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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| May 21, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.1 ppb (1) | N/A | N/A | 27.0 | |
| May 21, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 33.0 ppb (25) | 0.1 ppb (1) | N/A | N/A | 25.0 | |
| May 21, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | 0.1 ppb (1) | N/A | N/A | 23.0 | |
| May 21, 2019, noon | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 30.0 ppb (23) | 0.1 ppb (1) | N/A | N/A | 23.0 | |
| May 21, 2019, 11 a.m. | N/A | 0.7 ppb (1) | 3.9 ppb (4) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 33.0 ppb (25) | 0.1 ppb (1) | N/A | N/A | 25.0 | |
| May 21, 2019, 10 a.m. | N/A | 0.3 ppb (0) | 5.3 ppb (5) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 31.0 ppb (24) | 0.1 ppb (1) | N/A | N/A | 24.0 | |
| May 21, 2019, 9 a.m. | N/A | 0.1 ppb (0) | 4.7 ppb (4) | N/A | N/A | 0.0 ppb (0) | 29.0 ppb (22) | 0.1 ppb (1) | N/A | N/A | 22.0 | |
| May 21, 2019, 8 a.m. | N/A | 0.0 ppb (0) | 4.0 ppb (4) | 4.0 ppb (4) | N/A | N/A | 29.0 ppb (22) | 0.1 ppb (1) | N/A | N/A | 22.0 | |
| May 21, 2019, 7 a.m. | N/A | 0.0 ppb (0) | 2.7 ppb (3) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 32.0 ppb (25) | N/A | N/A | N/A | 25.0 | |
| May 21, 2019, 6 a.m. | N/A | 0.0 ppb (0) | 2.1 ppb (2) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 38.0 ppb (29) | 0.1 ppb (1) | N/A | N/A | 29.0 | |
| May 21, 2019, 5 a.m. | N/A | 0.1 ppb (0) | 2.6 ppb (2) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 40.0 ppb (31) | 0.1 ppb (1) | N/A | N/A | 31.0 | |
| May 21, 2019, 4 a.m. | N/A | 0.0 ppb (0) | 2.1 ppb (2) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 43.0 ppb (33) | 0.1 ppb (1) | N/A | N/A | 33.0 | |
| May 21, 2019, 3 a.m. | N/A | 0.0 ppb (0) | 2.8 ppb (3) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 45.0 ppb (35) | 0.1 ppb (1) | N/A | N/A | 35.0 | |
| May 21, 2019, 2 a.m. | N/A | 0.0 ppb (0) | 3.2 ppb (3) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 46.0 ppb (35) | 0.1 ppb (1) | N/A | N/A | 35.0 | |
| May 21, 2019, 1 a.m. | N/A | 0.1 ppb (0) | 3.1 ppb (3) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 49.0 ppb (38) | 0.1 ppb (1) | N/A | N/A | 38.0 | |
| May 21, 2019, midnight | N/A | 0.0 ppb (0) | 4.2 ppb (4) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 50.0 ppb (38) | 0.1 ppb (1) | N/A | N/A | 38.0 | |
| May 20, 2019, 11 p.m. | N/A | 0.5 ppb (0) | 7.6 ppb (7) | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 46.0 ppb (35) | 0.2 ppb (2) | N/A | N/A | 35.0 | |
| May 20, 2019, 10 p.m. | N/A | 0.8 ppb (1) | 8.2 ppb (8) | 8.0 ppb (7) | N/A | 1.0 ppb (1) | 42.0 ppb (32) | 0.2 ppb (2) | N/A | N/A | 32.0 | |
| May 20, 2019, 9 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 50.0 ppb (38) | 0.1 ppb (1) | N/A | N/A | 38.0 | |
| May 20, 2019, 8 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 52.0 ppb (40) | 0.1 ppb (1) | N/A | N/A | 40.0 | |
| May 20, 2019, 7 p.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 53.0 ppb (41) | 0.1 ppb (1) | N/A | N/A | 41.0 | |
