El Paso City Limits TX, US: 31.768056, -106.501111
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 22, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 26.0 μg/m3 (24) | 5.9 μg/m3 (25) | 32.0 | |
| Jan. 22, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 35.0 μg/m3 (32) | 5.4 μg/m3 (23) | 32.0 | |
| Jan. 22, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 μg/m3 (28) | 6.6 μg/m3 (28) | 28.0 | |
| Jan. 22, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 21.0 μg/m3 (19) | 5.6 μg/m3 (23) | 31.0 | |
| Jan. 22, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 17.0 μg/m3 (15) | 4.5 μg/m3 (19) | 32.0 | |
| Jan. 22, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | 10.0 μg/m3 (9) | 3.0 μg/m3 (12) | 32.0 | |
| Jan. 22, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 19.0 μg/m3 (17) | 3.6 μg/m3 (15) | 31.0 | |
| Jan. 22, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 24.0 μg/m3 (22) | 4.3 μg/m3 (18) | 32.0 | |
| Jan. 22, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | 24.0 μg/m3 (22) | 4.3 μg/m3 (18) | 32.0 | |
| Jan. 22, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | 26.0 μg/m3 (24) | 6.2 μg/m3 (26) | 29.0 | |
| Jan. 22, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 36.0 μg/m3 (33) | 7.8 μg/m3 (32) | 33.0 | |
| Jan. 22, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 48.0 μg/m3 (44) | 9.4 μg/m3 (39) | 44.0 | |
| Jan. 22, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | 102.0 μg/m3 (74) | 13.8 μg/m3 (54) | 74.0 | |
| Jan. 22, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 64.0 μg/m3 (54) | 8.0 μg/m3 (33) | 54.0 | |
| Jan. 22, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 53.0 μg/m3 (48) | 7.3 μg/m3 (30) | 48.0 | |
| Jan. 22, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 94.0 μg/m3 (70) | 11.0 μg/m3 (46) | 70.0 | |
| Jan. 22, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 92.0 μg/m3 (68) | 10.3 μg/m3 (43) | 68.0 | |
| Jan. 22, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 252.0 μg/m3 (148) | 20.5 μg/m3 (68) | 148.0 | |
| Jan. 21, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 186.0 μg/m3 (116) | 15.5 μg/m3 (57) | 116.0 | |
| Jan. 21, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | 156.0 μg/m3 (100) | 12.7 μg/m3 (51) | 100.0 | |
| Jan. 21, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 157.0 μg/m3 (101) | 7.9 μg/m3 (33) | 101.0 | |
| Jan. 21, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | 52.0 μg/m3 (47) | 7.8 μg/m3 (32) | 47.0 | |
| Jan. 21, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 34.0 μg/m3 (31) | 1.8 μg/m3 (8) | 31.0 | |
| Jan. 21, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | 37.0 μg/m3 (34) | 3.6 μg/m3 (15) | 34.0 | |
| Jan. 21, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (7) | N/A | 99.0 μg/m3 (72) | 19.5 μg/m3 (66) | 72.0 | |
| Jan. 21, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 ppb (5) | N/A | 86.0 μg/m3 (66) | 20.5 μg/m3 (68) | 68.0 | |
| Jan. 21, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (3) | N/A | 50.0 μg/m3 (45) | 12.5 μg/m3 (51) | 51.0 | |
| Jan. 21, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 34.0 μg/m3 (31) | 8.3 μg/m3 (35) | 35.0 | |
| Jan. 21, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | 29.0 μg/m3 (26) | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 21, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | 39.0 μg/m3 (35) | 11.7 μg/m3 (49) | 49.0 | |
| Jan. 21, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | 34.0 μg/m3 (31) | 11.5 μg/m3 (48) | 48.0 | |
| Jan. 21, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | 42.0 μg/m3 (38) | 12.3 μg/m3 (51) | 51.0 | |
| Jan. 21, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | 39.0 μg/m3 (35) | 11.9 μg/m3 (50) | 50.0 | |
| Jan. 21, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | 47.0 μg/m3 (43) | 14.0 μg/m3 (54) | 54.0 | |
