Bridgeton MO, US: 38.75264, -90.44884
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 21, 2019, midnight | 2.2 ppb (2) | -0.2 ppb (0) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 2.0 | |
| Jan. 20, 2019, 11 p.m. | 1.1 ppb (1) | -0.4 ppb (0) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 1.0 | |
| Jan. 20, 2019, 10 p.m. | 2.5 ppb (2) | 0.3 ppb (0) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 2.0 | |
| Jan. 20, 2019, 9 p.m. | 1.7 ppb (2) | -0.1 ppb (0) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 2.0 | |
| Jan. 20, 2019, 8 p.m. | 1.8 ppb (2) | -0.1 ppb (0) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 2.0 | |
| Jan. 20, 2019, 7 p.m. | 1.6 ppb (1) | -0.1 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 2.0 | |
| Jan. 20, 2019, 6 p.m. | 1.4 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 1.0 | |
| Jan. 20, 2019, 5 p.m. | 3.1 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 3.0 | |
| Jan. 20, 2019, 4 p.m. | 3.8 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 4.0 | |
| Jan. 20, 2019, 3 p.m. | 2.3 ppb (2) | 0.3 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 2.0 | |
| Jan. 20, 2019, 2 p.m. | 2.9 ppb (3) | 0.5 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| Jan. 20, 2019, 1 p.m. | 2.3 ppb (2) | -0.3 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| Jan. 20, 2019, noon | 2.0 ppb (2) | -0.4 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 2.0 | |
| Jan. 20, 2019, 11 a.m. | 1.4 ppb (1) | -0.6 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 2.0 | |
| Jan. 20, 2019, 10 a.m. | 1.0 ppb (1) | -0.6 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 2.0 | |
| Jan. 20, 2019, 9 a.m. | 0.7 ppb (1) | -0.6 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 1.0 | |
| Jan. 20, 2019, 8 a.m. | 0.7 ppb (1) | -0.6 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 1.0 | |
| Jan. 20, 2019, 7 a.m. | 0.4 ppb (0) | -0.6 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 1.0 | |
| Jan. 20, 2019, 6 a.m. | 0.3 ppb (0) | -0.7 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 1.0 | |
| Jan. 20, 2019, 5 a.m. | 0.2 ppb (0) | -0.5 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 1.0 | |
| Jan. 20, 2019, 4 a.m. | 0.1 ppb (0) | -0.5 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 1.0 | |
| Jan. 20, 2019, 3 a.m. | 0.2 ppb (0) | -0.5 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 1.0 | |
| Jan. 20, 2019, 2 a.m. | 0.4 ppb (0) | -0.6 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 1.0 | |
| Jan. 20, 2019, 1 a.m. | 0.6 ppb (1) | -0.4 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 1.0 | |
| Jan. 20, 2019, midnight | 0.6 ppb (1) | -0.5 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 1.0 | |
| Jan. 19, 2019, 11 p.m. | 1.2 ppb (1) | -0.5 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 2.0 | |
| Jan. 19, 2019, 10 p.m. | 1.3 ppb (1) | -0.5 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 2.0 | |
| Jan. 19, 2019, 9 p.m. | 1.7 ppb (2) | -0.4 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 2.0 | |
| Jan. 19, 2019, 8 p.m. | 2.2 ppb (2) | -0.3 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| Jan. 19, 2019, 7 p.m. | 3.3 ppb (3) | -0.3 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| Jan. 19, 2019, 6 p.m. | 4.5 ppb (4) | 0.1 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| Jan. 19, 2019, 5 p.m. | 4.7 ppb (4) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 5.0 | |
