ID: 1270

AQSQID: 530710005

Site Name: Walla Walla-12th St

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

Updated: Sept. 23, 2020, 11:39 a.m.

Location: Walla Walla (W Birch St), WA

Reporting: True, Located: True

Current AQI: 44.0

Walla Walla (W Birch St) WA, US: 46.0588, -118.3514

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (44) 44.0
 
Sept. 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.8 μg/m3 (45) 45.0
 
Sept. 23, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.7 μg/m3 (49) 49.0
 
Sept. 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.9 μg/m3 (52) 52.0
 
Sept. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (51) 51.0
 
Sept. 23, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.3 μg/m3 (51) 51.0
 
Sept. 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.3 μg/m3 (51) 51.0
 
Sept. 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.2 μg/m3 (53) 53.0
 
Sept. 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (51) 51.0
 
Sept. 23, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.8 μg/m3 (49) 49.0
 
Sept. 22, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (51) 51.0
 
Sept. 22, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.1 μg/m3 (46) 46.0
 
Sept. 22, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (41) 41.0
 
Sept. 22, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.6 μg/m3 (40) 40.0
 
Sept. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.8 μg/m3 (32) 32.0
 
Sept. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.1 μg/m3 (38) 38.0
 
Sept. 22, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (41) 41.0
 
Sept. 22, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 22, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (44) 44.0
 
Sept. 22, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.2 μg/m3 (47) 47.0
 
Sept. 22, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (51) 51.0
 
Sept. 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.2 μg/m3 (50) 50.0
 
Sept. 22, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 22, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.2 μg/m3 (42) 42.0
 
Sept. 22, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (43) 43.0
 
Sept. 22, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.2 μg/m3 (42) 42.0
 
Sept. 22, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.1 μg/m3 (42) 42.0
 
Sept. 22, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (41) 41.0
 
Sept. 22, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.6 μg/m3 (40) 40.0
 
Sept. 22, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (40) 40.0
 
Sept. 22, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.3 μg/m3 (43) 43.0
 
Sept. 22, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.8 μg/m3 (37) 37.0
 
Sept. 22, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.8 μg/m3 (37) 37.0
 
Sept. 21, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 21, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (40) 40.0
 
Sept. 21, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.3 μg/m3 (43) 43.0
 
Sept. 21, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 21, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.2 μg/m3 (47) 47.0
 
Sept. 21, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.6 μg/m3 (48) 48.0
 
Sept. 21, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.9 μg/m3 (50) 50.0
 
Sept. 21, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.2 μg/m3 (50) 50.0
 
Sept. 21, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.5 μg/m3 (48) 48.0
 
Sept. 21, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.9 μg/m3 (56) 56.0
 
Sept. 21, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.4 μg/m3 (48) 48.0
 
Sept. 21, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.5 μg/m3 (40) 40.0
 
Sept. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (40) 40.0
 
Sept. 21, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.2 μg/m3 (42) 42.0
 
Sept. 21, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.3 μg/m3 (43) 43.0
 
Sept. 21, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (45) 45.0
 
Sept. 21, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.1 μg/m3 (46) 46.0
 
Sept. 21, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.3 μg/m3 (43) 43.0
 
Sept. 21, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (44) 44.0
 
Sept. 21, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.4 μg/m3 (48) 48.0
 
Sept. 21, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.2 μg/m3 (50) 50.0
 
Sept. 21, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (44) 44.0
 
Sept. 21, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.1 μg/m3 (38) 38.0
 
Sept. 20, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.5 μg/m3 (35) 35.0
 
Sept. 20, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.6 μg/m3 (32) 32.0
 
Sept. 20, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.8 μg/m3 (28) 28.0
 
Sept. 20, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 20, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.7 μg/m3 (24) 24.0
 
Sept. 20, 2020, 6 p.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
 
Sept. 20, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.1 μg/m3 (17) 17.0
 
Sept. 20, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.4 μg/m3 (18) 18.0
 
Sept. 20, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.7 μg/m3 (15) 15.0
 
Sept. 20, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.7 μg/m3 (15) 15.0
 
Sept. 20, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.7 μg/m3 (15) 15.0
 
Sept. 20, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.6 μg/m3 (15) 15.0
 
Sept. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.4 μg/m3 (14) 14.0
 
Sept. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.2 μg/m3 (13) 13.0
 
Sept. 20, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.5 μg/m3 (15) 15.0
 
Sept. 20, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.3 μg/m3 (22) 22.0
 
Sept. 20, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.1 μg/m3 (21) 21.0
 
Sept. 20, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.4 μg/m3 (27) 27.0
 
Sept. 20, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.4 μg/m3 (27) 27.0
 
Sept. 20, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.6 μg/m3 (40) 40.0
 
Sept. 20, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.5 μg/m3 (35) 35.0
 
Sept. 20, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 19, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.9 μg/m3 (45) 45.0
 
