Williams Lake (Williams Lake Riv Valley Trl) CC, CA: 52.1342, -122.1528
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 2, 2020, 6 a.m. | N/A | 30.8 ppb (30) | N/A | 12.0 ppb (12) | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 10.6 μg/m3 (45) | 45.0 | |
| Dec. 2, 2020, 5 a.m. | N/A | 37.5 ppb (36) | N/A | 15.0 ppb (15) | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 12.4 μg/m3 (52) | 52.0 | |
| Dec. 2, 2020, 4 a.m. | N/A | 38.5 ppb (37) | N/A | 17.0 ppb (17) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 16.8 μg/m3 (61) | 61.0 | |
| Dec. 2, 2020, 3 a.m. | N/A | 37.9 ppb (36) | N/A | 18.0 ppb (17) | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 18.3 μg/m3 (65) | 65.0 | |
| Dec. 2, 2020, 2 a.m. | N/A | 38.2 ppb (37) | N/A | 19.0 ppb (18) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 21.6 μg/m3 (71) | 71.0 | |
| Dec. 2, 2020, 1 a.m. | N/A | 34.3 ppb (33) | N/A | 19.0 ppb (18) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 15.4 μg/m3 (58) | 58.0 | |
| Dec. 2, 2020, midnight | N/A | 30.6 ppb (29) | N/A | 19.0 ppb (18) | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 15.4 μg/m3 (58) | 58.0 | |
| Dec. 1, 2020, 11 p.m. | N/A | 26.7 ppb (26) | N/A | 14.0 ppb (14) | N/A | N/A | 11.0 ppb (11) | N/A | N/A | 12.3 μg/m3 (52) | 52.0 | |
| Dec. 1, 2020, 10 p.m. | N/A | 26.4 ppb (25) | N/A | 9.0 ppb (9) | N/A | N/A | 20.0 ppb (19) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Dec. 1, 2020, 9 p.m. | N/A | 27.5 ppb (26) | N/A | 8.0 ppb (8) | N/A | N/A | 20.0 ppb (19) | N/A | N/A | 3.6 μg/m3 (16) | 26.0 | |
| Dec. 1, 2020, 8 p.m. | N/A | 27.7 ppb (27) | N/A | 9.0 ppb (9) | N/A | N/A | 18.0 ppb (17) | N/A | N/A | 3.1 μg/m3 (13) | 27.0 | |
| Dec. 1, 2020, 7 p.m. | N/A | 27.0 ppb (26) | N/A | 8.0 ppb (8) | N/A | N/A | 16.0 ppb (15) | N/A | N/A | 3.3 μg/m3 (14) | 26.0 | |
| Dec. 1, 2020, 6 p.m. | N/A | 26.3 ppb (25) | N/A | 8.0 ppb (8) | N/A | N/A | 14.0 ppb (13) | N/A | N/A | 1.7 μg/m3 (8) | 25.0 | |
| Dec. 1, 2020, 5 p.m. | N/A | 28.4 ppb (27) | N/A | 11.0 ppb (11) | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 2.7 μg/m3 (12) | 27.0 | |
| Dec. 1, 2020, 4 p.m. | N/A | 28.4 ppb (27) | N/A | 13.0 ppb (13) | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 7.2 μg/m3 (31) | 31.0 | |
| Dec. 1, 2020, 3 p.m. | N/A | 31.4 ppb (30) | N/A | 16.0 ppb (16) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 4.5 μg/m3 (19) | 30.0 | |
| Dec. 1, 2020, 2 p.m. | N/A | 26.8 ppb (26) | N/A | 16.0 ppb (16) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 4.0 μg/m3 (17) | 26.0 | |
| Dec. 1, 2020, 1 p.m. | N/A | 21.1 ppb (20) | N/A | 13.0 ppb (13) | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 3.3 μg/m3 (14) | 20.0 | |
| Dec. 1, 2020, noon | N/A | 19.4 ppb (19) | N/A | 12.0 ppb (12) | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 4.2 μg/m3 (18) | 19.0 | |