| May 20, 2019, 6 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 56.0 ppb (43) | 0.1 ppb (1) | N/A | N/A | 43.0 | |
| May 20, 2019, 5 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 57.0 ppb (44) | 0.2 ppb (2) | N/A | N/A | 44.0 | |
| May 20, 2019, 4 p.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 61.0 ppb (47) | 0.2 ppb (2) | N/A | N/A | 47.0 | |
| May 20, 2019, 3 p.m. | N/A | N/A | N/A | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 61.0 ppb (47) | 0.2 ppb (2) | N/A | N/A | 47.0 | |
| May 20, 2019, 2 p.m. | N/A | N/A | N/A | 9.0 ppb (8) | N/A | 1.0 ppb (1) | 52.0 ppb (40) | 0.2 ppb (2) | N/A | N/A | 40.0 | |
| May 20, 2019, 1 p.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 1.0 ppb (1) | 41.0 ppb (32) | 0.2 ppb (2) | N/A | N/A | 32.0 | |
| May 20, 2019, noon | N/A | 1.5 ppb (1) | 9.3 ppb (9) | 9.0 ppb (8) | N/A | 1.0 ppb (1) | 36.0 ppb (28) | 0.2 ppb (2) | N/A | N/A | 28.0 | |
| May 20, 2019, 11 a.m. | N/A | 1.5 ppb (1) | 11.9 ppb (11) | 12.0 ppb (11) | N/A | 1.0 ppb (1) | 29.0 ppb (22) | 0.2 ppb (2) | N/A | N/A | 22.0 | |
| May 20, 2019, 10 a.m. | N/A | 0.3 ppb (0) | 8.9 ppb (8) | 9.0 ppb (8) | N/A | 1.0 ppb (1) | 30.0 ppb (23) | 0.2 ppb (2) | N/A | N/A | 23.0 | |
| May 20, 2019, 9 a.m. | N/A | 0.6 ppb (1) | 9.1 ppb (8) | 10.0 ppb (9) | N/A | N/A | 34.0 ppb (26) | 0.1 ppb (1) | N/A | N/A | 26.0 | |
| May 20, 2019, 8 a.m. | N/A | 0.1 ppb (0) | 6.0 ppb (6) | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 37.0 ppb (28) | 0.1 ppb (1) | N/A | N/A | 28.0 | |
| May 20, 2019, 7 a.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 40.0 ppb (31) | 0.1 ppb (1) | N/A | N/A | 31.0 | |
| May 20, 2019, 6 a.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 | |
| May 20, 2019, 5 a.m. | N/A | 0.0 ppb (0) | 4.4 ppb (4) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 36.0 ppb (28) | 0.1 ppb (1) | N/A | N/A | 28.0 | |
| May 20, 2019, 4 a.m. | N/A | 0.0 ppb (0) | 5.3 ppb (5) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 34.0 ppb (26) | 0.1 ppb (1) | N/A | N/A | 26.0 | |
| May 20, 2019, 3 a.m. | N/A | 0.0 ppb (0) | 4.9 ppb (5) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 39.0 ppb (30) | 0.1 ppb (1) | N/A | N/A | 30.0 | |
| May 20, 2019, 2 a.m. | N/A | 0.0 ppb (0) | 4.3 ppb (4) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | 0.1 ppb (1) | N/A | N/A | 33.0 | |
| May 20, 2019, 1 a.m. | N/A | 0.2 ppb (0) | 5.7 ppb (5) | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 45.0 ppb (35) | 0.1 ppb (1) | N/A | N/A | 35.0 | |
| May 20, 2019, midnight | N/A | 0.2 ppb (0) | 3.9 ppb (4) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 49.0 ppb (38) | 0.1 ppb (1) | N/A | N/A | 38.0 | |
| May 19, 2019, 11 p.m. | N/A | 0.2 ppb (0) | 3.1 ppb (3) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 56.0 ppb (43) | 0.2 ppb (2) | N/A | N/A | 43.0 | |
| May 19, 2019, 10 p.m. | N/A | 0.3 ppb (0) | 4.2 ppb (4) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 60.0 ppb (46) | 0.2 ppb (2) | N/A | N/A | 46.0 | |
| May 19, 2019, 9 p.m. | N/A | 0.3 ppb (0) | 3.7 ppb (3) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 58.0 ppb (45) | 0.2 ppb (2) | N/A | N/A | 45.0 | |
