Birney (Tongue Riv Rd) MT, US: 45.366151, -106.48982
Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
April 20, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 13.0 μg/m3 (13) | 3.1 μg/m3 (13) | 39.0 | |
April 20, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 14.0 μg/m3 (13) | 1.1 μg/m3 (5) | 40.0 | |
April 20, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 9.0 μg/m3 (9) | 0.6 μg/m3 (3) | 41.0 | |
April 20, 2021, 6 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) | 7.6 μg/m3 (32) | 39.0 | |
April 20, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 7.0 μg/m3 (7) | 2.3 μg/m3 (10) | 38.0 | |
April 20, 2021, 4 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) | 1.8 μg/m3 (8) | 38.0 | |
April 20, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 3.0 μg/m3 (3) | 0.2 μg/m3 (1) | 38.0 | |
April 20, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 5.0 μg/m3 (5) | 3.4 μg/m3 (15) | 38.0 | |
April 20, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 11.0 μg/m3 (11) | -1.0 μg/m3 (0) | 40.0 | |
April 20, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 15.0 μg/m3 (14) | N/A | 39.0 | |
April 19, 2021, 11 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) | 1.3 μg/m3 (6) | 39.0 | |
April 19, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 1.0 μg/m3 (1) | -0.6 μg/m3 (0) | 39.0 | |
April 19, 2021, 9 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) | -0.8 μg/m3 (0) | 39.0 | |
April 19, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 4.0 μg/m3 (4) | 2.4 μg/m3 (10) | 40.0 | |
April 19, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 11.0 μg/m3 (11) | 6.2 μg/m3 (26) | 40.0 | |
April 19, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 8.0 μg/m3 (8) | 0.9 μg/m3 (4) | 41.0 | |
April 19, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 7.0 μg/m3 (7) | 1.3 μg/m3 (6) | 39.0 | |
April 19, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | N/A | 4.0 μg/m3 (4) | 3.2 μg/m3 (14) | 37.0 | |
April 19, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 1.0 μg/m3 (1) | 0.5 μg/m3 (3) | 36.0 | |
April 19, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 0.0 μg/m3 (0) | -0.8 μg/m3 (0) | 36.0 | |
April 19, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | N/A | 8.0 μg/m3 (8) | -4.1 μg/m3 (0) | 33.0 | |
April 19, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (31) | N/A | -2.0 μg/m3 (0) | 2.2 μg/m3 (10) | 31.0 | |
April 19, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 10.0 μg/m3 (10) | 0.4 μg/m3 (2) | 34.0 | |
April 19, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | N/A | 7.0 μg/m3 (7) | 7.9 μg/m3 (33) | 35.0 | |
April 19, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 13.0 μg/m3 (13) | 12.1 μg/m3 (51) | 51.0 | |
April 19, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | N/A | 10.0 μg/m3 (10) | 20.4 μg/m3 (69) | 69.0 | |
April 19, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | -1.0 μg/m3 (0) | -2.1 μg/m3 (0) | 34.0 | |
April 19, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 3.0 μg/m3 (3) | N/A | 36.0 | |
April 19, 2021, 5 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) | -0.1 μg/m3 (0) | 40.0 | |
April 19, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (47) | N/A | 9.0 μg/m3 (9) | 6.3 μg/m3 (27) | 47.0 | |
April 19, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 4.0 μg/m3 (4) | N/A | 44.0 | |
April 19, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (31) | N/A | 7.0 μg/m3 (7) | 8.1 μg/m3 (34) | 34.0 | |
April 19, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (31) | N/A | 6.0 μg/m3 (6) | 10.2 μg/m3 (43) | 43.0 | |
April 19, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | N/A | 17.0 μg/m3 (16) | 6.2 μg/m3 (26) | 33.0 | |
April 18, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | N/A | 9.0 μg/m3 (9) | 7.0 μg/m3 (30) | 35.0 | |
April 18, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 22.0 μg/m3 (21) | 7.7 μg/m3 (33) | 39.0 | |
April 18, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 22.0 μg/m3 (21) | 5.8 μg/m3 (25) | 42.0 | |
April 18, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 26.0 μg/m3 (25) | 9.1 μg/m3 (38) | 41.0 | |
April 18, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 32.0 μg/m3 (30) | 5.8 μg/m3 (25) | 41.0 | |
April 18, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 24.0 μg/m3 (23) | 3.4 μg/m3 (15) | 41.0 | |
April 18, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 20.0 μg/m3 (19) | 3.1 μg/m3 (13) | 38.0 | |
April 18, 2021, 4 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) | -2.6 μg/m3 (0) | 38.0 | |
April 18, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (32) | N/A | 22.0 μg/m3 (21) | -1.3 μg/m3 (0) | 32.0 | |
