AQSQID: 800150251

Site Name: Chalco

Location: Chalco de Díaz Covarrubias, MX

Reporting: False, Located: True

Current AQI: None

Chalco de Díaz Covarrubias MX, MX: 19.2669, -98.886

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 35.0 ppb (32) N/A 2.0 ppb (3) 4.0 ppb (3) 2.1 ppb (23) 118.0 μg/m3 (82) N/A 82.0
 
Dec. 17, 2018, 2 p.m. N/A N/A N/A 30.0 ppb (28) N/A 2.0 ppb (3) 2.0 ppb (2) 2.3 ppb (26) 103.0 μg/m3 (74) N/A 74.0
 
Dec. 17, 2018, 1 p.m. N/A N/A N/A 30.0 ppb (28) N/A 1.0 ppb (1) 2.0 ppb (2) 1.6 ppb (18) 60.0 μg/m3 (52) N/A 52.0
 
Dec. 17, 2018, noon N/A N/A N/A 30.0 ppb (28) N/A 0.0 ppb (0) 2.0 ppb (2) 0.9 ppb (10) 50.0 μg/m3 (45) N/A 45.0
 
Dec. 17, 2018, 11 a.m. N/A N/A N/A 31.0 ppb (29) N/A N/A 4.0 ppb (3) 0.9 ppb (10) 64.0 μg/m3 (54) N/A 54.0
 
Dec. 17, 2018, 10 a.m. N/A N/A N/A 40.0 ppb (37) N/A 0.0 ppb (0) 2.0 ppb (2) 1.1 ppb (12) 65.0 μg/m3 (55) N/A 55.0
 
Dec. 17, 2018, 9 a.m. N/A N/A N/A 44.0 ppb (41) N/A 0.0 ppb (0) 2.0 ppb (2) 1.3 ppb (14) 64.0 μg/m3 (54) N/A 54.0
 
Dec. 17, 2018, 8 a.m. N/A N/A N/A 43.0 ppb (40) N/A 0.0 ppb (0) 3.0 ppb (2) 1.2 ppb (13) 61.0 μg/m3 (53) N/A 53.0
 
Dec. 17, 2018, 7 a.m. N/A N/A N/A 38.0 ppb (35) N/A 0.0 ppb (0) 7.0 ppb (5) 1.2 ppb (13) 99.0 μg/m3 (72) N/A 72.0
 
Dec. 17, 2018, 6 a.m. N/A N/A N/A 51.0 ppb (47) N/A 0.0 ppb (0) 3.0 ppb (2) 1.4 ppb (16) 65.0 μg/m3 (55) N/A 55.0
 
Dec. 17, 2018, 5 a.m. N/A N/A N/A 55.0 ppb (51) N/A 0.0 ppb (0) 6.0 ppb (5) 1.4 ppb (16) 66.0 μg/m3 (56) N/A 56.0
 
Dec. 17, 2018, 4 a.m. N/A N/A N/A 54.0 ppb (50) N/A 1.0 ppb (1) 19.0 ppb (15) 1.3 ppb (14) 66.0 μg/m3 (56) N/A 56.0
 
Dec. 17, 2018, 3 a.m. N/A N/A N/A 59.0 ppb (55) N/A 1.0 ppb (1) 17.0 ppb (13) 1.2 ppb (13) 58.0 μg/m3 (52) N/A 55.0
 
Dec. 17, 2018, 2 a.m. N/A N/A N/A 46.0 ppb (43) N/A 1.0 ppb (1) 34.0 ppb (26) 1.0 ppb (11) 53.0 μg/m3 (48) N/A 48.0
 
Dec. 17, 2018, 1 a.m. N/A N/A N/A 26.0 ppb (24) N/A 1.0 ppb (1) 56.0 ppb (43) 0.8 ppb (9) 61.0 μg/m3 (53) N/A 53.0
 
Dec. 17, 2018, midnight N/A N/A N/A 19.0 ppb (18) N/A 2.0 ppb (3) 68.0 ppb (52) 0.8 ppb (9) 138.0 μg/m3 (92) N/A 92.0
 
Dec. 16, 2018, 11 p.m. N/A N/A N/A 22.0 ppb (20) N/A 7.0 ppb (10) 97.0 ppb (77) 0.9 ppb (10) 100.0 μg/m3 (72) N/A 77.0
 
Dec. 16, 2018, 10 p.m. N/A N/A N/A 24.0 ppb (22) N/A 9.0 ppb (13) 112.0 ppb (89) 0.9 ppb (10) 78.0 μg/m3 (62) N/A 89.0
 
Dec. 16, 2018, 9 p.m. N/A N/A N/A 21.0 ppb (19) N/A 10.0 ppb (14) 102.0 ppb (81) 0.8 ppb (9) 67.0 μg/m3 (56) N/A 81.0
 
