San Luis Obispo (S Higuera St) CA, US: 35.25651, -120.6693
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sept. 29, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | N/A | 1.5 μg/m3 (1) | 1.0 μg/m3 (4) | 17.0 | |
| Sept. 29, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | N/A | 3.6 μg/m3 (3) | 1.0 μg/m3 (4) | 17.0 | |
| Sept. 29, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | 4.5 μg/m3 (4) | 2.0 μg/m3 (8) | 18.0 | |
| Sept. 29, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | 3.1 μg/m3 (3) | 3.0 μg/m3 (12) | 22.0 | |
| Sept. 29, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | 3.6 μg/m3 (3) | 1.0 μg/m3 (4) | 24.0 | |
| Sept. 29, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 5.1 μg/m3 (5) | 4.0 μg/m3 (17) | 25.0 | |
| Sept. 29, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 6.4 μg/m3 (6) | 5.0 μg/m3 (21) | 27.0 | |
| Sept. 29, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | 7.3 μg/m3 (7) | 4.0 μg/m3 (17) | 28.0 | |
| Sept. 29, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 8.5 μg/m3 (8) | 5.0 μg/m3 (21) | 28.0 | |
| Sept. 29, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | 10.9 μg/m3 (10) | 5.0 μg/m3 (21) | 29.0 | |
| Sept. 28, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 17.8 μg/m3 (16) | 2.0 μg/m3 (8) | 30.0 | |
| Sept. 28, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 14.6 μg/m3 (13) | 1.0 μg/m3 (4) | 31.0 | |
| Sept. 28, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 11.4 μg/m3 (10) | 1.0 μg/m3 (4) | 31.0 | |
| Sept. 28, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | 13.8 μg/m3 (13) | 4.0 μg/m3 (17) | 29.0 | |
| Sept. 28, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | 11.1 μg/m3 (10) | 5.0 μg/m3 (21) | 28.0 | |
| Sept. 28, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (22) | N/A | 17.0 μg/m3 (15) | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 28, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | 16.6 μg/m3 (15) | 4.0 μg/m3 (17) | 18.0 | |
| Sept. 28, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | N/A | 14.6 μg/m3 (13) | 4.0 μg/m3 (17) | 17.0 | |
| Sept. 28, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | N/A | 9.2 μg/m3 (8) | 2.0 μg/m3 (8) | 16.0 | |
| Sept. 28, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (22) | N/A | 3.1 μg/m3 (3) | 3.0 μg/m3 (12) | 22.0 | |
| Sept. 28, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | 2.3 μg/m3 (2) | 1.0 μg/m3 (4) | 24.0 | |
| Sept. 28, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.3 μg/m3 (5) | 1.0 μg/m3 (4) | 5.0 | |
| Sept. 28, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | 5.4 μg/m3 (5) | 2.0 μg/m3 (8) | 29.0 | |
| Sept. 28, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | 4.3 μg/m3 (4) | 4.0 μg/m3 (17) | 29.0 | |
| Sept. 28, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 3.2 μg/m3 (3) | 7.0 μg/m3 (29) | 29.0 | |
| Sept. 28, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 5.5 μg/m3 (5) | 8.0 μg/m3 (33) | 33.0 | |
| Sept. 28, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (22) | N/A | 7.9 μg/m3 (7) | 7.0 μg/m3 (29) | 29.0 | |
| Sept. 28, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | 13.2 μg/m3 (12) | 7.0 μg/m3 (29) | 29.0 | |
| Sept. 28, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 9.9 μg/m3 (9) | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 28, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 9.0 μg/m3 (8) | 8.0 μg/m3 (33) | 33.0 | |
| Sept. 28, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 17.4 μg/m3 (16) | 7.0 μg/m3 (29) | 29.0 | |
| Sept. 28, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | 10.6 μg/m3 (10) | 5.0 μg/m3 (21) | 32.0 | |
| Sept. 28, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | N/A | 9.8 μg/m3 (9) | 7.0 μg/m3 (29) | 34.0 | |
| Sept. 28, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | N/A | 18.0 μg/m3 (16) | 11.0 μg/m3 (46) | 46.0 | |
| Sept. 27, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | N/A | 21.3 μg/m3 (19) | 13.0 μg/m3 (52) | 52.0 | |
| Sept. 27, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | N/A | 22.4 μg/m3 (20) | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 27, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 20.3 μg/m3 (18) | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 27, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 20.0 μg/m3 (18) | 6.0 μg/m3 (25) | 28.0 | |
| Sept. 27, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 16.0 μg/m3 (15) | 8.0 μg/m3 (33) | 33.0 | |
| Sept. 27, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | 35.0 μg/m3 (32) | 13.0 μg/m3 (52) | 52.0 | |
| Sept. 27, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | 34.2 μg/m3 (31) | 16.0 μg/m3 (59) | 59.0 | |
| Sept. 27, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | N/A | 38.4 μg/m3 (35) | 12.0 μg/m3 (50) | 50.0 | |
