ID: 1157

AQSQID: 170310076

Site Name: Chi_Com

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

Updated: June 25, 2022, 6:38 p.m.

Location: Chicago (Ashburn), IL

Reporting: True, Located: True

Current AQI: 50.0

Chicago (Ashburn) IL, US: 41.7547, -87.7136

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
June 25, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 9.1 μg/m3 (38) 41.0
 
June 25, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 12.0 μg/m3 (50) 50.0
 
June 25, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 12.0 μg/m3 (50) 50.0
 
June 25, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 11.7 μg/m3 (49) 49.0
 
June 25, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 11.7 μg/m3 (49) 49.0
 
June 25, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 11.7 μg/m3 (49) 49.0
 
June 25, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 11.3 μg/m3 (48) 48.0
 
June 25, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 11.3 μg/m3 (48) 48.0
 
June 25, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 11.3 μg/m3 (48) 48.0
 
June 25, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 11.3 μg/m3 (48) 48.0
 
June 25, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 11.3 μg/m3 (48) 48.0
 
June 25, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 11.3 μg/m3 (48) 48.0
 
June 25, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 10.5 μg/m3 (44) 44.0
 
June 25, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 10.5 μg/m3 (44) 44.0
 
June 25, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 10.5 μg/m3 (44) 44.0
 
June 25, 2022, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 9.7 μg/m3 (41) 41.0
 
June 25, 2022, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 9.7 μg/m3 (41) 41.0
 
June 25, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 10.5 μg/m3 (44) 44.0
 
June 25, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 8.7 μg/m3 (37) 37.0
 
June 25, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 14.1 μg/m3 (56) 56.0
 
June 25, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 14.1 μg/m3 (56) 56.0
 
June 25, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 19.1 μg/m3 (66) 66.0
 
June 25, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A N/A 15.8 μg/m3 (59) 78.0
 
June 25, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A N/A 15.8 μg/m3 (59) 78.0
 
June 25, 2022, midnight N/A N/A N/A N/A N/A N/A 80.0 ppb (106) N/A N/A 10.0 μg/m3 (42) 106.0
 
June 24, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 78.0 ppb (105) N/A N/A 9.6 μg/m3 (40) 105.0
 
June 24, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 73.0 ppb (103) N/A N/A 13.4 μg/m3 (54) 103.0
 
June 24, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 81.0 ppb (107) N/A N/A 13.2 μg/m3 (54) 107.0
 
June 24, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 87.0 ppb (110) N/A N/A 8.0 μg/m3 (34) 110.0
 
June 24, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 87.0 ppb (110) N/A N/A 8.0 μg/m3 (34) 110.0
 
June 24, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 6.7 μg/m3 (28) 61.0
 
June 24, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 9.6 μg/m3 (40) 40.0
 
June 24, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 7.9 μg/m3 (33) 33.0
 
June 24, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A N/A 10.9 μg/m3 (46) 46.0
 
June 24, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A N/A 10.9 μg/m3 (46) 46.0
 
June 24, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A N/A 10.9 μg/m3 (46) 46.0
 
June 24, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 13.6 μg/m3 (55) 55.0
 
June 24, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 17.2 μg/m3 (62) 62.0
 
June 24, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 17.2 μg/m3 (62) 62.0
 
June 24, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 16.6 μg/m3 (61) 61.0
 
June 24, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 16.6 μg/m3 (61) 61.0
 
June 24, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A N/A 21.3 μg/m3 (71) 71.0
 
June 24, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 4.9 μg/m3 (21) 21.0
 
June 24, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 4.1 μg/m3 (18) 18.0
 
June 24, 2022, midnight N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 4.1 μg/m3 (18) 28.0
 
June 23, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 4.8 μg/m3 (20) 35.0
 
June 23, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 4.1 μg/m3 (18) 37.0
 
June 23, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 5.2 μg/m3 (22) 38.0
 
June 23, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 5.2 μg/m3 (22) 38.0
 
June 23, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 5.2 μg/m3 (22) 38.0
 
June 23, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 5.8 μg/m3 (25) 38.0
 
June 23, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 6.0 μg/m3 (25) 38.0
 
