Broadus (Big Powder Riv E Rd) MT, US: 45.440295, -105.37028
| 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 | 26.0 ppb (20) | N/A | 7.0 μg/m3 (6) | 5.7 μg/m3 (24) | 24.0 | |
| Sept. 29, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | 4.0 μg/m3 (4) | 10.4 μg/m3 (43) | 43.0 | |
| Sept. 29, 2020, 7 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) | 5.3 μg/m3 (22) | 22.0 | |
| Sept. 29, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (22) | N/A | 12.0 μg/m3 (11) | 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 | 26.0 ppb (20) | N/A | 36.0 μg/m3 (33) | 13.1 μg/m3 (52) | 52.0 | |
| Sept. 29, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | N/A | 18.0 μg/m3 (16) | 4.2 μg/m3 (18) | 19.0 | |
| Sept. 29, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 20.0 μg/m3 (18) | 5.6 μg/m3 (23) | 23.0 | |
| Sept. 29, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 28.0 μg/m3 (25) | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 29, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 75.0 μg/m3 (60) | 12.7 μg/m3 (51) | 60.0 | |
| Sept. 29, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | 96.0 μg/m3 (70) | 14.5 μg/m3 (55) | 70.0 | |
| Sept. 28, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | 63.0 μg/m3 (54) | 13.3 μg/m3 (53) | 54.0 | |
| Sept. 28, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 42.0 μg/m3 (38) | 4.0 μg/m3 (17) | 38.0 | |
| Sept. 28, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 51.0 μg/m3 (46) | 4.3 μg/m3 (18) | 46.0 | |
| Sept. 28, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | 37.0 μg/m3 (34) | -0.9 μg/m3 (0) | 34.0 | |
| Sept. 28, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 20.0 μg/m3 (18) | -3.4 μg/m3 (0) | 31.0 | |
| Sept. 28, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 29.0 μg/m3 (26) | -4.6 μg/m3 (0) | 30.0 | |
| Sept. 28, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | 45.0 μg/m3 (41) | N/A | 41.0 | |
| Sept. 28, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 22.0 μg/m3 (20) | -2.9 μg/m3 (0) | 28.0 | |
| Sept. 28, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 5.0 μg/m3 (5) | 59.3 μg/m3 (152) | 152.0 | |
| Sept. 28, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (22) | N/A | 13.0 μg/m3 (12) | 27.8 μg/m3 (84) | 84.0 | |
| Sept. 28, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | N/A | 7.0 μg/m3 (6) | 5.3 μg/m3 (22) | 22.0 | |
| Sept. 28, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | 7.0 μg/m3 (6) | 5.2 μg/m3 (22) | 22.0 | |
| Sept. 28, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (22) | N/A | 2.0 μg/m3 (2) | 1.2 μg/m3 (5) | 22.0 | |
| Sept. 28, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | 1.0 μg/m3 (1) | 1.6 μg/m3 (7) | 22.0 | |
| Sept. 28, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 3.0 μg/m3 (3) | 0.9 μg/m3 (4) | 23.0 | |
| Sept. 28, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | 1.0 μg/m3 (1) | 2.2 μg/m3 (9) | 22.0 | |
| Sept. 28, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | 1.0 μg/m3 (1) | 5.3 μg/m3 (22) | 22.0 | |
| Sept. 28, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | 4.0 μg/m3 (4) | 2.7 μg/m3 (11) | 22.0 | |
| Sept. 28, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | 7.0 μg/m3 (6) | 3.5 μg/m3 (15) | 22.0 | |
| Sept. 28, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | 8.0 μg/m3 (7) | 6.3 μg/m3 (26) | 26.0 | |
| Sept. 28, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | 8.0 μg/m3 (7) | -0.1 μg/m3 (0) | 25.0 | |
| Sept. 28, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 8.0 μg/m3 (7) | 2.0 μg/m3 (8) | 25.0 | |
| Sept. 28, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 11.0 μg/m3 (10) | 1.8 μg/m3 (8) | 28.0 | |
| Sept. 28, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 6.0 μg/m3 (5) | 4.3 μg/m3 (18) | 30.0 | |
