Baltimore Co MD, US: 39.310833, -76.474444
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sept. 22, 2019, midnight | N/A | 0.0 ppb (0) | 15.6 ppb (14) | 15.0 ppb (14) | N/A | 1.0 ppb (1) | 37.0 ppb (28) | 0.4 ppb (4) | N/A | N/A | 28.0 | |
| Sept. 21, 2019, 11 p.m. | N/A | 0.3 ppb (0) | 15.2 ppb (14) | 17.0 ppb (16) | N/A | 1.0 ppb (1) | 44.0 ppb (34) | 0.4 ppb (4) | N/A | N/A | 34.0 | |
| Sept. 21, 2019, 10 p.m. | N/A | 0.0 ppb (0) | 7.3 ppb (7) | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 60.0 ppb (46) | 0.2 ppb (2) | N/A | N/A | 46.0 | |
| Sept. 21, 2019, 9 p.m. | N/A | 1.0 ppb (1) | 7.2 ppb (7) | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 65.0 ppb (50) | 0.2 ppb (2) | N/A | N/A | 50.0 | |
| Sept. 21, 2019, 8 p.m. | N/A | 0.7 ppb (1) | 7.4 ppb (7) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 66.0 ppb (51) | 0.2 ppb (2) | N/A | N/A | 51.0 | |
| Sept. 21, 2019, 7 p.m. | N/A | 0.5 ppb (0) | 7.8 ppb (7) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 66.0 ppb (51) | 0.2 ppb (2) | N/A | N/A | 51.0 | |
| Sept. 21, 2019, 6 p.m. | N/A | 0.4 ppb (0) | 8.8 ppb (8) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 72.0 ppb (56) | 0.2 ppb (2) | N/A | N/A | 56.0 | |
| Sept. 21, 2019, 5 p.m. | N/A | 1.1 ppb (1) | 12.3 ppb (11) | 9.0 ppb (8) | N/A | 1.0 ppb (1) | 66.0 ppb (51) | 0.2 ppb (2) | N/A | N/A | 51.0 | |
| Sept. 21, 2019, 4 p.m. | N/A | 2.4 ppb (2) | 17.6 ppb (16) | 13.0 ppb (12) | N/A | 1.0 ppb (1) | 52.0 ppb (40) | 0.2 ppb (2) | N/A | N/A | 40.0 | |
| Sept. 21, 2019, 3 p.m. | N/A | 7.2 ppb (7) | 32.7 ppb (30) | 25.0 ppb (23) | N/A | 2.0 ppb (3) | 35.0 ppb (27) | 0.4 ppb (4) | N/A | N/A | 30.0 | |
| Sept. 21, 2019, 2 p.m. | N/A | 17.2 ppb (16) | 47.9 ppb (44) | 32.0 ppb (30) | N/A | 2.0 ppb (3) | 19.0 ppb (15) | 0.4 ppb (4) | N/A | N/A | 44.0 | |
| Sept. 21, 2019, 1 p.m. | N/A | 22.5 ppb (21) | 50.0 ppb (46) | 28.0 ppb (26) | N/A | 1.0 ppb (1) | 11.0 ppb (8) | 0.5 ppb (6) | N/A | N/A | 46.0 | |
| Sept. 21, 2019, noon | N/A | 30.1 ppb (28) | 52.2 ppb (48) | 21.0 ppb (19) | N/A | 1.0 ppb (1) | 4.0 ppb (3) | 0.6 ppb (7) | N/A | N/A | 48.0 | |
| Sept. 21, 2019, 11 a.m. | N/A | 28.2 ppb (26) | 42.9 ppb (40) | 12.0 ppb (11) | N/A | 1.0 ppb (1) | 0.0 ppb (0) | 0.6 ppb (7) | N/A | N/A | 40.0 | |
| Sept. 21, 2019, 10 a.m. | N/A | 19.0 ppb (18) | 35.1 ppb (32) | 13.0 ppb (12) | N/A | 1.0 ppb (1) | 0.0 ppb (0) | 0.4 ppb (4) | N/A | N/A | 32.0 | |
| Sept. 21, 2019, 9 a.m. | N/A | 16.1 ppb (15) | 33.2 ppb (31) | 14.0 ppb (13) | N/A | 1.0 ppb (1) | 0.0 ppb (0) | 0.5 ppb (6) | N/A | N/A | 31.0 | |
| Sept. 21, 2019, 8 a.m. | N/A | 8.2 ppb (8) | 26.3 ppb (24) | 16.0 ppb (15) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.4 ppb (4) | N/A | N/A | 24.0 | |
| Sept. 21, 2019, 7 a.m. | N/A | 2.9 ppb (3) | 21.7 ppb (20) | 17.0 ppb (16) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.4 ppb (4) | N/A | N/A | 20.0 | |
| Sept. 21, 2019, 6 a.m. | N/A | 10.1 ppb (9) | 32.8 ppb (30) | 21.0 ppb (19) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.5 ppb (6) | N/A | N/A | 30.0 | |
| Sept. 21, 2019, 5 a.m. | N/A | 0.3 ppb (0) | 22.3 ppb (21) | 22.0 ppb (20) | N/A | 0.0 ppb (0) | 5.0 ppb (4) | 0.4 ppb (4) | N/A | N/A | 21.0 | |
