Chandler (Villa Pallavicini) AZ, US: 33.299, -111.8843
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| May 14, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (55) | 0.3 ppb (4) | 25.7 μg/m3 (24) | N/A | 55.0 | |
| May 14, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (61) | 0.3 ppb (4) | 28.6 μg/m3 (27) | N/A | 61.0 | |
| May 14, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 59.0 ppb (65) | 0.3 ppb (4) | 26.8 μg/m3 (25) | N/A | 65.0 | |
| May 14, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (55) | 0.2 ppb (3) | 29.0 μg/m3 (27) | N/A | 55.0 | |
| May 14, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (47) | 0.3 ppb (4) | 33.4 μg/m3 (31) | N/A | 47.0 | |
| May 14, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | 0.3 ppb (4) | 46.3 μg/m3 (43) | N/A | 43.0 | |
| May 14, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | 0.4 ppb (5) | 58.6 μg/m3 (53) | N/A | 53.0 | |
| May 14, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (20) | 0.4 ppb (5) | 70.9 μg/m3 (59) | N/A | 59.0 | |
| May 14, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 ppb (13) | 0.4 ppb (5) | 58.0 μg/m3 (53) | N/A | 53.0 | |
| May 14, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (21) | 0.4 ppb (5) | 41.3 μg/m3 (39) | N/A | 39.0 | |
| May 14, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (25) | 0.3 ppb (4) | 36.6 μg/m3 (34) | N/A | 34.0 | |
| May 14, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (22) | 0.3 ppb (4) | 35.9 μg/m3 (34) | N/A | 34.0 | |
| May 14, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (19) | 0.4 ppb (5) | 36.4 μg/m3 (34) | N/A | 34.0 | |
| May 14, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (22) | 0.4 ppb (5) | 36.1 μg/m3 (34) | N/A | 34.0 | |
| May 14, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | 0.4 ppb (5) | 35.6 μg/m3 (33) | N/A | 33.0 | |
| May 14, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | 0.4 ppb (5) | 37.7 μg/m3 (35) | N/A | 35.0 | |
| May 14, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | 0.3 ppb (4) | 34.9 μg/m3 (33) | N/A | 44.0 | |
| May 14, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (46) | 0.3 ppb (4) | 30.6 μg/m3 (29) | N/A | 46.0 | |
| May 14, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | 0.4 ppb (5) | 36.5 μg/m3 (34) | N/A | 42.0 | |
| May 14, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (55) | 0.3 ppb (4) | 34.7 μg/m3 (33) | N/A | 55.0 | |
| May 14, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 67.0 ppb (91) | 0.3 ppb (4) | 36.5 μg/m3 (34) | N/A | 91.0 | |
| May 14, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 64.0 ppb (81) | 0.3 ppb (4) | 34.9 μg/m3 (33) | N/A | 81.0 | |
| May 13, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 62.0 ppb (74) | 0.3 ppb (4) | 32.6 μg/m3 (31) | N/A | 74.0 | |
| May 13, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 62.0 ppb (74) | 0.3 ppb (4) | 25.1 μg/m3 (24) | N/A | 74.0 | |
| May 13, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 64.0 ppb (81) | 0.3 ppb (4) | 19.3 μg/m3 (18) | N/A | 81.0 | |
| May 13, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 65.0 ppb (84) | 0.3 ppb (4) | 31.9 μg/m3 (30) | N/A | 84.0 | |
| May 13, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 59.0 ppb (65) | 0.3 ppb (4) | 31.1 μg/m3 (29) | N/A | 65.0 | |
| May 13, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (50) | 0.3 ppb (4) | 27.4 μg/m3 (26) | N/A | 50.0 | |
| May 13, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (44) | 0.3 ppb (4) | 33.5 μg/m3 (32) | N/A | 44.0 | |
| May 13, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | 0.3 ppb (4) | 52.6 μg/m3 (49) | N/A | 49.0 | |
| May 13, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (25) | 0.3 ppb (4) | 63.2 μg/m3 (56) | N/A | 56.0 | |
| May 13, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (16) | 0.4 ppb (5) | 62.7 μg/m3 (55) | N/A | 55.0 | |
| May 13, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 ppb (12) | 0.4 ppb (5) | 49.6 μg/m3 (46) | N/A | 46.0 | |