June 23, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 6.0 μg/m3 (25) 38.0
 
June 23, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 8.1 μg/m3 (34) 38.0
 
June 23, 2022, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 6.2 μg/m3 (26) 34.0
 
June 23, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 10.7 μg/m3 (45) 45.0
 
June 23, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 10.7 μg/m3 (45) 45.0
 
June 23, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 8.9 μg/m3 (38) 38.0
 
June 23, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 11.6 μg/m3 (49) 49.0
 
June 23, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 6.4 μg/m3 (27) 27.0
 
June 23, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 17.3 μg/m3 (62) 62.0
 
June 23, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 11.2 μg/m3 (47) 47.0
 
June 23, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 11.2 μg/m3 (47) 47.0
 
June 23, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 11.2 μg/m3 (47) 47.0
 
June 22, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A N/A 8.0 μg/m3 (34) 87.0
 
June 22, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A N/A 8.0 μg/m3 (34) 87.0
 
June 22, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A N/A 6.7 μg/m3 (28) 91.0
 
June 22, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A N/A 6.7 μg/m3 (28) 91.0
 
June 22, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (97) N/A N/A 9.8 μg/m3 (41) 97.0
 
June 22, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (102) N/A N/A 6.1 μg/m3 (26) 102.0
 
June 22, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A N/A 7.3 μg/m3 (31) 74.0
 
June 22, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A N/A 7.3 μg/m3 (31) 74.0
 
June 22, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 3.7 μg/m3 (16) 43.0
 
June 22, 2022, noon N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 12.2 μg/m3 (52) 52.0
 
June 22, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 8.5 μg/m3 (36) 38.0
 
June 22, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 8.1 μg/m3 (34) 39.0
 
June 22, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 12.3 μg/m3 (52) 52.0
 
June 22, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 12.3 μg/m3 (52) 52.0
 
June 22, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 14.6 μg/m3 (57) 57.0
 
June 22, 2022, midnight N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A N/A 15.9 μg/m3 (59) 78.0
 
June 21, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A N/A 14.6 μg/m3 (57) 78.0
 
June 21, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A N/A 14.8 μg/m3 (57) 94.0
 
June 21, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A N/A 14.8 μg/m3 (57) 94.0
 
June 21, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A N/A 14.8 μg/m3 (57) 94.0
 
June 21, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A N/A 19.3 μg/m3 (67) 94.0
 
June 21, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A N/A 19.3 μg/m3 (67) 94.0
 
June 21, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A N/A 19.3 μg/m3 (67) 94.0
 
June 21, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (97) N/A N/A N/A 97.0
 
June 21, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A N/A 68.0
 
June 21, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A N/A 68.0
 
June 21, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A N/A 45.0
 
June 21, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 8.8 μg/m3 (37) 45.0
 
June 21, 2022, noon N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
June 21, 2022, noon N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 8.8 μg/m3 (37) 37.0
 
June 21, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 10.4 μg/m3 (44) 44.0
 
June 21, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
June 21, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A N/A 8.8 μg/m3 (37) 74.0
 
June 21, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A N/A 8.8 μg/m3 (37) 74.0
 
June 21, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A N/A 8.8 μg/m3 (37) 71.0
 
June 21, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A N/A 8.8 μg/m3 (37) 94.0
 
June 21, 2022, midnight N/A N/A N/A N/A N/A N/A 74.0 ppb (103) N/A N/A 10.4 μg/m3 (44) 103.0
 
June 20, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 81.0 ppb (107) N/A N/A 8.8 μg/m3 (37) 107.0
 
June 20, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 80.0 ppb (106) N/A N/A 10.4 μg/m3 (44) 106.0
 
June 20, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 81.0 ppb (107) N/A N/A 8.4 μg/m3 (36) 107.0
 
June 20, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 81.0 ppb (107) N/A N/A 10.2 μg/m3 (43) 107.0
 
June 20, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 81.0 ppb (107) N/A N/A 10.2 μg/m3 (43) 107.0
 
June 20, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 80.0 ppb (106) N/A N/A 11.8 μg/m3 (50) 106.0
 
June 20, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A N/A 10.3 μg/m3 (43) 94.0
 
