Lake Oswego (Swest Bradbury Court) OR, US: 45.39916, -122.7455
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| April 11, 2021, 2 a.m. | 15.1 ppb (15) | 7.1 ppb (7) | N/A | 8.0 ppb (8) | N/A | N/A | 33.0 ppb (31) | 0.3 ppb (4) | N/A | 3.4 μg/m3 (15) | 31.0 | |
| April 11, 2021, 1 a.m. | 12.9 ppb (13) | 7.4 ppb (7) | N/A | 6.0 ppb (6) | N/A | N/A | 37.0 ppb (35) | 0.26 ppb (4) | N/A | 3.1 μg/m3 (13) | 35.0 | |
| April 11, 2021, midnight | 16.8 ppb (16) | 9.2 ppb (9) | N/A | 8.0 ppb (8) | N/A | N/A | 36.0 ppb (34) | 0.28 ppb (4) | N/A | 3.0 μg/m3 (13) | 34.0 | |
| April 10, 2021, 11 p.m. | 16.8 ppb (16) | 9.1 ppb (9) | N/A | 8.0 ppb (8) | N/A | N/A | 36.0 ppb (34) | 0.25 ppb (3) | N/A | 2.9 μg/m3 (13) | 34.0 | |
| April 10, 2021, 10 p.m. | 17.4 ppb (17) | 10.1 ppb (10) | N/A | 7.0 ppb (7) | N/A | N/A | 35.0 ppb (33) | 0.22 ppb (3) | N/A | 2.9 μg/m3 (13) | 33.0 | |
| April 10, 2021, 9 p.m. | 13.8 ppb (14) | 7.4 ppb (7) | N/A | 6.0 ppb (6) | N/A | N/A | 37.0 ppb (35) | 0.2 ppb (3) | N/A | 2.8 μg/m3 (12) | 35.0 | |
| April 10, 2021, 8 p.m. | 17.3 ppb (17) | 8.8 ppb (9) | N/A | 9.0 ppb (9) | N/A | N/A | 35.0 ppb (33) | 0.24 ppb (3) | N/A | 3.1 μg/m3 (13) | 33.0 | |
| April 10, 2021, 7 p.m. | 17.9 ppb (17) | 10.1 ppb (10) | N/A | 8.0 ppb (8) | N/A | N/A | 36.0 ppb (34) | 0.23 ppb (3) | N/A | 3.3 μg/m3 (14) | 34.0 | |
| April 10, 2021, 6 p.m. | 17.6 ppb (17) | 10.2 ppb (10) | N/A | 8.0 ppb (8) | N/A | N/A | 36.0 ppb (34) | 0.22 ppb (3) | N/A | 4.2 μg/m3 (18) | 34.0 | |
| April 10, 2021, 5 p.m. | 22.7 ppb (22) | 11.7 ppb (12) | N/A | 11.0 ppb (11) | N/A | N/A | 34.0 ppb (32) | 0.23 ppb (3) | N/A | 4.3 μg/m3 (18) | 32.0 | |
| April 10, 2021, 4 p.m. | 22.5 ppb (22) | 11.8 ppb (12) | N/A | 11.0 ppb (11) | N/A | N/A | 33.0 ppb (31) | 0.23 ppb (3) | N/A | 4.1 μg/m3 (18) | 31.0 | |
| April 10, 2021, 3 p.m. | 20.6 ppb (20) | 9.2 ppb (9) | N/A | 11.0 ppb (11) | N/A | N/A | 33.0 ppb (31) | 0.25 ppb (3) | N/A | 4.0 μg/m3 (17) | 31.0 | |
| April 10, 2021, 2 p.m. | 15.7 ppb (15) | 7.1 ppb (7) | N/A | 9.0 ppb (9) | N/A | N/A | 35.0 ppb (33) | 0.18 ppb (3) | N/A | 3.4 μg/m3 (15) | 33.0 | |
| April 10, 2021, 1 p.m. | 15.3 ppb (15) | 5.8 ppb (6) | N/A | 10.0 ppb (10) | N/A | N/A | 30.0 ppb (28) | 0.16 ppb (3) | N/A | 2.9 μg/m3 (13) | 28.0 | |
| April 10, 2021, noon | 17.4 ppb (17) | 7.2 ppb (7) | N/A | 10.0 ppb (10) | N/A | N/A | 25.0 ppb (24) | 0.13 ppb (2) | N/A | 4.4 μg/m3 (19) | 24.0 | |
| April 10, 2021, 11 a.m. | 6.6 ppb (7) | 2.4 ppb (3) | N/A | 4.0 ppb (4) | N/A | N/A | 31.0 ppb (29) | 0.09 ppb (2) | N/A | 4.4 μg/m3 (19) | 29.0 | |
| April 10, 2021, 10 a.m. | 5.7 ppb (6) | 1.9 ppb (2) | N/A | 4.0 ppb (4) | N/A | N/A | 35.0 ppb (33) | 0.1 ppb (2) | N/A | 4.3 μg/m3 (18) | 33.0 | |
| April 10, 2021, 9 a.m. | 3.7 ppb (4) | 0.6 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | 37.0 ppb (35) | 0.11 ppb (2) | N/A | 4.9 μg/m3 (21) | 35.0 | |
| April 10, 2021, 8 a.m. | 2.2 ppb (3) | 0.2 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | 40.0 ppb (38) | 0.09 ppb (2) | N/A | 4.1 μg/m3 (18) | 38.0 | |
| April 10, 2021, 7 a.m. | 4.2 ppb (4) | 0.6 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 37.0 ppb (35) | 0.14 ppb (2) | N/A | 5.7 μg/m3 (24) | 35.0 | |
