Mexicali MX, MX: 32.6336, -115.5042
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sept. 18, 2019, 1 a.m. | N/A | 6.7 ppb (6) | N/A | N/A | N/A | N/A | 16.0 ppb (12) | N/A | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Sept. 18, 2019, midnight | N/A | 6.9 ppb (6) | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Sept. 17, 2019, 11 p.m. | N/A | 8.2 ppb (8) | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (29) | 29.0 | |
| Sept. 17, 2019, 10 p.m. | N/A | 8.3 ppb (8) | N/A | N/A | N/A | N/A | 49.0 ppb (38) | N/A | N/A | 5.0 μg/m3 (21) | 38.0 | |
| Sept. 17, 2019, 9 p.m. | N/A | 8.8 ppb (8) | N/A | N/A | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 17, 2019, 8 p.m. | N/A | 7.7 ppb (7) | N/A | N/A | N/A | N/A | 49.0 ppb (38) | N/A | N/A | 7.0 μg/m3 (29) | 38.0 | |
| Sept. 17, 2019, 7 p.m. | N/A | 8.8 ppb (8) | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 17, 2019, 6 p.m. | N/A | 13.0 ppb (12) | N/A | 4.0 ppb (4) | N/A | N/A | 40.0 ppb (31) | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Sept. 17, 2019, 5 p.m. | N/A | 14.2 ppb (13) | N/A | 7.0 ppb (6) | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Sept. 17, 2019, 4 p.m. | N/A | 12.6 ppb (12) | N/A | 4.0 ppb (4) | N/A | N/A | 39.0 ppb (30) | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Sept. 17, 2019, 3 p.m. | N/A | 22.0 ppb (20) | N/A | 10.0 ppb (9) | N/A | N/A | 20.0 ppb (15) | N/A | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Sept. 17, 2019, 2 p.m. | N/A | 19.3 ppb (18) | N/A | 9.0 ppb (8) | N/A | N/A | 22.0 ppb (17) | N/A | N/A | 23.0 μg/m3 (73) | 73.0 | |
| Sept. 17, 2019, 1 p.m. | N/A | 9.2 ppb (9) | N/A | 8.0 ppb (7) | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Sept. 17, 2019, noon | N/A | 8.2 ppb (8) | N/A | 8.0 ppb (7) | N/A | N/A | 6.0 ppb (5) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Sept. 17, 2019, 11 a.m. | N/A | 7.3 ppb (7) | N/A | 3.0 ppb (3) | N/A | N/A | 22.0 ppb (17) | N/A | N/A | 24.0 μg/m3 (76) | 76.0 | |
| Sept. 17, 2019, 10 a.m. | N/A | 8.5 ppb (8) | N/A | 8.0 ppb (7) | N/A | N/A | 40.0 ppb (31) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 17, 2019, 9 a.m. | N/A | 8.7 ppb (8) | N/A | 7.0 ppb (6) | N/A | N/A | 34.0 ppb (26) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| Sept. 17, 2019, 8 a.m. | N/A | 6.7 ppb (6) | N/A | N/A | N/A | N/A | 22.0 ppb (17) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 17, 2019, 7 a.m. | N/A | 7.2 ppb (7) | N/A | N/A | N/A | N/A | 20.0 ppb (15) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 17, 2019, 6 a.m. | N/A | 6.5 ppb (6) | N/A | N/A | N/A | N/A | 8.0 ppb (6) | N/A | N/A | 7.0 μg/m3 (29) | 29.0 | |
| Sept. 17, 2019, 5 a.m. | N/A | 7.3 ppb (7) | N/A | N/A | N/A | N/A | 21.0 ppb (16) | N/A | N/A | 7.0 μg/m3 (29) | 29.0 | |
