Nezahualcóyotl MX, MX: 19.3919, -99.0281
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 17, 2018, 3 p.m. | N/A | N/A | N/A | 40.0 ppb (37) | N/A | 10.0 ppb (14) | 3.0 ppb (2) | 2.7 ppb (30) | N/A | 38.0 μg/m3 (106) | 106.0 | |
| Dec. 17, 2018, 2 p.m. | N/A | N/A | N/A | 32.0 ppb (30) | N/A | 6.0 ppb (9) | N/A | 2.2 ppb (24) | N/A | 36.0 μg/m3 (101) | 101.0 | |
| Dec. 17, 2018, 1 p.m. | N/A | N/A | N/A | 35.0 ppb (32) | N/A | 14.0 ppb (20) | 1.0 ppb (1) | 1.5 ppb (17) | N/A | 36.0 μg/m3 (101) | 101.0 | |
| Dec. 17, 2018, noon | N/A | N/A | N/A | 35.0 ppb (32) | N/A | 30.0 ppb (43) | 3.0 ppb (2) | 0.9 ppb (10) | N/A | 35.0 μg/m3 (99) | 99.0 | |
| Dec. 17, 2018, 11 a.m. | N/A | N/A | N/A | 32.0 ppb (30) | N/A | 46.0 ppb (55) | 6.0 ppb (5) | 0.7 ppb (8) | N/A | 32.0 μg/m3 (93) | 93.0 | |
| Dec. 17, 2018, 10 a.m. | N/A | N/A | N/A | 35.0 ppb (32) | N/A | 51.0 ppb (57) | 4.0 ppb (3) | 0.8 ppb (9) | N/A | 39.0 μg/m3 (109) | 109.0 | |
| Dec. 17, 2018, 9 a.m. | N/A | N/A | N/A | 36.0 ppb (33) | N/A | 50.0 ppb (57) | 6.0 ppb (5) | 0.8 ppb (9) | N/A | 31.0 μg/m3 (90) | 90.0 | |
| Dec. 17, 2018, 8 a.m. | N/A | N/A | N/A | 40.0 ppb (37) | N/A | 47.0 ppb (55) | 3.0 ppb (2) | 1.0 ppb (11) | N/A | 44.0 μg/m3 (121) | 121.0 | |
| Dec. 17, 2018, 7 a.m. | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 14.0 ppb (20) | 1.0 ppb (1) | 1.1 ppb (12) | N/A | N/A | 41.0 | |
| Dec. 17, 2018, 6 a.m. | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 6.0 ppb (9) | 1.0 ppb (1) | 1.6 ppb (18) | N/A | 30.0 μg/m3 (88) | 88.0 | |
| Dec. 17, 2018, 5 a.m. | N/A | N/A | N/A | 55.0 ppb (51) | N/A | 25.0 ppb (36) | 2.0 ppb (2) | 2.3 ppb (26) | N/A | N/A | 51.0 | |
| Dec. 17, 2018, 4 a.m. | N/A | N/A | N/A | 52.0 ppb (48) | N/A | 7.0 ppb (10) | 2.0 ppb (2) | 2.0 ppb (22) | N/A | 68.0 μg/m3 (157) | 157.0 | |
| Dec. 17, 2018, 3 a.m. | N/A | N/A | N/A | 50.0 ppb (46) | N/A | 10.0 ppb (14) | 7.0 ppb (5) | 1.2 ppb (13) | N/A | 47.0 μg/m3 (129) | 129.0 | |
| Dec. 17, 2018, 2 a.m. | N/A | N/A | N/A | 43.0 ppb (40) | N/A | 8.0 ppb (11) | 40.0 ppb (31) | 1.2 ppb (13) | N/A | 46.0 μg/m3 (126) | 126.0 | |
| Dec. 17, 2018, 1 a.m. | N/A | N/A | N/A | 40.0 ppb (37) | N/A | 6.0 ppb (9) | 54.0 ppb (42) | 1.1 ppb (12) | N/A | 34.0 μg/m3 (97) | 97.0 | |
| Dec. 17, 2018, midnight | N/A | N/A | N/A | 22.0 ppb (20) | N/A | 7.0 ppb (10) | 86.0 ppb (68) | 0.7 ppb (8) | N/A | 31.0 μg/m3 (90) | 90.0 | |
| Dec. 16, 2018, 11 p.m. | N/A | N/A | N/A | 17.0 ppb (16) | N/A | 7.0 ppb (10) | 91.0 ppb (72) | 0.6 ppb (7) | N/A | 31.0 μg/m3 (90) | 90.0 | |
| Dec. 16, 2018, 10 p.m. | N/A | N/A | N/A | 16.0 ppb (15) | N/A | 8.0 ppb (11) | 90.0 ppb (71) | 0.6 ppb (7) | N/A | 44.0 μg/m3 (121) | 121.0 | |
| Dec. 16, 2018, 9 p.m. | N/A | N/A | N/A | 17.0 ppb (16) | N/A | 11.0 ppb (16) | 85.0 ppb (67) | 0.6 ppb (7) | N/A | 46.0 μg/m3 (126) | 126.0 | |
| Dec. 16, 2018, 8 p.m. | N/A | N/A | N/A | 24.0 ppb (22) | N/A | 17.0 ppb (24) | 80.0 ppb (62) | 0.7 ppb (8) | N/A | 71.0 μg/m3 (158) | 158.0 | |
| Dec. 16, 2018, 7 p.m. | N/A | N/A | N/A | 25.0 ppb (23) | N/A | 19.0 ppb (27) | 73.0 ppb (57) | 0.8 ppb (9) | N/A | 88.0 μg/m3 (167) | 167.0 | |
