Turlock (S Minaret Ave) CA, US: 37.4883, -120.8358
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 25, 2020, 6 a.m. | 23.5 ppb (22) | 6.2 ppb (6) | N/A | 17.0 ppb (16) | N/A | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 22.0 | |
| Jan. 25, 2020, 5 a.m. | 24.1 ppb (22) | 5.1 ppb (5) | N/A | 19.0 ppb (18) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | N/A | 22.0 | |
| Jan. 25, 2020, 4 a.m. | 27.6 ppb (26) | 6.1 ppb (6) | N/A | 22.0 ppb (20) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | N/A | 26.0 | |
| Jan. 25, 2020, 3 a.m. | 25.7 ppb (24) | 3.7 ppb (3) | N/A | 22.0 ppb (20) | N/A | N/A | 7.0 ppb (5) | N/A | N/A | N/A | 24.0 | |
| Jan. 25, 2020, 2 a.m. | 8.3 ppb (8) | -0.4 ppb (0) | N/A | 9.0 ppb (8) | N/A | N/A | 25.0 ppb (19) | N/A | N/A | N/A | 19.0 | |
| Jan. 25, 2020, 1 a.m. | 10.8 ppb (10) | 0.0 ppb (0) | N/A | 11.0 ppb (10) | N/A | N/A | 25.0 ppb (19) | N/A | N/A | N/A | 19.0 | |
| Jan. 25, 2020, midnight | 9.4 ppb (9) | 0.1 ppb (0) | N/A | 9.0 ppb (8) | N/A | N/A | 28.0 ppb (22) | N/A | N/A | N/A | 22.0 | |
| Jan. 24, 2020, 11 p.m. | 7.3 ppb (7) | 0.8 ppb (1) | N/A | 7.0 ppb (6) | N/A | N/A | 30.0 ppb (23) | N/A | N/A | N/A | 23.0 | |
| Jan. 24, 2020, 10 p.m. | 9.5 ppb (9) | 1.7 ppb (2) | N/A | 8.0 ppb (7) | N/A | N/A | 27.0 ppb (21) | N/A | N/A | N/A | 21.0 | |
| Jan. 24, 2020, 9 p.m. | 10.0 ppb (9) | 2.2 ppb (2) | N/A | 8.0 ppb (7) | N/A | N/A | 27.0 ppb (21) | N/A | N/A | N/A | 21.0 | |
| Jan. 24, 2020, 8 p.m. | 25.9 ppb (24) | 10.8 ppb (10) | N/A | 15.0 ppb (14) | N/A | N/A | 15.0 ppb (12) | N/A | N/A | N/A | 24.0 | |
| Jan. 24, 2020, 7 p.m. | 24.3 ppb (23) | 12.2 ppb (11) | N/A | 12.0 ppb (11) | N/A | N/A | 10.0 ppb (8) | N/A | N/A | N/A | 23.0 | |
| Jan. 24, 2020, 6 p.m. | 38.1 ppb (35) | 22.9 ppb (21) | N/A | 15.0 ppb (14) | N/A | N/A | 6.0 ppb (5) | N/A | N/A | N/A | 35.0 | |
| Jan. 24, 2020, 5 p.m. | 27.2 ppb (25) | 14.5 ppb (13) | N/A | 13.0 ppb (12) | N/A | N/A | 3.0 ppb (2) | N/A | N/A | N/A | 25.0 | |
| Jan. 24, 2020, 4 p.m. | 34.5 ppb (32) | 20.2 ppb (19) | N/A | 14.0 ppb (13) | N/A | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 32.0 | |
| Jan. 24, 2020, 3 p.m. | 32.9 ppb (30) | 16.7 ppb (15) | N/A | 16.0 ppb (15) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 30.0 | |
| Jan. 24, 2020, 2 p.m. | 25.1 ppb (23) | 9.9 ppb (9) | N/A | 15.0 ppb (14) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 23.0 | |
| Jan. 24, 2020, 1 p.m. | 39.5 ppb (37) | 25.0 ppb (23) | N/A | 15.0 ppb (14) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 37.0 | |
| Jan. 24, 2020, noon | 40.0 ppb (37) | 25.9 ppb (24) | N/A | 14.0 ppb (13) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 37.0 | |
| Jan. 24, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | |
| Jan. 24, 2020, 10 a.m. | 29.3 ppb (27) | 19.6 ppb (18) | N/A | 10.0 ppb (9) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 27.0 | |