| Sept. 27, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 14.0 μg/m3 (13) | 9.9 μg/m3 (41) | 41.0 | |
| Sept. 27, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 16.0 μg/m3 (15) | 3.7 μg/m3 (15) | 30.0 | |
| Sept. 27, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | 13.0 μg/m3 (12) | 3.7 μg/m3 (15) | 29.0 | |
| Sept. 27, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 14.0 μg/m3 (13) | 13.4 μg/m3 (53) | 53.0 | |
| Sept. 27, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 10.0 μg/m3 (9) | 3.9 μg/m3 (16) | 28.0 | |
| Sept. 27, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 10.0 μg/m3 (9) | 6.9 μg/m3 (29) | 29.0 | |
| Sept. 27, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 5.0 μg/m3 (5) | 2.9 μg/m3 (12) | 26.0 | |
| Sept. 27, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | 18.0 μg/m3 (16) | 3.8 μg/m3 (16) | 28.0 | |
| Sept. 27, 2020, 3 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) | 2.4 μg/m3 (10) | 28.0 | |
| Sept. 27, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | 26.0 μg/m3 (24) | 7.3 μg/m3 (30) | 30.0 | |
| Sept. 27, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | 28.0 μg/m3 (25) | 5.8 μg/m3 (24) | 25.0 | |
| Sept. 27, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 5.0 μg/m3 (5) | -0.4 μg/m3 (0) | 25.0 | |
| Sept. 27, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 2.0 μg/m3 (2) | -0.8 μg/m3 (0) | 26.0 | |
| Sept. 27, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 3.0 μg/m3 (3) | 1.7 μg/m3 (7) | 27.0 | |
| Sept. 27, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | 4.0 μg/m3 (4) | -0.5 μg/m3 (0) | 28.0 | |
| Sept. 27, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 13.0 μg/m3 (12) | 3.2 μg/m3 (13) | 28.0 | |
| Sept. 27, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | 11.0 μg/m3 (10) | 14.6 μg/m3 (56) | 56.0 | |
| Sept. 27, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | N/A | 7.0 μg/m3 (6) | 12.5 μg/m3 (51) | 51.0 | |
| Sept. 27, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | N/A | 11.0 μg/m3 (10) | 16.8 μg/m3 (60) | 60.0 | |
| Sept. 27, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | N/A | 10.0 μg/m3 (9) | 2.7 μg/m3 (11) | 17.0 | |
| Sept. 27, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | 5.0 μg/m3 (5) | 0.7 μg/m3 (3) | 21.0 | |
| Sept. 27, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | 10.0 μg/m3 (9) | 4.0 μg/m3 (17) | 25.0 | |
| Sept. 27, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 19.0 μg/m3 (17) | 13.5 μg/m3 (53) | 53.0 | |
| Sept. 27, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | 19.0 μg/m3 (17) | 23.5 μg/m3 (74) | 74.0 | |
| Sept. 26, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 15.0 μg/m3 (14) | 0.1 μg/m3 (0) | 31.0 | |
| Sept. 26, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | N/A | 24.0 μg/m3 (22) | 7.7 μg/m3 (32) | 34.0 | |
| Sept. 26, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | N/A | 36.0 μg/m3 (33) | 2.4 μg/m3 (10) | 34.0 | |
| Sept. 26, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | N/A | 31.0 μg/m3 (28) | 7.7 μg/m3 (32) | 35.0 | |
| Sept. 26, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | N/A | 19.0 μg/m3 (17) | 7.0 μg/m3 (29) | 35.0 | |
| Sept. 26, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 10.0 μg/m3 (9) | 2.3 μg/m3 (10) | 32.0 | |
| Sept. 26, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 6.0 μg/m3 (5) | 13.9 μg/m3 (54) | 54.0 | |
| Sept. 26, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | -1.0 μg/m3 (0) | 20.3 μg/m3 (68) | 68.0 | |
| Sept. 26, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | 0.0 μg/m3 (0) | 3.5 μg/m3 (15) | 28.0 | |
| Sept. 26, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 9.0 μg/m3 (8) | 6.1 μg/m3 (25) | 28.0 | |