| Dec. 16, 2018, 6 p.m. | N/A | N/A | N/A | 38.0 ppb (35) | N/A | 32.0 ppb (46) | 56.0 ppb (43) | 1.2 ppb (13) | N/A | 71.0 μg/m3 (158) | 158.0 | |
| Dec. 16, 2018, 5 p.m. | N/A | N/A | N/A | 38.0 ppb (35) | N/A | 32.0 ppb (46) | 32.0 ppb (25) | 1.3 ppb (14) | N/A | 56.0 μg/m3 (150) | 150.0 | |
| Dec. 16, 2018, 4 p.m. | N/A | N/A | N/A | 30.0 ppb (28) | N/A | 29.0 ppb (41) | 18.0 ppb (14) | 1.1 ppb (12) | N/A | 32.0 μg/m3 (93) | 93.0 | |
| Dec. 16, 2018, 3 p.m. | N/A | N/A | N/A | 25.0 ppb (23) | N/A | 31.0 ppb (44) | 9.0 ppb (7) | 1.0 ppb (11) | N/A | 31.0 μg/m3 (90) | 90.0 | |
| Dec. 16, 2018, 2 p.m. | N/A | N/A | N/A | 29.0 ppb (27) | N/A | 25.0 ppb (36) | 3.0 ppb (2) | 0.9 ppb (10) | N/A | 35.0 μg/m3 (99) | 99.0 | |
| Dec. 16, 2018, 1 p.m. | N/A | N/A | N/A | 31.0 ppb (29) | N/A | 11.0 ppb (16) | 1.0 ppb (1) | 0.8 ppb (9) | N/A | 30.0 μg/m3 (88) | 88.0 | |
| Dec. 16, 2018, noon | N/A | N/A | N/A | 28.0 ppb (26) | N/A | 12.0 ppb (17) | 4.0 ppb (3) | 0.7 ppb (8) | N/A | 30.0 μg/m3 (88) | 88.0 | |
| Dec. 16, 2018, 11 a.m. | N/A | N/A | N/A | 28.0 ppb (26) | N/A | 20.0 ppb (29) | 5.0 ppb (4) | 0.7 ppb (8) | N/A | 36.0 μg/m3 (101) | 101.0 | |
| Dec. 16, 2018, 10 a.m. | N/A | N/A | N/A | 34.0 ppb (31) | N/A | 30.0 ppb (43) | 2.0 ppb (2) | 0.8 ppb (9) | N/A | 46.0 μg/m3 (126) | 126.0 | |
| Dec. 16, 2018, 9 a.m. | N/A | N/A | N/A | 37.0 ppb (34) | N/A | 16.0 ppb (23) | 2.0 ppb (2) | 0.9 ppb (10) | N/A | 47.0 μg/m3 (129) | 129.0 | |
| Dec. 16, 2018, 8 a.m. | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 4.0 ppb (6) | 1.0 ppb (1) | 1.3 ppb (14) | N/A | 41.0 μg/m3 (114) | 114.0 | |
| Dec. 16, 2018, 7 a.m. | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 3.0 ppb (4) | 1.0 ppb (1) | 1.9 ppb (21) | N/A | N/A | 41.0 | |
| Dec. 16, 2018, 6 a.m. | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 4.0 ppb (6) | 2.0 ppb (2) | 2.5 ppb (28) | N/A | 33.0 μg/m3 (95) | 95.0 | |
| Dec. 16, 2018, 5 a.m. | N/A | N/A | N/A | 52.0 ppb (48) | N/A | 5.0 ppb (7) | 2.0 ppb (2) | 2.5 ppb (28) | N/A | 40.0 μg/m3 (111) | 111.0 | |
| Dec. 16, 2018, 4 a.m. | N/A | N/A | N/A | 57.0 ppb (53) | N/A | 8.0 ppb (11) | 2.0 ppb (2) | 1.8 ppb (20) | N/A | 57.0 μg/m3 (151) | 151.0 | |
| Dec. 16, 2018, 3 a.m. | N/A | N/A | N/A | 64.0 ppb (61) | N/A | 24.0 ppb (34) | 4.0 ppb (3) | 1.7 ppb (19) | N/A | 59.0 μg/m3 (152) | 152.0 | |
| Dec. 16, 2018, 2 a.m. | N/A | N/A | N/A | 76.0 ppb (73) | N/A | 15.0 ppb (21) | 11.0 ppb (8) | 1.9 ppb (21) | N/A | 45.0 μg/m3 (124) | 124.0 | |
| Dec. 16, 2018, 1 a.m. | N/A | N/A | N/A | 70.0 ppb (67) | N/A | 4.0 ppb (6) | 24.0 ppb (18) | 1.7 ppb (19) | N/A | 49.0 μg/m3 (134) | 134.0 | |
| Dec. 16, 2018, midnight | N/A | N/A | N/A | 38.0 ppb (35) | N/A | 4.0 ppb (6) | 60.0 ppb (46) | 1.1 ppb (12) | N/A | 68.0 μg/m3 (157) | 157.0 | |
| Dec. 15, 2018, 11 p.m. | N/A | N/A | N/A | 29.0 ppb (27) | N/A | 6.0 ppb (9) | 90.0 ppb (71) | 0.9 ppb (10) | N/A | 75.0 μg/m3 (160) | 160.0 | |