Dec. 16, 2018, 8 p.m. N/A N/A N/A 21.0 ppb (19) N/A 11.0 ppb (16) 87.0 ppb (68) 0.8 ppb (9) 76.0 μg/m3 (60) N/A 68.0
 
Dec. 16, 2018, 7 p.m. N/A N/A N/A 26.0 ppb (24) N/A 12.0 ppb (17) 68.0 ppb (52) 0.9 ppb (10) 64.0 μg/m3 (54) N/A 54.0
 
Dec. 16, 2018, 6 p.m. N/A N/A N/A 23.0 ppb (21) N/A 16.0 ppb (23) 51.0 ppb (39) 0.8 ppb (9) 81.0 μg/m3 (63) N/A 63.0
 
Dec. 16, 2018, 5 p.m. N/A N/A N/A 31.0 ppb (29) N/A 19.0 ppb (27) 30.0 ppb (23) 1.1 ppb (12) 75.0 μg/m3 (60) N/A 60.0
 
Dec. 16, 2018, 4 p.m. N/A N/A N/A 28.0 ppb (26) N/A 6.0 ppb (9) 15.0 ppb (12) 1.0 ppb (11) 112.0 μg/m3 (78) N/A 78.0
 
Dec. 16, 2018, 3 p.m. N/A N/A N/A 28.0 ppb (26) N/A 1.0 ppb (1) 4.0 ppb (3) 2.0 ppb (22) 122.0 μg/m3 (84) N/A 84.0
 
Dec. 16, 2018, 2 p.m. N/A N/A N/A 24.0 ppb (22) N/A 1.0 ppb (1) 3.0 ppb (2) 1.9 ppb (21) 145.0 μg/m3 (95) N/A 95.0
 
Dec. 16, 2018, 1 p.m. N/A N/A N/A 23.0 ppb (21) N/A 0.0 ppb (0) 2.0 ppb (2) 1.2 ppb (13) 60.0 μg/m3 (52) N/A 52.0
 
Dec. 16, 2018, noon N/A N/A N/A 23.0 ppb (21) N/A 0.0 ppb (0) 2.0 ppb (2) 1.2 ppb (13) 62.0 μg/m3 (54) N/A 54.0
 
Dec. 16, 2018, 11 a.m. N/A N/A N/A 25.0 ppb (23) N/A N/A 2.0 ppb (2) 1.4 ppb (16) 51.0 μg/m3 (46) N/A 46.0
 
Dec. 16, 2018, 10 a.m. N/A N/A N/A 26.0 ppb (24) N/A 0.0 ppb (0) 2.0 ppb (2) 1.2 ppb (13) 68.0 μg/m3 (56) N/A 56.0
 
Dec. 16, 2018, 9 a.m. N/A N/A N/A 30.0 ppb (28) N/A 0.0 ppb (0) 2.0 ppb (2) 1.4 ppb (16) 48.0 μg/m3 (44) N/A 44.0
 
Dec. 16, 2018, 8 a.m. N/A N/A N/A 30.0 ppb (28) N/A N/A 2.0 ppb (2) 1.3 ppb (14) 111.0 μg/m3 (78) N/A 78.0
 
Dec. 16, 2018, 7 a.m. N/A N/A N/A 37.0 ppb (34) N/A 1.0 ppb (1) 2.0 ppb (2) 1.7 ppb (19) 110.0 μg/m3 (78) N/A 78.0
 
Dec. 16, 2018, 6 a.m. N/A N/A N/A 36.0 ppb (33) N/A 1.0 ppb (1) 2.0 ppb (2) 1.5 ppb (17) 73.0 μg/m3 (59) N/A 59.0
 
Dec. 16, 2018, 5 a.m. N/A N/A N/A 41.0 ppb (38) N/A 0.0 ppb (0) 2.0 ppb (2) 1.3 ppb (14) 61.0 μg/m3 (53) N/A 53.0
 
Dec. 16, 2018, 4 a.m. N/A N/A N/A 37.0 ppb (34) N/A 0.0 ppb (0) 8.0 ppb (6) 1.1 ppb (12) 160.0 μg/m3 (102) N/A 102.0
 
Dec. 16, 2018, 3 a.m. N/A N/A N/A 53.0 ppb (49) N/A 1.0 ppb (1) 2.0 ppb (2) 1.8 ppb (20) 89.0 μg/m3 (67) N/A 67.0
 
Dec. 16, 2018, 2 a.m. N/A N/A N/A 55.0 ppb (51) N/A 0.0 ppb (0) 9.0 ppb (7) 1.2 ppb (13) 69.0 μg/m3 (57) N/A 57.0
 
Dec. 16, 2018, 1 a.m. N/A N/A N/A 36.0 ppb (33) N/A 0.0 ppb (0) 33.0 ppb (25) 0.9 ppb (10) 64.0 μg/m3 (54) N/A 54.0
 