| Jan. 24, 2020, 9 a.m. | 27.4 ppb (25) | 16.5 ppb (15) | N/A | 11.0 ppb (10) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 25.0 | |
| Jan. 24, 2020, 8 a.m. | 28.0 ppb (26) | 14.1 ppb (13) | N/A | 14.0 ppb (13) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 26.0 | |
| Jan. 24, 2020, 7 a.m. | 24.4 ppb (23) | 7.3 ppb (7) | N/A | 17.0 ppb (16) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 23.0 | |
| Jan. 24, 2020, 6 a.m. | 26.0 ppb (24) | 7.5 ppb (7) | N/A | 18.0 ppb (17) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | N/A | 24.0 | |
| Jan. 24, 2020, 5 a.m. | 25.8 ppb (24) | 6.1 ppb (6) | N/A | 20.0 ppb (19) | N/A | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 24.0 | |
| Jan. 24, 2020, 4 a.m. | 21.1 ppb (20) | 2.4 ppb (2) | N/A | 19.0 ppb (18) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | N/A | 20.0 | |
| Jan. 24, 2020, 3 a.m. | 15.9 ppb (15) | 0.4 ppb (0) | N/A | 16.0 ppb (15) | N/A | N/A | 9.0 ppb (7) | N/A | N/A | N/A | 15.0 | |
| Jan. 24, 2020, 2 a.m. | 12.0 ppb (11) | 0.1 ppb (0) | N/A | 12.0 ppb (11) | N/A | N/A | 16.0 ppb (12) | N/A | N/A | N/A | 12.0 | |
| Jan. 24, 2020, 1 a.m. | 9.3 ppb (9) | -0.1 ppb (0) | N/A | 9.0 ppb (8) | N/A | N/A | 22.0 ppb (17) | N/A | N/A | N/A | 17.0 | |
| Jan. 24, 2020, midnight | 7.1 ppb (7) | -0.1 ppb (0) | N/A | 7.0 ppb (6) | N/A | N/A | 25.0 ppb (19) | N/A | N/A | N/A | 19.0 | |
| Jan. 23, 2020, 11 p.m. | 9.8 ppb (9) | 0.6 ppb (1) | N/A | 9.0 ppb (8) | N/A | N/A | 25.0 ppb (19) | N/A | N/A | N/A | 19.0 | |
| Jan. 23, 2020, 10 p.m. | 13.0 ppb (12) | 2.5 ppb (2) | N/A | 11.0 ppb (10) | N/A | N/A | 24.0 ppb (18) | N/A | N/A | N/A | 18.0 | |
| Jan. 23, 2020, 9 p.m. | 16.1 ppb (15) | 3.9 ppb (4) | N/A | 12.0 ppb (11) | N/A | N/A | 22.0 ppb (17) | N/A | N/A | 20.0 μg/m3 (67) | 67.0 | |
| Jan. 23, 2020, 8 p.m. | 20.6 ppb (19) | 4.9 ppb (5) | N/A | 16.0 ppb (15) | N/A | N/A | 17.0 ppb (13) | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Jan. 23, 2020, 7 p.m. | 15.2 ppb (14) | 3.8 ppb (4) | N/A | 11.0 ppb (10) | N/A | N/A | 18.0 ppb (14) | N/A | N/A | 24.0 μg/m3 (76) | 76.0 | |
| Jan. 23, 2020, 6 p.m. | 41.8 ppb (39) | 19.7 ppb (18) | N/A | 22.0 ppb (20) | N/A | N/A | 8.0 ppb (6) | N/A | N/A | 25.0 μg/m3 (78) | 78.0 | |
| Jan. 23, 2020, 5 p.m. | 55.3 ppb (51) | 34.1 ppb (32) | N/A | 21.0 ppb (19) | N/A | N/A | 3.0 ppb (2) | N/A | N/A | 28.0 μg/m3 (84) | 84.0 | |
| Jan. 23, 2020, 4 p.m. | 65.7 ppb (62) | 52.3 ppb (48) | N/A | 13.0 ppb (12) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Jan. 23, 2020, 3 p.m. | 51.2 ppb (47) | 39.5 ppb (37) | N/A | 12.0 ppb (11) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 11.0 μg/m3 (46) | 47.0 | |
| Jan. 23, 2020, 2 p.m. | 34.2 ppb (32) | 23.1 ppb (21) | N/A | 11.0 ppb (10) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 6.0 μg/m3 (25) | 32.0 | |
| Jan. 23, 2020, 1 p.m. | 35.5 ppb (33) | 24.3 ppb (23) | N/A | 11.0 ppb (10) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 6.0 μg/m3 (25) | 33.0 | |
