Phoenix (Maryvale) AZ, US: 33.483799, -112.142601
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| April 22, 2021, 10 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 39.0 ppb (37) | 0.0 ppb (0) | 12.8 μg/m3 (12) | 6.7 μg/m3 (28) | 37.0 | |
| April 22, 2021, 9 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 39.0 ppb (37) | 0.0 ppb (0) | 12.0 μg/m3 (12) | 7.0 μg/m3 (30) | 37.0 | |
| April 22, 2021, 8 a.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 42.0 ppb (39) | 0.0 ppb (0) | 9.4 μg/m3 (9) | 4.5 μg/m3 (19) | 39.0 | |
| April 22, 2021, 7 a.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 43.0 ppb (40) | 0.0 ppb (0) | 9.3 μg/m3 (9) | 3.5 μg/m3 (15) | 40.0 | |
| April 22, 2021, 6 a.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 44.0 ppb (41) | 0.0 ppb (0) | 9.2 μg/m3 (9) | 2.7 μg/m3 (12) | 41.0 | |
| April 22, 2021, 5 a.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 45.0 ppb (42) | 0.0 ppb (0) | 8.7 μg/m3 (9) | 0.5 μg/m3 (3) | 42.0 | |
| April 22, 2021, 4 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 45.0 ppb (42) | 0.0 ppb (0) | 5.8 μg/m3 (6) | -5.8 μg/m3 (0) | 42.0 | |
| April 22, 2021, 3 a.m. | N/A | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 45.0 ppb (42) | 0.0 ppb (0) | 3.9 μg/m3 (4) | N/A | 42.0 | |
| April 22, 2021, 2 a.m. | N/A | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 46.0 ppb (43) | 0.0 ppb (0) | 19.6 μg/m3 (19) | 2.9 μg/m3 (13) | 43.0 | |
| April 22, 2021, 1 a.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 50.0 ppb (47) | 0.0 ppb (0) | 88.0 μg/m3 (68) | 8.2 μg/m3 (35) | 68.0 | |
| April 22, 2021, midnight | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 51.0 ppb (48) | 0.0 ppb (0) | 211.6 μg/m3 (130) | 22.9 μg/m3 (74) | 130.0 | |
| April 21, 2021, 11 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 51.0 ppb (48) | 0.0 ppb (0) | 155.3 μg/m3 (102) | 16.3 μg/m3 (60) | 102.0 | |
| April 21, 2021, 10 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 52.0 ppb (49) | 0.0 ppb (0) | 84.8 μg/m3 (66) | 7.0 μg/m3 (30) | 66.0 | |
| April 21, 2021, 9 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 55.0 ppb (51) | 0.0 ppb (0) | 61.7 μg/m3 (55) | 1.5 μg/m3 (7) | 55.0 | |
| April 21, 2021, 8 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 55.0 ppb (51) | 0.0 ppb (0) | 18.6 μg/m3 (18) | 3.8 μg/m3 (16) | 51.0 | |
| April 21, 2021, 7 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 54.0 ppb (50) | 0.0 ppb (0) | 20.5 μg/m3 (19) | 7.5 μg/m3 (32) | 50.0 | |
| April 21, 2021, 6 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 55.0 ppb (51) | 0.0 ppb (0) | 36.1 μg/m3 (34) | 6.7 μg/m3 (28) | 51.0 | |
| April 21, 2021, 5 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 54.0 ppb (50) | 0.0 ppb (0) | 55.4 μg/m3 (52) | 7.3 μg/m3 (31) | 52.0 | |
| April 21, 2021, 4 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 51.0 ppb (48) | 0.0 ppb (0) | 56.8 μg/m3 (52) | 7.3 μg/m3 (31) | 52.0 | |
| April 21, 2021, 3 p.m. | N/A | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 46.0 ppb (43) | 0.0 ppb (0) | 44.9 μg/m3 (42) | 5.1 μg/m3 (22) | 43.0 | |