April 18, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (21) | N/A | 12.0 μg/m3 (12) | -0.4 μg/m3 (0) | 21.0 | |
April 18, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (21) | N/A | 5.0 μg/m3 (5) | 1.4 μg/m3 (6) | 21.0 | |
April 18, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (23) | N/A | 7.0 μg/m3 (7) | 2.9 μg/m3 (13) | 23.0 | |
April 18, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (25) | N/A | 8.0 μg/m3 (8) | 1.3 μg/m3 (6) | 25.0 | |
April 18, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (25) | N/A | 6.0 μg/m3 (6) | 5.4 μg/m3 (23) | 25.0 | |
April 18, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (26) | N/A | 13.0 μg/m3 (13) | 7.9 μg/m3 (33) | 33.0 | |
April 18, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (26) | N/A | 12.0 μg/m3 (12) | 7.0 μg/m3 (30) | 30.0 | |
April 18, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (25) | N/A | 2.0 μg/m3 (2) | 2.3 μg/m3 (10) | 25.0 | |
April 18, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (24) | N/A | 8.0 μg/m3 (8) | 4.8 μg/m3 (20) | 24.0 | |
April 18, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (25) | N/A | 18.0 μg/m3 (17) | 5.2 μg/m3 (22) | 25.0 | |
April 18, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (25) | N/A | 22.0 μg/m3 (21) | 4.4 μg/m3 (19) | 25.0 | |
April 18, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | N/A | 8.0 μg/m3 (8) | 5.7 μg/m3 (24) | 28.0 | |
April 18, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (32) | N/A | 17.0 μg/m3 (16) | 5.2 μg/m3 (22) | 32.0 | |
April 18, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 5.0 μg/m3 (5) | 2.4 μg/m3 (10) | 39.0 | |
April 18, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 15.0 μg/m3 (14) | 7.2 μg/m3 (31) | 43.0 | |
April 17, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 7.0 μg/m3 (7) | 1.8 μg/m3 (8) | 41.0 | |
April 17, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | -2.0 μg/m3 (0) | 1.3 μg/m3 (6) | 42.0 | |
April 17, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 11.0 μg/m3 (11) | 1.5 μg/m3 (7) | 41.0 | |
April 17, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 5.0 μg/m3 (5) | 2.2 μg/m3 (10) | 43.0 | |
April 17, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 4.0 μg/m3 (4) | 3.8 μg/m3 (16) | 44.0 | |
April 17, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 3.0 μg/m3 (3) | 3.3 μg/m3 (14) | 43.0 | |
April 17, 2021, 5 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) | 5.6 μg/m3 (24) | 43.0 | |
April 17, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 0.0 μg/m3 (0) | -1.7 μg/m3 (0) | 38.0 | |
April 17, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (26) | N/A | N/A | 2.0 μg/m3 (9) | 26.0 | |
April 17, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (16) | N/A | 0.0 μg/m3 (0) | N/A | 16.0 | |
April 17, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (14) | N/A | 1.0 μg/m3 (1) | N/A | 14.0 | |
April 17, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (14) | N/A | 14.0 μg/m3 (13) | 7.3 μg/m3 (31) | 31.0 | |
April 17, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 ppb (13) | N/A | 8.0 μg/m3 (8) | 8.6 μg/m3 (36) | 36.0 | |
April 17, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (15) | N/A | 11.0 μg/m3 (11) | 5.3 μg/m3 (23) | 23.0 | |
April 17, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (15) | N/A | 11.0 μg/m3 (11) | 5.0 μg/m3 (21) | 21.0 | |
April 17, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 9.0 μg/m3 (9) | 1.6 μg/m3 (7) | 17.0 | |
April 17, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 15.0 μg/m3 (14) | 3.0 μg/m3 (13) | 19.0 | |
April 17, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (25) | N/A | 11.0 μg/m3 (11) | 5.6 μg/m3 (24) | 25.0 | |
April 17, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (30) | N/A | 10.0 μg/m3 (10) | 3.2 μg/m3 (14) | 30.0 | |
April 17, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | N/A | 8.0 μg/m3 (8) | 4.6 μg/m3 (20) | 37.0 | |
April 17, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | N/A | 12.0 μg/m3 (12) | 4.9 μg/m3 (21) | 35.0 | |
April 17, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | N/A | 18.0 μg/m3 (17) | 8.4 μg/m3 (36) | 36.0 | |
April 17, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 11.0 μg/m3 (11) | 3.1 μg/m3 (13) | 39.0 | |
April 17, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 13.0 μg/m3 (13) | 4.9 μg/m3 (21) | 41.0 | |
April 16, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 2.0 μg/m3 (2) | 4.4 μg/m3 (19) | 41.0 | |
April 16, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 7.0 μg/m3 (7) | 0.9 μg/m3 (4) | 38.0 | |
