Savannah GA, US: 32.0903, -81.1306
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 26, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (23) | N/A | N/A | N/A | N/A | 23.0 | |
| March 26, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (50) | N/A | N/A | 23.0 μg/m3 (21) | 14.7 μg/m3 (56) | 56.0 | |
| March 26, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 28.0 μg/m3 (25) | 13.8 μg/m3 (54) | 54.0 | |
| March 26, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 27.0 μg/m3 (25) | 11.6 μg/m3 (48) | 48.0 | |
| March 26, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 22.0 μg/m3 (20) | 10.3 μg/m3 (43) | 43.0 | |
| March 26, 2019, noon | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 19.0 μg/m3 (17) | 9.7 μg/m3 (40) | 40.0 | |
| March 26, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 16.0 μg/m3 (15) | 8.6 μg/m3 (36) | 36.0 | |
| March 26, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 13.0 μg/m3 (12) | 7.4 μg/m3 (31) | 31.0 | |
| March 26, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 15.0 μg/m3 (14) | 8.4 μg/m3 (35) | 35.0 | |
| March 26, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 13.0 μg/m3 (12) | 6.2 μg/m3 (26) | 26.0 | |
| March 26, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 16.0 μg/m3 (15) | 6.3 μg/m3 (26) | 26.0 | |
| March 26, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 16.0 μg/m3 (15) | 6.4 μg/m3 (27) | 27.0 | |
| March 26, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 24.0 μg/m3 (22) | 7.7 μg/m3 (32) | 32.0 | |
| March 26, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 1.0 | |
| March 26, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 28.0 μg/m3 (25) | 15.7 μg/m3 (58) | 58.0 | |
| March 26, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 30.0 μg/m3 (27) | 14.4 μg/m3 (55) | 55.0 | |
| March 26, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 24.0 μg/m3 (22) | 12.1 μg/m3 (50) | 50.0 | |
| March 26, 2019, midnight | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 22.0 μg/m3 (20) | 11.4 μg/m3 (48) | 48.0 | |
| March 25, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 28.0 μg/m3 (25) | 12.0 μg/m3 (50) | 50.0 | |
| March 25, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 46.0 μg/m3 (42) | 14.3 μg/m3 (55) | 55.0 | |
| March 25, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 60.0 μg/m3 (52) | 20.1 μg/m3 (67) | 67.0 | |
| March 25, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 71.0 μg/m3 (58) | 26.0 μg/m3 (80) | 80.0 | |
| March 25, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 101.0 μg/m3 (73) | 53.9 μg/m3 (146) | 146.0 | |
| March 25, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 148.0 μg/m3 (96) | 102.3 μg/m3 (175) | 175.0 | |
| March 25, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 68.0 μg/m3 (56) | 26.3 μg/m3 (80) | 80.0 | |
| March 25, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 48.0 μg/m3 (44) | 10.2 μg/m3 (42) | 44.0 | |
| March 25, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 41.0 μg/m3 (37) | 10.3 μg/m3 (43) | 43.0 | |
| March 25, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 43.0 μg/m3 (39) | 10.9 μg/m3 (45) | 45.0 | |
| March 25, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 26.0 μg/m3 (24) | 9.0 μg/m3 (38) | 38.0 | |
| March 25, 2019, noon | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 33.0 μg/m3 (30) | 9.7 μg/m3 (40) | 40.0 | |
| March 25, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 44.0 μg/m3 (40) | 10.3 μg/m3 (43) | 43.0 | |
| March 25, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 18.0 μg/m3 (16) | 7.1 μg/m3 (30) | 30.0 | |
| March 25, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 24.0 μg/m3 (22) | 7.2 μg/m3 (30) | 30.0 | |
| March 25, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 57.0 μg/m3 (51) | 10.6 μg/m3 (44) | 51.0 | |
| March 25, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 μg/m3 (27) | 7.4 μg/m3 (31) | 31.0 | |
| March 25, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 μg/m3 (38) | 8.9 μg/m3 (37) | 38.0 | |
| March 25, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 μg/m3 (16) | 6.5 μg/m3 (27) | 27.0 | |
| March 25, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 1.0 | |
| March 25, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 11.0 μg/m3 (10) | 4.7 μg/m3 (20) | 20.0 | |
| March 25, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 10.0 μg/m3 (9) | 4.2 μg/m3 (18) | 18.0 | |
| March 25, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 10.0 μg/m3 (9) | 4.0 μg/m3 (17) | 17.0 | |
| March 25, 2019, midnight | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 10.0 μg/m3 (9) | 4.3 μg/m3 (18) | 18.0 | |