Dec. 16, 2018, midnight N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) 54.0 ppb (42) 0.7 ppb (8) 79.0 μg/m3 (62) N/A 62.0
 
Dec. 15, 2018, 11 p.m. N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) 53.0 ppb (41) 0.8 ppb (9) 47.0 μg/m3 (43) N/A 43.0
 
Dec. 15, 2018, 10 p.m. N/A N/A N/A 19.0 ppb (18) N/A 2.0 ppb (3) 65.0 ppb (50) 0.7 ppb (8) 118.0 μg/m3 (82) N/A 82.0
 
Dec. 15, 2018, 9 p.m. N/A N/A N/A 30.0 ppb (28) N/A 4.0 ppb (6) 77.0 ppb (60) 1.0 ppb (11) 128.0 μg/m3 (86) N/A 86.0
 
Dec. 15, 2018, 8 p.m. N/A N/A N/A 33.0 ppb (31) N/A 5.0 ppb (7) 60.0 ppb (46) 1.0 ppb (11) 109.0 μg/m3 (77) N/A 77.0
 
Dec. 15, 2018, 7 p.m. N/A N/A N/A 32.0 ppb (30) N/A 5.0 ppb (7) 47.0 ppb (36) 1.0 ppb (11) 95.0 μg/m3 (70) N/A 70.0
 
Dec. 15, 2018, 6 p.m. N/A N/A N/A 29.0 ppb (27) N/A 6.0 ppb (9) 32.0 ppb (25) 0.9 ppb (10) 95.0 μg/m3 (70) N/A 70.0
 
Dec. 15, 2018, 5 p.m. N/A N/A N/A 30.0 ppb (28) N/A 5.0 ppb (7) 17.0 ppb (13) 1.0 ppb (11) 110.0 μg/m3 (78) N/A 78.0
 
Dec. 15, 2018, 4 p.m. N/A N/A N/A 30.0 ppb (28) N/A 3.0 ppb (4) 8.0 ppb (6) 1.2 ppb (13) 121.0 μg/m3 (83) N/A 83.0
 
Dec. 15, 2018, 3 p.m. N/A N/A N/A 24.0 ppb (22) N/A 1.0 ppb (1) 4.0 ppb (3) 1.5 ppb (17) 116.0 μg/m3 (80) N/A 80.0
 
Dec. 15, 2018, 2 p.m. N/A N/A N/A 23.0 ppb (21) N/A 1.0 ppb (1) 2.0 ppb (2) 1.7 ppb (19) 123.0 μg/m3 (84) N/A 84.0
 
Dec. 15, 2018, 1 p.m. N/A N/A N/A 24.0 ppb (22) N/A 1.0 ppb (1) 2.0 ppb (2) 1.3 ppb (14) 59.0 μg/m3 (52) N/A 52.0
 
Dec. 15, 2018, noon N/A N/A N/A 29.0 ppb (27) N/A 1.0 ppb (1) 2.0 ppb (2) 1.0 ppb (11) 70.0 μg/m3 (58) N/A 58.0
 
Dec. 15, 2018, 11 a.m. N/A N/A N/A 27.0 ppb (25) N/A 2.0 ppb (3) 2.0 ppb (2) 1.1 ppb (12) 61.0 μg/m3 (53) N/A 53.0
 
Dec. 15, 2018, 10 a.m. N/A N/A N/A 27.0 ppb (25) N/A 3.0 ppb (4) 2.0 ppb (2) 1.1 ppb (12) 51.0 μg/m3 (46) N/A 46.0
 
Dec. 15, 2018, 9 a.m. N/A N/A N/A 28.0 ppb (26) N/A 2.0 ppb (3) 1.0 ppb (1) 1.0 ppb (11) 59.0 μg/m3 (52) N/A 52.0
 
Dec. 15, 2018, 8 a.m. N/A N/A N/A 30.0 ppb (28) N/A 1.0 ppb (1) 2.0 ppb (2) 1.1 ppb (12) 62.0 μg/m3 (54) N/A 54.0
 
Dec. 15, 2018, 7 a.m. N/A N/A N/A 32.0 ppb (30) N/A 1.0 ppb (1) 2.0 ppb (2) 1.2 ppb (13) 78.0 μg/m3 (62) N/A 62.0
 
Dec. 15, 2018, 6 a.m. N/A N/A N/A 33.0 ppb (31) N/A 1.0 ppb (1) 2.0 ppb (2) 1.6 ppb (18) 144.0 μg/m3 (94) N/A 94.0
 
Dec. 15, 2018, 5 a.m. N/A N/A N/A 35.0 ppb (32) N/A 2.0 ppb (3) 2.0 ppb (2) 1.6 ppb (18) 48.0 μg/m3 (44) N/A 44.0
 
Dec. 15, 2018, 4 a.m. N/A N/A N/A 27.0 ppb (25) N/A 0.0 ppb (0) 9.0 ppb (7) 0.9 ppb (10) 61.0 μg/m3 (53) N/A 53.0
 