| Jan. 23, 2020, noon | 27.4 ppb (25) | 15.8 ppb (15) | N/A | 12.0 ppb (11) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 23, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Jan. 23, 2020, 10 a.m. | 27.2 ppb (25) | 8.9 ppb (8) | N/A | 18.0 ppb (17) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Jan. 23, 2020, 9 a.m. | 31.7 ppb (29) | 16.3 ppb (15) | N/A | 15.0 ppb (14) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 24.0 μg/m3 (76) | 76.0 | |
| Jan. 23, 2020, 8 a.m. | 36.1 ppb (33) | 20.5 ppb (19) | N/A | 16.0 ppb (15) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 17.0 μg/m3 (61) | 61.0 | |
| Jan. 23, 2020, 7 a.m. | 33.5 ppb (31) | 17.2 ppb (16) | N/A | 16.0 ppb (15) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| Jan. 23, 2020, 6 a.m. | 38.9 ppb (36) | 19.0 ppb (18) | N/A | 20.0 ppb (19) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 23, 2020, 5 a.m. | 29.1 ppb (27) | 6.9 ppb (6) | N/A | 22.0 ppb (20) | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 23, 2020, 4 a.m. | 23.5 ppb (22) | 3.6 ppb (3) | N/A | 20.0 ppb (19) | N/A | N/A | 4.0 ppb (3) | N/A | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 23, 2020, 3 a.m. | 11.5 ppb (11) | 0.2 ppb (0) | N/A | 11.0 ppb (10) | N/A | N/A | 18.0 ppb (14) | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 23, 2020, 2 a.m. | 13.1 ppb (12) | 0.3 ppb (0) | N/A | 13.0 ppb (12) | N/A | N/A | 19.0 ppb (15) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 23, 2020, 1 a.m. | 9.1 ppb (8) | 0.0 ppb (0) | N/A | 9.0 ppb (8) | N/A | N/A | 24.0 ppb (18) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 23, 2020, midnight | 5.2 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 29.0 ppb (22) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 22, 2020, 11 p.m. | 7.1 ppb (7) | 0.4 ppb (0) | N/A | 7.0 ppb (6) | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 22, 2020, 10 p.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. 22, 2020, 9 p.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. 22, 2020, 8 p.m. | 6.0 ppb (6) | 0.3 ppb (0) | N/A | 6.0 ppb (6) | N/A | N/A | 29.0 ppb (22) | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Jan. 22, 2020, 7 p.m. | 6.5 ppb (6) | 0.5 ppb (0) | N/A | 6.0 ppb (6) | N/A | N/A | 28.0 ppb (22) | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 22, 2020, 6 p.m. | 4.8 ppb (4) | 0.3 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 28.0 ppb (22) | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 22, 2020, 5 p.m. | 13.7 ppb (13) | 4.9 ppb (5) | N/A | 9.0 ppb (8) | N/A | N/A | 23.0 ppb (18) | N/A | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 22, 2020, 4 p.m. | 20.3 ppb (19) | 5.4 ppb (5) | N/A | 15.0 ppb (14) | N/A | N/A | 11.0 ppb (8) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 22, 2020, 3 p.m. | 15.3 ppb (14) | 1.8 ppb (2) | N/A | 14.0 ppb (13) | N/A | N/A | 7.0 ppb (5) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 22, 2020, 2 p.m. | 14.4 ppb (13) | 3.5 ppb (3) | N/A | 11.0 ppb (10) | N/A | N/A | 12.0 ppb (9) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 22, 2020, 1 p.m. | 5.3 ppb (5) | -0.7 ppb (0) | N/A | 6.0 ppb (6) | N/A | N/A | 17.0 ppb (13) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 22, 2020, noon | 5.1 ppb (5) | -0.3 ppb (0) | N/A | 6.0 ppb (6) | N/A | N/A | 22.0 ppb (17) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 22, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 22, 2020, 10 a.m. | 7.0 ppb (6) | -0.3 ppb (0) | N/A | 7.0 ppb (6) | N/A | N/A | 18.0 ppb (14) | N/A | N/A | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 22, 2020, 9 a.m. | 5.2 ppb (5) | -0.6 ppb (0) | N/A | 6.0 ppb (6) | N/A | N/A | 24.0 ppb (18) | N/A | N/A | 2.0 μg/m3 (8) | 18.0 | |
| Jan. 22, 2020, 8 a.m. | 6.3 ppb (6) | -0.4 ppb (0) | N/A | 7.0 ppb (6) | N/A | N/A | 25.0 ppb (19) | N/A | N/A | 3.0 μg/m3 (12) | 19.0 | |
| Jan. 22, 2020, 7 a.m. | 2.7 ppb (3) | -0.5 ppb (0) | N/A | 3.0 ppb (3) | N/A | N/A | 29.0 ppb (22) | N/A | N/A | 5.0 μg/m3 (21) | 22.0 | |
| Jan. 22, 2020, 6 a.m. | 3.6 ppb (3) | -0.4 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 26.0 ppb (20) | N/A | N/A | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 22, 2020, 5 a.m. | 4.8 ppb (4) | 0.1 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 25.0 ppb (19) | N/A | N/A | 4.0 μg/m3 (17) | 19.0 | |
| Jan. 22, 2020, 4 a.m. | 5.3 ppb (5) | -0.3 ppb (0) | N/A | 6.0 ppb (6) | N/A | N/A | 23.0 ppb (18) | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 22, 2020, 3 a.m. | 5.3 ppb (5) | -0.5 ppb (0) | N/A | 6.0 ppb (6) | N/A | N/A | 23.0 ppb (18) | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 22, 2020, 2 a.m. | 6.4 ppb (6) | -0.4 ppb (0) | N/A | 7.0 ppb (6) | N/A | N/A | 24.0 ppb (18) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 22, 2020, 1 a.m. | 6.2 ppb (6) | -0.3 ppb (0) | N/A | 7.0 ppb (6) | N/A | N/A | 26.0 ppb (20) | N/A | N/A | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 22, 2020, midnight | 5.2 ppb (5) | -0.2 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 29.0 ppb (22) | N/A | N/A | 5.0 μg/m3 (21) | 22.0 | |
| Jan. 21, 2020, 11 p.m. | 3.7 ppb (3) | -0.2 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 32.0 ppb (25) | N/A | N/A | 3.0 μg/m3 (12) | 25.0 | |
| Jan. 21, 2020, 10 p.m. | 3.2 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | N/A | 33.0 ppb (25) | N/A | N/A | 4.0 μg/m3 (17) | 25.0 | |
| Jan. 21, 2020, 9 p.m. | 3.8 ppb (4) | 0.2 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 31.0 ppb (24) | N/A | N/A | N/A | 24.0 | |
| Jan. 21, 2020, 8 p.m. | 4.3 ppb (4) | 0.6 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 28.0 ppb (22) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 21, 2020, 7 p.m. | 4.7 ppb (4) | 0.9 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 22.0 ppb (17) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 21, 2020, 6 p.m. | 6.1 ppb (6) | 1.3 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 23.0 ppb (18) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 21, 2020, 5 p.m. | 16.7 ppb (15) | 6.9 ppb (6) | N/A | 10.0 ppb (9) | N/A | N/A | 11.0 ppb (8) | N/A | N/A | 17.0 μg/m3 (61) | 61.0 | |