| Dec. 15, 2018, 10 p.m. | N/A | N/A | N/A | 32.0 ppb (30) | N/A | 7.0 ppb (10) | 85.0 ppb (67) | 1.0 ppb (11) | N/A | 70.0 μg/m3 (158) | 158.0 | |
| Dec. 15, 2018, 9 p.m. | N/A | N/A | N/A | 29.0 ppb (27) | N/A | 7.0 ppb (10) | 68.0 ppb (52) | 0.9 ppb (10) | N/A | 65.0 μg/m3 (155) | 155.0 | |
| Dec. 15, 2018, 8 p.m. | N/A | N/A | N/A | 26.0 ppb (24) | N/A | 8.0 ppb (11) | 50.0 ppb (38) | 0.8 ppb (9) | N/A | 81.0 μg/m3 (163) | 163.0 | |
| Dec. 15, 2018, 7 p.m. | N/A | N/A | N/A | 25.0 ppb (23) | N/A | 10.0 ppb (14) | 36.0 ppb (28) | 0.8 ppb (9) | N/A | 83.0 μg/m3 (164) | 164.0 | |
| Dec. 15, 2018, 6 p.m. | N/A | N/A | N/A | 24.0 ppb (22) | N/A | 14.0 ppb (20) | 25.0 ppb (19) | 0.7 ppb (8) | N/A | 83.0 μg/m3 (164) | 164.0 | |
| Dec. 15, 2018, 5 p.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 8.0 ppb (11) | 13.0 ppb (10) | 0.7 ppb (8) | N/A | 74.0 μg/m3 (160) | 160.0 | |
| Dec. 15, 2018, 4 p.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 7.0 ppb (10) | 7.0 ppb (5) | 0.7 ppb (8) | N/A | 62.0 μg/m3 (153) | 153.0 | |
| Dec. 15, 2018, 3 p.m. | N/A | N/A | N/A | 22.0 ppb (20) | N/A | 12.0 ppb (17) | 5.0 ppb (4) | 0.7 ppb (8) | N/A | 49.0 μg/m3 (134) | 134.0 | |
| Dec. 15, 2018, 2 p.m. | N/A | N/A | N/A | 23.0 ppb (21) | N/A | 6.0 ppb (9) | 3.0 ppb (2) | 0.5 ppb (6) | N/A | 30.0 μg/m3 (88) | 88.0 | |
| Dec. 15, 2018, 1 p.m. | N/A | N/A | N/A | 23.0 ppb (21) | N/A | 22.0 ppb (31) | 3.0 ppb (2) | 0.5 ppb (6) | N/A | 31.0 μg/m3 (90) | 90.0 | |
| Dec. 15, 2018, noon | N/A | N/A | N/A | 25.0 ppb (23) | N/A | 50.0 ppb (57) | 5.0 ppb (4) | 0.7 ppb (8) | N/A | 27.0 μg/m3 (82) | 82.0 | |
| Dec. 15, 2018, 11 a.m. | N/A | N/A | N/A | 24.0 ppb (22) | N/A | 50.0 ppb (57) | 7.0 ppb (5) | 0.6 ppb (7) | N/A | 24.0 μg/m3 (76) | 76.0 | |
| Dec. 15, 2018, 10 a.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 29.0 ppb (41) | 12.0 ppb (9) | 0.5 ppb (6) | N/A | 24.0 μg/m3 (76) | 76.0 | |
| Dec. 15, 2018, 9 a.m. | N/A | N/A | N/A | 26.0 ppb (24) | N/A | 26.0 ppb (37) | 8.0 ppb (6) | 0.5 ppb (6) | N/A | 35.0 μg/m3 (99) | 99.0 | |
| Dec. 15, 2018, 8 a.m. | N/A | N/A | N/A | 36.0 ppb (33) | N/A | 2.0 ppb (3) | N/A | 0.7 ppb (8) | N/A | 36.0 μg/m3 (101) | 101.0 | |
| Dec. 15, 2018, 7 a.m. | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 2.0 ppb (3) | N/A | 1.1 ppb (12) | N/A | N/A | 38.0 | |
| Dec. 15, 2018, 6 a.m. | N/A | N/A | N/A | 40.0 ppb (37) | N/A | 1.0 ppb (1) | N/A | 1.2 ppb (13) | N/A | 17.0 μg/m3 (61) | 61.0 | |
| Dec. 15, 2018, 5 a.m. | N/A | N/A | N/A | 38.0 ppb (35) | N/A | 1.0 ppb (1) | N/A | 0.9 ppb (10) | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Dec. 15, 2018, 4 a.m. | N/A | N/A | N/A | 31.0 ppb (29) | N/A | 1.0 ppb (1) | 16.0 ppb (12) | 0.8 ppb (9) | N/A | 17.0 μg/m3 (61) | 61.0 | |
| Dec. 15, 2018, 3 a.m. | N/A | N/A | N/A | 32.0 ppb (30) | N/A | 1.0 ppb (1) | 16.0 ppb (12) | 0.8 ppb (9) | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Dec. 15, 2018, 2 a.m. | N/A | N/A | N/A | 31.0 ppb (29) | N/A | 1.0 ppb (1) | 20.0 ppb (15) | 0.9 ppb (10) | N/A | 19.0 μg/m3 (65) | 65.0 | |
