Berkeley (No. 2) CA, US: 37.864767, -122.302741
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 22, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (12) | 12.0 | |
| Jan. 22, 2019, 9 a.m. | 15.3 ppb (14) | 3.3 ppb (3) | N/A | 12.0 ppb (11) | N/A | N/A | 17.0 ppb (13) | 0.34 ppb (4) | N/A | 3.0 μg/m3 (12) | 14.0 | |
| Jan. 22, 2019, 8 a.m. | 14.2 ppb (13) | 2.2 ppb (2) | N/A | 12.0 ppb (11) | N/A | N/A | 17.0 ppb (13) | 0.35 ppb (4) | N/A | 3.0 μg/m3 (12) | 13.0 | |
| Jan. 22, 2019, 7 a.m. | 7.1 ppb (7) | 1.2 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | 22.0 ppb (17) | 0.28 ppb (3) | N/A | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 22, 2019, 6 a.m. | 9.3 ppb (9) | 1.5 ppb (1) | N/A | 8.0 ppb (7) | N/A | N/A | 21.0 ppb (16) | 0.32 ppb (4) | N/A | 2.0 μg/m3 (8) | 16.0 | |
| Jan. 22, 2019, 5 a.m. | 7.2 ppb (7) | 0.4 ppb (0) | N/A | 7.0 ppb (6) | N/A | N/A | 22.0 ppb (17) | 0.33 ppb (4) | N/A | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 22, 2019, 4 a.m. | 29.9 ppb (28) | 8.2 ppb (8) | N/A | 22.0 ppb (20) | N/A | N/A | 11.0 ppb (8) | 0.58 ppb (6) | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 22, 2019, 3 a.m. | 33.0 ppb (31) | 9.1 ppb (8) | N/A | 24.0 ppb (22) | N/A | N/A | 11.0 ppb (8) | 0.58 ppb (6) | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 22, 2019, 2 a.m. | 28.3 ppb (26) | 11.4 ppb (11) | N/A | 17.0 ppb (16) | N/A | N/A | 20.0 ppb (15) | 0.55 ppb (6) | N/A | 5.0 μg/m3 (21) | 26.0 | |
| Jan. 22, 2019, 1 a.m. | 31.6 ppb (29) | 14.3 ppb (13) | N/A | 17.0 ppb (16) | N/A | N/A | 22.0 ppb (17) | 0.52 ppb (6) | N/A | 3.0 μg/m3 (12) | 29.0 | |
| Jan. 22, 2019, midnight | 39.3 ppb (36) | 17.4 ppb (16) | N/A | 22.0 ppb (20) | N/A | N/A | 21.0 ppb (16) | 0.53 ppb (6) | N/A | 2.0 μg/m3 (8) | 36.0 | |
| Jan. 21, 2019, 11 p.m. | 16.7 ppb (15) | 6.3 ppb (6) | N/A | 10.0 ppb (9) | N/A | N/A | 33.0 ppb (25) | 0.35 ppb (4) | N/A | 3.0 μg/m3 (12) | 25.0 | |
| Jan. 21, 2019, 10 p.m. | 25.3 ppb (23) | 12.2 ppb (11) | N/A | 13.0 ppb (12) | N/A | N/A | 29.0 ppb (22) | 0.43 ppb (5) | N/A | 4.0 μg/m3 (17) | 23.0 | |
| Jan. 21, 2019, 9 p.m. | 33.5 ppb (31) | 15.4 ppb (14) | N/A | 18.0 ppb (17) | N/A | N/A | 25.0 ppb (19) | 0.45 ppb (5) | N/A | 4.0 μg/m3 (17) | 31.0 | |
| Jan. 21, 2019, 8 p.m. | 33.6 ppb (31) | 16.7 ppb (15) | N/A | 17.0 ppb (16) | N/A | N/A | 26.0 ppb (20) | 0.43 ppb (5) | N/A | 5.0 μg/m3 (21) | 31.0 | |
| Jan. 21, 2019, 7 p.m. | 37.0 ppb (34) | 17.2 ppb (16) | N/A | 20.0 ppb (19) | N/A | N/A | 25.0 ppb (19) | 0.43 ppb (5) | N/A | 7.0 μg/m3 (29) | 34.0 | |
| Jan. 21, 2019, 6 p.m. | 45.8 ppb (42) | 21.1 ppb (20) | N/A | 25.0 ppb (23) | N/A | N/A | 22.0 ppb (17) | 0.5 ppb (6) | N/A | 6.0 μg/m3 (25) | 42.0 | |
| Jan. 21, 2019, 5 p.m. | 46.5 ppb (43) | 21.1 ppb (20) | N/A | 25.0 ppb (23) | N/A | N/A | 20.0 ppb (15) | 0.5 ppb (6) | N/A | 9.0 μg/m3 (38) | 43.0 | |
| Jan. 21, 2019, 4 p.m. | 59.9 ppb (56) | 28.3 ppb (26) | N/A | 32.0 ppb (30) | N/A | N/A | 14.0 ppb (11) | 0.54 ppb (6) | N/A | 9.0 μg/m3 (38) | 56.0 | |
| Jan. 21, 2019, 3 p.m. | 49.6 ppb (46) | 18.9 ppb (18) | N/A | 31.0 ppb (29) | N/A | N/A | 14.0 ppb (11) | 0.47 ppb (5) | N/A | 8.0 μg/m3 (33) | 46.0 | |
| Jan. 21, 2019, 2 p.m. | 44.1 ppb (41) | 22.3 ppb (21) | N/A | 22.0 ppb (20) | N/A | N/A | 22.0 ppb (17) | 0.47 ppb (5) | N/A | 9.0 μg/m3 (38) | 41.0 | |
