Simi Valley (Simi Valley High School) CA, US: 34.2775, -118.6847
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 28, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 45.0 μg/m3 (42) | 5.0 μg/m3 (21) | 42.0 | |
| Feb. 28, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 29.0 μg/m3 (27) | 2.0 μg/m3 (9) | 43.0 | |
| Feb. 28, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 26.0 μg/m3 (25) | 2.0 μg/m3 (9) | 43.0 | |
| Feb. 28, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 28.0 μg/m3 (26) | 2.0 μg/m3 (9) | 44.0 | |
| Feb. 28, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 24.0 μg/m3 (23) | 2.0 μg/m3 (9) | 43.0 | |
| Feb. 28, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 19.0 μg/m3 (18) | 3.0 μg/m3 (13) | 43.0 | |
| Feb. 27, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 14.0 μg/m3 (13) | 1.0 μg/m3 (5) | 44.0 | |
| Feb. 27, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (45) | N/A | 13.0 μg/m3 (13) | 1.0 μg/m3 (5) | 45.0 | |
| Feb. 27, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 8.0 μg/m3 (8) | 2.0 μg/m3 (9) | 44.0 | |
| Feb. 27, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 10.0 μg/m3 (10) | 3.0 μg/m3 (13) | 43.0 | |
| Feb. 27, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 14.0 μg/m3 (13) | 4.0 μg/m3 (17) | 43.0 | |
| Feb. 27, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 14.0 μg/m3 (13) | 5.0 μg/m3 (21) | 42.0 | |
| Feb. 27, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 15.0 μg/m3 (14) | 3.0 μg/m3 (13) | 40.0 | |
| Feb. 27, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 18.0 μg/m3 (17) | 5.0 μg/m3 (21) | 38.0 | |
| Feb. 27, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 21.0 μg/m3 (20) | 7.0 μg/m3 (30) | 38.0 | |
| Feb. 27, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 19.0 μg/m3 (18) | 6.0 μg/m3 (25) | 42.0 | |
| Feb. 27, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 31.0 μg/m3 (29) | 6.0 μg/m3 (25) | 44.0 | |
| Feb. 27, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 17.0 μg/m3 (16) | 3.0 μg/m3 (13) | 41.0 | |
| Feb. 27, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 14.0 μg/m3 (13) | 4.0 μg/m3 (17) | 42.0 | |
| Feb. 27, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 13.0 μg/m3 (13) | 4.0 μg/m3 (17) | 38.0 | |
| Feb. 27, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 μg/m3 (13) | 6.0 μg/m3 (25) | 25.0 | |
| Feb. 27, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 16.0 μg/m3 (15) | 10.0 μg/m3 (42) | 42.0 | |
| Feb. 27, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 ppb (10) | N/A | 33.0 μg/m3 (31) | 15.0 μg/m3 (58) | 58.0 | |
| Feb. 27, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (8) | N/A | 29.0 μg/m3 (27) | 14.0 μg/m3 (55) | 55.0 | |
| Feb. 27, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 ppb (11) | N/A | 33.0 μg/m3 (31) | 17.0 μg/m3 (62) | 62.0 | |
| Feb. 27, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 31.0 μg/m3 (29) | 11.0 μg/m3 (46) | 46.0 | |
| Feb. 27, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (31) | N/A | 18.0 μg/m3 (17) | 13.0 μg/m3 (53) | 53.0 | |
| Feb. 27, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 31.0 μg/m3 (29) | 10.0 μg/m3 (42) | 42.0 | |
| Feb. 27, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (46) | N/A | 17.0 μg/m3 (16) | 5.0 μg/m3 (21) | 46.0 | |
| Feb. 27, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (46) | N/A | 21.0 μg/m3 (20) | 5.0 μg/m3 (21) | 46.0 | |
| Feb. 26, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (48) | N/A | 19.0 μg/m3 (18) | 6.0 μg/m3 (25) | 48.0 | |
| Feb. 26, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (47) | N/A | 22.0 μg/m3 (21) | 6.0 μg/m3 (25) | 47.0 | |
| Feb. 26, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (47) | N/A | 30.0 μg/m3 (28) | 5.0 μg/m3 (21) | 47.0 | |