| Dec. 15, 2018, 1 a.m. | N/A | N/A | N/A | 28.0 ppb (26) | N/A | 1.0 ppb (1) | 26.0 ppb (20) | 0.7 ppb (8) | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Dec. 15, 2018, midnight | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 1.0 ppb (1) | 35.0 ppb (27) | 0.5 ppb (6) | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Dec. 14, 2018, 11 p.m. | N/A | N/A | N/A | 15.0 ppb (14) | N/A | 1.0 ppb (1) | 42.0 ppb (32) | 0.5 ppb (6) | N/A | 13.0 μg/m3 (52) | 52.0 | |
| Dec. 14, 2018, 10 p.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 1.0 ppb (1) | 50.0 ppb (38) | 0.5 ppb (6) | N/A | 7.0 μg/m3 (29) | 38.0 | |
| Dec. 14, 2018, 9 p.m. | N/A | N/A | N/A | 10.0 ppb (9) | N/A | 2.0 ppb (3) | 53.0 ppb (41) | 0.4 ppb (4) | N/A | 9.0 μg/m3 (38) | 41.0 | |
| Dec. 14, 2018, 8 p.m. | N/A | N/A | N/A | 8.0 ppb (7) | N/A | 2.0 ppb (3) | 54.0 ppb (42) | 0.4 ppb (4) | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Dec. 14, 2018, 7 p.m. | N/A | N/A | N/A | 12.0 ppb (11) | N/A | 5.0 ppb (7) | 53.0 ppb (41) | 0.5 ppb (6) | N/A | 32.0 μg/m3 (93) | 93.0 | |
| Dec. 14, 2018, 6 p.m. | N/A | N/A | N/A | 30.0 ppb (28) | N/A | 14.0 ppb (20) | 39.0 ppb (30) | 0.9 ppb (10) | N/A | 50.0 μg/m3 (136) | 136.0 | |
| Dec. 14, 2018, 5 p.m. | N/A | N/A | N/A | 58.0 ppb (54) | N/A | 8.0 ppb (11) | 22.0 ppb (17) | 1.8 ppb (20) | N/A | 44.0 μg/m3 (121) | 121.0 | |
| Dec. 14, 2018, 4 p.m. | N/A | N/A | N/A | 60.0 ppb (56) | N/A | 5.0 ppb (7) | 7.0 ppb (5) | 2.5 ppb (28) | N/A | 48.0 μg/m3 (131) | 131.0 | |
| Dec. 14, 2018, 3 p.m. | N/A | N/A | N/A | 37.0 ppb (34) | N/A | 5.0 ppb (7) | 3.0 ppb (2) | 3.2 ppb (36) | N/A | 38.0 μg/m3 (106) | 106.0 | |
| Dec. 14, 2018, 2 p.m. | N/A | N/A | N/A | 28.0 ppb (26) | N/A | 4.0 ppb (6) | 1.0 ppb (1) | 2.7 ppb (30) | N/A | 32.0 μg/m3 (93) | 93.0 | |
| Dec. 14, 2018, 1 p.m. | N/A | N/A | N/A | 26.0 ppb (24) | N/A | 3.0 ppb (4) | 1.0 ppb (1) | 1.8 ppb (20) | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Dec. 14, 2018, noon | N/A | N/A | N/A | 26.0 ppb (24) | N/A | 2.0 ppb (3) | 0.0 ppb (0) | 1.4 ppb (16) | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Dec. 14, 2018, 11 a.m. | N/A | N/A | N/A | 28.0 ppb (26) | N/A | 2.0 ppb (3) | N/A | 0.9 ppb (10) | N/A | 18.0 μg/m3 (63) | 63.0 | |
| Dec. 14, 2018, 10 a.m. | N/A | N/A | N/A | 29.0 ppb (27) | N/A | 1.0 ppb (1) | N/A | 0.6 ppb (7) | N/A | 17.0 μg/m3 (61) | 61.0 | |
| Dec. 14, 2018, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 μg/m3 (80) | 80.0 | |
| Dec. 14, 2018, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 μg/m3 (80) | 80.0 | |
| Dec. 14, 2018, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.7 ppb (8) | N/A | N/A | 8.0 | |
| Dec. 14, 2018, 6 a.m. | N/A | N/A | N/A | 31.0 ppb (29) | N/A | 1.0 ppb (1) | 5.0 ppb (4) | 0.8 ppb (9) | N/A | 21.0 μg/m3 (69) | 69.0 | |
| Dec. 14, 2018, 5 a.m. | N/A | N/A | N/A | 34.0 ppb (31) | N/A | 1.0 ppb (1) | 6.0 ppb (5) | 0.8 ppb (9) | N/A | 20.0 μg/m3 (67) | 67.0 | |
| Dec. 14, 2018, 4 a.m. | N/A | N/A | N/A | 33.0 ppb (31) | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (11) | N/A | 24.0 μg/m3 (76) | 76.0 | |