| April 10, 2021, 6 a.m. | 7.6 ppb (8) | 2.4 ppb (3) | N/A | 5.0 ppb (5) | N/A | N/A | 39.0 ppb (37) | 0.16 ppb (3) | N/A | 4.2 μg/m3 (18) | 37.0 | |
| April 10, 2021, 5 a.m. | 11.3 ppb (11) | 3.4 ppb (4) | N/A | 8.0 ppb (8) | N/A | N/A | 37.0 ppb (35) | 0.19 ppb (3) | N/A | 3.7 μg/m3 (16) | 35.0 | |
| April 10, 2021, 4 a.m. | 15.0 ppb (15) | 5.4 ppb (6) | N/A | 10.0 ppb (10) | N/A | N/A | 34.0 ppb (32) | 0.2 ppb (3) | N/A | 3.8 μg/m3 (16) | 32.0 | |
| April 10, 2021, 3 a.m. | 20.6 ppb (20) | 7.9 ppb (8) | N/A | 13.0 ppb (13) | N/A | N/A | 31.0 ppb (29) | 0.31 ppb (4) | N/A | 3.6 μg/m3 (16) | 29.0 | |
| April 10, 2021, 2 a.m. | 18.4 ppb (18) | 8.0 ppb (8) | N/A | 11.0 ppb (11) | N/A | N/A | 35.0 ppb (33) | 0.23 ppb (3) | N/A | 3.3 μg/m3 (14) | 33.0 | |
| April 10, 2021, 1 a.m. | 15.7 ppb (15) | 7.8 ppb (8) | N/A | 8.0 ppb (8) | N/A | N/A | 37.0 ppb (35) | 0.23 ppb (3) | N/A | 3.4 μg/m3 (15) | 35.0 | |
| April 10, 2021, midnight | 23.1 ppb (22) | 12.9 ppb (13) | N/A | 10.0 ppb (10) | N/A | N/A | 35.0 ppb (33) | 0.26 ppb (4) | N/A | 3.9 μg/m3 (17) | 33.0 | |
| April 9, 2021, 11 p.m. | 20.5 ppb (20) | 9.8 ppb (10) | N/A | 11.0 ppb (11) | N/A | N/A | 33.0 ppb (31) | 0.22 ppb (3) | N/A | 4.5 μg/m3 (19) | 31.0 | |
| April 9, 2021, 10 p.m. | 22.1 ppb (21) | 11.6 ppb (11) | N/A | 11.0 ppb (11) | N/A | N/A | 33.0 ppb (31) | 0.23 ppb (3) | N/A | 4.7 μg/m3 (20) | 31.0 | |
| April 9, 2021, 9 p.m. | 22.5 ppb (22) | 12.6 ppb (12) | N/A | 10.0 ppb (10) | N/A | N/A | 35.0 ppb (33) | 0.2 ppb (3) | N/A | 4.9 μg/m3 (21) | 33.0 | |
| April 9, 2021, 8 p.m. | 21.0 ppb (20) | 12.3 ppb (12) | N/A | 9.0 ppb (9) | N/A | N/A | 35.0 ppb (33) | 0.2 ppb (3) | N/A | 5.3 μg/m3 (23) | 33.0 | |
| April 9, 2021, 7 p.m. | 21.9 ppb (21) | 11.9 ppb (12) | N/A | 9.0 ppb (9) | N/A | N/A | 32.0 ppb (30) | 0.18 ppb (3) | N/A | 5.4 μg/m3 (23) | 30.0 | |
| April 9, 2021, 6 p.m. | 28.6 ppb (27) | 16.0 ppb (16) | N/A | 13.0 ppb (13) | N/A | N/A | 30.0 ppb (28) | 0.22 ppb (3) | N/A | 4.5 μg/m3 (19) | 28.0 | |
| April 9, 2021, 5 p.m. | 21.9 ppb (21) | 12.0 ppb (12) | N/A | 10.0 ppb (10) | N/A | N/A | 30.0 ppb (28) | 0.18 ppb (3) | N/A | 4.5 μg/m3 (19) | 28.0 | |
| April 9, 2021, 4 p.m. | 40.2 ppb (38) | 23.6 ppb (23) | N/A | 17.0 ppb (17) | N/A | N/A | 18.0 ppb (17) | 0.24 ppb (3) | N/A | 5.2 μg/m3 (22) | 38.0 | |
| April 9, 2021, 3 p.m. | 39.1 ppb (37) | 21.7 ppb (21) | N/A | 18.0 ppb (17) | N/A | N/A | 11.0 ppb (11) | 0.28 ppb (4) | N/A | 5.5 μg/m3 (23) | 37.0 | |
| April 9, 2021, 2 p.m. | 89.8 ppb (90) | 66.3 ppb (65) | N/A | 24.0 ppb (23) | N/A | N/A | 1.0 ppb (1) | 0.45 ppb (6) | N/A | 6.8 μg/m3 (29) | 90.0 | |
| April 9, 2021, 1 p.m. | 111.2 ppb (103) | 83.8 ppb (83) | N/A | 28.0 ppb (27) | N/A | N/A | 1.0 ppb (1) | 0.64 ppb (7) | N/A | 7.7 μg/m3 (33) | 103.0 | |
| April 9, 2021, noon | 82.2 ppb (82) | 57.6 ppb (55) | N/A | 25.0 ppb (24) | N/A | N/A | 1.0 ppb (1) | 0.45 ppb (6) | N/A | 8.0 μg/m3 (34) | 82.0 | |
| April 9, 2021, 11 a.m. | 58.9 ppb (57) | 34.7 ppb (33) | N/A | 24.0 ppb (23) | N/A | N/A | 1.0 ppb (1) | 0.32 ppb (4) | N/A | 7.6 μg/m3 (32) | 57.0 | |
| April 9, 2021, 10 a.m. | 34.1 ppb (33) | 12.3 ppb (12) | N/A | 22.0 ppb (21) | N/A | N/A | 2.0 ppb (2) | 0.28 ppb (4) | N/A | 6.9 μg/m3 (29) | 33.0 | |