| Dec. 1, 2020, 11 a.m. | N/A | 18.2 ppb (18) | N/A | 12.0 ppb (12) | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 4.7 μg/m3 (20) | 20.0 | |
| Dec. 1, 2020, 10 a.m. | N/A | 18.2 ppb (18) | N/A | 14.0 ppb (14) | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Dec. 1, 2020, 9 a.m. | N/A | 17.0 ppb (17) | N/A | 13.0 ppb (13) | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 7.2 μg/m3 (31) | 31.0 | |
| Dec. 1, 2020, 8 a.m. | N/A | 17.1 ppb (17) | N/A | 13.0 ppb (13) | N/A | N/A | 11.0 ppb (11) | N/A | N/A | 8.9 μg/m3 (38) | 38.0 | |
| Dec. 1, 2020, 7 a.m. | N/A | 17.2 ppb (17) | N/A | 11.0 ppb (11) | N/A | N/A | 18.0 ppb (17) | N/A | N/A | 1.9 μg/m3 (8) | 17.0 | |
| Dec. 1, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.5 μg/m3 (11) | 11.0 | |
| Dec. 1, 2020, 5 a.m. | N/A | 16.8 ppb (16) | N/A | 11.0 ppb (11) | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 5.6 μg/m3 (24) | 24.0 | |
| Dec. 1, 2020, 4 a.m. | N/A | 17.5 ppb (17) | N/A | 11.0 ppb (11) | N/A | N/A | 22.0 ppb (21) | N/A | N/A | 2.4 μg/m3 (10) | 21.0 | |
| Dec. 1, 2020, 3 a.m. | N/A | 18.1 ppb (18) | N/A | 11.0 ppb (11) | N/A | N/A | 23.0 ppb (22) | N/A | N/A | 3.8 μg/m3 (16) | 22.0 | |
| Dec. 1, 2020, 2 a.m. | N/A | 18.9 ppb (18) | N/A | 10.0 ppb (10) | N/A | N/A | 27.0 ppb (25) | N/A | N/A | 5.4 μg/m3 (23) | 25.0 | |
| Dec. 1, 2020, 1 a.m. | N/A | 20.8 ppb (20) | N/A | 9.0 ppb (9) | N/A | N/A | 28.0 ppb (26) | N/A | N/A | 2.7 μg/m3 (12) | 26.0 | |
| Dec. 1, 2020, midnight | N/A | 22.0 ppb (21) | N/A | 9.0 ppb (9) | N/A | N/A | 31.0 ppb (29) | N/A | N/A | 2.3 μg/m3 (10) | 29.0 | |
| Nov. 30, 2020, 11 p.m. | N/A | 23.5 ppb (23) | N/A | 8.0 ppb (8) | N/A | N/A | 32.0 ppb (30) | N/A | N/A | 3.7 μg/m3 (16) | 30.0 | |
| Nov. 30, 2020, 10 p.m. | N/A | 25.8 ppb (25) | N/A | 8.0 ppb (8) | N/A | N/A | 33.0 ppb (31) | N/A | N/A | 1.5 μg/m3 (7) | 31.0 | |
| Nov. 30, 2020, 9 p.m. | N/A | 25.2 ppb (24) | N/A | 8.0 ppb (8) | N/A | N/A | 31.0 ppb (29) | N/A | N/A | 2.7 μg/m3 (12) | 29.0 | |
| Nov. 30, 2020, 8 p.m. | N/A | 24.0 ppb (23) | N/A | 10.0 ppb (10) | N/A | N/A | 26.0 ppb (25) | N/A | N/A | 5.3 μg/m3 (23) | 25.0 | |
| Nov. 30, 2020, 7 p.m. | N/A | 21.0 ppb (20) | N/A | 9.0 ppb (9) | N/A | N/A | 28.0 ppb (26) | N/A | N/A | 1.7 μg/m3 (8) | 26.0 | |
| Nov. 30, 2020, 6 p.m. | N/A | 16.9 ppb (16) | N/A | 13.0 ppb (13) | N/A | N/A | 20.0 ppb (19) | N/A | N/A | 3.7 μg/m3 (16) | 19.0 | |
| Nov. 30, 2020, 5 p.m. | N/A | 12.4 ppb (12) | N/A | 11.0 ppb (11) | N/A | N/A | 25.0 ppb (24) | N/A | N/A | 2.6 μg/m3 (11) | 24.0 | |
| Nov. 30, 2020, 4 p.m. | N/A | 8.9 ppb (9) | N/A | 12.0 ppb (12) | N/A | N/A | 26.0 ppb (25) | N/A | N/A | 1.8 μg/m3 (8) | 25.0 | |
| Nov. 30, 2020, 3 p.m. | N/A | 5.7 ppb (6) | N/A | 11.0 ppb (11) | N/A | N/A | 31.0 ppb (29) | N/A | N/A | 0.7 μg/m3 (3) | 29.0 | |
| Nov. 30, 2020, 2 p.m. | N/A | 5.2 ppb (5) | N/A | 12.0 ppb (12) | N/A | N/A | 32.0 ppb (30) | N/A | N/A | 0.5 μg/m3 (3) | 30.0 | |