| Dec. 14, 2018, 3 a.m. | N/A | N/A | N/A | 38.0 ppb (35) | N/A | 1.0 ppb (1) | 4.0 ppb (3) | 1.0 ppb (11) | N/A | 26.0 μg/m3 (80) | 80.0 | |
| Dec. 14, 2018, 2 a.m. | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 1.0 ppb (1) | 8.0 ppb (6) | 1.0 ppb (11) | N/A | 20.0 μg/m3 (67) | 67.0 | |
| Dec. 14, 2018, 1 a.m. | N/A | N/A | N/A | 29.0 ppb (27) | N/A | 1.0 ppb (1) | 22.0 ppb (17) | 0.8 ppb (9) | N/A | 25.0 μg/m3 (78) | 78.0 | |
| Dec. 14, 2018, midnight | N/A | N/A | N/A | 17.0 ppb (16) | N/A | 1.0 ppb (1) | 41.0 ppb (32) | 0.6 ppb (7) | N/A | 23.0 μg/m3 (73) | 73.0 | |
| Dec. 13, 2018, 11 p.m. | N/A | N/A | N/A | 16.0 ppb (15) | N/A | 1.0 ppb (1) | 45.0 ppb (35) | 0.6 ppb (7) | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Dec. 13, 2018, 10 p.m. | N/A | N/A | N/A | 12.0 ppb (11) | N/A | 1.0 ppb (1) | 49.0 ppb (38) | 0.5 ppb (6) | N/A | 7.0 μg/m3 (29) | 38.0 | |
| Dec. 13, 2018, 9 p.m. | N/A | N/A | N/A | 13.0 ppb (12) | N/A | 1.0 ppb (1) | 44.0 ppb (34) | 0.5 ppb (6) | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Dec. 13, 2018, 8 p.m. | N/A | N/A | N/A | 14.0 ppb (13) | N/A | 1.0 ppb (1) | 36.0 ppb (28) | 0.6 ppb (7) | N/A | 7.0 μg/m3 (29) | 29.0 | |
| Dec. 13, 2018, 7 p.m. | N/A | N/A | N/A | 8.0 ppb (7) | N/A | 1.0 ppb (1) | 38.0 ppb (29) | 0.4 ppb (4) | N/A | 7.0 μg/m3 (29) | 29.0 | |
| Dec. 13, 2018, 6 p.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 34.0 ppb (26) | 0.3 ppb (3) | N/A | 5.0 μg/m3 (21) | 26.0 | |
| Dec. 13, 2018, 5 p.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 29.0 ppb (22) | 0.3 ppb (3) | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Dec. 13, 2018, 4 p.m. | N/A | N/A | N/A | 13.0 ppb (12) | N/A | 1.0 ppb (1) | 25.0 ppb (19) | 0.5 ppb (6) | N/A | 10.0 μg/m3 (42) | 42.0 | |
| Dec. 13, 2018, 3 p.m. | N/A | N/A | N/A | 27.0 ppb (25) | N/A | 1.0 ppb (1) | 10.0 ppb (8) | 1.0 ppb (11) | N/A | 17.0 μg/m3 (61) | 61.0 | |
| Dec. 13, 2018, 2 p.m. | N/A | N/A | N/A | 32.0 ppb (30) | N/A | 2.0 ppb (3) | N/A | 1.5 ppb (17) | N/A | 33.0 μg/m3 (95) | 95.0 | |
| Dec. 13, 2018, 1 p.m. | N/A | N/A | N/A | 37.0 ppb (34) | N/A | 3.0 ppb (4) | 0.0 ppb (0) | 1.7 ppb (19) | N/A | 23.0 μg/m3 (73) | 73.0 | |
| Dec. 13, 2018, noon | N/A | N/A | N/A | 35.0 ppb (32) | N/A | 2.0 ppb (3) | N/A | 1.5 ppb (17) | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Dec. 13, 2018, 11 a.m. | N/A | N/A | N/A | 16.0 ppb (15) | N/A | 1.0 ppb (1) | 22.0 ppb (17) | 0.4 ppb (4) | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Dec. 13, 2018, 10 a.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 1.0 ppb (1) | 21.0 ppb (16) | 0.4 ppb (4) | N/A | 17.0 μg/m3 (61) | 61.0 | |
| Dec. 13, 2018, 9 a.m. | N/A | N/A | N/A | 22.0 ppb (20) | N/A | 1.0 ppb (1) | 18.0 ppb (14) | 0.4 ppb (4) | N/A | 24.0 μg/m3 (76) | 76.0 | |
| Dec. 13, 2018, 8 a.m. | N/A | N/A | N/A | 21.0 ppb (19) | N/A | 1.0 ppb (1) | 20.0 ppb (15) | 0.5 ppb (6) | N/A | 31.0 μg/m3 (90) | 90.0 | |
| Dec. 13, 2018, 7 a.m. | N/A | N/A | N/A | 21.0 ppb (19) | N/A | 1.0 ppb (1) | 24.0 ppb (18) | 0.5 ppb (6) | N/A | N/A | 19.0 | |
