San Luis Obispo Co CA, US: 35.02079, -120.56389
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 24, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 24.0 μg/m3 (22) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 24, 2019, midnight | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 30.0 μg/m3 (27) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 23, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 21.0 μg/m3 (19) | 4.0 μg/m3 (17) | 19.0 | |
| Jan. 23, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 18.0 μg/m3 (16) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 23, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 16.0 μg/m3 (15) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 23, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 12.0 μg/m3 (11) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 23, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 20.0 μg/m3 (18) | 4.0 μg/m3 (17) | 18.0 | |
| Jan. 23, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 16.0 μg/m3 (15) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 23, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 20.0 μg/m3 (18) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 23, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (17) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 23, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 11.0 μg/m3 (10) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 23, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 10.0 μg/m3 (9) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 23, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 7.0 μg/m3 (6) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 23, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 μg/m3 (8) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 23, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 9.0 μg/m3 (8) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 23, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 9.0 μg/m3 (8) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 23, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 13.0 μg/m3 (12) | 3.0 μg/m3 (12) | 12.0 | |
| Jan. 23, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 11.0 μg/m3 (10) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 23, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 10.0 μg/m3 (9) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 23, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 12.0 μg/m3 (11) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 23, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 10.0 μg/m3 (9) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 23, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 12.0 μg/m3 (11) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 23, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 12.0 μg/m3 (11) | 3.0 μg/m3 (12) | 12.0 | |
| Jan. 23, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 7.0 μg/m3 (6) | 3.0 μg/m3 (12) | 12.0 | |
| Jan. 23, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 9.0 μg/m3 (8) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 23, 2019, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 8.0 μg/m3 (7) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 22, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | |
| Jan. 22, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 8.0 μg/m3 (7) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 22, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 11.0 μg/m3 (10) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 22, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 10.0 μg/m3 (9) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 22, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 8.0 μg/m3 (7) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 22, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 9.0 μg/m3 (8) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 22, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 8.0 μg/m3 (7) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 22, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 11.0 μg/m3 (10) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 22, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 20.0 μg/m3 (18) | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 22, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 12.0 μg/m3 (11) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 22, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 9.0 μg/m3 (8) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 22, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 μg/m3 (9) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 22, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 8.0 μg/m3 (7) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 22, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 10.0 μg/m3 (9) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 22, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 12.0 μg/m3 (11) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 22, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 14.0 μg/m3 (13) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 22, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 14.0 μg/m3 (13) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 22, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 11.0 μg/m3 (10) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 22, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 12.0 μg/m3 (11) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 22, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 16.0 μg/m3 (15) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 22, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 20.0 μg/m3 (18) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 22, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 28.0 μg/m3 (25) | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 22, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 73.0 μg/m3 (59) | 9.0 μg/m3 (38) | 59.0 | |
| Jan. 22, 2019, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 268.0 μg/m3 (156) | 34.0 μg/m3 (97) | 156.0 | |
| Jan. 21, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 138.0 μg/m3 (92) | 19.0 μg/m3 (65) | 92.0 | |
| Jan. 21, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 58.0 μg/m3 (52) | 14.0 μg/m3 (54) | 54.0 | |
| Jan. 21, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 17.0 μg/m3 (15) | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 21, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 8.0 μg/m3 (7) | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 21, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 10.0 μg/m3 (9) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 21, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 13.0 μg/m3 (12) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 21, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 12.0 μg/m3 (11) | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 21, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 15.0 μg/m3 (14) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 21, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 22.0 μg/m3 (20) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 21, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 17.0 μg/m3 (15) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 21, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 14.0 μg/m3 (13) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 21, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 μg/m3 (18) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 21, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (17) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 21, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 20.0 μg/m3 (18) | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 21, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 39.0 μg/m3 (35) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 21, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 20.0 μg/m3 (18) | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 21, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 14.0 μg/m3 (13) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 21, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 50.0 μg/m3 (45) | 10.0 μg/m3 (42) | 45.0 | |
| Jan. 21, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 21.0 μg/m3 (19) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 21, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 13.0 μg/m3 (12) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 21, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 13.0 μg/m3 (12) | 3.0 μg/m3 (12) | 12.0 | |
| Jan. 21, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 9.0 μg/m3 (8) | 3.0 μg/m3 (12) | 12.0 | |
| Jan. 21, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 9.0 μg/m3 (8) | 3.0 μg/m3 (12) | 12.0 | |
| Jan. 21, 2019, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 11.0 μg/m3 (10) | 3.0 μg/m3 (12) | 12.0 | |
