Seattle (Little Saigon) WA, US: 47.597222, -122.319722
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| June 14, 2021, 6 p.m. | 67.8 ppb (66) | 42.9 ppb (41) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 66.0 | |
| June 14, 2021, 5 p.m. | 75.8 ppb (75) | 52.0 ppb (50) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 75.0 | |
| June 14, 2021, 4 p.m. | 87.3 ppb (87) | 58.4 ppb (56) | N/A | 29.0 ppb (28) | N/A | N/A | N/A | 0.43 ppb (5) | N/A | N/A | 87.0 | |
| June 14, 2021, 3 p.m. | 82.3 ppb (82) | 52.7 ppb (50) | N/A | 30.0 ppb (29) | N/A | N/A | N/A | 0.37 ppb (5) | N/A | 7.0 μg/m3 (30) | 82.0 | |
| June 14, 2021, 2 p.m. | 33.1 ppb (32) | 15.3 ppb (15) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 0.24 ppb (3) | N/A | 5.0 μg/m3 (21) | 32.0 | |
| June 14, 2021, 1 p.m. | 50.3 ppb (48) | 27.1 ppb (26) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 0.41 ppb (5) | N/A | 5.0 μg/m3 (21) | 48.0 | |
| June 14, 2021, noon | 53.6 ppb (51) | 35.3 ppb (34) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 0.49 ppb (6) | N/A | 4.0 μg/m3 (17) | 51.0 | |
| June 14, 2021, 11 a.m. | 24.4 ppb (24) | 12.1 ppb (12) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 0.31 ppb (4) | N/A | 7.0 μg/m3 (30) | 30.0 | |
| June 14, 2021, 10 a.m. | 23.4 ppb (23) | 9.2 ppb (9) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | 0.26 ppb (4) | N/A | 4.0 μg/m3 (17) | 23.0 | |
| June 14, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 14, 2021, 8 a.m. | 28.6 ppb (27) | 10.1 ppb (10) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 0.32 ppb (4) | N/A | 3.0 μg/m3 (13) | 27.0 | |
| June 14, 2021, 7 a.m. | 28.3 ppb (27) | 10.2 ppb (10) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 0.26 ppb (4) | N/A | 5.0 μg/m3 (21) | 27.0 | |
| June 14, 2021, 6 a.m. | 44.2 ppb (42) | 21.7 ppb (21) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 0.4 ppb (5) | N/A | 6.0 μg/m3 (25) | 42.0 | |
| June 14, 2021, 5 a.m. | 57.3 ppb (55) | 31.7 ppb (30) | N/A | 26.0 ppb (25) | N/A | N/A | N/A | 0.47 ppb (6) | N/A | 5.0 μg/m3 (21) | 55.0 | |
| June 14, 2021, 4 a.m. | 21.2 ppb (20) | 7.9 ppb (8) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | 0.38 ppb (5) | N/A | 7.0 μg/m3 (30) | 30.0 | |
| June 14, 2021, 3 a.m. | 12.3 ppb (12) | 2.1 ppb (2) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | 0.23 ppb (3) | N/A | 11.0 μg/m3 (46) | 46.0 | |
| June 14, 2021, 2 a.m. | 11.8 ppb (12) | 2.6 ppb (3) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.26 ppb (4) | N/A | 12.0 μg/m3 (50) | 50.0 | |
| June 14, 2021, 1 a.m. | 15.6 ppb (15) | 3.0 ppb (3) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | 0.27 ppb (4) | N/A | 16.0 μg/m3 (60) | 60.0 | |
| June 14, 2021, midnight | 24.6 ppb (24) | 8.4 ppb (8) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.33 ppb (4) | N/A | 5.0 μg/m3 (21) | 24.0 | |
| June 13, 2021, 11 p.m. | 52.2 ppb (50) | 22.9 ppb (22) | N/A | 29.0 ppb (28) | N/A | N/A | N/A | 0.38 ppb (5) | N/A | 10.0 μg/m3 (42) | 50.0 | |
| June 13, 2021, 10 p.m. | 92.8 ppb (93) | 54.8 ppb (52) | N/A | 38.0 ppb (36) | N/A | N/A | N/A | 0.41 ppb (5) | N/A | 11.0 μg/m3 (46) | 93.0 | |