| Jan. 21, 2020, 4 p.m. | 15.4 ppb (14) | 5.9 ppb (5) | N/A | 10.0 ppb (9) | N/A | N/A | 4.0 ppb (3) | N/A | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 21, 2020, 3 p.m. | 26.9 ppb (25) | 15.6 ppb (14) | N/A | 11.0 ppb (10) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Jan. 21, 2020, 2 p.m. | 28.1 ppb (26) | 18.7 ppb (17) | N/A | 9.0 ppb (8) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Jan. 21, 2020, 1 p.m. | 25.6 ppb (24) | 18.7 ppb (17) | N/A | 7.0 ppb (6) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Jan. 21, 2020, noon | 24.6 ppb (23) | 18.0 ppb (17) | N/A | 7.0 ppb (6) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 17.0 μg/m3 (61) | 61.0 | |
| Jan. 21, 2020, 11 a.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. 21, 2020, 10 a.m. | 8.3 ppb (8) | 2.2 ppb (2) | N/A | 6.0 ppb (6) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Jan. 21, 2020, 9 a.m. | 7.0 ppb (6) | 1.2 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Jan. 21, 2020, 8 a.m. | 8.9 ppb (8) | 2.7 ppb (3) | N/A | 6.0 ppb (6) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 21, 2020, 7 a.m. | 7.1 ppb (7) | 1.5 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Jan. 21, 2020, 6 a.m. | 11.0 ppb (10) | 2.4 ppb (2) | N/A | 9.0 ppb (8) | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 26.0 μg/m3 (80) | 80.0 | |
| Jan. 21, 2020, 5 a.m. | 17.8 ppb (16) | 7.8 ppb (7) | N/A | 10.0 ppb (9) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 33.0 μg/m3 (95) | 95.0 | |
| Jan. 21, 2020, 4 a.m. | 13.6 ppb (13) | 4.0 ppb (4) | N/A | 10.0 ppb (9) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 24.0 μg/m3 (76) | 76.0 | |
| Jan. 21, 2020, 3 a.m. | 12.6 ppb (12) | 2.1 ppb (2) | N/A | 11.0 ppb (10) | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 30.0 μg/m3 (88) | 88.0 | |
| Jan. 21, 2020, 2 a.m. | 14.4 ppb (13) | 2.7 ppb (3) | N/A | 12.0 ppb (11) | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 33.0 μg/m3 (95) | 95.0 | |
| Jan. 21, 2020, 1 a.m. | 13.1 ppb (12) | 2.0 ppb (2) | N/A | 11.0 ppb (10) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 24.0 μg/m3 (76) | 76.0 | |
| Jan. 21, 2020, midnight | 10.4 ppb (10) | 1.5 ppb (1) | N/A | 9.0 ppb (8) | N/A | N/A | 5.0 ppb (4) | N/A | N/A | 26.0 μg/m3 (80) | 80.0 | |
| Jan. 20, 2020, 11 p.m. | 11.3 ppb (10) | 2.4 ppb (2) | N/A | 9.0 ppb (8) | N/A | N/A | 6.0 ppb (5) | N/A | N/A | 25.0 μg/m3 (78) | 78.0 | |
| Jan. 20, 2020, 10 p.m. | 11.2 ppb (10) | 3.1 ppb (3) | N/A | 8.0 ppb (7) | N/A | N/A | 6.0 ppb (5) | N/A | N/A | 25.0 μg/m3 (78) | 78.0 | |
| Jan. 20, 2020, 9 p.m. | 10.1 ppb (9) | 3.2 ppb (3) | N/A | 7.0 ppb (6) | N/A | N/A | 7.0 ppb (5) | N/A | N/A | 24.0 μg/m3 (76) | 76.0 | |
| Jan. 20, 2020, 8 p.m. | 10.3 ppb (10) | 3.1 ppb (3) | N/A | 7.0 ppb (6) | N/A | N/A | 6.0 ppb (5) | N/A | N/A | 27.0 μg/m3 (82) | 82.0 | |