| Jan. 19, 2019, 4 p.m. | 4.5 ppb (4) | 0.2 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| Jan. 19, 2019, 3 p.m. | 3.5 ppb (3) | -0.1 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| Jan. 19, 2019, 2 p.m. | 3.5 ppb (3) | -0.2 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| Jan. 19, 2019, 1 p.m. | 3.8 ppb (4) | -0.1 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| Jan. 19, 2019, noon | 4.5 ppb (4) | -0.1 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 5.0 | |
| Jan. 19, 2019, 11 a.m. | 3.3 ppb (3) | -0.4 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| Jan. 19, 2019, 10 a.m. | 3.0 ppb (3) | -0.4 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| Jan. 19, 2019, 9 a.m. | 4.0 ppb (4) | -0.4 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| Jan. 19, 2019, 8 a.m. | 4.9 ppb (5) | -0.5 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 5.0 | |
| Jan. 19, 2019, 7 a.m. | 7.5 ppb (7) | -0.4 ppb (0) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 7.0 | |
| Jan. 19, 2019, 6 a.m. | 9.9 ppb (9) | 0.2 ppb (0) | N/A | 10.0 ppb (9) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 9.0 | |
| Jan. 19, 2019, 5 a.m. | 10.7 ppb (10) | 0.7 ppb (1) | N/A | 10.0 ppb (9) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 10.0 | |
| Jan. 19, 2019, 4 a.m. | 9.4 ppb (9) | -0.2 ppb (0) | N/A | 10.0 ppb (9) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 9.0 | |
| Jan. 19, 2019, 3 a.m. | 10.8 ppb (10) | 1.0 ppb (1) | N/A | 10.0 ppb (9) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 10.0 | |
| Jan. 19, 2019, 2 a.m. | 10.2 ppb (9) | 2.4 ppb (2) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 9.0 | |
| Jan. 19, 2019, 1 a.m. | 14.6 ppb (14) | 4.8 ppb (4) | N/A | 10.0 ppb (9) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 14.0 | |
| Jan. 19, 2019, midnight | 16.6 ppb (15) | 5.2 ppb (5) | N/A | 11.0 ppb (10) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 15.0 | |
| Jan. 18, 2019, 11 p.m. | 17.0 ppb (16) | 5.3 ppb (5) | N/A | 12.0 ppb (11) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 16.0 | |
| Jan. 18, 2019, 10 p.m. | 29.2 ppb (27) | 13.3 ppb (12) | N/A | 16.0 ppb (15) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 27.0 | |
| Jan. 18, 2019, 9 p.m. | 21.8 ppb (20) | 7.5 ppb (7) | N/A | 14.0 ppb (13) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 20.0 | |
| Jan. 18, 2019, 8 p.m. | 34.6 ppb (32) | 18.2 ppb (17) | N/A | 16.0 ppb (15) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 32.0 | |
| Jan. 18, 2019, 7 p.m. | 32.0 ppb (30) | 17.3 ppb (16) | N/A | 15.0 ppb (14) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | N/A | 30.0 | |
| Jan. 18, 2019, 6 p.m. | 39.4 ppb (36) | 22.7 ppb (21) | N/A | 16.0 ppb (15) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | N/A | 36.0 | |
| Jan. 18, 2019, 5 p.m. | 48.0 ppb (44) | 29.2 ppb (27) | N/A | 19.0 ppb (18) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 44.0 | |
| Jan. 18, 2019, 4 p.m. | 57.9 ppb (54) | 35.6 ppb (33) | N/A | 22.0 ppb (20) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 54.0 | |
| Jan. 18, 2019, 3 p.m. | 54.6 ppb (51) | 30.7 ppb (28) | N/A | 24.0 ppb (22) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 51.0 | |
| Jan. 18, 2019, 2 p.m. | 32.4 ppb (30) | 11.2 ppb (10) | N/A | 21.0 ppb (19) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 30.0 | |
| Jan. 18, 2019, 1 p.m. | 46.1 ppb (43) | 24.0 ppb (22) | N/A | 22.0 ppb (20) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 43.0 | |
