ID: 2555

AQSQID: 80011G013

Site Name: Estaci¢N Dif

Added: April 21, 2020, 6:24 p.m.

Updated: Jan. 19, 2021, 8:31 p.m.

Location: Salamanca (Irapuato), MX

Reporting: True, Located: True

Current AQI: 73.0

Salamanca (Irapuato) MX, MX: 20.558153, -101.20485

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 12, 2021, 7 p.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 29.0 ppb (27) N/A 14.0 μg/m3 (13) 20.0 μg/m3 (68) 68.0
 
Jan. 12, 2021, 6 p.m. N/A N/A N/A N/A N/A 22.0 ppb (32) 22.0 ppb (21) N/A 34.1 μg/m3 (32) 39.5 μg/m3 (111) 111.0
 
Jan. 12, 2021, 5 p.m. N/A N/A N/A N/A N/A 30.0 ppb (43) 18.0 ppb (17) 0.33 ppb (4) 65.6 μg/m3 (57) 45.3 μg/m3 (126) 126.0
 
Jan. 12, 2021, 4 p.m. N/A N/A N/A N/A N/A 32.0 ppb (46) 7.0 ppb (7) 0.78 ppb (10) 116.9 μg/m3 (82) 57.2 μg/m3 (152) 152.0
 
Jan. 12, 2021, 3 p.m. N/A N/A N/A N/A N/A 33.0 ppb (48) 7.0 ppb (7) 0.91 ppb (11) 127.2 μg/m3 (87) 67.8 μg/m3 (158) 158.0
 
Jan. 12, 2021, 2 p.m. N/A N/A N/A N/A N/A 19.0 ppb (28) 10.0 ppb (10) 0.93 ppb (11) 103.2 μg/m3 (75) 28.5 μg/m3 (86) 86.0
 
Jan. 12, 2021, 1 p.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 4.0 ppb (4) 0.55 ppb (7) 36.7 μg/m3 (34) 14.0 μg/m3 (55) 55.0
 
Jan. 12, 2021, noon N/A N/A N/A N/A N/A 18.0 ppb (26) 1.0 ppb (1) N/A 37.8 μg/m3 (35) 12.0 μg/m3 (50) 50.0
 
Jan. 12, 2021, 11 a.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 2.0 ppb (2) N/A 36.7 μg/m3 (34) 9.5 μg/m3 (40) 40.0
 
Jan. 12, 2021, 10 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 2.0 ppb (2) N/A 33.2 μg/m3 (31) 9.6 μg/m3 (40) 40.0
 
Jan. 12, 2021, 9 a.m. N/A N/A N/A N/A N/A 19.0 ppb (28) 2.0 ppb (2) N/A 39.9 μg/m3 (37) 26.3 μg/m3 (81) 81.0
 
Jan. 12, 2021, 8 a.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 7.0 ppb (7) N/A 32.5 μg/m3 (31) 13.7 μg/m3 (55) 55.0
 
Jan. 12, 2021, 7 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 8.0 ppb (8) N/A 13.4 μg/m3 (13) 13.5 μg/m3 (54) 54.0
 
Jan. 12, 2021, 6 a.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 14.0 ppb (13) N/A 20.3 μg/m3 (19) 11.8 μg/m3 (50) 50.0
 
Jan. 12, 2021, 5 a.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 14.0 ppb (13) N/A 24.1 μg/m3 (23) 8.6 μg/m3 (36) 36.0
 
Jan. 12, 2021, 4 a.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 14.0 ppb (13) N/A 34.9 μg/m3 (33) 4.2 μg/m3 (18) 33.0
 
Jan. 12, 2021, 3 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 17.0 ppb (16) N/A 48.4 μg/m3 (45) 0.7 μg/m3 (3) 45.0
 
Jan. 12, 2021, 2 a.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 14.0 ppb (13) 0.2 ppb (3) 50.2 μg/m3 (47) 17.7 μg/m3 (63) 63.0
 
Jan. 12, 2021, 1 a.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 20.0 ppb (19) 0.55 ppb (7) 53.8 μg/m3 (50) 9.5 μg/m3 (40) 50.0
 
Jan. 12, 2021, midnight N/A N/A N/A N/A N/A 15.0 ppb (22) 27.0 ppb (25) N/A 35.7 μg/m3 (34) 7.3 μg/m3 (31) 34.0
 
