ID: 2426

AQSQID: 300290049

Site Name: Columbia Falls

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

Updated: Sept. 21, 2020, 2:39 a.m.

Location: Columbia Falls (Talbot Rd), MT

Reporting: True, Located: True

Current AQI: 14.0

Columbia Falls (Talbot Rd) MT, US: 48.363694, -114.189272

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 21, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 3.3 μg/m3 (14) 14.0
 
Sept. 21, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 1.9 μg/m3 (8) 8.0
 
Sept. 20, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 4.4 μg/m3 (18) 18.0
 
Sept. 20, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 4.1 μg/m3 (17) 17.0
 
Sept. 20, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 2.4 μg/m3 (10) 12.0
 
Sept. 20, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 4.1 μg/m3 (17) 17.0
 
Sept. 20, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 6.1 μg/m3 (25) 25.0
 
Sept. 20, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 5.6 μg/m3 (23) 23.0
 
Sept. 20, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 5.4 μg/m3 (23) 23.0
 
Sept. 20, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 3.4 μg/m3 (14) 14.0
 
Sept. 20, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 1.9 μg/m3 (8) 8.0
 
Sept. 20, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 5.4 μg/m3 (23) 23.0
 
Sept. 20, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 7.1 μg/m3 (30) 30.0
 
Sept. 20, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 7.9 μg/m3 (33) 33.0
 
Sept. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 8.6 μg/m3 (36) 36.0
 
Sept. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 10.3 μg/m3 (43) 43.0
 
Sept. 20, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 11.4 μg/m3 (48) 48.0
 
Sept. 20, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 11.2 μg/m3 (47) 47.0
 
Sept. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 9.3 μg/m3 (39) 39.0
 
Sept. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 10.3 μg/m3 (43) 43.0
 
Sept. 20, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 12.9 μg/m3 (52) 52.0
 
Sept. 20, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 14.4 μg/m3 (55) 55.0
 
Sept. 20, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 16.2 μg/m3 (59) 59.0
 
Sept. 20, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 14.4 μg/m3 (55) 55.0
 
Sept. 20, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 17.4 μg/m3 (61) 61.0
 
Sept. 20, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 15.4 μg/m3 (57) 57.0
 
Sept. 19, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 27.4 μg/m3 (83) 83.0
 
Sept. 19, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 50.0 μg/m3 (45) 38.1 μg/m3 (106) 106.0
 
Sept. 19, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 53.0 μg/m3 (48) 41.1 μg/m3 (114) 114.0
 
Sept. 19, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 54.0 μg/m3 (49) 46.2 μg/m3 (127) 127.0
 
Sept. 19, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 59.0 μg/m3 (52) 52.2 μg/m3 (142) 142.0
 
Sept. 19, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 62.0 μg/m3 (54) 45.9 μg/m3 (126) 126.0
 
Sept. 19, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 53.0 μg/m3 (48) 35.8 μg/m3 (101) 101.0
 
Sept. 19, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 46.0 μg/m3 (42) 33.6 μg/m3 (96) 96.0
 
Sept. 19, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 49.0 μg/m3 (45) 35.6 μg/m3 (100) 100.0
 
Sept. 19, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) 33.3 μg/m3 (95) 95.0
 
Sept. 19, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 51.0 μg/m3 (46) 38.4 μg/m3 (107) 107.0
 
Sept. 19, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 69.0 μg/m3 (57) 50.1 μg/m3 (136) 136.0
 
Sept. 19, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 78.0 μg/m3 (62) 64.3 μg/m3 (155) 155.0
 
Sept. 19, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 110.0 μg/m3 (78) 71.4 μg/m3 (158) 158.0
 
Sept. 19, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 92.0 μg/m3 (68) 69.3 μg/m3 (157) 157.0
 
Sept. 19, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 94.0 μg/m3 (70) 66.8 μg/m3 (156) 156.0
 
Sept. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 101.0 μg/m3 (73) 65.3 μg/m3 (155) 155.0
 
Sept. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 96.0 μg/m3 (70) 65.1 μg/m3 (155) 155.0
 
Sept. 19, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 90.0 μg/m3 (68) 63.6 μg/m3 (154) 154.0
 
Sept. 19, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 122.0 μg/m3 (84) 65.8 μg/m3 (155) 155.0
 