| Sept. 26, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 21.0 μg/m3 (19) | 2.0 μg/m3 (8) | 31.0 | |
| Sept. 26, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | N/A | 16.0 μg/m3 (15) | 2.5 μg/m3 (10) | 35.0 | |
| Sept. 26, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | N/A | 15.0 μg/m3 (14) | 3.0 μg/m3 (12) | 35.0 | |
| Sept. 26, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | N/A | 11.0 μg/m3 (10) | 2.6 μg/m3 (11) | 35.0 | |
| Sept. 26, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 25.0 μg/m3 (23) | 6.1 μg/m3 (25) | 32.0 | |
| Sept. 26, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | 28.0 μg/m3 (25) | 16.6 μg/m3 (60) | 60.0 | |
| Sept. 26, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | 38.0 μg/m3 (35) | 13.0 μg/m3 (52) | 52.0 | |
| Sept. 26, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | 29.0 μg/m3 (26) | 12.5 μg/m3 (51) | 51.0 | |
| Sept. 26, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | 21.0 μg/m3 (19) | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 26, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | 20.0 μg/m3 (18) | 8.9 μg/m3 (37) | 37.0 | |
| Sept. 26, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 34.0 μg/m3 (31) | 14.6 μg/m3 (56) | 56.0 | |
| Sept. 26, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 83.0 μg/m3 (64) | 27.2 μg/m3 (82) | 82.0 | |
| Sept. 26, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 115.0 μg/m3 (80) | 32.5 μg/m3 (94) | 94.0 | |
| Sept. 26, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 58.0 μg/m3 (52) | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 25, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | 11.0 μg/m3 (10) | 2.6 μg/m3 (11) | 32.0 | |
| Sept. 25, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 13.0 μg/m3 (12) | 8.6 μg/m3 (36) | 36.0 | |
| Sept. 25, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 13.0 μg/m3 (12) | 4.0 μg/m3 (17) | 32.0 | |
| Sept. 25, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 9.0 μg/m3 (8) | 0.7 μg/m3 (3) | 32.0 | |
| Sept. 25, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | N/A | 16.0 μg/m3 (15) | 2.9 μg/m3 (12) | 33.0 | |
| Sept. 25, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | N/A | 42.0 μg/m3 (38) | 7.8 μg/m3 (32) | 38.0 | |
| Sept. 25, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 33.0 μg/m3 (30) | 6.3 μg/m3 (26) | 32.0 | |
| Sept. 25, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 103.0 μg/m3 (74) | 23.7 μg/m3 (75) | 75.0 | |
| Sept. 25, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 378.0 μg/m3 (233) | 85.1 μg/m3 (166) | 233.0 | |
| Sept. 25, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | 601.0 μg/m3 (496) | 124.4 μg/m3 (186) | 496.0 | |
| Sept. 25, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | 87.0 μg/m3 (66) | 17.5 μg/m3 (62) | 66.0 | |
| Sept. 25, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 23.0 μg/m3 (21) | 10.8 μg/m3 (45) | 45.0 | |
| Sept. 25, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 24.0 μg/m3 (22) | 10.9 μg/m3 (45) | 45.0 | |
| Sept. 25, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | 7.0 μg/m3 (6) | 4.3 μg/m3 (18) | 24.0 | |
| Sept. 25, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | 6.0 μg/m3 (5) | 2.3 μg/m3 (10) | 25.0 | |
| Sept. 25, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | 8.0 μg/m3 (7) | -3.3 μg/m3 (0) | 29.0 | |
| Sept. 25, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 15.0 μg/m3 (14) | -0.3 μg/m3 (0) | 30.0 | |
| Sept. 25, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 7.0 μg/m3 (6) | -2.1 μg/m3 (0) | 31.0 | |
| Sept. 25, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 13.0 μg/m3 (12) | 3.7 μg/m3 (15) | 32.0 | |
| Sept. 25, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | N/A | 39.0 μg/m3 (35) | 10.9 μg/m3 (45) | 45.0 | |
| Sept. 25, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | N/A | 11.8 μg/m3 (49) | 49.0 | |
| Sept. 25, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | N/A | 22.1 μg/m3 (71) | 71.0 | |
| Sept. 25, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | N/A | 214.0 μg/m3 (130) | 44.0 μg/m3 (121) | 130.0 | |
| Sept. 25, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | N/A | N/A | 56.4 μg/m3 (150) | 150.0 | |
| Sept. 24, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | N/A | 85.0 μg/m3 (65) | 23.9 μg/m3 (75) | 75.0 | |
| Sept. 24, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | 30.0 μg/m3 (27) | 11.9 μg/m3 (50) | 50.0 | |
| Sept. 24, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 59.0 ppb (45) | N/A | 26.0 μg/m3 (24) | 15.0 μg/m3 (56) | 56.0 | |
| Sept. 24, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 57.0 ppb (44) | N/A | 28.0 μg/m3 (25) | 15.5 μg/m3 (57) | 57.0 | |
| Sept. 24, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | 30.0 μg/m3 (27) | 15.2 μg/m3 (57) | 57.0 | |
| Sept. 24, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | N/A | 32.0 μg/m3 (29) | 15.1 μg/m3 (57) | 57.0 | |
| Sept. 24, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 33.0 μg/m3 (30) | 19.7 μg/m3 (66) | 66.0 | |
| Sept. 24, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 32.0 μg/m3 (29) | 17.4 μg/m3 (61) | 61.0 | |
| Sept. 24, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 29.0 μg/m3 (26) | 7.2 μg/m3 (30) | 30.0 | |
| Sept. 24, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 26.0 μg/m3 (24) | 11.9 μg/m3 (50) | 50.0 | |
| Sept. 24, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 23.0 μg/m3 (21) | 13.2 μg/m3 (53) | 53.0 | |
| Sept. 24, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 23.0 μg/m3 (21) | 18.8 μg/m3 (64) | 64.0 | |
| Sept. 24, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | 26.0 μg/m3 (24) | 14.7 μg/m3 (56) | 56.0 | |
| Sept. 24, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 31.0 μg/m3 (28) | 18.8 μg/m3 (64) | 64.0 | |
| Sept. 24, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 36.0 μg/m3 (33) | 26.0 μg/m3 (80) | 80.0 | |
| Sept. 24, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (22) | N/A | 44.0 μg/m3 (40) | 27.2 μg/m3 (82) | 82.0 | |
| Sept. 24, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 50.0 μg/m3 (45) | 24.9 μg/m3 (77) | 77.0 | |
| Sept. 24, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | N/A | 53.0 μg/m3 (48) | 32.9 μg/m3 (94) | 94.0 | |
| Sept. 24, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 107.0 μg/m3 (76) | 44.1 μg/m3 (122) | 122.0 | |
| Sept. 24, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | N/A | 83.8 μg/m3 (165) | 165.0 | |
| Sept. 24, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | N/A | 75.8 μg/m3 (161) | 161.0 | |
| Sept. 24, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 37.0 μg/m3 (34) | 27.5 μg/m3 (83) | 83.0 | |
| Sept. 24, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | N/A | 30.3 μg/m3 (89) | 89.0 | |
| Sept. 24, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | N/A | 179.0 μg/m3 (112) | 48.4 μg/m3 (132) | 132.0 | |
| Sept. 23, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | N/A | 180.0 μg/m3 (112) | 40.9 μg/m3 (114) | 114.0 | |
| Sept. 23, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (41) | N/A | 101.0 μg/m3 (73) | 36.5 μg/m3 (102) | 102.0 | |
| Sept. 23, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | N/A | 82.0 μg/m3 (64) | 27.1 μg/m3 (82) | 82.0 | |
| Sept. 23, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | N/A | 79.0 μg/m3 (62) | 24.0 μg/m3 (76) | 76.0 | |
| Sept. 23, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | 87.0 μg/m3 (66) | 27.3 μg/m3 (83) | 83.0 | |
| Sept. 23, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | N/A | 50.0 μg/m3 (45) | 19.3 μg/m3 (66) | 66.0 | |