| Jan. 21, 2019, 1 p.m. | 32.8 ppb (30) | 15.8 ppb (15) | N/A | 17.0 ppb (16) | N/A | N/A | 27.0 ppb (21) | 0.41 ppb (5) | N/A | 5.0 μg/m3 (21) | 30.0 | |
| Jan. 21, 2019, noon | 15.7 ppb (15) | 6.9 ppb (6) | N/A | 9.0 ppb (8) | N/A | N/A | 35.0 ppb (27) | 0.32 ppb (4) | N/A | 5.0 μg/m3 (21) | 27.0 | |
| Jan. 21, 2019, 11 a.m. | 8.5 ppb (8) | 3.8 ppb (4) | N/A | 5.0 ppb (5) | N/A | N/A | 38.0 ppb (29) | 0.28 ppb (3) | N/A | 5.0 μg/m3 (21) | 29.0 | |
| Jan. 21, 2019, 10 a.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. 21, 2019, 9 a.m. | 9.1 ppb (8) | 4.2 ppb (4) | N/A | 5.0 ppb (5) | N/A | N/A | 38.0 ppb (29) | 0.28 ppb (3) | N/A | 4.0 μg/m3 (17) | 29.0 | |
| Jan. 21, 2019, 8 a.m. | 7.9 ppb (7) | 3.0 ppb (3) | N/A | 5.0 ppb (5) | N/A | N/A | 37.0 ppb (28) | 0.32 ppb (4) | N/A | 6.0 μg/m3 (25) | 28.0 | |
| Jan. 21, 2019, 7 a.m. | 16.0 ppb (15) | 5.6 ppb (5) | N/A | 10.0 ppb (9) | N/A | N/A | 33.0 ppb (25) | 0.39 ppb (4) | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 21, 2019, 6 a.m. | 14.0 ppb (13) | 4.8 ppb (4) | N/A | 9.0 ppb (8) | N/A | N/A | 33.0 ppb (25) | 0.45 ppb (5) | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 21, 2019, 5 a.m. | 17.4 ppb (16) | 5.4 ppb (5) | N/A | 12.0 ppb (11) | N/A | N/A | 31.0 ppb (24) | 0.44 ppb (5) | N/A | 5.0 μg/m3 (21) | 24.0 | |
| Jan. 21, 2019, 4 a.m. | 10.8 ppb (10) | 4.8 ppb (4) | N/A | 6.0 ppb (6) | N/A | N/A | 39.0 ppb (30) | 0.38 ppb (4) | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 21, 2019, 3 a.m. | 14.4 ppb (13) | 6.1 ppb (6) | N/A | 8.0 ppb (7) | N/A | N/A | 35.0 ppb (27) | 0.42 ppb (5) | N/A | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 21, 2019, 2 a.m. | 9.3 ppb (9) | 3.8 ppb (4) | N/A | 6.0 ppb (6) | N/A | N/A | 38.0 ppb (29) | 0.36 ppb (4) | N/A | 4.0 μg/m3 (17) | 29.0 | |
| Jan. 21, 2019, 1 a.m. | 4.8 ppb (4) | 2.3 ppb (2) | N/A | 3.0 ppb (3) | N/A | N/A | 41.0 ppb (32) | 0.32 ppb (4) | N/A | 2.0 μg/m3 (8) | 32.0 | |
| Jan. 21, 2019, midnight | 15.0 ppb (14) | 5.0 ppb (5) | N/A | 10.0 ppb (9) | N/A | N/A | 34.0 ppb (26) | 0.39 ppb (4) | N/A | 3.0 μg/m3 (12) | 26.0 | |
| Jan. 20, 2019, 11 p.m. | 15.5 ppb (14) | 5.8 ppb (5) | N/A | 10.0 ppb (9) | N/A | N/A | 35.0 ppb (27) | 0.41 ppb (5) | N/A | 5.0 μg/m3 (21) | 27.0 | |
| Jan. 20, 2019, 10 p.m. | 10.4 ppb (10) | 5.2 ppb (5) | N/A | 5.0 ppb (5) | N/A | N/A | 38.0 ppb (29) | 0.4 ppb (4) | N/A | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 20, 2019, 9 p.m. | 9.4 ppb (9) | 5.1 ppb (5) | N/A | 4.0 ppb (4) | N/A | N/A | 38.0 ppb (29) | 0.39 ppb (4) | N/A | 6.0 μg/m3 (25) | 29.0 | |
| Jan. 20, 2019, 8 p.m. | 10.0 ppb (9) | 4.8 ppb (4) | N/A | 5.0 ppb (5) | N/A | N/A | 33.0 ppb (25) | 0.42 ppb (5) | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 20, 2019, 7 p.m. | 15.1 ppb (14) | 6.5 ppb (6) | N/A | 9.0 ppb (8) | N/A | N/A | 28.0 ppb (22) | 0.45 ppb (5) | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 20, 2019, 6 p.m. | 21.1 ppb (20) | 9.0 ppb (8) | N/A | 12.0 ppb (11) | N/A | N/A | 16.0 ppb (12) | 0.47 ppb (5) | N/A | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 20, 2019, 5 p.m. | 19.2 ppb (18) | 6.2 ppb (6) | N/A | 13.0 ppb (12) | N/A | N/A | 16.0 ppb (12) | 0.47 ppb (5) | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 20, 2019, 