| Jan. 21, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | 46.0 μg/m3 (42) | 12.8 μg/m3 (52) | 52.0 | |
| Jan. 21, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | 65.0 μg/m3 (55) | 18.0 μg/m3 (63) | 63.0 | |
| Jan. 21, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 87.0 μg/m3 (66) | 24.6 μg/m3 (77) | 77.0 | |
| Jan. 21, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (3) | N/A | 70.0 μg/m3 (58) | 19.8 μg/m3 (67) | 67.0 | |
| Jan. 21, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (3) | N/A | 62.0 μg/m3 (54) | 16.3 μg/m3 (59) | 59.0 | |
| Jan. 21, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (3) | N/A | 98.0 μg/m3 (72) | 27.6 μg/m3 (83) | 83.0 | |
| Jan. 21, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 ppb (10) | N/A | 51.0 μg/m3 (46) | 13.3 μg/m3 (53) | 53.0 | |
| Jan. 21, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 17.0 μg/m3 (15) | 4.7 μg/m3 (20) | 27.0 | |
| Jan. 20, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 12.0 μg/m3 (11) | 2.4 μg/m3 (10) | 32.0 | |
| Jan. 20, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | N/A | 13.0 μg/m3 (12) | 2.4 μg/m3 (10) | 33.0 | |
| Jan. 20, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 17.0 μg/m3 (15) | 2.7 μg/m3 (11) | 32.0 | |
| Jan. 20, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | N/A | 13.0 μg/m3 (12) | 2.3 μg/m3 (10) | 33.0 | |
| Jan. 20, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 21.0 μg/m3 (19) | 4.1 μg/m3 (17) | 30.0 | |
| Jan. 20, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 18.0 μg/m3 (16) | 3.3 μg/m3 (14) | 25.0 | |
| Jan. 20, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (12) | N/A | 23.0 μg/m3 (21) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 20, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 ppb (8) | N/A | 33.0 μg/m3 (30) | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 20, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | N/A | 29.0 μg/m3 (26) | 10.7 μg/m3 (45) | 45.0 | |
| Jan. 20, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 ppb (8) | N/A | 21.0 μg/m3 (19) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 20, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (12) | N/A | 16.0 μg/m3 (15) | 6.4 μg/m3 (27) | 27.0 | |
| Jan. 20, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (12) | N/A | 16.0 μg/m3 (15) | 5.1 μg/m3 (21) | 21.0 | |
| Jan. 20, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | 31.0 μg/m3 (28) | 10.4 μg/m3 (43) | 43.0 | |
| Jan. 20, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | 24.0 μg/m3 (22) | 9.9 μg/m3 (41) | 41.0 | |
| Jan. 20, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (4) | N/A | 19.0 μg/m3 (17) | 7.2 μg/m3 (30) | 30.0 | |
| Jan. 20, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | N/A | 22.0 μg/m3 (20) | 7.9 μg/m3 (33) | 33.0 | |
| Jan. 20, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 ppb (8) | N/A | 21.0 μg/m3 (19) | 8.4 μg/m3 (35) | 35.0 | |
| Jan. 20, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 ppb (10) | N/A | 17.0 μg/m3 (15) | 6.6 μg/m3 (28) | 28.0 | |
| Jan. 20, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | 14.0 μg/m3 (13) | 5.2 μg/m3 (22) | 22.0 | |
| Jan. 20, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 μg/m3 (15) | 5.8 μg/m3 (24) | 24.0 | |
| Jan. 20, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 15.0 μg/m3 (14) | 4.7 μg/m3 (20) | 28.0 | |
| Jan. 20, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 22.0 μg/m3 (20) | 7.9 μg/m3 (33) | 33.0 | |
| Jan. 20, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 ppb (8) | N/A | 66.0 μg/m3 (56) | 18.9 μg/m3 (65) | 65.0 | |
| Jan. 20, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 29.0 μg/m3 (26) | 6.5 μg/m3 (27) | 27.0 | |
| Jan. 19, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | N/A | 12.0 μg/m3 (11) | 3.5 μg/m3 (15) | 33.0 | |
