Ontario CA, US: 34.0309, -117.617403
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sept. 21, 2019, 4 p.m. | 49.6 ppb (46) | 21.7 ppb (20) | N/A | 28.0 ppb (26) | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 | |
| Sept. 21, 2019, 3 p.m. | 94.5 ppb (93) | 57.9 ppb (54) | N/A | 37.0 ppb (34) | N/A | N/A | N/A | N/A | N/A | N/A | 93.0 | |
| Sept. 21, 2019, 2 p.m. | 109.0 ppb (102) | 75.9 ppb (73) | N/A | 33.0 ppb (31) | N/A | N/A | N/A | N/A | N/A | N/A | 102.0 | |
| Sept. 21, 2019, 1 p.m. | 40.7 ppb (38) | 17.4 ppb (16) | N/A | 23.0 ppb (21) | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 | |
| Sept. 21, 2019, noon | 55.2 ppb (51) | 28.3 ppb (26) | N/A | 27.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 | |
| Sept. 21, 2019, 11 a.m. | 22.9 ppb (21) | 2.5 ppb (2) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 | |
| Sept. 21, 2019, 10 a.m. | 47.4 ppb (44) | 22.0 ppb (20) | N/A | 25.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 | |
| Sept. 21, 2019, 9 a.m. | 49.9 ppb (46) | 23.7 ppb (22) | N/A | 26.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 | |
| Sept. 21, 2019, 8 a.m. | 34.7 ppb (32) | 9.1 ppb (8) | N/A | 26.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 | |
| Sept. 21, 2019, 7 a.m. | 32.1 ppb (30) | 5.7 ppb (5) | N/A | 26.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 | |
| Sept. 21, 2019, 6 a.m. | 23.1 ppb (21) | 4.2 ppb (4) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 | |
| Sept. 21, 2019, 5 a.m. | 36.1 ppb (33) | 9.2 ppb (9) | N/A | 27.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 | |
| Sept. 21, 2019, 4 a.m. | 46.8 ppb (43) | 15.7 ppb (15) | N/A | 31.0 ppb (29) | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 | |
| Sept. 21, 2019, 3 a.m. | 44.6 ppb (41) | 13.7 ppb (13) | N/A | 31.0 ppb (29) | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 | |
| Sept. 21, 2019, 2 a.m. | 52.1 ppb (48) | 16.5 ppb (15) | N/A | 36.0 ppb (33) | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 | |
| Sept. 21, 2019, 1 a.m. | 54.0 ppb (50) | 19.4 ppb (18) | N/A | 35.0 ppb (32) | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 | |
| Sept. 21, 2019, midnight | 51.1 ppb (47) | 18.4 ppb (17) | N/A | 33.0 ppb (31) | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 | |
| Sept. 20, 2019, 11 p.m. | 53.3 ppb (49) | 19.3 ppb (18) | N/A | 34.0 ppb (31) | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 | |
| Sept. 20, 2019, 10 p.m. | 33.1 ppb (31) | 9.4 ppb (9) | N/A | 24.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 | |
| Sept. 20, 2019, 9 p.m. | 26.9 ppb (25) | 7.8 ppb (7) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 | |
| Sept. 20, 2019, 8 p.m. | 25.5 ppb (24) | 8.3 ppb (8) | N/A | 17.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 | |
| Sept. 20, 2019, 7 p.m. | 46.5 ppb (43) | 21.4 ppb (20) | N/A | 25.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 | |
| Sept. 20, 2019, 6 p.m. | 28.3 ppb (26) | 11.7 ppb (11) | N/A | 17.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 | |
| Sept. 20, 2019, 5 p.m. | 35.6 ppb (33) | 17.7 ppb (16) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 | |