| Jan. 20, 2020, 7 p.m. | 10.3 ppb (10) | 3.7 ppb (3) | N/A | 7.0 ppb (6) | N/A | N/A | 6.0 ppb (5) | N/A | N/A | 29.0 μg/m3 (86) | 86.0 | |
| Jan. 20, 2020, 6 p.m. | 18.3 ppb (17) | 9.3 ppb (9) | N/A | 9.0 ppb (8) | N/A | N/A | 4.0 ppb (3) | N/A | N/A | 34.0 μg/m3 (97) | 97.0 | |
| Jan. 20, 2020, 5 p.m. | 19.9 ppb (18) | 9.7 ppb (9) | N/A | 10.0 ppb (9) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 32.0 μg/m3 (93) | 93.0 | |
| Jan. 20, 2020, 4 p.m. | 9.2 ppb (9) | 1.8 ppb (2) | N/A | 7.0 ppb (6) | N/A | N/A | 3.0 ppb (2) | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Jan. 20, 2020, 3 p.m. | 8.0 ppb (7) | 0.9 ppb (1) | N/A | 7.0 ppb (6) | N/A | N/A | 4.0 ppb (3) | N/A | N/A | 17.0 μg/m3 (61) | 61.0 | |
| Jan. 20, 2020, 2 p.m. | 6.2 ppb (6) | 0.3 ppb (0) | N/A | 6.0 ppb (6) | N/A | N/A | 4.0 ppb (3) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Jan. 20, 2020, 1 p.m. | 4.7 ppb (4) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 8.0 ppb (6) | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Jan. 20, 2020, noon | 3.2 ppb (3) | -0.2 ppb (0) | N/A | 3.0 ppb (3) | N/A | N/A | 13.0 ppb (10) | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 20, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| Jan. 20, 2020, 10 a.m. | 4.7 ppb (4) | -0.2 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 11.0 ppb (8) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Jan. 20, 2020, 9 a.m. | 6.4 ppb (6) | 0.0 ppb (0) | N/A | 6.0 ppb (6) | N/A | N/A | 10.0 ppb (8) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Jan. 20, 2020, 8 a.m. | 7.1 ppb (7) | 1.4 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | 10.0 ppb (8) | N/A | N/A | 20.0 μg/m3 (67) | 67.0 | |
| Jan. 20, 2020, 7 a.m. | 12.0 ppb (11) | 0.7 ppb (1) | N/A | 11.0 ppb (10) | N/A | N/A | 4.0 ppb (3) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Jan. 20, 2020, 6 a.m. | 13.2 ppb (12) | 1.0 ppb (1) | N/A | 12.0 ppb (11) | N/A | N/A | 4.0 ppb (3) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Jan. 20, 2020, 5 a.m. | 8.6 ppb (8) | 0.1 ppb (0) | N/A | 8.0 ppb (7) | N/A | N/A | 7.0 ppb (5) | N/A | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 20, 2020, 4 a.m. | 6.6 ppb (6) | 0.1 ppb (0) | N/A | 7.0 ppb (6) | N/A | N/A | 12.0 ppb (9) | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| Jan. 20, 2020, 3 a.m. | 3.6 ppb (3) | -0.2 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 16.0 ppb (12) | N/A | N/A | 17.0 μg/m3 (61) | 61.0 | |
| Jan. 20, 2020, 2 a.m. | 5.3 ppb (5) | -0.1 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 13.0 ppb (10) | N/A | N/A | 17.0 μg/m3 (61) | 61.0 | |