| May 19, 2019, 8 p.m. | N/A | 0.2 ppb (0) | 3.2 ppb (3) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 58.0 ppb (45) | 0.2 ppb (2) | N/A | N/A | 45.0 | |
| May 19, 2019, 7 p.m. | N/A | 0.2 ppb (0) | 3.3 ppb (3) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 55.0 ppb (42) | 0.2 ppb (2) | N/A | N/A | 42.0 | |
| May 19, 2019, 6 p.m. | N/A | 0.3 ppb (0) | 3.6 ppb (3) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 53.0 ppb (41) | 0.2 ppb (2) | N/A | N/A | 41.0 | |
| May 19, 2019, 5 p.m. | N/A | 0.2 ppb (0) | 3.1 ppb (3) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.2 ppb (2) | N/A | N/A | 40.0 | |
| May 19, 2019, 4 p.m. | N/A | 0.2 ppb (0) | 3.0 ppb (3) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.2 ppb (2) | N/A | N/A | 40.0 | |
| May 19, 2019, 3 p.m. | N/A | 0.4 ppb (0) | 3.9 ppb (4) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 54.0 ppb (42) | 0.2 ppb (2) | N/A | N/A | 42.0 | |
| May 19, 2019, 2 p.m. | N/A | 0.2 ppb (0) | 2.5 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.2 ppb (2) | N/A | N/A | 38.0 | |
| May 19, 2019, 1 p.m. | N/A | 0.3 ppb (0) | 2.7 ppb (3) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 49.0 ppb (38) | 0.1 ppb (1) | N/A | N/A | 38.0 | |
| May 19, 2019, noon | N/A | 0.3 ppb (0) | 2.8 ppb (3) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | 0.1 ppb (1) | N/A | N/A | 32.0 | |
| May 19, 2019, 11 a.m. | N/A | 0.9 ppb (1) | 6.8 ppb (6) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 27.0 ppb (21) | 0.2 ppb (2) | N/A | N/A | 21.0 | |
| May 19, 2019, 10 a.m. | N/A | 0.2 ppb (0) | 4.8 ppb (4) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 25.0 ppb (19) | 0.1 ppb (1) | N/A | N/A | 19.0 | |
| May 19, 2019, 9 a.m. | N/A | 0.0 ppb (0) | 2.6 ppb (2) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 33.0 ppb (25) | 0.1 ppb (1) | N/A | N/A | 25.0 | |
| May 19, 2019, 8 a.m. | N/A | 0.0 ppb (0) | 2.6 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | 0.1 ppb (1) | N/A | N/A | 31.0 | |
| May 19, 2019, 7 a.m. | N/A | 0.0 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 | |
| May 19, 2019, 6 a.m. | N/A | 0.0 ppb (0) | 2.4 ppb (2) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | 0.1 ppb (1) | N/A | N/A | 32.0 | |
| May 19, 2019, 5 a.m. | N/A | 0.0 ppb (0) | 3.0 ppb (3) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | 0.1 ppb (1) | N/A | N/A | 32.0 | |
| May 19, 2019, 4 a.m. | N/A | 0.0 ppb (0) | 4.6 ppb (4) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.1 ppb (1) | N/A | N/A | 34.0 | |
| May 19, 2019, 3 a.m. | N/A | 0.1 ppb (0) | 3.7 ppb (3) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.2 ppb (2) | N/A | N/A | 38.0 | |
| May 19, 2019, 2 a.m. | N/A | 0.0 ppb (0) | 4.2 ppb (4) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 56.0 ppb (43) | 0.2 ppb (2) | N/A | N/A | 43.0 | |
| May 19, 2019, 1 a.m. | N/A | 0.1 ppb (0) | 6.3 ppb (6) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 53.0 ppb (41) | 0.2 ppb (2) | N/A | N/A | 41.0 | |