| Sept. 20, 2019, 4 p.m. | 24.9 ppb (23) | 11.8 ppb (11) | N/A | 13.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 | |
| Sept. 19, 2019, 4 p.m. | 22.1 ppb (20) | 10.2 ppb (9) | N/A | 12.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 | |
| Sept. 19, 2019, 3 p.m. | 77.2 ppb (75) | 47.8 ppb (44) | N/A | 29.0 ppb (27) | N/A | N/A | N/A | N/A | N/A | N/A | 75.0 | |
| Sept. 19, 2019, 2 p.m. | 93.9 ppb (92) | 64.1 ppb (61) | N/A | 30.0 ppb (28) | N/A | N/A | N/A | N/A | N/A | N/A | 92.0 | |
| Sept. 19, 2019, 1 p.m. | 91.2 ppb (90) | 61.2 ppb (58) | N/A | 30.0 ppb (28) | N/A | N/A | N/A | N/A | N/A | N/A | 90.0 | |
| Sept. 19, 2019, noon | 42.1 ppb (39) | 20.7 ppb (19) | N/A | 21.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 | |
| Sept. 19, 2019, 11 a.m. | 18.7 ppb (17) | 5.8 ppb (5) | N/A | 13.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 | |
| Sept. 19, 2019, 10 a.m. | 28.2 ppb (26) | 8.4 ppb (8) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 | |
| Sept. 19, 2019, 9 a.m. | 47.5 ppb (44) | 20.1 ppb (19) | N/A | 27.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 | |
| Sept. 19, 2019, 8 a.m. | 44.7 ppb (41) | 19.5 ppb (18) | N/A | 25.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 | |
| Sept. 19, 2019, 7 a.m. | 42.1 ppb (39) | 15.5 ppb (14) | N/A | 27.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 | |
| Sept. 19, 2019, 6 a.m. | 49.4 ppb (46) | 21.3 ppb (20) | N/A | 28.0 ppb (26) | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 | |
| Sept. 19, 2019, 5 a.m. | 54.3 ppb (50) | 24.6 ppb (23) | N/A | 30.0 ppb (28) | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 | |
| Sept. 19, 2019, 4 a.m. | 48.3 ppb (45) | 21.5 ppb (20) | N/A | 27.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 | |
| Sept. 19, 2019, 3 a.m. | 46.0 ppb (43) | 20.7 ppb (19) | N/A | 25.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 | |
| Sept. 19, 2019, 2 a.m. | 43.2 ppb (40) | 19.3 ppb (18) | N/A | 24.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 | |
| Sept. 19, 2019, 1 a.m. | 49.1 ppb (45) | 21.3 ppb (20) | N/A | 28.0 ppb (26) | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 | |
| Sept. 19, 2019, midnight | 55.2 ppb (51) | 23.8 ppb (22) | N/A | 31.0 ppb (29) | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 | |
| Sept. 18, 2019, 11 p.m. | 47.9 ppb (44) | 17.2 ppb (16) | N/A | 31.0 ppb (29) | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 | |
| Sept. 18, 2019, 10 p.m. | 42.3 ppb (39) | 13.3 ppb (12) | N/A | 29.0 ppb (27) | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 | |
| Sept. 18, 2019, 9 p.m. | 61.3 ppb (58) | 23.5 ppb (22) | N/A | 38.0 ppb (35) | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 | |
| Sept. 18, 2019, 8 p.m. | 38.9 ppb (36) | 13.1 ppb (12) | N/A | 26.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 | |
| Sept. 18, 2019, 7 p.m. | 36.5 ppb (34) | 13.1 ppb (12) | N/A | 23.0 ppb (21) | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 | |
| Sept. 18, 2019, 6 p.m. | 47.0 ppb (44) | 19.9 ppb (18) | N/A | 27.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 | |