| Dec. 13, 2018, 6 a.m. | N/A | N/A | N/A | 21.0 ppb (19) | N/A | 1.0 ppb (1) | 27.0 ppb (21) | 0.5 ppb (6) | N/A | 25.0 μg/m3 (78) | 78.0 | |
| Dec. 13, 2018, 5 a.m. | N/A | N/A | N/A | 30.0 ppb (28) | N/A | 1.0 ppb (1) | 23.0 ppb (18) | 0.7 ppb (8) | N/A | 29.0 μg/m3 (86) | 86.0 | |
| Dec. 13, 2018, 4 a.m. | N/A | N/A | N/A | 37.0 ppb (34) | N/A | 2.0 ppb (3) | 22.0 ppb (17) | 0.8 ppb (9) | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Dec. 13, 2018, 3 a.m. | N/A | N/A | N/A | 37.0 ppb (34) | N/A | 2.0 ppb (3) | 26.0 ppb (20) | 0.8 ppb (9) | N/A | 24.0 μg/m3 (76) | 76.0 | |
| Dec. 13, 2018, 2 a.m. | N/A | N/A | N/A | 31.0 ppb (29) | N/A | 2.0 ppb (3) | 32.0 ppb (25) | 0.8 ppb (9) | N/A | 26.0 μg/m3 (80) | 80.0 | |
| Dec. 13, 2018, 1 a.m. | N/A | N/A | N/A | 24.0 ppb (22) | N/A | 2.0 ppb (3) | 44.0 ppb (34) | 0.7 ppb (8) | N/A | 29.0 μg/m3 (86) | 86.0 | |
| Dec. 13, 2018, midnight | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 2.0 ppb (3) | 54.0 ppb (42) | 0.6 ppb (7) | N/A | 36.0 μg/m3 (101) | 101.0 | |
| Dec. 12, 2018, 11 p.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 4.0 ppb (6) | 63.0 ppb (48) | 0.6 ppb (7) | N/A | 38.0 μg/m3 (106) | 106.0 | |
| Dec. 12, 2018, 10 p.m. | N/A | N/A | N/A | 22.0 ppb (20) | N/A | 5.0 ppb (7) | 90.0 ppb (71) | 0.7 ppb (8) | N/A | 34.0 μg/m3 (97) | 97.0 | |
| Dec. 12, 2018, 9 p.m. | N/A | N/A | N/A | 24.0 ppb (22) | N/A | 6.0 ppb (9) | 88.0 ppb (69) | 0.7 ppb (8) | N/A | 36.0 μg/m3 (101) | 101.0 | |
| Dec. 12, 2018, 8 p.m. | N/A | N/A | N/A | 23.0 ppb (21) | N/A | 7.0 ppb (10) | 83.0 ppb (65) | 0.8 ppb (9) | N/A | 30.0 μg/m3 (88) | 88.0 | |
| Dec. 12, 2018, 7 p.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 7.0 ppb (10) | 73.0 ppb (57) | 0.7 ppb (8) | N/A | 40.0 μg/m3 (111) | 111.0 | |
| Dec. 12, 2018, 6 p.m. | N/A | N/A | N/A | 17.0 ppb (16) | N/A | 12.0 ppb (17) | 63.0 ppb (48) | 0.7 ppb (8) | N/A | 53.0 μg/m3 (144) | 144.0 | |
| Dec. 12, 2018, 5 p.m. | N/A | N/A | N/A | 37.0 ppb (34) | N/A | 13.0 ppb (19) | 36.0 ppb (28) | 1.3 ppb (14) | N/A | 51.0 μg/m3 (139) | 139.0 | |
| Dec. 12, 2018, 4 p.m. | N/A | N/A | N/A | 47.0 ppb (44) | N/A | 7.0 ppb (10) | 14.0 ppb (11) | 2.0 ppb (22) | N/A | 59.0 μg/m3 (152) | 152.0 | |
| Dec. 12, 2018, 3 p.m. | N/A | N/A | N/A | 38.0 ppb (35) | N/A | 4.0 ppb (6) | 3.0 ppb (2) | 2.5 ppb (28) | N/A | 50.0 μg/m3 (136) | 136.0 | |
| Dec. 12, 2018, 2 p.m. | N/A | N/A | N/A | 31.0 ppb (29) | N/A | 4.0 ppb (6) | 2.0 ppb (2) | 2.5 ppb (28) | N/A | 52.0 μg/m3 (141) | 141.0 | |
| Dec. 12, 2018, 1 p.m. | N/A | N/A | N/A | 34.0 ppb (31) | N/A | 3.0 ppb (4) | 0.0 ppb (0) | 1.5 ppb (17) | N/A | 52.0 μg/m3 (141) | 141.0 | |
| Dec. 12, 2018, noon | N/A | N/A | N/A | 36.0 ppb (33) | N/A | 3.0 ppb (4) | N/A | 1.5 ppb (17) | N/A | 43.0 μg/m3 (119) | 119.0 | |
| Dec. 12, 2018, 11 a.m. | N/A | N/A | N/A | 37.0 ppb (34) | N/A | 3.0 ppb (4) | N/A | 1.0 ppb (11) | N/A | 46.0 μg/m3 (126) | 126.0 | |
| Dec. 12, 2018, 10 a.m. | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 3.0 ppb (4) | N/A | 1.0 ppb (11) | N/A | 61.0 μg/m3 (153) | 153.0 | |