Jan. 11, 2021, 11 p.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 35.0 ppb (33) N/A 17.7 μg/m3 (17) 7.4 μg/m3 (31) 33.0
 
Jan. 11, 2021, 10 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 34.0 ppb (32) N/A 7.4 μg/m3 (7) 19.3 μg/m3 (67) 67.0
 
Jan. 11, 2021, 9 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 36.0 ppb (34) N/A 21.6 μg/m3 (20) N/A 34.0
 
Jan. 11, 2021, 8 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 33.0 ppb (31) N/A 2.9 μg/m3 (3) N/A 31.0
 
Jan. 11, 2021, 7 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 29.0 ppb (27) N/A 3.3 μg/m3 (4) N/A 27.0
 
Jan. 11, 2021, 6 p.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 23.0 ppb (22) 0.29 ppb (4) 37.6 μg/m3 (35) N/A 35.0
 
Jan. 11, 2021, 5 p.m. N/A N/A N/A N/A N/A 23.0 ppb (33) 17.0 ppb (16) 0.49 ppb (6) 64.8 μg/m3 (56) N/A 56.0
 
Jan. 11, 2021, 4 p.m. N/A N/A N/A N/A N/A 33.0 ppb (48) 9.0 ppb (9) N/A 74.8 μg/m3 (61) N/A 61.0
 
Jan. 11, 2021, 3 p.m. N/A N/A N/A N/A N/A 27.0 ppb (39) 3.0 ppb (3) N/A 84.2 μg/m3 (66) N/A 66.0
 
Jan. 11, 2021, 2 p.m. N/A N/A N/A N/A N/A 28.0 ppb (40) 2.0 ppb (2) N/A 60.3 μg/m3 (54) N/A 54.0
 
Jan. 11, 2021, 1 p.m. N/A N/A N/A N/A N/A 22.0 ppb (32) 2.0 ppb (2) N/A 43.1 μg/m3 (40) N/A 40.0
 
Jan. 11, 2021, noon N/A N/A N/A N/A N/A 19.0 ppb (28) 2.0 ppb (2) N/A 51.1 μg/m3 (48) N/A 48.0
 
Jan. 11, 2021, 11 a.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 2.0 ppb (2) N/A 45.9 μg/m3 (43) N/A 43.0
 
Jan. 11, 2021, 10 a.m. N/A N/A N/A N/A N/A 19.0 ppb (28) 2.0 ppb (2) N/A 42.1 μg/m3 (39) N/A 39.0
 
Jan. 11, 2021, 9 a.m. N/A N/A N/A N/A N/A 19.0 ppb (28) 2.0 ppb (2) N/A 44.1 μg/m3 (41) N/A 41.0
 
Jan. 11, 2021, 8 a.m. N/A N/A N/A N/A N/A 19.0 ppb (28) 2.0 ppb (2) N/A 62.2 μg/m3 (55) N/A 55.0
 
Jan. 11, 2021, 7 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 3.0 ppb (3) N/A 58.2 μg/m3 (53) N/A 53.0
 
Jan. 11, 2021, 6 a.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 3.0 ppb (3) N/A 46.8 μg/m3 (44) N/A 44.0
 
Jan. 11, 2021, 5 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 7.0 ppb (7) N/A 61.3 μg/m3 (55) N/A 55.0
 
Jan. 11, 2021, 4 a.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 5.0 ppb (5) N/A 58.0 μg/m3 (53) N/A 53.0
 
Jan. 11, 2021, 3 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 6.0 ppb (6) N/A 44.5 μg/m3 (42) N/A 42.0
 
Jan. 11, 2021, 2 a.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 13.0 ppb (13) N/A 82.4 μg/m3 (65) N/A 65.0
 
Jan. 11, 2021, 1 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 24.0 ppb (23) N/A 42.4 μg/m3 (40) N/A 40.0
 
Jan. 11, 2021, midnight N/A N/A N/A N/A N/A 16.0 ppb (23) 32.0 ppb (30) N/A 14.5 μg/m3 (14) N/A 30.0
 
Jan. 10, 2021, 11 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 34.0 ppb (32) N/A 26.5 μg/m3 (25) N/A 32.0
 
Jan. 10, 2021, 10 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 33.0 ppb (31) N/A 12.0 μg/m3 (12) N/A 31.0
 
Jan. 10, 2021, 9 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 32.0 ppb (30) N/A 9.6 μg/m3 (9) N/A 30.0
 