| Sept. 18, 2019, 5 p.m. | 77.6 ppb (75) | 39.9 ppb (37) | N/A | 38.0 ppb (35) | N/A | N/A | N/A | N/A | N/A | N/A | 75.0 | |
| Sept. 18, 2019, 4 p.m. | 102.4 ppb (100) | 59.8 ppb (56) | N/A | 43.0 ppb (40) | N/A | N/A | N/A | N/A | N/A | N/A | 100.0 | |
| Sept. 18, 2019, 3 p.m. | 88.4 ppb (87) | 54.3 ppb (50) | N/A | 34.0 ppb (31) | N/A | N/A | N/A | N/A | N/A | N/A | 87.0 | |
| Sept. 18, 2019, 2 p.m. | 150.2 ppb (109) | 115.4 ppb (103) | N/A | 35.0 ppb (32) | N/A | N/A | N/A | N/A | N/A | N/A | 109.0 | |
| Sept. 18, 2019, 1 p.m. | 146.3 ppb (109) | 113.0 ppb (102) | N/A | 33.0 ppb (31) | N/A | N/A | N/A | N/A | N/A | N/A | 109.0 | |
| Sept. 18, 2019, noon | 50.1 ppb (46) | 21.0 ppb (19) | N/A | 29.0 ppb (27) | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 | |
| Sept. 18, 2019, 11 a.m. | 28.4 ppb (26) | 4.5 ppb (4) | N/A | 24.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 | |
| Sept. 18, 2019, 10 a.m. | 30.8 ppb (29) | 6.1 ppb (6) | N/A | 25.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 | |
| Sept. 18, 2019, 9 a.m. | 57.3 ppb (54) | 28.9 ppb (27) | N/A | 28.0 ppb (26) | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 | |
| Sept. 18, 2019, 8 a.m. | 34.0 ppb (31) | 8.0 ppb (7) | N/A | 26.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 | |
| Sept. 18, 2019, 7 a.m. | 48.2 ppb (45) | 19.1 ppb (18) | N/A | 29.0 ppb (27) | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 | |
| Sept. 18, 2019, 6 a.m. | 51.4 ppb (48) | 18.8 ppb (17) | N/A | 33.0 ppb (31) | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 | |
| Sept. 18, 2019, 5 a.m. | 56.0 ppb (52) | 20.9 ppb (19) | N/A | 35.0 ppb (32) | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 | |
| Sept. 18, 2019, 4 a.m. | 54.7 ppb (51) | 18.9 ppb (18) | N/A | 36.0 ppb (33) | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 | |
| Sept. 18, 2019, 3 a.m. | 49.8 ppb (46) | 20.0 ppb (19) | N/A | 30.0 ppb (28) | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 | |
| Sept. 18, 2019, 2 a.m. | 41.4 ppb (38) | 17.3 ppb (16) | N/A | 24.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 | |
| Sept. 18, 2019, midnight | 55.5 ppb (52) | 25.6 ppb (24) | N/A | 30.0 ppb (28) | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 | |
| Sept. 17, 2019, 11 p.m. | 41.7 ppb (39) | 15.9 ppb (15) | N/A | 26.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 | |
| Sept. 17, 2019, 10 p.m. | 28.0 ppb (26) | 9.8 ppb (9) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 | |
| Sept. 17, 2019, 9 p.m. | 36.0 ppb (33) | 13.0 ppb (12) | N/A | 23.0 ppb (21) | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 | |
| Sept. 17, 2019, 8 p.m. | 49.5 ppb (46) | 21.1 ppb (20) | N/A | 28.0 ppb (26) | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 | |
| Sept. 17, 2019, 7 p.m. | 37.8 ppb (35) | 15.3 ppb (14) | N/A | 23.0 ppb (21) | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 | |
| Sept. 17, 2019, 6 p.m. | 52.3 ppb (48) | 24.5 ppb (23) | N/A | 28.0 ppb (26) | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 | |
| Sept. 17, 2019, 5 p.m. | 71.8 ppb (69) | 37.3 ppb (35) | N/A | 35.0 ppb (32) | N/A | N/A | N/A | N/A | N/A | N/A | 69.0 | |