| Jan. 19, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | N/A | 10.0 μg/m3 (9) | 6.8 μg/m3 (28) | 35.0 | |
| Jan. 19, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | N/A | 8.0 μg/m3 (7) | 2.2 μg/m3 (9) | 35.0 | |
| Jan. 19, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | N/A | 13.0 μg/m3 (12) | 3.0 μg/m3 (12) | 35.0 | |
| Jan. 19, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 24.0 μg/m3 (22) | 4.8 μg/m3 (20) | 30.0 | |
| Jan. 19, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | 20.0 μg/m3 (18) | 3.6 μg/m3 (15) | 22.0 | |
| Jan. 19, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (15) | N/A | 30.0 μg/m3 (27) | 9.7 μg/m3 (40) | 40.0 | |
| Jan. 19, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | N/A | 23.0 μg/m3 (21) | 7.5 μg/m3 (31) | 31.0 | |
| Jan. 19, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | 16.0 μg/m3 (15) | 5.3 μg/m3 (22) | 22.0 | |
| Jan. 19, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 ppb (11) | N/A | 16.0 μg/m3 (15) | 6.4 μg/m3 (27) | 27.0 | |
| Jan. 19, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 ppb (8) | N/A | 21.0 μg/m3 (19) | 6.7 μg/m3 (28) | 28.0 | |
| Jan. 19, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (12) | N/A | 20.0 μg/m3 (18) | 7.3 μg/m3 (30) | 30.0 | |
| Jan. 19, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | N/A | 14.0 μg/m3 (13) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 19, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | N/A | 18.0 μg/m3 (16) | 5.3 μg/m3 (22) | 22.0 | |
| Jan. 19, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | 20.0 μg/m3 (18) | 6.8 μg/m3 (28) | 28.0 | |
| Jan. 19, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 12.0 μg/m3 (11) | 5.2 μg/m3 (22) | 28.0 | |
| Jan. 19, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 10.0 μg/m3 (9) | 4.4 μg/m3 (18) | 30.0 | |
| Jan. 19, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | N/A | 11.0 μg/m3 (10) | 4.2 μg/m3 (18) | 33.0 | |
| Jan. 19, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | N/A | 23.0 μg/m3 (21) | 4.9 μg/m3 (20) | 35.0 | |
| Jan. 19, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | 16.0 μg/m3 (15) | 4.5 μg/m3 (19) | 32.0 | |
| Jan. 19, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | 29.0 μg/m3 (26) | 5.2 μg/m3 (22) | 31.0 | |
| Jan. 19, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | 31.0 μg/m3 (28) | 6.5 μg/m3 (27) | 29.0 | |
| Jan. 19, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 35.0 μg/m3 (32) | 5.9 μg/m3 (25) | 32.0 | |
| Jan. 19, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 48.0 μg/m3 (44) | 7.5 μg/m3 (31) | 44.0 | |
| Jan. 18, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | 67.0 μg/m3 (56) | 6.9 μg/m3 (29) | 56.0 | |
| Jan. 18, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 91.0 μg/m3 (68) | 11.5 μg/m3 (48) | 68.0 | |
| Jan. 18, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | N/A | 166.0 μg/m3 (106) | 14.7 μg/m3 (56) | 106.0 | |
| Jan. 18, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 218.0 μg/m3 (132) | 12.6 μg/m3 (51) | 132.0 | |
| Jan. 18, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 118.0 μg/m3 (82) | 6.5 μg/m3 (27) | 82.0 | |
| Jan. 18, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | 357.0 μg/m3 (203) | 11.6 μg/m3 (48) | 203.0 | |
| Jan. 18, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | 154.0 μg/m3 (100) | 6.3 μg/m3 (26) | 100.0 | |
| Jan. 18, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | N/A | 28.0 μg/m3 (25) | 7.3 μg/m3 (30) | 30.0 | |
| Jan. 18, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (15) | N/A | 21.0 μg/m3 (19) | 6.1 μg/m3 (25) | 25.0 | |
| Jan. 18, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | N/A | 18.0 μg/m3 (16) | 5.5 μg/m3 (23) | 23.0 | |
| Jan. 18, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (12) | N/A | 14.0 μg/m3 (13) | 5.4 μg/m3 (23) | 23.0 | |