| June 13, 2021, 9 p.m. | 53.1 ppb (51) | 27.7 ppb (27) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 0.32 ppb (4) | N/A | 9.0 μg/m3 (38) | 51.0 | |
| June 13, 2021, 8 p.m. | 28.0 ppb (27) | 13.2 ppb (13) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.24 ppb (3) | N/A | 9.0 μg/m3 (38) | 38.0 | |
| June 13, 2021, 7 p.m. | 44.1 ppb (42) | 24.8 ppb (24) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 0.27 ppb (4) | N/A | 8.0 μg/m3 (34) | 42.0 | |
| June 13, 2021, 6 p.m. | 46.9 ppb (45) | 25.2 ppb (24) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | 0.34 ppb (4) | N/A | 5.0 μg/m3 (21) | 45.0 | |
| June 13, 2021, 5 p.m. | 22.5 ppb (22) | 12.0 ppb (12) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.29 ppb (4) | N/A | 7.0 μg/m3 (30) | 30.0 | |
| June 13, 2021, 4 p.m. | 17.5 ppb (17) | 6.7 ppb (7) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.18 ppb (3) | N/A | 5.0 μg/m3 (21) | 21.0 | |
| June 13, 2021, 3 p.m. | 33.8 ppb (32) | 16.3 ppb (16) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 0.32 ppb (4) | N/A | 2.0 μg/m3 (9) | 32.0 | |
| June 13, 2021, 2 p.m. | 22.9 ppb (22) | 8.0 ppb (8) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.25 ppb (3) | N/A | 1.0 μg/m3 (5) | 22.0 | |
| June 13, 2021, 1 p.m. | 15.7 ppb (15) | 6.1 ppb (6) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | 0.21 ppb (3) | N/A | 3.0 μg/m3 (13) | 15.0 | |
| June 13, 2021, noon | 6.8 ppb (7) | 1.5 ppb (2) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | 0.16 ppb (3) | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 13, 2021, 11 a.m. | 7.6 ppb (8) | 2.0 ppb (2) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | 0.13 ppb (2) | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 13, 2021, 10 a.m. | 5.2 ppb (5) | 0.2 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | 0.16 ppb (3) | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 13, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 13, 2021, 8 a.m. | 11.6 ppb (11) | 0.6 ppb (1) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.17 ppb (3) | N/A | 6.0 μg/m3 (25) | 25.0 | |
| June 13, 2021, 7 a.m. | 35.5 ppb (34) | 10.8 ppb (11) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 0.37 ppb (5) | N/A | 6.0 μg/m3 (25) | 34.0 | |
| June 13, 2021, 6 a.m. | 34.8 ppb (33) | 9.2 ppb (9) | N/A | 26.0 ppb (25) | N/A | N/A | N/A | 0.45 ppb (6) | N/A | 8.0 μg/m3 (34) | 34.0 | |
| June 13, 2021, 5 a.m. | 45.9 ppb (44) | 13.4 ppb (13) | N/A | 33.0 ppb (32) | N/A | N/A | N/A | 0.47 ppb (6) | N/A | 8.0 μg/m3 (34) | 44.0 | |
| June 13, 2021, 4 a.m. | 42.0 ppb (40) | 13.2 ppb (13) | N/A | 29.0 ppb (28) | N/A | N/A | N/A | 0.36 ppb (5) | N/A | 11.0 μg/m3 (46) | 46.0 | |
| June 13, 2021, 3 a.m. | 48.3 ppb (46) | 18.9 ppb (18) | N/A | 29.0 ppb (28) | N/A | N/A | N/A | 0.56 ppb (7) | N/A | 7.0 μg/m3 (30) | 46.0 | |
| June 13, 2021, 2 a.m. | 40.0 ppb (38) | 16.5 ppb (16) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | 0.55 ppb (7) | N/A | 4.0 μg/m3 (17) | 38.0 | |
| June 13, 2021, 1 a.m. | 35.2 ppb (34) | 12.7 ppb (12) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 0.35 ppb (4) | N/A | 3.0 μg/m3 (13) | 34.0 | |
