Phoenix (Estrella) AZ, US: 33.4265, -112.1181
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 25, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 73.4 μg/m3 (61) | 8.7 μg/m3 (37) | 61.0 | |
| Feb. 25, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 82.0 μg/m3 (65) | 10.3 μg/m3 (43) | 65.0 | |
| Feb. 25, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 56.3 μg/m3 (52) | 7.7 μg/m3 (33) | 52.0 | |
| Feb. 25, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 42.8 μg/m3 (40) | 7.7 μg/m3 (33) | 40.0 | |
| Feb. 25, 2021, noon | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 53.5 μg/m3 (50) | 12.0 μg/m3 (50) | 50.0 | |
| Feb. 25, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 38.5 μg/m3 (36) | 9.4 μg/m3 (40) | 40.0 | |
| Feb. 25, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 24.7 μg/m3 (23) | 9.1 μg/m3 (38) | 38.0 | |
| Feb. 25, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 36.2 μg/m3 (34) | 14.4 μg/m3 (56) | 56.0 | |
| Feb. 25, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 53.8 μg/m3 (50) | 18.2 μg/m3 (64) | 64.0 | |
| Feb. 25, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | 61.3 μg/m3 (55) | 20.9 μg/m3 (70) | 70.0 | |
| Feb. 25, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 61.2 μg/m3 (55) | 19.2 μg/m3 (66) | 66.0 | |
| Feb. 25, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 53.5 μg/m3 (50) | 18.0 μg/m3 (64) | 64.0 | |
| Feb. 25, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 45.5 μg/m3 (43) | 18.5 μg/m3 (65) | 65.0 | |
| Feb. 25, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 33.9 μg/m3 (32) | 11.1 μg/m3 (47) | 47.0 | |
| Feb. 25, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 12.3 μg/m3 (12) | 2.7 μg/m3 (12) | 12.0 | |
| Feb. 25, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 8.5 μg/m3 (8) | 0.6 μg/m3 (3) | 8.0 | |
| Feb. 25, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 15.2 μg/m3 (15) | 3.9 μg/m3 (17) | 17.0 | |
| Feb. 24, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 14.7 μg/m3 (14) | 0.6 μg/m3 (3) | 14.0 | |
| Feb. 24, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 14.5 μg/m3 (14) | 1.5 μg/m3 (7) | 14.0 | |
| Feb. 24, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 24.8 μg/m3 (23) | 5.1 μg/m3 (22) | 23.0 | |
| Feb. 24, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 40.9 μg/m3 (38) | 8.6 μg/m3 (36) | 38.0 | |
| Feb. 24, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 46.6 μg/m3 (44) | 10.7 μg/m3 (45) | 45.0 | |
| Feb. 24, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 72.5 μg/m3 (60) | 15.9 μg/m3 (59) | 60.0 | |
| Feb. 24, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 99.2 μg/m3 (73) | 24.4 μg/m3 (77) | 77.0 | |
| Feb. 24, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 119.8 μg/m3 (84) | 22.9 μg/m3 (74) | 84.0 | |
| Feb. 24, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | 182.4 μg/m3 (115) | 31.0 μg/m3 (91) | 115.0 | |
| Feb. 24, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | 292.9 μg/m3 (170) | 42.1 μg/m3 (118) | 170.0 | |
| Feb. 24, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | 97.7 μg/m3 (73) | 18.5 μg/m3 (65) | 73.0 | |
| Feb. 24, 2021, noon | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 44.7 μg/m3 (42) | 11.9 μg/m3 (50) | 50.0 | |
| Feb. 24, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 43.1 μg/m3 (40) | 11.7 μg/m3 (49) | 49.0 | |
| Feb. 24, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 30.7 μg/m3 (29) | 11.2 μg/m3 (47) | 47.0 | |
| Feb. 24, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 40.0 μg/m3 (38) | 15.1 μg/m3 (58) | 58.0 | |
| Feb. 24, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 59.0 μg/m3 (53) | 22.3 μg/m3 (73) | 73.0 | |