| May 19, 2019, midnight | N/A | 0.0 ppb (0) | 7.8 ppb (7) | 8.0 ppb (7) | N/A | 1.0 ppb (1) | 53.0 ppb (41) | 0.3 ppb (3) | N/A | N/A | 41.0 | |
| May 18, 2019, 11 p.m. | N/A | 0.1 ppb (0) | 5.4 ppb (5) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 60.0 ppb (46) | 0.2 ppb (2) | N/A | N/A | 46.0 | |
| May 18, 2019, 10 p.m. | N/A | 0.3 ppb (0) | 4.2 ppb (4) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 62.0 ppb (48) | 0.2 ppb (2) | N/A | N/A | 48.0 | |
| May 18, 2019, 9 p.m. | N/A | 0.2 ppb (0) | 4.2 ppb (4) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 62.0 ppb (48) | 0.2 ppb (2) | N/A | N/A | 48.0 | |
| May 18, 2019, 8 p.m. | N/A | 0.3 ppb (0) | 3.7 ppb (3) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 61.0 ppb (47) | 0.2 ppb (2) | N/A | N/A | 47.0 | |
| May 18, 2019, 7 p.m. | N/A | 0.2 ppb (0) | 3.9 ppb (4) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 62.0 ppb (48) | 0.2 ppb (2) | N/A | N/A | 48.0 | |
| May 18, 2019, 6 p.m. | N/A | 0.2 ppb (0) | 4.0 ppb (4) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 59.0 ppb (45) | 0.2 ppb (2) | N/A | N/A | 45.0 | |
| May 18, 2019, 5 p.m. | N/A | 0.2 ppb (0) | 3.7 ppb (3) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 56.0 ppb (43) | 0.1 ppb (1) | N/A | N/A | 43.0 | |
| May 18, 2019, 4 p.m. | N/A | 0.3 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 | |
| May 18, 2019, 3 p.m. | N/A | 0.3 ppb (0) | 3.5 ppb (3) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.1 ppb (1) | N/A | N/A | 37.0 | |
| May 18, 2019, 2 p.m. | N/A | 0.3 ppb (0) | 3.6 ppb (3) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.1 ppb (1) | N/A | N/A | 34.0 | |
| May 18, 2019, 1 p.m. | N/A | 0.7 ppb (1) | 4.7 ppb (4) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 37.0 ppb (28) | 0.2 ppb (2) | N/A | N/A | 28.0 | |
| May 18, 2019, noon | N/A | 0.6 ppb (1) | 5.3 ppb (5) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 32.0 ppb (25) | 0.2 ppb (2) | N/A | N/A | 25.0 | |
| May 18, 2019, 11 a.m. | N/A | 0.4 ppb (0) | 7.0 ppb (6) | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 28.0 ppb (22) | 0.2 ppb (2) | N/A | N/A | 22.0 | |
| May 18, 2019, 10 a.m. | N/A | 0.4 ppb (0) | 10.7 ppb (10) | 11.0 ppb (10) | N/A | 0.0 ppb (0) | 21.0 ppb (16) | 0.2 ppb (2) | N/A | N/A | 16.0 | |
| May 18, 2019, 9 a.m. | N/A | 0.0 ppb (0) | 9.2 ppb (9) | 10.0 ppb (9) | N/A | 0.0 ppb (0) | 21.0 ppb (16) | 0.2 ppb (2) | N/A | N/A | 16.0 | |
| May 18, 2019, 8 a.m. | N/A | 0.0 ppb (0) | 5.9 ppb (5) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 26.0 ppb (20) | 0.2 ppb (2) | N/A | N/A | 20.0 | |
| May 18, 2019, 7 a.m. | N/A | 0.0 ppb (0) | 5.3 ppb (5) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 30.0 ppb (23) | 0.2 ppb (2) | N/A | N/A | 23.0 | |
| May 18, 2019, 6 a.m. | N/A | 0.0 ppb (0) | 5.2 ppb (5) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.2 ppb (2) | N/A | N/A | 27.0 | |
| May 18, 2019, 5 a.m. | N/A | 0.0 ppb (0) | 7.1 ppb (7) | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.2 ppb (2) | N/A | N/A | 27.0 | |
| May 18, 2019, 4 a.m. | N/A | 0.1 ppb (0) | 7.6 ppb (7) | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 36.0 ppb (28) | 0.2 ppb (2) | N/A | N/A | 28.0 | |
