ID: 1910

AQSQID: 300490026

Site Name: Rossiter Pump House

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

Updated: Sept. 22, 2021, 11:02 a.m.

Location: Helena (Helena Valley W Central), MT

Reporting: True, Located: True

Current AQI: 12.0

Helena (Helena Valley W Central) MT, US: 46.6588, -112.0131

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 15, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
Sept. 15, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (45) 45.0
 
Sept. 15, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.1 μg/m3 (26) 26.0
 
Sept. 15, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Sept. 15, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.2 μg/m3 (14) 14.0
 
Sept. 15, 2021, 4 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
 
Sept. 15, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.4 μg/m3 (15) 15.0
 
Sept. 15, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.5 μg/m3 (11) 11.0
 
Sept. 15, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.4 μg/m3 (36) 36.0
 
Sept. 15, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.9 μg/m3 (33) 33.0
 
Sept. 14, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.5 μg/m3 (7) 7.0
 
Sept. 14, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A -2.1 μg/m3 (0) 0.0
Sept. 14, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.3 μg/m3 (2) 2.0
 
Sept. 14, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A -1.4 μg/m3 (0) 0.0
Sept. 14, 2021, 7 p.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. 14, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.1 μg/m3 (30) 30.0
 
Sept. 14, 2021, 5 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. 14, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.5 μg/m3 (44) 44.0
 
Sept. 14, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.1 μg/m3 (60) 60.0
 
Sept. 14, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.1 μg/m3 (64) 64.0
 
Sept. 14, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.4 μg/m3 (36) 36.0
 
Sept. 14, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.3 μg/m3 (60) 60.0
 
Sept. 14, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.2 μg/m3 (54) 54.0
 
Sept. 14, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.9 μg/m3 (53) 53.0
 
Sept. 14, 2021, 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. 14, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.2 μg/m3 (26) 26.0
 
Sept. 14, 2021, 7 a.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. 14, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.9 μg/m3 (38) 38.0
 
Sept. 14, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.9 μg/m3 (38) 38.0
 
Sept. 14, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
Sept. 14, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.5 μg/m3 (36) 36.0
 
Sept. 14, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.5 μg/m3 (32) 32.0
 
Sept. 14, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.1 μg/m3 (13) 13.0
 
Sept. 14, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.6 μg/m3 (16) 16.0
 
Sept. 13, 2021, 11 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. 13, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.9 μg/m3 (17) 17.0
 
Sept. 13, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.2 μg/m3 (1) 1.0
 
Sept. 13, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.9 μg/m3 (21) 21.0
 
Sept. 13, 2021, 7 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. 13, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.3 μg/m3 (27) 27.0
 
Sept. 13, 2021, 5 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. 13, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.8 μg/m3 (46) 46.0
 
Sept. 13, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.6 μg/m3 (53) 53.0
 
Sept. 13, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.6 μg/m3 (59) 59.0
 
Sept. 13, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.5 μg/m3 (44) 44.0
 
Sept. 13, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.1 μg/m3 (22) 22.0
 
Sept. 13, 2021, 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. 13, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
Sept. 13, 2021, 9 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. 13, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Sept. 13, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A -0.5 μg/m3 (0) 0.0
Sept. 13, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.2 μg/m3 (18) 18.0
 
Sept. 13, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.6 μg/m3 (20) 20.0
 
Sept. 13, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.8 μg/m3 (25) 25.0
 
Sept. 13, 2021, 3 a.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. 13, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.4 μg/m3 (31) 31.0
 
Sept. 13, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.6 μg/m3 (20) 20.0
 
Sept. 13, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.4 μg/m3 (31) 31.0
 
Sept. 12, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.8 μg/m3 (12) 12.0
 
Sept. 12, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.8 μg/m3 (12) 12.0
 
Sept. 12, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.2 μg/m3 (14) 14.0
 
Sept. 12, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
Sept. 12, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
Sept. 12, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.9 μg/m3 (38) 38.0
 
Sept. 12, 2021, 5 p.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. 12, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.9 μg/m3 (64) 64.0
 
Sept. 12, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 28.5 μg/m3 (86) 86.0
 
Sept. 12, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.4 μg/m3 (63) 63.0
 
Sept. 12, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.8 μg/m3 (50) 50.0
 
Sept. 12, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (52) 52.0
 
Sept. 12, 2021, 11 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. 12, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.5 μg/m3 (28) 28.0
 
Sept. 12, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.6 μg/m3 (57) 57.0
 
Sept. 12, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (64) 64.0
 
Sept. 12, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 21.8 μg/m3 (72) 72.0
 
Sept. 12, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.3 μg/m3 (52) 52.0
 
Sept. 12, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.2 μg/m3 (35) 35.0
 
Sept. 12, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.1 μg/m3 (47) 47.0
 
Sept. 12, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.2 μg/m3 (39) 39.0
 
Sept. 12, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.8 μg/m3 (29) 29.0
 
Sept. 12, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.4 μg/m3 (40) 40.0
 
Sept. 12, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.8 μg/m3 (55) 55.0
 
Sept. 11, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (62) 62.0
 
Sept. 11, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.3 μg/m3 (23) 23.0
 
Sept. 11, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.9 μg/m3 (33) 33.0
 
Sept. 11, 2021, 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. 11, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Sept. 11, 2021, 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. 11, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.2 μg/m3 (31) 31.0
 