| Feb. 24, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | 70.3 μg/m3 (59) | 22.5 μg/m3 (73) | 73.0 | |
| Feb. 24, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 95.5 μg/m3 (72) | 23.8 μg/m3 (76) | 76.0 | |
| Feb. 24, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 68.2 μg/m3 (58) | 19.7 μg/m3 (67) | 67.0 | |
| Feb. 24, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 58.9 μg/m3 (53) | 13.7 μg/m3 (55) | 55.0 | |
| Feb. 24, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 84.9 μg/m3 (66) | 17.7 μg/m3 (63) | 66.0 | |
| Feb. 24, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 42.4 μg/m3 (40) | 4.9 μg/m3 (21) | 40.0 | |
| Feb. 24, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 13.6 μg/m3 (13) | 0.4 μg/m3 (2) | 13.0 | |
| Feb. 24, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 10.3 μg/m3 (10) | 2.0 μg/m3 (9) | 10.0 | |
| Feb. 23, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 9.3 μg/m3 (9) | 0.8 μg/m3 (4) | 9.0 | |
| Feb. 23, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 22.0 μg/m3 (21) | 3.0 μg/m3 (13) | 21.0 | |
| Feb. 23, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 26.9 μg/m3 (25) | 6.2 μg/m3 (26) | 26.0 | |
| Feb. 23, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 30.9 μg/m3 (29) | 8.4 μg/m3 (36) | 36.0 | |
| Feb. 23, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 34.5 μg/m3 (32) | 7.1 μg/m3 (30) | 32.0 | |
| Feb. 23, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 39.7 μg/m3 (37) | 9.3 μg/m3 (39) | 39.0 | |
| Feb. 23, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 42.8 μg/m3 (40) | 9.1 μg/m3 (38) | 40.0 | |
| Feb. 23, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 55.8 μg/m3 (52) | 14.5 μg/m3 (57) | 57.0 | |
| Feb. 23, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 100.6 μg/m3 (74) | 20.8 μg/m3 (70) | 74.0 | |
| Feb. 23, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | 130.1 μg/m3 (89) | 25.4 μg/m3 (79) | 89.0 | |
| Feb. 23, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | 75.9 μg/m3 (62) | 17.6 μg/m3 (63) | 63.0 | |
| Feb. 23, 2021, noon | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 107.0 μg/m3 (77) | 21.7 μg/m3 (72) | 77.0 | |
| Feb. 23, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 59.6 μg/m3 (54) | 16.8 μg/m3 (61) | 61.0 | |
| Feb. 23, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 39.8 μg/m3 (37) | 13.8 μg/m3 (55) | 55.0 | |
| Feb. 23, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 46.7 μg/m3 (44) | 16.9 μg/m3 (62) | 62.0 | |
| Feb. 23, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 49.6 μg/m3 (46) | 17.6 μg/m3 (63) | 63.0 | |
| Feb. 23, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 79.6 μg/m3 (64) | 24.3 μg/m3 (77) | 77.0 | |
| Feb. 23, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 70.6 μg/m3 (59) | 18.0 μg/m3 (64) | 64.0 | |
| Feb. 23, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 56.8 μg/m3 (52) | 16.0 μg/m3 (60) | 60.0 | |
| Feb. 23, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 53.9 μg/m3 (50) | 12.6 μg/m3 (53) | 53.0 | |
| Feb. 23, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 30.3 μg/m3 (29) | 5.9 μg/m3 (25) | 29.0 | |
| Feb. 23, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 32.1 μg/m3 (30) | 6.1 μg/m3 (26) | 30.0 | |
| Feb. 23, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 21.4 μg/m3 (20) | 4.9 μg/m3 (21) | 21.0 | |
| Feb. 23, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 15.7 μg/m3 (15) | 6.2 μg/m3 (26) | 26.0 | |
| Feb. 22, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 11.3 μg/m3 (11) | 2.6 μg/m3 (11) | 11.0 | |