| April 9, 2021, 9 a.m. | 16.0 ppb (16) | 1.4 ppb (2) | N/A | 15.0 ppb (15) | N/A | N/A | 10.0 ppb (10) | 0.23 ppb (3) | N/A | 5.9 μg/m3 (25) | 25.0 | |
| April 9, 2021, 8 a.m. | 17.5 ppb (17) | 1.4 ppb (2) | N/A | 16.0 ppb (16) | N/A | N/A | 10.0 ppb (10) | 0.25 ppb (3) | N/A | 6.3 μg/m3 (27) | 27.0 | |
| April 9, 2021, 7 a.m. | 18.1 ppb (18) | 2.1 ppb (2) | N/A | 16.0 ppb (16) | N/A | N/A | 15.0 ppb (14) | 0.24 ppb (3) | N/A | 5.2 μg/m3 (22) | 22.0 | |
| April 9, 2021, 6 a.m. | 10.0 ppb (10) | 0.3 ppb (1) | N/A | 10.0 ppb (10) | N/A | N/A | 24.0 ppb (23) | 0.17 ppb (3) | N/A | 5.4 μg/m3 (23) | 23.0 | |
| April 9, 2021, 5 a.m. | 21.0 ppb (20) | 7.1 ppb (7) | N/A | 14.0 ppb (14) | N/A | N/A | 28.0 ppb (26) | 0.21 ppb (3) | N/A | 4.0 μg/m3 (17) | 26.0 | |
| April 9, 2021, 4 a.m. | 15.8 ppb (15) | 5.2 ppb (5) | N/A | 11.0 ppb (11) | N/A | N/A | 29.0 ppb (27) | 0.27 ppb (4) | N/A | 4.8 μg/m3 (20) | 27.0 | |
| April 9, 2021, 3 a.m. | 19.0 ppb (18) | 1.8 ppb (2) | N/A | 17.0 ppb (17) | N/A | N/A | 17.0 ppb (16) | 0.3 ppb (4) | N/A | 7.9 μg/m3 (33) | 33.0 | |
| April 9, 2021, 2 a.m. | 35.5 ppb (34) | 15.3 ppb (15) | N/A | 20.0 ppb (19) | N/A | N/A | 24.0 ppb (23) | 0.46 ppb (6) | N/A | 4.4 μg/m3 (19) | 34.0 | |
| April 9, 2021, 1 a.m. | 32.2 ppb (31) | 14.6 ppb (14) | N/A | 18.0 ppb (17) | N/A | N/A | 26.0 ppb (25) | 0.41 ppb (5) | N/A | 4.5 μg/m3 (19) | 31.0 | |
| April 9, 2021, midnight | 25.8 ppb (25) | 12.1 ppb (12) | N/A | 14.0 ppb (14) | N/A | N/A | 32.0 ppb (30) | 0.28 ppb (4) | N/A | 4.2 μg/m3 (18) | 30.0 | |
| April 8, 2021, 11 p.m. | 14.4 ppb (14) | 7.6 ppb (8) | N/A | 7.0 ppb (7) | N/A | N/A | 38.0 ppb (36) | 0.19 ppb (3) | N/A | 3.7 μg/m3 (16) | 36.0 | |
| April 8, 2021, 10 p.m. | 21.0 ppb (20) | 10.5 ppb (10) | N/A | 11.0 ppb (11) | N/A | N/A | 35.0 ppb (33) | 0.24 ppb (3) | N/A | 3.8 μg/m3 (16) | 33.0 | |
| April 8, 2021, 9 p.m. | 35.2 ppb (34) | 19.4 ppb (19) | N/A | 16.0 ppb (16) | N/A | N/A | 31.0 ppb (29) | 0.31 ppb (4) | N/A | 4.0 μg/m3 (17) | 34.0 | |
| April 8, 2021, 8 p.m. | 28.5 ppb (27) | 15.0 ppb (15) | N/A | 14.0 ppb (14) | N/A | N/A | 34.0 ppb (32) | 0.22 ppb (3) | N/A | 3.7 μg/m3 (16) | 32.0 | |
| April 8, 2021, 7 p.m. | 32.0 ppb (31) | 17.9 ppb (17) | N/A | 14.0 ppb (14) | N/A | N/A | 31.0 ppb (29) | 0.26 ppb (4) | N/A | 3.7 μg/m3 (16) | 31.0 | |
| April 8, 2021, 6 p.m. | 43.6 ppb (42) | 24.4 ppb (24) | N/A | 19.0 ppb (18) | N/A | N/A | 27.0 ppb (25) | 0.24 ppb (3) | N/A | 3.8 μg/m3 (16) | 42.0 | |
| April 8, 2021, 5 p.m. | 39.7 ppb (38) | 24.1 ppb (23) | N/A | 16.0 ppb (16) | N/A | N/A | 27.0 ppb (25) | 0.24 ppb (3) | N/A | 3.5 μg/m3 (15) | 38.0 | |
| April 8, 2021, 4 p.m. | 54.8 ppb (52) | 33.3 ppb (32) | N/A | 22.0 ppb (21) | N/A | N/A | 20.0 ppb (19) | 0.35 ppb (4) | N/A | 4.4 μg/m3 (19) | 52.0 | |
| April 8, 2021, 3 p.m. | 69.0 ppb (67) | 43.4 ppb (41) | N/A | 26.0 ppb (25) | N/A | N/A | 12.0 ppb (12) | 0.47 ppb (6) | N/A | 5.3 μg/m3 (23) | 67.0 | |
| April 8, 2021, 2 p.m. | 82.3 ppb (82) | 53.0 ppb (50) | N/A | 30.0 ppb (29) | N/A | N/A | 8.0 ppb (8) | 0.59 ppb (7) | N/A | 4.7 μg/m3 (20) | 82.0 | |
| April 8, 2021, 1 p.m. | 67.5 ppb (66) | 40.6 ppb (39) | N/A | 27.0 ppb (26) | N/A | N/A | 8.0 ppb (8) | 0.36 ppb (5) | N/A | 3.9 μg/m3 (17) | 66.0 | |