| May 13, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (14) | 0.3 ppb (4) | 41.7 μg/m3 (39) | N/A | 39.0 | |
| May 13, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (18) | 0.3 ppb (4) | 40.5 μg/m3 (38) | N/A | 38.0 | |
| May 13, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (22) | 0.3 ppb (4) | 35.2 μg/m3 (33) | N/A | 33.0 | |
| May 13, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (25) | 0.3 ppb (4) | 34.2 μg/m3 (32) | N/A | 32.0 | |
| May 13, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (24) | 0.3 ppb (4) | 32.8 μg/m3 (31) | N/A | 31.0 | |
| May 13, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (26) | 0.3 ppb (4) | 32.0 μg/m3 (30) | N/A | 30.0 | |
| May 13, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (30) | 0.4 ppb (5) | 38.3 μg/m3 (36) | N/A | 36.0 | |
| May 13, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (15) | 0.6 ppb (7) | 46.0 μg/m3 (43) | N/A | 43.0 | |
| May 13, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (24) | 0.6 ppb (7) | 43.0 μg/m3 (40) | N/A | 40.0 | |
| May 13, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (32) | 0.5 ppb (6) | 32.1 μg/m3 (30) | N/A | 32.0 | |
| May 13, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (46) | 0.4 ppb (5) | 25.5 μg/m3 (24) | N/A | 46.0 | |
| May 13, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 63.0 ppb (78) | 0.3 ppb (4) | 21.0 μg/m3 (20) | N/A | 78.0 | |
| May 13, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 63.0 ppb (78) | 0.3 ppb (4) | 18.9 μg/m3 (18) | N/A | 78.0 | |
| May 12, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 65.0 ppb (84) | 0.3 ppb (4) | 20.0 μg/m3 (19) | N/A | 84.0 | |
| May 12, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 62.0 ppb (74) | 0.3 ppb (4) | 20.5 μg/m3 (19) | N/A | 74.0 | |
| May 12, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 62.0 ppb (74) | 0.3 ppb (4) | 22.2 μg/m3 (21) | N/A | 74.0 | |
| May 12, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 63.0 ppb (78) | 0.3 ppb (4) | 22.1 μg/m3 (21) | N/A | 78.0 | |
| May 12, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 62.0 ppb (74) | 0.3 ppb (4) | 29.8 μg/m3 (28) | N/A | 74.0 | |
| May 12, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (51) | 0.3 ppb (4) | 63.6 μg/m3 (56) | N/A | 56.0 | |
| May 12, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | 0.6 ppb (7) | 57.2 μg/m3 (53) | N/A | 53.0 | |
| May 12, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (30) | 0.4 ppb (5) | N/A | N/A | 30.0 | |
| May 12, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (20) | 0.4 ppb (5) | N/A | N/A | 20.0 | |
| May 12, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 71.5 μg/m3 (60) | N/A | 60.0 | |
| May 12, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 ppb (13) | 0.4 ppb (5) | 62.4 μg/m3 (55) | N/A | 55.0 | |
| May 12, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (9) | 0.5 ppb (6) | 54.5 μg/m3 (51) | N/A | 51.0 | |
| May 12, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (7) | 0.5 ppb (6) | 86.8 μg/m3 (67) | N/A | 67.0 | |
| May 12, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 ppb (6) | 0.6 ppb (7) | 60.0 μg/m3 (54) | N/A | 54.0 | |
| May 12, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (8) | 0.6 ppb (7) | 51.0 μg/m3 (48) | N/A | 48.0 | |
| May 12, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 ppb (11) | 0.6 ppb (7) | 47.2 μg/m3 (44) | N/A | 44.0 | |
| May 12, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 ppb (13) | 0.6 ppb (7) | 50.2 μg/m3 (47) | N/A | 47.0 | |
| May 12, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (20) | 0.6 ppb (7) | 59.7 μg/m3 (54) | N/A | 54.0 | |
| May 12, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (29) | 0.5 ppb (6) | 53.9 μg/m3 (50) | N/A | 50.0 | |
| May 12, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (40) | 0.4 ppb (5) | 39.8 μg/m3 (37) | N/A | 40.0 | |