| Feb. 22, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 11.3 μg/m3 (11) | 3.1 μg/m3 (13) | 13.0 | |
| Feb. 22, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 9.9 μg/m3 (10) | 2.3 μg/m3 (10) | 10.0 | |
| Feb. 22, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 12.1 μg/m3 (12) | 2.4 μg/m3 (10) | 12.0 | |
| Feb. 22, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 16.8 μg/m3 (16) | 3.2 μg/m3 (14) | 16.0 | |
| Feb. 22, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 33.7 μg/m3 (32) | 9.4 μg/m3 (40) | 40.0 | |
| Feb. 22, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 71.8 μg/m3 (60) | 18.4 μg/m3 (65) | 65.0 | |
| Feb. 22, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 216.2 μg/m3 (132) | 43.2 μg/m3 (120) | 132.0 | |
| Feb. 22, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (8) | N/A | N/A | 273.0 μg/m3 (160) | 50.5 μg/m3 (138) | 160.0 | |
| Feb. 22, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (10) | N/A | N/A | 177.1 μg/m3 (112) | 39.4 μg/m3 (111) | 112.0 | |
| Feb. 22, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 6.0 ppb (9) | N/A | N/A | 112.4 μg/m3 (80) | 28.3 μg/m3 (86) | 86.0 | |
| Feb. 22, 2021, noon | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | 77.7 μg/m3 (63) | 20.1 μg/m3 (68) | 68.0 | |
| Feb. 22, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 36.2 μg/m3 (34) | 13.6 μg/m3 (55) | 55.0 | |
| Feb. 22, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 35.7 μg/m3 (34) | 13.6 μg/m3 (55) | 55.0 | |
| Feb. 22, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 22.3 μg/m3 (21) | 10.0 μg/m3 (42) | 42.0 | |
| Feb. 22, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 20.6 μg/m3 (20) | 9.2 μg/m3 (39) | 39.0 | |
| Feb. 22, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 15.8 μg/m3 (15) | 6.1 μg/m3 (26) | 26.0 | |
| Feb. 22, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 22.2 μg/m3 (21) | 8.8 μg/m3 (37) | 37.0 | |
| Feb. 22, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 41.5 μg/m3 (39) | 11.5 μg/m3 (48) | 48.0 | |
| Feb. 22, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 25.6 μg/m3 (24) | 5.7 μg/m3 (24) | 24.0 | |
| Feb. 22, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 26.6 μg/m3 (25) | 4.3 μg/m3 (18) | 25.0 | |
| Feb. 22, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 13.8 μg/m3 (13) | 2.1 μg/m3 (9) | 13.0 | |
| Feb. 22, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 7.3 μg/m3 (7) | 3.1 μg/m3 (13) | 13.0 | |
| Feb. 22, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 5.1 μg/m3 (5) | 3.5 μg/m3 (15) | 15.0 | |
| Feb. 21, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 2.2 μg/m3 (3) | 0.4 μg/m3 (2) | 3.0 | |
| Feb. 21, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 1.5 μg/m3 (2) | 0.2 μg/m3 (1) | 2.0 | |
| Feb. 21, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 0.8 μg/m3 (1) | -0.3 μg/m3 (0) | 1.0 | |
| Feb. 21, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 0.2 μg/m3 (1) | -1.3 μg/m3 (0) | 1.0 | |
| Feb. 21, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 1.6 μg/m3 (2) | -0.3 μg/m3 (0) | 2.0 | |
| Feb. 21, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 5.2 μg/m3 (5) | 2.4 μg/m3 (10) | 10.0 | |
| Feb. 21, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 5.7 μg/m3 (6) | 0.5 μg/m3 (3) | 6.0 | |
| Feb. 21, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 12.9 μg/m3 (12) | 3.3 μg/m3 (14) | 14.0 | |
| Feb. 21, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 14.1 μg/m3 (14) | 3.8 μg/m3 (16) | 16.0 | |
| Feb. 21, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 9.2 μg/m3 (9) | 2.3 μg/m3 (10) | 10.0 | |
| Feb. 21, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 9.6 μg/m3 (9) | 2.8 μg/m3 (12) | 12.0 | |