| Sept. 21, 2019, 4 a.m. | N/A | 4.7 ppb (4) | 33.3 ppb (31) | 27.0 ppb (25) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.6 ppb (7) | N/A | N/A | 31.0 | |
| Sept. 21, 2019, 3 a.m. | N/A | 1.8 ppb (2) | 25.5 ppb (24) | 24.0 ppb (22) | N/A | 0.0 ppb (0) | 3.0 ppb (2) | 0.5 ppb (6) | N/A | N/A | 24.0 | |
| Sept. 21, 2019, 2 a.m. | N/A | 0.3 ppb (0) | 18.4 ppb (17) | 19.0 ppb (18) | N/A | 0.0 ppb (0) | 12.0 ppb (9) | 0.4 ppb (4) | N/A | N/A | 18.0 | |
| Sept. 21, 2019, 1 a.m. | N/A | 0.1 ppb (0) | 12.9 ppb (12) | 12.0 ppb (11) | N/A | 0.0 ppb (0) | 23.0 ppb (18) | 0.3 ppb (3) | N/A | N/A | 18.0 | |
| Sept. 21, 2019, midnight | N/A | 0.7 ppb (1) | 9.8 ppb (9) | 10.0 ppb (9) | N/A | 0.0 ppb (0) | 33.0 ppb (25) | 0.2 ppb (2) | N/A | N/A | 25.0 | |
| Sept. 20, 2019, 11 p.m. | N/A | 0.4 ppb (0) | 7.1 ppb (7) | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | 0.1 ppb (1) | N/A | N/A | 32.0 | |
| Sept. 20, 2019, 10 p.m. | N/A | 0.5 ppb (0) | 4.7 ppb (4) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 45.0 ppb (35) | 0.1 ppb (1) | N/A | N/A | 35.0 | |
| Sept. 20, 2019, 9 p.m. | N/A | 0.5 ppb (0) | 4.7 ppb (4) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.1 ppb (1) | N/A | N/A | 37.0 | |
| Sept. 20, 2019, 8 p.m. | N/A | 0.5 ppb (0) | 4.4 ppb (4) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.1 ppb (1) | N/A | N/A | 40.0 | |
| Sept. 20, 2019, 7 p.m. | N/A | 0.5 ppb (0) | 4.4 ppb (4) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.1 ppb (1) | N/A | N/A | 41.0 | |
| Sept. 20, 2019, 6 p.m. | N/A | 0.8 ppb (1) | 7.2 ppb (7) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 54.0 ppb (42) | 0.1 ppb (1) | N/A | N/A | 42.0 | |
| Sept. 20, 2019, 5 p.m. | N/A | 1.8 ppb (2) | 11.0 ppb (10) | 9.0 ppb (8) | N/A | 0.0 ppb (0) | 47.0 ppb (36) | 0.1 ppb (1) | N/A | N/A | 36.0 | |
| Sept. 20, 2019, 4 p.m. | N/A | 2.1 ppb (2) | 11.1 ppb (10) | 9.0 ppb (8) | N/A | 1.0 ppb (1) | 42.0 ppb (32) | 0.1 ppb (1) | N/A | N/A | 32.0 | |
| Sept. 20, 2019, 3 p.m. | N/A | 3.1 ppb (3) | 12.4 ppb (11) | 11.0 ppb (10) | N/A | 1.0 ppb (1) | 35.0 ppb (27) | 0.2 ppb (2) | N/A | N/A | 27.0 | |
| Sept. 20, 2019, 2 p.m. | N/A | 4.3 ppb (4) | 15.2 ppb (14) | 12.0 ppb (11) | N/A | 0.0 ppb (0) | 29.0 ppb (22) | 0.1 ppb (1) | N/A | N/A | 22.0 | |
| Sept. 20, 2019, 1 p.m. | N/A | 11.9 ppb (11) | 30.8 ppb (29) | 20.0 ppb (19) | N/A | 1.0 ppb (1) | 18.0 ppb (14) | 0.2 ppb (2) | N/A | N/A | 29.0 | |
| Sept. 20, 2019, noon | N/A | 37.6 ppb (35) | 64.1 ppb (61) | 27.0 ppb (25) | N/A | 1.0 ppb (1) | 4.0 ppb (3) | 0.5 ppb (6) | N/A | N/A | 61.0 | |
| Sept. 20, 2019, 11 a.m. | N/A | 28.9 ppb (27) | 50.5 ppb (47) | 19.0 ppb (18) | N/A | 1.0 ppb (1) | 1.0 ppb (1) | 0.6 ppb (7) | N/A | N/A | 47.0 | |
| Sept. 20, 2019, 10 a.m. | N/A | 19.0 ppb (18) | 40.2 ppb (37) | 18.0 ppb (17) | N/A | 1.0 ppb (1) | 0.0 ppb (0) | 0.4 ppb (4) | N/A | N/A | 37.0 | |
| Sept. 20, 2019, 9 a.m. | N/A | 21.0 ppb (19) | 40.9 ppb (38) | 17.0 ppb (16) | N/A | N/A | 0.0 ppb (0) | 0.4 ppb (4) | N/A | N/A | 38.0 | |
| Sept. 20, 2019, 8 a.m. | N/A | 20.7 ppb (19) | 42.7 ppb (40) | 19.0 ppb (18) | N/A | 1.0 ppb (1) | 0.0 ppb (0) | 0.4 ppb (4) | N/A | N/A | 40.0 | |