| Sept. 17, 2019, 4 p.m. | 90.8 ppb (89) | 53.8 ppb (50) | N/A | 37.0 ppb (34) | N/A | N/A | N/A | N/A | N/A | N/A | 89.0 | |
| Sept. 17, 2019, 3 p.m. | 107.0 ppb (101) | 71.8 ppb (69) | N/A | 35.0 ppb (32) | N/A | N/A | N/A | N/A | N/A | N/A | 101.0 | |
| Sept. 17, 2019, 2 p.m. | 132.3 ppb (106) | 97.5 ppb (96) | N/A | 35.0 ppb (32) | N/A | N/A | N/A | N/A | N/A | N/A | 106.0 | |
| Sept. 17, 2019, 1 p.m. | 57.0 ppb (53) | 26.5 ppb (25) | N/A | 31.0 ppb (29) | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 | |
| Sept. 17, 2019, noon | 52.5 ppb (49) | 24.4 ppb (23) | N/A | 28.0 ppb (26) | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 | |
| Sept. 17, 2019, 11 a.m. | 53.4 ppb (49) | 23.3 ppb (22) | N/A | 30.0 ppb (28) | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 | |
| Sept. 17, 2019, 10 a.m. | 82.5 ppb (80) | 44.7 ppb (41) | N/A | 38.0 ppb (35) | N/A | N/A | N/A | N/A | N/A | N/A | 80.0 | |
| Sept. 17, 2019, 9 a.m. | 15.3 ppb (14) | 1.3 ppb (1) | N/A | 14.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 | |
| Sept. 17, 2019, 8 a.m. | 36.2 ppb (34) | 12.1 ppb (11) | N/A | 24.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 | |
| Sept. 17, 2019, 7 a.m. | 34.7 ppb (32) | 11.0 ppb (10) | N/A | 24.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 | |
| Sept. 17, 2019, 6 a.m. | 39.1 ppb (36) | 14.4 ppb (13) | N/A | 25.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 | |
| Sept. 17, 2019, 5 a.m. | 15.3 ppb (14) | 2.4 ppb (2) | N/A | 13.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 | |
| Sept. 17, 2019, 4 a.m. | 34.9 ppb (32) | 10.9 ppb (10) | N/A | 24.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 | |
| Sept. 17, 2019, 3 a.m. | 39.6 ppb (37) | 12.2 ppb (11) | N/A | 27.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 | |
| Sept. 17, 2019, 2 a.m. | 46.0 ppb (43) | 16.2 ppb (15) | N/A | 30.0 ppb (28) | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 | |
| Sept. 17, 2019, 1 a.m. | 50.7 ppb (47) | 21.4 ppb (20) | N/A | 29.0 ppb (27) | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 | |
| Sept. 17, 2019, midnight | 54.6 ppb (51) | 24.5 ppb (23) | N/A | 30.0 ppb (28) | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 | |
| Sept. 16, 2019, 11 p.m. | 56.1 ppb (52) | 23.4 ppb (22) | N/A | 33.0 ppb (31) | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 | |
| Sept. 16, 2019, 10 p.m. | 55.0 ppb (51) | 20.6 ppb (19) | N/A | 34.0 ppb (31) | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 | |
| Sept. 16, 2019, 9 p.m. | 45.9 ppb (42) | 16.9 ppb (16) | N/A | 29.0 ppb (27) | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 | |
| Sept. 16, 2019, 8 p.m. | 46.8 ppb (43) | 16.7 ppb (15) | N/A | 30.0 ppb (28) | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 | |
| Sept. 16, 2019, 7 p.m. | 51.8 ppb (48) | 17.8 ppb (16) | N/A | 34.0 ppb (31) | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 | |
| Sept. 16, 2019, 6 p.m. | 79.5 ppb (77) | 32.4 ppb (30) | N/A | 47.0 ppb (44) | N/A | N/A | N/A | N/A | N/A | N/A | 77.0 | |