| June 13, 2021, midnight | 36.3 ppb (35) | 15.4 ppb (15) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | 0.34 ppb (4) | N/A | -1.0 μg/m3 (0) | 35.0 | |
| June 12, 2021, 11 p.m. | 19.0 ppb (18) | 9.4 ppb (9) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | 0.28 ppb (4) | N/A | 1.0 μg/m3 (5) | 18.0 | |
| June 12, 2021, 10 p.m. | 21.1 ppb (20) | 10.9 ppb (11) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | 0.31 ppb (4) | N/A | 3.0 μg/m3 (13) | 20.0 | |
| June 12, 2021, 9 p.m. | 20.8 ppb (20) | 10.0 ppb (10) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.24 ppb (3) | N/A | 5.0 μg/m3 (21) | 21.0 | |
| June 12, 2021, 8 p.m. | 24.2 ppb (23) | 13.0 ppb (13) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.24 ppb (3) | N/A | 4.0 μg/m3 (17) | 23.0 | |
| June 12, 2021, 7 p.m. | 34.5 ppb (33) | 19.3 ppb (19) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.33 ppb (4) | N/A | 5.0 μg/m3 (21) | 33.0 | |
| June 12, 2021, 6 p.m. | 43.7 ppb (42) | 23.8 ppb (23) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.29 ppb (4) | N/A | 6.0 μg/m3 (25) | 42.0 | |
| June 12, 2021, 5 p.m. | 34.4 ppb (33) | 20.7 ppb (20) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | 0.25 ppb (3) | N/A | 5.0 μg/m3 (21) | 33.0 | |
| June 12, 2021, 4 p.m. | 37.0 ppb (35) | 23.1 ppb (22) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | 0.34 ppb (4) | N/A | 4.0 μg/m3 (17) | 35.0 | |
| June 12, 2021, 3 p.m. | 15.1 ppb (15) | 8.4 ppb (8) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | 0.18 ppb (3) | N/A | 6.0 μg/m3 (25) | 25.0 | |
| June 12, 2021, 2 p.m. | 13.6 ppb (13) | 6.8 ppb (7) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | 0.2 ppb (3) | N/A | 5.0 μg/m3 (21) | 21.0 | |
| June 12, 2021, 1 p.m. | 26.8 ppb (26) | 11.8 ppb (12) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.28 ppb (4) | N/A | 3.0 μg/m3 (13) | 26.0 | |
| June 12, 2021, noon | 47.1 ppb (45) | 26.7 ppb (26) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.5 ppb (6) | N/A | 5.0 μg/m3 (21) | 45.0 | |
| June 12, 2021, 11 a.m. | 35.3 ppb (34) | 16.7 ppb (16) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 0.39 ppb (5) | N/A | 29.0 μg/m3 (87) | 87.0 | |
| June 12, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 12, 2021, 9 a.m. | 11.3 ppb (11) | 1.5 ppb (2) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | 0.13 ppb (2) | N/A | 5.0 μg/m3 (21) | 21.0 | |
| June 12, 2021, 8 a.m. | 21.5 ppb (21) | 3.2 ppb (4) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 0.19 ppb (3) | N/A | 6.0 μg/m3 (25) | 25.0 | |
| June 12, 2021, 7 a.m. | 45.2 ppb (43) | 19.6 ppb (19) | N/A | 26.0 ppb (25) | N/A | N/A | N/A | 0.36 ppb (5) | N/A | 8.0 μg/m3 (34) | 43.0 | |
| June 12, 2021, 6 a.m. | 46.1 ppb (44) | 21.2 ppb (20) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 0.32 ppb (4) | N/A | 6.0 μg/m3 (25) | 44.0 | |
| June 12, 2021, 5 a.m. | 87.4 ppb (87) | 52.6 ppb (50) | N/A | 35.0 ppb (34) | N/A | N/A | N/A | 0.58 ppb (7) | N/A | 18.0 μg/m3 (64) | 87.0 | |
| June 12, 2021, 4 a.m. | 23.7 ppb (23) | 11.4 ppb (11) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 0.38 ppb (5) | N/A | 6.0 μg/m3 (25) | 25.0 | |