| Sept. 20, 2019, 7 a.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 1.0 ppb (1) | 0.0 ppb (0) | 0.4 ppb (4) | N/A | N/A | 18.0 | |
| Sept. 20, 2019, 6 a.m. | N/A | N/A | N/A | 21.0 ppb (19) | N/A | 1.0 ppb (1) | 0.0 ppb (0) | 0.5 ppb (6) | N/A | N/A | 19.0 | |
| Sept. 20, 2019, 5 a.m. | N/A | 41.1 ppb (38) | 67.3 ppb (64) | 24.0 ppb (22) | N/A | 1.0 ppb (1) | 0.0 ppb (0) | 0.6 ppb (7) | N/A | N/A | 64.0 | |
| Sept. 20, 2019, 4 a.m. | N/A | 18.2 ppb (17) | 43.8 ppb (41) | 25.0 ppb (23) | N/A | 1.0 ppb (1) | 0.0 ppb (0) | 0.5 ppb (6) | N/A | N/A | 41.0 | |
| Sept. 20, 2019, 3 a.m. | N/A | 10.3 ppb (10) | 37.6 ppb (35) | 27.0 ppb (25) | N/A | 1.0 ppb (1) | 0.0 ppb (0) | 0.6 ppb (7) | N/A | N/A | 35.0 | |
| Sept. 20, 2019, 2 a.m. | N/A | 8.1 ppb (8) | 35.9 ppb (33) | 28.0 ppb (26) | N/A | 0.0 ppb (0) | 2.0 ppb (2) | 0.5 ppb (6) | N/A | N/A | 33.0 | |
| Sept. 20, 2019, 1 a.m. | N/A | 0.6 ppb (1) | 16.9 ppb (16) | 16.0 ppb (15) | N/A | 0.0 ppb (0) | 15.0 ppb (12) | 0.3 ppb (3) | N/A | N/A | 16.0 | |
| Sept. 20, 2019, midnight | N/A | 0.9 ppb (1) | 14.3 ppb (13) | 13.0 ppb (12) | N/A | 0.0 ppb (0) | 22.0 ppb (17) | 0.2 ppb (2) | N/A | N/A | 17.0 | |
| Sept. 19, 2019, 11 p.m. | N/A | 0.1 ppb (0) | 7.6 ppb (7) | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 33.0 ppb (25) | 0.2 ppb (2) | N/A | N/A | 25.0 | |
| Sept. 19, 2019, 10 p.m. | N/A | 0.1 ppb (0) | 2.5 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | 0.1 ppb (1) | N/A | N/A | 33.0 | |
| Sept. 19, 2019, 9 p.m. | N/A | 0.5 ppb (0) | 3.0 ppb (3) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | 0.1 ppb (1) | N/A | N/A | 33.0 | |
| Sept. 19, 2019, 8 p.m. | N/A | 0.6 ppb (1) | 3.2 ppb (3) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.1 ppb (1) | N/A | N/A | 34.0 | |
| Sept. 19, 2019, 7 p.m. | N/A | 0.3 ppb (0) | 2.3 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.1 ppb (1) | N/A | N/A | 34.0 | |
| Sept. 19, 2019, 6 p.m. | N/A | 0.2 ppb (0) | 1.9 ppb (2) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.1 ppb (1) | N/A | N/A | 34.0 | |
| Sept. 19, 2019, 5 p.m. | N/A | 0.2 ppb (0) | 2.4 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | 0.1 ppb (1) | N/A | N/A | 33.0 | |
| Sept. 19, 2019, 4 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | 0.1 ppb (1) | N/A | N/A | 30.0 | |
| Sept. 19, 2019, 3 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 37.0 ppb (28) | 0.1 ppb (1) | N/A | N/A | 28.0 | |
| Sept. 19, 2019, 2 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 34.0 ppb (26) | 0.1 ppb (1) | N/A | N/A | 26.0 | |
| Sept. 19, 2019, 1 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 30.0 ppb (23) | 0.1 ppb (1) | N/A | N/A | 23.0 | |
| Sept. 19, 2019, noon | N/A | 2.6 ppb (2) | 10.8 ppb (10) | 9.0 ppb (8) | N/A | 0.0 ppb (0) | 19.0 ppb (15) | 0.1 ppb (1) | N/A | N/A | 15.0 | |
| Sept. 19, 2019, 11 a.m. | N/A | 3.1 ppb (3) | 19.2 ppb (18) | 17.0 ppb (16) | N/A | 0.0 ppb (0) | 9.0 ppb (7) | 0.2 ppb (2) | N/A | N/A | 18.0 | |
| Sept. 19, 2019, 10 a.m. | N/A | 0.4 ppb (0) | 14.9 ppb (14) | 15.0 ppb (14) | N/A | 0.0 ppb (0) | 8.0 ppb (6) | 0.2 ppb (2) | N/A | N/A | 14.0 | |
| Sept. 19, 2019, 9 a.m. | N/A | 0.5 ppb (0) | 9.0 ppb (8) | 9.0 ppb (8) | N/A | 0.0 ppb (0) | 15.0 ppb (12) | 0.2 ppb (2) | N/A | N/A | 12.0 | |
