ID: 2965

AQSQID: 060932001

Site Name: Yreka

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

Updated: Sept. 19, 2020, 7:38 a.m.

Location: Yreka (S Foothill Dr), CA

Reporting: True, Located: True

Current AQI: 21.0

Yreka (S Foothill Dr) CA, US: 41.72679, -122.63359

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 4.0 μg/m3 (17) 21.0
 
Sept. 19, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 2.0 μg/m3 (8) 22.0
 
Sept. 19, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 3.0 μg/m3 (12) 21.0
 
Sept. 19, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 19, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 19, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 19, 2020, midnight N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A N/A 25.0
 
Sept. 18, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 30.0 μg/m3 (88) 88.0
 
Sept. 18, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 35.0 μg/m3 (99) 99.0
 
Sept. 18, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 22.0 μg/m3 (71) 71.0
 
Sept. 18, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 13.0 μg/m3 (52) 52.0
 
Sept. 18, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 17.0 μg/m3 (61) 61.0
 
Sept. 18, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 14.0 μg/m3 (54) 54.0
 
Sept. 18, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A N/A 24.0
 
Sept. 18, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 88.0 μg/m3 (167) 167.0
 
Sept. 18, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 69.0 μg/m3 (157) 157.0
 
Sept. 18, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 30.0 μg/m3 (88) 88.0
 
Sept. 18, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 38.0 μg/m3 (106) 106.0
 
Sept. 18, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (69) 69.0
 
Sept. 18, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 18, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 14.0 μg/m3 (54) 54.0
 
Sept. 18, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 16.0 μg/m3 (59) 59.0
 
Sept. 18, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 36.0 μg/m3 (101) 101.0
 
Sept. 18, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 27.0 μg/m3 (82) 82.0
 
Sept. 18, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 79.0 μg/m3 (162) 162.0
 
Sept. 18, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 78.0 μg/m3 (162) 162.0
 
Sept. 18, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 59.0 μg/m3 (152) 152.0
 
Sept. 18, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 70.0 μg/m3 (158) 158.0
 
Sept. 18, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 89.0 μg/m3 (168) 168.0
 
Sept. 18, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 95.0 μg/m3 (171) 171.0
 
Sept. 18, 2020, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 66.0 μg/m3 (156) 156.0
 
Sept. 17, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 69.0 μg/m3 (157) 157.0
 
Sept. 17, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 70.0 μg/m3 (158) 158.0
 
Sept. 17, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 23.0 μg/m3 (73) 73.0
 
Sept. 17, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 46.0 μg/m3 (126) 126.0
 
Sept. 17, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 79.0 μg/m3 (162) 162.0
 
Sept. 17, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 99.0 μg/m3 (173) 173.0
 
Sept. 17, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 125.0 μg/m3 (187) 187.0
 
Sept. 17, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 118.0 μg/m3 (183) 183.0
 
Sept. 17, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 111.0 μg/m3 (179) 179.0
 
Sept. 17, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 113.0 μg/m3 (180) 180.0
 
Sept. 17, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 112.0 μg/m3 (180) 180.0
 
Sept. 17, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 110.0 μg/m3 (179) 179.0
 
Sept. 17, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 108.0 μg/m3 (178) 178.0
 
Sept. 17, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 100.0 μg/m3 (173) 173.0
 
Sept. 17, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 99.0 μg/m3 (173) 173.0
 
Sept. 17, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 90.0 μg/m3 (168) 168.0
 
Sept. 17, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 88.0 μg/m3 (167) 167.0
 
Sept. 17, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 94.0 μg/m3 (170) 170.0
 
Sept. 17, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 112.0 μg/m3 (180) 180.0
 
Sept. 17, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 121.0 μg/m3 (184) 184.0
 
Sept. 17, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 138.0 μg/m3 (193) 193.0
 
Sept. 17, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 152.0 μg/m3 (202) 202.0
 
Sept. 17, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 137.0 μg/m3 (193) 193.0
 
Sept. 17, 2020, midnight N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A N/A 108.0 μg/m3 (178) 178.0
 
Sept. 16, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (49) N/A N/A 50.0 μg/m3 (136) 136.0
 
Sept. 16, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (49) N/A N/A 44.0 μg/m3 (121) 121.0
 