| Feb. 26, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (45) | N/A | 22.0 μg/m3 (21) | 2.0 μg/m3 (9) | 45.0 | |
| Feb. 26, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 17.0 μg/m3 (16) | 1.0 μg/m3 (5) | 42.0 | |
| Feb. 26, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 10.0 μg/m3 (10) | 2.0 μg/m3 (9) | 42.0 | |
| Feb. 26, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 7.0 μg/m3 (7) | 3.0 μg/m3 (13) | 43.0 | |
| Feb. 26, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 18.0 μg/m3 (17) | 4.0 μg/m3 (17) | 38.0 | |
| Feb. 26, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (20) | N/A | 16.0 μg/m3 (15) | 8.0 μg/m3 (34) | 34.0 | |
| Feb. 26, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (29) | N/A | 15.0 μg/m3 (14) | 8.0 μg/m3 (34) | 34.0 | |
| Feb. 26, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 19.0 μg/m3 (18) | 4.0 μg/m3 (17) | 39.0 | |
| Feb. 26, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 12.0 μg/m3 (12) | 5.0 μg/m3 (21) | 41.0 | |
| Feb. 26, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 12.0 μg/m3 (12) | 4.0 μg/m3 (17) | 43.0 | |
| Feb. 26, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 16.0 μg/m3 (15) | 3.0 μg/m3 (13) | 42.0 | |
| Feb. 26, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 μg/m3 (14) | 2.0 μg/m3 (9) | 14.0 | |
| Feb. 26, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 15.0 μg/m3 (14) | 1.0 μg/m3 (5) | 41.0 | |
| Feb. 26, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 6.0 μg/m3 (6) | 2.0 μg/m3 (9) | 42.0 | |
| Feb. 26, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 7.0 μg/m3 (7) | 2.0 μg/m3 (9) | 42.0 | |
| Feb. 26, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 10.0 μg/m3 (10) | 2.0 μg/m3 (9) | 41.0 | |
| Feb. 26, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | N/A | 13.0 μg/m3 (13) | 2.0 μg/m3 (9) | 33.0 | |
| Feb. 26, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 10.0 μg/m3 (10) | 2.0 μg/m3 (9) | 38.0 | |
| Feb. 26, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 8.0 μg/m3 (8) | -1.0 μg/m3 (0) | 42.0 | |
| Feb. 26, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 11.0 μg/m3 (11) | -1.0 μg/m3 (0) | 43.0 | |
| Feb. 26, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 μg/m3 (12) | 0.0 μg/m3 (0) | 12.0 | |
| Feb. 25, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 13.0 μg/m3 (13) | 1.0 μg/m3 (5) | 44.0 | |
| Feb. 25, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 22.0 μg/m3 (21) | 3.0 μg/m3 (13) | 44.0 | |
| Feb. 25, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 19.0 μg/m3 (18) | 3.0 μg/m3 (13) | 44.0 | |
| Feb. 25, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 25.0 μg/m3 (24) | 4.0 μg/m3 (17) | 44.0 | |
| Feb. 25, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 35.0 μg/m3 (33) | 3.0 μg/m3 (13) | 44.0 | |
| Feb. 25, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 31.0 μg/m3 (29) | 3.0 μg/m3 (13) | 44.0 | |
| Feb. 25, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 43.0 μg/m3 (40) | 2.0 μg/m3 (9) | 44.0 | |
| Feb. 25, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (46) | N/A | 44.0 μg/m3 (41) | 5.0 μg/m3 (21) | 46.0 | |
| Feb. 25, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 56.0 μg/m3 (52) | 7.0 μg/m3 (30) | 52.0 | |
| Feb. 25, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (45) | N/A | 71.0 μg/m3 (59) | 5.0 μg/m3 (21) | 59.0 | |
| Feb. 25, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (47) | N/A | 102.0 μg/m3 (75) | 8.0 μg/m3 (34) | 75.0 | |
| Feb. 25, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (45) | N/A | 166.0 μg/m3 (107) | 14.0 μg/m3 (55) | 107.0 | |