| Sept. 19, 2019, 8 a.m. | N/A | 0.1 ppb (0) | 8.6 ppb (8) | 9.0 ppb (8) | N/A | 0.0 ppb (0) | 17.0 ppb (13) | 0.1 ppb (1) | N/A | N/A | 13.0 | |
| Sept. 19, 2019, 7 a.m. | N/A | 0.0 ppb (0) | 6.3 ppb (6) | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 22.0 ppb (17) | 0.1 ppb (1) | N/A | N/A | 17.0 | |
| Sept. 19, 2019, 6 a.m. | N/A | 0.0 ppb (0) | 3.2 ppb (3) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 30.0 ppb (23) | 0.1 ppb (1) | N/A | N/A | 23.0 | |
| Sept. 19, 2019, 5 a.m. | N/A | 0.0 ppb (0) | 1.6 ppb (1) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 34.0 ppb (26) | 0.1 ppb (1) | N/A | N/A | 26.0 | |
| Sept. 19, 2019, 4 a.m. | N/A | 0.0 ppb (0) | 1.9 ppb (2) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 34.0 ppb (26) | 0.1 ppb (1) | N/A | N/A | 26.0 | |
| Sept. 19, 2019, 3 a.m. | N/A | 0.0 ppb (0) | 1.8 ppb (2) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 34.0 ppb (26) | 0.1 ppb (1) | N/A | N/A | 26.0 | |
| Sept. 19, 2019, 2 a.m. | N/A | 0.0 ppb (0) | 2.1 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 33.0 ppb (25) | 0.1 ppb (1) | N/A | N/A | 25.0 | |
| Sept. 19, 2019, 1 a.m. | N/A | 0.0 ppb (0) | 4.8 ppb (4) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.1 ppb (1) | N/A | N/A | 27.0 | |
| Sept. 19, 2019, midnight | N/A | 0.0 ppb (0) | 8.1 ppb (8) | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | 0.2 ppb (2) | N/A | N/A | 31.0 | |
| Sept. 18, 2019, 11 p.m. | N/A | 0.0 ppb (0) | 5.8 ppb (5) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.2 ppb (2) | N/A | N/A | 37.0 | |
| Sept. 18, 2019, 10 p.m. | N/A | 0.1 ppb (0) | 4.8 ppb (4) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.1 ppb (1) | N/A | N/A | 40.0 | |
| Sept. 18, 2019, 9 p.m. | N/A | 0.1 ppb (0) | 3.6 ppb (3) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.1 ppb (1) | N/A | N/A | 41.0 | |
| Sept. 18, 2019, 8 p.m. | N/A | 0.4 ppb (0) | 4.3 ppb (4) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.1 ppb (1) | N/A | N/A | 40.0 | |
| Sept. 18, 2019, 7 p.m. | N/A | 0.2 ppb (0) | 3.4 ppb (3) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.1 ppb (1) | N/A | N/A | 40.0 | |
| Sept. 18, 2019, 6 p.m. | N/A | 0.1 ppb (0) | 3.7 ppb (3) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 54.0 ppb (42) | 0.1 ppb (1) | N/A | N/A | 42.0 | |
| Sept. 18, 2019, 5 p.m. | N/A | 0.3 ppb (0) | 3.8 ppb (4) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.1 ppb (1) | N/A | N/A | 40.0 | |
| Sept. 18, 2019, 4 p.m. | N/A | 0.3 ppb (0) | 4.1 ppb (4) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 49.0 ppb (38) | 0.1 ppb (1) | N/A | N/A | 38.0 | |
| Sept. 18, 2019, 3 p.m. | N/A | 0.4 ppb (0) | 3.7 ppb (3) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.1 ppb (1) | N/A | N/A | 34.0 | |
| Sept. 18, 2019, 2 p.m. | N/A | 0.8 ppb (1) | 4.7 ppb (4) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 37.0 ppb (28) | 0.1 ppb (1) | N/A | N/A | 28.0 | |
| Sept. 18, 2019, 1 p.m. | N/A | 2.2 ppb (2) | 9.4 ppb (9) | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 28.0 ppb (22) | 0.1 ppb (1) | N/A | N/A | 22.0 | |
| Sept. 18, 2019, noon | N/A | 3.6 ppb (3) | 13.6 ppb (13) | 11.0 ppb (10) | N/A | 0.0 ppb (0) | 18.0 ppb (14) | 0.2 ppb (2) | N/A | N/A | 14.0 | |