| May 12, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (49) | 0.4 ppb (5) | 37.6 μg/m3 (35) | N/A | 49.0 | |
| May 12, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 61.0 ppb (71) | 0.3 ppb (4) | 36.0 μg/m3 (34) | N/A | 71.0 | |
| May 12, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 65.0 ppb (84) | 0.3 ppb (4) | 29.8 μg/m3 (28) | N/A | 84.0 | |
| May 12, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 63.0 ppb (78) | 0.2 ppb (3) | 30.0 μg/m3 (28) | N/A | 78.0 | |
| May 11, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 61.0 ppb (71) | 0.2 ppb (3) | 24.8 μg/m3 (23) | N/A | 71.0 | |
| May 11, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 60.0 ppb (68) | 0.2 ppb (3) | 22.1 μg/m3 (21) | N/A | 68.0 | |
| May 11, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 62.0 ppb (74) | 0.3 ppb (4) | 24.5 μg/m3 (23) | N/A | 74.0 | |
| May 11, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 62.0 ppb (74) | 0.2 ppb (3) | 22.3 μg/m3 (21) | N/A | 74.0 | |
| May 11, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 61.0 ppb (71) | 0.3 ppb (4) | 22.1 μg/m3 (21) | N/A | 71.0 | |
| May 11, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (61) | 0.2 ppb (3) | 24.8 μg/m3 (23) | N/A | 61.0 | |
| May 11, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (50) | 0.3 ppb (4) | 26.7 μg/m3 (25) | N/A | 50.0 | |
| May 11, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (46) | 0.3 ppb (4) | 29.4 μg/m3 (28) | N/A | 46.0 | |
| May 11, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | 0.3 ppb (4) | 43.2 μg/m3 (40) | N/A | 40.0 | |
| May 11, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (23) | 0.4 ppb (5) | 84.1 μg/m3 (66) | N/A | 66.0 | |
| May 11, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (16) | 0.4 ppb (5) | 53.0 μg/m3 (50) | N/A | 50.0 | |
| May 11, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (15) | 0.3 ppb (4) | 41.3 μg/m3 (39) | N/A | 39.0 | |
| May 11, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (22) | 0.3 ppb (4) | 36.4 μg/m3 (34) | N/A | 34.0 | |
| May 11, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (30) | 0.3 ppb (4) | 30.3 μg/m3 (29) | N/A | 30.0 | |
| May 11, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | 0.3 ppb (4) | 29.4 μg/m3 (28) | N/A | 35.0 | |
| May 11, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | 0.2 ppb (3) | 33.7 μg/m3 (32) | N/A | 37.0 | |
| May 11, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | 0.3 ppb (4) | 30.8 μg/m3 (29) | N/A | 33.0 | |
| May 11, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (31) | 0.3 ppb (4) | 23.6 μg/m3 (22) | N/A | 31.0 | |
| May 11, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (31) | 0.3 ppb (4) | 31.4 μg/m3 (30) | N/A | 31.0 | |
| May 11, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | 0.3 ppb (4) | 38.6 μg/m3 (36) | N/A | 41.0 | |
| May 11, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (45) | 0.3 ppb (4) | 37.8 μg/m3 (35) | N/A | 45.0 | |
| May 11, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (48) | 0.3 ppb (4) | 26.6 μg/m3 (25) | N/A | 48.0 | |
| May 11, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (50) | 0.2 ppb (3) | 24.3 μg/m3 (23) | N/A | 50.0 | |
| May 11, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (50) | 0.2 ppb (3) | 21.3 μg/m3 (20) | N/A | 50.0 | |
| May 10, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (50) | 0.2 ppb (3) | 24.0 μg/m3 (23) | N/A | 50.0 | |
| May 10, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (50) | 0.2 ppb (3) | 27.8 μg/m3 (26) | N/A | 50.0 | |
| May 10, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (50) | 0.2 ppb (3) | 19.1 μg/m3 (18) | N/A | 50.0 | |
| May 10, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (49) | 0.2 ppb (3) | 17.0 μg/m3 (16) | N/A | 49.0 | |
| May 10, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (50) | 0.2 ppb (3) | 16.9 μg/m3 (16) | N/A | 50.0 | |