| Sept. 27, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | 41.8 μg/m3 (38) | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 27, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | 32.5 μg/m3 (30) | 13.0 μg/m3 (52) | 52.0 | |
| Sept. 27, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | 38.3 μg/m3 (35) | 14.0 μg/m3 (54) | 54.0 | |
| Sept. 27, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 30.7 μg/m3 (28) | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 27, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (22) | N/A | 41.5 μg/m3 (38) | 18.0 μg/m3 (63) | 63.0 | |
| Sept. 27, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | N/A | 41.0 μg/m3 (37) | 16.0 μg/m3 (59) | 59.0 | |
| Sept. 27, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | 43.6 μg/m3 (40) | 18.0 μg/m3 (63) | 63.0 | |
| Sept. 27, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | N/A | 43.0 μg/m3 (39) | 13.0 μg/m3 (52) | 52.0 | |
| Sept. 27, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (12) | N/A | 32.4 μg/m3 (29) | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 27, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | N/A | 48.7 μg/m3 (44) | 20.0 μg/m3 (67) | 67.0 | |
| Sept. 27, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | N/A | 33.1 μg/m3 (30) | 13.0 μg/m3 (52) | 52.0 | |
| Sept. 27, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | N/A | 29.6 μg/m3 (27) | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 27, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | N/A | 28.0 μg/m3 (25) | 7.0 μg/m3 (29) | 29.0 | |
| Sept. 27, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | 32.3 μg/m3 (29) | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 27, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | 20.7 μg/m3 (19) | N/A | 22.0 | |
| Sept. 27, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 17.6 μg/m3 (16) | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 26, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | 22.2 μg/m3 (20) | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 26, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 29.5 μg/m3 (27) | 6.0 μg/m3 (25) | 27.0 | |
| Sept. 26, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | 31.4 μg/m3 (29) | 8.0 μg/m3 (33) | 33.0 | |
| Sept. 26, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | 37.1 μg/m3 (34) | 8.0 μg/m3 (33) | 34.0 | |
| Sept. 26, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | 32.4 μg/m3 (29) | 8.0 μg/m3 (33) | 33.0 | |
| Sept. 26, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | N/A | 30.3 μg/m3 (28) | 12.0 μg/m3 (50) | 50.0 | |
| Sept. 26, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | N/A | 34.1 μg/m3 (31) | 11.0 μg/m3 (46) | 46.0 | |
| Sept. 26, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | N/A | 33.7 μg/m3 (31) | 12.0 μg/m3 (50) | 50.0 | |
| Sept. 26, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | 34.5 μg/m3 (31) | 12.0 μg/m3 (50) | 50.0 | |
| Sept. 26, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | 45.2 μg/m3 (41) | 18.0 μg/m3 (63) | 63.0 | |
| Sept. 26, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 29.0 μg/m3 (26) | 14.0 μg/m3 (54) | 54.0 | |
| Sept. 26, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 28.7 μg/m3 (26) | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 26, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 30.5 μg/m3 (28) | 11.0 μg/m3 (46) | 46.0 | |
| Sept. 26, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | 36.8 μg/m3 (33) | 11.0 μg/m3 (46) | 46.0 | |
| Sept. 26, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | 28.1 μg/m3 (26) | 14.0 μg/m3 (54) | 54.0 | |
| Sept. 26, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | N/A | 25.1 μg/m3 (23) | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 26, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | N/A | 21.9 μg/m3 (20) | 7.0 μg/m3 (29) | 29.0 | |
| Sept. 26, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | N/A | 26.5 μg/m3 (24) | 4.0 μg/m3 (17) | 24.0 | |
| Sept. 26, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | N/A | 33.0 μg/m3 (30) | 6.0 μg/m3 (25) | 30.0 | |
| Sept. 26, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 32.1 μg/m3 (29) | N/A | 29.0 | |
| Sept. 26, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 30.9 μg/m3 (28) | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 26, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 26.9 μg/m3 (24) | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 26, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 30.0 μg/m3 (27) | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 26, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 29.1 μg/m3 (26) | 8.0 μg/m3 (33) | 33.0 | |