| Nov. 30, 2020, 1 p.m. | N/A | 5.0 ppb (5) | N/A | 12.0 ppb (12) | N/A | N/A | 32.0 ppb (30) | N/A | N/A | 0.5 μg/m3 (3) | 30.0 | |
| Nov. 30, 2020, noon | N/A | 5.0 ppb (5) | N/A | 11.0 ppb (11) | N/A | N/A | 32.0 ppb (30) | N/A | N/A | 0.6 μg/m3 (3) | 30.0 | |
| Nov. 30, 2020, 11 a.m. | N/A | 4.5 ppb (5) | N/A | 11.0 ppb (11) | N/A | N/A | 32.0 ppb (30) | N/A | N/A | 0.6 μg/m3 (3) | 30.0 | |
| Nov. 30, 2020, 10 a.m. | N/A | 4.1 ppb (4) | N/A | 11.0 ppb (11) | N/A | N/A | 32.0 ppb (30) | N/A | N/A | 0.6 μg/m3 (3) | 30.0 | |
| Nov. 30, 2020, 9 a.m. | N/A | 4.4 ppb (5) | N/A | 12.0 ppb (12) | N/A | N/A | 31.0 ppb (29) | N/A | N/A | 0.7 μg/m3 (3) | 29.0 | |
| Nov. 30, 2020, 8 a.m. | N/A | 4.9 ppb (5) | N/A | 11.0 ppb (11) | N/A | N/A | 31.0 ppb (29) | N/A | N/A | 0.8 μg/m3 (4) | 29.0 | |
| Nov. 30, 2020, 7 a.m. | N/A | 5.8 ppb (6) | N/A | 11.0 ppb (11) | N/A | N/A | 30.0 ppb (28) | N/A | N/A | 0.9 μg/m3 (4) | 28.0 | |
| Nov. 30, 2020, 6 a.m. | N/A | 5.7 ppb (6) | N/A | 10.0 ppb (10) | N/A | N/A | 31.0 ppb (29) | N/A | N/A | 0.8 μg/m3 (4) | 29.0 | |
| Nov. 30, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.8 μg/m3 (4) | 4.0 | |
| Nov. 30, 2020, 4 a.m. | N/A | 5.6 ppb (6) | N/A | 11.0 ppb (11) | N/A | N/A | 30.0 ppb (28) | N/A | N/A | 1.1 μg/m3 (5) | 28.0 | |
| Nov. 30, 2020, 3 a.m. | N/A | 4.9 ppb (5) | N/A | 10.0 ppb (10) | N/A | N/A | 30.0 ppb (28) | N/A | N/A | 1.5 μg/m3 (7) | 28.0 | |
| Nov. 30, 2020, 2 a.m. | N/A | 4.2 ppb (4) | N/A | 11.0 ppb (11) | N/A | N/A | 30.0 ppb (28) | N/A | N/A | 1.0 μg/m3 (5) | 28.0 | |
| Nov. 30, 2020, 1 a.m. | N/A | 4.4 ppb (5) | N/A | 11.0 ppb (11) | N/A | N/A | 30.0 ppb (28) | N/A | N/A | 1.0 μg/m3 (5) | 28.0 | |
| Nov. 30, 2020, midnight | N/A | 5.2 ppb (5) | N/A | 12.0 ppb (12) | N/A | N/A | 30.0 ppb (28) | N/A | N/A | 1.0 μg/m3 (5) | 28.0 | |
| Nov. 29, 2020, 11 p.m. | N/A | 6.8 ppb (7) | N/A | 11.0 ppb (11) | N/A | N/A | 30.0 ppb (28) | N/A | N/A | 2.4 μg/m3 (10) | 28.0 | |
| Nov. 29, 2020, 10 p.m. | N/A | 6.7 ppb (7) | N/A | 11.0 ppb (11) | N/A | N/A | 30.0 ppb (28) | N/A | N/A | 1.5 μg/m3 (7) | 28.0 | |
| Nov. 29, 2020, 9 p.m. | N/A | 7.1 ppb (7) | N/A | 11.0 ppb (11) | N/A | N/A | 30.0 ppb (28) | N/A | N/A | 1.4 μg/m3 (6) | 28.0 | |
| Nov. 29, 2020, 8 p.m. | N/A | 7.4 ppb (7) | N/A | 11.0 ppb (11) | N/A | N/A | 30.0 ppb (28) | N/A | N/A | 0.8 μg/m3 (4) | 28.0 | |
| Nov. 29, 2020, 7 p.m. | N/A | 9.2 ppb (9) | N/A | 11.0 ppb (11) | N/A | N/A | 30.0 ppb (28) | N/A | N/A | 1.4 μg/m3 (6) | 28.0 | |
| Nov. 29, 2020, 6 p.m. | N/A | 10.4 ppb (10) | N/A | 10.0 ppb (10) | N/A | N/A | 29.0 ppb (27) | N/A | N/A | 0.9 μg/m3 (4) | 27.0 | |
| Nov. 29, 2020, 5 p.m. | N/A | 11.6 ppb (11) | N/A | 11.0 ppb (11) | N/A | N/A | 29.0 ppb (27) | N/A | N/A | 0.7 μg/m3 (3) | 27.0 | |
| Nov. 29, 2020, 4 p.m. | N/A | 16.4 ppb (16) | N/A | 10.0 ppb (10) | N/A | N/A | 29.0 ppb (27) | N/A | N/A | 0.6 μg/m3 (3) | 27.0 | |