| Sept. 17, 2019, 4 a.m. | N/A | 6.5 ppb (6) | N/A | N/A | N/A | N/A | 39.0 ppb (30) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| Sept. 17, 2019, 3 a.m. | N/A | 12.4 ppb (11) | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 17, 2019, 2 a.m. | N/A | 6.5 ppb (6) | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Sept. 17, 2019, 1 a.m. | N/A | 6.5 ppb (6) | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Sept. 17, 2019, midnight | N/A | 6.3 ppb (6) | N/A | N/A | N/A | N/A | 37.0 ppb (28) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 16, 2019, 11 p.m. | N/A | 6.6 ppb (6) | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 16, 2019, 10 p.m. | N/A | 6.9 ppb (6) | N/A | 0.0 ppb (0) | N/A | N/A | 54.0 ppb (42) | N/A | N/A | 8.0 μg/m3 (33) | 42.0 | |
| Sept. 16, 2019, 9 p.m. | N/A | 8.4 ppb (8) | N/A | -3.0 ppb (0) | N/A | N/A | 32.0 ppb (25) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| Sept. 16, 2019, 8 p.m. | N/A | 8.1 ppb (8) | N/A | N/A | N/A | N/A | 20.0 ppb (15) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Sept. 16, 2019, 7 p.m. | N/A | 8.3 ppb (8) | N/A | N/A | N/A | N/A | 22.0 ppb (17) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| Sept. 16, 2019, 6 p.m. | N/A | 11.3 ppb (10) | N/A | -5.0 ppb (0) | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 16, 2019, 5 p.m. | N/A | 9.1 ppb (8) | N/A | N/A | N/A | N/A | 41.0 ppb (32) | N/A | N/A | 7.0 μg/m3 (29) | 32.0 | |
| Sept. 16, 2019, 4 p.m. | N/A | 13.4 ppb (12) | N/A | N/A | N/A | N/A | 29.0 ppb (22) | N/A | N/A | 17.0 μg/m3 (61) | 61.0 | |
| Sept. 16, 2019, 3 p.m. | N/A | 12.5 ppb (12) | N/A | N/A | N/A | N/A | 6.0 ppb (5) | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Sept. 16, 2019, 2 p.m. | N/A | 12.4 ppb (11) | N/A | N/A | N/A | N/A | 12.0 ppb (9) | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Sept. 16, 2019, 1 p.m. | N/A | 8.8 ppb (8) | N/A | N/A | N/A | N/A | 34.0 ppb (26) | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| Sept. 16, 2019, noon | N/A | 7.4 ppb (7) | N/A | N/A | N/A | N/A | 18.0 ppb (14) | N/A | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Sept. 16, 2019, 11 a.m. | N/A | 10.4 ppb (10) | N/A | 2.0 ppb (2) | N/A | N/A | 4.0 ppb (3) | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Sept. 16, 2019, 10 a.m. | N/A | 8.9 ppb (8) | N/A | -3.0 ppb (0) | N/A | N/A | 21.0 ppb (16) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 16, 2019, 9 a.m. | N/A | 10.5 ppb (10) | N/A | 8.0 ppb (7) | N/A | N/A | 26.0 ppb (20) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| Sept. 16, 2019, 8 a.m. | N/A | 9.5 ppb (9) | N/A | 6.0 ppb (6) | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| Sept. 16, 2019, 7 a.m. | N/A | 14.1 ppb (13) | N/A | 14.0 ppb (13) | N/A | N/A | 26.0 ppb (20) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 16, 2019, 6 a.m. | N/A | 12.0 ppb (11) | N/A | 6.0 ppb (6) | N/A | N/A | 15.0 ppb (12) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 16, 2019, 5 a.m. | N/A | 12.9 ppb (12) | N/A | 10.0 ppb (9) | N/A | N/A | 26.0 ppb (20) | N/A | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Sept. 16, 2019, 4 a.m. | N/A | 13.5 ppb (12) | N/A | 2.0 ppb (2) | N/A | N/A | 34.0 ppb (26) | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Sept. 16, 2019, 3 a.m. | N/A | 10.1 ppb (9) | N/A | -3.0 ppb (0) | N/A | N/A | 6.0 ppb (5) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 16, 2019, 2 a.m. | N/A | 11.5 ppb (11) | N/A | -4.0 ppb (0) | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| Sept. 16, 2019, 1 a.m. | N/A | 9.1 ppb (8) | N/A | N/A | N/A | N/A | 10.0 ppb (8) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| Sept. 16, 2019, midnight | N/A | 9.6 ppb (9) | N/A | N/A | N/A | N/A | 50.0 ppb (38) | N/A | N/A | 6.0 μg/m3 (25) | 38.0 | |
| Sept. 15, 2019, 11 p.m. | N/A | 8.5 ppb (8) | N/A | N/A | N/A | N/A | 6.0 ppb (5) | N/A | N/A | 5.0 μg/m3 (21) | 21.0 | |
| Sept. 15, 2019, 10 p.m. | N/A | 10.2 ppb (9) | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | N/A | 4.0 μg/m3 (17) | 31.0 | |
| Sept. 15, 2019, 9 p.m. | N/A | 8.4 ppb (8) | N/A | N/A | N/A | N/A | 47.0 ppb (36) | N/A | N/A | 4.0 μg/m3 (17) | 36.0 | |
| Sept. 15, 2019, 8 p.m. | N/A | 8.4 ppb (8) | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | N/A | 6.0 μg/m3 (25) | 31.0 | |
| Sept. 15, 2019, 7 p.m. | N/A | 9.5 ppb (9) | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | N/A | 4.0 μg/m3 (17) | 25.0 | |
| Sept. 15, 2019, 6 p.m. | N/A | 10.8 ppb (10) | N/A | -2.0 ppb (0) | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 7.0 μg/m3 (29) | 29.0 | |
| Sept. 15, 2019, 5 p.m. | N/A | 9.6 ppb (9) | N/A | N/A | N/A | N/A | 56.0 ppb (43) | N/A | N/A | 9.0 μg/m3 (38) | 43.0 | |
| Sept. 15, 2019, 4 p.m. | N/A | 9.1 ppb (8) | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 15, 2019, 3 p.m. | N/A | 12.0 ppb (11) | N/A | 1.0 ppb (1) | N/A | N/A | 37.0 ppb (28) | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Sept. 15, 2019, 2 p.m. | N/A | 8.4 ppb (8) | N/A | -3.0 ppb (0) | N/A | N/A | 11.0 ppb (8) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Sept. 15, 2019, 1 p.m. | N/A | 7.1 ppb (7) | N/A | 1.0 ppb (1) | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Sept. 15, 2019, noon | N/A | 7.7 ppb (7) | N/A | 2.0 ppb (2) | N/A | N/A | 61.0 ppb (47) | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Sept. 15, 2019, 11 a.m. | N/A | 6.5 ppb (6) | N/A | -1.0 ppb (0) | N/A | N/A | 42.0 ppb (32) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 15, 2019, 10 a.m. | N/A | 8.2 ppb (8) | N/A | -1.0 ppb (0) | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 15, 2019, 9 a.m. | N/A | 6.8 ppb (6) | N/A | -2.0 ppb (0) | N/A | N/A | 45.0 ppb (35) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 15, 2019, 8 a.m. | N/A | 7.6 ppb (7) | N/A | -2.0 ppb (0) | N/A | N/A | 25.0 ppb (19) | N/A | N/A | 20.0 μg/m3 (67) | 67.0 | |
