Naperville IL, US: 41.7714, -88.1522
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| July 23, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 μg/m3 (86) | 86.0 | |
| July 23, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.3 μg/m3 (35) | 35.0 | |
| July 23, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.8 μg/m3 (41) | 41.0 | |
| July 22, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.2 μg/m3 (38) | 38.0 | |
| July 22, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.4 μg/m3 (35) | 35.0 | |
| July 22, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.1 μg/m3 (30) | 30.0 | |
| July 22, 2019, 8 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 | |
| July 22, 2019, 7 p.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 | |
| July 22, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.5 μg/m3 (23) | 23.0 | |
| July 22, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.4 μg/m3 (31) | 31.0 | |
| July 22, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.3 μg/m3 (18) | 18.0 | |
| July 22, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (29) | 29.0 | |
| July 22, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.2 μg/m3 (5) | 5.0 | |
| July 22, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | -0.2 μg/m3 (0) | N/A | |
| July 22, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | N/A | |
| July 22, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.4 μg/m3 (14) | 14.0 | |
| July 22, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | -2.3 μg/m3 (0) | N/A | |
| July 22, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 μg/m3 (67) | 67.0 | |
| July 22, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 37.7 μg/m3 (106) | 106.0 | |
| July 22, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.9 μg/m3 (29) | 29.0 | |
| July 22, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.5 μg/m3 (27) | 27.0 | |
| July 18, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.2 μg/m3 (13) | 13.0 | |
| July 18, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.4 μg/m3 (18) | 18.0 | |
| July 18, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.4 μg/m3 (51) | 51.0 | |
| July 18, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.3 μg/m3 (53) | 53.0 | |
| July 18, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.6 μg/m3 (60) | 60.0 | |
| July 18, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.1 μg/m3 (67) | 67.0 | |
| July 18, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.5 μg/m3 (64) | 64.0 | |
| July 18, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 μg/m3 (73) | 73.0 | |
| July 18, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 μg/m3 (78) | 78.0 | |
| July 18, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.1 μg/m3 (69) | 69.0 | |
| July 18, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.7 μg/m3 (69) | 69.0 | |
| July 18, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 25.4 μg/m3 (79) | 79.0 | |
| July 18, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.9 μg/m3 (56) | 56.0 | |
| July 17, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.5 μg/m3 (60) | 60.0 | |
| July 17, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.3 μg/m3 (59) | 59.0 | |
| July 17, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.7 μg/m3 (28) | 28.0 | |
| July 17, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.8 μg/m3 (20) | 20.0 | |
| July 17, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.1 μg/m3 (30) | 30.0 | |
| July 17, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.1 μg/m3 (21) | 21.0 | |
| July 17, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.8 μg/m3 (16) | 16.0 | |
| July 17, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.8 μg/m3 (24) | 24.0 | |
| July 17, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.1 μg/m3 (30) | 30.0 | |
| July 17, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.2 μg/m3 (53) | 53.0 | |
| July 17, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.8 μg/m3 (24) | 24.0 | |
| July 17, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.7 μg/m3 (40) | 40.0 | |
| July 17, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.3 μg/m3 (43) | 43.0 | |
| July 17, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.2 μg/m3 (42) | 42.0 | |
| July 17, 2019, 9 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 | |
| July 17, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.2 μg/m3 (50) | 50.0 | |
| July 17, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.3 μg/m3 (35) | 35.0 | |
| July 17, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.7 μg/m3 (24) | 24.0 | |
| July 17, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.2 μg/m3 (47) | 47.0 | |
| July 17, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.2 μg/m3 (42) | 42.0 | |
| July 17, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.5 μg/m3 (40) | 40.0 | |
| July 17, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.6 μg/m3 (51) | 51.0 | |
| July 17, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.9 μg/m3 (56) | 56.0 | |
| July 17, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.2 μg/m3 (47) | 47.0 | |
| July 16, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.5 μg/m3 (10) | 10.0 | |
| July 16, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | -9.5 μg/m3 (0) | N/A | |
| July 16, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (4) | 4.0 | |
| July 16, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.2 μg/m3 (18) | 18.0 | |
| July 16, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.5 μg/m3 (19) | 19.0 | |
| July 16, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.7 μg/m3 (32) | 32.0 | |
| July 16, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.6 μg/m3 (32) | 32.0 | |
| July 16, 2019, 4 p.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 | |
| July 16, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.7 μg/m3 (51) | 51.0 | |
| July 16, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.5 μg/m3 (23) | 23.0 | |
| July 16, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.9 μg/m3 (50) | 50.0 | |
| July 16, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.4 μg/m3 (18) | 18.0 | |
| July 16, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 34.3 μg/m3 (97) | 97.0 | |
| July 16, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.8 μg/m3 (62) | 62.0 | |
| July 16, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.6 μg/m3 (7) | 7.0 | |
| July 16, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.6 μg/m3 (58) | 58.0 | |
| July 16, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 22.8 μg/m3 (73) | 73.0 | |
| July 16, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | -1.8 μg/m3 (0) | N/A | |
| July 16, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.9 μg/m3 (4) | 4.0 | |
| July 16, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.1 μg/m3 (46) | 46.0 | |
| July 16, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.8 μg/m3 (52) | 52.0 | |
| July 16, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.6 μg/m3 (56) | 56.0 | |
| July 15, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.7 μg/m3 (40) | 40.0 | |
| July 15, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.2 μg/m3 (38) | 38.0 | |
| July 15, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.6 μg/m3 (15) | 15.0 | |
| July 15, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.1 μg/m3 (13) | 13.0 | |