Sept. 19, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 119.0 μg/m3 (82) 65.6 μg/m3 (155) 155.0
 
Sept. 19, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 120.0 μg/m3 (82) 62.2 μg/m3 (154) 154.0
 
Sept. 19, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 126.0 μg/m3 (86) 63.0 μg/m3 (154) 154.0
 
Sept. 19, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 122.0 μg/m3 (84) 63.3 μg/m3 (154) 154.0
 
Sept. 18, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 105.0 μg/m3 (75) 62.3 μg/m3 (154) 154.0
 
Sept. 18, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 102.0 μg/m3 (74) 61.5 μg/m3 (153) 153.0
 
Sept. 18, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 83.0 μg/m3 (64) 55.5 μg/m3 (150) 150.0
 
Sept. 18, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 87.0 μg/m3 (66) 59.4 μg/m3 (152) 152.0
 
Sept. 18, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 82.0 μg/m3 (64) 59.5 μg/m3 (152) 152.0
 
Sept. 18, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 79.0 μg/m3 (62) 63.2 μg/m3 (154) 154.0
 
Sept. 18, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 82.0 μg/m3 (64) 62.7 μg/m3 (154) 154.0
 
Sept. 18, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 77.0 μg/m3 (61) 56.1 μg/m3 (150) 150.0
 
Sept. 18, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 71.0 μg/m3 (58) 61.2 μg/m3 (153) 153.0
 
Sept. 18, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 81.0 μg/m3 (63) 60.5 μg/m3 (153) 153.0
 
Sept. 18, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 77.0 μg/m3 (61) 62.7 μg/m3 (154) 154.0
 
Sept. 18, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 63.0 μg/m3 (54) 65.1 μg/m3 (155) 155.0
 
Sept. 18, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 88.0 μg/m3 (66) 57.6 μg/m3 (151) 151.0
 
Sept. 18, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 81.0 μg/m3 (63) 59.8 μg/m3 (152) 152.0
 
Sept. 18, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 75.0 μg/m3 (60) 56.1 μg/m3 (150) 150.0
 
Sept. 18, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 80.0 μg/m3 (62) 66.3 μg/m3 (156) 156.0
 
Sept. 18, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 80.0 μg/m3 (62) 64.8 μg/m3 (155) 155.0
 
Sept. 18, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 86.0 μg/m3 (66) 66.8 μg/m3 (156) 156.0
 
Sept. 18, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 98.0 μg/m3 (72) 68.5 μg/m3 (157) 157.0
 
Sept. 18, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 93.0 μg/m3 (69) 69.7 μg/m3 (157) 157.0
 
Sept. 18, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 96.0 μg/m3 (70) 68.8 μg/m3 (157) 157.0
 
Sept. 18, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 112.0 μg/m3 (78) 77.7 μg/m3 (162) 162.0
 
Sept. 18, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 124.0 μg/m3 (84) 75.8 μg/m3 (161) 161.0
 
Sept. 18, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 110.0 μg/m3 (78) 70.4 μg/m3 (158) 158.0
 
Sept. 17, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 118.0 μg/m3 (82) 71.3 μg/m3 (158) 158.0
 
Sept. 17, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 91.0 μg/m3 (68) 68.2 μg/m3 (157) 157.0
 
Sept. 17, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 100.0 μg/m3 (72) 73.0 μg/m3 (159) 159.0
 
Sept. 17, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 117.0 μg/m3 (81) 76.3 μg/m3 (161) 161.0
 
Sept. 17, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 105.0 μg/m3 (75) 87.1 μg/m3 (167) 167.0
 
Sept. 17, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 99.0 μg/m3 (72) 90.7 μg/m3 (169) 169.0
 
Sept. 17, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 94.0 μg/m3 (70) 72.4 μg/m3 (159) 159.0
 
Sept. 17, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Sept. 17, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 80.0 μg/m3 (62) 71.9 μg/m3 (159) 159.0
 
Sept. 17, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 82.0 μg/m3 (64) 63.8 μg/m3 (154) 154.0
 
Sept. 17, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 74.0 μg/m3 (60) 61.5 μg/m3 (153) 153.0
 
Sept. 17, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 70.0 μg/m3 (58) 54.9 μg/m3 (148) 148.0
 
Sept. 17, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 71.0 μg/m3 (58) 56.9 μg/m3 (151) 151.0
 