| April 8, 2021, noon | 45.0 ppb (43) | 23.5 ppb (23) | N/A | 22.0 ppb (21) | N/A | N/A | 12.0 ppb (12) | 0.25 ppb (3) | N/A | 3.1 μg/m3 (13) | 43.0 | |
| April 8, 2021, 11 a.m. | 26.9 ppb (26) | 11.8 ppb (12) | N/A | 15.0 ppb (15) | N/A | N/A | 20.0 ppb (19) | 0.14 ppb (2) | N/A | 2.7 μg/m3 (12) | 26.0 | |
| April 8, 2021, 10 a.m. | 15.7 ppb (15) | 6.4 ppb (7) | N/A | 9.0 ppb (9) | N/A | N/A | 26.0 ppb (25) | 0.09 ppb (2) | N/A | 2.3 μg/m3 (10) | 25.0 | |
| April 8, 2021, 9 a.m. | 9.9 ppb (10) | 3.6 ppb (4) | N/A | 6.0 ppb (6) | N/A | N/A | 31.0 ppb (29) | 0.12 ppb (2) | N/A | 3.3 μg/m3 (14) | 29.0 | |
| April 8, 2021, 8 a.m. | 7.4 ppb (7) | 2.8 ppb (3) | N/A | 5.0 ppb (5) | N/A | N/A | 34.0 ppb (32) | 0.11 ppb (2) | N/A | 3.1 μg/m3 (13) | 32.0 | |
| April 8, 2021, 7 a.m. | 6.5 ppb (7) | 1.8 ppb (2) | N/A | 5.0 ppb (5) | N/A | N/A | 33.0 ppb (31) | 0.12 ppb (2) | N/A | 3.1 μg/m3 (13) | 31.0 | |
| April 8, 2021, 6 a.m. | 8.0 ppb (8) | 3.1 ppb (3) | N/A | 5.0 ppb (5) | N/A | N/A | 33.0 ppb (31) | 0.12 ppb (2) | N/A | 2.4 μg/m3 (10) | 31.0 | |
| April 8, 2021, 5 a.m. | 8.5 ppb (9) | 3.0 ppb (3) | N/A | 6.0 ppb (6) | N/A | N/A | 35.0 ppb (33) | 0.11 ppb (2) | N/A | 2.4 μg/m3 (10) | 33.0 | |
| April 8, 2021, 4 a.m. | 10.6 ppb (10) | 3.9 ppb (4) | N/A | 7.0 ppb (7) | N/A | N/A | 35.0 ppb (33) | 0.14 ppb (2) | N/A | 2.4 μg/m3 (10) | 33.0 | |
| April 8, 2021, 3 a.m. | 16.9 ppb (16) | 7.6 ppb (8) | N/A | 9.0 ppb (9) | N/A | N/A | 30.0 ppb (28) | 0.21 ppb (3) | N/A | 2.6 μg/m3 (11) | 28.0 | |
| April 8, 2021, 2 a.m. | 21.1 ppb (20) | 9.6 ppb (10) | N/A | 12.0 ppb (12) | N/A | N/A | 29.0 ppb (27) | 0.23 ppb (3) | N/A | 2.5 μg/m3 (11) | 27.0 | |
| April 8, 2021, 1 a.m. | 20.2 ppb (20) | 9.2 ppb (9) | N/A | 11.0 ppb (11) | N/A | N/A | 30.0 ppb (28) | 0.25 ppb (3) | N/A | 2.7 μg/m3 (12) | 28.0 | |
| April 8, 2021, midnight | 28.7 ppb (28) | 14.0 ppb (14) | N/A | 15.0 ppb (15) | N/A | N/A | 25.0 ppb (24) | 0.26 ppb (4) | N/A | 3.7 μg/m3 (16) | 28.0 | |
| April 7, 2021, 11 p.m. | 25.1 ppb (24) | 12.0 ppb (12) | N/A | 13.0 ppb (13) | N/A | N/A | 24.0 ppb (23) | 0.27 ppb (4) | N/A | 6.2 μg/m3 (26) | 26.0 | |
| April 7, 2021, 10 p.m. | 15.7 ppb (15) | 7.1 ppb (7) | N/A | 9.0 ppb (9) | N/A | N/A | 29.0 ppb (27) | 0.17 ppb (3) | N/A | 6.5 μg/m3 (28) | 28.0 | |
| April 7, 2021, 9 p.m. | 19.1 ppb (19) | 8.6 ppb (9) | N/A | 11.0 ppb (11) | N/A | N/A | 28.0 ppb (26) | 0.2 ppb (3) | N/A | 6.5 μg/m3 (28) | 28.0 | |
| April 7, 2021, 8 p.m. | 29.9 ppb (29) | 14.0 ppb (14) | N/A | 16.0 ppb (16) | N/A | N/A | 25.0 ppb (24) | 0.19 ppb (3) | N/A | 6.3 μg/m3 (27) | 29.0 | |
| April 7, 2021, 7 p.m. | 25.6 ppb (25) | 12.1 ppb (12) | N/A | 14.0 ppb (14) | N/A | N/A | 26.0 ppb (25) | 0.17 ppb (3) | N/A | 5.7 μg/m3 (24) | 25.0 | |
| April 7, 2021, 6 p.m. | 23.6 ppb (23) | 14.5 ppb (14) | N/A | 9.0 ppb (9) | N/A | N/A | 24.0 ppb (23) | 0.17 ppb (3) | N/A | 5.3 μg/m3 (23) | 23.0 | |
| April 7, 2021, 5 p.m. | 34.8 ppb (33) | 21.3 ppb (21) | N/A | 14.0 ppb (14) | N/A | N/A | 14.0 ppb (13) | 0.28 ppb (4) | N/A | 7.5 μg/m3 (32) | 33.0 | |
| April 7, 2021, 4 p.m. | 17.1 ppb (17) | 6.4 ppb (7) | N/A | 11.0 ppb (11) | N/A | N/A | 16.0 ppb (15) | 0.17 ppb (3) | N/A | 8.1 μg/m3 (34) | 34.0 | |
