Phoenix (S Central Ave) AZ, US: 33.4033, -112.0731
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sept. 19, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | 0.1 ppb (1) | 14.0 μg/m3 (13) | 4.5 μg/m3 (19) | 31.0 | |
| Sept. 19, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | 0.2 ppb (2) | 17.0 μg/m3 (15) | 5.3 μg/m3 (22) | 30.0 | |
| Sept. 19, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | 0.3 ppb (3) | 28.0 μg/m3 (25) | 5.6 μg/m3 (23) | 25.0 | |
| Sept. 19, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (13) | 0.4 ppb (4) | 40.0 μg/m3 (36) | 8.6 μg/m3 (36) | 36.0 | |
| Sept. 19, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 ppb (5) | 0.5 ppb (6) | 70.0 μg/m3 (58) | 11.3 μg/m3 (47) | 58.0 | |
| Sept. 19, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 0.7 ppb (8) | 49.0 μg/m3 (45) | 7.9 μg/m3 (33) | 45.0 | |
| Sept. 19, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 0.5 ppb (6) | 25.0 μg/m3 (23) | 5.7 μg/m3 (24) | 24.0 | |
| Sept. 19, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 0.4 ppb (4) | 19.0 μg/m3 (17) | 4.7 μg/m3 (20) | 20.0 | |
| Sept. 19, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (3) | 0.3 ppb (3) | 13.0 μg/m3 (12) | 3.5 μg/m3 (15) | 15.0 | |
| Sept. 19, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 ppb (8) | 0.2 ppb (2) | 12.0 μg/m3 (11) | 3.8 μg/m3 (16) | 16.0 | |
| Sept. 19, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | 0.2 ppb (2) | 12.0 μg/m3 (11) | 3.3 μg/m3 (14) | 14.0 | |
| Sept. 19, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | 0.2 ppb (2) | 13.0 μg/m3 (12) | 2.3 μg/m3 (10) | 21.0 | |
| Sept. 19, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (15) | 0.2 ppb (2) | 17.0 μg/m3 (15) | 2.2 μg/m3 (9) | 15.0 | |
| Sept. 19, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (12) | 0.3 ppb (3) | 19.0 μg/m3 (17) | 3.5 μg/m3 (15) | 17.0 | |
| Sept. 19, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 ppb (5) | 0.5 ppb (6) | 26.0 μg/m3 (24) | 4.5 μg/m3 (19) | 24.0 | |
| Sept. 19, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (3) | 0.7 ppb (8) | 30.0 μg/m3 (27) | 7.6 μg/m3 (32) | 32.0 | |
| Sept. 19, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (12) | 0.3 ppb (3) | 21.0 μg/m3 (19) | 3.9 μg/m3 (16) | 19.0 | |
| Sept. 19, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | 0.2 ppb (2) | 14.0 μg/m3 (13) | 2.6 μg/m3 (11) | 25.0 | |
| Sept. 19, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | 0.2 ppb (2) | 13.0 μg/m3 (12) | 3.3 μg/m3 (14) | 30.0 | |
| Sept. 18, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | 0.1 ppb (1) | 11.0 μg/m3 (10) | 2.3 μg/m3 (10) | 34.0 | |
| Sept. 18, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | 0.1 ppb (1) | 11.0 μg/m3 (10) | 4.1 μg/m3 (17) | 34.0 | |
| Sept. 18, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | 0.1 ppb (1) | 11.0 μg/m3 (10) | 3.2 μg/m3 (13) | 37.0 | |
| Sept. 18, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | 0.2 ppb (2) | 18.0 μg/m3 (16) | 6.0 μg/m3 (25) | 40.0 | |
| Sept. 18, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 62.0 ppb (48) | 0.2 ppb (2) | 30.0 μg/m3 (27) | 10.2 μg/m3 (42) | 48.0 | |
| Sept. 18, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 66.0 ppb (51) | 0.2 ppb (2) | 37.0 μg/m3 (34) | 8.5 μg/m3 (35) | 51.0 | |
| Sept. 18, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (41) | 0.3 ppb (3) | 34.0 μg/m3 (31) | 6.7 μg/m3 (28) | 41.0 | |
| Sept. 18, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | 0.3 ppb (3) | 30.0 μg/m3 (27) | 8.3 μg/m3 (35) | 35.0 | |