Dec. 15, 2018, 3 a.m. N/A N/A N/A 34.0 ppb (31) N/A 0.0 ppb (0) 6.0 ppb (5) 0.9 ppb (10) 42.0 μg/m3 (38) N/A 38.0
 
Dec. 15, 2018, 2 a.m. N/A N/A N/A 30.0 ppb (28) N/A 0.0 ppb (0) 13.0 ppb (10) 0.8 ppb (9) 56.0 μg/m3 (50) N/A 50.0
 
Dec. 15, 2018, 1 a.m. N/A N/A N/A 16.0 ppb (15) N/A 0.0 ppb (0) 30.0 ppb (23) 0.7 ppb (8) 65.0 μg/m3 (55) N/A 55.0
 
Dec. 15, 2018, midnight N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 36.0 ppb (28) 0.7 ppb (8) 84.0 μg/m3 (64) N/A 64.0
 
Dec. 14, 2018, 11 p.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 38.0 ppb (29) 0.6 ppb (7) 81.0 μg/m3 (63) N/A 63.0
 
Dec. 14, 2018, 10 p.m. N/A N/A N/A 10.0 ppb (9) N/A 0.0 ppb (0) 44.0 ppb (34) 0.7 ppb (8) 104.0 μg/m3 (74) N/A 74.0
 
Dec. 14, 2018, 9 p.m. N/A N/A N/A 10.0 ppb (9) N/A 0.0 ppb (0) 46.0 ppb (35) 0.7 ppb (8) 137.0 μg/m3 (91) N/A 91.0
 
Dec. 14, 2018, 8 p.m. N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) 46.0 ppb (35) 0.9 ppb (10) 121.0 μg/m3 (83) N/A 83.0
 
Dec. 14, 2018, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 62.0 μg/m3 (54) N/A 54.0
 
Dec. 14, 2018, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 67.0 μg/m3 (56) N/A 56.0
 
Dec. 14, 2018, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 77.0 μg/m3 (61) N/A 61.0
 
Dec. 14, 2018, 4 p.m. N/A N/A N/A 33.0 ppb (31) N/A 3.0 ppb (4) 10.0 ppb (8) 1.4 ppb (16) 96.0 μg/m3 (70) N/A 70.0
 
Dec. 14, 2018, 3 p.m. N/A N/A N/A 28.0 ppb (26) N/A 3.0 ppb (4) 3.0 ppb (2) 2.1 ppb (23) 132.0 μg/m3 (88) N/A 88.0
 
Dec. 14, 2018, 2 p.m. N/A N/A N/A 26.0 ppb (24) N/A 2.0 ppb (3) 2.0 ppb (2) 3.0 ppb (33) 104.0 μg/m3 (74) N/A 74.0
 
Dec. 14, 2018, 1 p.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (1) 2.0 ppb (2) 1.8 ppb (20) 72.0 μg/m3 (58) N/A 58.0
 
Dec. 14, 2018, noon N/A N/A N/A 20.0 ppb (19) N/A 1.0 ppb (1) 2.0 ppb (2) 1.3 ppb (14) 44.0 μg/m3 (40) N/A 40.0
 
Dec. 14, 2018, 11 a.m. N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) 2.0 ppb (2) 0.8 ppb (9) 23.0 μg/m3 (21) N/A 21.0
 
Dec. 14, 2018, 10 a.m. N/A N/A N/A 22.0 ppb (20) N/A 1.0 ppb (1) 2.0 ppb (2) 0.7 ppb (8) 34.0 μg/m3 (31) N/A 31.0
 
Dec. 14, 2018, 9 a.m. N/A N/A N/A 21.0 ppb (19) N/A N/A 2.0 ppb (2) 0.7 ppb (8) 34.0 μg/m3 (31) N/A 31.0
 
Dec. 14, 2018, 8 a.m. N/A N/A N/A 21.0 ppb (19) N/A N/A 4.0 ppb (3) 0.8 ppb (9) 53.0 μg/m3 (48) N/A 48.0
 
Dec. 14, 2018, 7 a.m. N/A N/A N/A 28.0 ppb (26) N/A 0.0 ppb (0) 2.0 ppb (2) 0.8 ppb (9) 44.0 μg/m3 (40) N/A 40.0
 
Dec. 14, 2018, 6 a.m. N/A N/A N/A 25.0 ppb (23) N/A 4.0 ppb (6) 6.0 ppb (5) 0.8 ppb (9) 39.0 μg/m3 (35) N/A 35.0
 
Dec. 14, 2018, 5 a.m. N/A N/A N/A 26.0 ppb (24) N/A 0.0 ppb (0) 8.0 ppb (6) 0.7 ppb (8) 29.0 μg/m3 (26) N/A 26.0
 
