Las Vegas (Summerlin N) NV, US: 36.173415, -115.332728
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sept. 21, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | N/A | 17.0 μg/m3 (16) | 3.5 μg/m3 (15) | 28.0 | |
| Sept. 21, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 29.0 μg/m3 (27) | 4.5 μg/m3 (19) | 27.0 | |
| Sept. 21, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 19.0 μg/m3 (18) | 3.9 μg/m3 (17) | 18.0 | |
| Sept. 21, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (22) | N/A | 12.0 μg/m3 (12) | 3.4 μg/m3 (15) | 22.0 | |
| Sept. 21, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (23) | N/A | 17.0 μg/m3 (16) | 4.2 μg/m3 (18) | 23.0 | |
| Sept. 21, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (25) | N/A | 14.0 μg/m3 (13) | 3.6 μg/m3 (16) | 25.0 | |
| Sept. 21, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (25) | N/A | 15.0 μg/m3 (14) | 3.6 μg/m3 (16) | 25.0 | |
| Sept. 21, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 μg/m3 (13) | 3.8 μg/m3 (16) | 16.0 | |
| Sept. 21, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | N/A | 16.0 μg/m3 (15) | 4.2 μg/m3 (18) | 28.0 | |
| Sept. 21, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (29) | N/A | 16.0 μg/m3 (15) | 4.7 μg/m3 (20) | 29.0 | |
| Sept. 21, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (22) | N/A | 26.0 μg/m3 (25) | 5.3 μg/m3 (23) | 25.0 | |
| Sept. 21, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (25) | N/A | 56.0 μg/m3 (52) | 6.9 μg/m3 (29) | 52.0 | |
| Sept. 21, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (23) | N/A | 75.0 μg/m3 (61) | 9.2 μg/m3 (39) | 61.0 | |
| Sept. 21, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (32) | N/A | 56.0 μg/m3 (52) | 7.7 μg/m3 (33) | 52.0 | |
| Sept. 21, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 24.0 μg/m3 (23) | 5.9 μg/m3 (25) | 38.0 | |
| Sept. 21, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 30.0 μg/m3 (28) | 6.8 μg/m3 (29) | 44.0 | |
| Sept. 20, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (45) | N/A | 33.0 μg/m3 (31) | 7.0 μg/m3 (30) | 45.0 | |
| Sept. 20, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (45) | N/A | 35.0 μg/m3 (33) | 7.6 μg/m3 (32) | 45.0 | |
| Sept. 20, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 37.0 μg/m3 (35) | 8.0 μg/m3 (34) | 44.0 | |
| Sept. 20, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 38.0 μg/m3 (36) | 7.6 μg/m3 (32) | 44.0 | |
| Sept. 20, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 53.0 μg/m3 (50) | 7.6 μg/m3 (32) | 50.0 | |
| Sept. 20, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 54.0 μg/m3 (50) | 9.1 μg/m3 (38) | 50.0 | |
| Sept. 20, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 56.0 μg/m3 (52) | 9.6 μg/m3 (40) | 52.0 | |
| Sept. 20, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 63.0 μg/m3 (55) | 10.0 μg/m3 (42) | 55.0 | |
| Sept. 20, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 99.0 μg/m3 (73) | 19.5 μg/m3 (67) | 73.0 | |
| Sept. 20, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 87.0 μg/m3 (67) | 17.5 μg/m3 (63) | 67.0 | |
| Sept. 20, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 70.0 μg/m3 (59) | 18.7 μg/m3 (65) | 65.0 | |
| Sept. 20, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | N/A | 56.0 μg/m3 (52) | 16.0 μg/m3 (60) | 60.0 | |
| Sept. 20, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | N/A | 55.0 μg/m3 (51) | 20.6 μg/m3 (69) | 69.0 | |
| Sept. 20, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | N/A | 49.0 μg/m3 (46) | 18.0 μg/m3 (64) | 64.0 | |
| Sept. 20, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 45.0 μg/m3 (42) | 14.8 μg/m3 (57) | 57.0 | |
| Sept. 20, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 48.0 μg/m3 (45) | 17.0 μg/m3 (62) | 62.0 | |
| Sept. 20, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 47.0 μg/m3 (44) | 18.6 μg/m3 (65) | 65.0 | |
| Sept. 20, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 43.0 μg/m3 (40) | 13.8 μg/m3 (55) | 55.0 | |
