León (Blvd Adolfo Lopez Mateos) MX, MX: 21.101789, -101.6347
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 23, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | 0.82 ppb (9) | 38.0 μg/m3 (35) | N/A | 35.0 | |
| Jan. 23, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | 0.93 ppb (10) | 53.0 μg/m3 (48) | N/A | 48.0 | |
| Jan. 23, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | 0.82 ppb (9) | 46.0 μg/m3 (42) | N/A | 42.0 | |
| Jan. 23, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | 0.9 ppb (10) | 50.0 μg/m3 (45) | N/A | 45.0 | |
| Jan. 23, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | 0.9 ppb (10) | 64.0 μg/m3 (54) | N/A | 54.0 | |
| Jan. 23, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | 1.17 ppb (13) | 58.0 μg/m3 (52) | N/A | 52.0 | |
| Jan. 23, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | 1.15 ppb (13) | 51.0 μg/m3 (46) | N/A | 46.0 | |
| Jan. 23, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | 1.14 ppb (13) | 67.0 μg/m3 (56) | N/A | 56.0 | |
| Jan. 23, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 ppb (9) | 1.6 ppb (18) | 77.0 μg/m3 (61) | N/A | 61.0 | |
| Jan. 23, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 1.44 ppb (16) | 47.0 μg/m3 (43) | N/A | 43.0 | |
| Jan. 23, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | 0.85 ppb (9) | 43.0 μg/m3 (39) | N/A | 39.0 | |
| Jan. 23, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | 0.82 ppb (9) | 37.0 μg/m3 (34) | N/A | 34.0 | |
| Jan. 23, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 ppb (11) | 0.87 ppb (10) | 47.0 μg/m3 (43) | N/A | 43.0 | |
| Jan. 23, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (12) | 0.92 ppb (10) | 35.0 μg/m3 (32) | N/A | 32.0 | |
| Jan. 23, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | 0.71 ppb (8) | 42.0 μg/m3 (38) | N/A | 38.0 | |
| Jan. 23, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | 0.74 ppb (8) | 43.0 μg/m3 (39) | N/A | 39.0 | |
| Jan. 23, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | 0.84 ppb (9) | 54.0 μg/m3 (49) | N/A | 49.0 | |
| Jan. 23, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (12) | 1.11 ppb (12) | 71.0 μg/m3 (58) | N/A | 58.0 | |
| Jan. 23, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 ppb (8) | 1.13 ppb (13) | 65.0 μg/m3 (55) | N/A | 55.0 | |
| Jan. 23, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (15) | 1.01 ppb (11) | 72.0 μg/m3 (58) | N/A | 58.0 | |
| Jan. 23, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | 1.26 ppb (14) | 73.0 μg/m3 (59) | N/A | 59.0 | |
| Jan. 23, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | 1.25 ppb (14) | 63.0 μg/m3 (54) | N/A | 54.0 | |
| Jan. 23, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | 1.04 ppb (12) | 48.0 μg/m3 (44) | N/A | 44.0 | |
| Jan. 23, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | 0.93 ppb (10) | 57.0 μg/m3 (51) | N/A | 51.0 | |
| Jan. 22, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | 0.75 ppb (8) | 67.0 μg/m3 (56) | N/A | 56.0 | |
| Jan. 22, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | 0.81 ppb (9) | 58.0 μg/m3 (52) | N/A | 52.0 | |
| Jan. 22, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (41) | 0.81 ppb (9) | 47.0 μg/m3 (43) | N/A | 43.0 | |
| Jan. 22, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (45) | 0.91 ppb (10) | 47.0 μg/m3 (43) | N/A | 45.0 | |
| Jan. 22, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (43) | 0.89 ppb (10) | 59.0 μg/m3 (52) | N/A | 52.0 | |
| Jan. 22, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | 1.07 ppb (12) | 91.0 μg/m3 (68) | N/A | 68.0 | |
| Jan. 22, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | 1.23 ppb (14) | 159.0 μg/m3 (102) | N/A | 102.0 | |
| Jan. 22, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | 1.63 ppb (18) | 190.0 μg/m3 (118) | N/A | 118.0 | |
| Jan. 22, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 ppb (8) | 3.41 ppb (38) | 100.0 μg/m3 (72) | N/A | 72.0 | |