Dec. 14, 2018, 4 a.m. N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 16.0 ppb (12) 0.6 ppb (7) 45.0 μg/m3 (41) N/A 41.0
 
Dec. 14, 2018, 3 a.m. N/A N/A N/A 20.0 ppb (19) N/A 0.0 ppb (0) 21.0 ppb (16) 0.6 ppb (7) 37.0 μg/m3 (34) N/A 34.0
 
Dec. 14, 2018, 2 a.m. N/A N/A N/A 20.0 ppb (19) N/A 0.0 ppb (0) 26.0 ppb (20) 0.6 ppb (7) 41.0 μg/m3 (37) N/A 37.0
 
Dec. 14, 2018, 1 a.m. N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 30.0 ppb (23) 0.6 ppb (7) 49.0 μg/m3 (45) N/A 45.0
 
Dec. 14, 2018, midnight N/A N/A N/A 13.0 ppb (12) N/A 0.0 ppb (0) 39.0 ppb (30) 0.5 ppb (6) 65.0 μg/m3 (55) N/A 55.0
 
Dec. 13, 2018, 11 p.m. N/A N/A N/A 12.0 ppb (11) N/A 0.0 ppb (0) 44.0 ppb (34) 0.5 ppb (6) 80.0 μg/m3 (62) N/A 62.0
 
Dec. 13, 2018, 10 p.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 45.0 ppb (35) 0.5 ppb (6) 82.0 μg/m3 (64) N/A 64.0
 
Dec. 13, 2018, 9 p.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 45.0 ppb (35) 0.5 ppb (6) 111.0 μg/m3 (78) N/A 78.0
 
Dec. 13, 2018, 8 p.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 41.0 ppb (32) 0.6 ppb (7) 82.0 μg/m3 (64) N/A 64.0
 
Dec. 13, 2018, 7 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (28) 0.4 ppb (4) 71.0 μg/m3 (58) N/A 58.0
 
Dec. 13, 2018, 6 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) 0.5 ppb (6) 58.0 μg/m3 (52) N/A 52.0
 
Dec. 13, 2018, 5 p.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) 0.6 ppb (7) 106.0 μg/m3 (76) N/A 76.0
 
Dec. 13, 2018, 4 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 28.0 ppb (22) 0.6 ppb (7) 83.0 μg/m3 (64) N/A 64.0
 
Dec. 13, 2018, 3 p.m. N/A N/A N/A 23.0 ppb (21) N/A 1.0 ppb (1) 10.0 ppb (8) 1.5 ppb (17) 70.0 μg/m3 (58) N/A 58.0
 
Dec. 13, 2018, 2 p.m. N/A N/A N/A 24.0 ppb (22) N/A 1.0 ppb (1) 6.0 ppb (5) 1.4 ppb (16) 71.0 μg/m3 (58) N/A 58.0
 
Dec. 13, 2018, 1 p.m. N/A N/A N/A 25.0 ppb (23) N/A 1.0 ppb (1) 2.0 ppb (2) 1.3 ppb (14) 27.0 μg/m3 (25) N/A 25.0
 
Dec. 13, 2018, noon N/A N/A N/A 26.0 ppb (24) N/A 0.0 ppb (0) 3.0 ppb (2) 0.7 ppb (8) 22.0 μg/m3 (20) N/A 24.0
 
Dec. 13, 2018, 11 a.m. N/A N/A N/A 23.0 ppb (21) N/A 0.0 ppb (0) 5.0 ppb (4) 0.6 ppb (7) 4.0 μg/m3 (4) N/A 21.0
 
Dec. 13, 2018, 10 a.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 21.0 ppb (16) 0.5 ppb (6) 17.0 μg/m3 (15) N/A 16.0
 
Dec. 13, 2018, 9 a.m. N/A N/A N/A 17.0 ppb (16) N/A 0.0 ppb (0) 21.0 ppb (16) 0.5 ppb (6) 12.0 μg/m3 (11) N/A 16.0
 
Dec. 13, 2018, 8 a.m. N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 23.0 ppb (18) 0.5 ppb (6) 8.0 μg/m3 (7) N/A 18.0
 
Dec. 13, 2018, 7 a.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 27.0 ppb (21) 0.5 ppb (6) 18.0 μg/m3 (16) N/A 21.0
 
Dec. 13, 2018, 6 a.m. N/A N/A N/A 15.0 ppb (14) N/A 0.0 ppb (0) 27.0 ppb (21) 0.5 ppb (6) 35.0 μg/m3 (32) N/A 32.0
 
Dec. 13, 2018, 5 a.m. N/A N/A N/A 26.0 ppb (24) N/A 0.0 ppb (0) 17.0 ppb (13) 0.7 ppb (8) 45.0 μg/m3 (41) N/A 41.0
 
Dec. 13, 2018, 4 a.m. N/A N/A N/A 23.0 ppb (21) N/A 0.0 ppb (0) 24.0 ppb (18) 0.8 ppb (9) 51.0 μg/m3 (46) N/A 46.0
 
