ID: 7876

AQSQID: 840180890034

Site Name: East Chicago - Marina

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

Updated: Aug. 5, 2021, 9:57 p.m.

Location: E Chicago (Indiana Harbor), IN

Reporting: True, Located: True

Current AQI: 48.0

E Chicago (Indiana Harbor) IN, US: 41.653446, -87.435435

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Aug. 5, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 11.4 μg/m3 (48) 48.0
 
Aug. 5, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 12.1 μg/m3 (51) 51.0
 
Aug. 5, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 11.6 μg/m3 (49) 49.0
 
Aug. 5, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 11.1 μg/m3 (47) 47.0
 
Aug. 5, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 10.5 μg/m3 (44) 44.0
 
Aug. 5, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 11.6 μg/m3 (49) 49.0
 
Aug. 5, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 14.2 μg/m3 (56) 56.0
 
Aug. 5, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 17.7 μg/m3 (63) 63.0
 
Aug. 5, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 23.3 μg/m3 (75) 75.0
 
Aug. 5, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 30.6 μg/m3 (90) 90.0
 
Aug. 5, 2021, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 28.0 μg/m3 (85) 85.0
 
Aug. 5, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 28.5 μg/m3 (86) 86.0
 
Aug. 5, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 25.6 μg/m3 (80) 80.0
 
Aug. 5, 2021, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 21.7 μg/m3 (72) 72.0
 
Aug. 5, 2021, 6 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 19.9 μg/m3 (68) 68.0
 
Aug. 5, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 21.1 μg/m3 (70) 70.0
 
Aug. 5, 2021, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 17.2 μg/m3 (62) 62.0
 
Aug. 5, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 14.5 μg/m3 (57) 57.0
 
Aug. 5, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.1 μg/m3 (34) 34.0
 
Aug. 5, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 7.7 μg/m3 (33) 33.0
 
Aug. 5, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.2 μg/m3 (35) 35.0
 
Aug. 4, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 9.4 μg/m3 (40) 40.0
 
Aug. 4, 2021, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 8.6 μg/m3 (36) 36.0
 
Aug. 4, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 8.7 μg/m3 (37) 37.0
 
Aug. 4, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Aug. 4, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 10.1 μg/m3 (43) 43.0
 
Aug. 4, 2021, 6 p.m. N/A N/A N/A N/A N/A 3.0 ppb (5) N/A N/A N/A 12.6 μg/m3 (53) 53.0
 
Aug. 4, 2021, 5 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 16.4 μg/m3 (61) 61.0
 
Aug. 4, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 20.7 μg/m3 (70) 70.0
 
Aug. 4, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 15.5 μg/m3 (59) 59.0
 
Aug. 4, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 14.2 μg/m3 (56) 56.0
 
Aug. 4, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 17.8 μg/m3 (63) 63.0
 
Aug. 4, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 14.8 μg/m3 (57) 57.0
 
Aug. 4, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 17.2 μg/m3 (62) 62.0
 
Aug. 4, 2021, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 19.8 μg/m3 (68) 68.0
 
Aug. 4, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 17.0 μg/m3 (62) 62.0
 
Aug. 4, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 16.5 μg/m3 (61) 61.0
 
Aug. 4, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 19.2 μg/m3 (66) 66.0
 
Aug. 4, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 17.5 μg/m3 (63) 63.0
 
Aug. 4, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 17.2 μg/m3 (62) 62.0
 
Aug. 4, 2021, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 14.9 μg/m3 (57) 57.0
 
Aug. 4, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 18.4 μg/m3 (65) 65.0
 
Aug. 4, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 10.4 μg/m3 (44) 44.0
 
Aug. 4, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 9.8 μg/m3 (41) 41.0
 
Aug. 4, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Aug. 3, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 10.9 μg/m3 (46) 46.0
 
Aug. 3, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 12.5 μg/m3 (52) 52.0
 
Aug. 3, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 13.3 μg/m3 (54) 54.0
 
Aug. 3, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 13.1 μg/m3 (54) 54.0
 
Aug. 3, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 12.4 μg/m3 (52) 52.0
 
Aug. 3, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 12.6 μg/m3 (53) 53.0
 
Aug. 3, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 13.0 μg/m3 (53) 53.0
 
