ID: 1928

AQSQID: 060010009

Site Name: Oakland

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

Updated: Sept. 22, 2020, 6:40 p.m.

Location: Oakland (N Stonehurst), CA

Reporting: True, Located: True

Current AQI: 29.0

Oakland (N Stonehurst) CA, US: 37.743061, -122.169907

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 15, 2020, 5 p.m. 6.4 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 16.0 ppb (12) 0.32 ppb (4) N/A 22.0 μg/m3 (71) 71.0
 
Sept. 15, 2020, 4 p.m. 6.8 ppb (6) 1.9 ppb (2) N/A 5.0 ppb (5) N/A N/A 15.0 ppb (12) 0.33 ppb (4) N/A 23.0 μg/m3 (73) 73.0
 
Sept. 15, 2020, 3 p.m. 5.4 ppb (5) 1.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 17.0 ppb (13) 0.29 ppb (3) N/A N/A 13.0
 
Sept. 15, 2020, 2 p.m. 8.2 ppb (8) 2.2 ppb (2) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (13) 0.32 ppb (4) N/A 20.0 μg/m3 (67) 67.0
 
Sept. 15, 2020, 1 p.m. 4.0 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 20.0 ppb (15) 0.3 ppb (3) N/A 19.0 μg/m3 (65) 65.0
 
Sept. 15, 2020, noon 2.8 ppb (3) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 21.0 ppb (16) 0.28 ppb (3) N/A 21.0 μg/m3 (69) 69.0
 
Sept. 15, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (95) 95.0
 
Sept. 15, 2020, 10 a.m. 4.7 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (17) 0.51 ppb (6) N/A 51.0 μg/m3 (139) 139.0
 
Sept. 15, 2020, 9 a.m. 6.8 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (16) 0.61 ppb (7) N/A 62.0 μg/m3 (153) 153.0
 
Sept. 15, 2020, 8 a.m. 6.0 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (14) 0.71 ppb (8) N/A 69.0 μg/m3 (157) 157.0
 
Sept. 15, 2020, 7 a.m. 6.1 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 14.0 ppb (11) 0.73 ppb (8) N/A 69.0 μg/m3 (157) 157.0
 
Sept. 15, 2020, 6 a.m. 12.0 ppb (11) 2.5 ppb (2) N/A 10.0 ppb (9) N/A N/A 16.0 ppb (12) 0.74 ppb (8) N/A 68.0 μg/m3 (157) 157.0
 
Sept. 15, 2020, 5 a.m. 4.1 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (19) 0.64 ppb (7) N/A 63.0 μg/m3 (154) 154.0
 
Sept. 15, 2020, 4 a.m. 11.2 ppb (10) 0.3 ppb (0) N/A 11.0 ppb (10) N/A N/A 22.0 ppb (17) 0.91 ppb (10) N/A 93.0 μg/m3 (170) 170.0
 
Sept. 15, 2020, 3 a.m. 8.0 ppb (7) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 31.0 ppb (24) 0.96 ppb (11) N/A 100.0 μg/m3 (173) 173.0
 
Sept. 15, 2020, 2 a.m. 9.2 ppb (9) 1.3 ppb (1) N/A 8.0 ppb (7) N/A N/A 32.0 ppb (25) 0.95 ppb (11) N/A 104.0 μg/m3 (176) 176.0
 
Sept. 15, 2020, 1 a.m. 6.7 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 36.0 ppb (28) 0.92 ppb (10) N/A 96.0 μg/m3 (171) 171.0
 
Sept. 15, 2020, midnight 7.0 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (30) 0.97 ppb (11) N/A 95.0 μg/m3 (171) 171.0
 
Sept. 14, 2020, 11 p.m. 9.1 ppb (8) 1.2 ppb (1) N/A 8.0 ppb (7) N/A N/A 44.0 ppb (34) 1.06 ppb (12) N/A 105.0 μg/m3 (176) 176.0
 
Sept. 14, 2020, 10 p.m. 8.2 ppb (8) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 48.0 ppb (37) 1.04 ppb (12) N/A 107.0 μg/m3 (177) 177.0
 
Sept. 14, 2020, 9 p.m. 8.3 ppb (8) 0.6 ppb (1) N/A 8.0 ppb (7) N/A N/A 57.0 ppb (44) 1.04 ppb (12) N/A 110.0 μg/m3 (179) 179.0
 