Jan. 10, 2021, 8 p.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 29.0 ppb (27) N/A 8.4 μg/m3 (8) N/A 27.0
 
Jan. 10, 2021, 7 p.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 26.0 ppb (25) N/A 7.9 μg/m3 (8) N/A 25.0
 
Jan. 10, 2021, 6 p.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 25.0 ppb (24) N/A 8.8 μg/m3 (9) N/A 25.0
 
Jan. 10, 2021, 5 p.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 20.0 ppb (19) N/A 29.0 μg/m3 (27) N/A 27.0
 
Jan. 10, 2021, 4 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 15.0 ppb (14) N/A 46.1 μg/m3 (43) N/A 43.0
 
Jan. 10, 2021, 3 p.m. N/A N/A N/A N/A N/A 26.0 ppb (38) 6.0 ppb (6) N/A 67.0 μg/m3 (57) N/A 57.0
 
Jan. 10, 2021, 2 p.m. N/A N/A N/A N/A N/A 21.0 ppb (30) 2.0 ppb (2) N/A 44.5 μg/m3 (42) N/A 42.0
 
Jan. 10, 2021, 1 p.m. N/A N/A N/A N/A N/A 19.0 ppb (28) 4.0 ppb (4) N/A 22.3 μg/m3 (21) N/A 28.0
 
Jan. 10, 2021, noon N/A N/A N/A N/A N/A 15.0 ppb (22) 6.0 ppb (6) N/A 21.7 μg/m3 (21) N/A 22.0
 
Jan. 10, 2021, 11 a.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 4.0 ppb (4) N/A 21.6 μg/m3 (20) N/A 25.0
 
Jan. 10, 2021, 10 a.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 5.0 ppb (5) N/A 25.9 μg/m3 (24) N/A 25.0
 
Jan. 10, 2021, 9 a.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 3.0 ppb (3) N/A 23.0 μg/m3 (22) N/A 22.0
 
Jan. 10, 2021, 8 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 8.0 ppb (8) N/A 20.1 μg/m3 (19) N/A 23.0
 
Jan. 10, 2021, 7 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 4.0 ppb (4) N/A 23.8 μg/m3 (23) N/A 23.0
 
Jan. 10, 2021, 6 a.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 10.0 ppb (10) N/A 23.0 μg/m3 (22) N/A 25.0
 
Jan. 10, 2021, 5 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 4.0 ppb (4) N/A 27.6 μg/m3 (26) N/A 26.0
 
Jan. 10, 2021, 4 a.m. N/A N/A N/A N/A N/A 19.0 ppb (28) 2.0 ppb (2) N/A 36.8 μg/m3 (35) 17.4 μg/m3 (63) 63.0
 
Jan. 10, 2021, 3 a.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 4.0 ppb (4) N/A 27.0 μg/m3 (25) 17.3 μg/m3 (62) 62.0
 
Jan. 10, 2021, 2 a.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 9.0 ppb (9) N/A 36.6 μg/m3 (34) 17.3 μg/m3 (62) 62.0
 
Jan. 10, 2021, 1 a.m. N/A N/A N/A N/A N/A 22.0 ppb (32) 7.0 ppb (7) N/A 28.1 μg/m3 (27) 17.4 μg/m3 (63) 63.0
 
Jan. 10, 2021, midnight N/A N/A N/A N/A N/A 16.0 ppb (23) 18.0 ppb (17) N/A 89.3 μg/m3 (68) 17.4 μg/m3 (63) 68.0
 
Jan. 9, 2021, 11 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 23.0 ppb (22) N/A 47.6 μg/m3 (45) 17.3 μg/m3 (62) 62.0
 
Jan. 9, 2021, 10 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 27.0 ppb (25) N/A 38.9 μg/m3 (37) 17.3 μg/m3 (62) 62.0
 
Jan. 9, 2021, 9 p.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 30.0 ppb (28) N/A 16.3 μg/m3 (16) 17.4 μg/m3 (63) 63.0
 
Jan. 9, 2021, 8 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 32.0 ppb (30) N/A 22.3 μg/m3 (21) 17.3 μg/m3 (62) 62.0
 
Jan. 9, 2021, 7 p.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 33.0 ppb (31) N/A 32.0 μg/m3 (30) 17.3 μg/m3 (62) 62.0
 