| March 24, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 11.0 μg/m3 (10) | 4.4 μg/m3 (18) | 18.0 | |
| March 24, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 11.0 μg/m3 (10) | 4.3 μg/m3 (18) | 18.0 | |
| March 24, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 11.0 μg/m3 (10) | 4.4 μg/m3 (18) | 18.0 | |
| March 24, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 11.0 μg/m3 (10) | 4.5 μg/m3 (19) | 19.0 | |
| March 24, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 12.0 μg/m3 (11) | 4.7 μg/m3 (20) | 20.0 | |
| March 24, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 13.0 μg/m3 (12) | 5.0 μg/m3 (21) | 21.0 | |
| March 24, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 13.0 μg/m3 (12) | 5.8 μg/m3 (24) | 24.0 | |
| March 24, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 16.0 μg/m3 (15) | 6.9 μg/m3 (29) | 29.0 | |
| March 24, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 14.0 μg/m3 (13) | 6.2 μg/m3 (26) | 26.0 | |
| March 24, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (7) | N/A | N/A | 15.0 μg/m3 (14) | 6.3 μg/m3 (26) | 26.0 | |
| March 24, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 15.0 μg/m3 (14) | 6.9 μg/m3 (29) | 29.0 | |
| March 24, 2019, noon | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 15.0 μg/m3 (14) | 6.7 μg/m3 (28) | 28.0 | |
| March 24, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 17.0 μg/m3 (15) | 7.9 μg/m3 (33) | 33.0 | |
| March 24, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 16.0 μg/m3 (15) | 8.3 μg/m3 (35) | 35.0 | |
| March 24, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 18.0 μg/m3 (16) | 8.0 μg/m3 (33) | 33.0 | |
| March 24, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 14.0 μg/m3 (13) | 6.4 μg/m3 (27) | 27.0 | |
| March 24, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 21.0 μg/m3 (19) | 8.8 μg/m3 (37) | 37.0 | |
| March 24, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 28.0 μg/m3 (25) | 12.7 μg/m3 (51) | 51.0 | |
| March 24, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 27.0 μg/m3 (25) | 9.9 μg/m3 (41) | 41.0 | |
| March 24, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 20.0 μg/m3 (18) | 8.6 μg/m3 (36) | 36.0 | |
| March 24, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 21.0 μg/m3 (19) | 7.7 μg/m3 (32) | 32.0 | |
| March 24, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 16.0 μg/m3 (15) | 6.8 μg/m3 (28) | 28.0 | |
| March 24, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 13.0 μg/m3 (12) | 6.3 μg/m3 (26) | 26.0 | |
| March 24, 2019, midnight | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 13.0 μg/m3 (12) | 5.6 μg/m3 (23) | 23.0 | |
| March 23, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 14.0 μg/m3 (13) | 5.9 μg/m3 (25) | 25.0 | |
| March 23, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 15.0 μg/m3 (14) | 5.3 μg/m3 (22) | 22.0 | |
| March 23, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 14.0 μg/m3 (13) | 5.1 μg/m3 (21) | 21.0 | |
| March 23, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 12.0 μg/m3 (11) | 5.1 μg/m3 (21) | 21.0 | |
| March 23, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 14.0 μg/m3 (13) | 5.2 μg/m3 (22) | 22.0 | |
| March 23, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 14.0 μg/m3 (13) | 5.0 μg/m3 (21) | 21.0 | |
| March 23, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 14.0 μg/m3 (13) | 5.7 μg/m3 (24) | 24.0 | |
| March 23, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 17.0 μg/m3 (15) | 6.3 μg/m3 (26) | 26.0 | |
| March 23, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 15.0 μg/m3 (14) | 6.3 μg/m3 (26) | 26.0 | |
| March 23, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 26.0 μg/m3 (24) | 11.7 μg/m3 (49) | 49.0 | |
| March 23, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 30.0 μg/m3 (27) | 15.5 μg/m3 (57) | 57.0 | |
| March 23, 2019, noon | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (11) | N/A | N/A | 69.0 μg/m3 (57) | 17.1 μg/m3 (61) | 61.0 | |
| March 23, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 33.0 μg/m3 (30) | 15.7 μg/m3 (58) | 58.0 | |
| March 23, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 28.0 μg/m3 (25) | 17.5 μg/m3 (62) | 62.0 | |
| March 23, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 35.0 μg/m3 (32) | 18.5 μg/m3 (64) | 64.0 | |
| March 23, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 31.0 μg/m3 (28) | 17.8 μg/m3 (62) | 62.0 | |
| March 23, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 29.0 μg/m3 (26) | 17.6 μg/m3 (62) | 62.0 | |
| March 23, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 26.0 μg/m3 (24) | 17.3 μg/m3 (61) | 61.0 | |