| June 12, 2021, 3 a.m. | 11.7 ppb (12) | 2.5 ppb (3) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.23 ppb (3) | N/A | 6.0 μg/m3 (25) | 25.0 | |
| June 12, 2021, 2 a.m. | 9.7 ppb (10) | 2.0 ppb (2) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | 0.22 ppb (3) | N/A | 6.0 μg/m3 (25) | 25.0 | |
| June 12, 2021, 1 a.m. | 11.0 ppb (11) | 2.3 ppb (3) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.19 ppb (3) | N/A | 5.0 μg/m3 (21) | 21.0 | |
| June 12, 2021, midnight | 12.7 ppb (12) | 3.3 ppb (4) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.22 ppb (3) | N/A | 2.0 μg/m3 (9) | 12.0 | |
| June 11, 2021, 11 p.m. | 11.5 ppb (11) | 4.2 ppb (4) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | 0.21 ppb (3) | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 11, 2021, 10 p.m. | 13.7 ppb (13) | 4.8 ppb (5) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.21 ppb (3) | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 11, 2021, 9 p.m. | 18.1 ppb (18) | 6.3 ppb (6) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 0.23 ppb (3) | N/A | 4.0 μg/m3 (17) | 18.0 | |
| June 11, 2021, 8 p.m. | 34.9 ppb (33) | 17.2 ppb (17) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 0.22 ppb (3) | N/A | 8.0 μg/m3 (34) | 34.0 | |
| June 11, 2021, 7 p.m. | 52.2 ppb (50) | 26.0 ppb (25) | N/A | 26.0 ppb (25) | N/A | N/A | N/A | 0.36 ppb (5) | N/A | 9.0 μg/m3 (38) | 50.0 | |
| June 11, 2021, 6 p.m. | 30.4 ppb (29) | 13.8 ppb (14) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | 0.24 ppb (3) | N/A | 0.0 μg/m3 (0) | 29.0 | |
| June 11, 2021, 5 p.m. | 26.7 ppb (26) | 11.5 ppb (11) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.22 ppb (3) | N/A | 2.0 μg/m3 (9) | 26.0 | |
| June 11, 2021, 4 p.m. | 82.3 ppb (82) | 51.4 ppb (49) | N/A | 31.0 ppb (30) | N/A | N/A | N/A | 0.39 ppb (5) | N/A | 5.0 μg/m3 (21) | 82.0 | |
| June 11, 2021, 3 p.m. | 55.3 ppb (53) | 35.4 ppb (34) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.34 ppb (4) | N/A | 7.0 μg/m3 (30) | 53.0 | |
| June 11, 2021, 2 p.m. | 69.4 ppb (68) | 48.4 ppb (46) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | 0.46 ppb (6) | N/A | 5.0 μg/m3 (21) | 68.0 | |
| June 11, 2021, 1 p.m. | 23.8 ppb (23) | 11.5 ppb (11) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 0.29 ppb (4) | N/A | 2.0 μg/m3 (9) | 23.0 | |
| June 11, 2021, noon | 15.4 ppb (15) | 2.1 ppb (2) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | 0.21 ppb (3) | N/A | 3.0 μg/m3 (13) | 15.0 | |
| June 11, 2021, 11 a.m. | 21.2 ppb (20) | 5.3 ppb (5) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.21 ppb (3) | N/A | 5.0 μg/m3 (21) | 21.0 | |
| June 11, 2021, 10 a.m. | 17.0 ppb (17) | 6.0 ppb (6) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.23 ppb (3) | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 11, 2021, 9 a.m. | 4.6 ppb (5) | 0.1 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | N/A | 0.13 ppb (2) | N/A | -1.0 μg/m3 (0) | 5.0 | |
| June 11, 2021, 8 a.m. | 5.5 ppb (6) | 0.4 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | 0.17 ppb (3) | N/A | 1.0 μg/m3 (5) | 6.0 | |