| Jan. 18, 2019, noon | 32.6 ppb (30) | 14.3 ppb (13) | N/A | 18.0 ppb (17) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 30.0 | |
| Jan. 18, 2019, 11 a.m. | 30.6 ppb (28) | 15.0 ppb (14) | N/A | 15.0 ppb (14) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 28.0 | |
| Jan. 18, 2019, 10 a.m. | 14.4 ppb (13) | 4.5 ppb (4) | N/A | 10.0 ppb (9) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 13.0 | |
| Jan. 18, 2019, 9 a.m. | 10.3 ppb (10) | 2.4 ppb (2) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 10.0 | |
| Jan. 18, 2019, 8 a.m. | 2.2 ppb (2) | -0.6 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| Jan. 18, 2019, 7 a.m. | 4.4 ppb (4) | -0.6 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 5.0 | |
| Jan. 18, 2019, 6 a.m. | 6.1 ppb (6) | -0.2 ppb (0) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 6.0 | |
| Jan. 18, 2019, 5 a.m. | 5.5 ppb (5) | -0.1 ppb (0) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 6.0 | |
| Jan. 18, 2019, 4 a.m. | 5.8 ppb (5) | -0.4 ppb (0) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 6.0 | |
| Jan. 18, 2019, 3 a.m. | 5.6 ppb (5) | -0.3 ppb (0) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 6.0 | |
| Jan. 18, 2019, 2 a.m. | 7.3 ppb (7) | 1.0 ppb (1) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 7.0 | |
| Jan. 18, 2019, 1 a.m. | 12.3 ppb (11) | 2.7 ppb (3) | N/A | 10.0 ppb (9) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 11.0 | |
| Jan. 18, 2019, midnight | 11.9 ppb (11) | 2.5 ppb (2) | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 11.0 | |
| Jan. 17, 2019, 11 p.m. | 9.1 ppb (8) | 0.8 ppb (1) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 8.0 | |
| Jan. 17, 2019, 10 p.m. | 10.6 ppb (10) | 1.6 ppb (1) | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 10.0 | |
| Jan. 17, 2019, 9 p.m. | 19.2 ppb (18) | 8.6 ppb (8) | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 18.0 | |
| Jan. 17, 2019, 8 p.m. | 27.9 ppb (26) | 16.2 ppb (15) | N/A | 12.0 ppb (11) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 26.0 | |
| Jan. 17, 2019, 7 p.m. | 13.4 ppb (12) | 5.8 ppb (5) | N/A | 8.0 ppb (7) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 12.0 | |
| Jan. 17, 2019, 6 p.m. | 28.9 ppb (27) | 19.0 ppb (18) | N/A | 10.0 ppb (9) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 27.0 | |
| Jan. 17, 2019, 5 p.m. | 30.9 ppb (29) | 19.4 ppb (18) | N/A | 11.0 ppb (10) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 29.0 | |
| Jan. 17, 2019, 4 p.m. | 43.3 ppb (40) | 27.5 ppb (25) | N/A | 16.0 ppb (15) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 40.0 | |
| Jan. 17, 2019, 3 p.m. | 40.3 ppb (37) | 23.9 ppb (22) | N/A | 16.0 ppb (15) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 37.0 | |
| Jan. 17, 2019, 2 p.m. | 44.0 ppb (41) | 24.6 ppb (23) | N/A | 19.0 ppb (18) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 41.0 | |
| Jan. 17, 2019, 1 p.m. | 31.5 ppb (29) | 12.8 ppb (12) | N/A | 18.0 ppb (17) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 29.0 | |
| Jan. 17, 2019, noon | 33.6 ppb (31) | 13.5 ppb (12) | N/A | 20.0 ppb (19) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 31.0 | |
| Jan. 17, 2019, 11 a.m. | 38.1 ppb (35) | 16.9 ppb (16) | N/A | 21.0 ppb (19) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 35.0 | |
| Jan. 17, 2019, 10 a.m. | 23.7 ppb (22) | 3.8 ppb (4) | N/A | 20.0 ppb (19) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 22.0 | |