4 p.m. | 22.6 ppb (21) | 7.8 ppb (7) | N/A | 15.0 ppb (14) | N/A | N/A | 11.0 ppb (8) | 0.47 ppb (5) | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 20, 2019, 3 p.m. | 8.1 ppb (8) | 0.4 ppb (0) | N/A | 8.0 ppb (7) | N/A | N/A | 13.0 ppb (10) | 0.36 ppb (4) | N/A | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 20, 2019, 2 p.m. | 19.8 ppb (18) | 3.0 ppb (3) | N/A | 17.0 ppb (16) | N/A | N/A | 4.0 ppb (3) | 0.43 ppb (5) | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 20, 2019, 1 p.m. | 20.9 ppb (19) | 4.0 ppb (4) | N/A | 17.0 ppb (16) | N/A | N/A | 5.0 ppb (4) | 0.5 ppb (6) | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 20, 2019, noon | 20.2 ppb (19) | 1.6 ppb (1) | N/A | 19.0 ppb (18) | N/A | N/A | 3.0 ppb (2) | 0.58 ppb (6) | N/A | 12.0 μg/m3 (50) | 50.0 | |
| Jan. 20, 2019, 11 a.m. | 30.2 ppb (28) | 9.2 ppb (9) | N/A | 21.0 ppb (19) | N/A | N/A | 1.0 ppb (1) | 0.75 ppb (8) | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Jan. 20, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 20, 2019, 9 a.m. | 52.1 ppb (48) | 24.3 ppb (23) | N/A | 28.0 ppb (26) | N/A | N/A | 0.0 ppb (0) | 0.81 ppb (9) | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 20, 2019, 8 a.m. | 46.1 ppb (43) | 20.3 ppb (19) | N/A | 26.0 ppb (24) | N/A | N/A | 0.0 ppb (0) | 0.77 ppb (9) | N/A | 12.0 μg/m3 (50) | 50.0 | |
| Jan. 20, 2019, 7 a.m. | 46.6 ppb (43) | 24.2 ppb (22) | N/A | 23.0 ppb (21) | N/A | N/A | 1.0 ppb (1) | 1.04 ppb (12) | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Jan. 20, 2019, 6 a.m. | 39.8 ppb (37) | 12.8 ppb (12) | N/A | 27.0 ppb (25) | N/A | N/A | 2.0 ppb (2) | 0.66 ppb (7) | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 20, 2019, 5 a.m. | 43.2 ppb (40) | 18.6 ppb (17) | N/A | 25.0 ppb (23) | N/A | N/A | 4.0 ppb (3) | 0.82 ppb (9) | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 20, 2019, 4 a.m. | 51.3 ppb (48) | 21.7 ppb (20) | N/A | 30.0 ppb (28) | N/A | N/A | 1.0 ppb (1) | 0.98 ppb (11) | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Jan. 20, 2019, 3 a.m. | 33.8 ppb (31) | 7.1 ppb (7) | N/A | 27.0 ppb (25) | N/A | N/A | 6.0 ppb (5) | 0.61 ppb (7) | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 20, 2019, 2 a.m. | 27.5 ppb (25) | 4.9 ppb (5) | N/A | 23.0 ppb (21) | N/A | N/A | 11.0 ppb (8) | 0.52 ppb (6) | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 20, 2019, 1 a.m. | 23.2 ppb (21) | 3.7 ppb (3) | N/A | 20.0 ppb (19) | N/A | N/A | 17.0 ppb (13) | 0.51 ppb (6) | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 20, 2019, midnight | 35.2 ppb (33) | 14.9 ppb (14) | N/A | 20.0 ppb (19) | N/A | N/A | 16.0 ppb (12) | 0.62 ppb (7) | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 19, 2019, 11 p.m. | 43.2 ppb (40) | 19.8 ppb (18) | N/A | 23.0 ppb (21) | N/A | N/A | 12.0 ppb (9) | 0.72 ppb (8) | N/A | 9.0 μg/m3 (38) | 40.0 | |
| Jan. 19, 2019, 10 p.m. | 39.5 ppb (37) | 18.6 ppb (17) | N/A | 21.0 ppb (19) | N/A | N/A | 15.0 ppb (12) | 0.71 ppb (8) | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 19, 2019, 9 p.m. | 42.5 ppb (39) | 20.9 ppb (19) | N/A | 22.0 ppb (20) | N/A | N/A | 13.0 ppb (10) | 0.68 ppb (8) | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Jan. 19, 2019, 8 p.m. | 40.5 ppb (38) | 21.6 ppb (20) | N/A | 19.0 ppb (18) | N/A | N/A | 14.0 ppb (11) | 0.68 ppb (8) | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 19, 2019, 7 p.m. | 44.0 ppb (41) | 25.5 ppb (24) | N/A | 19.0 ppb (18) | N/A | N/A | 11.0 ppb (8) | 0.71 ppb (8) | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 19, 2019, 6 p.m. | 52.7 ppb (49) | 34.1 ppb (32) | N/A | 19.0 ppb (18) | N/A | N/A | 6.0 ppb (5) | 0.82 ppb (9) | N/A | 23.0 μg/m3 (73) | 73.0 | |