| April 7, 2021, 3 p.m. | 12.7 ppb (12) | 3.9 ppb (4) | N/A | 9.0 ppb (9) | N/A | N/A | 16.0 ppb (15) | 0.22 ppb (3) | N/A | 7.5 μg/m3 (32) | 32.0 | |
| April 7, 2021, 2 p.m. | 15.2 ppb (15) | 3.1 ppb (3) | N/A | 12.0 ppb (12) | N/A | N/A | 9.0 ppb (9) | 0.29 ppb (4) | N/A | 9.0 μg/m3 (38) | 38.0 | |
| April 7, 2021, 1 p.m. | 14.4 ppb (14) | 2.8 ppb (3) | N/A | 12.0 ppb (12) | N/A | N/A | 11.0 ppb (11) | 0.18 ppb (3) | N/A | 9.6 μg/m3 (40) | 40.0 | |
| April 7, 2021, noon | 20.2 ppb (20) | 6.8 ppb (7) | N/A | 13.0 ppb (13) | N/A | N/A | 3.0 ppb (3) | 0.29 ppb (4) | N/A | 11.3 μg/m3 (48) | 48.0 | |
| April 7, 2021, 11 a.m. | 22.6 ppb (22) | 8.0 ppb (8) | N/A | 15.0 ppb (15) | N/A | N/A | 3.0 ppb (3) | 0.26 ppb (4) | N/A | 10.8 μg/m3 (46) | 46.0 | |
| April 7, 2021, 10 a.m. | 23.2 ppb (22) | 8.3 ppb (8) | N/A | 15.0 ppb (15) | N/A | N/A | 3.0 ppb (3) | 0.27 ppb (4) | N/A | 9.9 μg/m3 (42) | 42.0 | |
| April 7, 2021, 9 a.m. | 18.7 ppb (18) | 4.5 ppb (5) | N/A | 14.0 ppb (14) | N/A | N/A | 3.0 ppb (3) | 0.3 ppb (4) | N/A | 9.1 μg/m3 (38) | 38.0 | |
| April 7, 2021, 8 a.m. | 21.9 ppb (21) | 6.0 ppb (6) | N/A | 16.0 ppb (16) | N/A | N/A | 4.0 ppb (4) | 0.3 ppb (4) | N/A | 10.0 μg/m3 (42) | 42.0 | |
| April 7, 2021, 7 a.m. | 21.6 ppb (21) | 6.2 ppb (6) | N/A | 15.0 ppb (15) | N/A | N/A | 6.0 ppb (6) | 0.34 ppb (4) | N/A | 9.8 μg/m3 (41) | 41.0 | |
| April 7, 2021, 6 a.m. | 14.3 ppb (14) | 1.0 ppb (1) | N/A | 13.0 ppb (13) | N/A | N/A | 10.0 ppb (10) | 0.32 ppb (4) | N/A | 10.4 μg/m3 (44) | 44.0 | |
| April 7, 2021, 5 a.m. | 19.4 ppb (19) | 2.0 ppb (2) | N/A | 17.0 ppb (17) | N/A | N/A | 9.0 ppb (9) | 0.37 ppb (5) | N/A | 13.4 μg/m3 (54) | 54.0 | |
| April 7, 2021, 4 a.m. | 15.9 ppb (15) | 0.6 ppb (1) | N/A | 15.0 ppb (15) | N/A | N/A | 14.0 ppb (13) | 0.32 ppb (4) | N/A | 10.2 μg/m3 (43) | 43.0 | |
| April 7, 2021, 3 a.m. | 28.1 ppb (27) | 4.6 ppb (5) | N/A | 23.0 ppb (22) | N/A | N/A | 14.0 ppb (13) | 0.25 ppb (3) | N/A | 9.4 μg/m3 (40) | 40.0 | |
| April 7, 2021, 2 a.m. | 10.7 ppb (11) | 1.1 ppb (2) | N/A | 10.0 ppb (10) | N/A | N/A | 34.0 ppb (32) | 0.21 ppb (3) | N/A | 4.9 μg/m3 (21) | 32.0 | |
| April 7, 2021, 1 a.m. | 5.1 ppb (5) | 0.5 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 41.0 ppb (38) | 0.15 ppb (2) | N/A | 4.2 μg/m3 (18) | 38.0 | |
| April 7, 2021, midnight | 27.8 ppb (27) | 13.0 ppb (13) | N/A | 15.0 ppb (15) | N/A | N/A | 33.0 ppb (31) | 0.37 ppb (5) | N/A | 4.6 μg/m3 (20) | 31.0 | |
| April 6, 2021, 11 p.m. | 26.4 ppb (25) | 13.0 ppb (13) | N/A | 14.0 ppb (14) | N/A | N/A | 33.0 ppb (31) | 0.27 ppb (4) | N/A | 4.6 μg/m3 (20) | 31.0 | |
| April 6, 2021, 10 p.m. | 27.3 ppb (26) | 14.6 ppb (14) | N/A | 13.0 ppb (13) | N/A | N/A | 33.0 ppb (31) | 0.3 ppb (4) | N/A | 4.6 μg/m3 (20) | 31.0 | |
| April 6, 2021, 9 p.m. | 25.1 ppb (24) | 14.2 ppb (14) | N/A | 11.0 ppb (11) | N/A | N/A | 30.0 ppb (28) | 0.26 ppb (4) | N/A | 4.8 μg/m3 (20) | 28.0 | |
| April 6, 2021, 8 p.m. | 30.4 ppb (29) | 17.8 ppb (17) | N/A | 13.0 ppb (13) | N/A | N/A | 26.0 ppb (25) | 0.24 ppb (3) | N/A | 5.7 μg/m3 (24) | 29.0 | |
| April 6, 2021, 7 p.m. | 35.1 ppb (34) | 20.6 ppb (20) | N/A | 15.0 ppb (15) | N/A | N/A | 22.0 ppb (21) | 0.26 ppb (4) | N/A | 6.5 μg/m3 (28) | 34.0 | |