| Sept. 15, 2019, 7 a.m. | N/A | 41.3 ppb (38) | N/A | 21.0 ppb (19) | N/A | N/A | 11.0 ppb (8) | N/A | N/A | 46.0 μg/m3 (126) | 126.0 | |
| Sept. 15, 2019, 6 a.m. | N/A | 38.0 ppb (35) | N/A | 19.0 ppb (18) | N/A | N/A | 35.0 ppb (27) | N/A | N/A | 30.0 μg/m3 (88) | 88.0 | |
| Sept. 15, 2019, 5 a.m. | N/A | 15.0 ppb (14) | N/A | 13.0 ppb (12) | N/A | N/A | 53.0 ppb (41) | N/A | N/A | 32.0 μg/m3 (93) | 93.0 | |
| Sept. 15, 2019, 4 a.m. | N/A | 10.4 ppb (10) | N/A | 7.0 ppb (6) | N/A | N/A | 16.0 ppb (12) | N/A | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Sept. 15, 2019, 3 a.m. | N/A | 22.6 ppb (21) | N/A | 32.0 ppb (30) | N/A | N/A | 55.0 ppb (42) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Sept. 15, 2019, 2 a.m. | N/A | 17.8 ppb (16) | N/A | 22.0 ppb (20) | N/A | N/A | 21.0 ppb (16) | N/A | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Sept. 15, 2019, 1 a.m. | N/A | 9.7 ppb (9) | N/A | 5.0 ppb (5) | N/A | N/A | 14.0 ppb (11) | N/A | N/A | 7.0 μg/m3 (29) | 29.0 | |
| Sept. 15, 2019, midnight | N/A | 8.5 ppb (8) | N/A | -2.0 ppb (0) | N/A | N/A | 45.0 ppb (35) | N/A | N/A | 8.0 μg/m3 (33) | 35.0 | |
| Sept. 14, 2019, 11 p.m. | N/A | 9.9 ppb (9) | N/A | 0.0 ppb (0) | N/A | N/A | 32.0 ppb (25) | N/A | N/A | 7.0 μg/m3 (29) | 29.0 | |
| Sept. 14, 2019, 10 p.m. | N/A | 8.1 ppb (8) | N/A | -3.0 ppb (0) | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| Sept. 14, 2019, 9 p.m. | N/A | 8.9 ppb (8) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 14, 2019, 8 p.m. | N/A | 6.9 ppb (6) | N/A | -4.0 ppb (0) | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Sept. 14, 2019, 7 p.m. | N/A | 7.2 ppb (7) | N/A | -3.0 ppb (0) | N/A | N/A | 58.0 ppb (45) | N/A | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Sept. 14, 2019, 6 p.m. | N/A | 7.2 ppb (7) | N/A | -3.0 ppb (0) | N/A | N/A | 40.0 ppb (31) | N/A | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Sept. 14, 2019, 5 p.m. | N/A | 11.4 ppb (11) | N/A | 7.0 ppb (6) | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Sept. 14, 2019, 4 p.m. | N/A | 13.9 ppb (13) | N/A | 18.0 ppb (17) | N/A | N/A | 54.0 ppb (42) | N/A | N/A | 29.0 μg/m3 (86) | 86.0 | |
| Sept. 14, 2019, 3 p.m. | N/A | 67.5 ppb (64) | N/A | 33.0 ppb (31) | N/A | N/A | 13.0 ppb (10) | N/A | N/A | 51.0 μg/m3 (139) | 139.0 | |
| Sept. 14, 2019, 2 p.m. | N/A | 40.6 ppb (38) | N/A | 22.0 ppb (20) | N/A | N/A | 26.0 ppb (20) | N/A | N/A | 32.0 μg/m3 (93) | 93.0 | |
| Sept. 14, 2019, 1 p.m. | N/A | 8.1 ppb (8) | N/A | 4.0 ppb (4) | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 38.0 μg/m3 (106) | 106.0 | |
| Sept. 14, 2019, noon | N/A | 6.2 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | 24.0 ppb (18) | N/A | N/A | 67.0 μg/m3 (156) | 156.0 | |