| May 18, 2019, 3 a.m. | N/A | 0.2 ppb (0) | 10.2 ppb (9) | 11.0 ppb (10) | N/A | 0.0 ppb (0) | 32.0 ppb (25) | 0.2 ppb (2) | N/A | N/A | 25.0 | |
| May 18, 2019, 2 a.m. | N/A | 0.0 ppb (0) | 11.4 ppb (11) | 12.0 ppb (11) | N/A | 0.0 ppb (0) | 30.0 ppb (23) | 0.3 ppb (3) | N/A | N/A | 23.0 | |
| May 18, 2019, 1 a.m. | N/A | 0.2 ppb (0) | 6.8 ppb (6) | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | 0.2 ppb (2) | N/A | N/A | 32.0 | |
| May 18, 2019, midnight | N/A | 0.1 ppb (0) | 5.1 ppb (5) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 47.0 ppb (36) | 0.2 ppb (2) | N/A | N/A | 36.0 | |
| May 17, 2019, 11 p.m. | N/A | 0.2 ppb (0) | 3.8 ppb (4) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 53.0 ppb (41) | 0.1 ppb (1) | N/A | N/A | 41.0 | |
| May 17, 2019, 10 p.m. | N/A | 0.3 ppb (0) | 3.8 ppb (4) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 54.0 ppb (42) | 0.1 ppb (1) | N/A | N/A | 42.0 | |
| May 17, 2019, 9 p.m. | N/A | 0.3 ppb (0) | 4.8 ppb (4) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 62.0 ppb (48) | 0.1 ppb (1) | N/A | N/A | 48.0 | |
| May 17, 2019, 8 p.m. | N/A | 0.9 ppb (1) | 8.3 ppb (8) | 8.0 ppb (7) | N/A | 1.0 ppb (1) | 69.0 ppb (53) | 0.2 ppb (2) | N/A | N/A | 53.0 | |
| May 17, 2019, 7 p.m. | N/A | 0.8 ppb (1) | 7.6 ppb (7) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 62.0 ppb (48) | 0.2 ppb (2) | N/A | N/A | 48.0 | |
| May 17, 2019, 6 p.m. | N/A | 1.1 ppb (1) | 9.3 ppb (9) | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 60.0 ppb (46) | 0.2 ppb (2) | N/A | N/A | 46.0 | |
| May 17, 2019, 5 p.m. | N/A | 2.8 ppb (3) | 14.9 ppb (14) | 12.0 ppb (11) | N/A | 1.0 ppb (1) | 48.0 ppb (37) | 0.2 ppb (2) | N/A | N/A | 37.0 | |
| May 17, 2019, 4 p.m. | N/A | 5.3 ppb (5) | 21.1 ppb (20) | 17.0 ppb (16) | N/A | 1.0 ppb (1) | 35.0 ppb (27) | 0.3 ppb (3) | N/A | N/A | 27.0 | |
| May 17, 2019, 3 p.m. | N/A | 8.0 ppb (7) | 31.1 ppb (29) | 25.0 ppb (23) | N/A | 1.0 ppb (1) | 24.0 ppb (18) | 0.3 ppb (3) | N/A | N/A | 29.0 | |
| May 17, 2019, 2 p.m. | N/A | 7.4 ppb (7) | 29.9 ppb (28) | 25.0 ppb (23) | N/A | 1.0 ppb (1) | 23.0 ppb (18) | 0.3 ppb (3) | N/A | N/A | 28.0 | |
| May 17, 2019, 1 p.m. | N/A | 8.5 ppb (8) | 28.4 ppb (26) | 22.0 ppb (20) | N/A | 1.0 ppb (1) | 23.0 ppb (18) | 0.3 ppb (3) | N/A | N/A | 26.0 | |
| May 17, 2019, noon | N/A | 6.4 ppb (6) | 26.3 ppb (24) | 22.0 ppb (20) | N/A | 1.0 ppb (1) | 22.0 ppb (17) | 0.3 ppb (3) | N/A | N/A | 24.0 | |
| May 17, 2019, 11 a.m. | N/A | 11.1 ppb (10) | 33.7 ppb (31) | 25.0 ppb (23) | N/A | 1.0 ppb (1) | 9.0 ppb (7) | 0.4 ppb (4) | N/A | N/A | 31.0 | |
| May 17, 2019, 10 a.m. | N/A | 11.3 ppb (10) | 31.0 ppb (29) | 18.0 ppb (17) | N/A | 1.0 ppb (1) | N/A | 0.4 ppb (4) | N/A | N/A | 29.0 | |
| May 17, 2019, 9 a.m. | N/A | 1.5 ppb (1) | 22.0 ppb (20) | 20.0 ppb (19) | N/A | N/A | N/A | 0.4 ppb (4) | N/A | N/A | 20.0 | |
| May 17, 2019, 8 a.m. | N/A | 1.0 ppb (1) | 23.0 ppb (21) | 21.0 ppb (19) | N/A | 0.0 ppb (0) | 3.0 ppb (2) | 0.3 ppb (3) | N/A | N/A | 21.0 | |
