None None, None: None, None
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sept. 21, 2019, 3:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (7) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 21, 2019, 2:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (7) | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Sept. 21, 2019, 2:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (7) | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Sept. 21, 2019, 1:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (13) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Sept. 21, 2019, 1:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (13) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Sept. 21, 2019, 1:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (13) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Sept. 21, 2019, 12:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (12) | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| Sept. 21, 2019, 12:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (12) | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| Sept. 21, 2019, 12:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (12) | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| Sept. 21, 2019, 12:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (12) | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| Sept. 21, 2019, 11:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (15) | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Sept. 21, 2019, 11:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (15) | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Sept. 21, 2019, 11:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (15) | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Sept. 21, 2019, 11:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (15) | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Sept. 21, 2019, 11:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (15) | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Sept. 21, 2019, 10:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Sept. 21, 2019, 10:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Sept. 21, 2019, 10:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Sept. 21, 2019, 10:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Sept. 21, 2019, 10:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Sept. 21, 2019, 10:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Sept. 21, 2019, 9:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| Sept. 21, 2019, 9:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| Sept. 21, 2019, 9:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| Sept. 21, 2019, 9:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| Sept. 21, 2019, 9:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| Sept. 21, 2019, 9:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| Sept. 21, 2019, 9:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| Sept. 21, 2019, 8:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 21, 2019, 8:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 21, 2019, 8:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 21, 2019, 8:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 21, 2019, 8:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 21, 2019, 8:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 21, 2019, 8:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 21, 2019, 7:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 21, 2019, 7:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 21, 2019, 7:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 21, 2019, 7:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 21, 2019, 7:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 21, 2019, 7:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 21, 2019, 7:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 21, 2019, 6:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 21, 2019, 6:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 21, 2019, 6:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 21, 2019, 6:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 21, 2019, 6:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 21, 2019, 6:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 21, 2019, 6:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 21, 2019, 5:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (42) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Sept. 21, 2019, 5:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (42) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Sept. 21, 2019, 5:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (42) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Sept. 21, 2019, 5:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (42) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Sept. 21, 2019, 5:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (42) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Sept. 21, 2019, 5:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (42) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Sept. 21, 2019, 5:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (42) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Sept. 21, 2019, 4:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Sept. 21, 2019, 4:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Sept. 21, 2019, 4:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Sept. 21, 2019, 4:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Sept. 21, 2019, 4:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Sept. 21, 2019, 4:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Sept. 21, 2019, 4:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Sept. 21, 2019, 3:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 31.0 μg/m3 (90) | 90.0 | |
| Sept. 21, 2019, 3:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 31.0 μg/m3 (90) | 90.0 | |
| Sept. 21, 2019, 3:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 31.0 μg/m3 (90) | 90.0 | |
| Sept. 21, 2019, 3:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 31.0 μg/m3 (90) | 90.0 | |
| Sept. 21, 2019, 3:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 31.0 μg/m3 (90) | 90.0 | |
| Sept. 21, 2019, 3:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 31.0 μg/m3 (90) | 90.0 | |
| Sept. 21, 2019, 3:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 31.0 μg/m3 (90) | 90.0 | |
| Sept. 21, 2019, 2:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | N/A | N/A | 28.0 μg/m3 (84) | 84.0 | |
| Sept. 21, 2019, 2:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | N/A | N/A | 28.0 μg/m3 (84) | 84.0 | |
| Sept. 21, 2019, 2:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | N/A | N/A | 28.0 μg/m3 (84) | 84.0 | |
| Sept. 21, 2019, 2:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | N/A | N/A | 28.0 μg/m3 (84) | 84.0 | |
| Sept. 21, 2019, 2:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | N/A | N/A | 28.0 μg/m3 (84) | 84.0 | |
| Sept. 21, 2019, 2:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | N/A | N/A | 28.0 μg/m3 (84) | 84.0 | |
| Sept. 21, 2019, 2:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | N/A | N/A | 28.0 μg/m3 (84) | 84.0 | |
| Sept. 21, 2019, 1:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (2) | N/A | N/A | 33.0 μg/m3 (95) | 95.0 | |
| Sept. 21, 2019, 1:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (2) | N/A | N/A | 33.0 μg/m3 (95) | 95.0 | |
| Sept. 21, 2019, 1:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (2) | N/A | N/A | 33.0 μg/m3 (95) | 95.0 | |
| Sept. 21, 2019, 1:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (2) | N/A | N/A | 33.0 μg/m3 (95) | 95.0 | |
| Sept. 21, 2019, 1:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (2) | N/A | N/A | 33.0 μg/m3 (95) | 95.0 | |