Jan. 9, 2021, 6 p.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 30.0 ppb (28) N/A 57.0 μg/m3 (52) 17.4 μg/m3 (63) 63.0
 
Jan. 9, 2021, 5 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 24.0 ppb (23) N/A 66.8 μg/m3 (57) 17.4 μg/m3 (63) 63.0
 
Jan. 9, 2021, 4 p.m. N/A N/A N/A N/A N/A 23.0 ppb (33) 14.0 ppb (13) N/A 98.4 μg/m3 (73) 17.3 μg/m3 (62) 73.0
 
Jan. 9, 2021, 3 p.m. N/A N/A N/A N/A N/A 32.0 ppb (46) 6.0 ppb (6) N/A 118.2 μg/m3 (83) 17.4 μg/m3 (63) 83.0
 
Jan. 9, 2021, 2 p.m. N/A N/A N/A N/A N/A 32.0 ppb (46) 4.0 ppb (4) N/A 82.6 μg/m3 (65) 17.3 μg/m3 (62) 65.0
 
Jan. 9, 2021, 1 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 7.0 ppb (7) N/A 66.0 μg/m3 (57) 17.3 μg/m3 (62) 62.0
 
Jan. 9, 2021, noon N/A N/A N/A N/A N/A 14.0 ppb (20) 10.0 ppb (10) N/A 66.1 μg/m3 (57) 17.4 μg/m3 (63) 63.0
 
Jan. 9, 2021, 11 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 15.0 ppb (14) N/A 55.5 μg/m3 (52) 17.4 μg/m3 (63) 63.0
 
Jan. 9, 2021, 10 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 17.0 ppb (16) N/A 44.1 μg/m3 (41) 17.4 μg/m3 (63) 63.0
 
Jan. 9, 2021, 9 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 18.0 ppb (17) N/A 53.7 μg/m3 (50) 33.7 μg/m3 (97) 97.0
 
Jan. 9, 2021, 8 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 12.0 ppb (12) N/A 69.7 μg/m3 (59) 33.9 μg/m3 (97) 97.0
 
Jan. 9, 2021, 7 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 10.0 ppb (10) N/A 81.0 μg/m3 (64) 32.5 μg/m3 (94) 94.0
 
Jan. 9, 2021, 6 a.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 15.0 ppb (14) N/A 58.7 μg/m3 (53) 25.8 μg/m3 (80) 80.0
 
Jan. 9, 2021, 5 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 17.0 ppb (16) N/A 98.3 μg/m3 (73) 41.3 μg/m3 (116) 116.0
 
Jan. 9, 2021, 4 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 7.0 ppb (7) N/A 124.5 μg/m3 (86) 42.2 μg/m3 (118) 118.0
 
Jan. 9, 2021, 3 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 4.0 ppb (4) N/A 159.7 μg/m3 (104) 36.5 μg/m3 (104) 104.0
 
Jan. 9, 2021, 2 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 5.0 ppb (5) N/A 114.9 μg/m3 (81) 24.5 μg/m3 (78) 81.0
 
Jan. 9, 2021, 1 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 29.0 ppb (27) N/A 54.1 μg/m3 (51) 20.3 μg/m3 (69) 69.0
 
Jan. 9, 2021, midnight N/A N/A N/A N/A N/A 13.0 ppb (19) 43.0 ppb (40) N/A 34.7 μg/m3 (33) 12.3 μg/m3 (52) 52.0
 
Jan. 8, 2021, 11 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 43.0 ppb (40) N/A 34.3 μg/m3 (32) 21.2 μg/m3 (71) 71.0
 
Jan. 8, 2021, 10 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 45.0 ppb (42) N/A 22.2 μg/m3 (21) 23.0 μg/m3 (74) 74.0
 
Jan. 8, 2021, 9 p.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 44.0 ppb (41) N/A 16.8 μg/m3 (16) 23.5 μg/m3 (75) 75.0
 
Jan. 8, 2021, 8 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 35.0 ppb (33) N/A 30.2 μg/m3 (28) 34.6 μg/m3 (99) 99.0
 
Jan. 8, 2021, 7 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 34.0 ppb (32) N/A 70.2 μg/m3 (59) 60.0 μg/m3 (154) 154.0
 
Jan. 8, 2021, 6 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 24.0 ppb (23) N/A 100.1 μg/m3 (74) 63.3 μg/m3 (156) 156.0
 