| April 21, 2021, 2 p.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | N/A | 31.0 ppb (29) | 0.1 ppb (2) | 31.5 μg/m3 (30) | 4.9 μg/m3 (21) | 30.0 | |
| April 21, 2021, 1 p.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | N/A | 26.0 ppb (25) | 0.1 ppb (2) | 19.6 μg/m3 (19) | 1.7 μg/m3 (8) | 25.0 | |
| April 21, 2021, noon | N/A | N/A | N/A | 18.0 ppb (17) | N/A | N/A | 24.0 ppb (23) | 0.1 ppb (2) | 20.0 μg/m3 (19) | 3.8 μg/m3 (16) | 23.0 | |
| April 21, 2021, 11 a.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | N/A | 29.0 ppb (27) | 0.1 ppb (2) | 20.1 μg/m3 (19) | 4.7 μg/m3 (20) | 27.0 | |
| April 21, 2021, 10 a.m. | N/A | N/A | N/A | 11.0 ppb (11) | N/A | N/A | 28.0 ppb (26) | 0.1 ppb (2) | 22.5 μg/m3 (21) | 7.8 μg/m3 (33) | 33.0 | |
| April 21, 2021, 9 a.m. | N/A | N/A | N/A | 16.0 ppb (16) | N/A | N/A | 24.0 ppb (23) | 0.1 ppb (2) | 22.0 μg/m3 (21) | 7.8 μg/m3 (33) | 33.0 | |
| April 21, 2021, 8 a.m. | N/A | N/A | N/A | 13.0 ppb (13) | N/A | N/A | 31.0 ppb (29) | 0.1 ppb (2) | 19.8 μg/m3 (19) | 7.2 μg/m3 (31) | 31.0 | |
| April 21, 2021, 7 a.m. | N/A | N/A | N/A | 11.0 ppb (11) | N/A | N/A | 37.0 ppb (35) | 0.1 ppb (2) | 16.0 μg/m3 (15) | 4.2 μg/m3 (18) | 35.0 | |
| April 21, 2021, 6 a.m. | N/A | N/A | N/A | 22.0 ppb (21) | N/A | N/A | 19.0 ppb (18) | 0.3 ppb (4) | 15.8 μg/m3 (15) | 3.1 μg/m3 (13) | 21.0 | |
| April 21, 2021, 5 a.m. | N/A | N/A | N/A | 13.0 ppb (13) | N/A | N/A | 38.0 ppb (36) | 0.1 ppb (2) | 14.3 μg/m3 (14) | 4.4 μg/m3 (19) | 36.0 | |
| April 21, 2021, 4 a.m. | N/A | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 47.0 ppb (44) | 0.1 ppb (2) | 16.0 μg/m3 (15) | 3.9 μg/m3 (17) | 44.0 | |
| April 21, 2021, 3 a.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | N/A | 45.0 ppb (42) | 0.1 ppb (2) | 23.6 μg/m3 (22) | 5.6 μg/m3 (24) | 42.0 | |
| April 21, 2021, 2 a.m. | N/A | N/A | N/A | 13.0 ppb (13) | N/A | N/A | 45.0 ppb (42) | 0.1 ppb (2) | 21.7 μg/m3 (21) | 5.1 μg/m3 (22) | 42.0 | |
| April 21, 2021, 1 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 54.0 ppb (50) | 0.0 ppb (0) | 20.5 μg/m3 (19) | 5.7 μg/m3 (24) | 50.0 | |
| April 21, 2021, midnight | N/A | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 57.0 ppb (58) | 0.0 ppb (0) | 18.5 μg/m3 (18) | 1.9 μg/m3 (8) | 58.0 | |
| April 20, 2021, 11 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 60.0 ppb (68) | 0.0 ppb (0) | 21.0 μg/m3 (20) | 2.8 μg/m3 (12) | 68.0 | |
| April 20, 2021, 10 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 60.0 ppb (68) | 0.0 ppb (0) | 38.3 μg/m3 (36) | 6.2 μg/m3 (26) | 68.0 | |
| April 20, 2021, 9 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 61.0 ppb (71) | 0.1 ppb (2) | 19.6 μg/m3 (19) | 3.9 μg/m3 (17) | 71.0 | |
| April 20, 2021, 8 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 60.0 ppb (68) | 0.0 ppb (0) | N/A | N/A | 68.0 | |
| April 20, 2021, 7 p.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 56.0 ppb (55) | 0.1 ppb (2) | N/A | N/A | 55.0 | |
| April 20, 2021, 6 p.m. | N/A | N/A | N/A | 10.0 ppb (10) | N/A | N/A | 52.0 ppb (49) | 0.0 ppb (0) | N/A | N/A | 49.0 | |
| April 20, 2021, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (35) | 0.1 ppb (2) | 35.8 μg/m3 (34) | 6.4 μg/m3 (27) | 35.0 | |