June 20, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 6.6 μg/m3 (28) 55.0
 
June 20, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 6.6 μg/m3 (28) 55.0
 
June 20, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 7.3 μg/m3 (31) 46.0
 
June 20, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 8.4 μg/m3 (36) 42.0
 
June 20, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 6.2 μg/m3 (26) 44.0
 
June 20, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 7.6 μg/m3 (32) 44.0
 
June 20, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 8.3 μg/m3 (35) 45.0
 
June 20, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 16.1 μg/m3 (60) 60.0
 
June 20, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 5.4 μg/m3 (23) 51.0
 
June 20, 2022, midnight N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A N/A 7.2 μg/m3 (31) 74.0
 
June 20, 2022, midnight N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A N/A 7.2 μg/m3 (31) 74.0
 
June 19, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) N/A N/A 5.3 μg/m3 (23) 84.0
 
June 19, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A N/A 7.1 μg/m3 (30) 91.0
 
June 19, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) N/A N/A 6.3 μg/m3 (27) 84.0
 
June 19, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) N/A N/A 6.3 μg/m3 (27) 84.0
 
June 19, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A N/A 6.3 μg/m3 (27) 81.0
 
June 19, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 8.1 μg/m3 (34) 51.0
 
June 19, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 7.2 μg/m3 (31) 48.0
 
June 19, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 5.4 μg/m3 (23) 44.0
 
June 19, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 6.4 μg/m3 (27) 35.0
 
June 19, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 8.2 μg/m3 (35) 35.0
 
June 19, 2022, noon N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 14.0 μg/m3 (55) 55.0
 
June 19, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A N/A 13.0 μg/m3 (53) 53.0
 
June 19, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 15.7 μg/m3 (59) 59.0
 
June 19, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A N/A 13.8 μg/m3 (55) 55.0
 
June 19, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A N/A 11.0 μg/m3 (46) 46.0
 
June 19, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A N/A 6.1 μg/m3 (26) 26.0
 
June 19, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 5.7 μg/m3 (24) 24.0
 
June 19, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 4.2 μg/m3 (18) 25.0
 
June 19, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 2.6 μg/m3 (11) 26.0
 
June 19, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 4.6 μg/m3 (20) 30.0
 
June 19, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 3.8 μg/m3 (16) 30.0
 
June 19, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 1.5 μg/m3 (7) 29.0
 
June 19, 2022, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 2.2 μg/m3 (10) 33.0
 
June 18, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 2.9 μg/m3 (13) 32.0
 
June 18, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 2.9 μg/m3 (13) 32.0
 
June 18, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 3.4 μg/m3 (15) 37.0
 
June 18, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 2.6 μg/m3 (11) 36.0
 
June 18, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 2.6 μg/m3 (11) 36.0
 
June 18, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 3.7 μg/m3 (16) 34.0
 
June 18, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 3.7 μg/m3 (16) 34.0
 
June 18, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 5.8 μg/m3 (25) 35.0
 
June 18, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 5.8 μg/m3 (25) 35.0
 
June 18, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 5.3 μg/m3 (23) 35.0
 
June 18, 2022, noon N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 4.8 μg/m3 (20) 35.0
 
June 18, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 5.5 μg/m3 (23) 36.0
 
June 18, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 3.2 μg/m3 (14) 40.0
 
June 18, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 3.2 μg/m3 (14) 40.0
 
June 18, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 4.5 μg/m3 (19) 38.0
 
June 18, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 4.5 μg/m3 (19) 38.0
 
June 18, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 4.1 μg/m3 (18) 33.0
 
June 18, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 4.1 μg/m3 (18) 33.0
 
June 18, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 3.7 μg/m3 (16) 41.0
 
June 18, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 3.5 μg/m3 (15) 44.0
 
June 18, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 3.5 μg/m3 (15) 44.0
 
June 18, 2022, midnight N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 6.3 μg/m3 (27) 58.0
 
June 18, 2022, midnight N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 6.3 μg/m3 (27) 58.0
 
June 17, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 8.9 μg/m3 (38) 61.0
 
June 17, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 5.4 μg/m3 (23) 61.0
 
June 17, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A 6.1 μg/m3 (26) 65.0