April 16, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | N/A | 0.0 μg/m3 (0) | -2.4 μg/m3 (0) | 35.0 | |
April 16, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (31) | N/A | 0.0 μg/m3 (0) | 0.3 μg/m3 (2) | 31.0 | |
April 16, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (30) | N/A | 2.0 μg/m3 (2) | 1.7 μg/m3 (8) | 30.0 | |
April 16, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | N/A | 3.0 μg/m3 (3) | 3.1 μg/m3 (13) | 33.0 | |
April 16, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 1.0 μg/m3 (1) | 0.2 μg/m3 (1) | 34.0 | |
April 16, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (31) | N/A | 0.0 μg/m3 (0) | N/A | 31.0 | |
April 16, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (25) | N/A | 6.0 μg/m3 (6) | 2.5 μg/m3 (11) | 25.0 | |
April 16, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (24) | N/A | 9.0 μg/m3 (9) | 2.2 μg/m3 (10) | 24.0 | |
April 16, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (16) | N/A | 3.0 μg/m3 (3) | 3.1 μg/m3 (13) | 16.0 | |
April 16, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 ppb (13) | N/A | 4.0 μg/m3 (4) | 4.1 μg/m3 (18) | 18.0 | |
April 16, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 7.0 μg/m3 (7) | 1.9 μg/m3 (8) | 17.0 | |
April 16, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (20) | N/A | 4.0 μg/m3 (4) | 4.3 μg/m3 (18) | 20.0 | |
April 16, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (24) | N/A | 4.0 μg/m3 (4) | 5.8 μg/m3 (25) | 25.0 | |
April 16, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (22) | N/A | 8.0 μg/m3 (8) | 7.7 μg/m3 (33) | 33.0 | |
April 16, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (21) | N/A | 0.0 μg/m3 (0) | 4.5 μg/m3 (19) | 21.0 | |
April 16, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 1.0 μg/m3 (1) | 3.7 μg/m3 (16) | 19.0 | |
April 16, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (21) | N/A | 9.0 μg/m3 (9) | 4.4 μg/m3 (19) | 21.0 | |
April 16, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (25) | N/A | 10.0 μg/m3 (10) | 5.8 μg/m3 (25) | 25.0 | |
April 16, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (25) | N/A | 1.0 μg/m3 (1) | 3.4 μg/m3 (15) | 25.0 | |
April 16, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (26) | N/A | 6.0 μg/m3 (6) | 6.1 μg/m3 (26) | 26.0 | |
April 16, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | N/A | 7.0 μg/m3 (7) | 8.1 μg/m3 (34) | 34.0 | |
April 16, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | N/A | 3.0 μg/m3 (3) | 8.3 μg/m3 (35) | 35.0 | |
April 15, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | N/A | N/A | 11.1 μg/m3 (47) | 47.0 | |
April 15, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | N/A | -3.0 μg/m3 (0) | 7.6 μg/m3 (32) | 32.0 | |
April 15, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | N/A | N/A | N/A | 28.0 | |
April 15, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (29) | N/A | 13.0 μg/m3 (13) | N/A | 29.0 | |
April 15, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | N/A | 37.0 μg/m3 (35) | 24.1 μg/m3 (77) | 77.0 | |
April 15, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (27) | N/A | 6.0 μg/m3 (6) | 6.5 μg/m3 (28) | 28.0 | |
April 15, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (27) | N/A | 5.0 μg/m3 (5) | 13.4 μg/m3 (54) | 54.0 | |
April 15, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (26) | N/A | -2.0 μg/m3 (0) | 15.5 μg/m3 (59) | 59.0 | |
April 15, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (26) | N/A | N/A | -2.6 μg/m3 (0) | 26.0 | |
April 15, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (25) | N/A | 2.0 μg/m3 (2) | 0.1 μg/m3 (1) | 25.0 | |
April 15, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (24) | N/A | 5.0 μg/m3 (5) | 3.3 μg/m3 (14) | 24.0 | |
April 15, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (23) | N/A | 2.0 μg/m3 (2) | 4.5 μg/m3 (19) | 23.0 | |
April 15, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (24) | N/A | 2.0 μg/m3 (2) | 1.9 μg/m3 (8) | 24.0 | |
April 15, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (25) | N/A | 0.0 μg/m3 (0) | 2.8 μg/m3 (12) | 25.0 | |
April 15, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (25) | N/A | 6.0 μg/m3 (6) | 3.7 μg/m3 (16) | 25.0 | |
April 15, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (26) | N/A | 0.0 μg/m3 (0) | 1.0 μg/m3 (5) | 26.0 | |
April 15, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (27) | N/A | 5.0 μg/m3 (5) | 3.3 μg/m3 (14) | 27.0 | |
April 15, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (27) | N/A | 3.0 μg/m3 (3) | 2.8 μg/m3 (12) | 27.0 | |
April 15, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (29) | N/A | 3.0 μg/m3 (3) | 0.6 μg/m3 (3) | 29.0 | |