| Sept. 25, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 30.8 μg/m3 (28) | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 25, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 33.0 μg/m3 (30) | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 25, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 30.4 μg/m3 (28) | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 25, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 42.0 μg/m3 (38) | 8.0 μg/m3 (33) | 38.0 | |
| Sept. 25, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 36.6 μg/m3 (33) | 11.0 μg/m3 (46) | 46.0 | |
| Sept. 25, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 35.0 μg/m3 (32) | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 25, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 35.8 μg/m3 (33) | 12.0 μg/m3 (50) | 50.0 | |
| Sept. 25, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | 37.3 μg/m3 (34) | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 25, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 19.9 μg/m3 (18) | 7.0 μg/m3 (29) | 29.0 | |
| Sept. 25, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 33.2 μg/m3 (30) | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 25, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 32.4 μg/m3 (29) | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 25, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 24.9 μg/m3 (23) | 11.0 μg/m3 (46) | 46.0 | |
| Sept. 25, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | 31.8 μg/m3 (29) | 14.0 μg/m3 (54) | 54.0 | |
| Sept. 25, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | 35.5 μg/m3 (32) | 14.0 μg/m3 (54) | 54.0 | |
| Sept. 25, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | 38.7 μg/m3 (35) | 7.0 μg/m3 (29) | 35.0 | |
| Sept. 25, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | 29.8 μg/m3 (27) | 5.0 μg/m3 (21) | 27.0 | |
| Sept. 25, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | 26.0 μg/m3 (24) | 3.0 μg/m3 (12) | 24.0 | |
| Sept. 25, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | 16.1 μg/m3 (15) | 3.0 μg/m3 (12) | 18.0 | |
| Sept. 25, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | N/A | 16.5 μg/m3 (15) | 4.0 μg/m3 (17) | 17.0 | |
| Sept. 25, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | 17.3 μg/m3 (16) | 5.0 μg/m3 (21) | 21.0 | |
| Sept. 25, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | 14.1 μg/m3 (13) | 3.0 μg/m3 (12) | 18.0 | |
| Sept. 25, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | 13.7 μg/m3 (12) | 1.0 μg/m3 (4) | 18.0 | |
| Sept. 25, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | 20.3 μg/m3 (18) | 1.0 μg/m3 (4) | 18.0 | |
| Sept. 25, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | 13.5 μg/m3 (12) | 1.0 μg/m3 (4) | 18.0 | |
| Sept. 24, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | 14.5 μg/m3 (13) | 3.0 μg/m3 (12) | 18.0 | |
| Sept. 24, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | 21.5 μg/m3 (20) | 2.0 μg/m3 (8) | 20.0 | |
| Sept. 24, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | 24.3 μg/m3 (22) | 2.0 μg/m3 (8) | 22.0 | |
| Sept. 24, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | N/A | 25.8 μg/m3 (23) | 4.0 μg/m3 (17) | 23.0 | |
| Sept. 24, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | 23.1 μg/m3 (21) | 2.0 μg/m3 (8) | 24.0 | |
| Sept. 24, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 21.4 μg/m3 (19) | 2.0 μg/m3 (8) | 27.0 | |
| Sept. 24, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 14.4 μg/m3 (13) | 3.0 μg/m3 (12) | 23.0 | |
| Sept. 24, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | 11.2 μg/m3 (10) | 3.0 μg/m3 (12) | 21.0 | |
| Sept. 24, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | 14.9 μg/m3 (14) | 3.0 μg/m3 (12) | 20.0 | |
| Sept. 24, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | 14.8 μg/m3 (13) | 2.0 μg/m3 (8) | 18.0 | |
| Sept. 24, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | 19.9 μg/m3 (18) | 3.0 μg/m3 (12) | 21.0 | |
| Sept. 24, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 24.8 μg/m3 (23) | 2.0 μg/m3 (8) | 23.0 | |
| Sept. 24, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (22) | N/A | 25.3 μg/m3 (23) | 3.0 μg/m3 (12) | 23.0 | |
| Sept. 24, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | 26.0 μg/m3 (24) | 4.0 μg/m3 (17) | 24.0 | |
| Sept. 24, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | N/A | 22.0 μg/m3 (20) | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 24, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | N/A | 26.0 μg/m3 (24) | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 24, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (12) | N/A | 18.0 μg/m3 (16) | 4.0 μg/m3 (17) | 17.0 | |
| Sept. 24, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | N/A | 14.0 μg/m3 (13) | 4.0 μg/m3 (17) | 17.0 | |
| Sept. 24, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (15) | N/A | 24.0 μg/m3 (22) | 4.0 μg/m3 (17) | 22.0 | |
| Sept. 24, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | N/A | 19.0 μg/m3 (17) | 5.0 μg/m3 (21) | 21.0 | |