| Jan. 18, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | N/A | 13.0 μg/m3 (12) | 5.2 μg/m3 (22) | 22.0 | |
| Jan. 18, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | 13.0 μg/m3 (12) | 3.3 μg/m3 (14) | 18.0 | |
| Jan. 18, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | 14.0 μg/m3 (13) | 3.5 μg/m3 (15) | 18.0 | |
| Jan. 18, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | N/A | 13.0 μg/m3 (12) | 4.2 μg/m3 (18) | 18.0 | |
| Jan. 18, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (15) | N/A | 14.0 μg/m3 (13) | 4.3 μg/m3 (18) | 18.0 | |
| Jan. 18, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (13) | N/A | 15.0 μg/m3 (14) | 4.1 μg/m3 (17) | 17.0 | |
| Jan. 18, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (12) | N/A | 28.0 μg/m3 (25) | 8.2 μg/m3 (34) | 34.0 | |
| Jan. 18, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | 59.0 μg/m3 (52) | 17.3 μg/m3 (61) | 61.0 | |
| Jan. 18, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | 61.0 μg/m3 (53) | 16.7 μg/m3 (60) | 60.0 | |
| Jan. 18, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | 52.0 μg/m3 (47) | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 18, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (12) | N/A | 19.0 μg/m3 (17) | 5.6 μg/m3 (23) | 23.0 | |
| Jan. 18, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (12) | N/A | 43.0 μg/m3 (39) | 9.3 μg/m3 (39) | 39.0 | |
| Jan. 18, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | 45.0 μg/m3 (41) | 9.3 μg/m3 (39) | 41.0 | |
| Jan. 17, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | 42.0 μg/m3 (38) | 8.0 μg/m3 (33) | 38.0 | |
| Jan. 17, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | 34.0 μg/m3 (31) | 6.6 μg/m3 (28) | 32.0 | |
| Jan. 17, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | 35.0 μg/m3 (32) | 6.2 μg/m3 (26) | 32.0 | |
| Jan. 17, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | 23.0 μg/m3 (21) | 4.4 μg/m3 (18) | 24.0 | |
| Jan. 17, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (12) | N/A | 36.0 μg/m3 (33) | 5.2 μg/m3 (22) | 33.0 | |
| Jan. 17, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (7) | N/A | 55.0 μg/m3 (50) | 11.2 μg/m3 (47) | 50.0 | |
| Jan. 17, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | N/A | 40.0 μg/m3 (36) | 10.7 μg/m3 (45) | 45.0 | |
| Jan. 17, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | N/A | 24.0 μg/m3 (22) | 6.9 μg/m3 (29) | 29.0 | |
| Jan. 17, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 ppb (5) | N/A | 34.0 μg/m3 (31) | 8.6 μg/m3 (36) | 36.0 | |
| Jan. 17, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (3) | N/A | 25.0 μg/m3 (23) | 6.5 μg/m3 (27) | 27.0 | |
| Jan. 17, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (2) | N/A | 18.0 μg/m3 (16) | 5.8 μg/m3 (24) | 24.0 | |
| Jan. 17, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (7) | N/A | 14.0 μg/m3 (13) | 5.6 μg/m3 (23) | 23.0 | |
| Jan. 17, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 ppb (8) | N/A | 13.0 μg/m3 (12) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 17, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (12) | N/A | 15.0 μg/m3 (14) | 4.8 μg/m3 (20) | 20.0 | |
| Jan. 17, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (13) | N/A | 15.0 μg/m3 (14) | 5.3 μg/m3 (22) | 22.0 | |
| Jan. 17, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | 11.0 μg/m3 (10) | 4.8 μg/m3 (20) | 20.0 | |
| Jan. 17, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | 12.0 μg/m3 (11) | 4.2 μg/m3 (18) | 25.0 | |
| Jan. 17, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | 12.0 μg/m3 (11) | 3.9 μg/m3 (16) | 25.0 | |
| Jan. 17, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | N/A | 15.0 μg/m3 (14) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 17, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | 10.0 μg/m3 (9) | 4.5 μg/m3 (19) | 24.0 | |
