Seattle WA, US: 47.568236, -122.308628
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| July 21, 2019, 9 a.m. | N/A | 0.1 ppb (0) | 7.2 ppb (7) | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 27.0 ppb (21) | 0.18 ppb (2) | N/A | 7.2 μg/m3 (30) | 30.0 | |
| July 21, 2019, 8 a.m. | N/A | 0.4 ppb (0) | 13.6 ppb (13) | 13.0 ppb (12) | N/A | 1.0 ppb (1) | 24.0 ppb (18) | 0.21 ppb (2) | N/A | 7.3 μg/m3 (30) | 30.0 | |
| July 21, 2019, 7 a.m. | N/A | 0.1 ppb (0) | 10.3 ppb (10) | 10.0 ppb (9) | N/A | 1.0 ppb (1) | 28.0 ppb (22) | 0.2 ppb (2) | N/A | 7.3 μg/m3 (30) | 30.0 | |
| July 21, 2019, 6 a.m. | N/A | 0.2 ppb (0) | 10.3 ppb (10) | 9.0 ppb (8) | N/A | 1.0 ppb (1) | 30.0 ppb (23) | 0.2 ppb (2) | N/A | 6.0 μg/m3 (25) | 25.0 | |
| July 21, 2019, 5 a.m. | N/A | 0.1 ppb (0) | 12.4 ppb (11) | 12.0 ppb (11) | N/A | 1.0 ppb (1) | 29.0 ppb (22) | 0.22 ppb (2) | N/A | 6.2 μg/m3 (26) | 26.0 | |
| July 21, 2019, 4 a.m. | N/A | 0.2 ppb (0) | 20.7 ppb (19) | 22.0 ppb (20) | N/A | 1.0 ppb (1) | 20.0 ppb (15) | 0.21 ppb (2) | N/A | 5.2 μg/m3 (22) | 22.0 | |
| July 21, 2019, 3 a.m. | N/A | 0.9 ppb (1) | 17.4 ppb (16) | 18.0 ppb (17) | N/A | 1.0 ppb (1) | 23.0 ppb (18) | 0.19 ppb (2) | N/A | 4.1 μg/m3 (17) | 18.0 | |
| July 21, 2019, 2 a.m. | N/A | 1.3 ppb (1) | 10.9 ppb (10) | 9.0 ppb (8) | N/A | 1.0 ppb (1) | 33.0 ppb (25) | 0.17 ppb (2) | N/A | 5.1 μg/m3 (21) | 25.0 | |
| July 21, 2019, 1 a.m. | N/A | 1.9 ppb (2) | 9.7 ppb (9) | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 37.0 ppb (28) | 0.17 ppb (2) | N/A | 6.6 μg/m3 (28) | 28.0 | |
| July 21, 2019, midnight | N/A | 2.0 ppb (2) | 9.5 ppb (9) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 40.0 ppb (31) | 0.19 ppb (2) | N/A | 3.4 μg/m3 (14) | 31.0 | |
| July 20, 2019, 11 p.m. | N/A | 3.8 ppb (4) | 13.1 ppb (12) | 9.0 ppb (8) | N/A | 1.0 ppb (1) | 34.0 ppb (26) | 0.14 ppb (2) | N/A | 1.7 μg/m3 (7) | 26.0 | |
| July 20, 2019, 10 p.m. | N/A | 2.6 ppb (2) | 9.5 ppb (9) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 35.0 ppb (27) | 0.13 ppb (1) | N/A | 4.1 μg/m3 (17) | 27.0 | |
| July 20, 2019, 9 p.m. | N/A | 3.1 ppb (3) | 10.0 ppb (9) | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 33.0 ppb (25) | 0.13 ppb (1) | N/A | 3.7 μg/m3 (15) | 25.0 | |
| July 20, 2019, 8 p.m. | N/A | 3.1 ppb (3) | 9.3 ppb (9) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 30.0 ppb (23) | 0.13 ppb (1) | N/A | 3.5 μg/m3 (15) | 23.0 | |
| July 20, 2019, 7 p.m. | N/A | 2.5 ppb (2) | 7.3 ppb (7) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 29.0 ppb (22) | 0.13 ppb (1) | N/A | 3.2 μg/m3 (13) | 22.0 | |
| July 20, 2019, 6 p.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 24.0 ppb (18) | 0.15 ppb (2) | N/A | 5.4 μg/m3 (23) | 23.0 | |
| July 20, 2019, 5 p.m. | N/A | 13.4 ppb (12) | 24.1 ppb (22) | 11.0 ppb (10) | N/A | 1.0 ppb (1) | 15.0 ppb (12) | 0.16 ppb (2) | N/A | 4.3 μg/m3 (18) | 22.0 | |
| July 20, 2019, 4 p.m. | N/A | 3.5 ppb (3) | 8.0 ppb (7) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 18.0 ppb (14) | 0.13 ppb (1) | N/A | 3.6 μg/m3 (15) | 15.0 | |
| July 20, 2019, 3 p.m. | N/A | 3.0 ppb (3) | 7.5 ppb (7) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 17.0 ppb (13) | 0.12 ppb (1) | N/A | 4.5 μg/m3 (19) | 19.0 | |
| July 20, 2019, 2 p.m. | N/A | 2.1 ppb (2) | 6.7 ppb (6) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 16.0 ppb (12) | 0.11 ppb (1) | N/A | 3.7 μg/m3 (15) | 15.0 | |