| Feb. 21, 2021, noon | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 5.9 μg/m3 (6) | 2.3 μg/m3 (10) | 10.0 | |
| Feb. 21, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 7.9 μg/m3 (8) | 2.8 μg/m3 (12) | 12.0 | |
| Feb. 21, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 10.7 μg/m3 (10) | 2.3 μg/m3 (10) | 10.0 | |
| Feb. 21, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 15.7 μg/m3 (15) | 3.7 μg/m3 (16) | 16.0 | |
| Feb. 21, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 14.0 μg/m3 (13) | 3.9 μg/m3 (17) | 17.0 | |
| Feb. 21, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 14.5 μg/m3 (14) | 4.0 μg/m3 (17) | 17.0 | |
| Feb. 21, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 20.4 μg/m3 (19) | 3.4 μg/m3 (15) | 19.0 | |
| Feb. 21, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 30.7 μg/m3 (29) | 5.1 μg/m3 (22) | 29.0 | |
| Feb. 21, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 37.5 μg/m3 (35) | 7.6 μg/m3 (32) | 35.0 | |
| Feb. 21, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 90.1 μg/m3 (69) | 13.8 μg/m3 (55) | 69.0 | |
| Feb. 21, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 106.7 μg/m3 (77) | 12.4 μg/m3 (52) | 77.0 | |
| Feb. 21, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 63.7 μg/m3 (56) | 1.9 μg/m3 (8) | 56.0 | |
| Feb. 21, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 54.0 μg/m3 (50) | 1.6 μg/m3 (7) | 50.0 | |
| Feb. 20, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 101.8 μg/m3 (75) | 4.3 μg/m3 (18) | 75.0 | |
| Feb. 20, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 76.7 μg/m3 (62) | 3.3 μg/m3 (14) | 62.0 | |
| Feb. 20, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 29.1 μg/m3 (27) | 4.6 μg/m3 (20) | 27.0 | |
| Feb. 20, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 24.9 μg/m3 (24) | 6.9 μg/m3 (29) | 29.0 | |
| Feb. 20, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 35.8 μg/m3 (34) | 12.2 μg/m3 (52) | 52.0 | |
| Feb. 20, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 26.8 μg/m3 (25) | 5.6 μg/m3 (24) | 25.0 | |
| Feb. 20, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 26.8 μg/m3 (25) | 4.7 μg/m3 (20) | 25.0 | |
| Feb. 20, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 54.1 μg/m3 (51) | 13.6 μg/m3 (55) | 55.0 | |
| Feb. 20, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 134.8 μg/m3 (91) | 33.2 μg/m3 (96) | 96.0 | |
| Feb. 20, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 183.1 μg/m3 (115) | 38.7 μg/m3 (109) | 115.0 | |
| Feb. 20, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 39.0 μg/m3 (37) | 15.0 μg/m3 (58) | 58.0 | |
| Feb. 20, 2021, noon | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 22.3 μg/m3 (21) | 8.4 μg/m3 (36) | 36.0 | |
| Feb. 20, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 22.2 μg/m3 (21) | 9.6 μg/m3 (40) | 40.0 | |
| Feb. 20, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 51.4 μg/m3 (48) | 21.4 μg/m3 (71) | 71.0 | |
| Feb. 20, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 60.0 μg/m3 (54) | 29.0 μg/m3 (87) | 87.0 | |
| Feb. 20, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 64.6 μg/m3 (56) | 29.2 μg/m3 (87) | 87.0 | |
| Feb. 20, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 80.0 μg/m3 (64) | 33.5 μg/m3 (97) | 97.0 | |
| Feb. 20, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 85.2 μg/m3 (66) | 27.7 μg/m3 (84) | 84.0 | |
| Feb. 20, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 75.5 μg/m3 (62) | 26.4 μg/m3 (82) | 82.0 | |
| Feb. 20, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 66.3 μg/m3 (57) | 18.0 μg/m3 (64) | 64.0 | |
| Feb. 20, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 42.4 μg/m3 (40) | 10.4 μg/m3 (44) | 44.0 | |