| Sept. 16, 2019, 5 p.m. | 61.0 ppb (57) | 26.6 ppb (25) | N/A | 34.0 ppb (31) | N/A | N/A | N/A | N/A | N/A | N/A | 57.0 | |
| Sept. 16, 2019, 4 p.m. | 117.3 ppb (103) | 68.6 ppb (66) | N/A | 49.0 ppb (45) | N/A | N/A | N/A | N/A | N/A | N/A | 103.0 | |
| Sept. 16, 2019, 3 p.m. | 112.4 ppb (102) | 75.2 ppb (73) | N/A | 37.0 ppb (34) | N/A | N/A | N/A | N/A | N/A | N/A | 102.0 | |
| Sept. 16, 2019, 2 p.m. | 103.9 ppb (101) | 71.4 ppb (69) | N/A | 32.0 ppb (30) | N/A | N/A | N/A | N/A | N/A | N/A | 101.0 | |
| Sept. 16, 2019, 1 p.m. | 77.0 ppb (74) | 46.7 ppb (43) | N/A | 30.0 ppb (28) | N/A | N/A | N/A | N/A | N/A | N/A | 74.0 | |
| Sept. 16, 2019, noon | 114.1 ppb (103) | 80.2 ppb (78) | N/A | 34.0 ppb (31) | N/A | N/A | N/A | N/A | N/A | N/A | 103.0 | |
| Sept. 16, 2019, 11 a.m. | 35.3 ppb (33) | 10.4 ppb (10) | N/A | 25.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 | |
| Sept. 16, 2019, 10 a.m. | 34.9 ppb (32) | 8.1 ppb (8) | N/A | 27.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 | |
| Sept. 16, 2019, 9 a.m. | 33.6 ppb (31) | 4.4 ppb (4) | N/A | 29.0 ppb (27) | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 | |
| Sept. 16, 2019, 8 a.m. | 42.7 ppb (40) | 9.0 ppb (8) | N/A | 34.0 ppb (31) | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 | |
| Sept. 16, 2019, 7 a.m. | 35.7 ppb (33) | 2.4 ppb (2) | N/A | 33.0 ppb (31) | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 | |
| Sept. 16, 2019, 6 a.m. | 52.9 ppb (49) | 16.6 ppb (15) | N/A | 36.0 ppb (33) | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 | |
| Sept. 16, 2019, 5 a.m. | 16.4 ppb (15) | 0.1 ppb (0) | N/A | 16.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 | |
| Sept. 16, 2019, 4 a.m. | 20.6 ppb (19) | 0.5 ppb (0) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 | |
| Sept. 16, 2019, 3 a.m. | 35.5 ppb (33) | 7.6 ppb (7) | N/A | 28.0 ppb (26) | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 | |
| Sept. 16, 2019, 2 a.m. | 31.8 ppb (29) | 6.0 ppb (6) | N/A | 26.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 | |
| Sept. 16, 2019, 1 a.m. | 24.6 ppb (23) | 5.2 ppb (5) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 | |
| Sept. 16, 2019, midnight | 22.2 ppb (21) | 4.3 ppb (4) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 | |
| Sept. 15, 2019, 11 p.m. | 23.2 ppb (21) | 5.1 ppb (5) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 | |
| Sept. 15, 2019, 10 p.m. | 21.1 ppb (20) | 5.0 ppb (5) | N/A | 16.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 | |
| Sept. 15, 2019, 9 p.m. | 19.2 ppb (18) | 4.2 ppb (4) | N/A | 15.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 | |
| Sept. 15, 2019, 8 p.m. | 20.3 ppb (19) | 4.3 ppb (4) | N/A | 16.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 | |
| Sept. 15, 2019, 7 p.m. | 11.4 ppb (11) | 2.3 ppb (2) | N/A | 9.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 | |
| Sept. 15, 2019, 6 p.m. | 24.0 ppb (22) | 4.5 ppb (4) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 | |
| Sept. 15, 2019, 5 p.m. | 42.5 ppb (39) | 9.8 ppb (9) | N/A | 33.0 ppb (31) | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 | |
