Albuquerque (Del Norte) NM, US: 35.1353, -106.584702
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| April 21, 2021, 5 p.m. | 8.0 ppb (8) | 3.0 ppb (3) | N/A | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 34.0 ppb (32) | 0.22 ppb (3) | 40.0 μg/m3 (38) | 7.9 μg/m3 (33) | 38.0 | |
| April 21, 2021, 4 p.m. | 9.0 ppb (9) | 4.0 ppb (4) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 30.0 ppb (28) | 0.22 ppb (3) | 43.6 μg/m3 (41) | 8.2 μg/m3 (35) | 41.0 | |
| April 21, 2021, 3 p.m. | 11.0 ppb (11) | 4.0 ppb (4) | N/A | 7.0 ppb (7) | N/A | 0.0 ppb (0) | 28.0 ppb (26) | 0.23 ppb (3) | 38.0 μg/m3 (36) | 7.3 μg/m3 (31) | 36.0 | |
| April 21, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | 27.0 ppb (25) | 0.24 ppb (3) | 40.0 μg/m3 (38) | 6.7 μg/m3 (28) | 38.0 | |
| April 21, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | 18.0 ppb (17) | 0.3 ppb (4) | 39.7 μg/m3 (37) | 6.9 μg/m3 (29) | 37.0 | |
| April 21, 2021, noon | 16.0 ppb (16) | 1.0 ppb (1) | N/A | 14.0 ppb (14) | N/A | 0.0 ppb (0) | 18.0 ppb (17) | 0.25 ppb (3) | 23.7 μg/m3 (22) | 5.7 μg/m3 (24) | 24.0 | |
| April 21, 2021, 11 a.m. | 7.0 ppb (7) | 1.0 ppb (1) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 26.0 ppb (25) | 0.19 ppb (3) | 22.0 μg/m3 (21) | 4.7 μg/m3 (20) | 25.0 | |
| April 21, 2021, 10 a.m. | 5.0 ppb (5) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 26.0 ppb (25) | 0.18 ppb (3) | 22.0 μg/m3 (21) | 4.4 μg/m3 (19) | 25.0 | |
| April 21, 2021, 9 a.m. | 4.0 ppb (4) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 27.0 ppb (25) | 0.18 ppb (3) | 24.3 μg/m3 (23) | 4.5 μg/m3 (19) | 25.0 | |
| April 21, 2021, 8 a.m. | 4.0 ppb (4) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 27.0 ppb (25) | 0.18 ppb (3) | 35.2 μg/m3 (33) | 5.6 μg/m3 (24) | 33.0 | |
| April 21, 2021, 7 a.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 28.0 ppb (26) | 0.18 ppb (3) | 41.3 μg/m3 (39) | 5.6 μg/m3 (24) | 39.0 | |
| April 21, 2021, 6 a.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 29.0 ppb (27) | 0.18 ppb (3) | 82.4 μg/m3 (65) | 8.4 μg/m3 (36) | 65.0 | |
| April 21, 2021, 5 a.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 28.0 ppb (26) | 0.19 ppb (3) | 111.4 μg/m3 (79) | 10.5 μg/m3 (44) | 79.0 | |
| April 21, 2021, 4 a.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 32.0 ppb (30) | 0.18 ppb (3) | 33.2 μg/m3 (31) | 4.9 μg/m3 (21) | 31.0 | |
| April 21, 2021, 3 a.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 32.0 ppb (30) | 0.17 ppb (3) | 25.5 μg/m3 (24) | 4.7 μg/m3 (20) | 30.0 | |
| April 21, 2021, 2 a.m. | 7.0 ppb (7) | 1.0 ppb (1) | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (2) | 31.0 ppb (29) | 0.22 ppb (3) | 40.0 μg/m3 (38) | 6.4 μg/m3 (27) | 38.0 | |
| April 21, 2021, 1 a.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 35.0 ppb (33) | 0.2 ppb (3) | 36.4 μg/m3 (34) | 5.8 μg/m3 (25) | 34.0 | |
| April 21, 2021, midnight | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 36.0 ppb (34) | 0.19 ppb (3) | 61.4 μg/m3 (55) | 6.9 μg/m3 (29) | 55.0 | |
| April 20, 2021, 11 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 36.0 ppb (34) | 0.19 ppb (3) | 40.2 μg/m3 (38) | 6.1 μg/m3 (26) | 38.0 | |
| April 20, 2021, 10 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 41.0 ppb (38) | 0.21 ppb (3) | 52.3 μg/m3 (49) | 7.7 μg/m3 (33) | 49.0 | |