| April 20, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (27) | 0.2 ppb (3) | 41.8 μg/m3 (39) | 7.7 μg/m3 (33) | 39.0 | |
| April 20, 2021, 3 p.m. | N/A | N/A | N/A | 17.0 ppb (17) | N/A | N/A | 24.0 ppb (23) | 0.2 ppb (3) | 33.4 μg/m3 (31) | 6.0 μg/m3 (25) | 31.0 | |
| April 20, 2021, 2 p.m. | N/A | N/A | N/A | 25.0 ppb (24) | N/A | N/A | N/A | N/A | 32.4 μg/m3 (30) | 7.2 μg/m3 (31) | 31.0 | |
| April 20, 2021, 1 p.m. | N/A | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 23.0 ppb (22) | 0.2 ppb (3) | 28.9 μg/m3 (27) | 7.9 μg/m3 (33) | 33.0 | |
| April 20, 2021, noon | N/A | N/A | N/A | 20.0 ppb (19) | N/A | N/A | 22.0 ppb (21) | 0.2 ppb (3) | 25.3 μg/m3 (24) | 7.4 μg/m3 (31) | 31.0 | |
| April 20, 2021, 11 a.m. | N/A | N/A | N/A | 16.0 ppb (16) | N/A | N/A | 25.0 ppb (24) | 0.1 ppb (2) | 23.0 μg/m3 (22) | 8.2 μg/m3 (35) | 35.0 | |
| April 20, 2021, 10 a.m. | N/A | N/A | N/A | 15.0 ppb (15) | N/A | N/A | 24.0 ppb (23) | 0.1 ppb (2) | 21.8 μg/m3 (21) | 8.0 μg/m3 (34) | 34.0 | |
| April 20, 2021, 9 a.m. | N/A | N/A | N/A | 25.0 ppb (24) | N/A | N/A | 13.0 ppb (13) | 0.3 ppb (4) | 24.8 μg/m3 (23) | 8.3 μg/m3 (35) | 35.0 | |
| April 20, 2021, 8 a.m. | N/A | N/A | N/A | 33.0 ppb (32) | N/A | N/A | 2.0 ppb (2) | 0.4 ppb (5) | 28.8 μg/m3 (27) | 11.2 μg/m3 (47) | 47.0 | |
| April 20, 2021, 7 a.m. | N/A | N/A | N/A | 28.0 ppb (27) | N/A | N/A | 10.0 ppb (10) | 0.3 ppb (4) | 22.8 μg/m3 (22) | 9.9 μg/m3 (42) | 42.0 | |
| April 20, 2021, 6 a.m. | N/A | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 23.0 ppb (22) | 0.2 ppb (3) | 18.2 μg/m3 (17) | 4.7 μg/m3 (20) | 22.0 | |
| April 20, 2021, 5 a.m. | N/A | N/A | N/A | 17.0 ppb (17) | N/A | N/A | 27.0 ppb (25) | 0.2 ppb (3) | 18.1 μg/m3 (17) | 4.1 μg/m3 (18) | 25.0 | |
| April 20, 2021, 4 a.m. | N/A | N/A | N/A | 15.0 ppb (15) | N/A | N/A | 34.0 ppb (32) | 0.1 ppb (2) | 16.1 μg/m3 (15) | 2.4 μg/m3 (10) | 32.0 | |
| April 20, 2021, 3 a.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | N/A | 34.0 ppb (32) | 0.1 ppb (2) | 17.0 μg/m3 (16) | 4.3 μg/m3 (18) | 32.0 | |
| April 20, 2021, 2 a.m. | N/A | N/A | N/A | 11.0 ppb (11) | N/A | N/A | 42.0 ppb (39) | 0.1 ppb (2) | 17.0 μg/m3 (16) | 2.6 μg/m3 (11) | 39.0 | |
| April 20, 2021, 1 a.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 51.0 ppb (48) | 0.0 ppb (0) | 15.0 μg/m3 (14) | 3.6 μg/m3 (16) | 48.0 | |
| April 20, 2021, midnight | N/A | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 58.0 ppb (61) | 0.0 ppb (0) | 14.4 μg/m3 (14) | 4.1 μg/m3 (18) | 61.0 | |
| April 19, 2021, 11 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 59.0 ppb (65) | 0.0 ppb (0) | 17.8 μg/m3 (17) | 3.8 μg/m3 (16) | 65.0 | |
| April 19, 2021, 10 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 61.0 ppb (71) | 0.0 ppb (0) | 22.9 μg/m3 (22) | 6.4 μg/m3 (27) | 71.0 | |
| April 19, 2021, 9 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 59.0 ppb (65) | 0.0 ppb (0) | 5.1 μg/m3 (5) | 0.4 μg/m3 (2) | 65.0 | |
| April 19, 2021, 8 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 58.0 ppb (61) | 0.0 ppb (0) | 7.8 μg/m3 (8) | 3.0 μg/m3 (13) | 61.0 | |