| Sept. 15, 2019, 4 p.m. | 52.1 ppb (48) | 15.1 ppb (14) | N/A | 37.0 ppb (34) | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 | |
| Sept. 15, 2019, 3 p.m. | 78.8 ppb (76) | 34.8 ppb (32) | N/A | 44.0 ppb (41) | N/A | N/A | N/A | N/A | N/A | N/A | 76.0 | |
| Sept. 15, 2019, 2 p.m. | 74.1 ppb (71) | 38.5 ppb (36) | N/A | 36.0 ppb (33) | N/A | N/A | N/A | N/A | N/A | N/A | 71.0 | |
| Sept. 15, 2019, 1 p.m. | 57.5 ppb (54) | 16.9 ppb (16) | N/A | 41.0 ppb (38) | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 | |
| Sept. 15, 2019, noon | 53.8 ppb (50) | 13.9 ppb (13) | N/A | 40.0 ppb (37) | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 | |
| Sept. 15, 2019, 11 a.m. | 51.3 ppb (48) | 11.6 ppb (11) | N/A | 40.0 ppb (37) | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 | |
| Sept. 15, 2019, 10 a.m. | 53.8 ppb (50) | 13.0 ppb (12) | N/A | 41.0 ppb (38) | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 | |
| Sept. 15, 2019, 9 a.m. | 55.0 ppb (51) | 13.8 ppb (13) | N/A | 41.0 ppb (38) | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 | |
| Sept. 15, 2019, 8 a.m. | 49.0 ppb (45) | 7.0 ppb (6) | N/A | 42.0 ppb (39) | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 | |
| Sept. 15, 2019, 7 a.m. | 36.3 ppb (34) | 0.6 ppb (1) | N/A | 36.0 ppb (33) | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 | |
| Sept. 15, 2019, 6 a.m. | 28.1 ppb (26) | 0.7 ppb (1) | N/A | 27.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 | |
| Sept. 15, 2019, 5 a.m. | 22.3 ppb (21) | 0.0 ppb (0) | N/A | 22.0 ppb (20) | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 | |
| Sept. 15, 2019, 4 a.m. | 30.6 ppb (28) | 2.4 ppb (2) | N/A | 28.0 ppb (26) | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 | |
| Sept. 15, 2019, 3 a.m. | 30.9 ppb (29) | 4.7 ppb (4) | N/A | 26.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 | |
| Sept. 15, 2019, 2 a.m. | 28.5 ppb (26) | 4.0 ppb (4) | N/A | 24.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 | |
| Sept. 15, 2019, 1 a.m. | 26.4 ppb (24) | 2.3 ppb (2) | N/A | 24.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 | |
| Sept. 15, 2019, midnight | 24.0 ppb (22) | 2.0 ppb (2) | N/A | 22.0 ppb (20) | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 | |
| Sept. 14, 2019, 11 p.m. | 24.3 ppb (23) | 2.4 ppb (2) | N/A | 22.0 ppb (20) | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 | |
| Sept. 14, 2019, 10 p.m. | 11.9 ppb (11) | 0.8 ppb (1) | N/A | 11.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 | |
| Sept. 14, 2019, 9 p.m. | 18.3 ppb (17) | 1.9 ppb (2) | N/A | 16.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 | |
| Sept. 14, 2019, 8 p.m. | 18.4 ppb (17) | 1.7 ppb (2) | N/A | 17.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 | |
| Sept. 14, 2019, 7 p.m. | 23.8 ppb (22) | 3.0 ppb (3) | N/A | 21.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 | |
| Sept. 14, 2019, 6 p.m. | 30.0 ppb (28) | 4.9 ppb (5) | N/A | 25.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 | |
| Sept. 14, 2019, 5 p.m. | 47.9 ppb (44) | 10.1 ppb (9) | N/A | 38.0 ppb (35) | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 | |