| Sept. 18, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | 0.4 ppb (4) | N/A | N/A | 15.0 | |
| Sept. 18, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 0.5 ppb (6) | N/A | N/A | 6.0 | |
| Sept. 18, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | |
| Sept. 18, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 0.6 ppb (7) | 26.0 μg/m3 (24) | 7.5 μg/m3 (31) | 31.0 | |
| Sept. 18, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | 0.5 ppb (6) | 18.0 μg/m3 (16) | 5.3 μg/m3 (22) | 22.0 | |
| Sept. 18, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 0.4 ppb (4) | 17.0 μg/m3 (15) | 6.4 μg/m3 (27) | 27.0 | |
| Sept. 18, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | 0.4 ppb (4) | 17.0 μg/m3 (15) | 6.9 μg/m3 (29) | 29.0 | |
| Sept. 18, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | 0.4 ppb (4) | 17.0 μg/m3 (15) | 7.1 μg/m3 (30) | 30.0 | |
| Sept. 18, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (4) | 0.4 ppb (4) | 16.0 μg/m3 (15) | 6.5 μg/m3 (27) | 27.0 | |
| Sept. 18, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (13) | 0.4 ppb (4) | 17.0 μg/m3 (15) | 6.6 μg/m3 (28) | 28.0 | |
| Sept. 18, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (13) | 0.4 ppb (4) | 21.0 μg/m3 (19) | 8.2 μg/m3 (34) | 34.0 | |
| Sept. 18, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 ppb (8) | 0.5 ppb (6) | 23.0 μg/m3 (21) | 7.1 μg/m3 (30) | 30.0 | |
| Sept. 18, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (4) | 0.7 ppb (8) | 19.0 μg/m3 (17) | 5.1 μg/m3 (21) | 21.0 | |
| Sept. 18, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | 0.3 ppb (3) | 16.0 μg/m3 (15) | 4.7 μg/m3 (20) | 22.0 | |
| Sept. 18, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | 0.2 ppb (2) | 12.0 μg/m3 (11) | 3.4 μg/m3 (14) | 33.0 | |
| Sept. 18, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (38) | 0.2 ppb (2) | 13.0 μg/m3 (12) | 4.4 μg/m3 (18) | 38.0 | |
| Sept. 17, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | 0.2 ppb (2) | 11.0 μg/m3 (10) | 1.0 μg/m3 (4) | 39.0 | |
| Sept. 17, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (38) | 0.1 ppb (1) | 13.0 μg/m3 (12) | 4.0 μg/m3 (17) | 38.0 | |
| Sept. 17, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | 0.1 ppb (1) | 11.0 μg/m3 (10) | 3.3 μg/m3 (14) | 37.0 | |
| Sept. 17, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | 0.2 ppb (2) | 13.0 μg/m3 (12) | 4.1 μg/m3 (17) | 37.0 | |
| Sept. 17, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | 0.2 ppb (2) | 12.0 μg/m3 (11) | 2.4 μg/m3 (10) | 36.0 | |
| Sept. 17, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | 0.2 ppb (2) | 8.0 μg/m3 (7) | 2.0 μg/m3 (8) | 35.0 | |
| Sept. 17, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | 0.2 ppb (2) | 6.0 μg/m3 (5) | 1.9 μg/m3 (8) | 31.0 | |
| Sept. 17, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | 0.2 ppb (2) | 13.0 μg/m3 (12) | 4.0 μg/m3 (17) | 30.0 | |
| Sept. 17, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | 0.3 ppb (3) | 11.0 μg/m3 (10) | 4.1 μg/m3 (17) | 23.0 | |
| Sept. 17, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | 0.3 ppb (3) | 15.0 μg/m3 (14) | 4.5 μg/m3 (19) | 19.0 | |
| Sept. 17, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (3) | 0.5 ppb (6) | 17.0 μg/m3 (15) | 5.2 μg/m3 (22) | 22.0 | |
| Sept. 17, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (2) | 0.5 ppb (6) | 14.0 μg/m3 (13) | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 17, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 ppb (9) | 0.3 ppb (3) | 6.0 μg/m3 (5) | 3.6 μg/m3 (15) | 15.0 | |