| April 19, 2021, 7 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 54.0 ppb (50) | 0.0 ppb (0) | 10.0 μg/m3 (10) | 4.6 μg/m3 (20) | 50.0 | |
| April 19, 2021, 6 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 49.0 ppb (46) | 0.0 ppb (0) | 11.1 μg/m3 (11) | 3.7 μg/m3 (16) | 46.0 | |
| April 19, 2021, 5 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 48.0 ppb (45) | 0.0 ppb (0) | 13.1 μg/m3 (13) | 4.7 μg/m3 (20) | 45.0 | |
| April 19, 2021, 4 p.m. | N/A | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 43.0 ppb (40) | 0.1 ppb (2) | 17.0 μg/m3 (16) | 5.3 μg/m3 (23) | 40.0 | |
| April 19, 2021, 3 p.m. | N/A | N/A | N/A | 13.0 ppb (13) | N/A | N/A | 35.0 ppb (33) | 0.1 ppb (2) | 28.2 μg/m3 (27) | 7.5 μg/m3 (32) | 33.0 | |
| April 19, 2021, 2 p.m. | N/A | N/A | N/A | 25.0 ppb (24) | N/A | N/A | 20.0 ppb (19) | 0.3 ppb (4) | 40.4 μg/m3 (38) | 9.4 μg/m3 (40) | 40.0 | |
| April 19, 2021, 1 p.m. | N/A | N/A | N/A | 32.0 ppb (31) | N/A | N/A | 7.0 ppb (7) | 0.6 ppb (7) | 41.6 μg/m3 (39) | 6.7 μg/m3 (28) | 39.0 | |
| April 19, 2021, noon | N/A | N/A | N/A | 28.0 ppb (27) | N/A | N/A | 8.0 ppb (8) | 0.4 ppb (5) | 20.9 μg/m3 (20) | 5.2 μg/m3 (22) | 27.0 | |
| April 19, 2021, 11 a.m. | N/A | N/A | N/A | 17.0 ppb (17) | N/A | N/A | 20.0 ppb (19) | 0.2 ppb (3) | 12.3 μg/m3 (12) | 5.3 μg/m3 (23) | 23.0 | |
| April 19, 2021, 10 a.m. | N/A | N/A | N/A | 8.0 ppb (8) | N/A | N/A | 30.0 ppb (28) | 0.1 ppb (2) | 7.6 μg/m3 (8) | 3.8 μg/m3 (16) | 28.0 | |
| April 19, 2021, 9 a.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 36.0 ppb (34) | 0.0 ppb (0) | 9.6 μg/m3 (9) | 3.4 μg/m3 (15) | 34.0 | |
| April 19, 2021, 8 a.m. | N/A | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 32.0 ppb (30) | 0.1 ppb (2) | 10.5 μg/m3 (10) | 3.9 μg/m3 (17) | 30.0 | |
| April 19, 2021, 7 a.m. | N/A | N/A | N/A | 8.0 ppb (8) | N/A | N/A | 33.0 ppb (31) | 0.1 ppb (2) | 8.5 μg/m3 (8) | 4.0 μg/m3 (17) | 31.0 | |
| April 19, 2021, 6 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 35.0 ppb (33) | 0.1 ppb (2) | 6.9 μg/m3 (7) | 2.9 μg/m3 (13) | 33.0 | |
| April 19, 2021, 5 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 37.0 ppb (35) | 0.1 ppb (2) | 6.5 μg/m3 (7) | 2.1 μg/m3 (9) | 35.0 | |
| April 19, 2021, 4 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 40.0 ppb (38) | 0.1 ppb (2) | 8.7 μg/m3 (9) | 3.0 μg/m3 (13) | 38.0 | |
| April 19, 2021, 3 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 42.0 ppb (39) | 0.1 ppb (2) | 8.6 μg/m3 (8) | 3.4 μg/m3 (15) | 39.0 | |
| April 19, 2021, 2 a.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 46.0 ppb (43) | 0.0 ppb (0) | 8.3 μg/m3 (8) | 2.0 μg/m3 (9) | 43.0 | |
| April 19, 2021, 1 a.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 49.0 ppb (46) | 0.1 ppb (2) | 16.7 μg/m3 (16) | 8.1 μg/m3 (34) | 46.0 | |
| April 19, 2021, midnight | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 50.0 ppb (47) | 0.1 ppb (2) | 13.4 μg/m3 (13) | 6.7 μg/m3 (28) | 47.0 | |
| April 18, 2021, 11 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 51.0 ppb (48) | 0.0 ppb (0) | 12.5 μg/m3 (12) | 3.6 μg/m3 (16) | 48.0 | |