| May 10, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (49) | 0.2 ppb (3) | 18.7 μg/m3 (18) | N/A | 49.0 | |
| May 10, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (46) | 0.2 ppb (3) | 16.8 μg/m3 (16) | N/A | 46.0 | |
| May 10, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | 0.3 ppb (4) | 38.9 μg/m3 (37) | N/A | 42.0 | |
| May 10, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (33) | 0.3 ppb (4) | 56.5 μg/m3 (52) | N/A | 52.0 | |
| May 10, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (25) | 0.4 ppb (5) | 61.1 μg/m3 (55) | N/A | 55.0 | |
| May 10, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (21) | 0.3 ppb (4) | 55.8 μg/m3 (52) | N/A | 52.0 | |
| May 10, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (21) | 0.3 ppb (4) | 70.6 μg/m3 (59) | N/A | 59.0 | |
| May 10, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | 0.2 ppb (3) | 129.2 μg/m3 (88) | N/A | 88.0 | |
| May 10, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | 0.2 ppb (3) | 31.9 μg/m3 (30) | N/A | 34.0 | |
| May 10, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | 0.2 ppb (3) | 22.9 μg/m3 (22) | N/A | 37.0 | |
| May 10, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | 0.2 ppb (3) | 31.8 μg/m3 (30) | N/A | 38.0 | |
| May 10, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | 0.2 ppb (3) | 28.7 μg/m3 (27) | N/A | 35.0 | |
| May 10, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (27) | 0.3 ppb (4) | 21.5 μg/m3 (20) | N/A | 27.0 | |
| May 10, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | 0.3 ppb (4) | 21.2 μg/m3 (20) | N/A | 36.0 | |
| May 10, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | 0.3 ppb (4) | 26.7 μg/m3 (25) | N/A | 36.0 | |
| May 10, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | 0.3 ppb (4) | 25.2 μg/m3 (24) | N/A | 41.0 | |
| May 10, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (48) | 0.3 ppb (4) | 23.5 μg/m3 (22) | N/A | 48.0 | |
| May 10, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 57.0 ppb (58) | 0.2 ppb (3) | 19.5 μg/m3 (19) | N/A | 58.0 | |
| May 10, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (61) | 0.2 ppb (3) | 17.5 μg/m3 (17) | N/A | 61.0 | |
| May 9, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 57.0 ppb (58) | 0.2 ppb (3) | 13.8 μg/m3 (13) | N/A | 58.0 | |
| May 9, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (51) | 0.2 ppb (3) | 16.6 μg/m3 (16) | N/A | 51.0 | |
| May 9, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (50) | 0.2 ppb (3) | 18.8 μg/m3 (18) | N/A | 50.0 | |
| May 9, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (50) | 0.2 ppb (3) | 19.4 μg/m3 (18) | N/A | 50.0 | |
| May 9, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (50) | 0.3 ppb (4) | 16.7 μg/m3 (16) | N/A | 50.0 | |
| May 9, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (48) | 0.3 ppb (4) | 16.1 μg/m3 (15) | N/A | 48.0 | |
| May 9, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (46) | 0.3 ppb (4) | 23.1 μg/m3 (22) | N/A | 46.0 | |
| May 9, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | 0.3 ppb (4) | 23.0 μg/m3 (22) | N/A | 41.0 | |
| May 9, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | 0.3 ppb (4) | 24.4 μg/m3 (23) | N/A | 36.0 | |
| May 9, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (30) | 0.3 ppb (4) | 40.0 μg/m3 (38) | N/A | 38.0 | |
| May 9, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (15) | 0.4 ppb (5) | 41.8 μg/m3 (39) | N/A | 39.0 | |
| May 9, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (17) | 0.3 ppb (4) | 34.8 μg/m3 (33) | N/A | 33.0 | |
| May 9, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (20) | 0.3 ppb (4) | 30.4 μg/m3 (29) | N/A | 29.0 | |
| May 9, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (20) | 0.3 ppb (4) | 35.8 μg/m3 (34) | N/A | 34.0 | |
| May 9, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (20) | 0.3 ppb (4) | 35.3 μg/m3 (33) | N/A | 33.0 | |
| May 9, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (23) | 0.3 ppb (4) | 38.1 μg/m3 (36) | N/A | 36.0 | |