| July 20, 2019, 1 p.m. | N/A | 0.8 ppb (1) | 5.8 ppb (5) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 16.0 ppb (12) | 0.12 ppb (1) | N/A | 3.2 μg/m3 (13) | 13.0 | |
| July 20, 2019, noon | N/A | 0.2 ppb (0) | 4.7 ppb (4) | N/A | N/A | 1.0 ppb (1) | 17.0 ppb (13) | 0.11 ppb (1) | N/A | 1.9 μg/m3 (8) | 13.0 | |
| July 20, 2019, 11 a.m. | N/A | 0.1 ppb (0) | 3.3 ppb (3) | N/A | N/A | 1.0 ppb (1) | 19.0 ppb (15) | 0.1 ppb (1) | N/A | 3.3 μg/m3 (14) | 15.0 | |
| July 20, 2019, 10 a.m. | N/A | 0.1 ppb (0) | 3.7 ppb (3) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | N/A | 0.1 ppb (1) | N/A | 2.6 μg/m3 (11) | 11.0 | |
| July 20, 2019, 9 a.m. | N/A | 0.1 ppb (0) | 3.6 ppb (3) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 20.0 ppb (15) | 0.1 ppb (1) | N/A | 1.8 μg/m3 (8) | 15.0 | |
| July 20, 2019, 8 a.m. | N/A | 0.1 ppb (0) | 4.0 ppb (4) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 20.0 ppb (15) | 0.11 ppb (1) | N/A | 1.9 μg/m3 (8) | 15.0 | |
| July 20, 2019, 7 a.m. | N/A | 0.3 ppb (0) | 5.5 ppb (5) | 5.0 ppb (5) | N/A | N/A | 19.0 ppb (15) | 0.12 ppb (1) | N/A | 3.2 μg/m3 (13) | 15.0 | |
| July 20, 2019, 6 a.m. | N/A | 0.1 ppb (0) | 4.0 ppb (4) | 4.0 ppb (4) | N/A | N/A | 21.0 ppb (16) | 0.12 ppb (1) | N/A | 2.5 μg/m3 (10) | 16.0 | |
| July 20, 2019, 5 a.m. | N/A | 0.1 ppb (0) | 5.2 ppb (5) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 20.0 ppb (15) | N/A | N/A | 3.0 μg/m3 (12) | 15.0 | |
| July 20, 2019, 4 a.m. | N/A | 0.2 ppb (0) | 4.5 ppb (4) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 22.0 ppb (17) | 0.13 ppb (1) | N/A | 2.7 μg/m3 (11) | 17.0 | |
| July 20, 2019, 3 a.m. | N/A | 0.3 ppb (0) | 3.9 ppb (4) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 25.0 ppb (19) | 0.12 ppb (1) | N/A | 5.0 μg/m3 (21) | 21.0 | |
| July 20, 2019, 2 a.m. | N/A | 1.0 ppb (1) | 6.5 ppb (6) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 27.0 ppb (21) | 0.11 ppb (1) | N/A | 3.3 μg/m3 (14) | 21.0 | |
| July 20, 2019, 1 a.m. | N/A | 1.6 ppb (1) | 8.3 ppb (8) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 30.0 ppb (23) | 0.12 ppb (1) | N/A | 3.8 μg/m3 (16) | 23.0 | |
| July 20, 2019, midnight | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 29.0 ppb (22) | 0.11 ppb (1) | N/A | 5.2 μg/m3 (22) | 22.0 | |
| July 19, 2019, 11 p.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 1.0 ppb (1) | 24.0 ppb (18) | 0.1 ppb (1) | N/A | 3.6 μg/m3 (15) | 18.0 | |
| July 19, 2019, 10 p.m. | N/A | N/A | N/A | 9.0 ppb (8) | N/A | 1.0 ppb (1) | 26.0 ppb (20) | 0.11 ppb (1) | N/A | 6.3 μg/m3 (26) | 26.0 | |
| July 19, 2019, 9 p.m. | N/A | N/A | N/A | 8.0 ppb (7) | N/A | 1.0 ppb (1) | 25.0 ppb (19) | 0.12 ppb (1) | N/A | 3.1 μg/m3 (13) | 19.0 | |
| July 19, 2019, 8 p.m. | N/A | 3.7 ppb (3) | 8.8 ppb (8) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 23.0 ppb (18) | 0.13 ppb (1) | N/A | 2.6 μg/m3 (11) | 18.0 | |
| July 19, 2019, 7 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 21.0 ppb (16) | 0.13 ppb (1) | N/A | 5.1 μg/m3 (21) | 21.0 | |
| July 19, 2019, 6 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 21.0 ppb (16) | 0.12 ppb (1) | N/A | 4.2 μg/m3 (18) | 18.0 | |
| July 19, 2019, 5 p.m. | N/A | 2.1 ppb (2) | 5.8 ppb (5) | 4.0 ppb (4) | N/A | N/A | 18.0 ppb (14) | 0.12 ppb (1) | N/A | 3.5 μg/m3 (15) | 15.0 | |
| July 19, 2019, 4 p.m. | N/A | 1.7 ppb (2) | 5.2 ppb (5) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 18.0 ppb (14) | 0.12 ppb (1) | N/A | 3.6 μg/m3 (15) | 15.0 | |