| April 6, 2021, 6 p.m. | 37.4 ppb (36) | 22.6 ppb (22) | N/A | 15.0 ppb (15) | N/A | N/A | 19.0 ppb (18) | 0.25 ppb (3) | N/A | 6.6 μg/m3 (28) | 36.0 | |
| April 6, 2021, 5 p.m. | 39.8 ppb (38) | 24.1 ppb (23) | N/A | 16.0 ppb (16) | N/A | N/A | 17.0 ppb (16) | 0.33 ppb (4) | N/A | 6.7 μg/m3 (28) | 38.0 | |
| April 6, 2021, 4 p.m. | 60.8 ppb (59) | 38.9 ppb (37) | N/A | 22.0 ppb (21) | N/A | N/A | 14.0 ppb (13) | 0.47 ppb (6) | N/A | 6.6 μg/m3 (28) | 59.0 | |
| April 6, 2021, 3 p.m. | 96.2 ppb (96) | 71.9 ppb (71) | N/A | 26.0 ppb (25) | N/A | N/A | 6.0 ppb (6) | 0.58 ppb (7) | N/A | 7.5 μg/m3 (32) | 96.0 | |
| April 6, 2021, 2 p.m. | 136.7 ppb (108) | 109.6 ppb (103) | N/A | 29.0 ppb (28) | N/A | N/A | 2.0 ppb (2) | 0.79 ppb (10) | N/A | 8.7 μg/m3 (37) | 108.0 | |
| April 6, 2021, 1 p.m. | 102.4 ppb (102) | 78.3 ppb (77) | N/A | 25.0 ppb (24) | N/A | N/A | 1.0 ppb (1) | 0.53 ppb (6) | N/A | 8.2 μg/m3 (35) | 102.0 | |
| April 6, 2021, noon | 80.9 ppb (80) | 57.6 ppb (55) | N/A | 24.0 ppb (23) | N/A | N/A | 1.0 ppb (1) | 0.45 ppb (6) | N/A | 7.3 μg/m3 (31) | 80.0 | |
| April 6, 2021, 11 a.m. | 19.1 ppb (19) | 4.2 ppb (4) | N/A | 15.0 ppb (15) | N/A | N/A | 4.0 ppb (4) | 0.21 ppb (3) | N/A | 6.9 μg/m3 (29) | 29.0 | |
| April 6, 2021, 10 a.m. | 13.7 ppb (13) | 1.5 ppb (2) | N/A | 12.0 ppb (12) | N/A | N/A | 8.0 ppb (8) | 0.17 ppb (3) | N/A | 6.7 μg/m3 (28) | 28.0 | |
| April 6, 2021, 9 a.m. | 11.5 ppb (11) | 0.7 ppb (1) | N/A | 11.0 ppb (11) | N/A | N/A | 12.0 ppb (12) | 0.21 ppb (3) | N/A | 7.0 μg/m3 (30) | 30.0 | |
| April 6, 2021, 8 a.m. | 11.9 ppb (12) | 0.8 ppb (1) | N/A | 11.0 ppb (11) | N/A | N/A | 16.0 ppb (15) | 0.17 ppb (3) | N/A | 5.4 μg/m3 (23) | 23.0 | |
| April 6, 2021, 7 a.m. | 9.3 ppb (9) | 0.3 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | 19.0 ppb (18) | 0.15 ppb (2) | N/A | 5.5 μg/m3 (23) | 23.0 | |
| April 6, 2021, 6 a.m. | 8.6 ppb (9) | 1.7 ppb (2) | N/A | 7.0 ppb (7) | N/A | N/A | 25.0 ppb (24) | 0.15 ppb (2) | N/A | 4.8 μg/m3 (20) | 24.0 | |
| April 6, 2021, 5 a.m. | 15.3 ppb (15) | 6.1 ppb (6) | N/A | 9.0 ppb (9) | N/A | N/A | 26.0 ppb (25) | 0.2 ppb (3) | N/A | 4.7 μg/m3 (20) | 25.0 | |
| April 6, 2021, 4 a.m. | 17.5 ppb (17) | 5.1 ppb (5) | N/A | 12.0 ppb (12) | N/A | N/A | 24.0 ppb (23) | 0.26 ppb (4) | N/A | 7.9 μg/m3 (33) | 33.0 | |
| April 6, 2021, 3 a.m. | 11.1 ppb (11) | 0.4 ppb (1) | N/A | 11.0 ppb (11) | N/A | N/A | 31.0 ppb (29) | 0.19 ppb (3) | N/A | 9.3 μg/m3 (39) | 39.0 | |
| April 6, 2021, 2 a.m. | 5.9 ppb (6) | 0.7 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 39.0 ppb (37) | 0.19 ppb (3) | N/A | 7.5 μg/m3 (32) | 37.0 | |
| April 6, 2021, 1 a.m. | 17.3 ppb (17) | 6.3 ppb (6) | N/A | 11.0 ppb (11) | N/A | N/A | 33.0 ppb (31) | 0.26 ppb (4) | N/A | 5.7 μg/m3 (24) | 31.0 | |
| April 6, 2021, midnight | 15.7 ppb (15) | 7.6 ppb (8) | N/A | 8.0 ppb (8) | N/A | N/A | 36.0 ppb (34) | 0.22 ppb (3) | N/A | 3.4 μg/m3 (15) | 34.0 | |
| April 5, 2021, 11 p.m. | 20.0 ppb (19) | 11.0 ppb (11) | N/A | 9.0 ppb (9) | N/A | N/A | 34.0 ppb (32) | 0.23 ppb (3) | N/A | 3.2 μg/m3 (14) | 32.0 | |
| April 5, 2021, 10 p.m. | 16.1 ppb (16) | 8.3 ppb (8) | N/A | 9.0 ppb (9) | N/A | N/A | 36.0 ppb (34) | 0.2 ppb (3) | N/A | 3.2 μg/m3 (14) | 34.0 | |