| Dec. 12, 2018, 9 a.m. | N/A | N/A | N/A | 41.0 ppb (38) | N/A | 4.0 ppb (6) | 3.0 ppb (2) | 0.9 ppb (10) | N/A | 142.0 μg/m3 (196) | 196.0 | |
| Dec. 12, 2018, 8 a.m. | N/A | N/A | N/A | 46.0 ppb (43) | N/A | 4.0 ppb (6) | N/A | 1.6 ppb (18) | N/A | 62.0 μg/m3 (153) | 153.0 | |
| Dec. 12, 2018, 7 a.m. | N/A | N/A | N/A | 49.0 ppb (45) | N/A | 3.0 ppb (4) | 1.0 ppb (1) | 1.9 ppb (21) | N/A | N/A | 45.0 | |
| Dec. 12, 2018, 6 a.m. | N/A | N/A | N/A | 51.0 ppb (47) | N/A | 4.0 ppb (6) | 1.0 ppb (1) | 2.0 ppb (22) | N/A | 22.0 μg/m3 (71) | 71.0 | |
| Dec. 12, 2018, 5 a.m. | N/A | N/A | N/A | 49.0 ppb (45) | N/A | 4.0 ppb (6) | 1.0 ppb (1) | 1.3 ppb (14) | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Dec. 12, 2018, 4 a.m. | N/A | N/A | N/A | 44.0 ppb (41) | N/A | 3.0 ppb (4) | 8.0 ppb (6) | 1.2 ppb (13) | N/A | 17.0 μg/m3 (61) | 61.0 | |
| Dec. 12, 2018, 3 a.m. | N/A | N/A | N/A | 37.0 ppb (34) | N/A | 2.0 ppb (3) | 20.0 ppb (15) | 1.0 ppb (11) | N/A | 26.0 μg/m3 (80) | 80.0 | |
| Dec. 12, 2018, 2 a.m. | N/A | N/A | N/A | 36.0 ppb (33) | N/A | 2.0 ppb (3) | 29.0 ppb (22) | 0.9 ppb (10) | N/A | 44.0 μg/m3 (121) | 121.0 | |
| Dec. 12, 2018, 1 a.m. | N/A | N/A | N/A | 36.0 ppb (33) | N/A | 3.0 ppb (4) | 39.0 ppb (30) | 1.0 ppb (11) | N/A | 35.0 μg/m3 (99) | 99.0 | |
| Dec. 12, 2018, midnight | N/A | N/A | N/A | 22.0 ppb (20) | N/A | 4.0 ppb (6) | 69.0 ppb (53) | 0.7 ppb (8) | N/A | 38.0 μg/m3 (106) | 106.0 | |
| Dec. 11, 2018, 11 p.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 5.0 ppb (7) | 72.0 ppb (56) | 0.7 ppb (8) | N/A | 26.0 μg/m3 (80) | 80.0 | |
| Dec. 11, 2018, 10 p.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 7.0 ppb (10) | 64.0 ppb (49) | 0.6 ppb (7) | N/A | 53.0 μg/m3 (144) | 144.0 | |
| Dec. 11, 2018, 9 p.m. | N/A | N/A | N/A | 22.0 ppb (20) | N/A | 11.0 ppb (16) | 61.0 ppb (47) | 0.7 ppb (8) | N/A | 71.0 μg/m3 (158) | 158.0 | |
| Dec. 11, 2018, 8 p.m. | N/A | N/A | N/A | 30.0 ppb (28) | N/A | 17.0 ppb (24) | 50.0 ppb (38) | 0.9 ppb (10) | N/A | 80.0 μg/m3 (163) | 163.0 | |
| Dec. 11, 2018, 7 p.m. | N/A | N/A | N/A | 31.0 ppb (29) | N/A | 17.0 ppb (24) | 31.0 ppb (24) | 1.0 ppb (11) | N/A | 84.0 μg/m3 (165) | 165.0 | |
| Dec. 11, 2018, 6 p.m. | N/A | N/A | N/A | 28.0 ppb (26) | N/A | 15.0 ppb (21) | 18.0 ppb (14) | 1.0 ppb (11) | N/A | 94.0 μg/m3 (170) | 170.0 | |
| Dec. 11, 2018, 5 p.m. | N/A | N/A | N/A | 26.0 ppb (24) | N/A | 18.0 ppb (26) | 9.0 ppb (7) | 0.9 ppb (10) | N/A | 91.0 μg/m3 (169) | 169.0 | |
| Dec. 11, 2018, 4 p.m. | N/A | N/A | N/A | 24.0 ppb (22) | N/A | 19.0 ppb (27) | 5.0 ppb (4) | 0.9 ppb (10) | N/A | 82.0 μg/m3 (164) | 164.0 | |
| Dec. 11, 2018, 3 p.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 20.0 ppb (29) | 2.0 ppb (2) | 0.9 ppb (10) | N/A | 72.0 μg/m3 (159) | 159.0 | |
| Dec. 11, 2018, 2 p.m. | N/A | N/A | N/A | 21.0 ppb (19) | N/A | 24.0 ppb (34) | N/A | 0.9 ppb (10) | N/A | 66.0 μg/m3 (156) | 156.0 | |
| Dec. 11, 2018, 1 p.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 22.0 ppb (31) | 0.0 ppb (0) | 0.7 ppb (8) | N/A | 64.0 μg/m3 (154) | 154.0 | |