| Jan. 19, 2019, 5 p.m. | 42.0 ppb (39) | 21.2 ppb (20) | N/A | 21.0 ppb (19) | N/A | N/A | 5.0 ppb (4) | 0.7 ppb (8) | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 19, 2019, 4 p.m. | 53.9 ppb (50) | 29.2 ppb (27) | N/A | 25.0 ppb (23) | N/A | N/A | 2.0 ppb (2) | 0.73 ppb (8) | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Jan. 19, 2019, 3 p.m. | 53.8 ppb (50) | 28.6 ppb (26) | N/A | 25.0 ppb (23) | N/A | N/A | 2.0 ppb (2) | 0.72 ppb (8) | N/A | 17.0 μg/m3 (61) | 61.0 | |
| Jan. 19, 2019, 2 p.m. | 38.9 ppb (36) | 14.9 ppb (14) | N/A | 24.0 ppb (22) | N/A | N/A | 3.0 ppb (2) | 0.64 ppb (7) | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 19, 2019, 1 p.m. | 23.5 ppb (22) | 3.7 ppb (3) | N/A | 20.0 ppb (19) | N/A | N/A | 9.0 ppb (7) | 0.47 ppb (5) | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 19, 2019, noon | 30.4 ppb (28) | 10.5 ppb (10) | N/A | 20.0 ppb (19) | N/A | N/A | 9.0 ppb (7) | 0.57 ppb (6) | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 19, 2019, 11 a.m. | 21.3 ppb (20) | 3.9 ppb (4) | N/A | 18.0 ppb (17) | N/A | N/A | 8.0 ppb (6) | 0.51 ppb (6) | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 19, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 19, 2019, 9 a.m. | 21.9 ppb (20) | 5.5 ppb (5) | N/A | 16.0 ppb (15) | N/A | N/A | 15.0 ppb (12) | 0.53 ppb (6) | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 19, 2019, 8 a.m. | 21.4 ppb (20) | 4.8 ppb (4) | N/A | 17.0 ppb (16) | N/A | N/A | 16.0 ppb (12) | 0.49 ppb (5) | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 19, 2019, 7 a.m. | 12.7 ppb (12) | 0.3 ppb (0) | N/A | 12.0 ppb (11) | N/A | N/A | 21.0 ppb (16) | 0.39 ppb (4) | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Jan. 19, 2019, 6 a.m. | 45.4 ppb (42) | 16.0 ppb (15) | N/A | 29.0 ppb (27) | N/A | N/A | 3.0 ppb (2) | 0.76 ppb (8) | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Jan. 19, 2019, 5 a.m. | 33.8 ppb (31) | 3.8 ppb (4) | N/A | 30.0 ppb (28) | N/A | N/A | 4.0 ppb (3) | 0.57 ppb (6) | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 19, 2019, 4 a.m. | 44.5 ppb (41) | 17.5 ppb (16) | N/A | 27.0 ppb (25) | N/A | N/A | 9.0 ppb (7) | 0.65 ppb (7) | N/A | 20.0 μg/m3 (67) | 67.0 | |
| Jan. 19, 2019, 3 a.m. | 48.8 ppb (45) | 17.6 ppb (16) | N/A | 31.0 ppb (29) | N/A | N/A | 5.0 ppb (4) | 0.73 ppb (8) | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 19, 2019, 2 a.m. | 38.8 ppb (36) | 8.6 ppb (8) | N/A | 30.0 ppb (28) | N/A | N/A | 8.0 ppb (6) | 0.59 ppb (7) | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 19, 2019, 1 a.m. | 27.1 ppb (25) | 4.8 ppb (4) | N/A | 22.0 ppb (20) | N/A | N/A | 15.0 ppb (12) | 0.37 ppb (4) | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 19, 2019, midnight | 51.4 ppb (48) | 21.1 ppb (20) | N/A | 30.0 ppb (28) | N/A | N/A | 11.0 ppb (8) | 0.56 ppb (6) | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 18, 2019, 11 p.m. | 50.5 ppb (47) | 20.6 ppb (19) | N/A | 30.0 ppb (28) | N/A | N/A | 10.0 ppb (8) | 0.58 ppb (6) | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Jan. 18, 2019, 10 p.m. | 61.2 ppb (58) | 32.2 ppb (30) | N/A | 29.0 ppb (27) | N/A | N/A | 10.0 ppb (8) | 0.64 ppb (7) | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 18, 2019, 9 p.m. | 59.9 ppb (56) | 32.9 ppb (30) | N/A | 27.0 ppb (25) | N/A | N/A | 9.0 ppb (7) | 0.68 ppb (8) | N/A | 14.0 μg/m3 (54) | 56.0 | |