| Jan. 22, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 1.85 ppb (21) | 61.0 μg/m3 (53) | N/A | 53.0 | |
| Jan. 22, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 ppb (9) | 1.29 ppb (14) | 59.0 μg/m3 (52) | N/A | 52.0 | |
| Jan. 22, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 ppb (9) | 1.16 ppb (13) | 40.0 μg/m3 (36) | N/A | 36.0 | |
| Jan. 22, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 ppb (11) | 0.99 ppb (11) | 33.0 μg/m3 (30) | N/A | 30.0 | |
| Jan. 22, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | 0.96 ppb (11) | 65.0 μg/m3 (55) | N/A | 55.0 | |
| Jan. 22, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (12) | 1.13 ppb (13) | 108.0 μg/m3 (76) | N/A | 76.0 | |
| Jan. 22, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (6) | 1.5 ppb (17) | 119.0 μg/m3 (82) | N/A | 82.0 | |
| Jan. 22, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (6) | 1.53 ppb (17) | 103.0 μg/m3 (74) | N/A | 74.0 | |
| Jan. 22, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 ppb (8) | 1.76 ppb (20) | 151.0 μg/m3 (98) | N/A | 98.0 | |
| Jan. 22, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (7) | 1.72 ppb (19) | 127.0 μg/m3 (86) | N/A | 86.0 | |
| Jan. 22, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (6) | 1.79 ppb (20) | 165.0 μg/m3 (105) | N/A | 105.0 | |
| Jan. 22, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (6) | 2.45 ppb (27) | 235.0 μg/m3 (140) | N/A | 140.0 | |
| Jan. 22, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (7) | 2.1 ppb (23) | 113.0 μg/m3 (79) | N/A | 79.0 | |
| Jan. 22, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | 1.01 ppb (11) | 44.0 μg/m3 (40) | N/A | 40.0 | |
| Jan. 22, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 ppb (42) | 0.99 ppb (11) | 42.0 μg/m3 (38) | N/A | 42.0 | |
| Jan. 21, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | 0.83 ppb (9) | 46.0 μg/m3 (42) | N/A | 42.0 | |
| Jan. 21, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (41) | 0.86 ppb (10) | 42.0 μg/m3 (38) | N/A | 41.0 | |
| Jan. 21, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 ppb (42) | 0.91 ppb (10) | 39.0 μg/m3 (35) | N/A | 42.0 | |
| Jan. 21, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | 0.86 ppb (10) | 60.0 μg/m3 (52) | N/A | 52.0 | |
| Jan. 21, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (38) | 1.0 ppb (11) | 62.0 μg/m3 (54) | N/A | 54.0 | |
| Jan. 21, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | 1.03 ppb (11) | 120.0 μg/m3 (82) | N/A | 82.0 | |
| Jan. 21, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | 1.61 ppb (18) | 97.0 μg/m3 (71) | N/A | 71.0 | |
| Jan. 21, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (12) | 2.07 ppb (23) | 146.0 μg/m3 (96) | N/A | 96.0 | |
| Jan. 21, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (7) | 2.33 ppb (26) | 109.0 μg/m3 (77) | N/A | 77.0 | |
| Jan. 21, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 2.03 ppb (23) | 65.0 μg/m3 (55) | N/A | 55.0 | |
| Jan. 21, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 1.54 ppb (17) | 37.0 μg/m3 (34) | N/A | 34.0 | |
| Jan. 21, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 1.01 ppb (11) | 39.0 μg/m3 (35) | N/A | 35.0 | |
| Jan. 21, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 1.07 ppb (12) | 42.0 μg/m3 (38) | N/A | 38.0 | |
| Jan. 21, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 0.96 ppb (11) | 69.0 μg/m3 (57) | N/A | 57.0 | |
| Jan. 21, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 1.3 ppb (14) | 73.0 μg/m3 (59) | N/A | 59.0 | |
| Jan. 21, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 1.24 ppb (14) | 82.0 μg/m3 (64) | N/A | 64.0 | |
| Jan. 21, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 1.22 ppb (14) | 111.0 μg/m3 (78) | N/A | 78.0 | |
| Jan. 21, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (6) | 2.49 ppb (28) | 88.0 μg/m3 (66) | N/A | 66.0 | |