| Nov. 29, 2020, 3 p.m. | N/A | 18.9 ppb (18) | N/A | 8.0 ppb (8) | N/A | N/A | 28.0 ppb (26) | N/A | N/A | 0.9 μg/m3 (4) | 26.0 | |
| Nov. 29, 2020, 2 p.m. | N/A | 18.3 ppb (18) | N/A | 8.0 ppb (8) | N/A | N/A | 24.0 ppb (23) | N/A | N/A | 2.3 μg/m3 (10) | 23.0 | |
| Nov. 29, 2020, 1 p.m. | N/A | 22.5 ppb (22) | N/A | 7.0 ppb (7) | N/A | N/A | 29.0 ppb (27) | N/A | N/A | 3.0 μg/m3 (13) | 27.0 | |
| Nov. 29, 2020, noon | N/A | 23.3 ppb (22) | N/A | 7.0 ppb (7) | N/A | N/A | 20.0 ppb (19) | N/A | N/A | 2.9 μg/m3 (13) | 22.0 | |
| Nov. 29, 2020, 11 a.m. | N/A | 22.7 ppb (22) | N/A | 7.0 ppb (7) | N/A | N/A | 16.0 ppb (15) | N/A | N/A | 2.3 μg/m3 (10) | 22.0 | |
| Nov. 29, 2020, 10 a.m. | N/A | 23.8 ppb (23) | N/A | 7.0 ppb (7) | N/A | N/A | 17.0 ppb (16) | N/A | N/A | 3.2 μg/m3 (14) | 23.0 | |
| Nov. 29, 2020, 9 a.m. | N/A | 24.3 ppb (23) | N/A | 6.0 ppb (6) | N/A | N/A | 19.0 ppb (18) | N/A | N/A | 3.9 μg/m3 (17) | 23.0 | |
| Nov. 29, 2020, 8 a.m. | N/A | 25.6 ppb (25) | N/A | 7.0 ppb (7) | N/A | N/A | 17.0 ppb (16) | N/A | N/A | 3.9 μg/m3 (17) | 25.0 | |
| Nov. 29, 2020, 7 a.m. | N/A | 26.1 ppb (25) | N/A | 7.0 ppb (7) | N/A | N/A | 15.0 ppb (14) | N/A | N/A | 3.0 μg/m3 (13) | 25.0 | |
| Nov. 29, 2020, 6 a.m. | N/A | 27.3 ppb (26) | N/A | 7.0 ppb (7) | N/A | N/A | 16.0 ppb (15) | N/A | N/A | 2.5 μg/m3 (11) | 26.0 | |
| Nov. 29, 2020, 5 a.m. | N/A | 28.5 ppb (27) | N/A | 7.0 ppb (7) | N/A | N/A | 12.0 ppb (12) | N/A | N/A | 2.0 μg/m3 (9) | 27.0 | |
| Nov. 29, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.4 μg/m3 (23) | 23.0 | |
| Nov. 29, 2020, 3 a.m. | N/A | 32.6 ppb (31) | N/A | 10.0 ppb (10) | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 24.3 μg/m3 (77) | 77.0 | |
| Nov. 29, 2020, 2 a.m. | N/A | 33.9 ppb (32) | N/A | 12.0 ppb (12) | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 4.2 μg/m3 (18) | 32.0 | |
| Nov. 29, 2020, 1 a.m. | N/A | 36.5 ppb (35) | N/A | 13.0 ppb (13) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 6.0 μg/m3 (25) | 35.0 | |
| Nov. 29, 2020, midnight | N/A | 33.6 ppb (32) | N/A | 11.0 ppb (11) | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 7.4 μg/m3 (31) | 32.0 | |
| Nov. 28, 2020, 11 p.m. | N/A | 34.4 ppb (33) | N/A | 9.0 ppb (9) | N/A | N/A | 8.0 ppb (8) | N/A | N/A | 2.5 μg/m3 (11) | 33.0 | |
| Nov. 28, 2020, 10 p.m. | N/A | 35.1 ppb (34) | N/A | 7.0 ppb (7) | N/A | N/A | 12.0 ppb (12) | N/A | N/A | 1.9 μg/m3 (8) | 34.0 | |
| Nov. 28, 2020, 9 p.m. | N/A | 36.8 ppb (35) | N/A | 7.0 ppb (7) | N/A | N/A | 11.0 ppb (11) | N/A | N/A | 2.7 μg/m3 (12) | 35.0 | |
| Nov. 28, 2020, 8 p.m. | N/A | 36.5 ppb (35) | N/A | 8.0 ppb (8) | N/A | N/A | 8.0 ppb (8) | N/A | N/A | 3.7 μg/m3 (16) | 35.0 | |
| Nov. 28, 2020, 7 p.m. | N/A | 33.5 ppb (32) | N/A | 7.0 ppb (7) | N/A | N/A | 10.0 ppb (10) | N/A | N/A | 3.1 μg/m3 (13) | 32.0 | |
| Nov. 28, 2020, 6 p.m. | N/A | 32.8 ppb (31) | N/A | 6.0 ppb (6) | N/A | N/A | 10.0 ppb (10) | N/A | N/A | 3.8 μg/m3 (16) | 31.0 | |