| July 19, 2019, 3 p.m. | N/A | 0.9 ppb (1) | 4.6 ppb (4) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 18.0 ppb (14) | 0.11 ppb (1) | N/A | 3.3 μg/m3 (14) | 14.0 | |
| July 19, 2019, 2 p.m. | N/A | 0.7 ppb (1) | 5.1 ppb (5) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 16.0 ppb (12) | 0.12 ppb (1) | N/A | 3.7 μg/m3 (15) | 15.0 | |
| July 19, 2019, 1 p.m. | N/A | 0.3 ppb (0) | 5.3 ppb (5) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 16.0 ppb (12) | 0.1 ppb (1) | N/A | 2.6 μg/m3 (11) | 12.0 | |
| July 19, 2019, noon | N/A | 0.1 ppb (0) | 3.3 ppb (3) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 18.0 ppb (14) | 0.09 ppb (1) | N/A | 2.2 μg/m3 (9) | 14.0 | |
| July 19, 2019, 11 a.m. | N/A | 0.1 ppb (0) | 2.4 ppb (2) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 18.0 ppb (14) | 0.1 ppb (1) | N/A | 3.3 μg/m3 (14) | 14.0 | |
| July 19, 2019, 10 a.m. | N/A | 0.1 ppb (0) | 1.4 ppb (1) | 1.0 ppb (1) | N/A | 1.0 ppb (1) | 18.0 ppb (14) | 0.09 ppb (1) | N/A | 2.5 μg/m3 (10) | 14.0 | |
| July 19, 2019, 9 a.m. | N/A | 0.1 ppb (0) | 1.6 ppb (1) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 18.0 ppb (14) | 0.09 ppb (1) | N/A | 2.7 μg/m3 (11) | 14.0 | |
| July 19, 2019, 8 a.m. | N/A | 0.1 ppb (0) | 1.2 ppb (1) | 1.0 ppb (1) | N/A | 1.0 ppb (1) | 20.0 ppb (15) | 0.1 ppb (1) | N/A | 2.4 μg/m3 (10) | 15.0 | |
| July 19, 2019, 7 a.m. | N/A | 0.1 ppb (0) | 1.9 ppb (2) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 19.0 ppb (15) | 0.11 ppb (1) | N/A | 3.5 μg/m3 (15) | 15.0 | |
| July 19, 2019, 6 a.m. | N/A | 0.1 ppb (0) | 2.5 ppb (2) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 18.0 ppb (14) | 0.11 ppb (1) | N/A | 1.9 μg/m3 (8) | 14.0 | |
| July 19, 2019, 5 a.m. | N/A | 0.1 ppb (0) | 2.9 ppb (3) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 19.0 ppb (15) | 0.12 ppb (1) | N/A | 2.2 μg/m3 (9) | 15.0 | |
| July 19, 2019, 4 a.m. | N/A | 0.2 ppb (0) | 2.9 ppb (3) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 20.0 ppb (15) | 0.12 ppb (1) | N/A | 2.8 μg/m3 (12) | 15.0 | |
| July 19, 2019, 3 a.m. | N/A | 0.3 ppb (0) | 3.5 ppb (3) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 26.0 ppb (20) | 0.14 ppb (2) | N/A | 4.9 μg/m3 (20) | 20.0 | |
| July 19, 2019, 2 a.m. | N/A | 0.4 ppb (0) | 4.5 ppb (4) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 31.0 ppb (24) | 0.15 ppb (2) | N/A | 4.4 μg/m3 (18) | 24.0 | |
| July 19, 2019, 1 a.m. | N/A | 1.1 ppb (1) | 11.7 ppb (11) | 11.0 ppb (10) | N/A | 1.0 ppb (1) | 24.0 ppb (18) | 0.19 ppb (2) | N/A | 2.9 μg/m3 (12) | 18.0 | |
| July 19, 2019, midnight | N/A | 0.5 ppb (0) | 4.9 ppb (5) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 32.0 ppb (25) | 0.14 ppb (2) | N/A | 3.8 μg/m3 (16) | 25.0 | |
| July 18, 2019, 11 p.m. | N/A | 0.8 ppb (1) | 4.0 ppb (4) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 32.0 ppb (25) | 0.15 ppb (2) | N/A | 3.3 μg/m3 (14) | 25.0 | |
| July 18, 2019, 10 p.m. | N/A | 1.8 ppb (2) | 6.9 ppb (6) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 33.0 ppb (25) | 0.12 ppb (1) | N/A | 2.4 μg/m3 (10) | 25.0 | |
| July 18, 2019, 9 p.m. | N/A | 1.7 ppb (2) | 6.9 ppb (6) | 5.0 ppb (5) | N/A | N/A | 29.0 ppb (22) | 0.14 ppb (2) | N/A | 2.6 μg/m3 (11) | 22.0 | |
| July 18, 2019, 8 p.m. | N/A | 2.0 ppb (2) | 7.2 ppb (7) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 27.0 ppb (21) | 0.13 ppb (1) | N/A | 2.8 μg/m3 (12) | 21.0 | |