| Sept. 14, 2019, 11 a.m. | N/A | 8.3 ppb (8) | N/A | -2.0 ppb (0) | N/A | N/A | 45.0 ppb (35) | N/A | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Sept. 14, 2019, 10 a.m. | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | 59.0 ppb (45) | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Sept. 14, 2019, 9 a.m. | N/A | 15.5 ppb (14) | N/A | 27.0 ppb (25) | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 29.0 μg/m3 (86) | 86.0 | |
| Sept. 14, 2019, 8 a.m. | N/A | 75.8 ppb (73) | N/A | 31.0 ppb (29) | N/A | N/A | 40.0 ppb (31) | N/A | N/A | 49.0 μg/m3 (134) | 134.0 | |
| Sept. 14, 2019, 7 a.m. | N/A | 130.2 ppb (106) | N/A | 38.0 ppb (35) | N/A | N/A | 15.0 ppb (12) | N/A | N/A | 69.0 μg/m3 (157) | 157.0 | |
| Sept. 14, 2019, 6 a.m. | N/A | 175.1 ppb (114) | N/A | 42.0 ppb (39) | N/A | N/A | 56.0 ppb (43) | N/A | N/A | 66.0 μg/m3 (156) | 156.0 | |
| Sept. 14, 2019, 5 a.m. | N/A | 198.7 ppb (119) | N/A | 46.0 ppb (43) | N/A | N/A | 33.0 ppb (25) | N/A | N/A | 60.0 μg/m3 (152) | 152.0 | |
| Sept. 14, 2019, 4 a.m. | N/A | 132.4 ppb (106) | N/A | 50.0 ppb (46) | N/A | N/A | 59.0 ppb (45) | N/A | N/A | 34.0 μg/m3 (97) | 106.0 | |
| Sept. 14, 2019, 3 a.m. | N/A | 80.2 ppb (78) | N/A | 47.0 ppb (44) | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 25.0 μg/m3 (78) | 78.0 | |
| Sept. 14, 2019, 2 a.m. | N/A | 6.7 ppb (6) | N/A | -2.0 ppb (0) | N/A | N/A | 14.0 ppb (11) | N/A | N/A | 7.0 μg/m3 (29) | 29.0 | |
| Sept. 14, 2019, 1 a.m. | N/A | 6.7 ppb (6) | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| Sept. 14, 2019, midnight | N/A | 7.0 ppb (6) | N/A | N/A | N/A | N/A | 20.0 ppb (15) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 13, 2019, 11 p.m. | N/A | 6.7 ppb (6) | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| Sept. 13, 2019, 10 p.m. | N/A | 7.9 ppb (7) | N/A | N/A | N/A | N/A | 26.0 ppb (20) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 13, 2019, 9 p.m. | N/A | 7.1 ppb (7) | N/A | N/A | N/A | N/A | 32.0 ppb (25) | N/A | N/A | 7.0 μg/m3 (29) | 29.0 | |
| Sept. 13, 2019, 8 p.m. | N/A | 7.6 ppb (7) | N/A | N/A | N/A | N/A | 42.0 ppb (32) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 13, 2019, 7 p.m. | N/A | 7.0 ppb (6) | N/A | N/A | N/A | N/A | 25.0 ppb (19) | N/A | N/A | 7.0 μg/m3 (29) | 29.0 | |
| Sept. 13, 2019, 6 p.m. | N/A | 7.0 ppb (6) | N/A | N/A | N/A | N/A | 33.0 ppb (25) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| Sept. 13, 2019, 5 p.m. | N/A | 143.1 ppb (108) | N/A | -4.0 ppb (0) | N/A | N/A | 17.0 ppb (13) | N/A | N/A | 9.0 μg/m3 (38) | 108.0 | |
| Sept. 13, 2019, 4 p.m. | N/A | 13.6 ppb (13) | N/A | 4.0 ppb (4) | N/A | N/A | 68.0 ppb (52) | N/A | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Sept. 13, 2019, 3 p.m. | N/A | 92.5 ppb (91) | N/A | 20.0 ppb (19) | N/A | N/A | 28.0 ppb (22) | N/A | N/A | 38.0 μg/m3 (106) | 106.0 | |