| July 15, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.6 μg/m3 (28) | 28.0 | |
| July 15, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.5 μg/m3 (6) | 6.0 | |
| July 15, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | -1.4 μg/m3 (0) | N/A | |
| July 15, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | -4.1 μg/m3 (0) | N/A | |
| July 15, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | -3.4 μg/m3 (0) | N/A | |
| July 15, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.3 μg/m3 (18) | 18.0 | |
| July 15, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.5 μg/m3 (35) | 35.0 | |
| July 15, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.2 μg/m3 (30) | 30.0 | |
| July 15, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.8 μg/m3 (45) | 45.0 | |
| July 15, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.2 μg/m3 (53) | 53.0 | |
| July 15, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.1 μg/m3 (50) | 50.0 | |
| July 15, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.3 μg/m3 (26) | 26.0 | |
| July 15, 2019, 6 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 | |
| July 15, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.2 μg/m3 (59) | 59.0 | |
| July 15, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.3 μg/m3 (55) | 55.0 | |
| July 15, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.1 μg/m3 (52) | 52.0 | |
| July 15, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.3 μg/m3 (35) | 35.0 | |
| July 15, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | -2.7 μg/m3 (0) | N/A | |
| July 15, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.9 μg/m3 (69) | 69.0 | |
| July 14, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 44.2 μg/m3 (122) | 122.0 | |
| July 14, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 19.8 μg/m3 (67) | 67.0 | |
| July 14, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.6 μg/m3 (62) | 62.0 | |
| July 14, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.9 μg/m3 (33) | 33.0 | |
| July 14, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | -3.0 μg/m3 (0) | N/A | |
| July 14, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.4 μg/m3 (10) | 10.0 | |
| July 14, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 39.7 μg/m3 (110) | 110.0 | |
| July 14, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 19.2 μg/m3 (65) | 65.0 | |
| July 14, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.4 μg/m3 (51) | 51.0 | |
| July 14, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | -0.5 μg/m3 (0) | N/A | |
| July 14, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.6 μg/m3 (40) | 40.0 | |
| July 14, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| July 14, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.4 μg/m3 (39) | 39.0 | |
| July 14, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.4 μg/m3 (39) | 39.0 | |
| July 14, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.7 μg/m3 (40) | 40.0 | |
| July 14, 2019, 8 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 | |
| July 14, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.8 μg/m3 (28) | 28.0 | |
| July 14, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.1 μg/m3 (9) | 9.0 | |
| July 14, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.2 μg/m3 (55) | 55.0 | |
| July 14, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 19.2 μg/m3 (65) | 65.0 | |
| July 14, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.3 μg/m3 (63) | 63.0 | |
| July 14, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.3 μg/m3 (68) | 68.0 | |
| July 14, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.1 μg/m3 (57) | 57.0 | |
| July 14, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.7 μg/m3 (71) | 71.0 | |
| July 13, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.9 μg/m3 (69) | 69.0 | |
| July 13, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.9 μg/m3 (50) | 50.0 | |
| July 13, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.2 μg/m3 (38) | 38.0 | |
| July 13, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.2 μg/m3 (26) | 26.0 | |
| July 13, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.1 μg/m3 (21) | 21.0 | |
| July 13, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.4 μg/m3 (18) | 18.0 | |
| July 13, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.3 μg/m3 (26) | 26.0 | |
| July 13, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.7 μg/m3 (28) | 28.0 | |
| July 13, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.7 μg/m3 (11) | 11.0 | |
| July 13, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.6 μg/m3 (7) | 7.0 | |
| July 13, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.9 μg/m3 (16) | 16.0 | |
| July 13, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.2 μg/m3 (53) | 53.0 | |
| July 13, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.7 μg/m3 (45) | 45.0 | |
| July 13, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.2 μg/m3 (50) | 50.0 | |
| July 13, 2019, 9 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 | |
| July 13, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.1 μg/m3 (63) | 63.0 | |
| July 13, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.1 μg/m3 (67) | 67.0 | |
| July 13, 2019, 6 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 | |
| July 13, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.7 μg/m3 (45) | 45.0 | |
| July 13, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.3 μg/m3 (55) | 55.0 | |
| July 13, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.1 μg/m3 (61) | 61.0 | |
| July 13, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.4 μg/m3 (55) | 55.0 | |
| July 13, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.6 μg/m3 (60) | 60.0 | |
| July 13, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.3 μg/m3 (59) | 59.0 | |
| July 12, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.9 μg/m3 (25) | 25.0 | |
| July 12, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.5 μg/m3 (35) | 35.0 | |
| July 12, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.5 μg/m3 (48) | 48.0 | |
| July 12, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.3 μg/m3 (39) | 39.0 | |
| July 12, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.1 μg/m3 (46) | 46.0 | |
| July 12, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.2 μg/m3 (42) | 42.0 | |
| July 12, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.1 μg/m3 (25) | 25.0 | |
| July 12, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.8 μg/m3 (12) | 12.0 | |
| July 12, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | -2.2 μg/m3 (0) | N/A | |
| July 12, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | -5.4 μg/m3 (0) | N/A | |
| July 12, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.2 μg/m3 (18) | 18.0 | |
| July 12, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.6 μg/m3 (36) | 36.0 | |
| July 12, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.8 μg/m3 (49) | 49.0 | |
| July 12, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.4 μg/m3 (43) | 43.0 | |
| July 12, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.6 μg/m3 (51) | 51.0 | |
| July 12, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.9 μg/m3 (45) | 45.0 | |
| July 12, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.8 μg/m3 (24) | 24.0 |