| May 9, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | 0.3 ppb (4) | 31.8 μg/m3 (30) | N/A | 30.0 | |
| May 9, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (27) | 0.4 ppb (5) | 25.9 μg/m3 (24) | N/A | 27.0 | |
| May 9, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (18) | 0.5 ppb (6) | 30.0 μg/m3 (28) | N/A | 28.0 | |
| May 9, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | 0.4 ppb (5) | 31.0 μg/m3 (29) | N/A | 29.0 | |
| May 9, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (36) | 0.4 ppb (5) | 23.7 μg/m3 (22) | N/A | 36.0 | |
| May 9, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (43) | 0.3 ppb (4) | 20.2 μg/m3 (19) | N/A | 43.0 | |
| May 9, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (50) | 0.3 ppb (4) | 19.0 μg/m3 (18) | N/A | 50.0 | |
| May 9, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (50) | 0.2 ppb (3) | 16.6 μg/m3 (16) | N/A | 50.0 | |
| May 8, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (51) | 0.3 ppb (4) | 18.6 μg/m3 (18) | N/A | 51.0 | |
| May 8, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (51) | 0.2 ppb (3) | 15.4 μg/m3 (15) | N/A | 51.0 | |
| May 8, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (50) | 0.2 ppb (3) | 19.9 μg/m3 (19) | N/A | 50.0 | |
| May 8, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (50) | 0.2 ppb (3) | 20.3 μg/m3 (19) | N/A | 50.0 | |
| May 8, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (49) | 0.3 ppb (4) | 19.4 μg/m3 (18) | N/A | 49.0 | |
| May 8, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (46) | 0.2 ppb (3) | 18.2 μg/m3 (17) | N/A | 46.0 | |
| May 8, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (46) | 0.2 ppb (3) | 15.7 μg/m3 (15) | N/A | 46.0 | |
| May 8, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (38) | 0.3 ppb (4) | 23.5 μg/m3 (22) | N/A | 38.0 | |
| May 8, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (31) | 0.3 ppb (4) | 33.7 μg/m3 (32) | N/A | 32.0 | |
| May 8, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (25) | 0.3 ppb (4) | 40.4 μg/m3 (38) | N/A | 38.0 | |
| May 8, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (18) | 0.3 ppb (4) | 39.3 μg/m3 (37) | N/A | 37.0 | |
| May 8, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (22) | 0.3 ppb (4) | 23.2 μg/m3 (22) | N/A | 22.0 | |
| May 8, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | 0.2 ppb (3) | 19.4 μg/m3 (18) | N/A | 28.0 | |
| May 8, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (29) | 0.2 ppb (3) | 21.1 μg/m3 (20) | N/A | 29.0 | |
| May 8, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (25) | 0.3 ppb (4) | 21.3 μg/m3 (20) | N/A | 25.0 | |
| May 8, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (27) | 0.3 ppb (4) | 22.2 μg/m3 (21) | N/A | 27.0 | |
| May 8, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (28) | 0.3 ppb (4) | 21.8 μg/m3 (21) | N/A | 28.0 | |
| May 8, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (38) | 0.3 ppb (4) | 25.8 μg/m3 (24) | N/A | 38.0 | |
| May 8, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (34) | 0.3 ppb (4) | 28.3 μg/m3 (27) | N/A | 34.0 | |
| May 8, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (37) | 0.3 ppb (4) | 20.8 μg/m3 (20) | N/A | 37.0 | |
| May 8, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (39) | 0.3 ppb (4) | 31.0 μg/m3 (29) | N/A | 39.0 | |
| May 8, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (42) | 0.3 ppb (4) | 23.7 μg/m3 (22) | N/A | 42.0 | |
| May 8, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (49) | 0.3 ppb (4) | 20.8 μg/m3 (20) | N/A | 49.0 | |
| May 8, 2021, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (50) | 0.2 ppb (3) | 19.9 μg/m3 (19) | N/A | 50.0 | |
| May 7, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (61) | 0.2 ppb (3) | 19.0 μg/m3 (18) | N/A | 61.0 | |
| May 7, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 59.0 ppb (65) | 0.2 ppb (3) | 22.4 μg/m3 (21) | N/A | 65.0 |