| Jan. 18, 2019, 8 p.m. | 60.5 ppb (57) | 34.3 ppb (32) | N/A | 26.0 ppb (24) | N/A | N/A | 9.0 ppb (7) | 0.68 ppb (8) | N/A | 17.0 μg/m3 (61) | 61.0 | |
| Jan. 18, 2019, 7 p.m. | 86.3 ppb (84) | 53.5 ppb (50) | N/A | 33.0 ppb (31) | N/A | N/A | 4.0 ppb (3) | 0.8 ppb (9) | N/A | 16.0 μg/m3 (59) | 84.0 | |
| Jan. 18, 2019, 6 p.m. | 97.1 ppb (96) | 62.6 ppb (59) | N/A | 35.0 ppb (32) | N/A | N/A | 3.0 ppb (2) | 0.88 ppb (10) | N/A | 22.0 μg/m3 (71) | 96.0 | |
| Jan. 18, 2019, 5 p.m. | 102.7 ppb (100) | 66.5 ppb (63) | N/A | 36.0 ppb (33) | N/A | N/A | 2.0 ppb (2) | 0.82 ppb (9) | N/A | 17.0 μg/m3 (61) | 100.0 | |
| Jan. 18, 2019, 4 p.m. | 90.2 ppb (89) | 56.0 ppb (52) | N/A | 34.0 ppb (31) | N/A | N/A | 1.0 ppb (1) | 0.86 ppb (10) | N/A | 16.0 μg/m3 (59) | 89.0 | |
| Jan. 18, 2019, 3 p.m. | 69.6 ppb (67) | 38.0 ppb (35) | N/A | 32.0 ppb (30) | N/A | N/A | 1.0 ppb (1) | 0.71 ppb (8) | N/A | 12.0 μg/m3 (50) | 67.0 | |
| Jan. 18, 2019, 2 p.m. | 54.0 ppb (50) | 27.2 ppb (25) | N/A | 27.0 ppb (25) | N/A | N/A | 2.0 ppb (2) | 0.59 ppb (7) | N/A | 7.0 μg/m3 (29) | 50.0 | |
| Jan. 18, 2019, 1 p.m. | 17.2 ppb (16) | 2.0 ppb (2) | N/A | 15.0 ppb (14) | N/A | N/A | 12.0 ppb (9) | 0.41 ppb (5) | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 18, 2019, noon | 13.4 ppb (12) | 1.6 ppb (1) | N/A | 12.0 ppb (11) | N/A | N/A | 17.0 ppb (13) | 0.35 ppb (4) | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 18, 2019, 11 a.m. | 10.4 ppb (10) | 0.4 ppb (0) | N/A | 10.0 ppb (9) | N/A | N/A | 20.0 ppb (15) | 0.35 ppb (4) | N/A | 12.0 μg/m3 (50) | 50.0 | |
| Jan. 18, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 18, 2019, 9 a.m. | 13.3 ppb (12) | 0.0 ppb (0) | N/A | 13.0 ppb (12) | N/A | N/A | 19.0 ppb (15) | 0.4 ppb (4) | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 18, 2019, 8 a.m. | 14.3 ppb (13) | 0.0 ppb (0) | N/A | 14.0 ppb (13) | N/A | N/A | 19.0 ppb (15) | 0.42 ppb (5) | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Jan. 18, 2019, 7 a.m. | 17.9 ppb (17) | 0.6 ppb (1) | N/A | 17.0 ppb (16) | N/A | N/A | 18.0 ppb (14) | 0.45 ppb (5) | N/A | 12.0 μg/m3 (50) | 50.0 | |
| Jan. 18, 2019, 6 a.m. | 22.4 ppb (21) | 1.9 ppb (2) | N/A | 21.0 ppb (19) | N/A | N/A | 16.0 ppb (12) | 0.52 ppb (6) | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Jan. 18, 2019, 5 a.m. | 32.9 ppb (30) | 9.3 ppb (9) | N/A | 24.0 ppb (22) | N/A | N/A | 17.0 ppb (13) | 0.54 ppb (6) | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 18, 2019, 4 a.m. | 27.2 ppb (25) | 8.7 ppb (8) | N/A | 19.0 ppb (18) | N/A | N/A | 24.0 ppb (18) | 0.51 ppb (6) | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 18, 2019, 3 a.m. | 25.2 ppb (23) | 9.7 ppb (9) | N/A | 16.0 ppb (15) | N/A | N/A | 25.0 ppb (19) | 0.48 ppb (5) | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 18, 2019, 2 a.m. | 