| Nov. 28, 2020, 5 p.m. | N/A | 34.2 ppb (33) | N/A | 7.0 ppb (7) | N/A | N/A | 8.0 ppb (8) | N/A | N/A | 5.6 μg/m3 (24) | 33.0 | |
| Nov. 28, 2020, 4 p.m. | N/A | 35.0 ppb (34) | N/A | 8.0 ppb (8) | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 7.8 μg/m3 (33) | 34.0 | |
| Nov. 28, 2020, 3 p.m. | N/A | 35.3 ppb (34) | N/A | 10.0 ppb (10) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 8.7 μg/m3 (37) | 37.0 | |
| Nov. 28, 2020, 2 p.m. | N/A | 36.6 ppb (35) | N/A | 10.0 ppb (10) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 8.9 μg/m3 (38) | 38.0 | |
| Nov. 28, 2020, 1 p.m. | N/A | 35.7 ppb (34) | N/A | 10.0 ppb (10) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 15.1 μg/m3 (58) | 58.0 | |
| Nov. 28, 2020, noon | N/A | 33.7 ppb (32) | N/A | 10.0 ppb (10) | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 11.2 μg/m3 (47) | 47.0 | |
| Nov. 28, 2020, 11 a.m. | N/A | 31.5 ppb (30) | N/A | 9.0 ppb (9) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 7.0 μg/m3 (30) | 30.0 | |
| Nov. 28, 2020, 10 a.m. | N/A | 30.8 ppb (30) | N/A | 9.0 ppb (9) | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 8.5 μg/m3 (36) | 36.0 | |
| Nov. 28, 2020, 9 a.m. | N/A | 29.3 ppb (28) | N/A | 9.0 ppb (9) | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 3.2 μg/m3 (14) | 28.0 | |
| Nov. 28, 2020, 8 a.m. | N/A | 28.7 ppb (28) | N/A | 9.0 ppb (9) | N/A | N/A | 11.0 ppb (11) | N/A | N/A | 5.2 μg/m3 (22) | 28.0 | |
| Nov. 28, 2020, 7 a.m. | N/A | 27.7 ppb (27) | N/A | 12.0 ppb (12) | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 7.8 μg/m3 (33) | 33.0 | |
| Nov. 28, 2020, 6 a.m. | N/A | 26.5 ppb (25) | N/A | 12.0 ppb (12) | N/A | N/A | 15.0 ppb (14) | N/A | N/A | 4.7 μg/m3 (20) | 25.0 | |
| Nov. 28, 2020, 5 a.m. | N/A | 26.1 ppb (25) | N/A | 13.0 ppb (13) | N/A | N/A | 14.0 ppb (13) | N/A | N/A | 3.9 μg/m3 (17) | 25.0 | |
| Nov. 28, 2020, 4 a.m. | N/A | 24.5 ppb (24) | N/A | 11.0 ppb (11) | N/A | N/A | 23.0 ppb (22) | N/A | N/A | 0.7 μg/m3 (3) | 24.0 | |
| Nov. 28, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.1 μg/m3 (9) | 9.0 | |
| Nov. 28, 2020, 2 a.m. | N/A | 24.6 ppb (24) | N/A | 16.0 ppb (16) | N/A | N/A | 14.0 ppb (13) | N/A | N/A | 1.9 μg/m3 (8) | 24.0 | |
| Nov. 28, 2020, 1 a.m. | N/A | 22.5 ppb (22) | N/A | 16.0 ppb (16) | N/A | N/A | 18.0 ppb (17) | N/A | N/A | 2.8 μg/m3 (12) | 22.0 | |
| Nov. 28, 2020, midnight | N/A | 22.3 ppb (22) | N/A | 13.0 ppb (13) | N/A | N/A | 29.0 ppb (27) | N/A | N/A | 4.9 μg/m3 (21) | 27.0 | |
| Nov. 27, 2020, 11 p.m. | N/A | 28.3 ppb (27) | N/A | 13.0 ppb (13) | N/A | N/A | 30.0 ppb (28) | N/A | N/A | 1.2 μg/m3 (5) | 28.0 | |
| Nov. 27, 2020, 10 p.m. | N/A | 28.0 ppb (27) | N/A | 11.0 ppb (11) | N/A | N/A | 31.0 ppb (29) | N/A | N/A | 0.8 μg/m3 (4) | 29.0 | |
| Nov. 27, 2020, 9 p.m. | N/A | 33.6 ppb (32) | N/A | 11.0 ppb (11) | N/A | N/A | 30.0 ppb (28) | N/A | N/A | 0.4 μg/m3 (2) | 32.0 | |