| Sept. 17, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | 0.2 ppb (2) | 3.0 μg/m3 (3) | 1.7 μg/m3 (7) | 18.0 | |
| Sept. 17, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | 0.2 ppb (2) | 5.0 μg/m3 (5) | 1.9 μg/m3 (8) | 25.0 | |
| Sept. 17, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | 0.2 ppb (2) | 8.0 μg/m3 (7) | 3.3 μg/m3 (14) | 23.0 | |
| Sept. 17, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | 0.2 ppb (2) | 4.0 μg/m3 (4) | 1.2 μg/m3 (5) | 27.0 | |
| Sept. 17, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | 0.2 ppb (2) | 9.0 μg/m3 (8) | 4.0 μg/m3 (17) | 29.0 | |
| Sept. 17, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | 0.2 ppb (2) | 13.0 μg/m3 (12) | 3.8 μg/m3 (16) | 28.0 | |
| Sept. 17, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | 0.2 ppb (2) | 24.0 μg/m3 (22) | 0.9 μg/m3 (4) | 30.0 | |
| Sept. 17, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | 0.2 ppb (2) | 40.0 μg/m3 (36) | 4.0 μg/m3 (17) | 36.0 | |
| Sept. 17, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | 0.2 ppb (2) | 205.0 μg/m3 (125) | 9.7 μg/m3 (40) | 125.0 | |
| Sept. 17, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | 0.2 ppb (2) | 82.0 μg/m3 (64) | 6.3 μg/m3 (26) | 64.0 | |
| Sept. 17, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | 0.2 ppb (2) | 44.0 μg/m3 (40) | 6.1 μg/m3 (25) | 40.0 | |
| Sept. 16, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (38) | 0.2 ppb (2) | 24.0 μg/m3 (22) | 6.7 μg/m3 (28) | 38.0 | |
| Sept. 16, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 57.0 ppb (44) | 0.2 ppb (2) | 22.0 μg/m3 (20) | 6.6 μg/m3 (28) | 44.0 | |
| Sept. 16, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 57.0 ppb (44) | 0.2 ppb (2) | 16.0 μg/m3 (15) | 4.1 μg/m3 (17) | 44.0 | |
| Sept. 16, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (45) | 0.2 ppb (2) | 13.0 μg/m3 (12) | 3.4 μg/m3 (14) | 45.0 | |
| Sept. 16, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (42) | 0.2 ppb (2) | 10.0 μg/m3 (9) | 3.0 μg/m3 (12) | 42.0 | |
| Sept. 16, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | 0.2 ppb (2) | 14.0 μg/m3 (13) | 4.9 μg/m3 (20) | 40.0 | |
| Sept. 16, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | 0.2 ppb (2) | 14.0 μg/m3 (13) | 4.3 μg/m3 (18) | 36.0 | |
| Sept. 16, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | 0.2 ppb (2) | 11.0 μg/m3 (10) | 2.6 μg/m3 (11) | 28.0 | |
| Sept. 16, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | 0.2 ppb (2) | 15.0 μg/m3 (14) | 4.4 μg/m3 (18) | 23.0 | |
| Sept. 16, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | 0.3 ppb (3) | 18.0 μg/m3 (16) | 4.9 μg/m3 (20) | 20.0 | |
| Sept. 16, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (12) | 0.3 ppb (3) | 13.0 μg/m3 (12) | 3.6 μg/m3 (15) | 15.0 | |
| Sept. 16, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (7) | 0.3 ppb (3) | 18.0 μg/m3 (16) | 3.7 μg/m3 (15) | 16.0 | |
| Sept. 16, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 ppb (10) | 0.3 ppb (3) | 20.0 μg/m3 (18) | 4.7 μg/m3 (20) | 20.0 | |
| Sept. 16, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | 0.2 ppb (2) | 11.0 μg/m3 (10) | 3.3 μg/m3 (14) | 16.0 | |
| Sept. 16, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | 0.2 ppb (2) | 8.0 μg/m3 (7) | 2.1 μg/m3 (9) | 20.0 | |
| Sept. 16, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | 0.2 ppb (2) | 11.0 μg/m3 (10) | 3.2 μg/m3 (13) | 24.0 | |
| Sept. 16, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | 0.3 ppb (3) | 11.0 μg/m3 (10) | 2.5 μg/m3 (10) | 20.0 | |