| Sept. 21, 2019, 1:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (2) | N/A | N/A | 33.0 μg/m3 (95) | 95.0 | |
| Sept. 21, 2019, 1:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (2) | N/A | N/A | 33.0 μg/m3 (95) | 95.0 | |
| Sept. 21, 2019, 12:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 μg/m3 (86) | 86.0 | |
| Sept. 21, 2019, 12:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 μg/m3 (86) | 86.0 | |
| Sept. 21, 2019, 12:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 μg/m3 (86) | 86.0 | |
| Sept. 21, 2019, 12:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 μg/m3 (86) | 86.0 | |
| Sept. 21, 2019, 12:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 μg/m3 (86) | 86.0 | |
| Sept. 21, 2019, 12:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 μg/m3 (86) | 86.0 | |
| Sept. 21, 2019, 12:15 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 μg/m3 (86) | 86.0 | |
| Sept. 20, 2019, 11:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 27.0 μg/m3 (82) | 82.0 | |
| Sept. 20, 2019, 11:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 27.0 μg/m3 (82) | 82.0 | |
| Sept. 20, 2019, 11:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 27.0 μg/m3 (82) | 82.0 | |
| Sept. 20, 2019, 11:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 27.0 μg/m3 (82) | 82.0 | |
| Sept. 20, 2019, 11:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 27.0 μg/m3 (82) | 82.0 | |
| Sept. 20, 2019, 11:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 27.0 μg/m3 (82) | 82.0 | |
| Sept. 20, 2019, 11:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 27.0 μg/m3 (82) | 82.0 | |
| Sept. 20, 2019, 10:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Sept. 20, 2019, 10:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Sept. 20, 2019, 10:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Sept. 20, 2019, 10:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Sept. 20, 2019, 10:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Sept. 20, 2019, 10:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Sept. 20, 2019, 10:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Sept. 20, 2019, 9:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -2.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 20, 2019, 9:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -2.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 20, 2019, 9:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -2.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 20, 2019, 9:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -2.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 20, 2019, 9:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -2.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 20, 2019, 9:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -2.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 20, 2019, 9:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -2.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 20, 2019, 8:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Sept. 20, 2019, 8:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Sept. 20, 2019, 8:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Sept. 20, 2019, 8:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Sept. 20, 2019, 8:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Sept. 20, 2019, 8:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Sept. 20, 2019, 8:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Sept. 20, 2019, 7:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 20, 2019, 7:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 20, 2019, 7:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 20, 2019, 7:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 20, 2019, 7:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 20, 2019, 7:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 20, 2019, 7:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 20, 2019, 6:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Sept. 20, 2019, 6:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Sept. 20, 2019, 6:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Sept. 20, 2019, 6:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Sept. 20, 2019, 6:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Sept. 20, 2019, 6:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Sept. 20, 2019, 6:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Sept. 20, 2019, 5:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 47.0 μg/m3 (129) | 129.0 | |
| Sept. 20, 2019, 5:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 47.0 μg/m3 (129) | 129.0 | |
| Sept. 20, 2019, 5:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 47.0 μg/m3 (129) | 129.0 | |
| Sept. 20, 2019, 5:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 47.0 μg/m3 (129) | 129.0 | |
| Sept. 20, 2019, 5:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 47.0 μg/m3 (129) | 129.0 | |
| Sept. 20, 2019, 5:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 47.0 μg/m3 (129) | 129.0 | |
| Sept. 20, 2019, 5:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 47.0 μg/m3 (129) | 129.0 | |
| Sept. 20, 2019, 4:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 32.0 μg/m3 (93) | 93.0 | |
| Sept. 20, 2019, 4:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 32.0 μg/m3 (93) | 93.0 | |
| Sept. 20, 2019, 4:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 32.0 μg/m3 (93) | 93.0 | |
| Sept. 20, 2019, 4:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 32.0 μg/m3 (93) | 93.0 | |
| Sept. 20, 2019, 4:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 32.0 μg/m3 (93) | 93.0 | |
| Sept. 20, 2019, 4:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 32.0 μg/m3 (93) | 93.0 | |
| Sept. 20, 2019, 4:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 32.0 μg/m3 (93) | 93.0 | |
| Sept. 20, 2019, 3:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Sept. 20, 2019, 3:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Sept. 20, 2019, 3:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Sept. 20, 2019, 3:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Sept. 20, 2019, 3:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Sept. 20, 2019, 3:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Sept. 20, 2019, 3:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Sept. 20, 2019, 2:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 34.0 μg/m3 (97) | 97.0 | |
| Sept. 20, 2019, 2:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 34.0 μg/m3 (97) | 97.0 | |
| Sept. 20, 2019, 2:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 34.0 μg/m3 (97) | 97.0 | |
| Sept. 20, 2019, 2:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 34.0 μg/m3 (97) | 97.0 | |
| Sept. 20, 2019, 2:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 34.0 μg/m3 (97) | 97.0 | |
| Sept. 20, 2019, 2:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 34.0 μg/m3 (97) | 97.0 | |
| Sept. 20, 2019, 2:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 34.0 μg/m3 (97) | 97.0 | |
| Sept. 20, 2019, 1:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (4) | N/A | N/A | 25.0 μg/m3 (78) | 78.0 | |
| Sept. 20, 2019, 1:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (4) | N/A | N/A | 25.0 μg/m3 (78) | 78.0 | |
| Sept. 20, 2019, 1:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (4) | N/A | N/A | 25.0 μg/m3 (78) | 78.0 | |
| Sept. 20, 2019, 1:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (4) | N/A | N/A | 25.0 μg/m3 (78) | 78.0 | |
| Sept. 20, 2019, 1:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (4) | N/A | N/A | 25.0 μg/m3 (78) | 78.0 | |
| Sept. 20, 2019, 1:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (4) | N/A | N/A | 25.0 μg/m3 (78) | 78.0 | |
| Sept. 20, 2019, 1:15 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (4) | N/A | N/A | 25.0 μg/m3 (78) | 78.0 |