Sept. 17, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 66.0 μg/m3 (56) 56.6 μg/m3 (151) 151.0
 
Sept. 17, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 68.0 μg/m3 (56) 60.5 μg/m3 (153) 153.0
 
Sept. 17, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 67.0 μg/m3 (56) 54.7 μg/m3 (148) 148.0
 
Sept. 17, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 73.0 μg/m3 (59) 55.4 μg/m3 (150) 150.0
 
Sept. 17, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 78.0 μg/m3 (62) 62.2 μg/m3 (154) 154.0
 
Sept. 17, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 87.0 μg/m3 (66) 62.5 μg/m3 (154) 154.0
 
Sept. 17, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 86.0 μg/m3 (66) 65.3 μg/m3 (155) 155.0
 
Sept. 17, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 89.0 μg/m3 (67) 63.9 μg/m3 (154) 154.0
 
Sept. 17, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 110.0 μg/m3 (78) 66.6 μg/m3 (156) 156.0
 
Sept. 17, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 110.0 μg/m3 (78) 73.0 μg/m3 (159) 159.0
 
Sept. 17, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 107.0 μg/m3 (76) 69.1 μg/m3 (157) 157.0
 
Sept. 16, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 98.0 μg/m3 (72) 59.6 μg/m3 (152) 152.0
 
Sept. 16, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 93.0 μg/m3 (69) 53.6 μg/m3 (145) 145.0
 
Sept. 16, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 88.0 μg/m3 (66) 53.1 μg/m3 (144) 144.0
 
Sept. 16, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 82.0 μg/m3 (64) 55.2 μg/m3 (149) 149.0
 
Sept. 16, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 67.0 μg/m3 (56) 50.4 μg/m3 (137) 137.0
 
Sept. 16, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 59.0 μg/m3 (52) 43.8 μg/m3 (121) 121.0
 
Sept. 16, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 59.0 μg/m3 (52) 39.4 μg/m3 (110) 110.0
 
Sept. 16, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 52.0 μg/m3 (47) 29.4 μg/m3 (87) 87.0
 
Sept. 16, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 47.0 μg/m3 (43) 26.9 μg/m3 (82) 82.0
 
Sept. 16, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.0 μg/m3 (38) 26.0 μg/m3 (80) 80.0
 
Sept. 16, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 50.0 μg/m3 (45) 22.8 μg/m3 (73) 73.0
 
Sept. 16, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 67.0 μg/m3 (56) 24.3 μg/m3 (76) 76.0
 
Sept. 16, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 52.0 μg/m3 (47) 23.3 μg/m3 (74) 74.0
 
Sept. 16, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 51.0 μg/m3 (46) 27.4 μg/m3 (83) 83.0
 
Sept. 16, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 84.0 μg/m3 (64) 22.1 μg/m3 (71) 71.0
 
Sept. 16, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 59.0 μg/m3 (52) 30.3 μg/m3 (89) 89.0
 
Sept. 16, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 75.0 μg/m3 (60) 29.9 μg/m3 (88) 88.0
 
Sept. 16, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 57.0 μg/m3 (51) 32.1 μg/m3 (93) 93.0
 
Sept. 16, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 67.0 μg/m3 (56) 31.4 μg/m3 (91) 91.0
 
Sept. 16, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 80.0 μg/m3 (62) 49.9 μg/m3 (136) 136.0
 
Sept. 16, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 109.0 μg/m3 (77) 65.3 μg/m3 (155) 155.0
 
Sept. 16, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 90.0 μg/m3 (68) 68.3 μg/m3 (157) 157.0
 
Sept. 16, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 55.2 μg/m3 (149) 149.0
 
Sept. 16, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 98.0 μg/m3 (72) 55.4 μg/m3 (150) 150.0
 
Sept. 15, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 129.0 μg/m3 (87) 96.6 μg/m3 (172) 172.0
 
Sept. 15, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 141.0 μg/m3 (93) 104.8 μg/m3 (176) 176.0
 
Sept. 15, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 156.0 μg/m3 (100) 105.0 μg/m3 (176) 176.0
 
Sept. 15, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 161.0 μg/m3 (103) 110.2 μg/m3 (179) 179.0
 
Sept. 15, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 149.0 μg/m3 (97) 108.3 μg/m3 (178) 178.0
 
Sept. 15, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 150.0 μg/m3 (98) 114.0 μg/m3 (181) 181.0
 