| March 23, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 26.0 μg/m3 (24) | 16.4 μg/m3 (59) | 59.0 | |
| March 23, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 1.0 | |
| March 23, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 26.0 μg/m3 (24) | 15.8 μg/m3 (58) | 58.0 | |
| March 23, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 37.0 μg/m3 (34) | 14.7 μg/m3 (56) | 56.0 | |
| March 23, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 37.0 μg/m3 (34) | 13.5 μg/m3 (53) | 53.0 | |
| March 23, 2019, midnight | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 42.0 μg/m3 (38) | 11.7 μg/m3 (49) | 49.0 | |
| March 22, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 22.0 μg/m3 (20) | 9.8 μg/m3 (41) | 41.0 | |
| March 22, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 21.0 μg/m3 (19) | 8.2 μg/m3 (34) | 34.0 | |
| March 22, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 28.0 μg/m3 (25) | 7.3 μg/m3 (30) | 30.0 | |
| March 22, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 30.0 μg/m3 (27) | 7.9 μg/m3 (33) | 33.0 | |
| March 22, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 24.0 μg/m3 (22) | 7.6 μg/m3 (32) | 32.0 | |
| March 22, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 37.0 μg/m3 (34) | 7.8 μg/m3 (32) | 34.0 | |
| March 22, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 40.0 μg/m3 (36) | 8.2 μg/m3 (34) | 36.0 | |
| March 22, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 30.0 μg/m3 (27) | 7.4 μg/m3 (31) | 31.0 | |
| March 22, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 18.0 μg/m3 (16) | 5.9 μg/m3 (25) | 25.0 | |
| March 22, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 21.0 μg/m3 (19) | 7.0 μg/m3 (29) | 29.0 | |
| March 22, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 30.0 μg/m3 (27) | 9.1 μg/m3 (38) | 38.0 | |
| March 22, 2019, noon | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 31.0 μg/m3 (28) | 11.5 μg/m3 (48) | 48.0 | |
| March 22, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 22.0 μg/m3 (20) | 10.8 μg/m3 (45) | 45.0 | |
| March 22, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 17.0 μg/m3 (15) | 10.7 μg/m3 (45) | 45.0 | |
| March 22, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 21.0 μg/m3 (19) | 11.0 μg/m3 (46) | 46.0 | |
| March 22, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 19.0 μg/m3 (17) | 10.2 μg/m3 (42) | 42.0 | |
| March 22, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 18.0 μg/m3 (16) | 10.3 μg/m3 (43) | 43.0 | |
| March 22, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 17.0 μg/m3 (15) | 8.7 μg/m3 (36) | 36.0 | |
| March 22, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 17.0 μg/m3 (15) | 8.6 μg/m3 (36) | 36.0 | |
| March 22, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 1.0 | |
| March 22, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 20.0 μg/m3 (18) | 12.7 μg/m3 (51) | 51.0 | |
| March 22, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 28.0 μg/m3 (25) | 17.8 μg/m3 (62) | 62.0 | |
| March 22, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 40.0 μg/m3 (36) | 30.1 μg/m3 (89) | 89.0 | |
| March 22, 2019, midnight | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 59.0 μg/m3 (52) | 39.1 μg/m3 (109) | 109.0 | |
| March 21, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 56.0 μg/m3 (50) | 33.9 μg/m3 (97) | 97.0 | |
| March 21, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 77.0 μg/m3 (61) | 24.0 μg/m3 (76) | 76.0 | |
| March 21, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | N/A | 30.6 μg/m3 (90) | 90.0 | |
| March 21, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 59.0 μg/m3 (52) | 23.0 μg/m3 (73) | 73.0 | |
| March 21, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 62.0 μg/m3 (54) | 28.1 μg/m3 (84) | 84.0 | |
| March 21, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 65.0 μg/m3 (55) | 30.5 μg/m3 (89) | 89.0 | |
| March 21, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 59.0 μg/m3 (52) | 23.3 μg/m3 (74) | 74.0 | |
| March 21, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 47.0 μg/m3 (43) | 21.4 μg/m3 (70) | 70.0 | |
| March 21, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 47.0 μg/m3 (43) | 17.5 μg/m3 (62) | 62.0 | |
| March 21, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 60.0 μg/m3 (52) | 20.2 μg/m3 (67) | 67.0 | |
| March 21, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 86.0 μg/m3 (66) | 25.6 μg/m3 (79) | 79.0 | |
| March 21, 2019, noon | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 183.0 μg/m3 (114) | 39.4 μg/m3 (110) | 114.0 | |