| July 18, 2019, 7 p.m. | N/A | 1.4 ppb (1) | 4.7 ppb (4) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 27.0 ppb (21) | 0.12 ppb (1) | N/A | 2.8 μg/m3 (12) | 21.0 | |
| July 18, 2019, 6 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 27.0 ppb (21) | 0.11 ppb (1) | N/A | 4.8 μg/m3 (20) | 21.0 | |
| July 18, 2019, 5 p.m. | N/A | 1.2 ppb (1) | 3.3 ppb (3) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 25.0 ppb (19) | 0.12 ppb (1) | N/A | 1.8 μg/m3 (8) | 19.0 | |
| July 18, 2019, 4 p.m. | N/A | 1.2 ppb (1) | 3.1 ppb (3) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 24.0 ppb (18) | 0.12 ppb (1) | N/A | 1.3 μg/m3 (5) | 18.0 | |
| July 18, 2019, 3 p.m. | N/A | 1.2 ppb (1) | 4.6 ppb (4) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 21.0 ppb (16) | 0.13 ppb (1) | N/A | 2.6 μg/m3 (11) | 16.0 | |
| July 18, 2019, 2 p.m. | N/A | 3.0 ppb (3) | 13.6 ppb (13) | 11.0 ppb (10) | N/A | 1.0 ppb (1) | 14.0 ppb (11) | 0.19 ppb (2) | N/A | 2.1 μg/m3 (9) | 13.0 | |
| July 18, 2019, 1 p.m. | N/A | 1.0 ppb (1) | 5.1 ppb (5) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 20.0 ppb (15) | 0.13 ppb (1) | N/A | 1.9 μg/m3 (8) | 15.0 | |
| July 18, 2019, noon | N/A | 0.1 ppb (0) | 1.4 ppb (1) | N/A | N/A | 1.0 ppb (1) | 25.0 ppb (19) | 0.1 ppb (1) | N/A | 1.9 μg/m3 (8) | 19.0 | |
| July 18, 2019, 11 a.m. | N/A | 0.1 ppb (0) | 1.2 ppb (1) | N/A | N/A | 1.0 ppb (1) | 24.0 ppb (18) | 0.09 ppb (1) | N/A | 2.7 μg/m3 (11) | 18.0 | |
| July 18, 2019, 10 a.m. | N/A | 0.1 ppb (0) | 1.6 ppb (1) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | N/A | 0.09 ppb (1) | N/A | 2.0 μg/m3 (8) | 8.0 | |
| July 18, 2019, 9 a.m. | N/A | 0.1 ppb (0) | 2.3 ppb (2) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 20.0 ppb (15) | 0.09 ppb (1) | N/A | 1.9 μg/m3 (8) | 15.0 | |
| July 18, 2019, 8 a.m. | N/A | 0.1 ppb (0) | 1.8 ppb (2) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 19.0 ppb (15) | 0.09 ppb (1) | N/A | 1.4 μg/m3 (6) | 15.0 | |
| July 18, 2019, 7 a.m. | N/A | 0.1 ppb (0) | 1.4 ppb (1) | 1.0 ppb (1) | N/A | N/A | 19.0 ppb (15) | 0.1 ppb (1) | N/A | 0.5 μg/m3 (2) | 15.0 | |
| July 18, 2019, 6 a.m. | N/A | 0.1 ppb (0) | 2.9 ppb (3) | 3.0 ppb (3) | N/A | N/A | 17.0 ppb (13) | 0.1 ppb (1) | N/A | 0.5 μg/m3 (2) | 13.0 | |
| July 18, 2019, 5 a.m. | N/A | 0.3 ppb (0) | 3.7 ppb (3) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 9.0 ppb (7) | N/A | N/A | 0.7 μg/m3 (3) | 7.0 | |
| July 18, 2019, 4 a.m. | N/A | 0.5 ppb (0) | 3.1 ppb (3) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 11.0 ppb (8) | 0.11 ppb (1) | N/A | 1.1 μg/m3 (5) | 8.0 | |
| July 18, 2019, 3 a.m. | N/A | 0.4 ppb (0) | 3.2 ppb (3) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 11.0 ppb (8) | 0.11 ppb (1) | N/A | 0.9 μg/m3 (4) | 8.0 | |
| July 18, 2019, 2 a.m. | N/A | 0.7 ppb (1) | 3.7 ppb (3) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 12.0 ppb (9) | 0.1 ppb (1) | N/A | 1.6 μg/m3 (7) | 9.0 | |
| July 18, 2019, 1 a.m. | N/A | 0.8 ppb (1) | 2.9 ppb (3) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 14.0 ppb (11) | 0.1 ppb (1) | N/A | 0.4 μg/m3 (2) | 11.0 | |
| July 18, 2019, midnight | N/A | 1.4 ppb (1) | 3.4 ppb (3) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 13.0 ppb (10) | 0.11 ppb (1) | N/A | 0.1 μg/m3 (0) | 10.0 | |
| July 17, 2019, 11 p.m. | N/A | 1.5 ppb (1) | 4.3 ppb (4) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 13.0 ppb (10) | 0.12 ppb (1) | N/A | 2.4 μg/m3 (10) | 10.0 | |
| July 17, 2019, 10 p.m. | N/A | 1.6 ppb (1) | 5.3 ppb (5) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 18.0 ppb (14) | 0.12 ppb (1) | N/A | 2.7 μg/m3 (11) | 14.0 | |