| May 17, 2019, 7 a.m. | N/A | N/A | N/A | 26.0 ppb (24) | N/A | 1.0 ppb (1) | 3.0 ppb (2) | 0.3 ppb (3) | N/A | N/A | 24.0 | |
| May 17, 2019, 6 a.m. | N/A | N/A | N/A | 26.0 ppb (24) | N/A | 0.0 ppb (0) | 4.0 ppb (3) | 0.2 ppb (2) | N/A | N/A | 24.0 | |
| May 17, 2019, 5 a.m. | N/A | 0.1 ppb (0) | 12.2 ppb (11) | 12.0 ppb (11) | N/A | 0.0 ppb (0) | 22.0 ppb (17) | 0.2 ppb (2) | N/A | N/A | 17.0 | |
| May 17, 2019, 4 a.m. | N/A | 0.0 ppb (0) | 9.1 ppb (8) | 9.0 ppb (8) | N/A | 0.0 ppb (0) | 32.0 ppb (25) | 0.2 ppb (2) | N/A | N/A | 25.0 | |
| May 17, 2019, 3 a.m. | N/A | 0.0 ppb (0) | 7.7 ppb (7) | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | 0.1 ppb (1) | N/A | N/A | 35.0 | |
| May 17, 2019, 2 a.m. | N/A | 0.1 ppb (0) | 7.2 ppb (7) | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 51.0 ppb (39) | 0.2 ppb (2) | N/A | N/A | 39.0 | |
| May 17, 2019, 1 a.m. | N/A | 0.1 ppb (0) | 9.1 ppb (8) | 9.0 ppb (8) | N/A | 0.0 ppb (0) | 54.0 ppb (42) | 0.2 ppb (2) | N/A | N/A | 42.0 | |
| May 17, 2019, midnight | N/A | 0.0 ppb (0) | 13.3 ppb (12) | 13.0 ppb (12) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.2 ppb (2) | N/A | N/A | 40.0 | |
| May 16, 2019, 11 p.m. | N/A | 0.2 ppb (0) | 8.6 ppb (8) | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 62.0 ppb (48) | 0.2 ppb (2) | N/A | N/A | 48.0 | |
| May 16, 2019, 10 p.m. | N/A | 0.4 ppb (0) | 6.6 ppb (6) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 66.0 ppb (51) | 0.2 ppb (2) | N/A | N/A | 51.0 | |
| May 16, 2019, 9 p.m. | N/A | 0.3 ppb (0) | 3.8 ppb (4) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 61.0 ppb (47) | 0.1 ppb (1) | N/A | N/A | 47.0 | |
| May 16, 2019, 8 p.m. | N/A | 0.2 ppb (0) | 3.3 ppb (3) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 60.0 ppb (46) | 0.1 ppb (1) | N/A | N/A | 46.0 | |
| May 16, 2019, 7 p.m. | N/A | 0.3 ppb (0) | 3.2 ppb (3) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 60.0 ppb (46) | 0.1 ppb (1) | N/A | N/A | 46.0 | |
| May 16, 2019, 6 p.m. | N/A | 0.2 ppb (0) | 3.0 ppb (3) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 60.0 ppb (46) | 0.1 ppb (1) | N/A | N/A | 46.0 | |
| May 16, 2019, 5 p.m. | N/A | 0.3 ppb (0) | 3.4 ppb (3) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 59.0 ppb (45) | 0.1 ppb (1) | N/A | N/A | 45.0 | |
| May 16, 2019, 4 p.m. | N/A | 0.3 ppb (0) | 3.2 ppb (3) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 59.0 ppb (45) | 0.1 ppb (1) | N/A | N/A | 45.0 | |
| May 16, 2019, 3 p.m. | N/A | 0.7 ppb (1) | 5.0 ppb (5) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | 0.1 ppb (1) | N/A | N/A | 5.0 | |
| May 16, 2019, 2 p.m. | N/A | 2.5 ppb (2) | 11.8 ppb (11) | 11.0 ppb (10) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.2 ppb (2) | N/A | N/A | 34.0 | |
| May 16, 2019, 1 p.m. | N/A | 1.6 ppb (1) | 7.8 ppb (7) | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 44.0 ppb (34) | 0.1 ppb (1) | N/A | N/A | 34.0 | |
| May 16, 2019, noon | N/A | 2.4 ppb (2) | 11.8 ppb (11) | 11.0 ppb (10) | N/A | 0.0 ppb (0) | 34.0 ppb (26) | 0.2 ppb (2) | N/A | N/A | 26.0 | |