| Nov. 27, 2020, 8 p.m. | N/A | 38.6 ppb (37) | N/A | 10.0 ppb (10) | N/A | N/A | 30.0 ppb (28) | N/A | N/A | 0.3 μg/m3 (2) | 37.0 | |
| Nov. 27, 2020, 7 p.m. | N/A | 35.8 ppb (34) | N/A | 10.0 ppb (10) | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 0.6 μg/m3 (3) | 34.0 | |
| Nov. 27, 2020, 6 p.m. | N/A | 36.2 ppb (35) | N/A | 11.0 ppb (11) | N/A | N/A | 18.0 ppb (17) | N/A | N/A | 0.7 μg/m3 (3) | 35.0 | |
| Nov. 27, 2020, 5 p.m. | N/A | 35.9 ppb (34) | N/A | 13.0 ppb (13) | N/A | N/A | 12.0 ppb (12) | N/A | N/A | 2.2 μg/m3 (10) | 34.0 | |
| Nov. 27, 2020, 4 p.m. | N/A | 38.2 ppb (37) | N/A | 14.0 ppb (14) | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 4.6 μg/m3 (20) | 37.0 | |
| Nov. 27, 2020, 3 p.m. | N/A | 32.5 ppb (31) | N/A | 12.0 ppb (12) | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 2.1 μg/m3 (9) | 31.0 | |
| Nov. 27, 2020, 2 p.m. | N/A | 28.6 ppb (27) | N/A | 10.0 ppb (10) | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 0.6 μg/m3 (3) | 27.0 | |
| Nov. 27, 2020, 1 p.m. | N/A | 26.7 ppb (26) | N/A | 8.0 ppb (8) | N/A | N/A | 8.0 ppb (8) | N/A | N/A | 1.0 μg/m3 (5) | 26.0 | |
| Nov. 27, 2020, noon | N/A | 26.3 ppb (25) | N/A | 6.0 ppb (6) | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 1.1 μg/m3 (5) | 25.0 | |
| Nov. 27, 2020, 11 a.m. | N/A | 25.4 ppb (24) | N/A | 7.0 ppb (7) | N/A | N/A | 8.0 ppb (8) | N/A | N/A | 1.1 μg/m3 (5) | 24.0 | |
| Nov. 27, 2020, 10 a.m. | N/A | 24.8 ppb (24) | N/A | 8.0 ppb (8) | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 2.5 μg/m3 (11) | 24.0 | |
| Nov. 27, 2020, 9 a.m. | N/A | 23.7 ppb (23) | N/A | 8.0 ppb (8) | N/A | N/A | 8.0 ppb (8) | N/A | N/A | 3.4 μg/m3 (15) | 23.0 | |
| Nov. 27, 2020, 8 a.m. | N/A | 23.0 ppb (22) | N/A | 7.0 ppb (7) | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 3.2 μg/m3 (14) | 22.0 | |
| Nov. 27, 2020, 7 a.m. | N/A | 21.9 ppb (21) | N/A | 7.0 ppb (7) | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 3.1 μg/m3 (13) | 21.0 | |
| Nov. 27, 2020, 6 a.m. | N/A | 20.8 ppb (20) | N/A | 8.0 ppb (8) | N/A | N/A | 10.0 ppb (10) | N/A | N/A | 4.2 μg/m3 (18) | 20.0 | |
| Nov. 27, 2020, 5 a.m. | N/A | 20.1 ppb (19) | N/A | 7.0 ppb (7) | N/A | N/A | 13.0 ppb (13) | N/A | N/A | 1.9 μg/m3 (8) | 19.0 | |
| Nov. 27, 2020, 4 a.m. | N/A | 19.3 ppb (19) | N/A | 9.0 ppb (9) | N/A | N/A | 12.0 ppb (12) | N/A | N/A | 1.7 μg/m3 (8) | 19.0 | |
| Nov. 27, 2020, 3 a.m. | N/A | 18.4 ppb (18) | N/A | 10.0 ppb (10) | N/A | N/A | 11.0 ppb (11) | N/A | N/A | 2.3 μg/m3 (10) | 18.0 | |
| Nov. 27, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.8 μg/m3 (8) | 8.0 | |
| Nov. 27, 2020, 1 a.m. | N/A | 15.4 ppb (15) | N/A | 9.0 ppb (9) | N/A | N/A | 14.0 ppb (13) | N/A | N/A | 1.3 μg/m3 (6) | 15.0 | |
| Nov. 27, 2020, midnight | N/A | 13.9 ppb (14) | N/A | 8.0 ppb (8) | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 0.4 μg/m3 (2) | 20.0 | |