| April 18, 2021, 10 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 52.0 ppb (49) | 0.0 ppb (0) | 94.5 μg/m3 (71) | 4.9 μg/m3 (21) | 71.0 | |
| April 18, 2021, 9 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 51.0 ppb (48) | 0.0 ppb (0) | 75.7 μg/m3 (62) | 3.4 μg/m3 (15) | 62.0 | |
| April 18, 2021, 8 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 51.0 ppb (48) | 0.0 ppb (0) | 19.5 μg/m3 (19) | 1.9 μg/m3 (8) | 48.0 | |
| April 18, 2021, 7 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 49.0 ppb (46) | 0.0 ppb (0) | 12.5 μg/m3 (12) | 0.3 μg/m3 (2) | 46.0 | |
| April 18, 2021, 6 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 47.0 ppb (44) | 0.0 ppb (0) | 12.9 μg/m3 (12) | 2.4 μg/m3 (10) | 44.0 | |
| April 18, 2021, 5 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 46.0 ppb (43) | 0.0 ppb (0) | 19.6 μg/m3 (19) | 6.8 μg/m3 (29) | 43.0 | |
| April 18, 2021, 4 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 46.0 ppb (43) | 0.0 ppb (0) | 11.4 μg/m3 (11) | 2.0 μg/m3 (9) | 43.0 | |
| April 18, 2021, 3 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 43.0 ppb (40) | 0.0 ppb (0) | 10.5 μg/m3 (10) | 2.2 μg/m3 (10) | 40.0 | |
| April 18, 2021, 2 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 37.0 ppb (35) | 0.0 ppb (0) | 16.5 μg/m3 (16) | 4.9 μg/m3 (21) | 35.0 | |
| April 18, 2021, 1 p.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 32.0 ppb (30) | 0.0 ppb (0) | 21.1 μg/m3 (20) | 3.7 μg/m3 (16) | 30.0 | |
| April 18, 2021, noon | N/A | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 30.0 ppb (28) | 0.0 ppb (0) | 9.9 μg/m3 (10) | 3.3 μg/m3 (14) | 28.0 | |
| April 18, 2021, 11 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 30.0 ppb (28) | 0.2 ppb (3) | 10.0 μg/m3 (10) | 3.4 μg/m3 (15) | 28.0 | |
| April 18, 2021, 10 a.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 36.0 ppb (34) | 0.0 ppb (0) | 17.7 μg/m3 (17) | 3.5 μg/m3 (15) | 34.0 | |
| April 18, 2021, 9 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 33.0 ppb (31) | 0.1 ppb (2) | 15.2 μg/m3 (15) | 4.0 μg/m3 (17) | 31.0 | |
| April 18, 2021, 8 a.m. | N/A | N/A | N/A | 8.0 ppb (8) | N/A | N/A | 31.0 ppb (29) | 0.1 ppb (2) | 14.7 μg/m3 (14) | 4.7 μg/m3 (20) | 29.0 | |
| April 18, 2021, 7 a.m. | N/A | N/A | N/A | 8.0 ppb (8) | N/A | N/A | 35.0 ppb (33) | 0.1 ppb (2) | 14.2 μg/m3 (14) | 5.3 μg/m3 (23) | 33.0 | |
| April 18, 2021, 6 a.m. | N/A | N/A | N/A | 8.0 ppb (8) | N/A | N/A | 34.0 ppb (32) | 0.1 ppb (2) | 16.8 μg/m3 (16) | 4.6 μg/m3 (20) | 32.0 | |
| April 18, 2021, 5 a.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 39.0 ppb (37) | 0.1 ppb (2) | 24.0 μg/m3 (23) | 4.8 μg/m3 (20) | 37.0 | |
| April 18, 2021, 4 a.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 43.0 ppb (40) | 0.0 ppb (0) | 20.0 μg/m3 (19) | 3.8 μg/m3 (16) | 40.0 | |
| April 18, 2021, 3 a.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 47.0 ppb (44) | 0.1 ppb (2) | 22.0 μg/m3 (21) | 2.4 μg/m3 (10) | 44.0 | |
| April 18, 2021, 2 a.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 48.0 ppb (45) | 0.1 ppb (2) | 25.4 μg/m3 (24) | 4.3 μg/m3 (18) | 45.0 | |
