ID: 1308

AQSQID: 000091801

Site Name: Fort Chipewyan

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

Updated: July 25, 2021, 9:53 a.m.

Location: Regional Municipality Of Wood Buffalo (Fraser St), CC

Reporting: True, Located: True

Current AQI: 13.0

Regional Municipality Of Wood Buffalo (Fraser St) CC, CA: 58.7083, -111.1764

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 25, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.9 μg/m3 (13) 13.0
 
July 25, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 2.4 μg/m3 (10) 18.0
 
July 25, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 2.5 μg/m3 (11) 20.0
 
July 25, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 2.9 μg/m3 (13) 20.0
 
July 25, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 3.1 μg/m3 (13) 18.0
 
July 25, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 3.9 μg/m3 (17) 18.0
 
July 25, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 6.8 μg/m3 (29) 29.0
 
July 25, 2021, midnight N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 7.7 μg/m3 (33) 33.0
 
July 24, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 8.9 μg/m3 (38) 38.0
 
July 24, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 8.0 μg/m3 (34) 34.0
 
July 24, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 8.4 μg/m3 (36) 36.0
 
July 24, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 8.8 μg/m3 (37) 37.0
 
July 24, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 11.5 μg/m3 (48) 48.0
 
July 24, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 12.3 μg/m3 (52) 52.0
 
July 24, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 12.4 μg/m3 (52) 52.0
 
July 24, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 14.1 μg/m3 (56) 56.0
 
July 24, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 13.3 μg/m3 (54) 54.0
 
July 24, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 13.8 μg/m3 (55) 55.0
 
July 24, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 14.5 μg/m3 (57) 57.0
 
July 24, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (58) 58.0
 
July 24, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 15.4 μg/m3 (58) 58.0
 
July 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 15.7 μg/m3 (59) 59.0
 
July 24, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 17.6 μg/m3 (63) 63.0
 
July 24, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 18.8 μg/m3 (66) 66.0
 
July 24, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 19.2 μg/m3 (66) 66.0
 
July 24, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 21.6 μg/m3 (71) 71.0
 
July 24, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 19.6 μg/m3 (67) 67.0
 
July 24, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 16.7 μg/m3 (61) 61.0
 
July 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 22.0 μg/m3 (72) 72.0
 
July 24, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 19.8 μg/m3 (68) 68.0
 
July 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 16.1 μg/m3 (60) 60.0
 
July 24, 2021, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 15.1 μg/m3 (58) 58.0
 
July 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 6.8 μg/m3 (29) 38.0
 
July 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 6.0 μg/m3 (25) 35.0
 
July 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 3.6 μg/m3 (16) 30.0
 
July 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 3.4 μg/m3 (15) 26.0
 
July 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 3.7 μg/m3 (16) 25.0
 
July 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 2.2 μg/m3 (10) 18.0
 
July 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 1.8 μg/m3 (8) 16.0
 
July 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 1.7 μg/m3 (8) 15.0
 
July 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 1.4 μg/m3 (6) 15.0
 
July 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 1.7 μg/m3 (8) 15.0
 
July 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 1.9 μg/m3 (8) 14.0
 
July 23, 2021, noon N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 1.6 μg/m3 (7) 15.0
 
July 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.6 μg/m3 (7) 7.0
 
July 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 1.8 μg/m3 (8) 18.0
 
July 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 2.5 μg/m3 (11) 23.0
 
July 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 3.3 μg/m3 (14) 30.0
 
July 23, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 3.4 μg/m3 (15) 35.0
 
July 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 3.5 μg/m3 (15) 42.0
 
July 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 3.2 μg/m3 (14) 38.0
 
July 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 4.6 μg/m3 (20) 26.0
 
July 23, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 2.2 μg/m3 (10) 27.0
 
July 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 3.5 μg/m3 (15) 25.0
 
July 23, 2021, midnight N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 13.0 μg/m3 (53) 53.0
 
July 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 3.7 μg/m3 (16) 25.0
 
July 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 2.9 μg/m3 (13) 26.0
 
July 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 4.6 μg/m3 (20) 29.0
 
July 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 6.9 μg/m3 (29) 32.0
 
July 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 10.5 μg/m3 (44) 44.0
 
July 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 15.5 μg/m3 (59) 59.0
 
July 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 23.6 μg/m3 (76) 76.0
 
July 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 26.7 μg/m3 (82) 82.0
 
July 22, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 31.4 μg/m3 (92) 92.0
 
July 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 27.6 μg/m3 (84) 84.0
 
July 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 27.6 μg/m3 (84) 84.0
 
July 22, 2021, noon N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 27.3 μg/m3 (83) 83.0
 
July 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 26.2 μg/m3 (81) 81.0
 
July 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 26.1 μg/m3 (81) 81.0
 
July 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 29.1 μg/m3 (87) 87.0
 
July 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 28.3 μg/m3 (86) 86.0
 
July 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 26.3 μg/m3 (81) 81.0
 
July 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 26.9 μg/m3 (83) 83.0
 
July 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 31.4 μg/m3 (92) 92.0
 
July 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 22.4 μg/m3 (73) 73.0
 
July 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 20.2 μg/m3 (69) 69.0
 
July 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 20.5 μg/m3 (69) 69.0
 
July 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 20.3 μg/m3 (69) 69.0
 
July 22, 2021, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 21.2 μg/m3 (71) 71.0
 