| Jan. 20, 2020, 1 a.m. | 5.3 ppb (5) | -0.2 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 14.0 ppb (11) | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Jan. 20, 2020, midnight | 4.0 ppb (4) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 16.0 ppb (12) | N/A | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 19, 2020, 11 p.m. | 3.5 ppb (3) | 0.2 ppb (0) | N/A | 3.0 ppb (3) | N/A | N/A | 18.0 ppb (14) | N/A | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 19, 2020, 10 p.m. | 2.4 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | N/A | 20.0 ppb (15) | N/A | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 19, 2020, 9 p.m. | 2.0 ppb (2) | -0.3 ppb (0) | N/A | 2.0 ppb (2) | N/A | N/A | 21.0 ppb (16) | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Jan. 19, 2020, 8 p.m. | 3.4 ppb (3) | 0.3 ppb (0) | N/A | 3.0 ppb (3) | N/A | N/A | 19.0 ppb (15) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Jan. 19, 2020, 7 p.m. | 3.8 ppb (4) | 0.4 ppb (0) | N/A | 3.0 ppb (3) | N/A | N/A | 20.0 ppb (15) | N/A | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 19, 2020, 6 p.m. | 3.5 ppb (3) | 0.2 ppb (0) | N/A | 3.0 ppb (3) | N/A | N/A | 19.0 ppb (15) | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Jan. 19, 2020, 5 p.m. | 3.4 ppb (3) | 0.1 ppb (0) | N/A | 3.0 ppb (3) | N/A | N/A | 19.0 ppb (15) | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Jan. 19, 2020, 4 p.m. | 3.1 ppb (3) | -0.1 ppb (0) | N/A | 3.0 ppb (3) | N/A | N/A | 18.0 ppb (14) | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 19, 2020, 3 p.m. | 2.2 ppb (2) | -0.3 ppb (0) | N/A | 3.0 ppb (3) | N/A | N/A | 20.0 ppb (15) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 19, 2020, 2 p.m. | 3.9 ppb (4) | -0.1 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 16.0 ppb (12) | N/A | N/A | 23.0 μg/m3 (73) | 73.0 | |
| Jan. 19, 2020, 1 p.m. | 4.6 ppb (4) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 12.0 ppb (9) | N/A | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 19, 2020, noon | 4.1 ppb (4) | -0.1 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 12.0 ppb (9) | N/A | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 19, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 19, 2020, 10 a.m. | 4.0 ppb (4) | -0.2 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 13.0 ppb (10) | N/A | N/A | 23.0 μg/m3 (73) | 73.0 | |
| Jan. 19, 2020, 9 a.m. | 5.3 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 13.0 ppb (10) | N/A | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Jan. 19, 2020, 8 a.m. | 6.1 ppb (6) | 0.4 ppb (0) | N/A | 6.0 ppb (6) | N/A | N/A | 12.0 ppb (9) | N/A | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 19, 2020, 7 a.m. | 6.5 ppb (6) | 0.0 ppb (0) | N/A | 7.0 ppb (6) | N/A | N/A | 12.0 ppb (9) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Jan. 19, 2020, 6 a.m. | 9.9 ppb (9) | 1.0 ppb (1) | N/A | 9.0 ppb (8) | N/A | N/A | 9.0 ppb (7) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Jan. 19, 2020, 5 a.m. | 9.3 ppb (9) | 0.0 ppb (0) | N/A | 9.0 ppb (8) | N/A | N/A | 10.0 ppb (8) | N/A | N/A | 25.0 μg/m3 (78) | 78.0 | |