| Sept. 16, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | 0.3 ppb (3) | 22.0 μg/m3 (20) | 5.6 μg/m3 (23) | 23.0 | |
| Sept. 16, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (12) | 0.5 ppb (6) | 36.0 μg/m3 (33) | 5.9 μg/m3 (25) | 33.0 | |
| Sept. 16, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 ppb (10) | 0.5 ppb (6) | 24.0 μg/m3 (22) | 7.6 μg/m3 (32) | 32.0 | |
| Sept. 16, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | 0.5 ppb (6) | 21.0 μg/m3 (19) | 6.1 μg/m3 (25) | 25.0 | |
| Sept. 16, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | 0.4 ppb (4) | 17.0 μg/m3 (15) | 3.8 μg/m3 (16) | 25.0 | |
| Sept. 16, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | 0.2 ppb (2) | 10.0 μg/m3 (9) | 2.7 μg/m3 (11) | 35.0 | |
| Sept. 16, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | 0.1 ppb (1) | 8.0 μg/m3 (7) | 2.0 μg/m3 (8) | 39.0 | |
| Sept. 15, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | 0.1 ppb (1) | 6.0 μg/m3 (5) | 2.8 μg/m3 (12) | 38.0 | |
| Sept. 15, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (38) | 0.1 ppb (1) | 5.0 μg/m3 (5) | 2.6 μg/m3 (11) | 38.0 | |
| Sept. 15, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | 0.1 ppb (1) | 1.0 μg/m3 (1) | 0.1 μg/m3 (0) | 37.0 | |
| Sept. 15, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | 0.1 ppb (1) | 0.0 μg/m3 (0) | -1.2 μg/m3 (0) | 35.0 | |
| Sept. 15, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | 0.1 ppb (1) | 4.0 μg/m3 (4) | 3.7 μg/m3 (15) | 35.0 | |
| Sept. 15, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | 0.1 ppb (1) | 3.0 μg/m3 (3) | 1.4 μg/m3 (6) | 34.0 | |
| Sept. 15, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | 0.1 ppb (1) | 4.0 μg/m3 (4) | 2.4 μg/m3 (10) | 33.0 | |
| Sept. 15, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | 0.2 ppb (2) | 7.0 μg/m3 (6) | 4.3 μg/m3 (18) | 30.0 | |
| Sept. 15, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | 0.2 ppb (2) | 14.0 μg/m3 (13) | 2.1 μg/m3 (9) | 26.0 | |
| Sept. 15, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | 0.3 ppb (3) | 9.0 μg/m3 (8) | 0.3 μg/m3 (1) | 14.0 | |
| Sept. 15, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | 0.2 ppb (2) | 4.0 μg/m3 (4) | 0.7 μg/m3 (3) | 17.0 | |
| Sept. 15, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | 0.2 ppb (2) | 4.0 μg/m3 (4) | 1.2 μg/m3 (5) | 18.0 | |
| Sept. 15, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | 0.2 ppb (2) | 4.0 μg/m3 (4) | 1.5 μg/m3 (6) | 17.0 | |
| Sept. 15, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | 0.2 ppb (2) | 6.0 μg/m3 (5) | 3.0 μg/m3 (12) | 18.0 | |
| Sept. 15, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | 0.2 ppb (2) | 4.0 μg/m3 (4) | 1.5 μg/m3 (6) | 25.0 | |
| Sept. 15, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | 0.2 ppb (2) | 2.0 μg/m3 (2) | -0.2 μg/m3 (0) | 26.0 | |
| Sept. 15, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | 0.2 ppb (2) | 5.0 μg/m3 (5) | 2.5 μg/m3 (10) | 25.0 | |
| Sept. 15, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | 0.2 ppb (2) | 7.0 μg/m3 (6) | 1.7 μg/m3 (7) | 27.0 | |
| Sept. 15, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | 0.2 ppb (2) | 10.0 μg/m3 (9) | 5.4 μg/m3 (23) | 23.0 | |
| Sept. 15, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | 0.2 ppb (2) | 8.0 μg/m3 (7) | 3.0 μg/m3 (12) | 27.0 | |
| Sept. 15, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | 0.2 ppb (2) | 19.0 μg/m3 (17) | 6.5 μg/m3 (27) | 27.0 | |