| Jan. 17, 2019, 9 a.m. | 25.8 ppb (24) | 4.0 ppb (4) | N/A | 22.0 ppb (20) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 24.0 | |
| Jan. 17, 2019, 8 a.m. | 28.7 ppb (27) | 5.5 ppb (5) | N/A | 23.0 ppb (21) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 27.0 | |
| Jan. 17, 2019, 7 a.m. | 34.5 ppb (32) | 11.2 ppb (10) | N/A | 23.0 ppb (21) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 32.0 | |
| Jan. 17, 2019, 6 a.m. | 26.8 ppb (25) | 4.4 ppb (4) | N/A | 22.0 ppb (20) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 25.0 | |
| Jan. 17, 2019, 5 a.m. | 39.6 ppb (37) | 16.0 ppb (15) | N/A | 23.0 ppb (21) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 37.0 | |
| Jan. 17, 2019, 4 a.m. | 27.9 ppb (26) | 6.9 ppb (6) | N/A | 21.0 ppb (19) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 26.0 | |
| Jan. 17, 2019, 3 a.m. | 25.6 ppb (24) | 3.3 ppb (3) | N/A | 22.0 ppb (20) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 24.0 | |
| Jan. 17, 2019, 2 a.m. | 31.3 ppb (29) | 5.8 ppb (5) | N/A | 25.0 ppb (23) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 29.0 | |
| Jan. 17, 2019, 1 a.m. | 26.4 ppb (24) | 2.3 ppb (2) | N/A | 24.0 ppb (22) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 24.0 | |
| Jan. 17, 2019, midnight | 24.5 ppb (23) | 1.0 ppb (1) | N/A | 23.0 ppb (21) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 23.0 | |
| Jan. 16, 2019, 11 p.m. | 25.5 ppb (24) | 2.5 ppb (2) | N/A | 23.0 ppb (21) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 24.0 | |
| Jan. 16, 2019, 10 p.m. | 10.0 ppb (9) | 1.1 ppb (1) | N/A | 9.0 ppb (8) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 9.0 | |
| Jan. 16, 2019, 9 p.m. | 12.1 ppb (11) | 1.6 ppb (1) | N/A | 11.0 ppb (10) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 11.0 | |
| Jan. 16, 2019, 8 p.m. | 11.4 ppb (11) | 2.1 ppb (2) | N/A | 9.0 ppb (8) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 11.0 | |
| Jan. 16, 2019, 7 p.m. | 9.6 ppb (9) | 2.9 ppb (3) | N/A | 7.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 9.0 | |
| Jan. 16, 2019, 6 p.m. | 5.8 ppb (5) | 1.8 ppb (2) | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 5.0 | |
| Jan. 16, 2019, 5 p.m. | 8.8 ppb (8) | 2.7 ppb (3) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 8.0 | |
| Jan. 16, 2019, 4 p.m. | 6.9 ppb (6) | 1.2 ppb (1) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 6.0 | |
| Jan. 16, 2019, 3 p.m. | 10.2 ppb (9) | 2.4 ppb (2) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 9.0 | |
| Jan. 16, 2019, 2 p.m. | 14.1 ppb (13) | 2.9 ppb (3) | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 13.0 | |
| Jan. 16, 2019, 1 p.m. | 15.0 ppb (14) | 2.6 ppb (2) | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 14.0 | |
| Jan. 16, 2019, noon | 13.9 ppb (13) | 2.4 ppb (2) | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 13.0 | |
| Jan. 16, 2019, 11 a.m. | 33.6 ppb (31) | 18.6 ppb (17) | N/A | 15.0 ppb (14) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 31.0 | |
| Jan. 16, 2019, 10 a.m. | 29.1 ppb (27) | 17.5 ppb (16) | N/A | 11.0 ppb (10) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 27.0 | |
| Jan. 16, 2019, 9 a.m. | 13.2 ppb (12) | 6.4 ppb (6) | N/A | 7.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 12.0 | |
| Jan. 16, 2019, 8 a.m. | 14.2 ppb (13) | 5.6 ppb (5) | N/A | 9.0 ppb (8) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 13.0 | |
| Jan. 16, 2019, 7 a.m. | 12.1 ppb (11) | 4.4 ppb (4) | N/A | 8.0 ppb (7) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 11.0 | |