| May 16, 2019, 11 a.m. | N/A | 0.4 ppb (0) | 10.9 ppb (10) | 12.0 ppb (11) | N/A | 0.0 ppb (0) | 31.0 ppb (24) | 0.2 ppb (2) | N/A | N/A | 24.0 | |
| May 16, 2019, 10 a.m. | N/A | 0.2 ppb (0) | 9.0 ppb (8) | 9.0 ppb (8) | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.1 ppb (1) | N/A | N/A | 27.0 | |
| May 16, 2019, 9 a.m. | N/A | 2.3 ppb (2) | 16.2 ppb (15) | 16.0 ppb (15) | N/A | 0.0 ppb (0) | 27.0 ppb (21) | 0.1 ppb (1) | N/A | N/A | 21.0 | |
| May 16, 2019, 8 a.m. | N/A | 3.9 ppb (4) | 31.8 ppb (29) | 29.0 ppb (27) | N/A | 0.0 ppb (0) | 7.0 ppb (5) | 0.2 ppb (2) | N/A | N/A | 29.0 | |
| May 16, 2019, 7 a.m. | N/A | 0.4 ppb (0) | 22.5 ppb (21) | 23.0 ppb (21) | N/A | 0.0 ppb (0) | 11.0 ppb (8) | 0.2 ppb (2) | N/A | N/A | 21.0 | |
| May 16, 2019, 6 a.m. | N/A | 0.1 ppb (0) | 20.0 ppb (19) | 19.0 ppb (18) | N/A | 0.0 ppb (0) | 19.0 ppb (15) | 0.1 ppb (1) | N/A | N/A | 19.0 | |
| May 16, 2019, 5 a.m. | N/A | 0.8 ppb (1) | 20.3 ppb (19) | 21.0 ppb (19) | N/A | 0.0 ppb (0) | 22.0 ppb (17) | 0.2 ppb (2) | N/A | N/A | 19.0 | |
| May 16, 2019, 4 a.m. | N/A | 0.1 ppb (0) | 19.6 ppb (18) | 21.0 ppb (19) | N/A | 1.0 ppb (1) | 22.0 ppb (17) | 0.2 ppb (2) | N/A | N/A | 19.0 | |
| May 16, 2019, 3 a.m. | N/A | 0.1 ppb (0) | 16.1 ppb (15) | 17.0 ppb (16) | N/A | 1.0 ppb (1) | 27.0 ppb (21) | 0.2 ppb (2) | N/A | N/A | 21.0 | |
| May 16, 2019, 2 a.m. | N/A | 0.0 ppb (0) | 15.6 ppb (14) | 16.0 ppb (15) | N/A | 1.0 ppb (1) | 30.0 ppb (23) | 0.2 ppb (2) | N/A | N/A | 23.0 | |
| May 16, 2019, 1 a.m. | N/A | 0.4 ppb (0) | 11.5 ppb (11) | 12.0 ppb (11) | N/A | 1.0 ppb (1) | 35.0 ppb (27) | 0.2 ppb (2) | N/A | N/A | 27.0 | |
| May 16, 2019, midnight | N/A | 0.7 ppb (1) | 7.9 ppb (7) | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | 0.2 ppb (2) | N/A | N/A | 32.0 | |
| May 15, 2019, 11 p.m. | N/A | 0.2 ppb (0) | 3.9 ppb (4) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.1 ppb (1) | N/A | N/A | 38.0 | |
| May 15, 2019, 10 p.m. | N/A | 0.5 ppb (0) | 3.5 ppb (3) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.1 ppb (1) | N/A | N/A | 40.0 | |
| May 15, 2019, 9 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 51.0 ppb (39) | 0.1 ppb (1) | N/A | N/A | 39.0 | |
| May 15, 2019, 8 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.2 ppb (2) | N/A | N/A | 38.0 | |
| May 15, 2019, 7 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.1 ppb (1) | N/A | N/A | 40.0 | |
| May 15, 2019, 6 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.1 ppb (1) | N/A | N/A | 38.0 | |
| May 15, 2019, 5 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 48.0 ppb (37) | 0.1 ppb (1) | N/A | N/A | 37.0 | |
| May 15, 2019, 4 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 46.0 ppb (35) | 0.1 ppb (1) | N/A | N/A | 35.0 | |
| May 15, 2019, 3 p.m. | N/A | 0.7 ppb (1) | 2.9 ppb (3) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 44.0 ppb (34) | 0.1 ppb (1) | N/A | N/A | 34.0 | |
| May 15, 2019, 2 p.m. | N/A | 0.8 ppb (1) | 3.6 ppb (3) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | 0.1 ppb (1) | N/A | N/A | 31.0 | |
| May 15, 2019, 1 p.m. | N/A | 1.4 ppb (1) | 5.5 ppb (5) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 37.0 ppb (28) | 0.1 ppb (1) | N/A | N/A | 28.0 | |