| June 11, 2021, 7 a.m. | 10.0 ppb (10) | 0.6 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.2 ppb (3) | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 11, 2021, 6 a.m. | 16.5 ppb (16) | 1.7 ppb (2) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.26 ppb (4) | N/A | 5.0 μg/m3 (21) | 21.0 | |
| June 11, 2021, 5 a.m. | 10.6 ppb (10) | 2.5 ppb (3) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | 0.28 ppb (4) | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 11, 2021, 4 a.m. | 26.9 ppb (26) | 10.9 ppb (11) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.41 ppb (5) | N/A | 1.0 μg/m3 (5) | 26.0 | |
| June 11, 2021, 3 a.m. | 27.9 ppb (27) | 12.8 ppb (13) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.45 ppb (6) | N/A | 2.0 μg/m3 (9) | 27.0 | |
| June 11, 2021, 2 a.m. | 30.1 ppb (29) | 15.8 ppb (15) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | 0.46 ppb (6) | N/A | 5.0 μg/m3 (21) | 29.0 | |
| June 11, 2021, 1 a.m. | 25.4 ppb (24) | 13.9 ppb (14) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 0.39 ppb (5) | N/A | 4.0 μg/m3 (17) | 24.0 | |
| June 11, 2021, midnight | 24.7 ppb (24) | 13.5 ppb (13) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.32 ppb (4) | N/A | 2.0 μg/m3 (9) | 24.0 | |
| June 10, 2021, 11 p.m. | 24.5 ppb (24) | 12.6 ppb (12) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 0.29 ppb (4) | N/A | 1.0 μg/m3 (5) | 24.0 | |
| June 10, 2021, 10 p.m. | 27.2 ppb (26) | 16.5 ppb (16) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.27 ppb (4) | N/A | 3.0 μg/m3 (13) | 26.0 | |
| June 10, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.32 ppb (4) | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 10, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.3 ppb (4) | N/A | 0.0 μg/m3 (0) | 4.0 | |
| June 10, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.33 ppb (4) | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 10, 2021, 6 p.m. | 37.7 ppb (36) | 20.2 ppb (20) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 0.25 ppb (3) | N/A | 6.0 μg/m3 (25) | 36.0 | |
| June 10, 2021, 5 p.m. | 40.1 ppb (38) | 24.5 ppb (24) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.26 ppb (4) | N/A | 1.0 μg/m3 (5) | 38.0 | |
| June 10, 2021, 4 p.m. | 49.4 ppb (47) | 33.0 ppb (32) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.29 ppb (4) | N/A | 4.0 μg/m3 (17) | 47.0 | |
| June 10, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (30) | 30.0 | |
| June 10, 2021, 2 p.m. | 47.6 ppb (45) | 25.7 ppb (25) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | 0.33 ppb (4) | N/A | 5.0 μg/m3 (21) | 45.0 | |
| June 10, 2021, 1 p.m. | 44.5 ppb (42) | 27.0 ppb (26) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 0.37 ppb (5) | N/A | 4.0 μg/m3 (17) | 42.0 | |
| June 10, 2021, noon | 63.3 ppb (61) | 38.7 ppb (37) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 0.52 ppb (6) | N/A | 6.0 μg/m3 (25) | 61.0 | |
| June 10, 2021, 11 a.m. | 5.8 ppb (6) | 0.8 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | 0.14 ppb (2) | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 10, 2021, 10 a.m. | 3.3 ppb (4) | 0.1 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | 0.1 ppb (2) | N/A | 5.0 μg/m3 (21) | 21.0 | |