28.1 ppb (26) | 10.9 ppb (10) | N/A | 17.0 ppb (16) | N/A | N/A | 25.0 ppb (19) | 0.48 ppb (5) | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 18, 2019, 1 a.m. | 17.8 ppb (16) | 8.0 ppb (7) | N/A | 10.0 ppb (9) | N/A | N/A | 31.0 ppb (24) | 0.41 ppb (5) | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Jan. 18, 2019, midnight | 26.8 ppb (25) | 11.1 ppb (10) | N/A | 16.0 ppb (15) | N/A | N/A | 26.0 ppb (20) | 0.47 ppb (5) | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 17, 2019, 11 p.m. | 33.5 ppb (31) | 13.6 ppb (13) | N/A | 20.0 ppb (19) | N/A | N/A | 25.0 ppb (19) | 0.46 ppb (5) | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 17, 2019, 10 p.m. | 40.8 ppb (38) | 17.3 ppb (16) | N/A | 24.0 ppb (22) | N/A | N/A | 21.0 ppb (16) | 0.5 ppb (6) | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 17, 2019, 9 p.m. | 30.7 ppb (28) | 14.1 ppb (13) | N/A | 17.0 ppb (16) | N/A | N/A | 29.0 ppb (22) | 0.44 ppb (5) | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 17, 2019, 8 p.m. | 29.9 ppb (28) | 14.5 ppb (13) | N/A | 15.0 ppb (14) | N/A | N/A | 29.0 ppb (22) | 0.41 ppb (5) | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 17, 2019, 7 p.m. | 38.7 ppb (36) | 19.4 ppb (18) | N/A | 19.0 ppb (18) | N/A | N/A | 25.0 ppb (19) | 0.47 ppb (5) | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Jan. 17, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 μg/m3 (61) | 61.0 | |
| Jan. 17, 2019, 5 p.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. 17, 2019, 4 p.m. | 39.2 ppb (36) | 14.1 ppb (13) | N/A | 25.0 ppb (23) | N/A | N/A | 21.0 ppb (16) | 0.4 ppb (4) | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 17, 2019, 3 p.m. | 25.4 ppb (24) | 11.0 ppb (10) | N/A | 14.0 ppb (13) | N/A | N/A | 32.0 ppb (25) | 0.34 ppb (4) | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Jan. 17, 2019, 2 p.m. | 31.5 ppb (29) | 10.1 ppb (9) | N/A | 21.0 ppb (19) | N/A | N/A | 22.0 ppb (17) | 0.39 ppb (4) | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 17, 2019, 1 p.m. | 24.2 ppb (22) | 4.5 ppb (4) | N/A | 20.0 ppb (19) | N/A | N/A | 23.0 ppb (18) | 0.34 ppb (4) | N/A | 17.0 μg/m3 (61) | 61.0 | |
| Jan. 17, 2019, noon | 23.5 ppb (22) | 7.2 ppb (7) | N/A | 16.0 ppb (15) | N/A | N/A | 28.0 ppb (22) | 0.35 ppb (4) | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 17, 2019, 11 a.m. | 11.4 ppb (11) | 3.4 ppb (3) | N/A | 8.0 ppb (7) | N/A | N/A | 35.0 ppb (27) | 0.28 ppb (3) | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Jan. 17, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 17, 2019, 9 a.m. | 5.1 ppb (5) | 1.9 ppb (2) | N/A | 3.0 ppb (3) | N/A | N/A | 40.0 ppb (31) | 0.28 ppb (3) | N/A | 12.0 μg/m3 (50) | 50.0 | |
| Jan. 17, 2019, 8 a.m. | 7.3 ppb (7) | 2.1 ppb (2) | N/A | 5.0 ppb (5) | N/A | N/A | 37.0 ppb (28) | 0.29 ppb (3) | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 17, 2019, 7 a.m. | 4.7 ppb (4) | 2.2 ppb (2) | N/A | 2.0 ppb (2) | N/A | N/A | 39.0 ppb (30) | 0.28 ppb (3) | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Jan. 17, 2019, 6 a.m. | 5.6 ppb (5) | 2.7 ppb (3) | N/A | 3.0 ppb (3) | N/A | N/A | 35.0 ppb (27) | 0.3 ppb (3) | N/A | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 17, 2019, 5 a.m. | 9.9 ppb (9) | 2.6 ppb (2) | N/A | 7.0 ppb (6) | N/A | N/A | 27.0 ppb (21) | 0.32 ppb (4) | N/A | 4.0 μg/m3 (17) | 21.0 | |