| Sept. 15, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | 0.2 ppb (2) | 32.0 μg/m3 (29) | 2.8 μg/m3 (12) | 31.0 | |
| Sept. 15, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | 0.2 ppb (2) | 82.0 μg/m3 (64) | 3.0 μg/m3 (12) | 64.0 | |
| Sept. 15, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | 0.1 ppb (1) | 214.0 μg/m3 (130) | 5.6 μg/m3 (23) | 130.0 | |
| Sept. 14, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | 0.2 ppb (2) | 38.0 μg/m3 (35) | 2.6 μg/m3 (11) | 37.0 | |
| Sept. 14, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (42) | 0.2 ppb (2) | 5.0 μg/m3 (5) | 1.0 μg/m3 (4) | 42.0 | |
| Sept. 14, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (42) | 0.1 ppb (1) | 6.0 μg/m3 (5) | 1.2 μg/m3 (5) | 42.0 | |
| Sept. 14, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (41) | 0.2 ppb (2) | 8.0 μg/m3 (7) | 2.3 μg/m3 (10) | 41.0 | |
| Sept. 14, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | 0.2 ppb (2) | 10.0 μg/m3 (9) | 4.6 μg/m3 (19) | 40.0 | |
| Sept. 14, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | 0.1 ppb (1) | 8.0 μg/m3 (7) | 3.0 μg/m3 (12) | 40.0 | |
| Sept. 14, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | 0.2 ppb (2) | 10.0 μg/m3 (9) | 1.3 μg/m3 (5) | 37.0 | |
| Sept. 14, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | 0.2 ppb (2) | 17.0 μg/m3 (15) | 2.2 μg/m3 (9) | 32.0 | |
| Sept. 14, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | 0.2 ppb (2) | 18.0 μg/m3 (16) | 2.3 μg/m3 (10) | 27.0 | |
| Sept. 14, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | 0.2 ppb (2) | 13.0 μg/m3 (12) | 1.6 μg/m3 (7) | 27.0 | |
| Sept. 14, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | 0.2 ppb (2) | 14.0 μg/m3 (13) | 0.5 μg/m3 (2) | 28.0 | |
| Sept. 14, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | 0.2 ppb (2) | 20.0 μg/m3 (18) | 1.2 μg/m3 (5) | 27.0 | |
| Sept. 14, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | 0.2 ppb (2) | 30.0 μg/m3 (27) | 6.4 μg/m3 (27) | 27.0 | |
| Sept. 14, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | 0.3 ppb (3) | 26.0 μg/m3 (24) | 7.7 μg/m3 (32) | 32.0 | |
| Sept. 14, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | 0.3 ppb (3) | 32.0 μg/m3 (29) | 6.2 μg/m3 (26) | 29.0 | |
| Sept. 14, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 ppb (9) | 0.4 ppb (4) | 21.0 μg/m3 (19) | 6.4 μg/m3 (27) | 27.0 | |
| Sept. 14, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (12) | 0.4 ppb (4) | 28.0 μg/m3 (25) | 6.6 μg/m3 (28) | 28.0 | |
| Sept. 14, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 ppb (8) | 0.5 ppb (6) | 32.0 μg/m3 (29) | 5.4 μg/m3 (23) | 29.0 | |
| Sept. 14, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (12) | 0.4 ppb (4) | 34.0 μg/m3 (31) | 4.0 μg/m3 (17) | 31.0 | |
| Sept. 14, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | 0.4 ppb (4) | 36.0 μg/m3 (33) | 4.1 μg/m3 (17) | 33.0 | |
| Sept. 14, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | 0.3 ppb (3) | 38.0 μg/m3 (35) | 4.0 μg/m3 (17) | 35.0 | |
| Sept. 14, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | 0.3 ppb (3) | 57.0 μg/m3 (51) | 7.1 μg/m3 (30) | 51.0 | |
| Sept. 14, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | 0.3 ppb (3) | 39.0 μg/m3 (35) | 8.9 μg/m3 (37) | 40.0 | |
| Sept. 14, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 59.0 ppb (45) | 0.2 ppb (2) | 18.0 μg/m3 (16) | 7.1 μg/m3 (30) | 45.0 | |
| Sept. 13, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 65.0 ppb (50) | 0.2 ppb (2) | 17.0 μg/m3 (15) | 5.8 μg/m3 (24) | 50.0 | |