| April 20, 2021, 9 p.m. | 2.0 ppb (2) | 1.0 ppb (1) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 47.0 ppb (44) | 0.18 ppb (3) | 55.9 μg/m3 (52) | 8.8 μg/m3 (37) | 52.0 | |
| April 20, 2021, 8 p.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (45) | 0.19 ppb (3) | 61.6 μg/m3 (55) | 9.4 μg/m3 (40) | 55.0 | |
| April 20, 2021, 7 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (45) | 0.18 ppb (3) | 66.9 μg/m3 (57) | 9.6 μg/m3 (40) | 57.0 | |
| April 20, 2021, 6 p.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 46.0 ppb (43) | 0.19 ppb (3) | 48.0 μg/m3 (45) | 8.5 μg/m3 (36) | 45.0 | |
| April 20, 2021, 5 p.m. | 5.0 ppb (5) | 2.0 ppb (2) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 45.0 ppb (42) | 0.2 ppb (3) | 43.4 μg/m3 (41) | 7.6 μg/m3 (32) | 42.0 | |
| April 20, 2021, 4 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 43.0 ppb (40) | 0.21 ppb (3) | 37.8 μg/m3 (35) | 6.8 μg/m3 (29) | 40.0 | |
| April 20, 2021, 3 p.m. | 13.0 ppb (13) | 6.0 ppb (6) | N/A | 8.0 ppb (8) | N/A | 1.0 ppb (2) | 25.0 ppb (24) | 0.28 ppb (4) | 33.4 μg/m3 (31) | 6.9 μg/m3 (29) | 31.0 | |
| April 20, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | 14.0 ppb (13) | 0.44 ppb (5) | 41.2 μg/m3 (39) | 8.9 μg/m3 (38) | 39.0 | |
| April 20, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | 15.0 ppb (14) | 0.39 ppb (5) | 25.9 μg/m3 (24) | 7.1 μg/m3 (30) | 30.0 | |
| April 20, 2021, noon | 19.0 ppb (18) | 1.0 ppb (1) | N/A | 18.0 ppb (17) | N/A | 0.0 ppb (0) | 17.0 ppb (16) | 0.32 ppb (4) | 21.9 μg/m3 (21) | 5.9 μg/m3 (25) | 25.0 | |
| April 20, 2021, 11 a.m. | 8.0 ppb (8) | 0.0 ppb (0) | N/A | 8.0 ppb (8) | N/A | 0.0 ppb (0) | 28.0 ppb (26) | 0.21 ppb (3) | 14.5 μg/m3 (14) | 4.8 μg/m3 (20) | 26.0 | |
| April 20, 2021, 10 a.m. | 6.0 ppb (6) | 0.0 ppb (0) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 32.0 ppb (30) | 0.18 ppb (3) | 13.0 μg/m3 (13) | 4.2 μg/m3 (18) | 30.0 | |
| April 20, 2021, 9 a.m. | 4.0 ppb (4) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 33.0 ppb (31) | 0.19 ppb (3) | 12.5 μg/m3 (12) | 4.1 μg/m3 (18) | 31.0 | |
| April 20, 2021, 8 a.m. | 4.0 ppb (4) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 34.0 ppb (32) | 0.18 ppb (3) | 13.6 μg/m3 (13) | 4.2 μg/m3 (18) | 32.0 | |
| April 20, 2021, 7 a.m. | 4.0 ppb (4) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 34.0 ppb (32) | 0.18 ppb (3) | 13.7 μg/m3 (13) | 4.4 μg/m3 (19) | 32.0 | |
| April 20, 2021, 6 a.m. | 6.0 ppb (6) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 34.0 ppb (32) | 0.2 ppb (3) | 23.8 μg/m3 (23) | 5.3 μg/m3 (23) | 32.0 | |
| April 20, 2021, 5 a.m. | 8.0 ppb (8) | 0.0 ppb (0) | N/A | 8.0 ppb (8) | N/A | 1.0 ppb (2) | 33.0 ppb (31) | 0.21 ppb (3) | 21.9 μg/m3 (21) | 5.0 μg/m3 (21) | 31.0 | |
| April 20, 2021, 4 a.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 41.0 ppb (38) | 0.19 ppb (3) | 12.7 μg/m3 (12) | 4.1 μg/m3 (18) | 38.0 | |
| April 20, 2021, 3 a.m. | 5.0 ppb (5) | 1.0 ppb (1) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 41.0 ppb (38) | 0.2 ppb (3) | 14.7 μg/m3 (14) | 4.2 μg/m3 (18) | 38.0 | |
| April 20, 2021, 2 a.m. | 8.0 ppb (8) | 1.0 ppb (1) | N/A | 7.0 ppb (7) | N/A | 1.0 ppb (2) | 39.0 ppb (37) | 0.24 ppb (3) | 19.0 μg/m3 (18) | 4.6 μg/m3 (20) | 37.0 | |
| April 20, 2021, 1 a.m. | 6.0 ppb (6) | 1.0 ppb (1) | N/A | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 45.0 ppb (42) | 0.21 ppb (3) | 15.6 μg/m3 (15) | 4.5 μg/m3 (19) | 42.0 | |
| April 20, 2021, midnight | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (45) | 0.2 ppb (3) | 14.7 μg/m3 (14) | 4.7 μg/m3 (20) | 45.0 | |
| April 19, 2021, 11 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (45) | 0.2 ppb (3) | 13.5 μg/m3 (13) | 4.6 μg/m3 (20) | 45.0 | |
| April 19, 2021, 10 p.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 49.0 ppb (46) | 0.2 ppb (3) | 14.0 μg/m3 (13) | 4.2 μg/m3 (18) | 46.0 | |
| April 19, 2021, 9 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 49.0 ppb (46) | 0.19 ppb (3) | 13.2 μg/m3 (13) | 4.2 μg/m3 (18) | 46.0 | |
| April 19, 2021, 8 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 47.0 ppb (44) | 0.19 ppb (3) | 13.7 μg/m3 (13) | 4.0 μg/m3 (17) | 44.0 | |
| April 19, 2021, 7 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 47.0 ppb (44) | 0.19 ppb (3) | 20.1 μg/m3 (19) | 4.9 μg/m3 (21) | 44.0 | |
| April 19, 2021, 6 p.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | 44.0 ppb (41) | 0.19 ppb (3) | 17.5 μg/m3 (17) | 5.8 μg/m3 (25) | 41.0 | |
| April 19, 2021, 5 p.m. | 5.0 ppb (5) | 2.0 ppb (2) | N/A | 4.0 ppb (4) | N/A | N/A | 41.0 ppb (38) | 0.2 ppb (3) | N/A | N/A | 38.0 | |
| April 19, 2021, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (32) | 0.24 ppb (3) | N/A | N/A | 32.0 | |
| April 19, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | 23.0 ppb (22) | 0.34 ppb (4) | 27.4 μg/m3 (26) | 10.1 μg/m3 (43) | 43.0 | |
| April 19, 2021, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | 17.0 ppb (16) | 0.37 ppb (5) | 23.9 μg/m3 (23) | 8.5 μg/m3 (36) | 36.0 | |
| April 19, 2021, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 24.0 ppb (23) | 0.26 ppb (4) | 13.3 μg/m3 (13) | 4.7 μg/m3 (20) | 23.0 | |
| April 19, 2021, noon | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 21.0 ppb (20) | 0.25 ppb (3) | 11.6 μg/m3 (11) | 4.8 μg/m3 (20) | 20.0 | |
| April 19, 2021, 11 a.m. | 21.0 ppb (20) | 1.0 ppb (1) | N/A | 19.0 ppb (18) | N/A | 0.0 ppb (0) | 12.0 ppb (12) | 0.27 ppb (4) | 16.2 μg/m3 (15) | 6.4 μg/m3 (27) | 27.0 | |
| April 19, 2021, 10 a.m. | 22.0 ppb (21) | 1.0 ppb (1) | N/A | 21.0 ppb (20) | N/A | 0.0 ppb (0) | 5.0 ppb (5) | 0.28 ppb (4) | 18.0 μg/m3 (17) | 7.2 μg/m3 (31) | 31.0 | |
| April 19, 2021, 9 a.m. | 15.0 ppb (15) | 0.0 ppb (0) | N/A | 14.0 ppb (14) | N/A | 0.0 ppb (0) | 14.0 ppb (13) | 0.26 ppb (4) | 20.1 μg/m3 (19) | 7.7 μg/m3 (33) | 33.0 | |
| April 19, 2021, 8 a.m. | 10.0 ppb (10) | 0.0 ppb (0) | N/A | 10.0 ppb (10) | N/A | 0.0 ppb (0) | 22.0 ppb (21) | 0.23 ppb (3) | 14.6 μg/m3 (14) | 6.1 μg/m3 (26) | 26.0 | |
| April 19, 2021, 7 a.m. | 10.0 ppb (10) | 0.0 ppb (0) | N/A | 10.0 ppb (10) | N/A | 0.0 ppb (0) | 22.0 ppb (21) | 0.23 ppb (3) | 13.1 μg/m3 (13) | 6.0 μg/m3 (25) | 25.0 | |
| April 19, 2021, 6 a.m. | 6.0 ppb (6) | 0.0 ppb (0) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 29.0 ppb (27) | 0.21 ppb (3) | 13.3 μg/m3 (13) | 6.0 μg/m3 (25) | 27.0 | |
| April 19, 2021, 5 a.m. | 7.0 ppb (7) | 0.0 ppb (0) | N/A | 7.0 ppb (7) | N/A | 0.0 ppb (0) | 30.0 ppb (28) | 0.22 ppb (3) | 16.5 μg/m3 (16) | 6.4 μg/m3 (27) | 28.0 | |
| April 19, 2021, 4 a.m. | 7.0 ppb (7) | 0.0 ppb (0) | N/A | 7.0 ppb (7) | N/A | 0.0 ppb (0) | 30.0 ppb (28) | 0.23 ppb (3) | 18.1 μg/m3 (17) | 6.2 μg/m3 (26) | 28.0 | |
| April 19, 2021, 3 a.m. | 7.0 ppb (7) | 0.0 ppb (0) | N/A | 7.0 ppb (7) | N/A | 0.0 ppb (0) | 33.0 ppb (31) | 0.23 ppb (3) | 16.5 μg/m3 (16) | 5.7 μg/m3 (24) | 31.0 | |
| April 19, 2021, 2 a.m. | 7.0 ppb (7) | 1.0 ppb (1) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 35.0 ppb (33) | 0.25 ppb (3) | 17.1 μg/m3 (16) | 5.3 μg/m3 (23) | 33.0 | |
| April 19, 2021, 1 a.m. | 5.0 ppb (5) | 1.0 ppb (1) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 39.0 ppb (37) | 0.22 ppb (3) | 14.4 μg/m3 (14) | 4.6 μg/m3 (20) | 37.0 | |
| April 19, 2021, midnight | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 44.0 ppb (41) | 0.19 ppb (3) | 12.1 μg/m3 (12) | 4.9 μg/m3 (21) | 41.0 | |
| April 18, 2021, 11 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 45.0 ppb (42) | 0.19 ppb (3) | 10.8 μg/m3 (10) | 4.7 μg/m3 (20) | 42.0 | |
| April 18, 2021, 10 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 43.0 ppb (40) | 0.18 ppb (3) | 11.9 μg/m3 (12) | 5.1 μg/m3 (22) | 40.0 | |
| April 18, 2021, 9 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 40.0 ppb (38) | 0.17 ppb (3) | 12.0 μg/m3 (12) | 5.4 μg/m3 (23) | 38.0 | |
| April 18, 2021, 8 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 37.0 ppb (35) | N/A | 11.5 μg/m3 (11) | 5.2 μg/m3 (22) | 35.0 | |
| April 18, 2021, 7 p.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 36.0 ppb (34) | N/A | 13.4 μg/m3 (13) | 5.8 μg/m3 (25) | 34.0 | |
| April 18, 2021, 6 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 4.0 ppb (6) | 35.0 ppb (33) | 0.19 ppb (3) | 13.7 μg/m3 (13) | 5.2 μg/m3 (22) | 33.0 | |
| April 18, 2021, 5 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | 34.0 ppb (32) | 0.18 ppb (3) | 11.8 μg/m3 (11) | 4.5 μg/m3 (19) | 32.0 | |
| April 18, 2021, 4 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | 31.0 ppb (29) | 0.18 ppb (3) | 11.5 μg/m3 (11) | 3.8 μg/m3 (16) | 29.0 | |
| April 18, 2021, 3 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 31.0 ppb (29) | 0.19 ppb (3) | 7.6 μg/m3 (8) | 3.3 μg/m3 (14) | 29.0 | |
| April 18, 2021, 2 p.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 29.0 ppb (27) | 0.19 ppb (3) | 9.1 μg/m3 (9) | 3.1 μg/m3 (13) | 27.0 | |
| April 18, 2021, 1 p.m. | 4.0 ppb (4) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | 0.17 ppb (3) | 7.8 μg/m3 (8) | 3.0 μg/m3 (13) | 13.0 | |
| April 18, 2021, noon | 4.0 ppb (4) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | 0.18 ppb (3) | 7.4 μg/m3 (7) | 2.9 μg/m3 (13) | 13.0 | |
| April 18, 2021, 11 a.m. | 4.0 ppb (4) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 22.0 ppb (21) | 0.18 ppb (3) | 8.3 μg/m3 (8) | 3.7 μg/m3 (16) | 21.0 | |
| April 18, 2021, 10 a.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 26.0 ppb (25) | 0.17 ppb (3) | 6.2 μg/m3 (6) | 3.0 μg/m3 (13) | 25.0 | |
| April 18, 2021, 9 a.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 27.0 ppb (25) | 0.17 ppb (3) | 6.7 μg/m3 (7) | 3.6 μg/m3 (16) | 25.0 | |
| April 18, 2021, 8 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 30.0 ppb (28) | 0.16 ppb (3) | 3.4 μg/m3 (4) | 1.6 μg/m3 (7) | 28.0 | |
| April 18, 2021, 7 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 30.0 ppb (28) | 0.16 ppb (3) | 4.0 μg/m3 (4) | 1.8 μg/m3 (8) | 28.0 | |
| April 18, 2021, 6 a.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 30.0 ppb (28) | 0.17 ppb (3) | 7.7 μg/m3 (8) | 2.9 μg/m3 (13) | 28.0 | |
| April 18, 2021, 5 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 30.0 ppb (28) | 0.16 ppb (3) | 6.2 μg/m3 (6) | 2.2 μg/m3 (10) | 28.0 | |
| April 18, 2021, 4 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 29.0 ppb (27) | 0.17 ppb (3) | 9.4 μg/m3 (9) | 2.9 μg/m3 (13) | 27.0 | |
| April 18, 2021, 3 a.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 30.0 ppb (28) | 0.17 ppb (3) | 9.0 μg/m3 (9) | 3.3 μg/m3 (14) | 28.0 | |
| April 18, 2021, 2 a.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 34.0 ppb (32) | 0.17 ppb (3) | 11.2 μg/m3 (11) | 3.5 μg/m3 (15) | 32.0 | |
| April 18, 2021, 1 a.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 34.0 ppb (32) | 0.16 ppb (3) | 16.2 μg/m3 (15) | 3.4 μg/m3 (15) | 32.0 | |
| April 18, 2021, midnight | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 35.0 ppb (33) | 0.16 ppb (3) | 14.9 μg/m3 (14) | 3.5 μg/m3 (15) | 33.0 | |
| April 17, 2021, 11 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 36.0 ppb (34) | 0.17 ppb (3) | 15.9 μg/m3 (15) | 3.6 μg/m3 (16) | 34.0 | |
| April 17, 2021, 10 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 38.0 ppb (36) | 0.16 ppb (3) | 20.0 μg/m3 (19) | 3.6 μg/m3 (16) | 36.0 | |
| April 17, 2021, 9 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 37.0 ppb (35) | 0.16 ppb (3) | 17.4 μg/m3 (17) | 3.3 μg/m3 (14) | 35.0 | |
| April 17, 2021, 8 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 36.0 ppb (34) | 0.16 ppb (3) | 16.2 μg/m3 (15) | 3.5 μg/m3 (15) | 34.0 | |
| April 17, 2021, 7 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 35.0 ppb (33) | 0.17 ppb (3) | 14.7 μg/m3 (14) | 3.7 μg/m3 (16) | 33.0 | |
| April 17, 2021, 6 p.m. | 2.0 ppb (2) | 1.0 ppb (1) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 33.0 ppb (31) | 0.17 ppb (3) | 16.4 μg/m3 (16) | 3.8 μg/m3 (16) | 31.0 | |
| April 17, 2021, 5 p.m. | 2.0 ppb (2) | 1.0 ppb (1) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 31.0 ppb (29) | 0.16 ppb (3) | 12.8 μg/m3 (12) | 3.6 μg/m3 (16) | 29.0 | |
| April 17, 2021, 4 p.m. | 2.0 ppb (2) | 1.0 ppb (1) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 29.0 ppb (27) | 0.17 ppb (3) | 13.3 μg/m3 (13) | 3.9 μg/m3 (17) | 27.0 | |
| April 17, 2021, 3 p.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 27.0 ppb (25) | 0.19 ppb (3) | 16.3 μg/m3 (16) | 4.9 μg/m3 (21) | 25.0 | |
| April 17, 2021, 2 p.m. | 5.0 ppb (5) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 24.0 ppb (23) | 0.2 ppb (3) | 18.8 μg/m3 (18) | 5.3 μg/m3 (23) | 23.0 | |
| April 17, 2021, 1 p.m. | 5.0 ppb (5) | 1.0 ppb (1) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 23.0 ppb (22) | 0.21 ppb (3) | 21.6 μg/m3 (20) | 5.6 μg/m3 (24) | 24.0 | |
| April 17, 2021, noon | 5.0 ppb (5) | 1.0 ppb (1) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 21.0 ppb (20) | 0.19 ppb (3) | 16.3 μg/m3 (16) | 4.6 μg/m3 (20) | 20.0 | |
| April 17, 2021, 11 a.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 23.0 ppb (22) | 0.19 ppb (3) | 14.2 μg/m3 (14) | 4.0 μg/m3 (17) | 22.0 | |
| April 17, 2021, 10 a.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 24.0 ppb (23) | 0.18 ppb (3) | 19.1 μg/m3 (18) | 3.8 μg/m3 (16) | 23.0 | |
| April 17, 2021, 9 a.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 25.0 ppb (24) | 0.18 ppb (3) | 21.8 μg/m3 (21) | 3.8 μg/m3 (16) | 24.0 | |
| April 17, 2021, 8 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 30.0 ppb (28) | 0.17 ppb (3) | 15.9 μg/m3 (15) | 3.9 μg/m3 (17) | 28.0 | |
| April 17, 2021, 7 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 31.0 ppb (29) | 0.17 ppb (3) | 12.1 μg/m3 (12) | 3.4 μg/m3 (15) | 29.0 | |
| April 17, 2021, 6 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 32.0 ppb (30) | 0.17 ppb (3) | 13.5 μg/m3 (13) | 3.1 μg/m3 (13) | 30.0 | |
| April 17, 2021, 5 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 33.0 ppb (31) | 0.17 ppb (3) | 13.0 μg/m3 (13) | 3.3 μg/m3 (14) | 31.0 | |
| April 17, 2021, 4 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 32.0 ppb (30) | 0.17 ppb (3) | 48.4 μg/m3 (45) | 4.1 μg/m3 (18) | 45.0 | |
| April 17, 2021, 3 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 33.0 ppb (31) | 0.18 ppb (3) | 58.2 μg/m3 (53) | 4.4 μg/m3 (19) | 53.0 | |
| April 17, 2021, 2 a.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 34.0 ppb (32) | 0.18 ppb (3) | 86.4 μg/m3 (67) | 5.5 μg/m3 (23) | 67.0 | |
| April 17, 2021, 1 a.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 40.0 ppb (38) | 0.18 ppb (3) | 46.2 μg/m3 (43) | 4.9 μg/m3 (21) | 43.0 | |
| April 17, 2021, midnight | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 51.0 ppb (48) | 0.17 ppb (3) | 15.4 μg/m3 (15) | 4.4 μg/m3 (19) | 48.0 | |
| April 16, 2021, 11 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 52.0 ppb (49) | 0.18 ppb (3) | 13.0 μg/m3 (13) | 3.9 μg/m3 (17) | 49.0 | |
| April 16, 2021, 10 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 52.0 ppb (49) | 0.18 ppb (3) | 12.4 μg/m3 (12) | 3.4 μg/m3 (15) | 49.0 | |
| April 16, 2021, 9 p.m. | 2.0 ppb (2) | 1.0 ppb (1) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 49.0 ppb (46) | 0.17 ppb (3) | 10.8 μg/m3 (10) | 3.2 μg/m3 (14) | 46.0 | |
| April 16, 2021, 8 p.m. | 2.0 ppb (2) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (45) | 0.18 ppb (3) | 11.6 μg/m3 (11) | 3.1 μg/m3 (13) | 45.0 | |
| April 16, 2021, 7 p.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 49.0 ppb (46) | 0.17 ppb (3) | 11.3 μg/m3 (11) | 2.9 μg/m3 (13) | 46.0 | |
| April 16, 2021, 6 p.m. | 2.0 ppb (2) | 1.0 ppb (1) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 47.0 ppb (44) | 0.18 ppb (3) | 11.4 μg/m3 (11) | 2.9 μg/m3 (13) | 44.0 | |
| April 16, 2021, 5 p.m. | 2.0 ppb (2) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 45.0 ppb (42) | 0.17 ppb (3) | 12.2 μg/m3 (12) | 3.1 μg/m3 (13) | 42.0 | |
| April 16, 2021, 4 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 44.0 ppb (41) | 0.17 ppb (3) | 15.6 μg/m3 (15) | 3.2 μg/m3 (14) | 41.0 | |
| April 16, 2021, 3 p.m. | 6.0 ppb (6) | 2.0 ppb (2) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 42.0 ppb (39) | 0.2 ppb (3) | 18.5 μg/m3 (18) | 3.8 μg/m3 (16) | 39.0 | |
| April 16, 2021, 2 p.m. | 9.0 ppb (9) | 3.0 ppb (3) | N/A | 7.0 ppb (7) | N/A | 1.0 ppb (2) | 37.0 ppb (35) | 0.22 ppb (3) | 21.1 μg/m3 (20) | 4.1 μg/m3 (18) | 35.0 | |
| April 16, 2021, 1 p.m. | 14.0 ppb (14) | 2.0 ppb (2) | N/A | 11.0 ppb (11) | N/A | 1.0 ppb (2) | 32.0 ppb (30) | 0.23 ppb (3) | 23.1 μg/m3 (22) | 4.3 μg/m3 (18) | 30.0 | |
| April 16, 2021, noon | 9.0 ppb (9) | 1.0 ppb (1) | N/A | 8.0 ppb (8) | N/A | 0.0 ppb (0) | 35.0 ppb (33) | 0.23 ppb (3) | 10.3 μg/m3 (10) | 3.1 μg/m3 (13) | 33.0 | |
| April 16, 2021, 11 a.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 43.0 ppb (40) | 0.17 ppb (3) | 10.0 μg/m3 (10) | 3.1 μg/m3 (13) | 40.0 | |
| April 16, 2021, 10 a.m. | 5.0 ppb (5) | 1.0 ppb (1) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 42.0 ppb (39) | 0.18 ppb (3) | 14.1 μg/m3 (14) | 3.5 μg/m3 (15) | 39.0 | |
| April 16, 2021, 9 a.m. | 5.0 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 40.0 ppb (38) | 0.17 ppb (3) | 20.0 μg/m3 (19) | 4.2 μg/m3 (18) | 38.0 | |
| April 16, 2021, 8 a.m. | 5.0 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 43.0 ppb (40) | 0.17 ppb (3) | 29.4 μg/m3 (28) | 5.2 μg/m3 (22) | 40.0 | |
| April 16, 2021, 7 a.m. | 4.0 ppb (4) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (2) | 42.0 ppb (39) | 0.17 ppb (3) | 45.2 μg/m3 (42) | 7.0 μg/m3 (30) | 42.0 | |
| April 16, 2021, 6 a.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 45.0 ppb (42) | 0.17 ppb (3) | 61.7 μg/m3 (55) | 8.5 μg/m3 (36) | 55.0 | |
| April 16, 2021, 5 a.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 47.0 ppb (44) | 0.17 ppb (3) | 80.1 μg/m3 (64) | 9.3 μg/m3 (39) | 64.0 | |
| April 16, 2021, 4 a.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 51.0 ppb (48) | 0.17 ppb (3) | 76.5 μg/m3 (62) | 9.8 μg/m3 (41) | 62.0 | |
| April 16, 2021, 3 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 54.0 ppb (50) | 0.18 ppb (3) | 33.0 μg/m3 (31) | 5.9 μg/m3 (25) | 50.0 | |
| April 16, 2021, 2 a.m. | 4.0 ppb (4) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 51.0 ppb (48) | 0.19 ppb (3) | 27.9 μg/m3 (26) | 5.2 μg/m3 (22) | 48.0 | |
| April 16, 2021, 1 a.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 51.0 ppb (48) | 0.18 ppb (3) | N/A | 6.1 μg/m3 (26) | 48.0 | |
| April 16, 2021, midnight | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 53.0 ppb (50) | 0.17 ppb (3) | 133.3 μg/m3 (90) | 10.5 μg/m3 (44) | 90.0 | |
| April 15, 2021, 11 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 51.0 ppb (48) | 0.18 ppb (3) | 121.5 μg/m3 (84) | 10.7 μg/m3 (45) | 84.0 | |
| April 15, 2021, 10 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 50.0 ppb (47) | 0.18 ppb (3) | 113.8 μg/m3 (81) | 9.8 μg/m3 (41) | 81.0 | |
| April 15, 2021, 9 p.m. | 5.0 ppb (5) | 2.0 ppb (2) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 46.0 ppb (43) | 0.19 ppb (3) | 40.3 μg/m3 (38) | 4.9 μg/m3 (21) | 43.0 | |
| April 15, 2021, 8 p.m. | 4.0 ppb (4) | 2.0 ppb (2) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 47.0 ppb (44) | 0.19 ppb (3) | 40.5 μg/m3 (38) | 5.2 μg/m3 (22) | 44.0 | |
| April 15, 2021, 7 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (45) | 0.19 ppb (3) | 33.0 μg/m3 (31) | 5.5 μg/m3 (23) | 45.0 | |
| April 15, 2021, 6 p.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 46.0 ppb (43) | 0.2 ppb (3) | 32.4 μg/m3 (30) | 6.5 μg/m3 (28) | 43.0 | |
| April 15, 2021, 5 p.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 40.0 ppb (38) | 0.21 ppb (3) | 28.5 μg/m3 (27) | 8.3 μg/m3 (35) | 38.0 | |
| April 15, 2021, 4 p.m. | 12.0 ppb (12) | 4.0 ppb (4) | N/A | 7.0 ppb (7) | N/A | 1.0 ppb (2) | 29.0 ppb (27) | 0.25 ppb (3) | 38.8 μg/m3 (36) | 13.1 μg/m3 (54) | 54.0 | |