Aug. 3, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 12.8 μg/m3 (53) 53.0
 
Aug. 3, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 13.4 μg/m3 (54) 54.0
 
Aug. 3, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 14.7 μg/m3 (57) 57.0
 
Aug. 3, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 13.8 μg/m3 (55) 55.0
 
Aug. 3, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 15.7 μg/m3 (59) 59.0
 
Aug. 3, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 15.3 μg/m3 (58) 58.0
 
Aug. 3, 2021, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 12.9 μg/m3 (53) 53.0
 
Aug. 3, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 12.5 μg/m3 (52) 52.0
 
Aug. 3, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 13.1 μg/m3 (54) 54.0
 
Aug. 3, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 16.2 μg/m3 (60) 60.0
 
Aug. 3, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 12.9 μg/m3 (53) 53.0
 
Aug. 3, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 13.7 μg/m3 (55) 55.0
 
Aug. 3, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 10.6 μg/m3 (45) 45.0
 
Aug. 3, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.3 μg/m3 (35) 35.0
 
Aug. 3, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.5 μg/m3 (36) 36.0
 
Aug. 3, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.8 μg/m3 (37) 37.0
 
Aug. 3, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Aug. 2, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.9 μg/m3 (38) 38.0
 
Aug. 2, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Aug. 2, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 9.8 μg/m3 (41) 41.0
 
Aug. 2, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 9.9 μg/m3 (42) 42.0
 
Aug. 2, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 10.2 μg/m3 (43) 43.0
 
Aug. 2, 2021, 6 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 10.4 μg/m3 (44) 44.0
 
Aug. 2, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 9.4 μg/m3 (40) 40.0
 
Aug. 2, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 10.1 μg/m3 (43) 43.0
 
Aug. 2, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 8.5 μg/m3 (36) 36.0
 
Aug. 2, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 9.6 μg/m3 (40) 40.0
 
Aug. 2, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 10.6 μg/m3 (45) 45.0
 
Aug. 2, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 14.5 μg/m3 (57) 57.0
 
Aug. 2, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 15.1 μg/m3 (58) 58.0
 
Aug. 2, 2021, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 14.4 μg/m3 (56) 56.0
 
Aug. 2, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 14.5 μg/m3 (57) 57.0
 
Aug. 2, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 14.6 μg/m3 (57) 57.0
 
Aug. 2, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 10.7 μg/m3 (45) 45.0
 
Aug. 2, 2021, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 12.2 μg/m3 (52) 52.0
 
Aug. 2, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 14.4 μg/m3 (56) 56.0
 
Aug. 2, 2021, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 15.1 μg/m3 (58) 58.0
 
Aug. 2, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.9 μg/m3 (59) 59.0
 
Aug. 2, 2021, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 16.1 μg/m3 (60) 60.0
 
Aug. 2, 2021, 1 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 16.6 μg/m3 (61) 61.0
 
Aug. 2, 2021, midnight N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 18.2 μg/m3 (64) 64.0
 
Aug. 1, 2021, 11 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 20.1 μg/m3 (68) 68.0
 
Aug. 1, 2021, 10 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 24.5 μg/m3 (78) 78.0
 
Aug. 1, 2021, 9 p.m. N/A N/A N/A N/A N/A 3.0 ppb (5) N/A N/A N/A 28.1 μg/m3 (85) 85.0
 
Aug. 1, 2021, 8 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A N/A N/A 31.0 μg/m3 (91) 91.0
 
Aug. 1, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 30.7 μg/m3 (91) 91.0
 
Aug. 1, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 46.7 μg/m3 (129) 129.0
 
Aug. 1, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 58.6 μg/m3 (153) 153.0
 
Aug. 1, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 46.2 μg/m3 (128) 128.0
 
Aug. 1, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 48.7 μg/m3 (134) 134.0
 
Aug. 1, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 40.7 μg/m3 (114) 114.0
 
Aug. 1, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 29.1 μg/m3 (87) 87.0
 
Aug. 1, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 35.9 μg/m3 (102) 102.0
 
Aug. 1, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 39.4 μg/m3 (111) 111.0
 
Aug. 1, 2021, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 43.5 μg/m3 (121) 121.0
 
Aug. 1, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 32.3 μg/m3 (94) 94.0
 