| Jan. 20, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 10.0 μg/m3 (9) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 20, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 15.0 μg/m3 (14) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 20, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 14.0 μg/m3 (13) | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 20, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (17) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 20, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 21.0 μg/m3 (19) | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 20, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 15.0 μg/m3 (14) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 20, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 13.0 μg/m3 (12) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 20, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (17) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 20, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 16.0 μg/m3 (15) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 20, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 10.0 μg/m3 (9) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 20, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 25.0 μg/m3 (23) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 20, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 μg/m3 (13) | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 20, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 14.0 μg/m3 (13) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 20, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 11.0 μg/m3 (10) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 20, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 14.0 μg/m3 (13) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 20, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 11.0 μg/m3 (10) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 20, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 12.0 μg/m3 (11) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 20, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 9.0 μg/m3 (8) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 20, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 9.0 μg/m3 (8) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 20, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 28.0 μg/m3 (25) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 20, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 56.0 μg/m3 (50) | 8.0 μg/m3 (33) | 50.0 | |
| Jan. 20, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 14.0 μg/m3 (13) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 20, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 370.0 μg/m3 (221) | 6.0 μg/m3 (25) | 221.0 | |
| Jan. 20, 2019, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 6.0 μg/m3 (5) | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 19, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 74.0 μg/m3 (60) | 13.0 μg/m3 (52) | 60.0 | |
| Jan. 19, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 74.0 μg/m3 (60) | 21.0 μg/m3 (69) | 69.0 | |
| Jan. 19, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 53.0 μg/m3 (48) | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 19, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 45.0 μg/m3 (41) | 12.0 μg/m3 (50) | 50.0 | |
| Jan. 19, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 17.0 μg/m3 (15) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 19, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 7.0 μg/m3 (6) | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 19, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 8.0 μg/m3 (7) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 19, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 16.0 μg/m3 (15) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 19, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 13.0 μg/m3 (12) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 19, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 16.0 μg/m3 (15) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 19, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 6.0 μg/m3 (5) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 19, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 μg/m3 (7) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 19, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 12.0 μg/m3 (11) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 19, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 10.0 μg/m3 (9) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 19, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 8.0 μg/m3 (7) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 19, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 9.0 μg/m3 (8) | 3.0 μg/m3 (12) | 12.0 | |
| Jan. 19, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 15.0 μg/m3 (14) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 19, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 12.0 μg/m3 (11) | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 19, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 15.0 μg/m3 (14) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 19, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 17.0 μg/m3 (15) | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 19, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 25.0 μg/m3 (23) | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 19, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 47.0 μg/m3 (43) | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 19, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 73.0 μg/m3 (59) | 23.0 μg/m3 (73) | 73.0 | |
| Jan. 19, 2019, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 66.0 μg/m3 (56) | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 18, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 67.0 μg/m3 (56) | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 18, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 38.0 μg/m3 (35) | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 18, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 28.0 μg/m3 (25) | 17.0 μg/m3 (61) | 61.0 | |
| Jan. 18, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 36.0 μg/m3 (33) | 14.0 μg/m3 (54) | 54.0 | |
| Jan. 18, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (17) | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 18, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 11.0 μg/m3 (10) | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 18, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 13.0 μg/m3 (12) | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 18, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 9.0 μg/m3 (8) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 18, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 11.0 μg/m3 (10) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 18, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 7.0 μg/m3 (6) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 18, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 6.0 μg/m3 (5) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 18, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 μg/m3 (7) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 18, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 6.0 μg/m3 (5) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 18, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 18.0 μg/m3 (16) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 18, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (17) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 18, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 23.0 μg/m3 (21) | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 18, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 22.0 μg/m3 (20) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 18, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 24.0 μg/m3 (22) | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 18, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 50.0 μg/m3 (45) | 14.0 μg/m3 (54) | 54.0 | |
| Jan. 18, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 59.0 μg/m3 (52) | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 18, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 77.0 μg/m3 (61) | 19.0 μg/m3 (65) | 65.0 | |
| Jan. 18, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 47.0 μg/m3 (43) | 7.0 μg/m3 (29) | 43.0 | |
| Jan. 18, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 46.0 μg/m3 (42) | 8.0 μg/m3 (33) | 42.0 | |
| Jan. 18, 2019, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 38.0 μg/m3 (35) | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 17, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 44.0 μg/m3 (40) | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 17, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 47.0 μg/m3 (43) | 21.0 μg/m3 (69) | 69.0 | |
| Jan. 17, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 42.0 μg/m3 (38) | 22.0 μg/m3 (71) | 71.0 | |
| Jan. 17, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 38.0 μg/m3 (35) | 20.0 μg/m3 (67) | 67.0 | |
| Jan. 17, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 28.0 μg/m3 (25) | 19.0 μg/m3 (65) | 65.0 | |
| Jan. 17, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 16.0 μg/m3 (15) | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 17, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 20.0 μg/m3 (18) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 17, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 18.0 μg/m3 (16) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 17, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 20.0 μg/m3 (18) | 2.0 μg/m3 (8) | 18.0 | |
| Jan. 17, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 15.0 μg/m3 (14) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 17, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 19.0 μg/m3 (17) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 17, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 μg/m3 (9) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 17, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 7.0 μg/m3 (6) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 17, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 9.0 μg/m3 (8) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 17, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 8.0 μg/m3 (7) | 3.0 μg/m3 (12) | 12.0 | |
| Jan. 17, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 8.0 μg/m3 (7) | 3.0 μg/m3 (12) | 12.0 | |
| Jan. 17, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 7.0 μg/m3 (6) | 2.0 μg/m3 (8) | 8.0 | |
| Jan. 17, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 8.0 μg/m3 (7) | 2.0 μg/m3 (8) | 8.0 | |
| Jan. 17, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 7.0 μg/m3 (6) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 17, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 5.0 μg/m3 (5) | 3.0 μg/m3 (12) | 12.0 | |
| Jan. 17, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 5.0 μg/m3 (5) | 3.0 μg/m3 (12) | 12.0 | |
| Jan. 17, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 6.0 μg/m3 (5) | 3.0 μg/m3 (12) | 12.0 |