Jan. 8, 2021, 5 p.m. N/A N/A N/A N/A N/A 29.0 ppb (42) 10.0 ppb (10) N/A 120.1 μg/m3 (84) 69.5 μg/m3 (159) 159.0
 
Jan. 8, 2021, 4 p.m. N/A N/A N/A N/A N/A 27.0 ppb (39) 4.0 ppb (4) N/A 156.3 μg/m3 (102) 73.1 μg/m3 (161) 161.0
 
Jan. 8, 2021, 3 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 3.0 ppb (3) N/A 135.1 μg/m3 (91) 64.9 μg/m3 (156) 156.0
 
Jan. 8, 2021, 2 p.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 3.0 ppb (3) N/A 122.6 μg/m3 (85) 47.3 μg/m3 (131) 131.0
 
Jan. 8, 2021, 1 p.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 3.0 ppb (3) N/A 91.6 μg/m3 (70) 48.1 μg/m3 (133) 133.0
 
Jan. 8, 2021, noon N/A N/A N/A N/A N/A 16.0 ppb (23) 3.0 ppb (3) N/A 90.4 μg/m3 (69) 53.1 μg/m3 (145) 145.0
 
Jan. 8, 2021, 11 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 3.0 ppb (3) N/A 91.8 μg/m3 (70) 51.7 μg/m3 (141) 141.0
 
Jan. 8, 2021, 10 a.m. N/A N/A N/A N/A N/A 25.0 ppb (36) 7.0 ppb (7) N/A 81.6 μg/m3 (65) 43.5 μg/m3 (121) 121.0
 
Jan. 8, 2021, 9 a.m. N/A N/A N/A N/A N/A 27.0 ppb (39) 9.0 ppb (9) N/A 77.0 μg/m3 (62) 51.2 μg/m3 (140) 140.0
 
Jan. 8, 2021, 8 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 4.0 ppb (4) N/A 83.6 μg/m3 (66) 59.3 μg/m3 (153) 153.0
 
Jan. 8, 2021, 7 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 5.0 ppb (5) N/A 103.9 μg/m3 (76) 56.9 μg/m3 (152) 152.0
 
Jan. 8, 2021, 6 a.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 3.0 ppb (3) N/A 144.2 μg/m3 (96) 65.4 μg/m3 (157) 157.0
 
Jan. 8, 2021, 5 a.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 4.0 ppb (4) N/A 164.1 μg/m3 (106) 56.0 μg/m3 (152) 152.0
 
Jan. 8, 2021, 4 a.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 3.0 ppb (3) N/A 176.7 μg/m3 (112) 68.7 μg/m3 (158) 158.0
 
Jan. 8, 2021, 3 a.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 4.0 ppb (4) N/A N/A 51.7 μg/m3 (141) 141.0
 
Jan. 8, 2021, 2 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 4.0 ppb (4) N/A 129.0 μg/m3 (88) 23.5 μg/m3 (75) 88.0
 
Jan. 8, 2021, 1 a.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 31.0 ppb (29) N/A 58.0 μg/m3 (53) 16.3 μg/m3 (60) 60.0
 
Jan. 8, 2021, midnight N/A N/A N/A N/A N/A 17.0 ppb (25) 46.0 ppb (43) N/A 45.0 μg/m3 (42) 23.9 μg/m3 (76) 76.0
 
Jan. 7, 2021, 11 p.m. N/A N/A N/A N/A N/A 19.0 ppb (28) 46.0 ppb (43) N/A 36.7 μg/m3 (34) 20.6 μg/m3 (69) 69.0
 
Jan. 7, 2021, 10 p.m. N/A N/A N/A N/A N/A 24.0 ppb (35) 46.0 ppb (43) N/A 33.1 μg/m3 (31) 24.7 μg/m3 (78) 78.0
 
Jan. 7, 2021, 9 p.m. N/A N/A N/A N/A N/A 24.0 ppb (35) 43.0 ppb (40) N/A 30.2 μg/m3 (28) 26.1 μg/m3 (81) 81.0
 
Jan. 7, 2021, 8 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 39.0 ppb (37) N/A 40.2 μg/m3 (38) 30.1 μg/m3 (89) 89.0
 
Jan. 7, 2021, 7 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 32.0 ppb (30) N/A 37.7 μg/m3 (35) 23.2 μg/m3 (75) 75.0
 