Aug. 1, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 26.4 μg/m3 (82) 82.0
 
Aug. 1, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 26.0 μg/m3 (81) 81.0
 
Aug. 1, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 24.8 μg/m3 (78) 78.0
 
Aug. 1, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 22.8 μg/m3 (74) 74.0
 
Aug. 1, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 23.4 μg/m3 (75) 75.0
 
Aug. 1, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 22.4 μg/m3 (73) 73.0
 
Aug. 1, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 23.3 μg/m3 (75) 75.0
 
Aug. 1, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 23.9 μg/m3 (76) 76.0
 
Aug. 1, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 22.2 μg/m3 (73) 73.0
 
July 31, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 20.6 μg/m3 (69) 69.0
 
July 31, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 10.9 μg/m3 (46) 46.0
 
July 31, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 9.6 μg/m3 (40) 40.0
 
July 31, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.8 μg/m3 (37) 37.0
 
July 31, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.2 μg/m3 (35) 35.0
 
July 31, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 6.5 μg/m3 (28) 28.0
 
July 31, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.8 μg/m3 (20) 20.0
 
July 31, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 4.1 μg/m3 (18) 18.0
 
July 31, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 31, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 4.1 μg/m3 (18) 18.0
 
July 31, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 4.2 μg/m3 (18) 18.0
 
July 31, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 4.5 μg/m3 (19) 19.0
 
July 31, 2021, 11 a.m. N/A N/A N/A N/A N/A 3.0 ppb (5) N/A N/A N/A 6.6 μg/m3 (28) 28.0
 
July 31, 2021, 10 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 6.9 μg/m3 (29) 29.0
 
July 31, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 7.1 μg/m3 (30) 30.0
 
July 31, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
July 31, 2021, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
July 31, 2021, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
July 31, 2021, 5 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 6.5 μg/m3 (28) 28.0
 
July 31, 2021, 4 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 6.2 μg/m3 (26) 26.0
 
July 31, 2021, 3 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
July 31, 2021, 2 a.m. N/A N/A N/A N/A N/A 3.0 ppb (5) N/A N/A N/A 6.5 μg/m3 (28) 28.0
 
July 31, 2021, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
July 31, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.6 μg/m3 (24) 24.0
 
July 30, 2021, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 6.5 μg/m3 (28) 28.0
 
July 30, 2021, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.5 μg/m3 (23) 23.0
 
July 30, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.7 μg/m3 (24) 24.0
 
July 30, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.7 μg/m3 (24) 24.0
 
July 30, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.1 μg/m3 (22) 22.0
 
July 30, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.5 μg/m3 (23) 23.0
 
July 30, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.9 μg/m3 (25) 25.0
 
July 30, 2021, 4 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 6.2 μg/m3 (26) 26.0
 
July 30, 2021, 3 p.m. N/A N/A N/A N/A N/A 3.0 ppb (5) N/A N/A N/A 5.7 μg/m3 (24) 24.0
 
July 30, 2021, 2 p.m. N/A N/A N/A N/A N/A 3.0 ppb (5) N/A N/A N/A 6.8 μg/m3 (29) 29.0
 
July 30, 2021, 1 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 6.5 μg/m3 (28) 28.0
 
July 30, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 6.1 μg/m3 (26) 26.0
 
July 30, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 6.7 μg/m3 (28) 28.0
 
July 30, 2021, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 10.5 μg/m3 (44) 44.0
 
July 30, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 17.1 μg/m3 (62) 62.0
 
July 30, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 26.2 μg/m3 (81) 81.0
 
July 30, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 20.6 μg/m3 (69) 69.0
 
July 30, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 18.7 μg/m3 (65) 65.0
 
July 30, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 21.9 μg/m3 (72) 72.0
 
July 30, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 26.2 μg/m3 (81) 81.0
 
July 30, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 25.8 μg/m3 (80) 80.0
 
July 30, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 26.1 μg/m3 (81) 81.0
 
July 30, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 27.9 μg/m3 (85) 85.0
 
July 30, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 25.8 μg/m3 (80) 80.0
 
July 29, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 20.3 μg/m3 (69) 69.0
 
July 29, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 16.4 μg/m3 (61) 61.0
 
July 29, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 16.1 μg/m3 (60) 60.0