| July 17, 2019, 9 p.m. | N/A | 1.7 ppb (2) | 5.0 ppb (5) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 20.0 ppb (15) | 0.12 ppb (1) | N/A | 1.9 μg/m3 (8) | 15.0 | |
| July 17, 2019, 8 p.m. | N/A | 1.8 ppb (2) | 4.4 ppb (4) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 22.0 ppb (17) | 0.12 ppb (1) | N/A | 2.8 μg/m3 (12) | 17.0 | |
| July 17, 2019, 7 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 20.0 ppb (15) | 0.13 ppb (1) | N/A | 1.6 μg/m3 (7) | 15.0 | |
| July 17, 2019, 6 p.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 19.0 ppb (15) | 0.13 ppb (1) | N/A | 1.7 μg/m3 (7) | 15.0 | |
| July 17, 2019, 5 p.m. | N/A | 2.7 ppb (3) | 10.3 ppb (10) | 9.0 ppb (8) | N/A | 1.0 ppb (1) | N/A | 0.16 ppb (2) | N/A | 2.9 μg/m3 (12) | 12.0 | |
| July 17, 2019, 4 p.m. | N/A | 1.5 ppb (1) | 6.8 ppb (6) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | 0.14 ppb (2) | N/A | 1.8 μg/m3 (8) | 8.0 | |
| July 17, 2019, 3 p.m. | N/A | 0.9 ppb (1) | 5.7 ppb (5) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 20.0 ppb (15) | 0.13 ppb (1) | N/A | 2.6 μg/m3 (11) | 15.0 | |
| July 17, 2019, 2 p.m. | N/A | 1.1 ppb (1) | 9.8 ppb (9) | 10.0 ppb (9) | N/A | 1.0 ppb (1) | 13.0 ppb (10) | 0.14 ppb (2) | N/A | 2.5 μg/m3 (10) | 10.0 | |
| July 17, 2019, 1 p.m. | N/A | 0.5 ppb (0) | 6.7 ppb (6) | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 17.0 ppb (13) | 0.12 ppb (1) | N/A | 1.9 μg/m3 (8) | 13.0 | |
| July 17, 2019, noon | N/A | 0.2 ppb (0) | 3.6 ppb (3) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 19.0 ppb (15) | 0.11 ppb (1) | N/A | 0.8 μg/m3 (3) | 15.0 | |
| July 17, 2019, 11 a.m. | N/A | 0.2 ppb (0) | 3.8 ppb (4) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 18.0 ppb (14) | 0.1 ppb (1) | N/A | 1.2 μg/m3 (5) | 14.0 | |
| July 17, 2019, 10 a.m. | N/A | 0.2 ppb (0) | 3.1 ppb (3) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 19.0 ppb (15) | 0.1 ppb (1) | N/A | 0.5 μg/m3 (2) | 15.0 | |
| July 17, 2019, 9 a.m. | N/A | 0.2 ppb (0) | 1.9 ppb (2) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 21.0 ppb (16) | 0.1 ppb (1) | N/A | 1.5 μg/m3 (6) | 16.0 | |
| July 17, 2019, 8 a.m. | N/A | 0.2 ppb (0) | 1.5 ppb (1) | 1.0 ppb (1) | N/A | 1.0 ppb (1) | 21.0 ppb (16) | 0.1 ppb (1) | N/A | 1.3 μg/m3 (5) | 16.0 | |
| July 17, 2019, 7 a.m. | N/A | 0.2 ppb (0) | 1.6 ppb (1) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 20.0 ppb (15) | 0.1 ppb (1) | N/A | 1.6 μg/m3 (7) | 15.0 | |
| July 17, 2019, 6 a.m. | N/A | 0.2 ppb (0) | 1.9 ppb (2) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 21.0 ppb (16) | 0.1 ppb (1) | N/A | 2.6 μg/m3 (11) | 16.0 | |
| July 17, 2019, 5 a.m. | N/A | 4.2 ppb (4) | 17.7 ppb (16) | 15.0 ppb (14) | N/A | 2.0 ppb (3) | 13.0 ppb (10) | 0.15 ppb (2) | N/A | 3.5 μg/m3 (15) | 16.0 | |
| July 17, 2019, 4 a.m. | N/A | 0.7 ppb (1) | 19.5 ppb (18) | 20.0 ppb (19) | N/A | 2.0 ppb (3) | 10.0 ppb (8) | 0.13 ppb (1) | N/A | 4.2 μg/m3 (18) | 19.0 | |
| July 17, 2019, 3 a.m. | N/A | 4.3 ppb (4) | 26.7 ppb (25) | 24.0 ppb (22) | N/A | 2.0 ppb (3) | 11.0 ppb (8) | 0.15 ppb (2) | N/A | 4.0 μg/m3 (17) | 25.0 | |
| July 17, 2019, 2 a.m. | N/A | 4.8 ppb (4) | 21.0 ppb (19) | 18.0 ppb (17) | N/A | 1.0 ppb (1) | 19.0 ppb (15) | 0.14 ppb (2) | N/A | 3.3 μg/m3 (14) | 19.0 | |
| July 17, 2019, 1 a.m. | N/A | 0.4 ppb (0) | 2.4 ppb (2) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 35.0 ppb (27) | 0.11 ppb (1) | N/A | 2.3 μg/m3 (10) | 27.0 | |