Dec. 13, 2018, 3 a.m. N/A N/A N/A 34.0 ppb (31) N/A 0.0 ppb (0) 20.0 ppb (15) 0.8 ppb (9) 61.0 μg/m3 (53) N/A 53.0
 
Dec. 13, 2018, 2 a.m. N/A N/A N/A 23.0 ppb (21) N/A 0.0 ppb (0) 37.0 ppb (28) 0.7 ppb (8) 49.0 μg/m3 (45) N/A 45.0
 
Dec. 13, 2018, 1 a.m. N/A N/A N/A 21.0 ppb (19) N/A 0.0 ppb (0) 38.0 ppb (29) 0.7 ppb (8) 63.0 μg/m3 (54) N/A 54.0
 
Dec. 13, 2018, midnight N/A N/A N/A 13.0 ppb (12) N/A 1.0 ppb (1) 53.0 ppb (41) 0.6 ppb (7) 111.0 μg/m3 (78) N/A 78.0
 
Dec. 12, 2018, 11 p.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) 62.0 ppb (48) 0.6 ppb (7) 106.0 μg/m3 (76) N/A 76.0
 
Dec. 12, 2018, 10 p.m. N/A N/A N/A 10.0 ppb (9) N/A 2.0 ppb (3) 58.0 ppb (45) 0.6 ppb (7) 78.0 μg/m3 (62) N/A 62.0
 
Dec. 12, 2018, 9 p.m. N/A N/A N/A 12.0 ppb (11) N/A 2.0 ppb (3) 56.0 ppb (43) 0.7 ppb (8) 61.0 μg/m3 (53) N/A 53.0
 
Dec. 12, 2018, 8 p.m. N/A N/A N/A 9.0 ppb (8) N/A 2.0 ppb (3) 65.0 ppb (50) 0.5 ppb (6) 50.0 μg/m3 (45) N/A 50.0
 
Dec. 12, 2018, 7 p.m. N/A N/A N/A 9.0 ppb (8) N/A 2.0 ppb (3) 63.0 ppb (48) 0.5 ppb (6) 46.0 μg/m3 (42) N/A 48.0
 
Dec. 12, 2018, 6 p.m. N/A N/A N/A 11.0 ppb (10) N/A 3.0 ppb (4) 58.0 ppb (45) 0.6 ppb (7) 96.0 μg/m3 (70) N/A 70.0
 
Dec. 12, 2018, 5 p.m. N/A N/A N/A 29.0 ppb (27) N/A 7.0 ppb (10) 34.0 ppb (26) 1.0 ppb (11) 97.0 μg/m3 (71) N/A 71.0
 
Dec. 12, 2018, 4 p.m. N/A N/A N/A 34.0 ppb (31) N/A 3.0 ppb (4) 12.0 ppb (9) 1.5 ppb (17) 119.0 μg/m3 (82) N/A 82.0
 
Dec. 12, 2018, 3 p.m. N/A N/A N/A 35.0 ppb (32) N/A 2.0 ppb (3) 3.0 ppb (2) 2.4 ppb (27) 127.0 μg/m3 (86) N/A 86.0
 
Dec. 12, 2018, 2 p.m. N/A N/A N/A 28.0 ppb (26) N/A 2.0 ppb (3) 2.0 ppb (2) 2.3 ppb (26) 100.0 μg/m3 (72) N/A 72.0
 
Dec. 12, 2018, 1 p.m. N/A N/A N/A 29.0 ppb (27) N/A 1.0 ppb (1) 2.0 ppb (2) 2.0 ppb (22) 64.0 μg/m3 (54) N/A 54.0
 
Dec. 12, 2018, noon N/A N/A N/A 27.0 ppb (25) N/A 1.0 ppb (1) 2.0 ppb (2) 1.1 ppb (12) 55.0 μg/m3 (50) N/A 50.0
 
Dec. 12, 2018, 11 a.m. N/A N/A N/A 24.0 ppb (22) N/A 1.0 ppb (1) 2.0 ppb (2) 0.9 ppb (10) 52.0 μg/m3 (47) N/A 47.0
 
Dec. 12, 2018, 10 a.m. N/A N/A N/A 26.0 ppb (24) N/A 0.0 ppb (0) 2.0 ppb (2) 0.8 ppb (9) 45.0 μg/m3 (41) N/A 41.0
 
Dec. 12, 2018, 9 a.m. N/A N/A N/A 27.0 ppb (25) N/A 0.0 ppb (0) 2.0 ppb (2) 0.9 ppb (10) 50.0 μg/m3 (45) N/A 45.0
 
Dec. 12, 2018, 8 a.m. N/A N/A N/A 31.0 ppb (29) N/A 0.0 ppb (0) 2.0 ppb (2) 0.8 ppb (9) 57.0 μg/m3 (51) N/A 51.0
 