Jan. 7, 2021, 6 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 26.0 ppb (25) N/A 40.8 μg/m3 (38) 26.5 μg/m3 (82) 82.0
 
Jan. 7, 2021, 5 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 21.0 ppb (20) N/A 74.6 μg/m3 (61) 55.2 μg/m3 (150) 150.0
 
Jan. 7, 2021, 4 p.m. N/A N/A N/A N/A N/A 30.0 ppb (43) 9.0 ppb (9) N/A 152.4 μg/m3 (100) 66.1 μg/m3 (157) 157.0
 
Jan. 7, 2021, 3 p.m. N/A N/A N/A N/A N/A 26.0 ppb (38) 4.0 ppb (4) N/A 138.1 μg/m3 (93) 62.4 μg/m3 (155) 155.0
 
Jan. 7, 2021, 2 p.m. N/A N/A N/A N/A N/A 45.0 ppb (63) 3.0 ppb (3) N/A 104.7 μg/m3 (76) 29.6 μg/m3 (88) 88.0
 
Jan. 7, 2021, 1 p.m. N/A N/A N/A N/A N/A 19.0 ppb (28) 2.0 ppb (2) N/A 89.2 μg/m3 (68) 39.5 μg/m3 (111) 111.0
 
Jan. 7, 2021, noon N/A N/A N/A N/A N/A 34.0 ppb (49) 3.0 ppb (3) N/A 106.2 μg/m3 (77) 38.3 μg/m3 (108) 108.0
 
Jan. 7, 2021, 11 a.m. N/A N/A N/A N/A N/A 23.0 ppb (33) 6.0 ppb (6) N/A 80.8 μg/m3 (64) 34.1 μg/m3 (98) 98.0
 
Jan. 7, 2021, 10 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 5.0 ppb (5) N/A 65.0 μg/m3 (56) 29.6 μg/m3 (88) 88.0
 
Jan. 7, 2021, 9 a.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 3.0 ppb (3) N/A 63.4 μg/m3 (56) 29.5 μg/m3 (88) 88.0
 
Jan. 7, 2021, 8 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 3.0 ppb (3) N/A 76.0 μg/m3 (62) 37.4 μg/m3 (106) 106.0
 
Jan. 7, 2021, 7 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 3.0 ppb (3) N/A 88.0 μg/m3 (68) 48.4 μg/m3 (133) 133.0
 
Jan. 7, 2021, 6 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 3.0 ppb (3) N/A 111.8 μg/m3 (80) 43.5 μg/m3 (121) 121.0
 
Jan. 7, 2021, 5 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 3.0 ppb (3) N/A 100.7 μg/m3 (74) 38.1 μg/m3 (108) 108.0
 
Jan. 7, 2021, 4 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 3.0 ppb (3) N/A 118.2 μg/m3 (83) 34.7 μg/m3 (99) 99.0
 
Jan. 7, 2021, 3 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 3.0 ppb (3) N/A 124.1 μg/m3 (86) 29.7 μg/m3 (89) 89.0
 
Jan. 7, 2021, 2 a.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 6.0 ppb (6) N/A 96.1 μg/m3 (72) 12.5 μg/m3 (52) 72.0
 
Jan. 7, 2021, 1 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 16.0 ppb (15) N/A 65.8 μg/m3 (57) 8.1 μg/m3 (34) 57.0
 
Jan. 7, 2021, midnight N/A N/A N/A N/A N/A 14.0 ppb (20) 26.0 ppb (25) N/A 39.5 μg/m3 (37) 6.0 μg/m3 (25) 37.0
 
Jan. 6, 2021, 11 p.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 29.0 ppb (27) N/A 63.8 μg/m3 (56) 9.8 μg/m3 (41) 56.0
 
Jan. 6, 2021, 10 p.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 34.0 ppb (32) N/A 32.6 μg/m3 (31) 11.7 μg/m3 (49) 49.0
 
Jan. 6, 2021, 9 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 38.0 ppb (36) N/A 36.7 μg/m3 (34) 17.5 μg/m3 (63) 63.0
 
Jan. 6, 2021, 8 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 38.0 ppb (36) N/A 25.7 μg/m3 (24) 19.3 μg/m3 (67) 67.0
 
Jan. 6, 2021, 7 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 36.0 ppb (34) N/A 37.3 μg/m3 (35) 30.1 μg/m3 (89) 89.0
 