Sept. 16, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (49) N/A N/A 30.0 μg/m3 (88) 88.0
 
Sept. 16, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) N/A N/A 31.0 μg/m3 (90) 90.0
 
Sept. 16, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A 43.0 μg/m3 (119) 119.0
 
Sept. 16, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 65.0 μg/m3 (155) 155.0
 
Sept. 16, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 95.0 μg/m3 (171) 171.0
 
Sept. 16, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 100.0 μg/m3 (173) 173.0
 
Sept. 16, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 97.0 μg/m3 (172) 172.0
 
Sept. 16, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 96.0 μg/m3 (171) 171.0
 
Sept. 16, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 94.0 μg/m3 (170) 170.0
 
Sept. 16, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 92.0 μg/m3 (169) 169.0
 
Sept. 16, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 96.0 μg/m3 (171) 171.0
 
Sept. 16, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 80.0 μg/m3 (163) 163.0
 
Sept. 16, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 66.0 μg/m3 (156) 156.0
 
Sept. 16, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 86.0 μg/m3 (166) 166.0
 
Sept. 16, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 88.0 μg/m3 (167) 167.0
 
Sept. 16, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 93.0 μg/m3 (170) 170.0
 
Sept. 16, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 125.0 μg/m3 (187) 187.0
 
Sept. 16, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 135.0 μg/m3 (192) 192.0
 
Sept. 16, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 129.0 μg/m3 (189) 189.0
 
Sept. 16, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 87.0 μg/m3 (167) 167.0
 
Sept. 16, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 88.0 μg/m3 (167) 167.0
 
Sept. 16, 2020, midnight N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 47.0 μg/m3 (129) 129.0
 
Sept. 15, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 33.0 μg/m3 (95) 95.0
 
Sept. 15, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 39.0 μg/m3 (109) 109.0
 
Sept. 15, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) N/A N/A 43.0 μg/m3 (119) 119.0
 
Sept. 15, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 45.0 μg/m3 (124) 124.0
 
Sept. 15, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 54.0 μg/m3 (146) 146.0
 
Sept. 15, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 55.0 μg/m3 (149) 149.0
 
Sept. 15, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 83.0 μg/m3 (164) 164.0
 
Sept. 15, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 93.0 μg/m3 (170) 170.0
 
Sept. 15, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 90.0 μg/m3 (168) 168.0
 
Sept. 15, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 97.0 μg/m3 (172) 172.0
 
Sept. 15, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 91.0 μg/m3 (169) 169.0
 
Sept. 15, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 107.0 μg/m3 (177) 177.0
 
Sept. 15, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 113.0 μg/m3 (180) 180.0
 
Sept. 15, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 124.0 μg/m3 (186) 186.0
 
Sept. 15, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 137.0 μg/m3 (193) 193.0
 
Sept. 15, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 147.0 μg/m3 (198) 198.0
 
Sept. 15, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 149.0 μg/m3 (199) 199.0
 
Sept. 15, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 141.0 μg/m3 (195) 195.0
 
Sept. 15, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 146.0 μg/m3 (198) 198.0
 
Sept. 15, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 179.0 μg/m3 (228) 228.0
 
Sept. 15, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 231.0 μg/m3 (280) 280.0
 
Sept. 15, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 248.0 μg/m3 (298) 298.0
 
Sept. 15, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 248.0 μg/m3 (298) 298.0
 
Sept. 15, 2020, midnight N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A N/A 191.0 μg/m3 (240) 240.0
 
Sept. 14, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) N/A N/A 130.0 μg/m3 (189) 189.0
 
Sept. 14, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (52) N/A N/A 84.0 μg/m3 (165) 165.0
 
Sept. 14, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 70.0 ppb (54) N/A N/A 83.0 μg/m3 (164) 164.0
 
Sept. 14, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (50) N/A N/A 73.0 μg/m3 (159) 159.0
 
Sept. 14, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) N/A N/A 98.0 μg/m3 (172) 172.0
 
Sept. 14, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 143.0 μg/m3 (196) 196.0
 
Sept. 14, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 180.0 μg/m3 (230) 230.0
 
Sept. 14, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 156.0 μg/m3 (206) 206.0
 