| Sept. 13, 2019, 2 p.m. | N/A | 9.6 ppb (9) | N/A | 3.0 ppb (3) | N/A | N/A | 66.0 ppb (51) | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Sept. 13, 2019, 1 p.m. | N/A | 5.6 ppb (5) | N/A | N/A | N/A | N/A | 28.0 ppb (22) | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| Sept. 13, 2019, noon | N/A | 5.5 ppb (5) | N/A | N/A | N/A | N/A | 18.0 ppb (14) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 13, 2019, 11 a.m. | N/A | 5.7 ppb (5) | N/A | N/A | N/A | N/A | 10.0 ppb (8) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 13, 2019, 10 a.m. | N/A | 5.4 ppb (5) | N/A | N/A | N/A | N/A | 20.0 ppb (15) | N/A | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Sept. 13, 2019, 9 a.m. | N/A | 5.4 ppb (5) | N/A | -3.0 ppb (0) | N/A | N/A | -1.0 ppb (0) | N/A | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Sept. 13, 2019, 8 a.m. | N/A | 38.4 ppb (36) | N/A | 19.0 ppb (18) | N/A | N/A | 23.0 ppb (18) | N/A | N/A | 41.0 μg/m3 (114) | 114.0 | |
| Sept. 13, 2019, 7 a.m. | N/A | 46.2 ppb (43) | N/A | 25.0 ppb (23) | N/A | N/A | 31.0 ppb (24) | N/A | N/A | 72.0 μg/m3 (159) | 159.0 | |
| Sept. 13, 2019, 6 a.m. | N/A | 13.4 ppb (12) | N/A | 27.0 ppb (25) | N/A | N/A | 45.0 ppb (35) | N/A | N/A | 54.0 μg/m3 (146) | 146.0 | |
| Sept. 13, 2019, 5 a.m. | N/A | 7.7 ppb (7) | N/A | 28.0 ppb (26) | N/A | N/A | 10.0 ppb (8) | N/A | N/A | 54.0 μg/m3 (146) | 146.0 | |
| Sept. 13, 2019, 4 a.m. | N/A | 5.9 ppb (5) | N/A | 18.0 ppb (17) | N/A | N/A | 71.0 ppb (55) | N/A | N/A | 54.0 μg/m3 (146) | 146.0 | |
| Sept. 13, 2019, 3 a.m. | N/A | 6.0 ppb (6) | N/A | 3.0 ppb (3) | N/A | N/A | 45.0 ppb (35) | N/A | N/A | 35.0 μg/m3 (99) | 99.0 | |
| Sept. 13, 2019, 2 a.m. | N/A | 5.9 ppb (5) | N/A | N/A | N/A | N/A | 50.0 ppb (38) | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Sept. 13, 2019, 1 a.m. | N/A | 6.2 ppb (6) | N/A | N/A | N/A | N/A | 20.0 ppb (15) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 13, 2019, midnight | N/A | 6.9 ppb (6) | N/A | N/A | N/A | N/A | 23.0 ppb (18) | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| Sept. 12, 2019, 11 p.m. | N/A | 6.9 ppb (6) | N/A | N/A | N/A | N/A | 40.0 ppb (31) | N/A | N/A | 6.0 μg/m3 (25) | 31.0 | |
| Sept. 12, 2019, 10 p.m. | N/A | 7.3 ppb (7) | N/A | N/A | N/A | N/A | 45.0 ppb (35) | N/A | N/A | 7.0 μg/m3 (29) | 35.0 | |
| Sept. 12, 2019, 9 p.m. | N/A | 8.1 ppb (8) | N/A | N/A | N/A | N/A | 27.0 ppb (21) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 12, 2019, 8 p.m. | N/A | 7.2 ppb (7) | N/A | N/A | N/A | N/A | 20.0 ppb (15) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 12, 2019, 7 p.m. | N/A | 6.1 ppb (6) | N/A | N/A | N/A | N/A | 30.0 ppb (23) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 12, 2019, 6 p.m. | N/A | 151.0 ppb (110) | N/A | -5.0 ppb (0) | N/A | N/A | 55.0 ppb (42) | N/A | N/A | N/A | 110.0 | |