| Feb. 20, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 23.6 μg/m3 (22) | 6.1 μg/m3 (26) | 26.0 | |
| Feb. 20, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 14.9 μg/m3 (14) | 3.9 μg/m3 (17) | 17.0 | |
| Feb. 20, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 14.3 μg/m3 (14) | 2.8 μg/m3 (12) | 14.0 | |
| Feb. 19, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 16.1 μg/m3 (15) | 4.2 μg/m3 (18) | 18.0 | |
| Feb. 19, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 19.6 μg/m3 (19) | 4.3 μg/m3 (18) | 19.0 | |
| Feb. 19, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 16.4 μg/m3 (16) | 3.7 μg/m3 (16) | 16.0 | |
| Feb. 19, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 12.6 μg/m3 (12) | 0.7 μg/m3 (3) | 12.0 | |
| Feb. 19, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 17.8 μg/m3 (17) | 5.8 μg/m3 (25) | 25.0 | |
| Feb. 19, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 31.9 μg/m3 (30) | 6.5 μg/m3 (28) | 30.0 | |
| Feb. 19, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 47.5 μg/m3 (44) | 12.2 μg/m3 (52) | 52.0 | |
| Feb. 19, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 78.3 μg/m3 (63) | 22.8 μg/m3 (74) | 74.0 | |
| Feb. 19, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 96.7 μg/m3 (72) | 32.1 μg/m3 (94) | 94.0 | |
| Feb. 19, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 149.0 μg/m3 (98) | 24.7 μg/m3 (78) | 98.0 | |
| Feb. 19, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (5) | N/A | N/A | 167.4 μg/m3 (108) | 30.7 μg/m3 (91) | 108.0 | |
| Feb. 19, 2021, noon | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 42.9 μg/m3 (40) | 13.9 μg/m3 (55) | 55.0 | |
| Feb. 19, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 29.1 μg/m3 (27) | 12.3 μg/m3 (52) | 52.0 | |
| Feb. 19, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 30.6 μg/m3 (29) | 11.7 μg/m3 (49) | 49.0 | |
| Feb. 19, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 11.8 μg/m3 (11) | 4.1 μg/m3 (18) | 18.0 | |
| Feb. 19, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 12.8 μg/m3 (12) | 4.3 μg/m3 (18) | 18.0 | |
| Feb. 19, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 44.9 μg/m3 (42) | 12.4 μg/m3 (52) | 52.0 | |
| Feb. 19, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 79.2 μg/m3 (63) | 19.2 μg/m3 (66) | 66.0 | |
| Feb. 19, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | N/A | N/A | 67.7 μg/m3 (58) | 14.5 μg/m3 (57) | 58.0 | |
| Feb. 19, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 39.3 μg/m3 (37) | 9.4 μg/m3 (40) | 40.0 | |
| Feb. 19, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 22.8 μg/m3 (22) | 4.2 μg/m3 (18) | 22.0 | |
| Feb. 19, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 13.9 μg/m3 (13) | 1.3 μg/m3 (6) | 13.0 | |
| Feb. 19, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 7.1 μg/m3 (7) | 1.5 μg/m3 (7) | 7.0 | |
| Feb. 19, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 4.5 μg/m3 (5) | -0.3 μg/m3 (0) | 5.0 | |
| Feb. 18, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 1.0 μg/m3 (1) | -1.6 μg/m3 (0) | 1.0 | |
| Feb. 18, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 3.3 μg/m3 (4) | 1.3 μg/m3 (6) | 6.0 | |
| Feb. 18, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 3.5 μg/m3 (4) | -0.2 μg/m3 (0) | 4.0 | |
| Feb. 18, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 6.9 μg/m3 (7) | 1.9 μg/m3 (8) | 8.0 | |
| Feb. 18, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 10.8 μg/m3 (10) | 2.2 μg/m3 (10) | 10.0 | |
| Feb. 18, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | |
| Feb. 18, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |