Baltimore (Old Town) MD, US: 39.2981, -76.604698
Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Jan. 20, 2021, 6 p.m. | 6.8 ppb (7) | 2.4 ppb (3) | N/A | 4.0 ppb (4) | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 20, 2021, 5 p.m. | 6.6 ppb (7) | 2.4 ppb (3) | N/A | 4.0 ppb (4) | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 20, 2021, 4 p.m. | 6.8 ppb (7) | 2.7 ppb (3) | N/A | 4.0 ppb (4) | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 20, 2021, 3 p.m. | 7.6 ppb (8) | 3.0 ppb (3) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 20, 2021, 2 p.m. | 8.2 ppb (8) | 3.2 ppb (4) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 8.0 | |
Jan. 20, 2021, 1 p.m. | 7.7 ppb (8) | 2.0 ppb (2) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
Jan. 20, 2021, noon | 9.2 ppb (9) | 2.3 ppb (3) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 20, 2021, 11 a.m. | 10.2 ppb (10) | 2.5 ppb (3) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 20, 2021, 10 a.m. | 19.6 ppb (19) | 1.7 ppb (2) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 20, 2021, 9 a.m. | 22.8 ppb (22) | 2.0 ppb (2) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (30) | 30.0 | |
Jan. 20, 2021, 8 a.m. | 72.3 ppb (71) | 35.4 ppb (34) | N/A | 37.0 ppb (35) | N/A | N/A | N/A | N/A | N/A | 8.0 μg/m3 (34) | 71.0 | |
Jan. 20, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
Jan. 20, 2021, 6 a.m. | 85.0 ppb (85) | 45.2 ppb (43) | N/A | 40.0 ppb (38) | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (30) | 85.0 | |
Jan. 20, 2021, 5 a.m. | 116.7 ppb (104) | 73.5 ppb (72) | N/A | 43.0 ppb (41) | N/A | N/A | N/A | N/A | N/A | 8.0 μg/m3 (34) | 104.0 | |
Jan. 20, 2021, 4 a.m. | 99.7 ppb (100) | 56.3 ppb (54) | N/A | 43.0 ppb (41) | N/A | N/A | N/A | N/A | N/A | 9.0 μg/m3 (38) | 100.0 | |
Jan. 20, 2021, 3 a.m. | 46.5 ppb (44) | 12.2 ppb (12) | N/A | 34.0 ppb (33) | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (30) | 44.0 | |
Jan. 20, 2021, 2 a.m. | 65.2 ppb (63) | 29.9 ppb (29) | N/A | 35.0 ppb (34) | N/A | N/A | N/A | N/A | N/A | 9.0 μg/m3 (38) | 63.0 | |
Jan. 20, 2021, 1 a.m. | 34.7 ppb (33) | 5.4 ppb (6) | N/A | 29.0 ppb (28) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 33.0 | |
Jan. 20, 2021, midnight | 32.8 ppb (31) | 5.1 ppb (5) | N/A | 28.0 ppb (27) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 31.0 | |
Jan. 19, 2021, 11 p.m. | 26.3 ppb (25) | 3.6 ppb (4) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 25.0 | |
Jan. 19, 2021, 10 p.m. | 12.6 ppb (12) | 1.3 ppb (2) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 12.0 | |
Jan. 19, 2021, 9 p.m. | 7.6 ppb (8) | 1.5 ppb (2) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
Jan. 19, 2021, 8 p.m. | 6.6 ppb (7) | 1.9 ppb (2) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
Jan. 19, 2021, 7 p.m. | 9.5 ppb (9) | 3.7 ppb (4) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
Jan. 19, 2021, 6 p.m. | 8.4 ppb (8) | 3.1 ppb (3) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
Jan. 19, 2021, 5 p.m. | 16.6 ppb (16) | 5.7 ppb (6) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 16.0 | |
Jan. 19, 2021, 4 p.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 | |
Jan. 19, 2021, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 19, 2021, 2 p.m. | 38.7 ppb (37) | 13.9 ppb (14) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | 8.0 μg/m3 (34) | 37.0 | |
Jan. 19, 2021, 1 p.m. | 32.7 ppb (31) | 9.9 ppb (10) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (30) | 31.0 | |
Jan. 19, 2021, noon | 30.7 ppb (29) | 7.7 ppb (8) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 29.0 | |
Jan. 19, 2021, 11 a.m. | 31.3 ppb (30) | 7.3 ppb (7) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 30.0 | |
Jan. 19, 2021, 10 a.m. | 18.2 ppb (18) | 2.4 ppb (3) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 19, 2021, 9 a.m. | 14.4 ppb (14) | 1.0 ppb (1) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 19, 2021, 8 a.m. | 10.7 ppb (11) | 1.0 ppb (1) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (30) | 30.0 | |
Jan. 19, 2021, 7 a.m. | 10.0 ppb (10) | 1.1 ppb (2) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 19, 2021, 6 a.m. | 9.6 ppb (10) | 0.9 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 19, 2021, 5 a.m. | 10.1 ppb (10) | 1.0 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 10.0 | |
Jan. 19, 2021, 4 a.m. | 11.1 ppb (11) | 1.0 ppb (1) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 19, 2021, 3 a.m. | 13.5 ppb (13) | 1.5 ppb (2) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 19, 2021, 2 a.m. | 15.8 ppb (15) | 1.7 ppb (2) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 15.0 | |
Jan. 19, 2021, 1 a.m. | 14.4 ppb (14) | 1.3 ppb (2) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 14.0 | |
Jan. 19, 2021, midnight | 10.8 ppb (11) | 0.9 ppb (1) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 11.0 | |
Jan. 18, 2021, 11 p.m. | 12.1 ppb (12) | 1.5 ppb (2) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 12.0 | |
Jan. 18, 2021, 10 p.m. | 9.2 ppb (9) | 1.1 ppb (2) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
Jan. 18, 2021, 9 p.m. | 7.9 ppb (8) | 1.9 ppb (2) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | -1.0 μg/m3 (0) | 8.0 | |
Jan. 18, 2021, 8 p.m. | 6.5 ppb (7) | 2.1 ppb (2) | N/A | 4.0 ppb (4) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 7.0 | |
Jan. 18, 2021, 7 p.m. | 7.4 ppb (7) | 3.1 ppb (3) | N/A | 4.0 ppb (4) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
Jan. 18, 2021, 6 p.m. | 7.0 ppb (7) | 2.5 ppb (3) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 7.0 | |
Jan. 18, 2021, 5 p.m. | 6.6 ppb (7) | 2.7 ppb (3) | N/A | 4.0 ppb (4) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 7.0 | |
Jan. 18, 2021, 4 p.m. | 6.1 ppb (6) | 2.9 ppb (3) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 6.0 | |
Jan. 18, 2021, 3 p.m. | 8.5 ppb (9) | 3.0 ppb (3) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 9.0 | |
Jan. 18, 2021, 2 p.m. | 14.7 ppb (14) | 4.2 ppb (4) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 14.0 | |
Jan. 18, 2021, 1 p.m. | 25.4 ppb (24) | 7.0 ppb (7) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 24.0 | |
Jan. 18, 2021, noon | 22.9 ppb (22) | 5.1 ppb (5) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 22.0 | |
Jan. 18, 2021, 11 a.m. | 19.4 ppb (19) | 2.7 ppb (3) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 19.0 | |
Jan. 18, 2021, 10 a.m. | 16.7 ppb (16) | 1.7 ppb (2) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 18, 2021, 9 a.m. | 15.0 ppb (15) | 1.5 ppb (2) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 18, 2021, 8 a.m. | 16.0 ppb (16) | 1.3 ppb (2) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 18, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 μg/m3 (34) | 34.0 | |
Jan. 18, 2021, 6 a.m. | 16.7 ppb (16) | 1.6 ppb (2) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (30) | 30.0 | |
Jan. 18, 2021, 5 a.m. | 16.9 ppb (16) | 1.6 ppb (2) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (30) | 30.0 | |
Jan. 18, 2021, 4 a.m. | 17.8 ppb (17) | 1.9 ppb (2) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (30) | 30.0 | |
Jan. 18, 2021, 3 a.m. | 19.6 ppb (19) | 3.7 ppb (4) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 18, 2021, 2 a.m. | 14.5 ppb (14) | 1.8 ppb (2) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 18, 2021, 1 a.m. | 16.8 ppb (16) | 2.3 ppb (3) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 16.0 | |
Jan. 18, 2021, midnight | 20.9 ppb (20) | 3.4 ppb (4) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 20.0 | |
Jan. 17, 2021, 11 p.m. | 20.0 ppb (19) | 3.4 ppb (4) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 19.0 | |
Jan. 17, 2021, 10 p.m. | 13.0 ppb (13) | 1.8 ppb (2) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
Jan. 17, 2021, 9 p.m. | 9.1 ppb (9) | 2.0 ppb (2) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
Jan. 17, 2021, 8 p.m. | 8.2 ppb (8) | 1.7 ppb (2) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
Jan. 17, 2021, 7 p.m. | 6.0 ppb (6) | 1.6 ppb (2) | N/A | 4.0 ppb (4) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 6.0 | |
Jan. 17, 2021, 6 p.m. | 5.4 ppb (6) | 1.6 ppb (2) | N/A | 4.0 ppb (4) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 6.0 | |
Jan. 17, 2021, 5 p.m. | 5.6 ppb (6) | 2.1 ppb (2) | N/A | 4.0 ppb (4) | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 6.0 | |
Jan. 17, 2021, 4 p.m. | 6.4 ppb (7) | 2.7 ppb (3) | N/A | 4.0 ppb (4) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 7.0 | |
Jan. 17, 2021, 3 p.m. | 7.7 ppb (8) | 3.0 ppb (3) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 8.0 | |
Jan. 17, 2021, 2 p.m. | 7.9 ppb (8) | 2.3 ppb (3) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
Jan. 17, 2021, 1 p.m. | 13.2 ppb (13) | 4.1 ppb (4) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 17, 2021, noon | 10.2 ppb (10) | 1.8 ppb (2) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 17, 2021, 11 a.m. | 13.4 ppb (13) | 2.6 ppb (3) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 13.0 | |
Jan. 17, 2021, 10 a.m. | 10.1 ppb (10) | 1.1 ppb (2) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 10.0 | |
Jan. 17, 2021, 9 a.m. | 10.4 ppb (10) | 1.0 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 17, 2021, 8 a.m. | 8.8 ppb (9) | 0.6 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 17, 2021, 7 a.m. | 6.8 ppb (7) | 0.7 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 17, 2021, 6 a.m. | 8.0 ppb (8) | 0.9 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 17, 2021, 5 a.m. | 8.2 ppb (8) | 0.8 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
Jan. 17, 2021, 4 a.m. | 8.5 ppb (9) | 1.0 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
Jan. 17, 2021, 3 a.m. | 8.7 ppb (9) | 0.8 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 9.0 | |
Jan. 17, 2021, 2 a.m. | 8.0 ppb (8) | 0.7 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
Jan. 17, 2021, 1 a.m. | 8.3 ppb (8) | 0.7 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 17, 2021, midnight | 9.9 ppb (10) | 1.2 ppb (2) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 16, 2021, 11 p.m. | 12.2 ppb (12) | 1.5 ppb (2) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (30) | 30.0 | |
Jan. 16, 2021, 10 p.m. | 8.8 ppb (9) | 0.8 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 16, 2021, 9 p.m. | 5.8 ppb (6) | 0.7 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 16, 2021, 8 p.m. | 6.1 ppb (6) | 1.0 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
Jan. 16, 2021, 7 p.m. | 5.7 ppb (6) | 1.3 ppb (2) | N/A | 4.0 ppb (4) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
Jan. 16, 2021, 6 p.m. | 6.8 ppb (7) | 2.2 ppb (3) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
Jan. 16, 2021, 5 p.m. | 7.6 ppb (8) | 2.7 ppb (3) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 16, 2021, 4 p.m. | 7.2 ppb (7) | 2.5 ppb (3) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
Jan. 16, 2021, 3 p.m. | 6.7 ppb (7) | 1.7 ppb (2) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 16, 2021, 2 p.m. | 10.9 ppb (11) | 3.2 ppb (4) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 16, 2021, 1 p.m. | 15.9 ppb (15) | 3.4 ppb (4) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 16, 2021, noon | 14.4 ppb (14) | 1.9 ppb (2) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 14.0 | |
Jan. 16, 2021, 11 a.m. | 13.3 ppb (13) | 1.1 ppb (2) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 16, 2021, 10 a.m. | 12.1 ppb (12) | 0.5 ppb (1) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 16, 2021, 9 a.m. | 12.7 ppb (12) | 0.5 ppb (1) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (9) | 12.0 | |
Jan. 16, 2021, 8 a.m. | 8.9 ppb (9) | 0.5 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (30) | 30.0 | |
Jan. 16, 2021, 7 a.m. | 18.3 ppb (18) | 1.0 ppb (1) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 16, 2021, 6 a.m. | 21.7 ppb (21) | 2.0 ppb (2) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 16, 2021, 5 a.m. | 19.0 ppb (18) | 2.4 ppb (3) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 16, 2021, 4 a.m. | 16.8 ppb (16) | 2.7 ppb (3) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
Jan. 16, 2021, 3 a.m. | 19.3 ppb (19) | 3.2 ppb (4) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
Jan. 16, 2021, 2 a.m. | 25.3 ppb (24) | 3.6 ppb (4) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 16, 2021, 1 a.m. | 28.3 ppb (27) | 4.1 ppb (4) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 16, 2021, midnight | 38.4 ppb (37) | 5.5 ppb (6) | N/A | 33.0 ppb (32) | N/A | N/A | N/A | N/A | N/A | 14.0 μg/m3 (55) | 55.0 | |
Jan. 15, 2021, 11 p.m. | 27.5 ppb (26) | 3.4 ppb (4) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
Jan. 15, 2021, 10 p.m. | 24.5 ppb (24) | 3.9 ppb (4) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 15, 2021, 9 p.m. | 36.4 ppb (35) | 6.5 ppb (7) | N/A | 30.0 ppb (29) | N/A | N/A | N/A | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
Jan. 15, 2021, 8 p.m. | 33.3 ppb (32) | 7.4 ppb (7) | N/A | 26.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | 15.0 μg/m3 (58) | 58.0 | |
Jan. 15, 2021, 7 p.m. | 30.3 ppb (29) | 7.8 ppb (8) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | N/A | N/A | 18.0 μg/m3 (64) | 64.0 | |
Jan. 15, 2021, 6 p.m. | 22.2 ppb (21) | 6.5 ppb (7) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | 18.0 μg/m3 (64) | 64.0 | |
Jan. 15, 2021, 5 p.m. | 20.8 ppb (20) | 7.6 ppb (8) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | 14.0 μg/m3 (55) | 55.0 | |
Jan. 15, 2021, 4 p.m. | 23.9 ppb (23) | 9.1 ppb (9) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | 15.0 μg/m3 (58) | 58.0 | |
Jan. 15, 2021, 3 p.m. | 31.7 ppb (30) | 11.6 ppb (11) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | 17.0 μg/m3 (62) | 62.0 | |
Jan. 15, 2021, 2 p.m. | 44.5 ppb (42) | 20.8 ppb (20) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | 27.0 μg/m3 (83) | 83.0 | |
Jan. 15, 2021, 1 p.m. | 50.3 ppb (48) | 21.8 ppb (21) | N/A | 29.0 ppb (28) | N/A | N/A | N/A | N/A | N/A | 24.0 μg/m3 (77) | 77.0 | |
Jan. 15, 2021, noon | 46.6 ppb (44) | 16.9 ppb (16) | N/A | 30.0 ppb (29) | N/A | N/A | N/A | N/A | N/A | 26.0 μg/m3 (81) | 81.0 | |
Jan. 15, 2021, 11 a.m. | 43.2 ppb (41) | 13.4 ppb (13) | N/A | 30.0 ppb (29) | N/A | N/A | N/A | N/A | N/A | 27.0 μg/m3 (83) | 83.0 | |
Jan. 15, 2021, 10 a.m. | 43.3 ppb (41) | 12.1 ppb (12) | N/A | 31.0 ppb (30) | N/A | N/A | N/A | N/A | N/A | 27.0 μg/m3 (83) | 83.0 | |
Jan. 15, 2021, 9 a.m. | 46.3 ppb (44) | 12.9 ppb (13) | N/A | 33.0 ppb (32) | N/A | N/A | N/A | N/A | N/A | 29.0 μg/m3 (87) | 87.0 | |
Jan. 15, 2021, 8 a.m. | 52.1 ppb (50) | 17.9 ppb (17) | N/A | 34.0 ppb (33) | N/A | N/A | N/A | N/A | N/A | 24.0 μg/m3 (77) | 77.0 | |
Jan. 15, 2021, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 μg/m3 (70) | 70.0 | |
Jan. 15, 2021, 6 a.m. | 149.5 ppb (111) | 110.2 ppb (103) | N/A | 39.0 ppb (37) | N/A | N/A | N/A | N/A | N/A | 23.0 μg/m3 (74) | 111.0 | |
Jan. 15, 2021, 5 a.m. | 108.5 ppb (103) | 69.3 ppb (68) | N/A | 39.0 ppb (37) | N/A | N/A | N/A | N/A | N/A | 20.0 μg/m3 (68) | 103.0 | |
Jan. 15, 2021, 4 a.m. | 142.8 ppb (109) | 101.4 ppb (102) | N/A | 41.0 ppb (39) | N/A | N/A | N/A | N/A | N/A | 24.0 μg/m3 (77) | 109.0 | |
Jan. 15, 2021, 3 a.m. | 135.4 ppb (108) | 93.1 ppb (93) | N/A | 42.0 ppb (40) | N/A | N/A | N/A | N/A | N/A | 33.0 μg/m3 (95) | 108.0 | |
Jan. 15, 2021, 2 a.m. | 126.0 ppb (106) | 81.8 ppb (81) | N/A | 44.0 ppb (42) | N/A | N/A | N/A | N/A | N/A | 23.0 μg/m3 (74) | 106.0 | |
Jan. 15, 2021, 1 a.m. | 138.7 ppb (109) | 93.5 ppb (94) | N/A | 45.0 ppb (43) | N/A | N/A | N/A | N/A | N/A | 27.0 μg/m3 (83) | 109.0 | |
Jan. 15, 2021, midnight | 101.6 ppb (102) | 55.9 ppb (54) | N/A | 46.0 ppb (44) | N/A | N/A | N/A | N/A | N/A | 23.0 μg/m3 (74) | 102.0 | |
Jan. 14, 2021, 11 p.m. | 73.7 ppb (72) | 28.6 ppb (27) | N/A | 45.0 ppb (43) | N/A | N/A | N/A | N/A | N/A | 23.0 μg/m3 (74) | 74.0 | |
Jan. 14, 2021, 10 p.m. | 65.6 ppb (64) | 24.2 ppb (23) | N/A | 41.0 ppb (39) | N/A | N/A | N/A | N/A | N/A | 19.0 μg/m3 (66) | 66.0 | |
Jan. 14, 2021, 9 p.m. | 55.9 ppb (54) | 19.2 ppb (19) | N/A | 37.0 ppb (35) | N/A | N/A | N/A | N/A | N/A | 24.0 μg/m3 (77) | 77.0 | |
Jan. 14, 2021, 8 p.m. | 53.7 ppb (51) | 22.4 ppb (22) | N/A | 31.0 ppb (30) | N/A | N/A | N/A | N/A | N/A | 20.0 μg/m3 (68) | 68.0 | |