| Jan. 16, 2019, 6 a.m. | 11.8 ppb (11) | 4.6 ppb (4) | N/A | 7.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 11.0 | |
| Jan. 16, 2019, 5 a.m. | 10.7 ppb (10) | 4.2 ppb (4) | N/A | 7.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 10.0 | |
| Jan. 16, 2019, 4 a.m. | 12.0 ppb (11) | 4.9 ppb (5) | N/A | 7.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 11.0 | |
| Jan. 16, 2019, 3 a.m. | 13.9 ppb (13) | 6.3 ppb (6) | N/A | 8.0 ppb (7) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 13.0 | |
| Jan. 16, 2019, 2 a.m. | 13.1 ppb (12) | 6.6 ppb (6) | N/A | 6.0 ppb (6) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | N/A | 12.0 | |
| Jan. 16, 2019, 1 a.m. | 15.8 ppb (15) | 8.1 ppb (8) | N/A | 8.0 ppb (7) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 15.0 | |
| Jan. 16, 2019, midnight | 23.5 ppb (22) | 13.0 ppb (12) | N/A | 10.0 ppb (9) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 22.0 | |
| Jan. 15, 2019, 11 p.m. | 29.5 ppb (27) | 16.7 ppb (15) | N/A | 13.0 ppb (12) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 27.0 | |
| Jan. 15, 2019, 10 p.m. | 28.9 ppb (27) | 16.8 ppb (16) | N/A | 12.0 ppb (11) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 27.0 | |
| Jan. 15, 2019, 9 p.m. | 33.5 ppb (31) | 20.5 ppb (19) | N/A | 13.0 ppb (12) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 31.0 | |
| Jan. 15, 2019, 8 p.m. | 30.5 ppb (28) | 18.5 ppb (17) | N/A | 12.0 ppb (11) | N/A | 3.0 ppb (4) | N/A | N/A | N/A | N/A | 28.0 | |
| Jan. 15, 2019, 7 p.m. | 31.4 ppb (29) | 19.5 ppb (18) | N/A | 12.0 ppb (11) | N/A | 3.0 ppb (4) | N/A | N/A | N/A | N/A | 29.0 | |
| Jan. 15, 2019, 6 p.m. | 37.9 ppb (35) | 24.3 ppb (23) | N/A | 13.0 ppb (12) | N/A | 6.0 ppb (9) | N/A | N/A | N/A | N/A | 35.0 | |
| Jan. 15, 2019, 5 p.m. | 35.3 ppb (33) | 22.2 ppb (21) | N/A | 13.0 ppb (12) | N/A | 3.0 ppb (4) | N/A | N/A | N/A | N/A | 33.0 | |
| Jan. 15, 2019, 4 p.m. | 40.7 ppb (38) | 27.1 ppb (25) | N/A | 13.0 ppb (12) | N/A | 3.0 ppb (4) | N/A | N/A | N/A | N/A | 38.0 | |
| Jan. 15, 2019, 3 p.m. | 43.0 ppb (40) | 26.7 ppb (25) | N/A | 16.0 ppb (15) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 40.0 | |
| Jan. 15, 2019, 2 p.m. | 41.9 ppb (39) | 24.9 ppb (23) | N/A | 17.0 ppb (16) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 39.0 | |
| Jan. 15, 2019, 1 p.m. | 34.1 ppb (32) | 17.3 ppb (16) | N/A | 17.0 ppb (16) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 32.0 | |
| Jan. 15, 2019, noon | 28.7 ppb (27) | 13.3 ppb (12) | N/A | 15.0 ppb (14) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 27.0 | |
| Jan. 15, 2019, 11 a.m. | 23.9 ppb (22) | 13.7 ppb (13) | N/A | 10.0 ppb (9) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 22.0 | |
| Jan. 15, 2019, 10 a.m. | 11.9 ppb (11) | 5.6 ppb (5) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 11.0 | |
| Jan. 15, 2019, 9 a.m. | 9.9 ppb (9) | 4.0 ppb (4) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 9.0 | |
| Jan. 15, 2019, 8 a.m. | 6.8 ppb (6) | 2.7 ppb (3) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 6.0 | |
| Jan. 15, 2019, 7 a.m. | 6.4 ppb (6) | 2.4 ppb (2) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 6.0 | |
| Jan. 15, 2019, 6 a.m. | 6.6 ppb (6) | 2.0 ppb (2) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 6.0 | |
| Jan. 15, 2019, 5 a.m. | 10.6 ppb (10) | 4.0 ppb (4) | N/A | 7.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 10.0 | |