| Sept. 20, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 51.0 μg/m3 (48) | 10.3 μg/m3 (43) | 48.0 | |
| Sept. 20, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (46) | N/A | 53.0 μg/m3 (50) | 9.1 μg/m3 (38) | 50.0 | |
| Sept. 20, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (48) | N/A | 48.0 μg/m3 (45) | 7.9 μg/m3 (33) | 48.0 | |
| Sept. 20, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (50) | N/A | 49.0 μg/m3 (46) | 9.1 μg/m3 (38) | 50.0 | |
| Sept. 20, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (55) | N/A | 57.0 μg/m3 (52) | 11.4 μg/m3 (48) | 55.0 | |
| Sept. 19, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (61) | N/A | 59.0 μg/m3 (53) | 20.9 μg/m3 (70) | 70.0 | |
| Sept. 19, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (61) | N/A | 53.0 μg/m3 (50) | 18.5 μg/m3 (65) | 65.0 | |
| Sept. 19, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (51) | N/A | 35.0 μg/m3 (33) | 11.6 μg/m3 (49) | 51.0 | |
| Sept. 19, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (50) | N/A | 30.0 μg/m3 (28) | 10.8 μg/m3 (46) | 50.0 | |
| Sept. 19, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (50) | N/A | 34.0 μg/m3 (32) | 8.7 μg/m3 (37) | 50.0 | |
| Sept. 19, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (50) | N/A | 24.0 μg/m3 (23) | 5.1 μg/m3 (22) | 50.0 | |
| Sept. 19, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (48) | N/A | 14.0 μg/m3 (13) | 4.2 μg/m3 (18) | 48.0 | |
| Sept. 19, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (47) | N/A | 14.0 μg/m3 (13) | 5.7 μg/m3 (24) | 47.0 | |
| Sept. 19, 2021, 3 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) | 7.2 μg/m3 (31) | 42.0 | |
| Sept. 19, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 19.0 μg/m3 (18) | 5.5 μg/m3 (23) | 38.0 | |
| Sept. 19, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 16.0 μg/m3 (15) | 5.0 μg/m3 (21) | 43.0 | |
| Sept. 19, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (45) | N/A | 16.0 μg/m3 (15) | 4.8 μg/m3 (20) | 45.0 | |
| Sept. 19, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (48) | N/A | 14.0 μg/m3 (13) | 4.7 μg/m3 (20) | 48.0 | |
| Sept. 19, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 16.0 μg/m3 (15) | 5.2 μg/m3 (22) | 38.0 | |
| Sept. 19, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (45) | N/A | 17.0 μg/m3 (16) | 5.0 μg/m3 (21) | 45.0 | |
| Sept. 19, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 16.0 μg/m3 (15) | 5.2 μg/m3 (22) | 40.0 | |
| Sept. 19, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (45) | N/A | 14.0 μg/m3 (13) | 4.8 μg/m3 (20) | 45.0 | |
| Sept. 19, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (47) | N/A | 12.0 μg/m3 (12) | 4.4 μg/m3 (19) | 47.0 | |
| Sept. 19, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 11.0 μg/m3 (11) | 4.1 μg/m3 (18) | 42.0 | |
| Sept. 19, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 12.0 μg/m3 (12) | 4.2 μg/m3 (18) | 38.0 | |
| Sept. 19, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | N/A | 17.0 μg/m3 (16) | 5.1 μg/m3 (22) | 37.0 | |
| Sept. 19, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 15.0 μg/m3 (14) | 4.5 μg/m3 (19) | 44.0 | |
| Sept. 19, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (45) | N/A | 15.0 μg/m3 (14) | 4.5 μg/m3 (19) | 45.0 | |
| Sept. 19, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (45) | N/A | 17.0 μg/m3 (16) | 4.5 μg/m3 (19) | 45.0 | |
| Sept. 18, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 15.0 μg/m3 (14) | 4.6 μg/m3 (20) | 44.0 | |
| Sept. 18, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 12.0 μg/m3 (12) | 4.4 μg/m3 (19) | 42.0 | |
| Sept. 18, 2021, 9 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) | 4.3 μg/m3 (18) | 40.0 | |
| Sept. 18, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 14.0 μg/m3 (13) | 4.5 μg/m3 (19) | 41.0 | |
| Sept. 18, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 16.0 μg/m3 (15) | 5.6 μg/m3 (24) | 44.0 | |