| Sept. 18, 2019, 11 a.m. | N/A | 2.6 ppb (2) | 16.5 ppb (15) | 15.0 ppb (14) | N/A | 0.0 ppb (0) | 10.0 ppb (8) | 0.2 ppb (2) | N/A | N/A | 15.0 | |
| Sept. 18, 2019, 10 a.m. | N/A | 0.4 ppb (0) | 13.2 ppb (12) | 13.0 ppb (12) | N/A | 0.0 ppb (0) | 9.0 ppb (7) | 0.2 ppb (2) | N/A | N/A | 12.0 | |
| Sept. 18, 2019, 9 a.m. | N/A | 0.3 ppb (0) | 11.3 ppb (10) | 12.0 ppb (11) | N/A | N/A | 11.0 ppb (8) | 0.1 ppb (1) | N/A | N/A | 11.0 | |
| Sept. 18, 2019, 8 a.m. | N/A | 0.1 ppb (0) | 10.6 ppb (10) | 11.0 ppb (10) | N/A | 0.0 ppb (0) | 10.0 ppb (8) | 0.1 ppb (1) | N/A | N/A | 10.0 | |
| Sept. 18, 2019, 7 a.m. | N/A | N/A | N/A | 10.0 ppb (9) | N/A | 0.0 ppb (0) | 14.0 ppb (11) | 0.1 ppb (1) | N/A | N/A | 11.0 | |
| Sept. 18, 2019, 6 a.m. | N/A | N/A | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | 12.0 ppb (9) | 0.2 ppb (2) | N/A | N/A | 11.0 | |
| Sept. 18, 2019, 5 a.m. | N/A | 0.2 ppb (0) | 15.1 ppb (14) | 15.0 ppb (14) | N/A | 0.0 ppb (0) | 11.0 ppb (8) | 0.2 ppb (2) | N/A | N/A | 14.0 | |
| Sept. 18, 2019, 4 a.m. | N/A | 0.0 ppb (0) | 12.2 ppb (11) | 12.0 ppb (11) | N/A | 0.0 ppb (0) | 16.0 ppb (12) | 0.2 ppb (2) | N/A | N/A | 12.0 | |
| Sept. 18, 2019, 3 a.m. | N/A | 0.0 ppb (0) | 8.2 ppb (8) | 9.0 ppb (8) | N/A | 0.0 ppb (0) | 23.0 ppb (18) | 0.2 ppb (2) | N/A | N/A | 18.0 | |
| Sept. 18, 2019, 2 a.m. | N/A | 0.0 ppb (0) | 6.0 ppb (6) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 33.0 ppb (25) | 0.2 ppb (2) | N/A | N/A | 25.0 | |
| Sept. 18, 2019, 1 a.m. | N/A | 0.0 ppb (0) | 11.9 ppb (11) | 12.0 ppb (11) | N/A | 0.0 ppb (0) | 33.0 ppb (25) | 0.2 ppb (2) | N/A | N/A | 25.0 | |
| Sept. 18, 2019, midnight | N/A | 0.0 ppb (0) | 11.2 ppb (10) | 11.0 ppb (10) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.3 ppb (3) | N/A | N/A | 34.0 | |
| Sept. 17, 2019, 11 p.m. | N/A | 0.0 ppb (0) | 9.2 ppb (9) | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 55.0 ppb (42) | 0.2 ppb (2) | N/A | N/A | 42.0 | |
| Sept. 17, 2019, 10 p.m. | N/A | 0.0 ppb (0) | 6.5 ppb (6) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 65.0 ppb (50) | 0.2 ppb (2) | N/A | N/A | 50.0 | |
| Sept. 17, 2019, 9 p.m. | N/A | 0.1 ppb (0) | 6.6 ppb (6) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 69.0 ppb (53) | 0.2 ppb (2) | N/A | N/A | 53.0 | |
| Sept. 17, 2019, 8 p.m. | N/A | 0.2 ppb (0) | 5.8 ppb (5) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 67.0 ppb (52) | 0.1 ppb (1) | N/A | N/A | 52.0 | |
| Sept. 17, 2019, 7 p.m. | N/A | 0.3 ppb (0) | 5.5 ppb (5) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 62.0 ppb (48) | 0.1 ppb (1) | N/A | N/A | 48.0 | |
| Sept. 17, 2019, 6 p.m. | N/A | 0.1 ppb (0) | 4.8 ppb (4) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 57.0 ppb (44) | 0.1 ppb (1) | N/A | N/A | 44.0 | |
| Sept. 17, 2019, 5 p.m. | N/A | 0.3 ppb (0) | 4.3 ppb (4) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 49.0 ppb (38) | 0.1 ppb (1) | N/A | N/A | 38.0 | |
| Sept. 17, 2019, 4 p.m. | N/A | 0.3 ppb (0) | 3.6 ppb (3) | 2.0 ppb (2) | N/A | N/A | 43.0 ppb (33) | 0.1 ppb (1) | N/A | N/A | 33.0 | |
| Sept. 17, 2019, 3 p.m. | N/A | 0.4 ppb (0) | 3.6 ppb (3) | 3.0 ppb (3) | N/A | N/A | 36.0 ppb (28) | 0.1 ppb (1) | N/A | N/A | 28.0 | |