| Jan. 21, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (6) | 2.4 ppb (27) | 91.0 μg/m3 (68) | N/A | 68.0 | |
| Jan. 21, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (6) | 1.89 ppb (21) | 47.0 μg/m3 (43) | N/A | 43.0 | |
| Jan. 21, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | 0.96 ppb (11) | 71.0 μg/m3 (58) | N/A | 58.0 | |
| Jan. 21, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | 0.87 ppb (10) | 47.0 μg/m3 (43) | N/A | 43.0 | |
| Jan. 21, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | 1.19 ppb (13) | 27.0 μg/m3 (25) | N/A | 25.0 | |
| Jan. 21, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | 0.95 ppb (11) | 33.0 μg/m3 (30) | N/A | 30.0 | |
| Jan. 20, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | 0.86 ppb (10) | 53.0 μg/m3 (48) | N/A | 48.0 | |
| Jan. 20, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | 0.88 ppb (10) | 40.0 μg/m3 (36) | N/A | 36.0 | |
| Jan. 20, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | 0.92 ppb (10) | 44.0 μg/m3 (40) | N/A | 40.0 | |
| Jan. 20, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | 0.9 ppb (10) | 47.0 μg/m3 (43) | N/A | 43.0 | |
| Jan. 20, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | 0.93 ppb (10) | 50.0 μg/m3 (45) | N/A | 45.0 | |
| Jan. 20, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | 0.99 ppb (11) | 46.0 μg/m3 (42) | N/A | 42.0 | |
| Jan. 20, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | 0.97 ppb (11) | 41.0 μg/m3 (37) | N/A | 37.0 | |
| Jan. 20, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | 0.93 ppb (10) | 45.0 μg/m3 (41) | N/A | 41.0 | |
| Jan. 20, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | 1.01 ppb (11) | 38.0 μg/m3 (35) | N/A | 35.0 | |
| Jan. 20, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 ppb (9) | 1.04 ppb (12) | 28.0 μg/m3 (25) | N/A | 25.0 | |
| Jan. 20, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | 0.79 ppb (9) | 27.0 μg/m3 (25) | N/A | 25.0 | |
| Jan. 20, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | 0.7 ppb (8) | 29.0 μg/m3 (26) | N/A | 26.0 | |
| Jan. 20, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | 0.62 ppb (7) | 39.0 μg/m3 (35) | N/A | 35.0 | |
| Jan. 20, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | 0.69 ppb (8) | 37.0 μg/m3 (34) | N/A | 34.0 | |
| Jan. 20, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (13) | 0.72 ppb (8) | 46.0 μg/m3 (42) | N/A | 42.0 | |
| Jan. 20, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | 0.78 ppb (9) | 72.0 μg/m3 (58) | N/A | 58.0 | |
| Jan. 20, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (7) | 1.17 ppb (13) | 32.0 μg/m3 (29) | N/A | 29.0 | |
| Jan. 20, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (15) | 0.97 ppb (11) | 39.0 μg/m3 (35) | N/A | 35.0 | |
| Jan. 20, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | 0.92 ppb (10) | 48.0 μg/m3 (44) | N/A | 44.0 | |
| Jan. 20, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | 1.0 ppb (11) | 107.0 μg/m3 (76) | N/A | 76.0 | |
| Jan. 20, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (7) | 1.6 ppb (18) | 97.0 μg/m3 (71) | N/A | 71.0 | |
| Jan. 20, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 ppb (8) | 1.67 ppb (19) | 41.0 μg/m3 (37) | N/A | 37.0 | |
| Jan. 20, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | 1.26 ppb (14) | 24.0 μg/m3 (22) | N/A | 22.0 | |
| Jan. 20, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | 1.05 ppb (12) | 29.0 μg/m3 (26) | N/A | 29.0 | |
| Jan. 19, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | 0.99 ppb (11) | 34.0 μg/m3 (31) | N/A | 32.0 | |
| Jan. 19, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (41) | 1.09 ppb (12) | 35.0 μg/m3 (32) | N/A | 41.0 | |
| Jan. 19, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 ppb (41) | 1.04 ppb (12) | 35.0 μg/m3 (32) | N/A | 41.0 | |
| Jan. 19, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | 0.89 ppb (10) | 24.0 μg/m3 (22) | N/A | 39.0 | |
| Jan. 19, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | 0.96 ppb (11) | 42.0 μg/m3 (38) | N/A | 38.0 | |