Dec. 12, 2018, 7 a.m. N/A N/A N/A 34.0 ppb (31) N/A 0.0 ppb (0) 2.0 ppb (2) 1.0 ppb (11) 57.0 μg/m3 (51) N/A 51.0
 
Dec. 12, 2018, 6 a.m. N/A N/A N/A 35.0 ppb (32) N/A 0.0 ppb (0) 2.0 ppb (2) 1.2 ppb (13) 65.0 μg/m3 (55) N/A 55.0
 
Dec. 12, 2018, 5 a.m. N/A N/A N/A 39.0 ppb (36) N/A 0.0 ppb (0) 2.0 ppb (2) 1.2 ppb (13) 75.0 μg/m3 (60) N/A 60.0
 
Dec. 12, 2018, 4 a.m. N/A N/A N/A 40.0 ppb (37) N/A 0.0 ppb (0) 4.0 ppb (3) 1.2 ppb (13) 72.0 μg/m3 (58) N/A 58.0
 
Dec. 12, 2018, 3 a.m. N/A N/A N/A 41.0 ppb (38) N/A 1.0 ppb (1) 11.0 ppb (8) 1.1 ppb (12) 48.0 μg/m3 (44) N/A 44.0
 
Dec. 12, 2018, 2 a.m. N/A N/A N/A 44.0 ppb (41) N/A 0.0 ppb (0) 15.0 ppb (12) 1.0 ppb (11) 65.0 μg/m3 (55) N/A 55.0
 
Dec. 12, 2018, 1 a.m. N/A N/A N/A 27.0 ppb (25) N/A 0.0 ppb (0) 35.0 ppb (27) 0.9 ppb (10) 87.0 μg/m3 (66) N/A 66.0
 
Dec. 12, 2018, midnight N/A N/A N/A 21.0 ppb (19) N/A 1.0 ppb (1) 49.0 ppb (38) 1.0 ppb (11) 92.0 μg/m3 (68) N/A 68.0
 
Dec. 11, 2018, 11 p.m. N/A N/A N/A 22.0 ppb (20) N/A 1.0 ppb (1) 54.0 ppb (42) 1.2 ppb (13) 105.0 μg/m3 (75) N/A 75.0
 
Dec. 11, 2018, 10 p.m. N/A N/A N/A 26.0 ppb (24) N/A 5.0 ppb (7) 78.0 ppb (61) 1.1 ppb (12) 115.0 μg/m3 (80) N/A 80.0
 
Dec. 11, 2018, 9 p.m. N/A N/A N/A 33.0 ppb (31) N/A 6.0 ppb (9) 68.0 ppb (52) 1.2 ppb (13) 113.0 μg/m3 (79) N/A 79.0
 
Dec. 11, 2018, 8 p.m. N/A N/A N/A 32.0 ppb (30) N/A 6.0 ppb (9) 58.0 ppb (45) 1.1 ppb (12) 125.0 μg/m3 (85) N/A 85.0
 
Dec. 11, 2018, 7 p.m. N/A N/A N/A 34.0 ppb (31) N/A 7.0 ppb (10) 42.0 ppb (32) 1.1 ppb (12) 129.0 μg/m3 (87) N/A 87.0
 
Dec. 11, 2018, 6 p.m. N/A N/A N/A 31.0 ppb (29) N/A 7.0 ppb (10) 25.0 ppb (19) 1.1 ppb (12) 127.0 μg/m3 (86) N/A 86.0
 
Dec. 11, 2018, 5 p.m. N/A N/A N/A 28.0 ppb (26) N/A 5.0 ppb (7) 13.0 ppb (10) 1.1 ppb (12) 109.0 μg/m3 (77) N/A 77.0
 
Dec. 11, 2018, 4 p.m. N/A N/A N/A 22.0 ppb (20) N/A 2.0 ppb (3) 7.0 ppb (5) 1.0 ppb (11) 120.0 μg/m3 (82) N/A 82.0
 
Dec. 11, 2018, 3 p.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (1) 3.0 ppb (2) 1.3 ppb (14) 85.0 μg/m3 (65) N/A 65.0
 
Dec. 11, 2018, 2 p.m. N/A N/A N/A 17.0 ppb (16) N/A 0.0 ppb (0) 2.0 ppb (2) 1.3 ppb (14) 63.0 μg/m3 (54) N/A 54.0
 
Dec. 11, 2018, 1 p.m. N/A N/A N/A 17.0 ppb (16) N/A 1.0 ppb (1) 2.0 ppb (2) 1.0 ppb (11) 55.0 μg/m3 (50) N/A 50.0
 
Dec. 11, 2018, noon N/A N/A N/A 20.0 ppb (19) N/A 1.0 ppb (1) 2.0 ppb (2) 0.8 ppb (9) 51.0 μg/m3 (46) N/A 46.0
 