| Jan. 19, 2020, 4 a.m. | 7.3 ppb (7) | -0.4 ppb (0) | N/A | 8.0 ppb (7) | N/A | N/A | 13.0 ppb (10) | N/A | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Jan. 19, 2020, 3 a.m. | 7.3 ppb (7) | -0.4 ppb (0) | N/A | 8.0 ppb (7) | N/A | N/A | 14.0 ppb (11) | N/A | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 19, 2020, 2 a.m. | 8.4 ppb (8) | -0.1 ppb (0) | N/A | 9.0 ppb (8) | N/A | N/A | 15.0 ppb (12) | N/A | N/A | 26.0 μg/m3 (80) | 80.0 | |
| Jan. 19, 2020, 1 a.m. | 12.6 ppb (12) | 0.2 ppb (0) | N/A | 12.0 ppb (11) | N/A | N/A | 12.0 ppb (9) | N/A | N/A | 20.0 μg/m3 (67) | 67.0 | |
| Jan. 19, 2020, midnight | 12.5 ppb (12) | 1.3 ppb (1) | N/A | 11.0 ppb (10) | N/A | N/A | 14.0 ppb (11) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Jan. 18, 2020, 11 p.m. | 13.6 ppb (13) | 2.7 ppb (3) | N/A | 11.0 ppb (10) | N/A | N/A | 16.0 ppb (12) | N/A | N/A | 27.0 μg/m3 (82) | 82.0 | |
| Jan. 18, 2020, 10 p.m. | 11.8 ppb (11) | 2.1 ppb (2) | N/A | 10.0 ppb (9) | N/A | N/A | 16.0 ppb (12) | N/A | N/A | 20.0 μg/m3 (67) | 67.0 | |
| Jan. 18, 2020, 9 p.m. | 13.4 ppb (12) | 3.0 ppb (3) | N/A | 10.0 ppb (9) | N/A | N/A | 12.0 ppb (9) | N/A | N/A | 26.0 μg/m3 (80) | 80.0 | |
| Jan. 18, 2020, 8 p.m. | 13.1 ppb (12) | 3.2 ppb (3) | N/A | 10.0 ppb (9) | N/A | N/A | 11.0 ppb (8) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Jan. 18, 2020, 7 p.m. | 13.0 ppb (12) | 3.0 ppb (3) | N/A | 10.0 ppb (9) | N/A | N/A | 10.0 ppb (8) | N/A | N/A | 24.0 μg/m3 (76) | 76.0 | |
| Jan. 18, 2020, 6 p.m. | 9.0 ppb (8) | 1.7 ppb (2) | N/A | 7.0 ppb (6) | N/A | N/A | 14.0 ppb (11) | N/A | N/A | 20.0 μg/m3 (67) | 67.0 | |
| Jan. 18, 2020, 5 p.m. | 8.1 ppb (8) | 1.1 ppb (1) | N/A | 7.0 ppb (6) | N/A | N/A | 13.0 ppb (10) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Jan. 18, 2020, 4 p.m. | 7.1 ppb (7) | 0.4 ppb (0) | N/A | 7.0 ppb (6) | N/A | N/A | 14.0 ppb (11) | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Jan. 18, 2020, 3 p.m. | 6.6 ppb (6) | -0.1 ppb (0) | N/A | 7.0 ppb (6) | N/A | N/A | 12.0 ppb (9) | N/A | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 18, 2020, 2 p.m. | 4.6 ppb (4) | -0.4 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 13.0 ppb (10) | N/A | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 18, 2020, 1 p.m. | 6.0 ppb (6) | -0.3 ppb (0) | N/A | 6.0 ppb (6) | N/A | N/A | 11.0 ppb (8) | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| Jan. 18, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 18, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| Jan. 18, 2020, 10 a.m. | 7.1 ppb (7) | 0.1 ppb (0) | N/A | 7.0 ppb (6) | N/A | N/A | 4.0 ppb (3) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 18, 2020, 9 a.m. | 9.1 ppb (8) | 0.8 ppb (1) | N/A | 8.0 ppb (7) | N/A | N/A | 5.0 ppb (4) | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 18, 2020, 8 a.m. | 12.9 ppb (12) | 1.6 ppb (1) | N/A | 11.0 ppb (10) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 18, 2020, 7 a.m. | 14.3 ppb (13) | 2.5 ppb (2) | N/A | 12.0 ppb (11) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 25.0 μg/m3 (78) | 78.0 |