Sept. 19, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.3 μg/m3 (43) 43.0
 
Sept. 19, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (44) 44.0
 
Sept. 19, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.1 μg/m3 (50) 50.0
 
Sept. 19, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.7 μg/m3 (56) 56.0
 
Sept. 19, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (54) 54.0
 
Sept. 19, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.3 μg/m3 (57) 57.0
 
Sept. 19, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.3 μg/m3 (53) 53.0
 
Sept. 19, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.6 μg/m3 (53) 53.0
 
Sept. 19, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.9 μg/m3 (58) 58.0
 
Sept. 19, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.3 μg/m3 (61) 61.0
 
Sept. 19, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.6 μg/m3 (62) 62.0
 
Sept. 19, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (43) 43.0
 
Sept. 19, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.1 μg/m3 (50) 50.0
 
Sept. 19, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.7 μg/m3 (51) 51.0
 
Sept. 19, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.7 μg/m3 (51) 51.0
 
Sept. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (45) 45.0
 
Sept. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (61) 61.0
 
Sept. 19, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 19.7 μg/m3 (66) 66.0
 
Sept. 19, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 31.6 μg/m3 (92) 92.0
 
Sept. 19, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 66.8 μg/m3 (156) 156.0
 
Sept. 19, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 100.6 μg/m3 (174) 174.0
 
Sept. 19, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 99.2 μg/m3 (173) 173.0
 
Sept. 19, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 98.6 μg/m3 (173) 173.0
 
Sept. 18, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 99.8 μg/m3 (173) 173.0
 
Sept. 18, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 110.2 μg/m3 (179) 179.0
 
Sept. 18, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 122.1 μg/m3 (185) 185.0
 
Sept. 18, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 125.7 μg/m3 (187) 187.0
 
Sept. 18, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 129.6 μg/m3 (189) 189.0
 
Sept. 18, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 131.9 μg/m3 (190) 190.0
 
Sept. 18, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 130.8 μg/m3 (190) 190.0
 
Sept. 18, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 124.9 μg/m3 (187) 187.0
 
Sept. 18, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 119.5 μg/m3 (184) 184.0
 
Sept. 18, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 122.9 μg/m3 (185) 185.0
 
Sept. 18, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 126.2 μg/m3 (187) 187.0
 
Sept. 18, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 131.1 μg/m3 (190) 190.0
 
Sept. 18, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 124.6 μg/m3 (186) 186.0
 
Sept. 18, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 120.5 μg/m3 (184) 184.0
 
Sept. 18, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 121.5 μg/m3 (185) 185.0
 
Sept. 18, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 118.7 μg/m3 (183) 183.0
 
Sept. 18, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 123.9 μg/m3 (186) 186.0
 
Sept. 18, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 132.4 μg/m3 (190) 190.0
 
Sept. 18, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 136.5 μg/m3 (193) 193.0
 
Sept. 18, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 150.0 μg/m3 (200) 200.0
 
Sept. 18, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 169.0 μg/m3 (218) 218.0
 
Sept. 18, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 175.7 μg/m3 (225) 225.0
 
Sept. 18, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 179.9 μg/m3 (229) 229.0
 
Sept. 18, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 177.4 μg/m3 (227) 227.0
 
Sept. 17, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 171.2 μg/m3 (221) 221.0
 
Sept. 17, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 177.3 μg/m3 (227) 227.0
 
Sept. 17, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 183.4 μg/m3 (233) 233.0
 
Sept. 17, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 181.5 μg/m3 (231) 231.0
 
Sept. 17, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 167.2 μg/m3 (217) 217.0
 
Sept. 17, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 135.2 μg/m3 (192) 192.0
 
Sept. 17, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 124.3 μg/m3 (186) 186.0
 
Sept. 17, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 120.8 μg/m3 (184) 184.0
 
Sept. 17, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 113.0 μg/m3 (180) 180.0
 
Sept. 17, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 118.3 μg/m3 (183) 183.0
 
Sept. 17, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 122.0 μg/m3 (185) 185.0
 
Sept. 17, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 117.8 μg/m3 (183) 183.0
 
Sept. 17, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 123.1 μg/m3 (186) 186.0
 
Sept. 17, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 121.8 μg/m3 (185) 185.0
 
Sept. 17, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 129.2 μg/m3 (189) 189.0
 
Sept. 17, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 131.9 μg/m3 (190) 190.0
 
Sept. 17, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 133.7 μg/m3 (191) 191.0
 
Sept. 17, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 140.5 μg/m3 (195) 195.0
 
Sept. 17, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 144.5 μg/m3 (197) 197.0
 
Sept. 17, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 149.2 μg/m3 (199) 199.0
 
Sept. 17, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 149.5 μg/m3 (199) 199.0
 
Sept. 17, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 146.8 μg/m3 (198) 198.0
 
Sept. 17, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 145.6 μg/m3 (197) 197.0
 
Sept. 17, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 147.6 μg/m3 (198) 198.0
 
Sept. 16, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 158.3 μg/m3 (208) 208.0
 
Sept. 16, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 162.7 μg/m3 (212) 212.0
 
Sept. 16, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 167.2 μg/m3 (217) 217.0
 
Sept. 16, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 164.9 μg/m3 (214) 214.0
 
Sept. 16, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 168.4 μg/m3 (218) 218.0
 
Sept. 16, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 167.8 μg/m3 (217) 217.0
 
Sept. 16, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 154.4 μg/m3 (204) 204.0
 
Sept. 16, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 145.1 μg/m3 (197) 197.0
 
Sept. 16, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 147.4 μg/m3 (198) 198.0
 
Sept. 16, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 158.1 μg/m3 (208) 208.0
 
Sept. 16, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 163.7 μg/m3 (213) 213.0
 
Sept. 16, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 162.0 μg/m3 (212) 212.0
 
Sept. 16, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 166.3 μg/m3 (216) 216.0