| Sept. 18, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (46) | N/A | 26.0 μg/m3 (25) | 9.1 μg/m3 (38) | 46.0 | |
| Sept. 18, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 28.0 μg/m3 (26) | 10.8 μg/m3 (46) | 46.0 | |
| Sept. 18, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | N/A | 24.0 μg/m3 (23) | 9.8 μg/m3 (41) | 41.0 | |
| Sept. 18, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (29) | N/A | 26.0 μg/m3 (25) | 9.6 μg/m3 (40) | 40.0 | |
| Sept. 18, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (22) | N/A | 29.0 μg/m3 (27) | 9.1 μg/m3 (38) | 38.0 | |
| Sept. 18, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 19.0 μg/m3 (18) | 8.6 μg/m3 (36) | 36.0 | |
| Sept. 18, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (24) | N/A | 18.0 μg/m3 (17) | 8.4 μg/m3 (36) | 36.0 | |
| Sept. 18, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (25) | N/A | 23.0 μg/m3 (22) | 9.1 μg/m3 (38) | 38.0 | |
| Sept. 18, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (25) | N/A | 27.0 μg/m3 (25) | 10.2 μg/m3 (43) | 43.0 | |
| Sept. 18, 2021, 9 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) | 8.8 μg/m3 (37) | 37.0 | |
| Sept. 18, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | N/A | 20.0 μg/m3 (19) | 8.6 μg/m3 (36) | 36.0 | |
| Sept. 18, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 16.0 μg/m3 (15) | 7.7 μg/m3 (33) | 36.0 | |
| Sept. 18, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (32) | N/A | 22.0 μg/m3 (21) | 8.5 μg/m3 (36) | 36.0 | |
| Sept. 18, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (27) | N/A | 39.0 μg/m3 (37) | 9.6 μg/m3 (40) | 40.0 | |
| Sept. 18, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (31) | N/A | 44.0 μg/m3 (41) | 9.1 μg/m3 (38) | 41.0 | |
| Sept. 18, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | N/A | 40.0 μg/m3 (38) | 8.9 μg/m3 (38) | 38.0 | |
| Sept. 18, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 24.0 μg/m3 (23) | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 18, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 20.0 μg/m3 (19) | 8.0 μg/m3 (34) | 44.0 | |
| Sept. 18, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 60.0 ppb (68) | N/A | 19.0 μg/m3 (18) | 7.8 μg/m3 (33) | 68.0 | |
| Sept. 17, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 61.0 ppb (71) | N/A | 19.0 μg/m3 (18) | 7.7 μg/m3 (33) | 71.0 | |
| Sept. 17, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (61) | N/A | 14.0 μg/m3 (13) | 6.8 μg/m3 (29) | 61.0 | |
| Sept. 17, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (46) | N/A | 14.0 μg/m3 (13) | 6.1 μg/m3 (26) | 46.0 | |
| Sept. 17, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 18.0 μg/m3 (17) | 6.4 μg/m3 (27) | 41.0 | |
| Sept. 17, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 16.0 μg/m3 (15) | 6.1 μg/m3 (26) | 36.0 | |
| Sept. 17, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 17.0 μg/m3 (16) | 6.4 μg/m3 (27) | 40.0 | |
| Sept. 17, 2021, 5 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) | 6.1 μg/m3 (26) | 41.0 | |
| Sept. 17, 2021, 4 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) | 5.2 μg/m3 (22) | 42.0 | |
| Sept. 17, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (31) | N/A | 42.0 μg/m3 (39) | 7.1 μg/m3 (30) | 39.0 | |
| Sept. 17, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 58.0 μg/m3 (53) | 8.9 μg/m3 (38) | 53.0 | |
| Sept. 17, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (22) | N/A | 43.0 μg/m3 (40) | 7.6 μg/m3 (32) | 40.0 | |
| Sept. 17, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | N/A | 32.0 μg/m3 (30) | 6.0 μg/m3 (25) | 35.0 | |
| Sept. 17, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 15.0 μg/m3 (14) | 4.0 μg/m3 (17) | 44.0 | |
| Sept. 17, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 14.0 μg/m3 (13) | 4.1 μg/m3 (18) | 43.0 | |
| Sept. 17, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 17.0 μg/m3 (16) | 4.1 μg/m3 (18) | 44.0 | |