| Sept. 17, 2019, 2 p.m. | N/A | 0.5 ppb (0) | 3.6 ppb (3) | 3.0 ppb (3) | N/A | N/A | 34.0 ppb (26) | 0.1 ppb (1) | N/A | N/A | 26.0 | |
| Sept. 17, 2019, 1 p.m. | N/A | 0.5 ppb (0) | 4.5 ppb (4) | 4.0 ppb (4) | N/A | N/A | 31.0 ppb (24) | 0.1 ppb (1) | N/A | N/A | 24.0 | |
| Sept. 17, 2019, noon | N/A | 1.1 ppb (1) | 9.4 ppb (9) | 8.0 ppb (7) | N/A | 1.0 ppb (1) | 24.0 ppb (18) | 0.2 ppb (2) | N/A | N/A | 18.0 | |
| Sept. 17, 2019, 11 a.m. | N/A | 0.3 ppb (0) | 9.0 ppb (8) | 8.0 ppb (7) | N/A | 1.0 ppb (1) | 24.0 ppb (18) | 0.2 ppb (2) | N/A | N/A | 18.0 | |
| Sept. 17, 2019, 10 a.m. | N/A | 0.1 ppb (0) | 8.2 ppb (8) | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 28.0 ppb (22) | 0.2 ppb (2) | N/A | N/A | 22.0 | |
| Sept. 17, 2019, 9 a.m. | N/A | 0.1 ppb (0) | 7.2 ppb (7) | N/A | N/A | 1.0 ppb (1) | 28.0 ppb (22) | 0.2 ppb (2) | N/A | N/A | 22.0 | |
| Sept. 17, 2019, 8 a.m. | N/A | 0.0 ppb (0) | 6.9 ppb (6) | 6.0 ppb (6) | N/A | N/A | 25.0 ppb (19) | 0.2 ppb (2) | N/A | N/A | 19.0 | |
| Sept. 17, 2019, 7 a.m. | N/A | 0.0 ppb (0) | 6.6 ppb (6) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 26.0 ppb (20) | N/A | N/A | N/A | 20.0 | |
| Sept. 17, 2019, 6 a.m. | N/A | 0.0 ppb (0) | 6.2 ppb (6) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 35.0 ppb (27) | 0.2 ppb (2) | N/A | N/A | 27.0 | |
| Sept. 17, 2019, 5 a.m. | N/A | 0.0 ppb (0) | 6.7 ppb (6) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 39.0 ppb (30) | 0.2 ppb (2) | N/A | N/A | 30.0 | |
| Sept. 17, 2019, 4 a.m. | N/A | 0.0 ppb (0) | 10.4 ppb (10) | 9.0 ppb (8) | N/A | 1.0 ppb (1) | 34.0 ppb (26) | 0.2 ppb (2) | N/A | N/A | 26.0 | |
| Sept. 17, 2019, 3 a.m. | N/A | 0.0 ppb (0) | 11.6 ppb (11) | 10.0 ppb (9) | N/A | 1.0 ppb (1) | 36.0 ppb (28) | 0.2 ppb (2) | N/A | N/A | 28.0 | |
| Sept. 17, 2019, 2 a.m. | N/A | 0.0 ppb (0) | 7.9 ppb (7) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 45.0 ppb (35) | 0.2 ppb (2) | N/A | N/A | 35.0 | |
| Sept. 17, 2019, 1 a.m. | N/A | 0.0 ppb (0) | 8.0 ppb (7) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 49.0 ppb (38) | 0.2 ppb (2) | N/A | N/A | 38.0 | |
| Sept. 17, 2019, midnight | N/A | 0.0 ppb (0) | 8.3 ppb (8) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 62.0 ppb (48) | 0.2 ppb (2) | N/A | N/A | 48.0 | |
| Sept. 16, 2019, 11 p.m. | N/A | 0.0 ppb (0) | 8.5 ppb (8) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 78.0 ppb (61) | 0.2 ppb (2) | N/A | N/A | 61.0 | |
| Sept. 16, 2019, 10 p.m. | N/A | 0.0 ppb (0) | 7.8 ppb (7) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 80.0 ppb (62) | 0.2 ppb (2) | N/A | N/A | 62.0 | |
| Sept. 16, 2019, 9 p.m. | N/A | 0.0 ppb (0) | 6.3 ppb (6) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 79.0 ppb (62) | 0.2 ppb (2) | N/A | N/A | 62.0 | |
| Sept. 16, 2019, 8 p.m. | N/A | 0.4 ppb (0) | 6.8 ppb (6) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 78.0 ppb (61) | 0.2 ppb (2) | N/A | N/A | 61.0 | |
| Sept. 16, 2019, 7 p.m. | N/A | 0.2 ppb (0) | 7.4 ppb (7) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 85.0 ppb (67) | 0.2 ppb (2) | N/A | N/A | 67.0 | |