| June 10, 2021, 9 a.m. | 3.3 ppb (4) | 0.1 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | 0.09 ppb (2) | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 10, 2021, 8 a.m. | 3.8 ppb (4) | 0.2 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | N/A | 0.1 ppb (2) | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 10, 2021, 7 a.m. | 3.4 ppb (4) | 0.1 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | 0.09 ppb (2) | N/A | 4.0 μg/m3 (17) | 17.0 | |
| June 10, 2021, 6 a.m. | 5.6 ppb (6) | 0.2 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | 0.12 ppb (2) | N/A | 5.0 μg/m3 (21) | 21.0 | |
| June 10, 2021, 5 a.m. | 7.2 ppb (7) | 0.4 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | 0.17 ppb (3) | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 10, 2021, 4 a.m. | 10.1 ppb (10) | 0.9 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.18 ppb (3) | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 10, 2021, 3 a.m. | 17.6 ppb (17) | 5.2 ppb (5) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 0.37 ppb (5) | N/A | 5.0 μg/m3 (21) | 21.0 | |
| June 10, 2021, 2 a.m. | 30.4 ppb (29) | 14.5 ppb (14) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.52 ppb (6) | N/A | 2.0 μg/m3 (9) | 29.0 | |
| June 10, 2021, 1 a.m. | 48.1 ppb (46) | 25.1 ppb (24) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 0.57 ppb (7) | N/A | 4.0 μg/m3 (17) | 46.0 | |
| June 10, 2021, midnight | 36.1 ppb (35) | 19.5 ppb (19) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | 0.32 ppb (4) | N/A | 3.0 μg/m3 (13) | 35.0 | |
| June 9, 2021, 11 p.m. | 33.0 ppb (32) | 18.9 ppb (18) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | 0.4 ppb (5) | N/A | 3.0 μg/m3 (13) | 32.0 | |
| June 9, 2021, 10 p.m. | 38.1 ppb (36) | 22.1 ppb (21) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.39 ppb (5) | N/A | 0.0 μg/m3 (0) | 36.0 | |
| June 9, 2021, 9 p.m. | 36.5 ppb (35) | 21.4 ppb (21) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.38 ppb (5) | N/A | 3.0 μg/m3 (13) | 35.0 | |
| June 9, 2021, 8 p.m. | 41.1 ppb (39) | 25.9 ppb (25) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.39 ppb (5) | N/A | 6.0 μg/m3 (25) | 39.0 | |
| June 9, 2021, 7 p.m. | 40.0 ppb (38) | 24.2 ppb (23) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.39 ppb (5) | N/A | 4.0 μg/m3 (17) | 38.0 | |
| June 9, 2021, 6 p.m. | 50.0 ppb (48) | 29.7 ppb (29) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.31 ppb (4) | N/A | 3.0 μg/m3 (13) | 48.0 | |
| June 9, 2021, 5 p.m. | 64.6 ppb (63) | 40.5 ppb (39) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | 0.35 ppb (4) | N/A | 5.0 μg/m3 (21) | 63.0 | |
| June 9, 2021, 4 p.m. | 59.0 ppb (57) | 36.0 ppb (34) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 0.3 ppb (4) | N/A | 6.0 μg/m3 (25) | 57.0 | |
| June 9, 2021, 3 p.m. | 61.6 ppb (60) | 38.5 ppb (37) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 0.31 ppb (4) | N/A | 7.0 μg/m3 (30) | 60.0 | |
| June 9, 2021, 2 p.m. | 45.2 ppb (43) | 22.8 ppb (22) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | 0.34 ppb (4) | N/A | 4.0 μg/m3 (17) | 43.0 | |