| July 17, 2019, midnight | N/A | 0.9 ppb (1) | 4.0 ppb (4) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 36.0 ppb (28) | 0.11 ppb (1) | N/A | 3.7 μg/m3 (15) | 28.0 | |
| July 16, 2019, 11 p.m. | N/A | 2.2 ppb (2) | 7.9 ppb (7) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 33.0 ppb (25) | 0.12 ppb (1) | N/A | 3.5 μg/m3 (15) | 25.0 | |
| July 16, 2019, 10 p.m. | N/A | 3.6 ppb (3) | 10.2 ppb (9) | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 30.0 ppb (23) | 0.12 ppb (1) | N/A | 5.0 μg/m3 (21) | 23.0 | |
| July 16, 2019, 9 p.m. | N/A | 9.8 ppb (9) | 21.1 ppb (20) | 11.0 ppb (10) | N/A | 1.0 ppb (1) | 20.0 ppb (15) | 0.13 ppb (1) | N/A | 4.1 μg/m3 (17) | 20.0 | |
| July 16, 2019, 8 p.m. | N/A | 14.5 ppb (13) | 27.6 ppb (26) | 15.0 ppb (14) | N/A | 1.0 ppb (1) | 11.0 ppb (8) | 0.16 ppb (2) | N/A | 5.7 μg/m3 (24) | 26.0 | |
| July 16, 2019, 7 p.m. | N/A | 23.8 ppb (22) | 33.4 ppb (31) | 16.0 ppb (15) | N/A | 2.0 ppb (3) | 9.0 ppb (7) | 0.17 ppb (2) | N/A | 8.1 μg/m3 (34) | 34.0 | |
| July 16, 2019, 6 p.m. | N/A | N/A | N/A | 15.0 ppb (14) | N/A | 2.0 ppb (3) | 8.0 ppb (6) | 0.18 ppb (2) | N/A | 6.9 μg/m3 (29) | 29.0 | |
| July 16, 2019, 5 p.m. | N/A | 42.1 ppb (39) | 58.2 ppb (54) | 18.0 ppb (17) | N/A | 2.0 ppb (3) | 5.0 ppb (4) | 0.21 ppb (2) | N/A | 5.5 μg/m3 (23) | 54.0 | |
| July 16, 2019, 4 p.m. | N/A | 18.1 ppb (17) | 31.1 ppb (29) | 14.0 ppb (13) | N/A | 2.0 ppb (3) | 6.0 ppb (5) | 0.19 ppb (2) | N/A | 9.1 μg/m3 (38) | 38.0 | |
| July 16, 2019, 3 p.m. | N/A | 31.8 ppb (29) | 48.3 ppb (45) | 18.0 ppb (17) | N/A | 2.0 ppb (3) | 3.0 ppb (2) | 0.24 ppb (3) | N/A | 7.2 μg/m3 (30) | 45.0 | |
| July 16, 2019, 2 p.m. | N/A | 35.5 ppb (33) | 52.1 ppb (48) | 19.0 ppb (18) | N/A | 3.0 ppb (4) | 2.0 ppb (2) | 0.22 ppb (2) | N/A | 6.3 μg/m3 (26) | 48.0 | |
| July 16, 2019, 1 p.m. | N/A | 30.1 ppb (28) | 48.4 ppb (45) | 20.0 ppb (19) | N/A | 3.0 ppb (4) | 1.0 ppb (1) | 0.19 ppb (2) | N/A | 3.6 μg/m3 (15) | 45.0 | |
| July 16, 2019, noon | N/A | 5.8 ppb (5) | 20.1 ppb (19) | N/A | N/A | 1.0 ppb (1) | 3.0 ppb (2) | 0.16 ppb (2) | N/A | 3.8 μg/m3 (16) | 19.0 | |
| July 16, 2019, 11 a.m. | N/A | 5.0 ppb (5) | 22.9 ppb (21) | N/A | N/A | 1.0 ppb (1) | 1.0 ppb (1) | 0.13 ppb (1) | N/A | 4.5 μg/m3 (19) | 21.0 | |
| July 16, 2019, 10 a.m. | N/A | 19.3 ppb (18) | 41.7 ppb (39) | 24.0 ppb (22) | N/A | 2.0 ppb (3) | N/A | 0.15 ppb (2) | N/A | 5.1 μg/m3 (21) | 39.0 | |
| July 16, 2019, 9 a.m. | N/A | 11.2 ppb (10) | 35.5 ppb (33) | 26.0 ppb (24) | N/A | 2.0 ppb (3) | 1.0 ppb (1) | 0.16 ppb (2) | N/A | 6.0 μg/m3 (25) | 33.0 | |
| July 16, 2019, 8 a.m. | N/A | 6.6 ppb (6) | 26.7 ppb (25) | 22.0 ppb (20) | N/A | 2.0 ppb (3) | 5.0 ppb (4) | 0.16 ppb (2) | N/A | 3.4 μg/m3 (14) | 25.0 | |
| July 16, 2019, 7 a.m. | N/A | 1.4 ppb (1) | 19.4 ppb (18) | 20.0 ppb (19) | N/A | N/A | 7.0 ppb (5) | 0.14 ppb (2) | N/A | 3.1 μg/m3 (13) | 19.0 | |
| July 16, 2019, 6 a.m. | N/A | 1.8 ppb (2) | 19.7 ppb (18) | 20.0 ppb (19) | N/A | N/A | 9.0 ppb (7) | 0.15 ppb (2) | N/A | 2.8 μg/m3 (12) | 19.0 | |
| July 16, 2019, 5 a.m. | N/A | 0.1 ppb (0) | 6.4 ppb (6) | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 20.0 ppb (15) | N/A | N/A | 3.3 μg/m3 (14) | 15.0 | |
| July 16, 2019, 4 a.m. | N/A | 0.1 ppb (0) | 4.7 ppb (4) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 24.0 ppb (18) | 0.13 ppb (1) | N/A | 2.3 μg/m3 (10) | 18.0 | |