| Feb. 25, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 195.0 μg/m3 (121) | 17.0 μg/m3 (62) | 121.0 | |
| Feb. 25, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 301.0 μg/m3 (174) | 28.0 μg/m3 (85) | 174.0 | |
| Feb. 25, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 126.0 μg/m3 (87) | 11.0 μg/m3 (46) | 87.0 | |
| Feb. 25, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 51.0 μg/m3 (48) | 8.0 μg/m3 (34) | 48.0 | |
| Feb. 25, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (45) | N/A | 29.0 μg/m3 (27) | 8.0 μg/m3 (34) | 45.0 | |
| Feb. 25, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (45) | N/A | 22.0 μg/m3 (21) | 6.0 μg/m3 (25) | 45.0 | |
| Feb. 25, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 29.0 μg/m3 (27) | 8.0 μg/m3 (34) | 44.0 | |
| Feb. 25, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | N/A | 29.0 μg/m3 (27) | 11.0 μg/m3 (46) | 46.0 | |
| Feb. 25, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 27.0 μg/m3 (25) | 11.0 μg/m3 (46) | 46.0 | |
| Feb. 25, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (50) | N/A | 24.0 μg/m3 (23) | 10.0 μg/m3 (42) | 50.0 | |
| Feb. 25, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 57.0 ppb (58) | N/A | 21.0 μg/m3 (20) | 7.0 μg/m3 (30) | 58.0 | |
| Feb. 25, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (61) | N/A | 29.0 μg/m3 (27) | 10.0 μg/m3 (42) | 61.0 | |
| Feb. 24, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 57.0 ppb (58) | N/A | 26.0 μg/m3 (25) | 9.0 μg/m3 (38) | 58.0 | |
| Feb. 24, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (51) | N/A | 29.0 μg/m3 (27) | 9.0 μg/m3 (38) | 51.0 | |
| Feb. 24, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (50) | N/A | 29.0 μg/m3 (27) | 2.0 μg/m3 (9) | 50.0 | |
| Feb. 24, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (51) | N/A | 12.0 μg/m3 (12) | 4.0 μg/m3 (17) | 51.0 | |
| Feb. 24, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (47) | N/A | 9.0 μg/m3 (9) | 6.0 μg/m3 (25) | 47.0 | |
| Feb. 24, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (45) | N/A | 11.0 μg/m3 (11) | 4.0 μg/m3 (17) | 45.0 | |
| Feb. 24, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 12.0 μg/m3 (12) | 6.0 μg/m3 (25) | 41.0 | |
| Feb. 24, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | N/A | 19.0 μg/m3 (18) | 11.0 μg/m3 (46) | 46.0 | |
| Feb. 24, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (7) | N/A | 30.0 μg/m3 (28) | 10.0 μg/m3 (42) | 42.0 | |
| Feb. 24, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 23.0 μg/m3 (22) | 11.0 μg/m3 (46) | 46.0 | |
| Feb. 24, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (20) | N/A | 19.0 μg/m3 (18) | 11.0 μg/m3 (46) | 46.0 | |
| Feb. 24, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (25) | N/A | 16.0 μg/m3 (15) | 11.0 μg/m3 (46) | 46.0 | |
| Feb. 24, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (26) | N/A | 17.0 μg/m3 (16) | 11.0 μg/m3 (46) | 46.0 | |
| Feb. 24, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (27) | N/A | 18.0 μg/m3 (17) | 10.0 μg/m3 (42) | 42.0 | |
| Feb. 24, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 μg/m3 (25) | 5.0 μg/m3 (21) | 25.0 | |
| Feb. 24, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 ppb (11) | N/A | 18.0 μg/m3 (17) | 7.0 μg/m3 (30) | 30.0 | |
| Feb. 24, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (9) | N/A | 19.0 μg/m3 (18) | 10.0 μg/m3 (42) | 42.0 | |
| Feb. 24, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 ppb (11) | N/A | 22.0 μg/m3 (21) | 6.0 μg/m3 (25) | 25.0 | |
| Feb. 24, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 ppb (11) | N/A | 18.0 μg/m3 (17) | 8.0 μg/m3 (34) | 34.0 | |
| Feb. 24, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 21.0 μg/m3 (20) | 4.0 μg/m3 (17) | 20.0 | |