April 15, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (30) | N/A | 1.0 μg/m3 (1) | 1.4 μg/m3 (6) | 30.0 | |
April 15, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (31) | N/A | 1.0 μg/m3 (1) | 6.6 μg/m3 (28) | 31.0 | |
April 15, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (31) | N/A | 6.0 μg/m3 (6) | 1.1 μg/m3 (5) | 31.0 | |
April 15, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 4.0 μg/m3 (4) | 1.1 μg/m3 (5) | 34.0 | |
April 15, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 17.0 μg/m3 (16) | 4.0 μg/m3 (17) | 34.0 | |
April 14, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | N/A | 29.0 μg/m3 (27) | 6.6 μg/m3 (28) | 35.0 | |
April 14, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | N/A | 19.0 μg/m3 (18) | 4.6 μg/m3 (20) | 35.0 | |
April 14, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | N/A | 6.0 μg/m3 (6) | 0.9 μg/m3 (4) | 35.0 | |
April 14, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 6.0 μg/m3 (6) | 0.2 μg/m3 (1) | 34.0 | |
April 14, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (32) | N/A | 20.0 μg/m3 (19) | 2.9 μg/m3 (13) | 32.0 | |
April 14, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (32) | N/A | 24.0 μg/m3 (23) | 1.9 μg/m3 (8) | 32.0 | |
April 14, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (32) | N/A | 7.0 μg/m3 (7) | 1.2 μg/m3 (5) | 32.0 | |
April 14, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | N/A | 2.0 μg/m3 (2) | 6.2 μg/m3 (26) | 33.0 | |
April 14, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | N/A | 2.9 μg/m3 (13) | 34.0 | |
April 14, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | N/A | 0.0 μg/m3 (0) | 2.3 μg/m3 (10) | 35.0 | |
April 14, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 4.0 μg/m3 (4) | -1.7 μg/m3 (0) | 36.0 | |
April 14, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 2.0 μg/m3 (2) | 4.2 μg/m3 (18) | 36.0 | |
April 14, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 1.0 μg/m3 (1) | -0.9 μg/m3 (0) | 36.0 | |
April 14, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 1.0 μg/m3 (1) | 1.5 μg/m3 (7) | 36.0 | |
April 14, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | N/A | 4.0 μg/m3 (4) | 0.0 μg/m3 (0) | 37.0 | |
April 14, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | N/A | 10.0 μg/m3 (10) | 0.0 μg/m3 (0) | 37.0 | |
April 14, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 17.0 μg/m3 (16) | 2.3 μg/m3 (10) | 36.0 | |
April 14, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | N/A | 1.0 μg/m3 (1) | 1.1 μg/m3 (5) | 37.0 | |
April 14, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | N/A | -1.0 μg/m3 (0) | 3.3 μg/m3 (14) | 37.0 | |
April 14, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | N/A | 6.0 μg/m3 (6) | 0.0 μg/m3 (0) | 37.0 | |
April 14, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 0.0 μg/m3 (0) | 3.3 μg/m3 (14) | 38.0 | |
April 14, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 3.0 μg/m3 (3) | 3.6 μg/m3 (16) | 38.0 | |
April 14, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | N/A | 5.0 μg/m3 (5) | 6.2 μg/m3 (26) | 37.0 | |
April 14, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 0.0 μg/m3 (0) | 4.2 μg/m3 (18) | 38.0 | |
April 13, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 6.0 μg/m3 (6) | 1.2 μg/m3 (5) | 39.0 | |
April 13, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 6.0 μg/m3 (6) | 1.4 μg/m3 (6) | 40.0 | |
April 13, 2021, 9 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) | -1.3 μg/m3 (0) | 40.0 | |
April 13, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | N/A | N/A | 41.0 | |
April 13, 2021, 7 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) | -2.8 μg/m3 (0) | 40.0 | |
April 13, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 0.0 μg/m3 (0) | -1.2 μg/m3 (0) | 41.0 | |
April 13, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 4.0 μg/m3 (4) | 1.8 μg/m3 (8) | 40.0 | |
April 13, 2021, 4 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) | N/A | 39.0 | |
April 13, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 3.0 μg/m3 (3) | -2.5 μg/m3 (0) | 38.0 | |
April 13, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 1.0 μg/m3 (1) | 0.8 μg/m3 (4) | 38.0 | |
April 13, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 4.0 μg/m3 (4) | 7.5 μg/m3 (32) | 38.0 | |
April 13, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 7.0 μg/m3 (7) | 4.3 μg/m3 (18) | 41.0 | |
April 13, 2021, 11 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) | 3.1 μg/m3 (13) | 39.0 | |
April 13, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 6.0 μg/m3 (6) | 1.4 μg/m3 (6) | 39.0 |