| July 16, 2019, 3 a.m. | N/A | 0.2 ppb (0) | 3.8 ppb (4) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 27.0 ppb (21) | 0.12 ppb (1) | N/A | 3.2 μg/m3 (13) | 21.0 | |
| July 16, 2019, 2 a.m. | N/A | 0.3 ppb (0) | 3.4 ppb (3) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 29.0 ppb (22) | 0.12 ppb (1) | N/A | 0.8 μg/m3 (3) | 22.0 | |
| July 16, 2019, 1 a.m. | N/A | 0.4 ppb (0) | 3.5 ppb (3) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 32.0 ppb (25) | 0.13 ppb (1) | N/A | 1.8 μg/m3 (8) | 25.0 | |
| July 16, 2019, midnight | N/A | 0.7 ppb (1) | 3.5 ppb (3) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 32.0 ppb (25) | 0.12 ppb (1) | N/A | 1.8 μg/m3 (8) | 25.0 | |
| July 15, 2019, 11 p.m. | N/A | 1.2 ppb (1) | 4.9 ppb (5) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 32.0 ppb (25) | 0.15 ppb (2) | N/A | 3.1 μg/m3 (13) | 25.0 | |
| July 15, 2019, 10 p.m. | N/A | 1.0 ppb (1) | 5.0 ppb (5) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 30.0 ppb (23) | 0.14 ppb (2) | N/A | 3.8 μg/m3 (16) | 23.0 | |
| July 15, 2019, 9 p.m. | N/A | 1.4 ppb (1) | 5.5 ppb (5) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 27.0 ppb (21) | 0.13 ppb (1) | N/A | 4.7 μg/m3 (20) | 21.0 | |
| July 15, 2019, 8 p.m. | N/A | 2.1 ppb (2) | 6.9 ppb (6) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 25.0 ppb (19) | 0.13 ppb (1) | N/A | 4.0 μg/m3 (17) | 19.0 | |
| July 15, 2019, 7 p.m. | N/A | N/A | N/A | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 19.0 ppb (15) | 0.15 ppb (2) | N/A | 4.1 μg/m3 (17) | 17.0 | |
| July 15, 2019, 6 p.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 1.0 ppb (1) | 12.0 ppb (9) | 0.19 ppb (2) | N/A | 4.9 μg/m3 (20) | 20.0 | |
| July 15, 2019, 5 p.m. | N/A | 11.8 ppb (11) | 24.7 ppb (23) | 14.0 ppb (13) | N/A | 1.0 ppb (1) | 9.0 ppb (7) | 0.24 ppb (3) | N/A | 5.8 μg/m3 (24) | 24.0 | |
| July 15, 2019, 4 p.m. | N/A | 22.7 ppb (21) | 41.6 ppb (39) | 21.0 ppb (19) | N/A | 2.0 ppb (3) | 2.0 ppb (2) | 0.23 ppb (3) | N/A | 7.1 μg/m3 (30) | 39.0 | |
| July 15, 2019, 3 p.m. | N/A | 38.8 ppb (36) | 59.1 ppb (55) | 22.0 ppb (20) | N/A | 2.0 ppb (3) | 2.0 ppb (2) | 0.22 ppb (2) | N/A | 3.5 μg/m3 (15) | 55.0 | |
| July 15, 2019, 2 p.m. | N/A | 26.2 ppb (24) | 42.4 ppb (39) | 18.0 ppb (17) | N/A | 2.0 ppb (3) | 5.0 ppb (4) | 0.2 ppb (2) | N/A | 3.0 μg/m3 (12) | 39.0 | |
| July 15, 2019, 1 p.m. | N/A | 0.3 ppb (0) | 3.2 ppb (3) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 19.0 ppb (15) | 0.11 ppb (1) | N/A | 2.0 μg/m3 (8) | 15.0 | |
| July 15, 2019, noon | N/A | 0.1 ppb (0) | 3.6 ppb (3) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 17.0 ppb (13) | 0.12 ppb (1) | N/A | 1.6 μg/m3 (7) | 13.0 | |
| July 15, 2019, 11 a.m. | N/A | 0.1 ppb (0) | 2.5 ppb (2) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 19.0 ppb (15) | 0.11 ppb (1) | N/A | 1.9 μg/m3 (8) | 15.0 | |
| July 15, 2019, 10 a.m. | N/A | 0.1 ppb (0) | 2.3 ppb (2) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 20.0 ppb (15) | 0.11 ppb (1) | N/A | 1.3 μg/m3 (5) | 15.0 | |
| July 15, 2019, 9 a.m. | N/A | 0.1 ppb (0) | 2.8 ppb (3) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 20.0 ppb (15) | 0.11 ppb (1) | N/A | 1.8 μg/m3 (8) | 15.0 | |
| July 15, 2019, 8 a.m. | N/A | 0.1 ppb (0) | 3.3 ppb (3) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 21.0 ppb (16) | 0.11 ppb (1) | N/A | 2.1 μg/m3 (9) | 16.0 | |
| July 15, 2019, 7 a.m. | N/A | 0.1 ppb (0) | 3.8 ppb (4) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 23.0 ppb (18) | 0.11 ppb (1) | N/A | 2.6 μg/m3 (11) | 18.0 | |