Dec. 11, 2018, 11 a.m. N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) 2.0 ppb (2) 0.8 ppb (9) 33.0 μg/m3 (30) N/A 30.0
 
Dec. 11, 2018, 10 a.m. N/A N/A N/A 22.0 ppb (20) N/A 0.0 ppb (0) 2.0 ppb (2) 0.6 ppb (7) 26.0 μg/m3 (24) N/A 24.0
 
Dec. 11, 2018, 9 a.m. N/A N/A N/A 21.0 ppb (19) N/A 0.0 ppb (0) 3.0 ppb (2) 0.5 ppb (6) 39.0 μg/m3 (35) N/A 35.0
 
Dec. 11, 2018, 8 a.m. N/A N/A N/A 23.0 ppb (21) N/A 0.0 ppb (0) 2.0 ppb (2) 0.6 ppb (7) 41.0 μg/m3 (37) N/A 37.0
 
Dec. 11, 2018, 7 a.m. N/A N/A N/A 25.0 ppb (23) N/A 0.0 ppb (0) 2.0 ppb (2) 0.7 ppb (8) 42.0 μg/m3 (38) N/A 38.0
 
Dec. 11, 2018, 6 a.m. N/A N/A N/A 26.0 ppb (24) N/A 0.0 ppb (0) 3.0 ppb (2) 0.7 ppb (8) 63.0 μg/m3 (54) N/A 54.0
 
Dec. 11, 2018, 5 a.m. N/A N/A N/A 30.0 ppb (28) N/A 1.0 ppb (1) 1.0 ppb (1) 0.9 ppb (10) 67.0 μg/m3 (56) N/A 56.0
 
Dec. 11, 2018, 4 a.m. N/A N/A N/A 34.0 ppb (31) N/A 0.0 ppb (0) 2.0 ppb (2) 0.9 ppb (10) 80.0 μg/m3 (62) N/A 62.0
 
Dec. 11, 2018, 3 a.m. N/A N/A N/A 38.0 ppb (35) N/A 1.0 ppb (1) 3.0 ppb (2) 1.1 ppb (12) 80.0 μg/m3 (62) N/A 62.0
 
Dec. 11, 2018, 2 a.m. N/A N/A N/A 42.0 ppb (39) N/A 1.0 ppb (1) 12.0 ppb (9) 1.1 ppb (12) 56.0 μg/m3 (50) N/A 50.0
 
Dec. 11, 2018, 1 a.m. N/A N/A N/A 32.0 ppb (30) N/A 0.0 ppb (0) 27.0 ppb (21) 0.9 ppb (10) 79.0 μg/m3 (62) N/A 62.0
 
Dec. 11, 2018, midnight N/A N/A N/A 20.0 ppb (19) N/A 2.0 ppb (3) 49.0 ppb (38) 0.9 ppb (10) 102.0 μg/m3 (74) N/A 74.0
 
Dec. 10, 2018, 11 p.m. N/A N/A N/A 25.0 ppb (23) N/A 3.0 ppb (4) 56.0 ppb (43) 1.1 ppb (12) 101.0 μg/m3 (73) N/A 73.0
 
Dec. 10, 2018, 10 p.m. N/A N/A N/A 26.0 ppb (24) N/A 9.0 ppb (13) 79.0 ppb (62) 1.3 ppb (14) 78.0 μg/m3 (62) N/A 62.0
 
Dec. 10, 2018, 9 p.m. N/A N/A N/A 22.0 ppb (20) N/A 7.0 ppb (10) 72.0 ppb (56) 0.9 ppb (10) 94.0 μg/m3 (70) N/A 70.0
 
Dec. 10, 2018, 8 p.m. N/A N/A N/A 24.0 ppb (22) N/A 6.0 ppb (9) 52.0 ppb (40) 0.8 ppb (9) 96.0 μg/m3 (70) N/A 70.0
 
Dec. 10, 2018, 7 p.m. N/A N/A N/A 28.0 ppb (26) N/A 7.0 ppb (10) 31.0 ppb (24) 1.0 ppb (11) 84.0 μg/m3 (64) N/A 64.0
 
Dec. 10, 2018, 6 p.m. N/A N/A N/A 31.0 ppb (29) N/A 11.0 ppb (16) 21.0 ppb (16) 1.0 ppb (11) 108.0 μg/m3 (76) N/A 76.0
 
Dec. 10, 2018, 5 p.m. N/A N/A N/A 34.0 ppb (31) N/A 9.0 ppb (13) 11.0 ppb (8) 1.3 ppb (14) 96.0 μg/m3 (70) N/A 70.0
 
Dec. 10, 2018, 4 p.m. N/A N/A N/A 30.0 ppb (28) N/A 3.0 ppb (4) 4.0 ppb (3) 1.8 ppb (20) 105.0 μg/m3 (75) N/A 75.0