| Jan. 17, 2019, 4 a.m. | 6.7 ppb (6) | 0.9 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | 28.0 ppb (22) | 0.29 ppb (3) | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 17, 2019, 3 a.m. | 9.7 ppb (9) | 1.5 ppb (1) | N/A | 8.0 ppb (7) | N/A | N/A | 25.0 ppb (19) | 0.32 ppb (4) | N/A | 3.0 μg/m3 (12) | 19.0 | |
| Jan. 17, 2019, 2 a.m. | 6.1 ppb (6) | 0.6 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | 27.0 ppb (21) | 0.3 ppb (3) | N/A | 2.0 μg/m3 (8) | 21.0 | |
| Jan. 17, 2019, 1 a.m. | 5.7 ppb (5) | 0.1 ppb (0) | N/A | 6.0 ppb (6) | N/A | N/A | 27.0 ppb (21) | 0.31 ppb (3) | N/A | 3.0 μg/m3 (12) | 21.0 | |
| Jan. 17, 2019, midnight | 7.2 ppb (7) | 0.2 ppb (0) | N/A | 7.0 ppb (6) | N/A | N/A | 26.0 ppb (20) | 0.33 ppb (4) | N/A | 4.0 μg/m3 (17) | 20.0 | |
| Jan. 16, 2019, 11 p.m. | 7.9 ppb (7) | 0.3 ppb (0) | N/A | 8.0 ppb (7) | N/A | N/A | 27.0 ppb (21) | 0.32 ppb (4) | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 16, 2019, 10 p.m. | 6.8 ppb (6) | 0.2 ppb (0) | N/A | 7.0 ppb (6) | N/A | N/A | 29.0 ppb (22) | 0.3 ppb (3) | N/A | 4.0 μg/m3 (17) | 22.0 | |
| Jan. 16, 2019, 9 p.m. | 6.2 ppb (6) | 0.3 ppb (0) | N/A | 6.0 ppb (6) | N/A | N/A | 32.0 ppb (25) | 0.29 ppb (3) | N/A | 3.0 μg/m3 (12) | 25.0 | |
| Jan. 16, 2019, 8 p.m. | 19.0 ppb (18) | 5.8 ppb (5) | N/A | 13.0 ppb (12) | N/A | N/A | 26.0 ppb (20) | 0.34 ppb (4) | N/A | 4.0 μg/m3 (17) | 20.0 | |
| Jan. 16, 2019, 7 p.m. | 24.2 ppb (22) | 8.5 ppb (8) | N/A | 16.0 ppb (15) | N/A | N/A | 23.0 ppb (18) | 0.37 ppb (4) | N/A | 2.0 μg/m3 (8) | 22.0 | |
| Jan. 16, 2019, 6 p.m. | 11.9 ppb (11) | 1.3 ppb (1) | N/A | 11.0 ppb (10) | N/A | N/A | 27.0 ppb (21) | 0.31 ppb (3) | N/A | 4.0 μg/m3 (17) | 21.0 | |
| Jan. 16, 2019, 5 p.m. | 11.8 ppb (11) | 1.8 ppb (2) | N/A | 10.0 ppb (9) | N/A | N/A | 28.0 ppb (22) | 0.31 ppb (3) | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 16, 2019, 4 p.m. | 11.1 ppb (10) | 0.9 ppb (1) | N/A | 10.0 ppb (9) | N/A | N/A | 28.0 ppb (22) | 0.31 ppb (3) | N/A | 4.0 μg/m3 (17) | 22.0 | |
| Jan. 16, 2019, 3 p.m. | 10.2 ppb (9) | 0.1 ppb (0) | N/A | 10.0 ppb (9) | N/A | N/A | 27.0 ppb (21) | 0.32 ppb (4) | N/A | 4.0 μg/m3 (17) | 21.0 | |
| Jan. 16, 2019, 2 p.m. | 7.6 ppb (7) | 0.1 ppb (0) | N/A | 8.0 ppb (7) | N/A | N/A | 30.0 ppb (23) | 0.28 ppb (3) | N/A | 2.0 μg/m3 (8) | 23.0 | |
| Jan. 16, 2019, 1 p.m. | 6.0 ppb (6) | 0.1 ppb (0) | N/A | 6.0 ppb (6) | N/A | N/A | 31.0 ppb (24) | 0.27 ppb (3) | N/A | 1.0 μg/m3 (4) | 24.0 | |
| Jan. 16, 2019, noon | 4.3 ppb (4) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 33.0 ppb (25) | 0.27 ppb (3) | N/A | 2.0 μg/m3 (8) | 25.0 | |
| Jan. 16, 2019, 11 a.m. | 3.5 ppb (3) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 34.0 ppb (26) | 0.26 ppb (3) | N/A | 4.0 μg/m3 (17) | 26.0 | |
| Jan. 16, 2019, 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 (8) | 8.0 | |
| Jan. 16, 2019, 9 a.m. | 4.9 ppb (5) | 0.1 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 33.0 ppb (25) | 0.27 ppb (3) | N/A | 1.0 μg/m3 (4) | 25.0 | |
| Jan. 16, 2019, 8 a.m. | 4.8 ppb (4) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 35.0 ppb (27) | 0.27 ppb (3) | N/A | 3.0 μg/m3 (12) | 27.0 | |