| July 15, 2019, 6 a.m. | N/A | 0.1 ppb (0) | 4.0 ppb (4) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 28.0 ppb (22) | 0.12 ppb (1) | N/A | 5.2 μg/m3 (22) | 22.0 | |
| July 15, 2019, 5 a.m. | N/A | 0.1 ppb (0) | 11.7 ppb (11) | 12.0 ppb (11) | N/A | 1.0 ppb (1) | 21.0 ppb (16) | 0.18 ppb (2) | N/A | 5.6 μg/m3 (23) | 23.0 | |
| July 15, 2019, 4 a.m. | N/A | 0.2 ppb (0) | 11.3 ppb (10) | 11.0 ppb (10) | N/A | 1.0 ppb (1) | 27.0 ppb (21) | 0.21 ppb (2) | N/A | 5.2 μg/m3 (22) | 22.0 | |
| July 15, 2019, 3 a.m. | N/A | 0.3 ppb (0) | 8.6 ppb (8) | 8.0 ppb (7) | N/A | 1.0 ppb (1) | 32.0 ppb (25) | 0.18 ppb (2) | N/A | 4.3 μg/m3 (18) | 25.0 | |
| July 15, 2019, 2 a.m. | N/A | 0.7 ppb (1) | 9.2 ppb (9) | 8.0 ppb (7) | N/A | 1.0 ppb (1) | 38.0 ppb (29) | 0.17 ppb (2) | N/A | 5.0 μg/m3 (21) | 29.0 | |
| July 15, 2019, 1 a.m. | N/A | 0.9 ppb (1) | 6.9 ppb (6) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 45.0 ppb (35) | 0.15 ppb (2) | N/A | 5.4 μg/m3 (23) | 35.0 | |
| July 15, 2019, midnight | N/A | 1.3 ppb (1) | 7.5 ppb (7) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 44.0 ppb (34) | 0.14 ppb (2) | N/A | 5.8 μg/m3 (24) | 34.0 | |
| July 14, 2019, 11 p.m. | N/A | 1.9 ppb (2) | 8.4 ppb (8) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 41.0 ppb (32) | 0.15 ppb (2) | N/A | 6.0 μg/m3 (25) | 32.0 | |
| July 14, 2019, 10 p.m. | N/A | 2.7 ppb (3) | 9.9 ppb (9) | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 37.0 ppb (28) | 0.14 ppb (2) | N/A | 6.8 μg/m3 (28) | 28.0 | |
| July 14, 2019, 9 p.m. | N/A | 5.3 ppb (5) | 14.9 ppb (14) | 10.0 ppb (9) | N/A | 1.0 ppb (1) | 30.0 ppb (23) | 0.15 ppb (2) | N/A | 6.1 μg/m3 (25) | 25.0 | |
| July 14, 2019, 8 p.m. | N/A | 3.8 ppb (4) | 10.7 ppb (10) | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 28.0 ppb (22) | 0.15 ppb (2) | N/A | 5.3 μg/m3 (22) | 22.0 | |
| July 14, 2019, 7 p.m. | N/A | 6.4 ppb (6) | 13.0 ppb (12) | 9.0 ppb (8) | N/A | 1.0 ppb (1) | 22.0 ppb (17) | 0.15 ppb (2) | N/A | 3.5 μg/m3 (15) | 17.0 | |
| July 14, 2019, 6 p.m. | N/A | N/A | N/A | 12.0 ppb (11) | N/A | 1.0 ppb (1) | 15.0 ppb (12) | 0.15 ppb (2) | N/A | 6.3 μg/m3 (26) | 26.0 | |
| July 14, 2019, 5 p.m. | N/A | 9.3 ppb (9) | 18.8 ppb (17) | 10.0 ppb (9) | N/A | 1.0 ppb (1) | 13.0 ppb (10) | 0.16 ppb (2) | N/A | 4.2 μg/m3 (18) | 18.0 | |
| July 14, 2019, 4 p.m. | N/A | 8.5 ppb (8) | 17.0 ppb (16) | 9.0 ppb (8) | N/A | 1.0 ppb (1) | 12.0 ppb (9) | 0.15 ppb (2) | N/A | 3.5 μg/m3 (15) | 16.0 | |
| July 14, 2019, 3 p.m. | N/A | 3.6 ppb (3) | 8.7 ppb (8) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 15.0 ppb (12) | 0.16 ppb (2) | N/A | 4.4 μg/m3 (18) | 18.0 | |
| July 14, 2019, 2 p.m. | N/A | 2.7 ppb (3) | 8.1 ppb (8) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 14.0 ppb (11) | 0.13 ppb (1) | N/A | 4.9 μg/m3 (20) | 20.0 | |
| July 14, 2019, 1 p.m. | N/A | 14.8 ppb (14) | 28.5 ppb (26) | 15.0 ppb (14) | N/A | 1.0 ppb (1) | 5.0 ppb (4) | 0.18 ppb (2) | N/A | 3.1 μg/m3 (13) | 26.0 | |
| July 14, 2019, noon | N/A | 1.2 ppb (1) | 8.3 ppb (8) | N/A | N/A | 1.0 ppb (1) | 12.0 ppb (9) | 0.14 ppb (2) | N/A | 4.2 μg/m3 (18) | 18.0 | |
| July 14, 2019, 11 a.m. | N/A | 0.4 ppb (0) | 3.7 ppb (3) | N/A | N/A | 1.0 ppb (1) | 18.0 ppb (14) | 0.14 ppb (2) | N/A | 3.1 μg/m3 (13) | 14.0 | |
| July 14, 2019, 10 a.m. | N/A | 0.1 ppb (0) | 1.5 ppb (1) | 1.0 ppb (1) | N/A | 1.0 ppb (1) | N/A | 0.1 ppb (1) | N/A | 1.9 μg/m3 (8) | 8.0 |