Sept. 11, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.5 μg/m3 (36) 36.0
 
Sept. 11, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.5 μg/m3 (52) 52.0
 
Sept. 11, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
Sept. 11, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Sept. 11, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (53) 53.0
 
Sept. 11, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 25.7 μg/m3 (80) 80.0
 
Sept. 11, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 21.5 μg/m3 (71) 71.0
 
Sept. 11, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.9 μg/m3 (57) 57.0
 
Sept. 11, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 20.8 μg/m3 (70) 70.0
 
Sept. 11, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.6 μg/m3 (57) 57.0
 
Sept. 11, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (64) 64.0
 
Sept. 11, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.3 μg/m3 (54) 54.0
 
Sept. 11, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 19.5 μg/m3 (67) 67.0
 
Sept. 11, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 27.8 μg/m3 (85) 85.0
 
Sept. 11, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 30.7 μg/m3 (91) 91.0
 
Sept. 11, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 36.3 μg/m3 (103) 103.0
 
Sept. 11, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 42.1 μg/m3 (118) 118.0
 
Sept. 10, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 58.7 μg/m3 (153) 153.0
 
Sept. 10, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 54.7 μg/m3 (149) 149.0
 
Sept. 10, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 58.2 μg/m3 (153) 153.0
 
Sept. 10, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 58.7 μg/m3 (153) 153.0
 
Sept. 10, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 62.1 μg/m3 (155) 155.0
 
Sept. 10, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 64.9 μg/m3 (156) 156.0
 
Sept. 10, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 71.6 μg/m3 (160) 160.0
 
Sept. 10, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 72.1 μg/m3 (160) 160.0
 
Sept. 10, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 72.8 μg/m3 (160) 160.0
 
Sept. 10, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 76.5 μg/m3 (162) 162.0
 
Sept. 10, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 67.0 μg/m3 (157) 157.0
 
Sept. 10, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 76.2 μg/m3 (162) 162.0
 
Sept. 10, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 66.5 μg/m3 (157) 157.0
 
Sept. 10, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 63.2 μg/m3 (155) 155.0
 
Sept. 10, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 72.0 μg/m3 (160) 160.0
 
Sept. 10, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 61.1 μg/m3 (154) 154.0
 
Sept. 10, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 51.5 μg/m3 (141) 141.0
 
Sept. 10, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 63.7 μg/m3 (156) 156.0
 
Sept. 10, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 70.3 μg/m3 (159) 159.0
 
Sept. 10, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 62.0 μg/m3 (155) 155.0
 
Sept. 10, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 56.6 μg/m3 (152) 152.0
 
Sept. 10, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 58.6 μg/m3 (153) 153.0
 
Sept. 10, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 69.3 μg/m3 (159) 159.0
 
Sept. 10, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 60.5 μg/m3 (154) 154.0
 
Sept. 9, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 45.3 μg/m3 (126) 126.0
 
Sept. 9, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 49.8 μg/m3 (137) 137.0
 
Sept. 9, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 44.9 μg/m3 (125) 125.0
 
Sept. 9, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 48.5 μg/m3 (134) 134.0
 
Sept. 9, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 49.6 μg/m3 (136) 136.0
 
Sept. 9, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 56.1 μg/m3 (152) 152.0
 
Sept. 9, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 58.8 μg/m3 (153) 153.0
 
Sept. 9, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 67.4 μg/m3 (158) 158.0
 
Sept. 9, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 51.4 μg/m3 (141) 141.0
 
Sept. 9, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 48.0 μg/m3 (132) 132.0
 
Sept. 9, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 60.5 μg/m3 (154) 154.0
 
Sept. 9, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 49.9 μg/m3 (137) 137.0
 
Sept. 9, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 37.4 μg/m3 (106) 106.0
 
Sept. 9, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 49.2 μg/m3 (135) 135.0
 
Sept. 9, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 46.7 μg/m3 (129) 129.0
 
Sept. 9, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 53.5 μg/m3 (146) 146.0
 
Sept. 9, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 56.7 μg/m3 (152) 152.0
 
Sept. 9, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 39.9 μg/m3 (112) 112.0
 
Sept. 9, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 41.7 μg/m3 (117) 117.0
 
Sept. 9, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 41.1 μg/m3 (115) 115.0
 
Sept. 9, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 40.7 μg/m3 (114) 114.0
 
Sept. 9, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 41.3 μg/m3 (116) 116.0
 
Sept. 9, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 38.4 μg/m3 (109) 109.0
 
Sept. 9, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 25.1 μg/m3 (79) 79.0
 
Sept. 8, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 25.2 μg/m3 (79) 79.0
 
Sept. 8, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.3 μg/m3 (54) 54.0
 
Sept. 8, 2021, 9 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. 8, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.1 μg/m3 (54) 54.0
 
Sept. 8, 2021, 7 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. 8, 2021, 6 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. 8, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (45) 45.0
 
Sept. 8, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.2 μg/m3 (62) 62.0
 
Sept. 8, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (72) 72.0
 
Sept. 8, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.8 μg/m3 (63) 63.0
 
Sept. 8, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.8 μg/m3 (53) 53.0
 
Sept. 8, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.3 μg/m3 (52) 52.0
 
Sept. 8, 2021, 11 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. 8, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.8 μg/m3 (61) 61.0