| Sept. 13, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 71.0 ppb (55) | 0.2 ppb (2) | 22.0 μg/m3 (20) | 6.8 μg/m3 (28) | 55.0 | |
| Sept. 13, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 70.0 ppb (54) | 0.2 ppb (2) | 28.0 μg/m3 (25) | 8.5 μg/m3 (35) | 54.0 | |
| Sept. 13, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 73.0 ppb (57) | 0.2 ppb (2) | N/A | N/A | 57.0 | |
| Sept. 13, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | |
| Sept. 13, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (45) | 0.2 ppb (2) | 22.0 μg/m3 (20) | 8.9 μg/m3 (37) | 45.0 | |
| Sept. 13, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | 0.3 ppb (3) | 29.0 μg/m3 (26) | 9.6 μg/m3 (40) | 40.0 | |
| Sept. 13, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | 0.3 ppb (3) | 44.0 μg/m3 (40) | 12.2 μg/m3 (50) | 50.0 | |
| Sept. 13, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (15) | 0.7 ppb (8) | 78.0 μg/m3 (62) | 15.2 μg/m3 (57) | 62.0 | |
| Sept. 13, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (4) | 0.8 ppb (9) | 73.0 μg/m3 (59) | 9.1 μg/m3 (38) | 59.0 | |
| Sept. 13, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 0.9 ppb (10) | 50.0 μg/m3 (45) | 7.5 μg/m3 (31) | 45.0 | |
| Sept. 13, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | 0.7 ppb (8) | 28.0 μg/m3 (25) | 7.1 μg/m3 (30) | 30.0 | |
| Sept. 13, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (6) | 0.4 ppb (4) | 19.0 μg/m3 (17) | 3.7 μg/m3 (15) | 17.0 | |
| Sept. 13, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (13) | 0.3 ppb (3) | 18.0 μg/m3 (16) | 3.7 μg/m3 (15) | 16.0 | |
| Sept. 13, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | 0.2 ppb (2) | 17.0 μg/m3 (15) | 2.8 μg/m3 (12) | 16.0 | |
| Sept. 13, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (13) | 0.2 ppb (2) | 19.0 μg/m3 (17) | 3.1 μg/m3 (13) | 17.0 | |
| Sept. 13, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | 0.2 ppb (2) | 26.0 μg/m3 (24) | 5.9 μg/m3 (25) | 25.0 | |
| Sept. 13, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | 0.3 ppb (3) | 25.0 μg/m3 (23) | 5.9 μg/m3 (25) | 25.0 | |
| Sept. 13, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | 0.3 ppb (3) | 27.0 μg/m3 (25) | 5.6 μg/m3 (23) | 25.0 | |
| Sept. 13, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | 0.4 ppb (4) | 32.0 μg/m3 (29) | 7.1 μg/m3 (30) | 30.0 | |
| Sept. 13, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | 0.4 ppb (4) | 33.0 μg/m3 (30) | 4.5 μg/m3 (19) | 30.0 | |
| Sept. 13, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | 0.3 ppb (3) | 28.0 μg/m3 (25) | 5.5 μg/m3 (23) | 25.0 | |
| Sept. 13, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | 0.2 ppb (2) | 15.0 μg/m3 (14) | 4.7 μg/m3 (20) | 35.0 | |
| Sept. 13, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | 0.2 ppb (2) | 10.0 μg/m3 (9) | 2.6 μg/m3 (11) | 40.0 | |
| Sept. 12, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (42) | 0.2 ppb (2) | 11.0 μg/m3 (10) | 3.8 μg/m3 (16) | 42.0 | |
| Sept. 12, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 59.0 ppb (45) | 0.2 ppb (2) | 11.0 μg/m3 (10) | 4.0 μg/m3 (17) | 45.0 | |
| Sept. 12, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 73.0 ppb (57) | 0.2 ppb (2) | 17.0 μg/m3 (15) | 7.8 μg/m3 (32) | 57.0 | |
| Sept. 12, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 71.0 ppb (55) | 0.2 ppb (2) | 18.0 μg/m3 (16) | 6.4 μg/m3 (27) | 55.0 | |
| Sept. 12, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (45) | 0.2 ppb (2) | 16.0 μg/m3 (15) | 5.7 μg/m3 (24) | 45.0 |