Sept. 14, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 150.0 μg/m3 (200) 200.0
 
Sept. 14, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 149.0 μg/m3 (199) 199.0
 
Sept. 14, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 165.0 μg/m3 (214) 214.0
 
Sept. 14, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 154.0 μg/m3 (204) 204.0
 
Sept. 14, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 138.0 μg/m3 (193) 193.0
 
Sept. 14, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 133.0 μg/m3 (191) 191.0
 
Sept. 14, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 108.0 μg/m3 (178) 178.0
 
Sept. 14, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 119.0 μg/m3 (183) 183.0
 
Sept. 14, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 137.0 μg/m3 (193) 193.0
 
Sept. 14, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 139.0 μg/m3 (194) 194.0
 
Sept. 14, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 161.0 μg/m3 (210) 210.0
 
Sept. 14, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 205.0 μg/m3 (254) 254.0
 
Sept. 14, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 212.0 μg/m3 (262) 262.0
 
Sept. 14, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 211.0 μg/m3 (260) 260.0
 
Sept. 14, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 235.0 μg/m3 (284) 284.0
 
Sept. 14, 2020, midnight N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 200.0 μg/m3 (250) 250.0
 
Sept. 13, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 180.0 μg/m3 (230) 230.0
 
Sept. 13, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 178.0 μg/m3 (228) 228.0
 
Sept. 13, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 196.0 μg/m3 (246) 246.0
 
Sept. 13, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 238.0 μg/m3 (288) 288.0
 
Sept. 13, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 270.0 μg/m3 (320) 320.0
 
Sept. 13, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 288.0 μg/m3 (338) 338.0
 
Sept. 13, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 300.0 μg/m3 (350) 350.0
 
Sept. 13, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 280.0 μg/m3 (330) 330.0
 
Sept. 13, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 286.0 μg/m3 (336) 336.0
 
Sept. 13, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 284.0 μg/m3 (334) 334.0
 
Sept. 13, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 281.0 μg/m3 (330) 330.0
 
Sept. 13, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 271.0 μg/m3 (320) 320.0
 
Sept. 13, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 271.0 μg/m3 (320) 320.0
 
Sept. 13, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 275.0 μg/m3 (324) 324.0
 
Sept. 13, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 271.0 μg/m3 (320) 320.0
 
Sept. 13, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 265.0 μg/m3 (314) 314.0
 
Sept. 13, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 263.0 μg/m3 (312) 312.0
 
Sept. 13, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 265.0 μg/m3 (314) 314.0
 
Sept. 13, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 262.0 μg/m3 (312) 312.0
 
Sept. 13, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 271.0 μg/m3 (320) 320.0
 
Sept. 13, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 272.0 μg/m3 (322) 322.0
 
Sept. 13, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 282.0 μg/m3 (332) 332.0
 
Sept. 13, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 265.0 μg/m3 (314) 314.0
 
Sept. 13, 2020, midnight N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 267.0 μg/m3 (316) 316.0
 
Sept. 12, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 286.0 μg/m3 (336) 336.0
 
Sept. 12, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 294.0 μg/m3 (344) 344.0
 
Sept. 12, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 373.0 μg/m3 (415) 415.0
 
Sept. 12, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 419.0 μg/m3 (446) 446.0
 
Sept. 12, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 392.0 μg/m3 (428) 428.0
 
Sept. 12, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 353.0 μg/m3 (402) 402.0
 
Sept. 12, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 332.0 μg/m3 (382) 382.0
 
Sept. 12, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 321.0 μg/m3 (370) 370.0
 
Sept. 12, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 323.0 μg/m3 (372) 372.0
 
Sept. 12, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 321.0 μg/m3 (370) 370.0
 
Sept. 12, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 319.0 μg/m3 (368) 368.0
 
Sept. 12, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 324.0 μg/m3 (374) 374.0
 
Sept. 12, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 319.0 μg/m3 (368) 368.0
 
Sept. 12, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 303.0 μg/m3 (352) 352.0
 
Sept. 12, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 301.0 μg/m3 (350) 350.0
 
Sept. 12, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 295.0 μg/m3 (344) 344.0
 
Sept. 12, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 263.0 μg/m3 (312) 312.0