| Jan. 19, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | 1.1 ppb (12) | 72.0 μg/m3 (58) | N/A | 58.0 | |
| Jan. 19, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | 1.34 ppb (15) | 129.0 μg/m3 (87) | N/A | 87.0 | |
| Jan. 19, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 ppb (11) | 2.33 ppb (26) | 200.0 μg/m3 (122) | N/A | 122.0 | |
| Jan. 19, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (6) | 3.81 ppb (42) | 121.0 μg/m3 (83) | N/A | 83.0 | |
| Jan. 19, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 2.85 ppb (32) | 44.0 μg/m3 (40) | N/A | 40.0 | |
| Jan. 19, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 ppb (8) | 1.32 ppb (15) | 38.0 μg/m3 (35) | N/A | 35.0 | |
| Jan. 19, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (7) | 1.06 ppb (12) | 45.0 μg/m3 (41) | N/A | 41.0 | |
| Jan. 19, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (7) | 1.06 ppb (12) | 48.0 μg/m3 (44) | N/A | 44.0 | |
| Jan. 19, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 1.12 ppb (12) | 44.0 μg/m3 (40) | N/A | 40.0 | |
| Jan. 19, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (6) | 1.1 ppb (12) | 51.0 μg/m3 (46) | N/A | 46.0 | |
| Jan. 19, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 1.01 ppb (11) | 72.0 μg/m3 (58) | N/A | 58.0 | |
| Jan. 19, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 1.26 ppb (14) | 82.0 μg/m3 (64) | N/A | 64.0 | |
| Jan. 19, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 1.89 ppb (21) | 101.0 μg/m3 (73) | N/A | 73.0 | |
| Jan. 19, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 1.86 ppb (21) | 96.0 μg/m3 (70) | N/A | 70.0 | |
| Jan. 19, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 2.05 ppb (23) | 85.0 μg/m3 (65) | N/A | 65.0 | |
| Jan. 19, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (6) | 1.37 ppb (15) | 50.0 μg/m3 (45) | N/A | 45.0 | |
| Jan. 19, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 ppb (8) | 1.87 ppb (21) | 57.0 μg/m3 (51) | N/A | 51.0 | |
| Jan. 19, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 ppb (9) | 1.91 ppb (21) | 42.0 μg/m3 (38) | N/A | 38.0 | |
| Jan. 19, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | 1.49 ppb (17) | 40.0 μg/m3 (36) | N/A | 36.0 | |
| Jan. 18, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | 1.12 ppb (12) | 34.0 μg/m3 (31) | N/A | 31.0 | |
| Jan. 18, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | 0.98 ppb (11) | 53.0 μg/m3 (48) | N/A | 48.0 | |
| Jan. 18, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | 0.97 ppb (11) | 50.0 μg/m3 (45) | N/A | 45.0 | |
| Jan. 18, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | 0.97 ppb (11) | 46.0 μg/m3 (42) | N/A | 42.0 | |
| Jan. 18, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | 1.04 ppb (12) | 52.0 μg/m3 (47) | N/A | 47.0 | |
| Jan. 18, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | 0.97 ppb (11) | 60.0 μg/m3 (52) | N/A | 52.0 | |
| Jan. 18, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | 1.03 ppb (11) | 65.0 μg/m3 (55) | N/A | 55.0 | |
| Jan. 18, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | 1.15 ppb (13) | 74.0 μg/m3 (60) | N/A | 60.0 | |
| Jan. 18, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 ppb (8) | 1.8 ppb (20) | 56.0 μg/m3 (50) | N/A | 50.0 | |
| Jan. 18, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (6) | 1.57 ppb (17) | 41.0 μg/m3 (37) | N/A | 37.0 | |
| Jan. 18, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 ppb (11) | 1.13 ppb (13) | 31.0 μg/m3 (28) | N/A | 28.0 | |
| Jan. 18, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (12) | 0.84 ppb (9) | 29.0 μg/m3 (26) | N/A | 26.0 | |
| Jan. 18, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | 0.73 ppb (8) | 25.0 μg/m3 (23) | N/A | 23.0 | |
| Jan. 18, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | 0.72 ppb (8) | 29.0 μg/m3 (26) | N/A | 26.0 | |