| April 5, 2021, 9 p.m. | 23.6 ppb (23) | 13.9 ppb (14) | N/A | 10.0 ppb (10) | N/A | N/A | 34.0 ppb (32) | 0.23 ppb (3) | N/A | 3.2 μg/m3 (14) | 32.0 | |
| April 5, 2021, 8 p.m. | 17.9 ppb (17) | 9.8 ppb (10) | N/A | 8.0 ppb (8) | N/A | N/A | 34.0 ppb (32) | N/A | N/A | 3.2 μg/m3 (14) | 32.0 | |
| April 5, 2021, 7 p.m. | 25.6 ppb (25) | 15.0 ppb (15) | N/A | 11.0 ppb (11) | N/A | N/A | 29.0 ppb (27) | N/A | N/A | 3.6 μg/m3 (16) | 27.0 | |
| April 5, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (26) | 0.18 ppb (3) | N/A | 3.9 μg/m3 (17) | 26.0 | |
| April 5, 2021, 5 p.m. | 33.9 ppb (32) | 19.9 ppb (19) | N/A | 14.0 ppb (14) | N/A | N/A | 23.0 ppb (22) | 0.23 ppb (3) | N/A | 4.1 μg/m3 (18) | 32.0 | |
| April 5, 2021, 4 p.m. | 58.3 ppb (56) | 37.7 ppb (36) | N/A | 21.0 ppb (20) | N/A | N/A | 15.0 ppb (14) | 0.36 ppb (5) | N/A | 5.6 μg/m3 (24) | 56.0 | |
| April 5, 2021, 3 p.m. | 40.6 ppb (39) | 23.3 ppb (22) | N/A | 18.0 ppb (17) | N/A | N/A | 9.0 ppb (9) | 0.27 ppb (4) | N/A | 6.8 μg/m3 (29) | 39.0 | |
| April 5, 2021, 2 p.m. | 32.9 ppb (32) | 13.8 ppb (14) | N/A | 19.0 ppb (18) | N/A | N/A | 6.0 ppb (6) | 0.35 ppb (4) | N/A | 6.3 μg/m3 (27) | 32.0 | |
| April 5, 2021, 1 p.m. | 35.2 ppb (34) | 13.6 ppb (13) | N/A | 22.0 ppb (21) | N/A | N/A | 2.0 ppb (2) | 0.3 ppb (4) | N/A | 6.9 μg/m3 (29) | 34.0 | |
| April 5, 2021, noon | 20.0 ppb (19) | 5.1 ppb (5) | N/A | 15.0 ppb (15) | N/A | N/A | 7.0 ppb (7) | 0.19 ppb (3) | N/A | 5.4 μg/m3 (23) | 23.0 | |
| April 5, 2021, 11 a.m. | 15.7 ppb (15) | 2.1 ppb (2) | N/A | 14.0 ppb (14) | N/A | N/A | 9.0 ppb (9) | 0.16 ppb (3) | N/A | 5.4 μg/m3 (23) | 23.0 | |
| April 5, 2021, 10 a.m. | 13.9 ppb (14) | 1.9 ppb (2) | N/A | 12.0 ppb (12) | N/A | N/A | 12.0 ppb (12) | 0.15 ppb (2) | N/A | 5.7 μg/m3 (24) | 24.0 | |
| April 5, 2021, 9 a.m. | 23.9 ppb (23) | 5.6 ppb (6) | N/A | 18.0 ppb (17) | N/A | N/A | 10.0 ppb (10) | 0.14 ppb (2) | N/A | 4.5 μg/m3 (19) | 23.0 | |
| April 5, 2021, 8 a.m. | 14.3 ppb (14) | 2.4 ppb (3) | N/A | 12.0 ppb (12) | N/A | N/A | 21.0 ppb (20) | 0.11 ppb (2) | N/A | 3.2 μg/m3 (14) | 20.0 | |
| April 5, 2021, 7 a.m. | 8.7 ppb (9) | 1.1 ppb (2) | N/A | 8.0 ppb (8) | N/A | N/A | 26.0 ppb (25) | 0.13 ppb (2) | N/A | 3.2 μg/m3 (14) | 25.0 | |
| April 5, 2021, 6 a.m. | 8.5 ppb (9) | 1.9 ppb (2) | N/A | 7.0 ppb (7) | N/A | N/A | 33.0 ppb (31) | 0.16 ppb (3) | N/A | 3.2 μg/m3 (14) | 31.0 | |
| April 5, 2021, 5 a.m. | 9.1 ppb (9) | 3.8 ppb (4) | N/A | 5.0 ppb (5) | N/A | N/A | 36.0 ppb (34) | 0.15 ppb (2) | N/A | 3.2 μg/m3 (14) | 34.0 | |
| April 5, 2021, 4 a.m. | 7.4 ppb (7) | 3.2 ppb (4) | N/A | 4.0 ppb (4) | N/A | N/A | 38.0 ppb (36) | 0.18 ppb (3) | N/A | 3.0 μg/m3 (13) | 36.0 | |
| April 5, 2021, 3 a.m. | 8.8 ppb (9) | 4.0 ppb (4) | N/A | 5.0 ppb (5) | N/A | N/A | 38.0 ppb (36) | 0.17 ppb (3) | N/A | 2.8 μg/m3 (12) | 36.0 | |
| April 5, 2021, 2 a.m. | 10.2 ppb (10) | 5.4 ppb (6) | N/A | 5.0 ppb (5) | N/A | N/A | 39.0 ppb (37) | 0.19 ppb (3) | N/A | 2.8 μg/m3 (12) | 37.0 | |
| April 5, 2021, 1 a.m. | 11.1 ppb (11) | 6.2 ppb (6) | N/A | 5.0 ppb (5) | N/A | N/A | 40.0 ppb (38) | 0.23 ppb (3) | N/A | 3.0 μg/m3 (13) | 38.0 | |
| April 5, 2021, midnight | 13.4 ppb (13) | 7.0 ppb (7) | N/A | 6.0 ppb (6) | N/A | N/A | 37.0 ppb (35) | 0.26 ppb (4) | N/A | 3.0 μg/m3 (13) | 35.0 | |