| Sept. 24, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | 15.0 μg/m3 (14) | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 24, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 18.0 μg/m3 (16) | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 24, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 23.0 μg/m3 (21) | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 24, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 24.0 μg/m3 (22) | 11.0 μg/m3 (46) | 46.0 | |
| Sept. 23, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 23.0 μg/m3 (21) | 8.0 μg/m3 (33) | 33.0 | |
| Sept. 23, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | 19.0 μg/m3 (17) | 3.0 μg/m3 (12) | 32.0 | |
| Sept. 23, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | 25.0 μg/m3 (23) | 5.0 μg/m3 (21) | 32.0 | |
| Sept. 23, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 23.0 μg/m3 (21) | 7.0 μg/m3 (29) | 29.0 | |
| Sept. 23, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 27.0 μg/m3 (25) | 6.0 μg/m3 (25) | 27.0 | |
| Sept. 23, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | 23.0 μg/m3 (21) | 5.0 μg/m3 (21) | 25.0 | |
| Sept. 23, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | N/A | 28.0 μg/m3 (25) | 4.0 μg/m3 (17) | 25.0 | |
| Sept. 23, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (12) | N/A | 29.0 μg/m3 (26) | 5.0 μg/m3 (21) | 26.0 | |
| Sept. 23, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 ppb (5) | N/A | 39.0 μg/m3 (35) | N/A | 35.0 | |
| Sept. 23, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 57.0 μg/m3 (51) | 4.0 μg/m3 (17) | 51.0 | |
| Sept. 23, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | 18.0 μg/m3 (16) | 4.0 μg/m3 (17) | 17.0 | |
| Sept. 23, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (5) | 4.0 μg/m3 (17) | 17.0 | |
| Sept. 23, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (4) | N/A | 8.0 μg/m3 (7) | 2.0 μg/m3 (8) | 8.0 | |
| Sept. 23, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | N/A | 6.0 μg/m3 (5) | 3.0 μg/m3 (12) | 12.0 | |
| Sept. 23, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 ppb (8) | N/A | 6.0 μg/m3 (5) | 3.0 μg/m3 (12) | 12.0 | |
| Sept. 23, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 ppb (8) | N/A | 3.0 μg/m3 (3) | 4.0 μg/m3 (17) | 17.0 | |
| Sept. 23, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 ppb (10) | N/A | 4.0 μg/m3 (4) | 3.0 μg/m3 (12) | 12.0 | |
| Sept. 23, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (12) | N/A | 6.0 μg/m3 (5) | 3.0 μg/m3 (12) | 12.0 | |
| Sept. 23, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 ppb (11) | N/A | 9.0 μg/m3 (8) | 4.0 μg/m3 (17) | 17.0 | |
| Sept. 23, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (13) | N/A | 10.0 μg/m3 (9) | 4.0 μg/m3 (17) | 17.0 | |
| Sept. 23, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | N/A | 4.0 μg/m3 (4) | 2.0 μg/m3 (8) | 15.0 | |
| Sept. 23, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | 4.0 μg/m3 (4) | 2.0 μg/m3 (8) | 18.0 | |
| Sept. 23, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | 8.0 μg/m3 (7) | 2.0 μg/m3 (8) | 20.0 | |
| Sept. 23, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (22) | N/A | 12.0 μg/m3 (11) | 1.0 μg/m3 (4) | 22.0 | |
| Sept. 22, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 13.0 μg/m3 (12) | 2.0 μg/m3 (8) | 23.0 | |
| Sept. 22, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | 17.0 μg/m3 (15) | 5.0 μg/m3 (21) | 24.0 | |
| Sept. 22, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | 10.0 μg/m3 (9) | 5.0 μg/m3 (21) | 25.0 | |
| Sept. 22, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | 11.0 μg/m3 (10) | 2.0 μg/m3 (8) | 24.0 | |
| Sept. 22, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 10.0 μg/m3 (9) | 2.0 μg/m3 (8) | 23.0 | |
| Sept. 22, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | 18.0 μg/m3 (16) | 4.0 μg/m3 (17) | 18.0 | |
| Sept. 22, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | N/A | 7.0 μg/m3 (6) | 7.0 μg/m3 (29) | 29.0 | |
| Sept. 22, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 ppb (11) | N/A | 9.0 μg/m3 (8) | 5.0 μg/m3 (21) | 21.0 | |
| Sept. 22, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 ppb (11) | N/A | 11.0 μg/m3 (10) | 5.0 μg/m3 (21) | 21.0 | |
| Sept. 22, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (13) | N/A | 10.0 μg/m3 (9) | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 22, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (13) | N/A | 7.0 μg/m3 (6) | 5.0 μg/m3 (21) | 21.0 | |
| Sept. 22, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 μg/m3 (7) | 7.0 μg/m3 (29) | 29.0 | |
| Sept. 22, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | N/A | 10.0 μg/m3 (9) | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 22, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | N/A | 7.0 μg/m3 (6) | 8.0 μg/m3 (33) | 33.0 |