| Feb. 24, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | N/A | 14.0 μg/m3 (13) | 6.0 μg/m3 (25) | 28.0 | |
| Feb. 24, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 15.0 μg/m3 (14) | 3.0 μg/m3 (13) | 36.0 | |
| Feb. 24, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 12.0 μg/m3 (12) | 1.0 μg/m3 (5) | 41.0 | |
| Feb. 24, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 10.0 μg/m3 (10) | 3.0 μg/m3 (13) | 42.0 | |
| Feb. 23, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 17.0 μg/m3 (16) | 3.0 μg/m3 (13) | 42.0 | |
| Feb. 23, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 3.0 μg/m3 (3) | -2.0 μg/m3 (0) | 42.0 | |
| Feb. 23, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 2.0 μg/m3 (2) | -3.0 μg/m3 (0) | 42.0 | |
| Feb. 23, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 3.0 μg/m3 (3) | -3.0 μg/m3 (0) | 40.0 | |
| Feb. 23, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 1.0 μg/m3 (1) | -2.0 μg/m3 (0) | 40.0 | |
| Feb. 23, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 3.0 μg/m3 (3) | -1.0 μg/m3 (0) | 39.0 | |
| Feb. 23, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | N/A | 7.0 μg/m3 (7) | 0.0 μg/m3 (0) | 35.0 | |
| Feb. 23, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (16) | N/A | 10.0 μg/m3 (10) | 2.0 μg/m3 (9) | 16.0 | |
| Feb. 23, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 17.0 μg/m3 (16) | 4.0 μg/m3 (17) | 17.0 | |
| Feb. 23, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (3) | N/A | 9.0 μg/m3 (9) | 3.0 μg/m3 (13) | 13.0 | |
| Feb. 23, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 ppb (10) | N/A | 3.0 μg/m3 (3) | 3.0 μg/m3 (13) | 13.0 | |
| Feb. 23, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (16) | N/A | 2.0 μg/m3 (2) | 2.0 μg/m3 (9) | 16.0 | |
| Feb. 23, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 0.0 μg/m3 (0) | 0.0 μg/m3 (0) | 17.0 | |
| Feb. 23, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (21) | N/A | 2.0 μg/m3 (2) | 0.0 μg/m3 (0) | 21.0 | |
| Feb. 23, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (5) | 2.0 μg/m3 (9) | 9.0 | |
| Feb. 23, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (30) | N/A | 7.0 μg/m3 (7) | 4.0 μg/m3 (17) | 30.0 | |
| Feb. 23, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (32) | N/A | 11.0 μg/m3 (11) | 1.0 μg/m3 (5) | 32.0 | |
| Feb. 23, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 7.0 μg/m3 (7) | 1.0 μg/m3 (5) | 34.0 | |
| Feb. 23, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 5.0 μg/m3 (5) | 3.0 μg/m3 (13) | 34.0 | |
| Feb. 23, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 5.0 μg/m3 (5) | 1.0 μg/m3 (5) | 38.0 | |
| Feb. 23, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 7.0 μg/m3 (7) | -1.0 μg/m3 (0) | 39.0 | |
| Feb. 23, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 4.0 μg/m3 (4) | -1.0 μg/m3 (0) | 40.0 | |
| Feb. 23, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 3.0 μg/m3 (3) | -3.0 μg/m3 (0) | 40.0 | |
| Feb. 23, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 5.0 μg/m3 (5) | -1.0 μg/m3 (0) | 40.0 | |
| Feb. 22, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 9.0 μg/m3 (9) | 0.0 μg/m3 (0) | 41.0 | |
| Feb. 22, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 10.0 μg/m3 (10) | -1.0 μg/m3 (0) | 40.0 | |
| Feb. 22, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 7.0 μg/m3 (7) | -1.0 μg/m3 (0) | 40.0 | |
| Feb. 22, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 10.0 μg/m3 (10) | 1.0 μg/m3 (5) | 39.0 | |
| Feb. 22, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 17.0 μg/m3 (16) | 0.0 μg/m3 (0) | 39.0 | |
| Feb. 22, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 16.0 μg/m3 (15) | -3.0 μg/m3 (0) | 39.0 | |
| Feb. 22, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 15.0 μg/m3 (14) | -2.0 μg/m3 (0) | 39.0 | |