| Sept. 12, 2019, 5 p.m. | N/A | 206.0 ppb (120) | N/A | 9.0 ppb (8) | N/A | N/A | 40.0 ppb (31) | N/A | N/A | 14.0 μg/m3 (54) | 120.0 | |
| Sept. 12, 2019, 4 p.m. | N/A | 11.4 ppb (11) | N/A | 22.0 ppb (20) | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Sept. 12, 2019, 3 p.m. | N/A | 67.2 ppb (64) | N/A | 36.0 ppb (33) | N/A | N/A | 6.0 ppb (5) | N/A | N/A | 52.0 μg/m3 (141) | 141.0 | |
| Sept. 12, 2019, 2 p.m. | N/A | 93.3 ppb (92) | N/A | 29.0 ppb (27) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 50.0 μg/m3 (136) | 136.0 | |
| Sept. 12, 2019, 1 p.m. | N/A | 20.8 ppb (19) | N/A | 28.0 ppb (26) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 35.0 μg/m3 (99) | 99.0 | |
| Sept. 12, 2019, noon | N/A | 17.5 ppb (16) | N/A | 28.0 ppb (26) | N/A | N/A | 3.0 ppb (2) | N/A | N/A | 28.0 μg/m3 (84) | 84.0 | |
| Sept. 12, 2019, 11 a.m. | N/A | 8.9 ppb (8) | N/A | 27.0 ppb (25) | N/A | N/A | 3.0 ppb (2) | N/A | N/A | 35.0 μg/m3 (99) | 99.0 | |
| Sept. 12, 2019, 10 a.m. | N/A | 7.0 ppb (6) | N/A | 21.0 ppb (19) | N/A | N/A | 9.0 ppb (7) | N/A | N/A | 30.0 μg/m3 (88) | 88.0 | |
| Sept. 12, 2019, 9 a.m. | N/A | 7.2 ppb (7) | N/A | 19.0 ppb (18) | N/A | N/A | 13.0 ppb (10) | N/A | N/A | 45.0 μg/m3 (124) | 124.0 | |
| Sept. 12, 2019, 8 a.m. | N/A | 10.2 ppb (9) | N/A | 29.0 ppb (27) | N/A | N/A | 6.0 ppb (5) | N/A | N/A | 23.0 μg/m3 (73) | 73.0 | |
| Sept. 12, 2019, 7 a.m. | N/A | 12.8 ppb (12) | N/A | 31.0 ppb (29) | N/A | N/A | 6.0 ppb (5) | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Sept. 12, 2019, 6 a.m. | N/A | 23.1 ppb (21) | N/A | 34.0 ppb (31) | N/A | N/A | 6.0 ppb (5) | N/A | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Sept. 12, 2019, 5 a.m. | N/A | 20.4 ppb (19) | N/A | 35.0 ppb (32) | N/A | N/A | 11.0 ppb (8) | N/A | N/A | 31.0 μg/m3 (90) | 90.0 | |
| Sept. 12, 2019, 4 a.m. | N/A | 15.9 ppb (15) | N/A | 48.0 ppb (44) | N/A | N/A | 17.0 ppb (13) | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Sept. 12, 2019, 3 a.m. | N/A | 6.6 ppb (6) | N/A | 29.0 ppb (27) | N/A | N/A | 42.0 ppb (32) | N/A | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Sept. 12, 2019, 2 a.m. | N/A | 6.7 ppb (6) | N/A | 10.0 ppb (9) | N/A | N/A | 75.0 ppb (58) | N/A | N/A | 4.0 μg/m3 (17) | 58.0 | |
| Sept. 12, 2019, 1 a.m. | N/A | 6.7 ppb (6) | N/A | 7.0 ppb (6) | N/A | N/A | 80.0 ppb (62) | N/A | N/A | 7.0 μg/m3 (29) | 62.0 | |
| Sept. 12, 2019, midnight | N/A | 7.5 ppb (7) | N/A | 7.0 ppb (6) | N/A | N/A | 79.0 ppb (62) | N/A | N/A | 10.0 μg/m3 (42) | 62.0 | |
| Sept. 11, 2019, 11 p.m. | N/A | 9.0 ppb (8) | N/A | 10.0 ppb (9) | N/A | N/A | 77.0 ppb (60) | N/A | N/A | 7.0 μg/m3 (29) | 60.0 | |
| Sept. 11, 2019, 10 p.m. | N/A | 6.9 ppb (6) | N/A | 5.0 ppb (5) | N/A | N/A | 79.0 ppb (62) | N/A | N/A | 7.0 μg/m3 (29) | 62.0 | |