| June 9, 2021, 1 p.m. | 35.4 ppb (34) | 18.2 ppb (18) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | 0.37 ppb (5) | N/A | 3.0 μg/m3 (13) | 34.0 | |
| June 9, 2021, noon | 17.7 ppb (17) | 4.8 ppb (5) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | 0.26 ppb (4) | N/A | 2.0 μg/m3 (9) | 17.0 | |
| June 9, 2021, 11 a.m. | 14.2 ppb (14) | 3.6 ppb (4) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.29 ppb (4) | N/A | 0.0 μg/m3 (0) | 14.0 | |
| June 9, 2021, 10 a.m. | 11.0 ppb (11) | 2.8 ppb (3) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | 0.18 ppb (3) | N/A | 2.0 μg/m3 (9) | 11.0 | |
| June 9, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| June 9, 2021, 8 a.m. | 8.8 ppb (9) | 1.9 ppb (2) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | 0.14 ppb (2) | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 9, 2021, 7 a.m. | 10.2 ppb (10) | 2.2 ppb (3) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | 0.21 ppb (3) | N/A | 1.0 μg/m3 (5) | 10.0 | |
| June 9, 2021, 6 a.m. | 15.4 ppb (15) | 4.3 ppb (5) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.24 ppb (3) | N/A | 3.0 μg/m3 (13) | 15.0 | |
| June 9, 2021, 5 a.m. | 15.8 ppb (15) | 4.0 ppb (4) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 0.3 ppb (4) | N/A | 5.0 μg/m3 (21) | 21.0 | |
| June 9, 2021, 4 a.m. | 19.1 ppb (19) | 5.1 ppb (5) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | 0.34 ppb (4) | N/A | 7.0 μg/m3 (30) | 30.0 | |
| June 9, 2021, 3 a.m. | 22.0 ppb (21) | 7.2 ppb (7) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.4 ppb (5) | N/A | 7.0 μg/m3 (30) | 30.0 | |
| June 9, 2021, 2 a.m. | 32.3 ppb (31) | 12.8 ppb (13) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.34 ppb (4) | N/A | 4.0 μg/m3 (17) | 31.0 | |
| June 9, 2021, 1 a.m. | 33.5 ppb (32) | 16.4 ppb (16) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | 0.39 ppb (5) | N/A | 6.0 μg/m3 (25) | 32.0 | |
| June 9, 2021, midnight | 37.1 ppb (35) | 18.2 ppb (18) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 0.41 ppb (5) | N/A | 4.0 μg/m3 (17) | 35.0 | |
| June 8, 2021, 11 p.m. | 37.1 ppb (35) | 20.3 ppb (20) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | 0.43 ppb (5) | N/A | 2.0 μg/m3 (9) | 35.0 | |
| June 8, 2021, 10 p.m. | 38.0 ppb (36) | 22.0 ppb (21) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.41 ppb (5) | N/A | 3.0 μg/m3 (13) | 36.0 | |
| June 8, 2021, 9 p.m. | 45.6 ppb (44) | 26.6 ppb (26) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 0.41 ppb (5) | N/A | 3.0 μg/m3 (13) | 44.0 | |
| June 8, 2021, 8 p.m. | 48.7 ppb (46) | 29.0 ppb (28) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.42 ppb (5) | N/A | 5.0 μg/m3 (21) | 46.0 | |
| June 8, 2021, 7 p.m. | 52.4 ppb (50) | 32.8 ppb (31) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.39 ppb (5) | N/A | 5.0 μg/m3 (21) | 50.0 | |
| June 8, 2021, 6 p.m. | 63.5 ppb (62) | 41.3 ppb (39) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | 0.35 ppb (4) | N/A | 6.0 μg/m3 (25) | 62.0 | |
| June 8, 2021, 5 p.m. | 79.0 ppb (78) | 53.7 ppb (51) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 0.44 ppb (5) | N/A | 8.0 μg/m3 (34) | 78.0 | |