| Sept. 17, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (46) | N/A | 16.0 μg/m3 (15) | 4.4 μg/m3 (19) | 46.0 | |
| Sept. 17, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (45) | N/A | 20.0 μg/m3 (19) | 4.8 μg/m3 (20) | 45.0 | |
| Sept. 17, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (45) | N/A | 18.0 μg/m3 (17) | 5.0 μg/m3 (21) | 45.0 | |
| Sept. 17, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (48) | N/A | 19.0 μg/m3 (18) | 5.3 μg/m3 (23) | 48.0 | |
| Sept. 17, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (50) | N/A | 25.0 μg/m3 (24) | 5.8 μg/m3 (25) | 50.0 | |
| Sept. 17, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (50) | N/A | 30.0 μg/m3 (28) | 6.7 μg/m3 (28) | 50.0 | |
| Sept. 17, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (55) | N/A | 28.0 μg/m3 (26) | 6.4 μg/m3 (27) | 55.0 | |
| Sept. 17, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (55) | N/A | 26.0 μg/m3 (25) | 5.6 μg/m3 (24) | 55.0 | |
| Sept. 17, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (51) | N/A | 21.0 μg/m3 (20) | 5.0 μg/m3 (21) | 51.0 | |
| Sept. 16, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (51) | N/A | 18.0 μg/m3 (17) | 4.7 μg/m3 (20) | 51.0 | |
| Sept. 16, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (61) | N/A | 20.0 μg/m3 (19) | 5.6 μg/m3 (24) | 61.0 | |
| Sept. 16, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 62.0 ppb (74) | N/A | 45.0 μg/m3 (42) | 12.0 μg/m3 (50) | 74.0 | |
| Sept. 16, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (55) | N/A | 45.0 μg/m3 (42) | 11.6 μg/m3 (49) | 55.0 | |
| Sept. 16, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 42.0 μg/m3 (39) | 8.7 μg/m3 (37) | 44.0 | |
| Sept. 16, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 55.0 μg/m3 (51) | 9.4 μg/m3 (40) | 51.0 | |
| Sept. 16, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (21) | N/A | 60.0 μg/m3 (54) | 10.0 μg/m3 (42) | 54.0 | |
| Sept. 16, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 47.0 μg/m3 (44) | 9.5 μg/m3 (40) | 44.0 | |
| Sept. 16, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (29) | N/A | 30.0 μg/m3 (28) | 8.7 μg/m3 (37) | 37.0 | |
| Sept. 16, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 31.0 μg/m3 (29) | 8.8 μg/m3 (37) | 37.0 | |
| Sept. 16, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | N/A | 34.0 μg/m3 (32) | 9.7 μg/m3 (41) | 41.0 | |
| Sept. 16, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | N/A | 42.0 μg/m3 (39) | 10.5 μg/m3 (44) | 44.0 | |
| Sept. 16, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | N/A | 28.0 μg/m3 (26) | 7.4 μg/m3 (31) | 42.0 | |
| Sept. 16, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (48) | N/A | 22.0 μg/m3 (21) | 7.3 μg/m3 (31) | 48.0 | |
| Sept. 16, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (49) | N/A | 21.0 μg/m3 (20) | 8.6 μg/m3 (36) | 49.0 | |
| Sept. 16, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (51) | N/A | 22.0 μg/m3 (21) | 8.8 μg/m3 (37) | 51.0 | |
| Sept. 16, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (61) | N/A | 21.0 μg/m3 (20) | 8.6 μg/m3 (36) | 61.0 | |
| Sept. 16, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (55) | N/A | 21.0 μg/m3 (20) | 9.0 μg/m3 (38) | 55.0 | |
| Sept. 16, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (55) | N/A | 23.0 μg/m3 (22) | 9.7 μg/m3 (41) | 55.0 | |
| Sept. 16, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (55) | N/A | 22.0 μg/m3 (21) | 10.0 μg/m3 (42) | 55.0 | |
| Sept. 16, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (61) | N/A | 22.0 μg/m3 (21) | 10.9 μg/m3 (46) | 61.0 | |
| Sept. 15, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 59.0 ppb (65) | N/A | 22.0 μg/m3 (21) | 11.1 μg/m3 (47) | 65.0 | |
| Sept. 15, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 61.0 ppb (71) | N/A | 22.0 μg/m3 (21) | 11.1 μg/m3 (47) | 71.0 | |
| Sept. 15, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 60.0 ppb (68) | N/A | 24.0 μg/m3 (23) | 11.0 μg/m3 (46) | 68.0 | |