| Jan. 15, 2019, 4 a.m. | 16.7 ppb (15) | 7.8 ppb (7) | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 15.0 | |
| Jan. 15, 2019, 3 a.m. | 16.8 ppb (16) | 7.8 ppb (7) | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 16.0 | |
| Jan. 15, 2019, 2 a.m. | 20.1 ppb (19) | 10.4 ppb (10) | N/A | 10.0 ppb (9) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 19.0 | |
| Jan. 15, 2019, 1 a.m. | 24.1 ppb (22) | 12.7 ppb (12) | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 22.0 | |
| Jan. 15, 2019, midnight | 29.6 ppb (27) | 15.4 ppb (14) | N/A | 14.0 ppb (13) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 27.0 | |
| Jan. 14, 2019, 11 p.m. | 37.9 ppb (35) | 20.7 ppb (19) | N/A | 17.0 ppb (16) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 35.0 | |
| Jan. 14, 2019, 10 p.m. | 37.6 ppb (35) | 19.6 ppb (18) | N/A | 18.0 ppb (17) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 35.0 | |
| Jan. 14, 2019, 9 p.m. | 41.7 ppb (39) | 22.9 ppb (21) | N/A | 19.0 ppb (18) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 39.0 | |
| Jan. 14, 2019, 8 p.m. | 34.2 ppb (32) | 17.7 ppb (16) | N/A | 16.0 ppb (15) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 32.0 | |
| Jan. 14, 2019, 7 p.m. | 35.2 ppb (33) | 18.4 ppb (17) | N/A | 17.0 ppb (16) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 33.0 | |
| Jan. 14, 2019, 6 p.m. | 28.4 ppb (26) | 14.1 ppb (13) | N/A | 14.0 ppb (13) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 26.0 | |
| Jan. 14, 2019, 5 p.m. | 13.6 ppb (13) | 5.4 ppb (5) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 13.0 | |
| Jan. 14, 2019, 4 p.m. | 11.5 ppb (11) | 3.2 ppb (3) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 11.0 | |
| Jan. 14, 2019, 3 p.m. | 8.5 ppb (8) | 1.8 ppb (2) | N/A | 7.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 8.0 | |
| Jan. 14, 2019, 2 p.m. | 13.3 ppb (12) | 4.2 ppb (4) | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 12.0 | |
| Jan. 14, 2019, 1 p.m. | 11.8 ppb (11) | 1.5 ppb (1) | N/A | 10.0 ppb (9) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 11.0 | |
| Jan. 14, 2019, noon | 9.7 ppb (9) | 0.1 ppb (0) | N/A | 10.0 ppb (9) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 9.0 | |
| Jan. 14, 2019, 11 a.m. | 5.0 ppb (5) | -0.2 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 5.0 | |
| Jan. 14, 2019, 10 a.m. | 4.1 ppb (4) | -0.2 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| Jan. 14, 2019, 9 a.m. | 3.3 ppb (3) | -0.3 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| Jan. 14, 2019, 8 a.m. | 3.8 ppb (4) | -0.6 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| Jan. 14, 2019, 7 a.m. | 4.7 ppb (4) | -0.6 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 5.0 | |
| Jan. 14, 2019, 6 a.m. | 6.4 ppb (6) | -0.4 ppb (0) | N/A | 7.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 6.0 | |
| Jan. 14, 2019, 5 a.m. | 7.2 ppb (7) | -0.3 ppb (0) | N/A | 8.0 ppb (7) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 7.0 | |
| Jan. 14, 2019, 4 a.m. | 6.6 ppb (6) | -0.5 ppb (0) | N/A | 7.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 6.0 | |
| Jan. 14, 2019, 3 a.m. | 7.4 ppb (7) | -0.1 ppb (0) | N/A | 8.0 ppb (7) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 7.0 | |
| Jan. 14, 2019, 2 a.m. | 7.2 ppb (7) | -0.5 ppb (0) | N/A | 8.0 ppb (7) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 7.0 | |
| Jan. 14, 2019, 1 a.m. | 5.4 ppb (5) | -0.4 ppb (0) | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 6.0 |