| Nov. 26, 2020, 11 p.m. | N/A | 14.1 ppb (14) | N/A | 9.0 ppb (9) | N/A | N/A | 22.0 ppb (21) | N/A | N/A | 0.8 μg/m3 (4) | 21.0 | |
| Nov. 26, 2020, 10 p.m. | N/A | 17.6 ppb (17) | N/A | 9.0 ppb (9) | N/A | N/A | 23.0 ppb (22) | N/A | N/A | 0.1 μg/m3 (1) | 22.0 | |
| Nov. 26, 2020, 9 p.m. | N/A | 18.3 ppb (18) | N/A | 8.0 ppb (8) | N/A | N/A | 22.0 ppb (21) | N/A | N/A | 0.3 μg/m3 (2) | 21.0 | |
| Nov. 26, 2020, 8 p.m. | N/A | 22.9 ppb (22) | N/A | 8.0 ppb (8) | N/A | N/A | 22.0 ppb (21) | N/A | N/A | 0.2 μg/m3 (1) | 22.0 | |
| Nov. 26, 2020, 7 p.m. | N/A | 23.5 ppb (23) | N/A | 7.0 ppb (7) | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 0.4 μg/m3 (2) | 23.0 | |
| Nov. 26, 2020, 6 p.m. | N/A | 25.2 ppb (24) | N/A | 8.0 ppb (8) | N/A | N/A | 14.0 ppb (13) | N/A | N/A | 0.7 μg/m3 (3) | 24.0 | |
| Nov. 26, 2020, 5 p.m. | N/A | 25.1 ppb (24) | N/A | 8.0 ppb (8) | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 0.9 μg/m3 (4) | 24.0 | |
| Nov. 26, 2020, 4 p.m. | N/A | 26.0 ppb (25) | N/A | 8.0 ppb (8) | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 1.3 μg/m3 (6) | 25.0 | |
| Nov. 26, 2020, 3 p.m. | N/A | 26.2 ppb (25) | N/A | 8.0 ppb (8) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 1.7 μg/m3 (8) | 25.0 | |
| Nov. 26, 2020, 2 p.m. | N/A | 26.3 ppb (25) | N/A | 7.0 ppb (7) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 2.0 μg/m3 (9) | 25.0 | |
| Nov. 26, 2020, 1 p.m. | N/A | 26.3 ppb (25) | N/A | 6.0 ppb (6) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 1.3 μg/m3 (6) | 25.0 | |
| Nov. 26, 2020, noon | N/A | 27.3 ppb (26) | N/A | 5.0 ppb (5) | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 1.5 μg/m3 (7) | 26.0 | |
| Nov. 26, 2020, 11 a.m. | N/A | 28.4 ppb (27) | N/A | 4.0 ppb (4) | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 2.2 μg/m3 (10) | 27.0 | |
| Nov. 26, 2020, 10 a.m. | N/A | 29.5 ppb (28) | N/A | 4.0 ppb (4) | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 3.3 μg/m3 (14) | 28.0 | |
| Nov. 26, 2020, 9 a.m. | N/A | 30.3 ppb (29) | N/A | 5.0 ppb (5) | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 7.2 μg/m3 (31) | 31.0 | |
| Nov. 26, 2020, 8 a.m. | N/A | 31.0 ppb (30) | N/A | 5.0 ppb (5) | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 2.6 μg/m3 (11) | 30.0 | |
| Nov. 26, 2020, 7 a.m. | N/A | 32.5 ppb (31) | N/A | 5.0 ppb (5) | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 2.9 μg/m3 (13) | 31.0 | |
| Nov. 26, 2020, 6 a.m. | N/A | 34.4 ppb (33) | N/A | 7.0 ppb (7) | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 5.6 μg/m3 (24) | 33.0 | |
| Nov. 26, 2020, 5 a.m. | N/A | 37.2 ppb (36) | N/A | 10.0 ppb (10) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 7.3 μg/m3 (31) | 36.0 | |
| Nov. 26, 2020, 4 a.m. | N/A | 39.3 ppb (38) | N/A | 11.0 ppb (11) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 7.7 μg/m3 (33) | 38.0 | |
| Nov. 26, 2020, 3 a.m. | N/A | 48.3 ppb (46) | N/A | 12.0 ppb (12) | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 13.7 μg/m3 (55) | 55.0 | |