| June 8, 2021, 4 p.m. | 90.1 ppb (90) | 62.5 ppb (61) | N/A | 28.0 ppb (27) | N/A | N/A | N/A | 0.35 ppb (4) | N/A | 11.0 μg/m3 (46) | 90.0 | |
| June 8, 2021, 3 p.m. | 32.3 ppb (31) | 20.8 ppb (20) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 0.21 ppb (3) | N/A | 2.0 μg/m3 (9) | 31.0 | |
| June 8, 2021, 2 p.m. | 8.8 ppb (9) | 2.6 ppb (3) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | 0.13 ppb (2) | N/A | 1.0 μg/m3 (5) | 9.0 | |
| June 8, 2021, 1 p.m. | 27.3 ppb (26) | 9.8 ppb (10) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | 0.32 ppb (4) | N/A | 2.0 μg/m3 (9) | 26.0 | |
| June 8, 2021, noon | 17.0 ppb (17) | 3.3 ppb (4) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | 0.21 ppb (3) | N/A | 3.0 μg/m3 (13) | 17.0 | |
| June 8, 2021, 11 a.m. | 7.9 ppb (8) | 0.3 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | 0.12 ppb (2) | N/A | 1.0 μg/m3 (5) | 8.0 | |
| June 8, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 8, 2021, 9 a.m. | 6.0 ppb (6) | 0.4 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | 0.11 ppb (2) | N/A | 2.0 μg/m3 (9) | 9.0 | |
| June 8, 2021, 8 a.m. | 8.4 ppb (8) | 0.3 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | 0.14 ppb (2) | N/A | 5.0 μg/m3 (21) | 21.0 | |
| June 8, 2021, 7 a.m. | 9.3 ppb (9) | 0.4 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.11 ppb (2) | N/A | 8.0 μg/m3 (34) | 34.0 | |
| June 8, 2021, 6 a.m. | 10.1 ppb (10) | 0.7 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.14 ppb (2) | N/A | 2.0 μg/m3 (9) | 10.0 | |
| June 8, 2021, 5 a.m. | 10.6 ppb (10) | 1.7 ppb (2) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.21 ppb (3) | N/A | 3.0 μg/m3 (13) | 13.0 | |
| June 8, 2021, 4 a.m. | 23.6 ppb (23) | 7.4 ppb (7) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.32 ppb (4) | N/A | 5.0 μg/m3 (21) | 23.0 | |
| June 8, 2021, 3 a.m. | 60.4 ppb (58) | 26.8 ppb (26) | N/A | 34.0 ppb (33) | N/A | N/A | N/A | 0.54 ppb (6) | N/A | 3.0 μg/m3 (13) | 58.0 | |
| June 8, 2021, 2 a.m. | 42.4 ppb (40) | 19.3 ppb (19) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 0.55 ppb (7) | N/A | 1.0 μg/m3 (5) | 40.0 | |
| June 8, 2021, 1 a.m. | 34.0 ppb (33) | 15.5 ppb (15) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 0.52 ppb (6) | N/A | 1.0 μg/m3 (5) | 33.0 | |
| June 8, 2021, midnight | 46.8 ppb (45) | 26.3 ppb (25) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.5 ppb (6) | N/A | 2.0 μg/m3 (9) | 45.0 | |
| June 7, 2021, 11 p.m. | 42.0 ppb (40) | 25.0 ppb (24) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | 0.46 ppb (6) | N/A | 2.0 μg/m3 (9) | 40.0 | |
| June 7, 2021, 10 p.m. | 45.0 ppb (43) | 26.9 ppb (26) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 0.51 ppb (6) | N/A | 5.0 μg/m3 (21) | 43.0 | |
| June 7, 2021, 9 p.m. | 34.6 ppb (33) | 18.3 ppb (18) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.35 ppb (4) | N/A | 5.0 μg/m3 (21) | 33.0 | |
| June 7, 2021, 8 p.m. | 19.7 ppb (19) | 8.5 ppb (9) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.27 ppb (4) | N/A | 2.0 μg/m3 (9) | 19.0 | |
| June 7, 2021, 7 p.m. | 35.7 ppb (34) | 19.1 ppb (19) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | 0.34 ppb (4) | N/A | 2.0 μg/m3 (9) | 34.0 |