| Sept. 16, 2019, 6 p.m. | N/A | 0.1 ppb (0) | 8.6 ppb (8) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 87.0 ppb (68) | 0.2 ppb (2) | N/A | N/A | 68.0 | |
| Sept. 16, 2019, 5 p.m. | N/A | 1.3 ppb (1) | 14.2 ppb (13) | 10.0 ppb (9) | N/A | 2.0 ppb (3) | 69.0 ppb (53) | N/A | N/A | N/A | 53.0 | |
| Sept. 16, 2019, 4 p.m. | N/A | 3.0 ppb (3) | 21.0 ppb (19) | 18.0 ppb (17) | N/A | 2.0 ppb (3) | 46.0 ppb (35) | 0.3 ppb (3) | N/A | N/A | 35.0 | |
| Sept. 16, 2019, 3 p.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 2.0 ppb (3) | 37.0 ppb (28) | 0.3 ppb (3) | N/A | N/A | 28.0 | |
| Sept. 16, 2019, 2 p.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 2.0 ppb (3) | 32.0 ppb (25) | 0.3 ppb (3) | N/A | N/A | 25.0 | |
| Sept. 16, 2019, 1 p.m. | N/A | 5.9 ppb (5) | 23.0 ppb (21) | 18.0 ppb (17) | N/A | 2.0 ppb (3) | 26.0 ppb (20) | 0.3 ppb (3) | N/A | N/A | 21.0 | |
| Sept. 16, 2019, noon | N/A | 17.1 ppb (16) | 35.7 ppb (33) | 20.0 ppb (19) | N/A | 1.0 ppb (1) | 9.0 ppb (7) | 0.5 ppb (6) | N/A | N/A | 33.0 | |
| Sept. 16, 2019, 11 a.m. | N/A | 22.6 ppb (21) | 40.5 ppb (38) | 17.0 ppb (16) | N/A | 1.0 ppb (1) | 1.0 ppb (1) | 0.5 ppb (6) | N/A | N/A | 38.0 | |
| Sept. 16, 2019, 10 a.m. | N/A | 22.1 ppb (20) | 42.3 ppb (39) | 18.0 ppb (17) | N/A | 1.0 ppb (1) | 0.0 ppb (0) | 0.5 ppb (6) | N/A | N/A | 39.0 | |
| Sept. 16, 2019, 9 a.m. | N/A | 18.6 ppb (17) | 40.8 ppb (38) | 20.0 ppb (19) | N/A | N/A | 0.0 ppb (0) | 0.4 ppb (4) | N/A | N/A | 38.0 | |
| Sept. 16, 2019, 8 a.m. | N/A | 11.9 ppb (11) | 33.8 ppb (31) | 20.0 ppb (19) | N/A | 1.0 ppb (1) | 0.0 ppb (0) | 0.4 ppb (4) | N/A | N/A | 31.0 | |
| Sept. 16, 2019, 7 a.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 1.0 ppb (1) | 0.0 ppb (0) | 0.4 ppb (4) | N/A | N/A | 19.0 | |
| Sept. 16, 2019, 6 a.m. | N/A | N/A | N/A | 23.0 ppb (21) | N/A | 1.0 ppb (1) | 0.0 ppb (0) | 0.4 ppb (4) | N/A | N/A | 21.0 | |
| Sept. 16, 2019, 5 a.m. | N/A | 2.1 ppb (2) | 28.5 ppb (26) | 26.0 ppb (24) | N/A | 1.0 ppb (1) | 1.0 ppb (1) | 0.4 ppb (4) | N/A | N/A | 26.0 | |
| Sept. 16, 2019, 4 a.m. | N/A | 2.3 ppb (2) | 28.1 ppb (26) | 26.0 ppb (24) | N/A | 1.0 ppb (1) | 2.0 ppb (2) | 0.4 ppb (4) | N/A | N/A | 26.0 | |
| Sept. 16, 2019, 3 a.m. | N/A | 0.2 ppb (0) | 17.8 ppb (16) | 17.0 ppb (16) | N/A | 1.0 ppb (1) | 11.0 ppb (8) | 0.3 ppb (3) | N/A | N/A | 16.0 | |
| Sept. 16, 2019, 2 a.m. | N/A | 0.0 ppb (0) | 15.9 ppb (15) | 16.0 ppb (15) | N/A | 1.0 ppb (1) | 17.0 ppb (13) | 0.3 ppb (3) | N/A | N/A | 15.0 | |
| Sept. 16, 2019, 1 a.m. | N/A | 0.0 ppb (0) | 12.8 ppb (12) | 14.0 ppb (13) | N/A | 1.0 ppb (1) | 26.0 ppb (20) | 0.3 ppb (3) | N/A | N/A | 20.0 | |
| Sept. 16, 2019, midnight | N/A | 0.0 ppb (0) | 11.2 ppb (10) | 12.0 ppb (11) | N/A | 1.0 ppb (1) | 32.0 ppb (25) | 0.2 ppb (2) | N/A | N/A | 25.0 | |
| Sept. 15, 2019, 11 p.m. | N/A | 0.1 ppb (0) | 7.3 ppb (7) | 9.0 ppb (8) | N/A | 1.0 ppb (1) | 40.0 ppb (31) | 0.2 ppb (2) | N/A | N/A | 31.0 | |
| Sept. 15, 2019, 10 p.m. | N/A | 0.1 ppb (0) | 3.0 ppb (3) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 50.0 ppb (38) | 0.1 ppb (1) | N/A | N/A | 38.0 | |
| Sept. 15, 2019, 9 p.m. | N/A | 0.1 ppb (0) | 2.2 ppb (2) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 53.0 ppb (41) | 0.1 ppb (1) | N/A | N/A | 41.0 | |