| Nov. 26, 2020, 2 a.m. | N/A | 46.7 ppb (45) | N/A | 11.0 ppb (11) | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 11.5 μg/m3 (48) | 48.0 | |
| Nov. 26, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.2 μg/m3 (14) | 14.0 | |
| Nov. 26, 2020, midnight | N/A | 41.9 ppb (40) | N/A | 12.0 ppb (12) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 4.5 μg/m3 (19) | 40.0 | |
| Nov. 25, 2020, 11 p.m. | N/A | 40.4 ppb (39) | N/A | 10.0 ppb (10) | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 4.2 μg/m3 (18) | 39.0 | |
| Nov. 25, 2020, 10 p.m. | N/A | 41.8 ppb (40) | N/A | 9.0 ppb (9) | N/A | N/A | 10.0 ppb (10) | N/A | N/A | 2.8 μg/m3 (12) | 40.0 | |
| Nov. 25, 2020, 9 p.m. | N/A | 44.2 ppb (42) | N/A | 8.0 ppb (8) | N/A | N/A | 11.0 ppb (11) | N/A | N/A | 2.1 μg/m3 (9) | 42.0 | |
| Nov. 25, 2020, 8 p.m. | N/A | 48.3 ppb (46) | N/A | 10.0 ppb (10) | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 3.0 μg/m3 (13) | 46.0 | |
| Nov. 25, 2020, 7 p.m. | N/A | 47.5 ppb (45) | N/A | 10.0 ppb (10) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 3.1 μg/m3 (13) | 45.0 | |
| Nov. 25, 2020, 6 p.m. | N/A | 43.4 ppb (41) | N/A | 9.0 ppb (9) | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 2.9 μg/m3 (13) | 41.0 | |
| Nov. 25, 2020, 5 p.m. | N/A | 42.4 ppb (40) | N/A | 10.0 ppb (10) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 3.6 μg/m3 (16) | 40.0 | |
| Nov. 25, 2020, 4 p.m. | N/A | 41.9 ppb (40) | N/A | 11.0 ppb (11) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 5.1 μg/m3 (22) | 40.0 | |
| Nov. 25, 2020, 3 p.m. | N/A | 36.2 ppb (35) | N/A | 9.0 ppb (9) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 1.5 μg/m3 (7) | 35.0 | |
| Nov. 25, 2020, 2 p.m. | N/A | 35.5 ppb (34) | N/A | 9.0 ppb (9) | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 4.0 μg/m3 (17) | 34.0 | |
| Nov. 25, 2020, 1 p.m. | N/A | 34.9 ppb (33) | N/A | 8.0 ppb (8) | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 1.8 μg/m3 (8) | 33.0 | |
| Nov. 25, 2020, noon | N/A | 36.1 ppb (35) | N/A | 8.0 ppb (8) | N/A | N/A | 8.0 ppb (8) | N/A | N/A | 4.5 μg/m3 (19) | 35.0 | |
| Nov. 25, 2020, 11 a.m. | N/A | 36.5 ppb (35) | N/A | 9.0 ppb (9) | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 20.3 μg/m3 (69) | 69.0 | |
| Nov. 25, 2020, 10 a.m. | N/A | 35.7 ppb (34) | N/A | 8.0 ppb (8) | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 14.1 μg/m3 (56) | 56.0 | |
| Nov. 25, 2020, 9 a.m. | N/A | 36.2 ppb (35) | N/A | 9.0 ppb (9) | N/A | N/A | 8.0 ppb (8) | N/A | N/A | 12.6 μg/m3 (53) | 53.0 | |
| Nov. 25, 2020, 8 a.m. | N/A | 35.4 ppb (34) | N/A | 10.0 ppb (10) | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 8.7 μg/m3 (37) | 37.0 | |
| Nov. 25, 2020, 7 a.m. | N/A | 34.3 ppb (33) | N/A | 11.0 ppb (11) | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 9.1 μg/m3 (38) | 38.0 |