| April 18, 2021, 1 a.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 50.0 ppb (47) | 0.0 ppb (0) | 18.9 μg/m3 (18) | 3.1 μg/m3 (13) | 47.0 | |
| April 18, 2021, midnight | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 51.0 ppb (48) | 0.0 ppb (0) | 16.6 μg/m3 (16) | 3.7 μg/m3 (16) | 48.0 | |
| April 17, 2021, 11 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 53.0 ppb (50) | 0.0 ppb (0) | 16.6 μg/m3 (16) | 2.7 μg/m3 (12) | 50.0 | |
| April 17, 2021, 10 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 55.0 ppb (51) | 0.0 ppb (0) | 16.6 μg/m3 (16) | 4.4 μg/m3 (19) | 51.0 | |
| April 17, 2021, 9 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 57.0 ppb (58) | 0.0 ppb (0) | 17.6 μg/m3 (17) | 2.2 μg/m3 (10) | 58.0 | |
| April 17, 2021, 8 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 57.0 ppb (58) | 0.0 ppb (0) | 11.5 μg/m3 (11) | 1.5 μg/m3 (7) | 58.0 | |
| April 17, 2021, 7 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 54.0 ppb (50) | 0.0 ppb (0) | 17.0 μg/m3 (16) | 6.0 μg/m3 (25) | 50.0 | |
| April 17, 2021, 6 p.m. | N/A | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 48.0 ppb (45) | 0.0 ppb (0) | 17.7 μg/m3 (17) | 5.5 μg/m3 (23) | 45.0 | |
| April 17, 2021, 5 p.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | N/A | 44.0 ppb (41) | 0.1 ppb (2) | 30.0 μg/m3 (28) | 9.1 μg/m3 (38) | 41.0 | |
| April 17, 2021, 4 p.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | N/A | 37.0 ppb (35) | 0.2 ppb (3) | 38.8 μg/m3 (36) | 11.9 μg/m3 (50) | 50.0 | |
| April 17, 2021, 3 p.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | N/A | 27.0 ppb (25) | 0.3 ppb (4) | 41.6 μg/m3 (39) | 13.0 μg/m3 (53) | 53.0 | |
| April 17, 2021, 2 p.m. | N/A | N/A | N/A | 28.0 ppb (27) | N/A | N/A | 14.0 ppb (13) | 0.6 ppb (7) | 66.9 μg/m3 (57) | 16.6 μg/m3 (61) | 61.0 | |
| April 17, 2021, 1 p.m. | N/A | N/A | N/A | 31.0 ppb (30) | N/A | N/A | 4.0 ppb (4) | 0.9 ppb (11) | 78.7 μg/m3 (63) | 15.1 μg/m3 (58) | 63.0 | |
| April 17, 2021, noon | N/A | N/A | N/A | 30.0 ppb (29) | N/A | N/A | 3.0 ppb (3) | 0.5 ppb (6) | 31.8 μg/m3 (30) | 11.0 μg/m3 (46) | 46.0 | |
| April 17, 2021, 11 a.m. | N/A | N/A | N/A | 30.0 ppb (29) | N/A | N/A | 4.0 ppb (4) | 0.5 ppb (6) | 33.4 μg/m3 (31) | 13.2 μg/m3 (54) | 54.0 | |
| April 17, 2021, 10 a.m. | N/A | N/A | N/A | 32.0 ppb (31) | N/A | N/A | 2.0 ppb (2) | 0.7 ppb (8) | 36.2 μg/m3 (34) | 12.6 μg/m3 (53) | 53.0 | |
| April 17, 2021, 9 a.m. | N/A | N/A | N/A | 32.0 ppb (31) | N/A | N/A | 2.0 ppb (2) | 0.6 ppb (7) | 33.7 μg/m3 (32) | 11.0 μg/m3 (46) | 46.0 | |
| April 17, 2021, 8 a.m. | N/A | N/A | N/A | 30.0 ppb (29) | N/A | N/A | 4.0 ppb (4) | 0.5 ppb (6) | 39.1 μg/m3 (37) | 9.3 μg/m3 (39) | 39.0 | |
| April 17, 2021, 7 a.m. | N/A | N/A | N/A | 25.0 ppb (24) | N/A | N/A | 12.0 ppb (12) | 0.4 ppb (5) | 47.6 μg/m3 (45) | 10.0 μg/m3 (42) | 45.0 | |
| April 17, 2021, 6 a.m. | N/A | N/A | N/A | 26.0 ppb (25) | N/A | N/A | 14.0 ppb (13) | 0.4 ppb (5) | 57.8 μg/m3 (53) | 9.9 μg/m3 (42) | 53.0 | |
| April 17, 2021, 5 a.m. | N/A | N/A | N/A | 34.0 ppb (33) | N/A | N/A | 14.0 ppb (13) | 0.5 ppb (6) | 46.7 μg/m3 (44) | 12.0 μg/m3 (50) | 50.0 | |