| March 21, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 184.0 μg/m3 (114) | 37.6 μg/m3 (105) | 114.0 | |
| March 21, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 122.0 μg/m3 (84) | 28.7 μg/m3 (86) | 86.0 | |
| March 21, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 64.0 μg/m3 (54) | 24.1 μg/m3 (76) | 76.0 | |
| March 21, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 55.0 μg/m3 (50) | 23.5 μg/m3 (74) | 74.0 | |
| March 21, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 46.0 μg/m3 (42) | 23.4 μg/m3 (74) | 74.0 | |
| March 21, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 39.0 μg/m3 (35) | 23.9 μg/m3 (75) | 75.0 | |
| March 21, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 32.0 μg/m3 (29) | 22.0 μg/m3 (71) | 71.0 | |
| March 21, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | N/A | N/A | 3.0 | |
| March 21, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 29.0 μg/m3 (26) | 19.2 μg/m3 (65) | 65.0 | |
| March 21, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 20.0 μg/m3 (18) | 13.0 μg/m3 (52) | 52.0 | |
| March 21, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 24.0 μg/m3 (22) | 14.1 μg/m3 (54) | 54.0 | |
| March 21, 2019, midnight | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (13) | N/A | N/A | 33.0 μg/m3 (30) | 20.5 μg/m3 (68) | 68.0 | |
| March 20, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 29.0 μg/m3 (26) | 12.6 μg/m3 (51) | 51.0 | |
| March 20, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 33.0 μg/m3 (30) | 17.5 μg/m3 (62) | 62.0 | |
| March 20, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 37.0 μg/m3 (34) | 20.6 μg/m3 (68) | 68.0 | |
| March 20, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 45.0 μg/m3 (41) | 22.0 μg/m3 (71) | 71.0 | |
| March 20, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 36.0 μg/m3 (33) | 18.0 μg/m3 (63) | 63.0 | |
| March 20, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 31.0 μg/m3 (28) | 15.5 μg/m3 (57) | 57.0 | |
| March 20, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 21.0 μg/m3 (19) | 8.0 μg/m3 (33) | 33.0 | |
| March 20, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 21.0 μg/m3 (19) | 7.9 μg/m3 (33) | 33.0 | |
| March 20, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 27.0 μg/m3 (25) | 9.8 μg/m3 (41) | 41.0 | |
| March 20, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 33.0 μg/m3 (30) | 13.4 μg/m3 (53) | 53.0 | |
| March 20, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 32.0 μg/m3 (29) | 15.1 μg/m3 (57) | 57.0 | |
| March 20, 2019, noon | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 38.0 μg/m3 (35) | 16.0 μg/m3 (59) | 59.0 | |
| March 20, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 55.0 μg/m3 (50) | 23.4 μg/m3 (74) | 74.0 | |
| March 20, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 47.0 μg/m3 (43) | 24.3 μg/m3 (76) | 76.0 | |
| March 20, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 39.0 μg/m3 (35) | 24.3 μg/m3 (76) | 76.0 | |
| March 20, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 41.0 μg/m3 (37) | 27.7 μg/m3 (83) | 83.0 | |
| March 20, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 38.0 μg/m3 (35) | 24.6 μg/m3 (77) | 77.0 | |
| March 20, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 34.0 μg/m3 (31) | 20.3 μg/m3 (68) | 68.0 | |
| March 20, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 30.0 μg/m3 (27) | 17.4 μg/m3 (61) | 61.0 | |
| March 20, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | N/A | N/A | 3.0 | |
| March 20, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 47.0 μg/m3 (43) | 21.7 μg/m3 (71) | 71.0 | |
| March 20, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 47.0 μg/m3 (43) | 20.4 μg/m3 (68) | 68.0 | |
| March 20, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 39.0 μg/m3 (35) | 18.7 μg/m3 (64) | 64.0 | |
| March 20, 2019, midnight | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | 40.0 μg/m3 (36) | 22.2 μg/m3 (72) | 72.0 | |
| March 19, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 55.0 μg/m3 (50) | 24.8 μg/m3 (77) | 77.0 | |
| March 19, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 64.0 μg/m3 (54) | 28.3 μg/m3 (85) | 85.0 | |
| March 19, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 95.0 μg/m3 (70) | 63.7 μg/m3 (154) | 154.0 | |
| March 19, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (11) | N/A | N/A | 74.0 μg/m3 (60) | 46.5 μg/m3 (128) | 128.0 | |
| March 19, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 52.0 μg/m3 (47) | 24.6 μg/m3 (77) | 77.0 | |
| March 19, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 68.0 μg/m3 (56) | 14.0 μg/m3 (54) | 56.0 |