| May 15, 2019, noon | N/A | 2.8 ppb (3) | 9.0 ppb (8) | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 26.0 ppb (20) | 0.2 ppb (2) | N/A | N/A | 20.0 | |
| May 15, 2019, 11 a.m. | N/A | 4.0 ppb (4) | 13.2 ppb (12) | 9.0 ppb (8) | N/A | 0.0 ppb (0) | 18.0 ppb (14) | 0.2 ppb (2) | N/A | N/A | 14.0 | |
| May 15, 2019, 10 a.m. | N/A | 2.7 ppb (3) | 13.2 ppb (12) | 12.0 ppb (11) | N/A | 0.0 ppb (0) | 12.0 ppb (9) | 0.2 ppb (2) | N/A | N/A | 12.0 | |
| May 15, 2019, 9 a.m. | N/A | 1.1 ppb (1) | 7.5 ppb (7) | 8.0 ppb (7) | N/A | N/A | 17.0 ppb (13) | 0.1 ppb (1) | N/A | N/A | 13.0 | |
| May 15, 2019, 8 a.m. | N/A | 2.2 ppb (2) | 10.6 ppb (10) | 9.0 ppb (8) | N/A | 0.0 ppb (0) | 14.0 ppb (11) | 0.1 ppb (1) | N/A | N/A | 11.0 | |
| May 15, 2019, 7 a.m. | N/A | N/A | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | 12.0 ppb (9) | 0.1 ppb (1) | N/A | N/A | 9.0 | |
| May 15, 2019, 6 a.m. | N/A | N/A | N/A | 10.0 ppb (9) | N/A | 0.0 ppb (0) | 11.0 ppb (8) | 0.1 ppb (1) | N/A | N/A | 9.0 | |
| May 15, 2019, 5 a.m. | N/A | 0.3 ppb (0) | 9.8 ppb (9) | 11.0 ppb (10) | N/A | 0.0 ppb (0) | 12.0 ppb (9) | 0.1 ppb (1) | N/A | N/A | 10.0 | |
| May 15, 2019, 4 a.m. | N/A | 1.0 ppb (1) | 14.5 ppb (13) | 14.0 ppb (13) | N/A | 0.0 ppb (0) | 7.0 ppb (5) | 0.2 ppb (2) | N/A | N/A | 13.0 | |
| May 15, 2019, 3 a.m. | N/A | 4.4 ppb (4) | 23.2 ppb (21) | 19.0 ppb (18) | N/A | 0.0 ppb (0) | 1.0 ppb (1) | 0.2 ppb (2) | N/A | N/A | 21.0 | |
| May 15, 2019, 2 a.m. | N/A | 2.0 ppb (2) | 17.3 ppb (16) | 16.0 ppb (15) | N/A | 0.0 ppb (0) | 7.0 ppb (5) | 0.2 ppb (2) | N/A | N/A | 16.0 | |
| May 15, 2019, 1 a.m. | N/A | 0.6 ppb (1) | 11.3 ppb (10) | 12.0 ppb (11) | N/A | 0.0 ppb (0) | 14.0 ppb (11) | 0.2 ppb (2) | N/A | N/A | 11.0 | |
| May 15, 2019, midnight | N/A | 0.9 ppb (1) | 7.4 ppb (7) | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 23.0 ppb (18) | 0.1 ppb (1) | N/A | N/A | 18.0 | |
| May 14, 2019, 11 p.m. | N/A | 0.4 ppb (0) | 3.2 ppb (3) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 30.0 ppb (23) | 0.1 ppb (1) | N/A | N/A | 23.0 | |
| May 14, 2019, 10 p.m. | N/A | 0.3 ppb (0) | 2.7 ppb (3) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.1 ppb (1) | N/A | N/A | 27.0 | |
| May 14, 2019, 9 p.m. | N/A | 0.7 ppb (1) | 3.1 ppb (3) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 37.0 ppb (28) | 0.1 ppb (1) | N/A | N/A | 28.0 | |
| May 14, 2019, 8 p.m. | N/A | 1.0 ppb (1) | 3.9 ppb (4) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 38.0 ppb (29) | 0.1 ppb (1) | N/A | N/A | 29.0 | |
| May 14, 2019, 7 p.m. | N/A | 0.6 ppb (1) | 3.1 ppb (3) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 37.0 ppb (28) | 0.1 ppb (1) | N/A | N/A | 28.0 | |
| May 14, 2019, 6 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 37.0 ppb (28) | 0.1 ppb (1) | N/A | N/A | 28.0 | |
| May 14, 2019, 5 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 | |
| May 14, 2019, 4 p.m. | N/A | 0.8 ppb (1) | 3.5 ppb (3) | 4.0 ppb (4) | N/A | N/A | 36.0 ppb (28) | 0.1 ppb (1) | N/A | N/A | 28.0 |