| Sept. 23, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | N/A | 65.0 μg/m3 (55) | 24.1 μg/m3 (76) | 76.0 | |
| Sept. 23, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | N/A | 118.0 μg/m3 (82) | 33.5 μg/m3 (96) | 96.0 | |
| Sept. 23, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 148.0 μg/m3 (96) | 45.0 μg/m3 (124) | 124.0 | |
| Sept. 23, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 175.0 μg/m3 (110) | 39.8 μg/m3 (111) | 111.0 | |
| Sept. 23, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 41.2 μg/m3 (114) | 114.0 | |
| Sept. 23, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 69.0 μg/m3 (57) | 21.9 μg/m3 (71) | 71.0 | |
| Sept. 23, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | N/A | 20.0 μg/m3 (18) | 12.0 μg/m3 (50) | 50.0 | |
| Sept. 23, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | N/A | 19.0 μg/m3 (17) | 13.1 μg/m3 (52) | 52.0 | |
| Sept. 23, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | N/A | 19.0 μg/m3 (17) | 11.4 μg/m3 (48) | 48.0 | |
| Sept. 23, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | 17.0 μg/m3 (15) | 12.1 μg/m3 (50) | 50.0 | |
| Sept. 23, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | N/A | 22.0 μg/m3 (20) | 12.4 μg/m3 (51) | 51.0 | |
| Sept. 23, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | N/A | 29.0 μg/m3 (26) | 13.0 μg/m3 (52) | 52.0 | |
| Sept. 23, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | N/A | 55.0 μg/m3 (50) | 18.4 μg/m3 (64) | 64.0 | |
| Sept. 23, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 92.0 μg/m3 (68) | 26.8 μg/m3 (81) | 81.0 | |
| Sept. 23, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | N/A | 109.0 μg/m3 (77) | 30.3 μg/m3 (89) | 89.0 | |
| Sept. 23, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | N/A | 174.0 μg/m3 (110) | 42.5 μg/m3 (118) | 118.0 | |
| Sept. 23, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | N/A | N/A | 101.4 μg/m3 (174) | 174.0 | |
| Sept. 23, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (43) | N/A | 31.0 μg/m3 (28) | 16.2 μg/m3 (59) | 59.0 | |
| Sept. 22, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 63.0 ppb (48) | N/A | 47.0 μg/m3 (43) | 17.1 μg/m3 (61) | 61.0 | |
| Sept. 22, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 65.0 ppb (50) | N/A | 23.0 μg/m3 (21) | 12.4 μg/m3 (51) | 51.0 | |
| Sept. 22, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 66.0 ppb (51) | N/A | 14.0 μg/m3 (13) | 6.0 μg/m3 (25) | 51.0 | |
| Sept. 22, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 64.0 ppb (49) | N/A | 14.0 μg/m3 (13) | 10.3 μg/m3 (43) | 49.0 | |
| Sept. 22, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 62.0 ppb (48) | N/A | 17.0 μg/m3 (15) | 5.8 μg/m3 (24) | 48.0 | |
| Sept. 22, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (45) | N/A | 19.0 μg/m3 (17) | 11.2 μg/m3 (47) | 47.0 | |
| Sept. 22, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | N/A | 27.0 μg/m3 (25) | 13.4 μg/m3 (53) | 53.0 | |
| Sept. 22, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 63.0 μg/m3 (54) | 16.1 μg/m3 (59) | 59.0 | |
| Sept. 22, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 295.0 μg/m3 (170) | 53.2 μg/m3 (144) | 170.0 | |
| Sept. 22, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | N/A | 396.0 μg/m3 (259) | 67.3 μg/m3 (156) | 259.0 | |
| Sept. 22, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (12) | N/A | 146.0 μg/m3 (96) | 29.4 μg/m3 (87) | 96.0 | |
| Sept. 22, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | N/A | 39.0 μg/m3 (35) | 17.3 μg/m3 (61) | 61.0 | |
| Sept. 22, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (15) | N/A | 28.0 μg/m3 (25) | 9.8 μg/m3 (41) | 41.0 | |
| Sept. 22, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | N/A | 30.0 μg/m3 (27) | 13.1 μg/m3 (52) | 52.0 |