| April 15, 2021, 3 p.m. | 14.0 ppb (14) | 4.0 ppb (4) | N/A | 10.0 ppb (10) | N/A | 0.0 ppb (0) | 22.0 ppb (21) | 0.28 ppb (4) | 64.4 μg/m3 (56) | 15.7 μg/m3 (59) | 59.0 | |
| April 15, 2021, 2 p.m. | 19.0 ppb (18) | 5.0 ppb (5) | N/A | 14.0 ppb (14) | N/A | 1.0 ppb (2) | 17.0 ppb (16) | 0.31 ppb (4) | 43.5 μg/m3 (41) | 15.4 μg/m3 (58) | 58.0 | |
| April 15, 2021, 1 p.m. | 14.0 ppb (14) | 2.0 ppb (2) | N/A | 12.0 ppb (12) | N/A | 1.0 ppb (2) | 17.0 ppb (16) | 0.3 ppb (4) | 35.9 μg/m3 (34) | 15.4 μg/m3 (58) | 58.0 | |
| April 15, 2021, noon | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | 21.0 ppb (20) | 0.24 ppb (3) | 37.8 μg/m3 (35) | 15.3 μg/m3 (58) | 58.0 | |
| April 15, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | 24.0 ppb (23) | 0.22 ppb (3) | 35.7 μg/m3 (34) | 14.5 μg/m3 (57) | 57.0 | |
| April 15, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | 26.0 ppb (25) | 0.21 ppb (3) | 32.2 μg/m3 (30) | 13.7 μg/m3 (55) | 55.0 | |
| April 15, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 26.0 ppb (25) | 0.22 ppb (3) | 36.1 μg/m3 (34) | 13.4 μg/m3 (54) | 54.0 | |
| April 15, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 27.0 ppb (25) | 0.21 ppb (3) | 30.9 μg/m3 (29) | 12.5 μg/m3 (52) | 52.0 | |
| April 15, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 29.0 ppb (27) | 0.21 ppb (3) | 44.6 μg/m3 (42) | 12.6 μg/m3 (53) | 53.0 | |
| April 15, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 31.0 ppb (29) | 0.21 ppb (3) | 93.1 μg/m3 (70) | 16.0 μg/m3 (60) | 70.0 | |
| April 15, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 35.0 ppb (33) | 0.21 ppb (3) | 54.8 μg/m3 (51) | 11.5 μg/m3 (48) | 51.0 | |
| April 15, 2021, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 39.0 ppb (37) | 0.2 ppb (3) | 41.1 μg/m3 (39) | 9.7 μg/m3 (41) | 41.0 | |
| April 15, 2021, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 41.0 ppb (38) | 0.2 ppb (3) | 47.1 μg/m3 (44) | 11.2 μg/m3 (47) | 47.0 | |
| April 15, 2021, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | 41.0 ppb (38) | 0.2 ppb (3) | 65.2 μg/m3 (57) | 12.4 μg/m3 (52) | 57.0 | |
| April 15, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | 39.0 ppb (37) | 0.2 ppb (3) | 69.5 μg/m3 (59) | 10.9 μg/m3 (46) | 59.0 | |
| April 15, 2021, midnight | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | 39.0 ppb (37) | 0.2 ppb (3) | 62.6 μg/m3 (55) | 10.5 μg/m3 (44) | 55.0 | |
| April 14, 2021, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | 44.0 ppb (41) | 0.2 ppb (3) | 28.0 μg/m3 (26) | 6.7 μg/m3 (28) | 41.0 | |
| April 14, 2021, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | 47.0 ppb (44) | 0.21 ppb (3) | 25.5 μg/m3 (24) | 6.7 μg/m3 (28) | 44.0 | |
| April 14, 2021, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | 48.0 ppb (45) | 0.21 ppb (3) | 30.0 μg/m3 (28) | 7.7 μg/m3 (33) | 45.0 | |
| April 14, 2021, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | 46.0 ppb (43) | 0.2 ppb (3) | 33.0 μg/m3 (31) | 8.3 μg/m3 (35) | 43.0 | |
| April 14, 2021, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | 46.0 ppb (43) | 0.2 ppb (3) | 33.0 μg/m3 (31) | 10.0 μg/m3 (42) | 43.0 | |
| April 14, 2021, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (2) | 43.0 ppb (40) | 0.21 ppb (3) | 33.8 μg/m3 (32) | 10.6 μg/m3 (45) | 45.0 |