Jan. 6, 2021, 6 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 32.0 ppb (30) N/A 41.5 μg/m3 (39) N/A 39.0
 
Jan. 6, 2021, 5 p.m. N/A N/A N/A N/A N/A 25.0 ppb (36) 23.0 ppb (22) N/A 107.9 μg/m3 (78) 92.2 μg/m3 (170) 170.0
 
Jan. 6, 2021, 4 p.m. N/A N/A N/A N/A N/A 53.0 ppb (73) 10.0 ppb (10) N/A 154.7 μg/m3 (101) 68.6 μg/m3 (158) 158.0
 
Jan. 6, 2021, 3 p.m. N/A N/A N/A N/A N/A 60.0 ppb (82) 5.0 ppb (5) N/A 147.8 μg/m3 (97) 49.4 μg/m3 (136) 136.0
 
Jan. 6, 2021, 2 p.m. N/A N/A N/A N/A N/A 46.0 ppb (64) 3.0 ppb (3) N/A 117.5 μg/m3 (82) 39.5 μg/m3 (111) 111.0
 
Jan. 6, 2021, 1 p.m. N/A N/A N/A N/A N/A 22.0 ppb (32) 3.0 ppb (3) N/A 94.3 μg/m3 (71) 27.3 μg/m3 (83) 83.0
 
Jan. 6, 2021, noon N/A N/A N/A N/A N/A 17.0 ppb (25) 3.0 ppb (3) N/A 88.4 μg/m3 (68) 41.1 μg/m3 (115) 115.0
 
Jan. 6, 2021, 11 a.m. N/A N/A N/A N/A N/A 29.0 ppb (42) 2.0 ppb (2) N/A 108.9 μg/m3 (78) 44.2 μg/m3 (123) 123.0
 
Jan. 6, 2021, 10 a.m. N/A N/A N/A N/A N/A 23.0 ppb (33) 3.0 ppb (3) N/A 89.7 μg/m3 (69) 42.1 μg/m3 (118) 118.0
 
Jan. 6, 2021, 9 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 5.0 ppb (5) N/A 87.9 μg/m3 (68) 41.9 μg/m3 (117) 117.0
 
Jan. 6, 2021, 8 a.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 5.0 ppb (5) N/A 83.6 μg/m3 (66) 44.6 μg/m3 (124) 124.0
 
Jan. 6, 2021, 7 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 4.0 ppb (4) N/A 96.1 μg/m3 (72) 43.2 μg/m3 (120) 120.0
 
Jan. 6, 2021, 6 a.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 5.0 ppb (5) N/A 107.4 μg/m3 (77) 56.8 μg/m3 (152) 152.0
 
Jan. 6, 2021, 5 a.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 7.0 ppb (7) N/A 134.7 μg/m3 (91) 55.7 μg/m3 (152) 152.0
 
Jan. 6, 2021, 4 a.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 8.0 ppb (8) N/A 166.6 μg/m3 (107) 70.7 μg/m3 (159) 159.0
 
Jan. 6, 2021, 3 a.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 5.0 ppb (5) N/A 214.6 μg/m3 (131) 58.6 μg/m3 (153) 153.0
 
Jan. 6, 2021, 2 a.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 6.0 ppb (6) N/A 143.6 μg/m3 (95) 28.1 μg/m3 (85) 95.0
 
Jan. 6, 2021, 1 a.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 36.0 ppb (34) N/A 74.5 μg/m3 (61) 22.4 μg/m3 (73) 73.0
 
Jan. 6, 2021, midnight N/A N/A N/A N/A N/A 15.0 ppb (22) 55.0 ppb (51) N/A 43.2 μg/m3 (40) 28.9 μg/m3 (87) 87.0
 
Jan. 5, 2021, 11 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 62.0 ppb (74) N/A 51.3 μg/m3 (48) 23.9 μg/m3 (76) 76.0
 
Jan. 5, 2021, 10 p.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 60.0 ppb (68) N/A 37.0 μg/m3 (35) 28.8 μg/m3 (87) 87.0
 
Jan. 5, 2021, 9 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 56.0 ppb (55) N/A 28.2 μg/m3 (27) 28.9 μg/m3 (87) 87.0
 
Jan. 5, 2021, 8 p.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 47.0 ppb (44) N/A 52.1 μg/m3 (49) 31.7 μg/m3 (93) 93.0