| Sept. 11, 2019, 9 p.m. | N/A | 7.0 ppb (6) | N/A | 6.0 ppb (6) | N/A | N/A | 79.0 ppb (62) | N/A | N/A | 9.0 μg/m3 (38) | 62.0 | |
| Sept. 11, 2019, 8 p.m. | N/A | 8.9 ppb (8) | N/A | 9.0 ppb (8) | N/A | N/A | 70.0 ppb (54) | N/A | N/A | 8.0 μg/m3 (33) | 54.0 | |
| Sept. 11, 2019, 7 p.m. | N/A | 7.2 ppb (7) | N/A | 6.0 ppb (6) | N/A | N/A | 69.0 ppb (53) | N/A | N/A | 12.0 μg/m3 (50) | 53.0 | |
| Sept. 11, 2019, 6 p.m. | N/A | 7.0 ppb (6) | N/A | 6.0 ppb (6) | N/A | N/A | 65.0 ppb (50) | N/A | N/A | 9.0 μg/m3 (38) | 50.0 | |
| Sept. 11, 2019, 5 p.m. | N/A | 7.2 ppb (7) | N/A | 6.0 ppb (6) | N/A | N/A | 52.0 ppb (40) | N/A | N/A | 7.0 μg/m3 (29) | 40.0 | |
| Sept. 11, 2019, 4 p.m. | N/A | 8.7 ppb (8) | N/A | 11.0 ppb (10) | N/A | N/A | 40.0 ppb (31) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 11, 2019, 3 p.m. | N/A | 15.8 ppb (15) | N/A | 30.0 ppb (28) | N/A | N/A | 19.0 ppb (15) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 11, 2019, 2 p.m. | N/A | 9.2 ppb (9) | N/A | 22.0 ppb (20) | N/A | N/A | 24.0 ppb (18) | N/A | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Sept. 11, 2019, 1 p.m. | N/A | 6.7 ppb (6) | N/A | 13.0 ppb (12) | N/A | N/A | 38.0 ppb (29) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 11, 2019, noon | N/A | 6.7 ppb (6) | N/A | 10.0 ppb (9) | N/A | N/A | 41.0 ppb (32) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 11, 2019, 11 a.m. | N/A | 6.6 ppb (6) | N/A | 8.0 ppb (7) | N/A | N/A | 40.0 ppb (31) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| Sept. 11, 2019, 10 a.m. | N/A | 6.7 ppb (6) | N/A | 8.0 ppb (7) | N/A | N/A | 39.0 ppb (30) | N/A | N/A | 7.0 μg/m3 (29) | 30.0 | |
| Sept. 11, 2019, 9 a.m. | N/A | 6.9 ppb (6) | N/A | 10.0 ppb (9) | N/A | N/A | 35.0 ppb (27) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 11, 2019, 8 a.m. | N/A | 7.0 ppb (6) | N/A | 12.0 ppb (11) | N/A | N/A | 32.0 ppb (25) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Sept. 11, 2019, 7 a.m. | N/A | 6.6 ppb (6) | N/A | 12.0 ppb (11) | N/A | N/A | 35.0 ppb (27) | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| Sept. 11, 2019, 6 a.m. | N/A | 6.5 ppb (6) | N/A | 12.0 ppb (11) | N/A | N/A | 36.0 ppb (28) | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| Sept. 11, 2019, 5 a.m. | N/A | 6.5 ppb (6) | N/A | 9.0 ppb (8) | N/A | N/A | 42.0 ppb (32) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Sept. 11, 2019, 4 a.m. | N/A | 6.5 ppb (6) | N/A | 8.0 ppb (7) | N/A | N/A | 47.0 ppb (36) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| Sept. 11, 2019, 3 a.m. | N/A | 11.4 ppb (11) | N/A | 16.0 ppb (15) | N/A | N/A | 42.0 ppb (32) | N/A | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Sept. 11, 2019, 2 a.m. | N/A | 6.8 ppb (6) | N/A | 8.0 ppb (7) | N/A | N/A | 71.0 ppb (55) | N/A | N/A | 13.0 μg/m3 (52) | 55.0 |