| Sept. 15, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 64.0 ppb (81) | N/A | 27.0 μg/m3 (25) | 10.1 μg/m3 (43) | 81.0 | |
| Sept. 15, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 62.0 ppb (74) | N/A | 29.0 μg/m3 (27) | 9.0 μg/m3 (38) | 74.0 | |
| Sept. 15, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (51) | N/A | 25.0 μg/m3 (24) | 8.7 μg/m3 (37) | 51.0 | |
| Sept. 15, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (45) | N/A | 29.0 μg/m3 (27) | 8.9 μg/m3 (38) | 45.0 | |
| Sept. 15, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 25.0 μg/m3 (24) | 7.5 μg/m3 (32) | 40.0 | |
| Sept. 15, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 25.0 μg/m3 (24) | 7.8 μg/m3 (33) | 38.0 | |
| Sept. 15, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (25) | N/A | 29.0 μg/m3 (27) | 7.9 μg/m3 (33) | 33.0 | |
| Sept. 15, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (30) | N/A | 24.0 μg/m3 (23) | 6.9 μg/m3 (29) | 30.0 | |
| Sept. 15, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 18.0 μg/m3 (17) | 6.1 μg/m3 (26) | 34.0 | |
| Sept. 15, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | N/A | 14.0 μg/m3 (13) | 6.2 μg/m3 (26) | 35.0 | |
| Sept. 15, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 16.0 μg/m3 (15) | 5.4 μg/m3 (23) | 34.0 | |
| Sept. 15, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | N/A | 13.0 μg/m3 (13) | 5.2 μg/m3 (22) | 37.0 | |
| Sept. 15, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 14.0 μg/m3 (13) | 5.7 μg/m3 (24) | 41.0 | |
| Sept. 15, 2021, 7 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) | 5.3 μg/m3 (23) | 40.0 | |
| Sept. 15, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | N/A | 16.0 μg/m3 (15) | 5.0 μg/m3 (21) | 39.0 | |
| Sept. 15, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | N/A | 16.0 μg/m3 (15) | 5.4 μg/m3 (23) | 37.0 | |
| Sept. 15, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | N/A | 16.0 μg/m3 (15) | 5.3 μg/m3 (23) | 35.0 | |
| Sept. 15, 2021, 3 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) | 4.4 μg/m3 (19) | 46.0 | |
| Sept. 15, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (47) | N/A | 17.0 μg/m3 (16) | 4.6 μg/m3 (20) | 47.0 | |
| Sept. 15, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (48) | N/A | 15.0 μg/m3 (14) | 6.2 μg/m3 (26) | 48.0 | |
| Sept. 15, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (51) | N/A | 14.0 μg/m3 (13) | 6.1 μg/m3 (26) | 51.0 | |
| Sept. 14, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (51) | N/A | 15.0 μg/m3 (14) | 5.9 μg/m3 (25) | 51.0 | |
| Sept. 14, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (55) | N/A | 13.0 μg/m3 (13) | 5.3 μg/m3 (23) | 55.0 | |
| Sept. 14, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (51) | N/A | 16.0 μg/m3 (15) | 4.9 μg/m3 (21) | 51.0 | |
| Sept. 14, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 62.0 ppb (74) | N/A | 17.0 μg/m3 (16) | 3.5 μg/m3 (15) | 74.0 | |
| Sept. 14, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 62.0 ppb (74) | N/A | 20.0 μg/m3 (19) | 3.5 μg/m3 (15) | 74.0 | |
| Sept. 14, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (51) | N/A | 22.0 μg/m3 (21) | 3.6 μg/m3 (16) | 51.0 | |
| Sept. 14, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (46) | N/A | 18.0 μg/m3 (17) | 3.7 μg/m3 (16) | 46.0 | |
| Sept. 14, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (45) | N/A | 16.0 μg/m3 (15) | 3.5 μg/m3 (15) | 45.0 | |
| Sept. 14, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 24.0 μg/m3 (23) | 4.0 μg/m3 (17) | 38.0 | |
| Sept. 14, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 126.0 μg/m3 (87) | 10.5 μg/m3 (44) | 87.0 | |
| Sept. 14, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (21) | N/A | 48.0 μg/m3 (45) | 5.4 μg/m3 (23) | 45.0 | |
| Sept. 14, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (30) | N/A | 17.0 μg/m3 (16) | 3.7 μg/m3 (16) | 30.0 |