| April 17, 2021, 4 a.m. | N/A | N/A | N/A | 44.0 ppb (42) | N/A | N/A | 5.0 ppb (5) | 0.8 ppb (10) | 44.7 μg/m3 (42) | 10.1 μg/m3 (43) | 43.0 | |
| April 17, 2021, 3 a.m. | N/A | N/A | N/A | 39.0 ppb (37) | N/A | N/A | 6.0 ppb (6) | 0.6 ppb (7) | 28.9 μg/m3 (27) | 7.5 μg/m3 (32) | 37.0 | |
| April 17, 2021, 2 a.m. | N/A | N/A | N/A | 17.0 ppb (17) | N/A | N/A | 36.0 ppb (34) | 0.2 ppb (3) | 20.5 μg/m3 (19) | 4.9 μg/m3 (21) | 34.0 | |
| April 17, 2021, 1 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 56.0 ppb (55) | 0.0 ppb (0) | 15.1 μg/m3 (14) | 4.5 μg/m3 (19) | 55.0 | |
| April 17, 2021, midnight | N/A | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 60.0 ppb (68) | 0.0 ppb (0) | 15.8 μg/m3 (15) | 7.1 μg/m3 (30) | 68.0 | |
| April 16, 2021, 11 p.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 60.0 ppb (68) | 0.0 ppb (0) | 17.7 μg/m3 (17) | 7.6 μg/m3 (32) | 68.0 | |
| April 16, 2021, 10 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 61.0 ppb (71) | 0.0 ppb (0) | 19.9 μg/m3 (19) | 7.6 μg/m3 (32) | 71.0 | |
| April 16, 2021, 9 p.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 60.0 ppb (68) | 0.0 ppb (0) | 16.3 μg/m3 (16) | 5.4 μg/m3 (23) | 68.0 | |
| April 16, 2021, 8 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 58.0 ppb (61) | 0.0 ppb (0) | 12.7 μg/m3 (12) | 3.2 μg/m3 (14) | 61.0 | |
| April 16, 2021, 7 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 56.0 ppb (55) | 0.0 ppb (0) | 16.3 μg/m3 (16) | 4.2 μg/m3 (18) | 55.0 | |
| April 16, 2021, 6 p.m. | N/A | N/A | N/A | 8.0 ppb (8) | N/A | N/A | 50.0 ppb (47) | 0.0 ppb (0) | 20.8 μg/m3 (20) | 5.4 μg/m3 (23) | 47.0 | |
| April 16, 2021, 5 p.m. | N/A | N/A | N/A | 13.0 ppb (13) | N/A | N/A | 43.0 ppb (40) | 0.1 ppb (2) | 31.3 μg/m3 (29) | 9.2 μg/m3 (39) | 40.0 | |
| April 16, 2021, 4 p.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | N/A | 34.0 ppb (32) | 0.1 ppb (2) | 53.4 μg/m3 (50) | 12.4 μg/m3 (52) | 52.0 | |
| April 16, 2021, 3 p.m. | N/A | N/A | N/A | 33.0 ppb (32) | N/A | N/A | 16.0 ppb (15) | 0.3 ppb (4) | 58.8 μg/m3 (53) | 15.4 μg/m3 (58) | 58.0 | |
| April 16, 2021, 2 p.m. | N/A | N/A | N/A | 36.0 ppb (34) | N/A | N/A | 6.0 ppb (6) | 0.6 ppb (7) | 78.1 μg/m3 (63) | 15.8 μg/m3 (59) | 63.0 | |
| April 16, 2021, 1 p.m. | N/A | N/A | N/A | 28.0 ppb (27) | N/A | N/A | 2.0 ppb (2) | 1.0 ppb (12) | 52.5 μg/m3 (49) | 11.3 μg/m3 (48) | 49.0 | |
| April 16, 2021, noon | N/A | N/A | N/A | 28.0 ppb (27) | N/A | N/A | 1.0 ppb (1) | 0.7 ppb (8) | 34.2 μg/m3 (32) | 8.4 μg/m3 (36) | 36.0 | |
| April 16, 2021, 11 a.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | N/A | 11.0 ppb (11) | 0.3 ppb (4) | 32.4 μg/m3 (30) | 6.8 μg/m3 (29) | 30.0 | |
| April 16, 2021, 10 a.m. | N/A | N/A | N/A | 15.0 ppb (15) | N/A | N/A | 20.0 ppb (19) | 0.1 ppb (2) | 18.5 μg/m3 (18) | 5.6 μg/m3 (24) | 24.0 | |
| April 16, 2021, 9 a.m. | N/A | N/A | N/A | 10.0 ppb (10) | N/A | N/A | 28.0 ppb (26) | 0.1 ppb (2) | 17.8 μg/m3 (17) | 5.5 μg/m3 (23) | 26.0 | |
| April 16, 2021, 8 a.m. | N/A | N/A | N/A | 10.0 ppb (10) | N/A | N/A | 29.0 ppb (27) | 0.1 ppb (2) | 15.2 μg/m3 (15) | 4.5 μg/m3 (19) | 27.0 | |