| Sept. 14, 2019, 4 p.m. | 83.5 ppb (81) | 32.3 ppb (30) | N/A | 51.0 ppb (47) | N/A | N/A | N/A | N/A | N/A | N/A | 81.0 | |
| Sept. 14, 2019, 3 p.m. | 118.3 ppb (103) | 64.3 ppb (61) | N/A | 54.0 ppb (50) | N/A | N/A | N/A | N/A | N/A | N/A | 103.0 | |
| Sept. 14, 2019, 2 p.m. | 106.5 ppb (101) | 60.7 ppb (57) | N/A | 46.0 ppb (43) | N/A | N/A | N/A | N/A | N/A | N/A | 101.0 | |
| Sept. 14, 2019, 1 p.m. | 107.6 ppb (101) | 63.3 ppb (60) | N/A | 44.0 ppb (41) | N/A | N/A | N/A | N/A | N/A | N/A | 101.0 | |
| Sept. 14, 2019, noon | 62.1 ppb (59) | 21.0 ppb (19) | N/A | 41.0 ppb (38) | N/A | N/A | N/A | N/A | N/A | N/A | 59.0 | |
| Sept. 14, 2019, 11 a.m. | 66.8 ppb (64) | 25.4 ppb (24) | N/A | 41.0 ppb (38) | N/A | N/A | N/A | N/A | N/A | N/A | 64.0 | |
| Sept. 14, 2019, 10 a.m. | 56.3 ppb (52) | 17.6 ppb (16) | N/A | 39.0 ppb (36) | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 | |
| Sept. 14, 2019, 9 a.m. | 64.3 ppb (61) | 25.1 ppb (23) | N/A | 39.0 ppb (36) | N/A | N/A | N/A | N/A | N/A | N/A | 61.0 | |
| Sept. 14, 2019, 8 a.m. | 74.3 ppb (72) | 28.2 ppb (26) | N/A | 46.0 ppb (43) | N/A | N/A | N/A | N/A | N/A | N/A | 72.0 | |
| Sept. 14, 2019, 7 a.m. | 77.4 ppb (75) | 29.8 ppb (28) | N/A | 48.0 ppb (44) | N/A | N/A | N/A | N/A | N/A | N/A | 75.0 | |
| Sept. 14, 2019, 6 a.m. | 36.1 ppb (33) | 1.7 ppb (2) | N/A | 34.0 ppb (31) | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 | |
| Sept. 14, 2019, 5 a.m. | 54.5 ppb (51) | 11.6 ppb (11) | N/A | 43.0 ppb (40) | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 | |
| Sept. 14, 2019, 4 a.m. | 73.4 ppb (71) | 25.2 ppb (23) | N/A | 48.0 ppb (44) | N/A | N/A | N/A | N/A | N/A | N/A | 71.0 | |
| Sept. 14, 2019, 3 a.m. | 65.3 ppb (62) | 18.5 ppb (17) | N/A | 47.0 ppb (44) | N/A | N/A | N/A | N/A | N/A | N/A | 62.0 | |
| Sept. 14, 2019, 2 a.m. | 52.3 ppb (48) | 10.0 ppb (9) | N/A | 42.0 ppb (39) | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 | |
| Sept. 14, 2019, 1 a.m. | 34.6 ppb (32) | 5.5 ppb (5) | N/A | 29.0 ppb (27) | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 | |
| Sept. 14, 2019, midnight | 56.3 ppb (52) | 10.9 ppb (10) | N/A | 45.0 ppb (42) | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 | |
| Sept. 13, 2019, 11 p.m. | 45.8 ppb (42) | 7.6 ppb (7) | N/A | 38.0 ppb (35) | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 | |
| Sept. 13, 2019, 10 p.m. | 47.1 ppb (44) | 8.0 ppb (7) | N/A | 39.0 ppb (36) | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 | |
| Sept. 13, 2019, 9 p.m. | 49.7 ppb (46) | 8.5 ppb (8) | N/A | 41.0 ppb (38) | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 | |
| Sept. 13, 2019, 8 p.m. | 64.1 ppb (61) | 15.8 ppb (15) | N/A | 48.0 ppb (44) | N/A | N/A | N/A | N/A | N/A | N/A | 61.0 | |
| Sept. 13, 2019, 7 p.m. | 46.5 ppb (43) | 11.8 ppb (11) | N/A | 35.0 ppb (32) | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 | |
| Sept. 13, 2019, 6 p.m. | 61.5 ppb (58) | 18.9 ppb (18) | N/A | 43.0 ppb (40) | N/A | N/A | N/A | N/A | N/A | N/A | 58.0 | |
| Sept. 13, 2019, 5 p.m. | 83.9 ppb (82) | 35.1 ppb (32) | N/A | 49.0 ppb (45) | N/A | N/A | N/A | N/A | N/A | N/A | 82.0 |