| Sept. 15, 2019, 8 p.m. | N/A | 0.1 ppb (0) | 1.9 ppb (2) | 1.0 ppb (1) | N/A | 1.0 ppb (1) | 54.0 ppb (42) | 0.1 ppb (1) | N/A | N/A | 42.0 | |
| Sept. 15, 2019, 7 p.m. | N/A | 0.1 ppb (0) | 1.8 ppb (2) | 1.0 ppb (1) | N/A | 1.0 ppb (1) | 55.0 ppb (42) | 0.1 ppb (1) | N/A | N/A | 42.0 | |
| Sept. 15, 2019, 6 p.m. | N/A | 0.1 ppb (0) | 2.0 ppb (2) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 52.0 ppb (40) | 0.1 ppb (1) | N/A | N/A | 40.0 | |
| Sept. 15, 2019, 5 p.m. | N/A | 0.3 ppb (0) | 2.3 ppb (2) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 50.0 ppb (38) | 0.1 ppb (1) | N/A | N/A | 38.0 | |
| Sept. 15, 2019, 4 p.m. | N/A | 0.3 ppb (0) | 2.1 ppb (2) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 46.0 ppb (35) | 0.1 ppb (1) | N/A | N/A | 35.0 | |
| Sept. 15, 2019, 3 p.m. | N/A | 0.2 ppb (0) | 2.1 ppb (2) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 39.0 ppb (30) | 0.1 ppb (1) | N/A | N/A | 30.0 | |
| Sept. 15, 2019, 2 p.m. | N/A | 0.3 ppb (0) | 2.5 ppb (2) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 32.0 ppb (25) | 0.1 ppb (1) | N/A | N/A | 25.0 | |
| Sept. 15, 2019, 1 p.m. | N/A | 0.5 ppb (0) | 3.0 ppb (3) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 25.0 ppb (19) | 0.1 ppb (1) | N/A | N/A | 19.0 | |
| Sept. 15, 2019, noon | N/A | 0.6 ppb (1) | 4.0 ppb (4) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 19.0 ppb (15) | 0.1 ppb (1) | N/A | N/A | 15.0 | |
| Sept. 15, 2019, 11 a.m. | N/A | 0.8 ppb (1) | 7.7 ppb (7) | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 9.0 ppb (7) | 0.2 ppb (2) | N/A | N/A | 7.0 | |
| Sept. 15, 2019, 10 a.m. | N/A | 0.4 ppb (0) | 9.7 ppb (9) | 9.0 ppb (8) | N/A | 1.0 ppb (1) | 7.0 ppb (5) | 0.4 ppb (4) | N/A | N/A | 9.0 | |
| Sept. 15, 2019, 9 a.m. | N/A | 0.0 ppb (0) | 6.6 ppb (6) | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 13.0 ppb (10) | 0.2 ppb (2) | N/A | N/A | 10.0 | |
| Sept. 15, 2019, 8 a.m. | N/A | 0.0 ppb (0) | 5.1 ppb (5) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 20.0 ppb (15) | 0.1 ppb (1) | N/A | N/A | 15.0 | |
| Sept. 15, 2019, 7 a.m. | N/A | 0.0 ppb (0) | 5.3 ppb (5) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 21.0 ppb (16) | 0.1 ppb (1) | N/A | N/A | 16.0 | |
| Sept. 15, 2019, 6 a.m. | N/A | 0.0 ppb (0) | 5.0 ppb (5) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 21.0 ppb (16) | 0.1 ppb (1) | N/A | N/A | 16.0 | |
| Sept. 15, 2019, 5 a.m. | N/A | 0.0 ppb (0) | 4.9 ppb (5) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 23.0 ppb (18) | 0.1 ppb (1) | N/A | N/A | 18.0 | |
| Sept. 15, 2019, 4 a.m. | N/A | 0.1 ppb (0) | 5.9 ppb (5) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 23.0 ppb (18) | 0.1 ppb (1) | N/A | N/A | 18.0 | |
| Sept. 15, 2019, 3 a.m. | N/A | 0.0 ppb (0) | 5.6 ppb (5) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 25.0 ppb (19) | 0.1 ppb (1) | N/A | N/A | 19.0 | |
| Sept. 15, 2019, 2 a.m. | N/A | 0.3 ppb (0) | 4.1 ppb (4) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 28.0 ppb (22) | 0.1 ppb (1) | N/A | N/A | 22.0 | |
| Sept. 15, 2019, 1 a.m. | N/A | 0.4 ppb (0) | 5.4 ppb (5) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 28.0 ppb (22) | 0.1 ppb (1) | N/A | N/A | 22.0 |