| Feb. 22, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 8.0 μg/m3 (8) | -2.0 μg/m3 (0) | 38.0 | |
| Feb. 22, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 6.0 μg/m3 (6) | -2.0 μg/m3 (0) | 38.0 | |
| Feb. 22, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 4.0 μg/m3 (4) | -1.0 μg/m3 (0) | 39.0 | |
| Feb. 22, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 5.0 μg/m3 (5) | -1.0 μg/m3 (0) | 39.0 | |
| Feb. 22, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 5.0 μg/m3 (5) | -2.0 μg/m3 (0) | 40.0 | |
| Feb. 22, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 7.0 μg/m3 (7) | -1.0 μg/m3 (0) | 40.0 | |
| Feb. 22, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 5.0 μg/m3 (5) | 2.0 μg/m3 (9) | 41.0 | |
| Feb. 22, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (5) | 2.0 μg/m3 (9) | 9.0 | |
| Feb. 22, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 7.0 μg/m3 (7) | 1.0 μg/m3 (5) | 42.0 | |
| Feb. 22, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 6.0 μg/m3 (6) | 3.0 μg/m3 (13) | 43.0 | |
| Feb. 22, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 5.0 μg/m3 (5) | 3.0 μg/m3 (13) | 43.0 | |
| Feb. 22, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 5.0 μg/m3 (5) | 4.0 μg/m3 (17) | 43.0 | |
| Feb. 22, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 6.0 μg/m3 (6) | 2.0 μg/m3 (9) | 43.0 | |
| Feb. 22, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 6.0 μg/m3 (6) | 1.0 μg/m3 (5) | 42.0 | |
| Feb. 22, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 5.0 μg/m3 (5) | 0.0 μg/m3 (0) | 42.0 | |
| Feb. 22, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 6.0 μg/m3 (6) | -1.0 μg/m3 (0) | 41.0 | |
| Feb. 22, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 5.0 μg/m3 (5) | 0.0 μg/m3 (0) | 42.0 | |
| Feb. 21, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 4.0 μg/m3 (4) | 0.0 μg/m3 (0) | 43.0 | |
| Feb. 21, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 6.0 μg/m3 (6) | -1.0 μg/m3 (0) | 43.0 | |
| Feb. 21, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 9.0 μg/m3 (9) | 1.0 μg/m3 (5) | 43.0 | |
| Feb. 21, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 13.0 μg/m3 (13) | 2.0 μg/m3 (9) | 42.0 | |
| Feb. 21, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 16.0 μg/m3 (15) | 2.0 μg/m3 (9) | 41.0 | |
| Feb. 21, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 9.0 μg/m3 (9) | 0.0 μg/m3 (0) | 41.0 | |
| Feb. 21, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 8.0 μg/m3 (8) | -2.0 μg/m3 (0) | 40.0 | |
| Feb. 21, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 11.0 μg/m3 (11) | 1.0 μg/m3 (5) | 39.0 | |
| Feb. 21, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 15.0 μg/m3 (14) | 4.0 μg/m3 (17) | 38.0 | |
| Feb. 21, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 7.0 μg/m3 (7) | 4.0 μg/m3 (17) | 38.0 | |
| Feb. 21, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 10.0 μg/m3 (10) | 5.0 μg/m3 (21) | 38.0 | |
| Feb. 21, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 9.0 μg/m3 (9) | 5.0 μg/m3 (21) | 39.0 | |
| Feb. 21, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 11.0 μg/m3 (11) | 8.0 μg/m3 (34) | 38.0 | |
| Feb. 21, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 9.0 μg/m3 (9) | 7.0 μg/m3 (30) | 38.0 | |
| Feb. 21, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 μg/m3 (11) | 3.0 μg/m3 (13) | 13.0 | |
| Feb. 21, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 12.0 μg/m3 (12) | -1.0 μg/m3 (0) | 38.0 | |
| Feb. 21, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 15.0 μg/m3 (14) | 3.0 μg/m3 (13) | 38.0 | |
| Feb. 21, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 15.0 μg/m3 (14) | 4.0 μg/m3 (17) | 39.0 |