Jan. 14, 2021, 7 p.m. | 16.5 ppb (16) | 5.3 ppb (5) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
Jan. 14, 2021, 6 p.m. | 13.4 ppb (13) | 4.6 ppb (5) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 14, 2021, 5 p.m. | 14.3 ppb (14) | 5.4 ppb (6) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 14, 2021, 4 p.m. | 20.3 ppb (20) | 6.4 ppb (7) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 20.0 | |
Jan. 14, 2021, 3 p.m. | 50.2 ppb (48) | 22.5 ppb (22) | N/A | 28.0 ppb (27) | N/A | N/A | N/A | N/A | N/A | 17.0 μg/m3 (62) | 62.0 | |
Jan. 14, 2021, 2 p.m. | 87.5 ppb (87) | 55.5 ppb (53) | N/A | 32.0 ppb (31) | N/A | N/A | N/A | N/A | N/A | 21.0 μg/m3 (70) | 87.0 | |
Jan. 14, 2021, 1 p.m. | 96.3 ppb (97) | 65.4 ppb (64) | N/A | 31.0 ppb (30) | N/A | N/A | N/A | N/A | N/A | 30.0 μg/m3 (89) | 97.0 | |
Jan. 14, 2021, noon | 102.1 ppb (102) | 70.6 ppb (69) | N/A | 31.0 ppb (30) | N/A | N/A | N/A | N/A | N/A | 25.0 μg/m3 (79) | 102.0 | |
Jan. 14, 2021, 11 a.m. | 159.5 ppb (113) | 124.6 ppb (106) | N/A | 35.0 ppb (34) | N/A | N/A | N/A | N/A | N/A | 26.0 μg/m3 (81) | 113.0 | |
Jan. 14, 2021, 10 a.m. | 162.0 ppb (113) | 125.2 ppb (106) | N/A | 37.0 ppb (35) | N/A | N/A | N/A | N/A | N/A | 19.0 μg/m3 (66) | 113.0 | |
Jan. 14, 2021, 9 a.m. | 192.9 ppb (119) | 154.4 ppb (112) | N/A | 39.0 ppb (37) | N/A | N/A | N/A | N/A | N/A | 28.0 μg/m3 (85) | 119.0 | |
Jan. 14, 2021, 8 a.m. | 176.1 ppb (116) | 138.3 ppb (109) | N/A | 38.0 ppb (36) | N/A | N/A | N/A | N/A | N/A | 25.0 μg/m3 (79) | 116.0 | |
Jan. 14, 2021, 7 a.m. | 164.5 ppb (114) | 125.9 ppb (106) | N/A | 39.0 ppb (37) | N/A | N/A | N/A | N/A | N/A | 28.0 μg/m3 (85) | 114.0 | |
Jan. 14, 2021, 6 a.m. | 185.4 ppb (117) | 144.4 ppb (110) | N/A | 41.0 ppb (39) | N/A | N/A | N/A | N/A | N/A | 27.0 μg/m3 (83) | 117.0 | |
Jan. 14, 2021, 5 a.m. | 144.5 ppb (110) | 107.9 ppb (103) | N/A | 37.0 ppb (35) | N/A | N/A | N/A | N/A | N/A | 30.0 μg/m3 (89) | 110.0 | |
Jan. 14, 2021, 4 a.m. | 140.3 ppb (109) | 101.8 ppb (102) | N/A | 38.0 ppb (36) | N/A | N/A | N/A | N/A | N/A | 30.0 μg/m3 (89) | 109.0 | |
Jan. 14, 2021, 3 a.m. | 100.4 ppb (101) | 60.3 ppb (58) | N/A | 40.0 ppb (38) | N/A | N/A | N/A | N/A | N/A | 23.0 μg/m3 (74) | 101.0 | |
Jan. 14, 2021, 2 a.m. | 61.8 ppb (60) | 24.1 ppb (23) | N/A | 38.0 ppb (36) | N/A | N/A | N/A | N/A | N/A | 20.0 μg/m3 (68) | 68.0 | |
Jan. 14, 2021, 1 a.m. | 37.6 ppb (36) | 6.9 ppb (7) | N/A | 31.0 ppb (30) | N/A | N/A | N/A | N/A | N/A | 16.0 μg/m3 (60) | 60.0 | |
Jan. 14, 2021, midnight | 32.0 ppb (31) | 6.4 ppb (7) | N/A | 26.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | 17.0 μg/m3 (62) | 62.0 | |
Jan. 13, 2021, 11 p.m. | 26.2 ppb (25) | 4.5 ppb (5) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | N/A | N/A | 15.0 μg/m3 (58) | 58.0 | |
Jan. 13, 2021, 10 p.m. | 39.8 ppb (38) | 9.0 ppb (9) | N/A | 31.0 ppb (30) | N/A | N/A | N/A | N/A | N/A | 14.0 μg/m3 (55) | 55.0 | |
Jan. 13, 2021, 9 p.m. | 23.2 ppb (22) | 4.7 ppb (5) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 13, 2021, 8 p.m. | 27.5 ppb (26) | 9.2 ppb (9) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (30) | 30.0 | |
Jan. 13, 2021, 7 p.m. | 30.3 ppb (29) | 11.3 ppb (11) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | 9.0 μg/m3 (38) | 38.0 |