| Jan. 16, 2019, 7 a.m. | 6.3 ppb (6) | 0.1 ppb (0) | N/A | 6.0 ppb (6) | N/A | N/A | 34.0 ppb (26) | 0.27 ppb (3) | N/A | 5.0 μg/m3 (21) | 26.0 | |
| Jan. 16, 2019, 6 a.m. | 15.9 ppb (15) | 1.9 ppb (2) | N/A | 14.0 ppb (13) | N/A | N/A | 30.0 ppb (23) | 0.35 ppb (4) | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 16, 2019, 5 a.m. | 24.5 ppb (23) | 5.5 ppb (5) | N/A | 19.0 ppb (18) | N/A | N/A | 25.0 ppb (19) | 0.44 ppb (5) | N/A | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 16, 2019, 4 a.m. | 14.0 ppb (13) | 5.7 ppb (5) | N/A | 8.0 ppb (7) | N/A | N/A | 36.0 ppb (28) | 0.35 ppb (4) | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 16, 2019, 3 a.m. | 14.5 ppb (13) | 4.5 ppb (4) | N/A | 10.0 ppb (9) | N/A | N/A | 30.0 ppb (23) | 0.36 ppb (4) | N/A | 4.0 μg/m3 (17) | 23.0 | |
| Jan. 16, 2019, 2 a.m. | 9.8 ppb (9) | 0.8 ppb (1) | N/A | 9.0 ppb (8) | N/A | N/A | 27.0 ppb (21) | 0.32 ppb (4) | N/A | 3.0 μg/m3 (12) | 21.0 | |
| Jan. 16, 2019, 1 a.m. | 11.3 ppb (10) | 0.6 ppb (1) | N/A | 11.0 ppb (10) | N/A | N/A | 22.0 ppb (17) | 0.32 ppb (4) | N/A | 3.0 μg/m3 (12) | 17.0 | |
| Jan. 16, 2019, midnight | 7.3 ppb (7) | 0.5 ppb (0) | N/A | 7.0 ppb (6) | N/A | N/A | 27.0 ppb (21) | 0.29 ppb (3) | N/A | 4.0 μg/m3 (17) | 21.0 | |
| Jan. 15, 2019, 11 p.m. | 7.5 ppb (7) | 0.3 ppb (0) | N/A | 7.0 ppb (6) | N/A | N/A | 27.0 ppb (21) | 0.29 ppb (3) | N/A | 2.0 μg/m3 (8) | 21.0 | |
| Jan. 15, 2019, 10 p.m. | 12.8 ppb (12) | 3.9 ppb (4) | N/A | 9.0 ppb (8) | N/A | N/A | 26.0 ppb (20) | 0.29 ppb (3) | N/A | 3.0 μg/m3 (12) | 20.0 | |
| Jan. 15, 2019, 9 p.m. | 7.6 ppb (7) | 1.0 ppb (1) | N/A | 7.0 ppb (6) | N/A | N/A | 28.0 ppb (22) | 0.27 ppb (3) | N/A | 4.0 μg/m3 (17) | 22.0 | |
| Jan. 15, 2019, 8 p.m. | 18.2 ppb (17) | 6.1 ppb (6) | N/A | 12.0 ppb (11) | N/A | N/A | 23.0 ppb (18) | 0.32 ppb (4) | N/A | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 15, 2019, 7 p.m. | 9.4 ppb (9) | 1.6 ppb (1) | N/A | 8.0 ppb (7) | N/A | N/A | 27.0 ppb (21) | 0.29 ppb (3) | N/A | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 15, 2019, 6 p.m. | 18.6 ppb (17) | 5.6 ppb (5) | N/A | 13.0 ppb (12) | N/A | N/A | 23.0 ppb (18) | 0.33 ppb (4) | N/A | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 15, 2019, 5 p.m. | 12.2 ppb (11) | 1.5 ppb (1) | N/A | 11.0 ppb (10) | N/A | N/A | 24.0 ppb (18) | 0.3 ppb (3) | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 15, 2019, 4 p.m. | 14.4 ppb (13) | 1.4 ppb (1) | N/A | 13.0 ppb (12) | N/A | N/A | 23.0 ppb (18) | 0.31 ppb (3) | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 15, 2019, 3 p.m. | 20.9 ppb (19) | 2.5 ppb (2) | N/A | 18.0 ppb (17) | N/A | N/A | 18.0 ppb (14) | 0.32 ppb (4) | N/A | 3.0 μg/m3 (12) | 19.0 | |
| Jan. 15, 2019, 2 p.m. | 15.3 ppb (14) | 0.7 ppb (1) | N/A | 15.0 ppb (14) | N/A | N/A | 20.0 ppb (15) | 0.31 ppb (3) | N/A | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 15, 2019, 1 p.m. | 16.7 ppb (15) | 2.4 ppb (2) | N/A | 14.0 ppb (13) | N/A | N/A | 23.0 ppb (18) | 0.28 ppb (3) | N/A | 4.0 μg/m3 (17) | 18.0 | |
| Jan. 15, 2019, noon | 4.7 ppb (4) | 0.3 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 35.0 ppb (27) | 0.22 ppb (2) | N/A | 4.0 μg/m3 (17) | 27.0 | |
| Jan. 15, 2019, 11 a.m. | 2.8 ppb (3) | -0.1 ppb (0) | N/A | 3.0 ppb (3) | N/A | N/A | 35.0 ppb (27) | 0.21 ppb (2) | N/A | 4.0 μg/m3 (17) | 27.0 |