| April 4, 2021, 11 p.m. | 13.3 ppb (13) | 6.9 ppb (7) | N/A | 6.0 ppb (6) | N/A | N/A | 36.0 ppb (34) | 0.26 ppb (4) | N/A | 3.2 μg/m3 (14) | 34.0 | |
| April 4, 2021, 10 p.m. | 10.9 ppb (11) | 5.5 ppb (6) | N/A | 5.0 ppb (5) | N/A | N/A | 37.0 ppb (35) | 0.23 ppb (3) | N/A | 3.3 μg/m3 (14) | 35.0 | |
| April 4, 2021, 9 p.m. | 14.5 ppb (14) | 7.5 ppb (8) | N/A | 7.0 ppb (7) | N/A | N/A | 34.0 ppb (32) | 0.25 ppb (3) | N/A | 3.4 μg/m3 (15) | 32.0 | |
| April 4, 2021, 8 p.m. | 14.2 ppb (14) | 8.1 ppb (8) | N/A | 6.0 ppb (6) | N/A | N/A | 34.0 ppb (32) | 0.25 ppb (3) | N/A | 3.4 μg/m3 (15) | 32.0 | |
| April 4, 2021, 7 p.m. | 12.6 ppb (12) | 7.1 ppb (7) | N/A | 6.0 ppb (6) | N/A | N/A | 36.0 ppb (34) | 0.23 ppb (3) | N/A | 3.1 μg/m3 (13) | 34.0 | |
| April 4, 2021, 6 p.m. | 12.0 ppb (12) | 6.5 ppb (7) | N/A | 7.0 ppb (7) | N/A | N/A | 35.0 ppb (33) | 0.21 ppb (3) | N/A | 2.7 μg/m3 (12) | 33.0 | |
| April 4, 2021, 5 p.m. | 10.6 ppb (10) | 5.3 ppb (5) | N/A | 5.0 ppb (5) | N/A | N/A | 32.0 ppb (30) | 0.21 ppb (3) | N/A | 2.7 μg/m3 (12) | 30.0 | |
| April 4, 2021, 4 p.m. | 13.4 ppb (13) | 7.0 ppb (7) | N/A | 6.0 ppb (6) | N/A | N/A | 28.0 ppb (26) | 0.23 ppb (3) | N/A | 2.9 μg/m3 (13) | 26.0 | |
| April 4, 2021, 3 p.m. | 20.4 ppb (20) | 9.8 ppb (10) | N/A | 11.0 ppb (11) | N/A | N/A | 18.0 ppb (17) | 0.24 ppb (3) | N/A | 4.2 μg/m3 (18) | 20.0 | |
| April 4, 2021, 2 p.m. | 30.8 ppb (30) | 16.7 ppb (16) | N/A | 14.0 ppb (14) | N/A | N/A | 2.0 ppb (2) | 0.35 ppb (4) | N/A | 7.8 μg/m3 (33) | 33.0 | |
| April 4, 2021, 1 p.m. | 18.0 ppb (17) | 6.4 ppb (7) | N/A | 12.0 ppb (12) | N/A | N/A | 1.0 ppb (1) | 0.24 ppb (3) | N/A | 8.8 μg/m3 (37) | 37.0 | |
| April 4, 2021, noon | 21.4 ppb (21) | 7.6 ppb (8) | N/A | 14.0 ppb (14) | N/A | N/A | 3.0 ppb (3) | 0.22 ppb (3) | N/A | 6.7 μg/m3 (28) | 28.0 | |
| April 4, 2021, 11 a.m. | 17.9 ppb (17) | 4.6 ppb (5) | N/A | 13.0 ppb (13) | N/A | N/A | 3.0 ppb (3) | 0.23 ppb (3) | N/A | 8.3 μg/m3 (35) | 35.0 | |
| April 4, 2021, 10 a.m. | 10.3 ppb (10) | 1.3 ppb (2) | N/A | 9.0 ppb (9) | N/A | N/A | 6.0 ppb (6) | 0.22 ppb (3) | N/A | 9.2 μg/m3 (39) | 39.0 | |
| April 4, 2021, 9 a.m. | 7.8 ppb (8) | 0.4 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | 9.0 ppb (9) | 0.2 ppb (3) | N/A | 8.9 μg/m3 (38) | 38.0 | |
| April 4, 2021, 8 a.m. | 13.0 ppb (13) | 1.7 ppb (2) | N/A | 11.0 ppb (11) | N/A | N/A | 9.0 ppb (9) | 0.23 ppb (3) | N/A | 7.1 μg/m3 (30) | 30.0 | |
| April 4, 2021, 7 a.m. | 11.7 ppb (12) | 0.4 ppb (1) | N/A | 11.0 ppb (11) | N/A | N/A | 11.0 ppb (11) | 0.21 ppb (3) | N/A | 5.1 μg/m3 (22) | 22.0 | |
| April 4, 2021, 6 a.m. | 18.5 ppb (18) | 4.7 ppb (5) | N/A | 14.0 ppb (14) | N/A | N/A | 15.0 ppb (14) | 0.34 ppb (4) | N/A | 3.8 μg/m3 (16) | 18.0 | |
| April 4, 2021, 5 a.m. | 18.2 ppb (18) | 7.0 ppb (7) | N/A | 11.0 ppb (11) | N/A | N/A | 22.0 ppb (21) | 0.32 ppb (4) | N/A | 3.8 μg/m3 (16) | 21.0 | |
| April 4, 2021, 4 a.m. | 13.3 ppb (13) | 4.7 ppb (5) | N/A | 9.0 ppb (9) | N/A | N/A | 26.0 ppb (25) | 0.29 ppb (4) | N/A | 3.5 μg/m3 (15) | 25.0 | |
| April 4, 2021, 3 a.m. | 17.5 ppb (17) | 7.8 ppb (8) | N/A | 10.0 ppb (10) | N/A | N/A | 27.0 ppb (25) | 0.28 ppb (4) | N/A | 3.3 μg/m3 (14) | 25.0 |