | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 | |
| April 13, 2021, 1 p.m. | 105.5 ppb (102) | 71.8 ppb (70) | N/A | 34.0 ppb (33) | N/A | N/A | N/A | N/A | N/A | N/A | 102.0 | |
| April 13, 2021, noon | 125.5 ppb (106) | 104.0 ppb (102) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | N/A | N/A | N/A | 106.0 | |
| April 13, 2021, 11 a.m. | 123.4 ppb (106) | 101.6 ppb (102) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | N/A | N/A | N/A | 106.0 | |
| April 13, 2021, 10 a.m. | 70.6 ppb (69) | 50.9 ppb (49) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 69.0 | |
| April 13, 2021, 9 a.m. | 72.8 ppb (72) | 49.5 ppb (47) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 72.0 | |
| April 13, 2021, 8 a.m. | 61.1 ppb (59) | 36.2 ppb (35) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 59.0 |