| April 16, 2021, 7 a.m. | N/A | N/A | N/A | 10.0 ppb (10) | N/A | N/A | 38.0 ppb (36) | 0.1 ppb (2) | 23.0 μg/m3 (22) | 8.1 μg/m3 (34) | 36.0 | |
| April 16, 2021, 6 a.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | N/A | 25.0 ppb (24) | 0.2 ppb (3) | 23.1 μg/m3 (22) | 6.2 μg/m3 (26) | 26.0 | |
| April 16, 2021, 5 a.m. | N/A | N/A | N/A | 14.0 ppb (14) | N/A | N/A | 33.0 ppb (31) | 0.2 ppb (3) | 20.7 μg/m3 (20) | 6.2 μg/m3 (26) | 31.0 | |
| April 16, 2021, 4 a.m. | N/A | N/A | N/A | 8.0 ppb (8) | N/A | N/A | 44.0 ppb (41) | 0.1 ppb (2) | 18.7 μg/m3 (18) | 4.0 μg/m3 (17) | 41.0 | |
| April 16, 2021, 3 a.m. | N/A | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 45.0 ppb (42) | 0.1 ppb (2) | 23.6 μg/m3 (22) | 5.0 μg/m3 (21) | 42.0 | |
| April 16, 2021, 2 a.m. | N/A | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 46.0 ppb (43) | 0.1 ppb (2) | 32.1 μg/m3 (30) | 5.0 μg/m3 (21) | 43.0 | |
| April 16, 2021, 1 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 51.0 ppb (48) | 0.1 ppb (2) | 31.1 μg/m3 (29) | 5.6 μg/m3 (24) | 48.0 | |
| April 16, 2021, midnight | N/A | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 55.0 ppb (51) | 0.0 ppb (0) | 27.8 μg/m3 (26) | 6.8 μg/m3 (29) | 51.0 | |
| April 15, 2021, 11 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 57.0 ppb (58) | 0.0 ppb (0) | 30.1 μg/m3 (28) | 6.3 μg/m3 (27) | 58.0 | |
| April 15, 2021, 10 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 59.0 ppb (65) | 0.0 ppb (0) | 29.2 μg/m3 (28) | 7.5 μg/m3 (32) | 65.0 | |
| April 15, 2021, 9 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 60.0 ppb (68) | 0.0 ppb (0) | 30.2 μg/m3 (28) | 7.3 μg/m3 (31) | 68.0 | |
| April 15, 2021, 8 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 61.0 ppb (71) | 0.0 ppb (0) | 36.4 μg/m3 (34) | 8.6 μg/m3 (36) | 71.0 | |
| April 15, 2021, 7 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 59.0 ppb (65) | 0.0 ppb (0) | 38.2 μg/m3 (36) | 7.0 μg/m3 (30) | 65.0 | |
| April 15, 2021, 6 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 56.0 ppb (55) | 0.0 ppb (0) | 34.2 μg/m3 (32) | 7.4 μg/m3 (31) | 55.0 | |
| April 15, 2021, 5 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 53.0 ppb (50) | 0.0 ppb (0) | 24.7 μg/m3 (23) | 4.5 μg/m3 (19) | 50.0 | |
| April 15, 2021, 4 p.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 48.0 ppb (45) | 0.0 ppb (0) | 26.3 μg/m3 (25) | 7.1 μg/m3 (30) | 45.0 | |
| April 15, 2021, 3 p.m. | N/A | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 43.0 ppb (40) | 0.1 ppb (2) | 28.3 μg/m3 (27) | 7.5 μg/m3 (32) | 40.0 | |
| April 15, 2021, 2 p.m. | N/A | N/A | N/A | 14.0 ppb (14) | N/A | N/A | 36.0 ppb (34) | 0.1 ppb (2) | 28.4 μg/m3 (27) | 7.3 μg/m3 (31) | 34.0 | |
| April 15, 2021, 1 p.m. | N/A | N/A | N/A | 17.0 ppb (17) | N/A | N/A | 30.0 ppb (28) | 0.1 ppb (2) | 22.5 μg/m3 (21) | 6.3 μg/m3 (27) | 28.0 | |
| April 15, 2021, noon | N/A | N/A | N/A | 14.0 ppb (14) | N/A | N/A | 32.0 ppb (30) | 0.1 ppb (2) | 16.8 μg/m3 (16) | 4.7 μg/m3 (20) | 30.0 | |
| April 15, 2021, 11 a.m. | N/A | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 33.0 ppb (31) | 0.1 ppb (2) | 13.6 μg/m3 (13) | 4.9 μg/m3 (21) | 31.0 |