July 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 21.3 μg/m3 (71) 71.0
 
July 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 20.4 μg/m3 (69) 69.0
 
July 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 18.4 μg/m3 (65) 65.0
 
July 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 23.0 μg/m3 (74) 74.0
 
July 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 24.7 μg/m3 (78) 78.0
 
July 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 23.7 μg/m3 (76) 76.0
 
July 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 28.0 μg/m3 (85) 85.0
 
July 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 26.7 μg/m3 (82) 82.0
 
July 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 34.3 μg/m3 (98) 98.0
 
July 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 39.3 μg/m3 (111) 111.0
 
July 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 40.5 μg/m3 (114) 114.0
 
July 21, 2021, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 40.7 μg/m3 (114) 114.0
 
July 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 48.8 μg/m3 (134) 134.0
 
July 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 53.3 μg/m3 (145) 145.0
 
July 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 53.0 μg/m3 (145) 145.0
 
July 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 53.3 μg/m3 (145) 145.0
 
July 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 53.8 μg/m3 (147) 147.0
 
July 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 53.3 μg/m3 (145) 145.0
 
July 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 54.1 μg/m3 (147) 147.0
 
July 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 53.2 μg/m3 (145) 145.0
 
July 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 48.7 μg/m3 (134) 134.0
 
July 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 50.8 μg/m3 (139) 139.0
 
July 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 55.6 μg/m3 (152) 152.0
 
July 21, 2021, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 54.9 μg/m3 (149) 149.0
 
July 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 56.1 μg/m3 (152) 152.0
 
July 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 55.8 μg/m3 (152) 152.0
 
July 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 63.0 μg/m3 (155) 155.0
 
July 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 57.6 μg/m3 (153) 153.0
 
July 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 55.2 μg/m3 (150) 150.0
 
July 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 56.1 μg/m3 (152) 152.0
 
July 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 52.6 μg/m3 (144) 144.0
 
July 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 49.3 μg/m3 (135) 135.0
 
July 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 51.6 μg/m3 (141) 141.0
 
July 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 53.2 μg/m3 (145) 145.0
 
July 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 52.0 μg/m3 (142) 142.0
 
July 20, 2021, noon N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 52.3 μg/m3 (143) 143.0
 
July 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 58.9 μg/m3 (153) 153.0
 
July 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 67.4 μg/m3 (158) 158.0
 
July 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 75.4 μg/m3 (162) 162.0
 
July 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 91.0 μg/m3 (170) 170.0
 
July 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 107.6 μg/m3 (178) 178.0
 
July 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 118.3 μg/m3 (184) 184.0
 
July 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 121.1 μg/m3 (185) 185.0
 
July 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 80.4 μg/m3 (164) 164.0
 
July 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 56.5 μg/m3 (152) 152.0
 
July 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 58.6 μg/m3 (153) 153.0
 
July 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 57.6 μg/m3 (153) 153.0
 
July 20, 2021, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 56.6 μg/m3 (152) 152.0
 
July 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 54.4 μg/m3 (148) 148.0
 
July 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 54.6 μg/m3 (149) 149.0
 
July 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 51.4 μg/m3 (141) 141.0
 
July 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 53.7 μg/m3 (146) 146.0
 
July 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 54.5 μg/m3 (148) 148.0
 
July 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 50.5 μg/m3 (138) 138.0
 
July 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 46.0 μg/m3 (127) 127.0
 
July 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 44.2 μg/m3 (123) 123.0
 
July 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 38.3 μg/m3 (108) 108.0
 
July 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 33.3 μg/m3 (96) 96.0
 
July 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 27.8 μg/m3 (85) 85.0
 
July 19, 2021, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 17.6 μg/m3 (63) 63.0
 
July 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 11.9 μg/m3 (50) 50.0
 
July 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 6.8 μg/m3 (29) 29.0
 
July 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 6.4 μg/m3 (27) 27.0
 
July 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 5.7 μg/m3 (24) 24.0
 
July 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.8 μg/m3 (20) 20.0
 
July 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 4.5 μg/m3 (19) 24.0
 
July 19, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 4.7 μg/m3 (20) 25.0
 
July 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 4.7 μg/m3 (20) 25.0
 
July 19, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 5.8 μg/m3 (25) 25.0
 
July 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 6.2 μg/m3 (26) 26.0
 
July 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 7.1 μg/m3 (30) 30.0
 
July 19, 2021, midnight N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 8.1 μg/m3 (34) 34.0
 
July 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 9.2 μg/m3 (39) 39.0
 
July 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 8.9 μg/m3 (38) 38.0
 
July 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 8.0 μg/m3 (34) 34.0
 
July 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 8.1 μg/m3 (34) 34.0
 
July 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 9.8 μg/m3 (41) 41.0
 
July 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 12.9 μg/m3 (53) 53.0
 
July 18, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 18.6 μg/m3 (65) 65.0
 
July 18, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 21.6 μg/m3 (71) 71.0
 
July 18, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 21.5 μg/m3 (71) 71.0
 
July 18, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 24.9 μg/m3 (78) 78.0
 
July 18, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 47.4 μg/m3 (131) 131.0
 
July 18, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 33.7 μg/m3 (97) 97.0
 
July 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 30.0 μg/m3 (89) 89.0
 
July 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 26.8 μg/m3 (82) 82.0
 
July 18, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 23.8 μg/m3 (76) 76.0
 
July 18, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 17.7 μg/m3 (63) 63.0
 
July 18, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 17.2 μg/m3 (62) 62.0