| Jan. 18, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (15) | 0.74 ppb (8) | 25.0 μg/m3 (23) | N/A | 23.0 | |
| Jan. 18, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | 0.8 ppb (9) | 28.0 μg/m3 (25) | N/A | 25.0 | |
| Jan. 18, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | 0.88 ppb (10) | 39.0 μg/m3 (35) | N/A | 35.0 | |
| Jan. 18, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | 1.08 ppb (12) | 33.0 μg/m3 (30) | N/A | 30.0 | |
| Jan. 18, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | 0.85 ppb (9) | 40.0 μg/m3 (36) | N/A | 36.0 | |
| Jan. 18, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 ppb (22) | 0.97 ppb (11) | 43.0 μg/m3 (39) | N/A | 39.0 | |
| Jan. 18, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (22) | 1.15 ppb (13) | 58.0 μg/m3 (52) | N/A | 52.0 | |
| Jan. 18, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | 1.42 ppb (16) | 68.0 μg/m3 (56) | N/A | 56.0 | |
| Jan. 18, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 ppb (20) | 1.49 ppb (17) | 63.0 μg/m3 (54) | N/A | 54.0 | |
| Jan. 18, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | 1.0 ppb (11) | 70.0 μg/m3 (58) | N/A | 58.0 | |
| Jan. 17, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | 0.83 ppb (9) | 55.0 μg/m3 (50) | N/A | 50.0 | |
| Jan. 17, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 ppb (45) | 0.99 ppb (11) | 54.0 μg/m3 (49) | N/A | 49.0 | |
| Jan. 17, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 59.0 ppb (45) | 1.04 ppb (12) | 47.0 μg/m3 (43) | N/A | 45.0 | |
| Jan. 17, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 ppb (43) | 0.93 ppb (10) | 43.0 μg/m3 (39) | N/A | 43.0 | |
| Jan. 17, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | 0.93 ppb (10) | 46.0 μg/m3 (42) | N/A | 42.0 | |
| Jan. 17, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | 0.97 ppb (11) | 82.0 μg/m3 (64) | N/A | 64.0 | |
| Jan. 17, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | 1.29 ppb (14) | 220.0 μg/m3 (132) | N/A | 132.0 | |
| Jan. 17, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 ppb (8) | 2.65 ppb (29) | 132.0 μg/m3 (88) | N/A | 88.0 | |
| Jan. 17, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 2.44 ppb (27) | 60.0 μg/m3 (52) | N/A | 52.0 | |
| Jan. 17, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 ppb (5) | 1.55 ppb (17) | 51.0 μg/m3 (46) | N/A | 46.0 | |
| Jan. 17, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 1.03 ppb (11) | 55.0 μg/m3 (50) | N/A | 50.0 | |
| Jan. 17, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 1.13 ppb (13) | 41.0 μg/m3 (37) | N/A | 37.0 | |
| Jan. 17, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 ppb (8) | 0.87 ppb (10) | 47.0 μg/m3 (43) | N/A | 43.0 | |
| Jan. 17, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 0.96 ppb (11) | 59.0 μg/m3 (52) | N/A | 52.0 | |
| Jan. 17, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 1.04 ppb (12) | 65.0 μg/m3 (55) | N/A | 55.0 | |
| Jan. 17, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (7) | 1.01 ppb (11) | 74.0 μg/m3 (60) | N/A | 60.0 | |
| Jan. 17, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 1.15 ppb (13) | 77.0 μg/m3 (61) | N/A | 61.0 | |
| Jan. 17, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 1.71 ppb (19) | 69.0 μg/m3 (57) | N/A | 57.0 | |
| Jan. 17, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | 1.19 ppb (13) | 40.0 μg/m3 (36) | N/A | 36.0 | |
| Jan. 16, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | 1.05 ppb (12) | 33.0 μg/m3 (30) | N/A | 32.0 | |
| Jan. 16, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 ppb (35) | 0.87 ppb (10) | 30.0 μg/m3 (27) | N/A | 35.0 | |
| Jan. 16, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | 0.85 ppb (9) | 39.0 μg/m3 (35) | N/A | 35.0 | |
| Jan. 16, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | 0.8 ppb (9) | 53.0 μg/m3 (48) | N/A | 48.0 | |
| Jan. 16, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | 0.99 ppb (11) | 69.0 μg/m3 (57) | N/A | 57.0 |