| Dec. 11, 2018, noon | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 22.0 ppb (31) | N/A | 0.5 ppb (6) | N/A | 67.0 μg/m3 (156) | 156.0 | |
| Dec. 11, 2018, 11 a.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 19.0 ppb (27) | N/A | 0.4 ppb (4) | N/A | 29.0 μg/m3 (86) | 86.0 | |
| Dec. 11, 2018, 10 a.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 20.0 ppb (29) | N/A | 0.4 ppb (4) | N/A | 20.0 μg/m3 (67) | 67.0 | |
| Dec. 11, 2018, 9 a.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 8.0 ppb (11) | N/A | 0.4 ppb (4) | N/A | 32.0 μg/m3 (93) | 93.0 | |
| Dec. 11, 2018, 8 a.m. | N/A | N/A | N/A | 21.0 ppb (19) | N/A | 35.0 ppb (50) | N/A | 0.5 ppb (6) | N/A | 23.0 μg/m3 (73) | 73.0 | |
| Dec. 11, 2018, 7 a.m. | N/A | N/A | N/A | 24.0 ppb (22) | N/A | 74.0 ppb (68) | 1.0 ppb (1) | 0.5 ppb (6) | N/A | N/A | 68.0 | |
| Dec. 11, 2018, 6 a.m. | N/A | N/A | N/A | 23.0 ppb (21) | N/A | 14.0 ppb (20) | 2.0 ppb (2) | 0.5 ppb (6) | N/A | 15.0 μg/m3 (56) | 56.0 | |
| Dec. 11, 2018, 5 a.m. | N/A | N/A | N/A | 27.0 ppb (25) | N/A | 19.0 ppb (27) | 3.0 ppb (2) | 0.6 ppb (7) | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Dec. 11, 2018, 4 a.m. | N/A | N/A | N/A | 29.0 ppb (27) | N/A | 6.0 ppb (9) | 4.0 ppb (3) | 0.7 ppb (8) | N/A | 14.0 μg/m3 (54) | 54.0 | |
| Dec. 11, 2018, 3 a.m. | N/A | N/A | N/A | 31.0 ppb (29) | N/A | 5.0 ppb (7) | 6.0 ppb (5) | 0.8 ppb (9) | N/A | 16.0 μg/m3 (59) | 59.0 | |
| Dec. 11, 2018, 2 a.m. | N/A | N/A | N/A | 29.0 ppb (27) | N/A | 6.0 ppb (9) | 10.0 ppb (8) | 0.8 ppb (9) | N/A | 39.0 μg/m3 (109) | 109.0 | |
| Dec. 11, 2018, 1 a.m. | N/A | N/A | N/A | 38.0 ppb (35) | N/A | 8.0 ppb (11) | 14.0 ppb (11) | 0.9 ppb (10) | N/A | 47.0 μg/m3 (129) | 129.0 | |
| Dec. 11, 2018, midnight | N/A | N/A | N/A | 38.0 ppb (35) | N/A | 22.0 ppb (31) | 38.0 ppb (29) | 1.0 ppb (11) | N/A | 43.0 μg/m3 (119) | 119.0 | |
| Dec. 10, 2018, 11 p.m. | N/A | N/A | N/A | 21.0 ppb (19) | N/A | 10.0 ppb (14) | 66.0 ppb (51) | 0.7 ppb (8) | N/A | 37.0 μg/m3 (104) | 104.0 | |
| Dec. 10, 2018, 10 p.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 10.0 ppb (14) | 67.0 ppb (52) | 0.6 ppb (7) | N/A | 38.0 μg/m3 (106) | 106.0 | |
| Dec. 10, 2018, 9 p.m. | N/A | N/A | N/A | 16.0 ppb (15) | N/A | 11.0 ppb (16) | 58.0 ppb (45) | 0.6 ppb (7) | N/A | 34.0 μg/m3 (97) | 97.0 | |
| Dec. 10, 2018, 8 p.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 7.0 ppb (10) | 55.0 ppb (42) | 0.4 ppb (4) | N/A | 38.0 μg/m3 (106) | 106.0 | |
| Dec. 10, 2018, 7 p.m. | N/A | N/A | N/A | 12.0 ppb (11) | N/A | 12.0 ppb (17) | 46.0 ppb (35) | 0.5 ppb (6) | N/A | 54.0 μg/m3 (146) | 146.0 | |
| Dec. 10, 2018, 6 p.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 21.0 ppb (30) | 28.0 ppb (22) | 0.6 ppb (7) | N/A | 50.0 μg/m3 (136) | 136.0 | |
| Dec. 10, 2018, 5 p.m. | N/A | N/A | N/A | 24.0 ppb (22) | N/A | 30.0 ppb (43) | 15.0 ppb (12) | 0.9 ppb (10) | N/A | 53.0 μg/m3 (144) | 144.0 | |
| Dec. 10, 2018, 4 p.m. | N/A | N/A | N/A | 23.0 ppb (21) | N/A | 52.0 ppb (58) | 8.0 ppb (6) | 1.1 ppb (12) | N/A | 57.0 μg/m3 (151) | 151.0 |