Sept. 15, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 152.0 μg/m3 (98) 117.7 μg/m3 (183) 183.0
 
Sept. 15, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 139.0 μg/m3 (92) 121.9 μg/m3 (185) 185.0
 
Sept. 15, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 138.0 μg/m3 (92) 116.7 μg/m3 (182) 182.0
 
Sept. 15, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 132.0 μg/m3 (88) 112.8 μg/m3 (180) 180.0
 
Sept. 15, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 145.0 μg/m3 (95) 115.5 μg/m3 (182) 182.0
 
Sept. 15, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 124.0 μg/m3 (84) 109.3 μg/m3 (178) 178.0
 
Sept. 15, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 129.0 μg/m3 (87) 110.3 μg/m3 (179) 179.0
 
Sept. 15, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 130.0 μg/m3 (88) 110.3 μg/m3 (179) 179.0
 
Sept. 15, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 128.0 μg/m3 (86) 112.1 μg/m3 (180) 180.0
 
Sept. 15, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 127.0 μg/m3 (86) 107.8 μg/m3 (178) 178.0
 
Sept. 15, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 128.0 μg/m3 (86) 108.1 μg/m3 (178) 178.0
 
Sept. 15, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 133.0 μg/m3 (89) 104.6 μg/m3 (176) 176.0
 
Sept. 15, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 137.0 μg/m3 (91) 115.5 μg/m3 (182) 182.0
 
Sept. 15, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 142.0 μg/m3 (94) 116.2 μg/m3 (182) 182.0
 
Sept. 15, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 172.0 μg/m3 (108) 127.3 μg/m3 (188) 188.0
 
Sept. 15, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 189.0 μg/m3 (117) 127.5 μg/m3 (188) 188.0
 
Sept. 15, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 195.0 μg/m3 (120) 122.4 μg/m3 (185) 185.0
 
Sept. 15, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 187.0 μg/m3 (116) 122.6 μg/m3 (185) 185.0
 
Sept. 14, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 173.0 μg/m3 (109) 114.8 μg/m3 (181) 181.0
 
Sept. 14, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 176.0 μg/m3 (110) 128.8 μg/m3 (189) 189.0
 
Sept. 14, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 162.0 μg/m3 (104) 121.7 μg/m3 (185) 185.0
 
Sept. 14, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 181.0 μg/m3 (113) 134.1 μg/m3 (191) 191.0
 
Sept. 14, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 184.0 μg/m3 (114) 145.3 μg/m3 (197) 197.0
 
Sept. 14, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 172.0 μg/m3 (108) 142.1 μg/m3 (196) 196.0
 
Sept. 14, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 171.0 μg/m3 (108) 143.6 μg/m3 (196) 196.0
 
Sept. 14, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 165.0 μg/m3 (105) 141.7 μg/m3 (195) 195.0
 
Sept. 14, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 170.0 μg/m3 (108) 144.8 μg/m3 (197) 197.0
 
Sept. 14, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 173.0 μg/m3 (109) 147.5 μg/m3 (198) 198.0
 
Sept. 14, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 161.0 μg/m3 (103) 146.2 μg/m3 (198) 198.0
 
Sept. 14, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 174.0 μg/m3 (110) 141.4 μg/m3 (195) 195.0
 
Sept. 14, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 166.0 μg/m3 (106) 141.2 μg/m3 (195) 195.0
 
Sept. 14, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 145.0 μg/m3 (95) 127.0 μg/m3 (188) 188.0
 
Sept. 14, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 165.0 μg/m3 (105) 134.8 μg/m3 (192) 192.0
 
Sept. 14, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 136.0 μg/m3 (90) 119.7 μg/m3 (184) 184.0
 
Sept. 14, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 143.0 μg/m3 (94) 123.8 μg/m3 (186) 186.0
 
Sept. 14, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 131.0 μg/m3 (88) 115.1 μg/m3 (181) 181.0
 
Sept. 14, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 126.0 μg/m3 (86) 112.1 μg/m3 (180) 180.0
 
Sept. 14, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 135.0 μg/m3 (90) 113.8 μg/m3 (181) 181.0
 
Sept. 14, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 109.0 μg/m3 (77) 88.0 μg/m3 (167) 167.0
 
Sept. 14, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 111.0 μg/m3 (78) 84.2 μg/m3 (165) 165.0