| Jan. 17, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | 14.0 μg/m3 (13) | 4.7 μg/m3 (20) | 20.0 | |
| Jan. 17, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | N/A | 15.0 μg/m3 (14) | 4.7 μg/m3 (20) | 20.0 | |
| Jan. 17, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | 20.0 μg/m3 (18) | 7.3 μg/m3 (30) | 30.0 | |
| Jan. 17, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 ppb (11) | N/A | 41.0 μg/m3 (37) | 9.5 μg/m3 (40) | 40.0 | |
| Jan. 16, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | 30.0 μg/m3 (27) | 5.7 μg/m3 (24) | 27.0 | |
| Jan. 16, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | 16.0 μg/m3 (15) | 3.6 μg/m3 (15) | 25.0 | |
| Jan. 16, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | 16.0 μg/m3 (15) | 3.8 μg/m3 (16) | 24.0 | |
| Jan. 16, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 21.0 μg/m3 (19) | 3.8 μg/m3 (16) | 23.0 | |
| Jan. 16, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | 29.0 μg/m3 (26) | 2.9 μg/m3 (12) | 26.0 | |
| Jan. 16, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | 18.0 μg/m3 (16) | 4.5 μg/m3 (19) | 21.0 | |
| Jan. 16, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (12) | N/A | 33.0 μg/m3 (30) | 8.6 μg/m3 (36) | 36.0 | |
| Jan. 16, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (6) | N/A | 50.0 μg/m3 (45) | 12.8 μg/m3 (52) | 52.0 | |
| Jan. 16, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 ppb (5) | N/A | 37.0 μg/m3 (34) | 9.6 μg/m3 (40) | 40.0 | |
| Jan. 16, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 ppb (8) | N/A | 21.0 μg/m3 (19) | 6.5 μg/m3 (27) | 27.0 | |
| Jan. 16, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | N/A | 12.0 μg/m3 (11) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 16, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | N/A | 15.0 μg/m3 (14) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 16, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | N/A | 40.0 μg/m3 (36) | 11.2 μg/m3 (47) | 47.0 | |
| Jan. 16, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | 63.0 μg/m3 (54) | 16.7 μg/m3 (60) | 60.0 | |
| Jan. 16, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (2) | N/A | 49.0 μg/m3 (45) | 12.8 μg/m3 (52) | 52.0 | |
| Jan. 16, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | 46.0 μg/m3 (42) | 10.9 μg/m3 (45) | 45.0 | |
| Jan. 16, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | 88.0 μg/m3 (66) | 19.7 μg/m3 (66) | 66.0 | |
| Jan. 16, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 159.0 μg/m3 (102) | 45.0 μg/m3 (124) | 124.0 | |
| Jan. 16, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | 106.0 μg/m3 (76) | 26.6 μg/m3 (81) | 81.0 | |
| Jan. 16, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 131.0 μg/m3 (88) | 35.9 μg/m3 (101) | 101.0 | |
| Jan. 16, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | 55.0 μg/m3 (50) | 12.8 μg/m3 (52) | 52.0 | |
| Jan. 16, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | 122.0 μg/m3 (84) | 35.4 μg/m3 (100) | 100.0 | |
| Jan. 16, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (2) | N/A | 85.0 μg/m3 (65) | 18.0 μg/m3 (63) | 65.0 | |
| Jan. 16, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | 20.0 μg/m3 (18) | 6.4 μg/m3 (27) | 27.0 | |
| Jan. 15, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | N/A | 17.0 μg/m3 (15) | 5.3 μg/m3 (22) | 29.0 | |
| Jan. 15, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | 16.0 μg/m3 (15) | 4.3 μg/m3 (18) | 32.0 | |
| Jan. 15, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | 34.0 μg/m3 (31) | 7.4 μg/m3 (31) | 31.0 | |
| Jan. 15, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | N/A | 42.0 μg/m3 (38) | 10.2 μg/m3 (42) | 42.0 | |
| Jan. 15, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | 31.0 μg/m3 (28) | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 15, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | N/A | 21.0 μg/m3 (19) | 5.6 μg/m3 (23) | 23.0 |