Sept. 14, 2020, 8 p.m. 9.4 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (8) N/A N/A 64.0 ppb (49) 1.11 ppb (12) N/A 118.0 μg/m3 (183) 183.0
 
Sept. 14, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 120.0 μg/m3 (184) 184.0
 
Sept. 14, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 126.0 μg/m3 (187) 187.0
 
Sept. 14, 2020, 5 p.m. 7.6 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 39.0 ppb (30) 1.14 ppb (13) N/A 129.0 μg/m3 (189) 189.0
 
Sept. 14, 2020, 4 p.m. 6.8 ppb (6) 1.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 38.0 ppb (29) 1.16 ppb (13) N/A 138.0 μg/m3 (193) 193.0
 
Sept. 14, 2020, 3 p.m. 5.2 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (29) 1.18 ppb (13) N/A 144.0 μg/m3 (197) 197.0
 
Sept. 14, 2020, 2 p.m. 3.4 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) 1.19 ppb (13) N/A 147.0 μg/m3 (198) 198.0
 
Sept. 14, 2020, 1 p.m. 4.4 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (30) 1.21 ppb (13) N/A 152.0 μg/m3 (202) 202.0
 
Sept. 14, 2020, noon 4.1 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) 1.22 ppb (14) N/A 143.0 μg/m3 (196) 196.0
 
Sept. 14, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 141.0 μg/m3 (195) 195.0
 
Sept. 14, 2020, 10 a.m. 2.3 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) 1.24 ppb (14) N/A 153.0 μg/m3 (202) 202.0
 
Sept. 14, 2020, 9 a.m. 4.0 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) 1.26 ppb (14) N/A 148.0 μg/m3 (199) 199.0
 
Sept. 14, 2020, 8 a.m. 2.9 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) 1.26 ppb (14) N/A 148.0 μg/m3 (199) 199.0
 
Sept. 14, 2020, 7 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) 1.31 ppb (15) N/A 147.0 μg/m3 (198) 198.0
 
Sept. 14, 2020, 6 a.m. 3.2 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) 1.3 ppb (14) N/A 146.0 μg/m3 (198) 198.0
 
Sept. 14, 2020, 5 a.m. 5.5 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) 1.28 ppb (14) N/A 146.0 μg/m3 (198) 198.0
 
Sept. 14, 2020, 4 a.m. 3.8 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (30) 1.28 ppb (14) N/A 139.0 μg/m3 (194) 194.0
 
Sept. 14, 2020, 3 a.m. 4.9 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (29) 1.34 ppb (15) N/A 163.0 μg/m3 (212) 212.0
 
Sept. 14, 2020, 2 a.m. 6.3 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (30) 1.32 ppb (15) N/A 159.0 μg/m3 (208) 208.0
 
Sept. 14, 2020, 1 a.m. 9.8 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (8) N/A N/A 34.0 ppb (26) 1.27 ppb (14) N/A 146.0 μg/m3 (198) 198.0
 
Sept. 14, 2020, midnight 10.0 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (8) N/A N/A 35.0 ppb (27) 1.21 ppb (13) N/A 123.0 μg/m3 (186) 186.0
 
Sept. 13, 2020, 11 p.m. 7.8 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 44.0 ppb (34) 1.16 ppb (13) N/A 97.0 μg/m3 (172) 172.0
 
Sept. 13, 2020, 10 p.m. 6.4 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 47.0 ppb (36) 1.09 ppb (12) N/A 87.0 μg/m3 (167) 167.0
 
Sept. 13, 2020, 9 p.m. 7.1 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 45.0 ppb (35) 1.09 ppb (12) N/A 84.0 μg/m3 (165) 165.0
 
Sept. 13, 2020, 8 p.m. 5.8 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 43.0 ppb (33) 1.17 ppb (13) N/A 82.0 μg/m3 (164) 164.0
 
Sept. 13, 2020, 7 p.m. 5.7 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (28) 1.19 ppb (13) N/A 78.0 μg/m3 (162) 162.0
 
Sept. 13, 2020, 6 p.m. 6.1 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (25) 1.22 ppb (14) N/A 71.0 μg/m3 (158) 158.0
 
Sept. 13, 2020, 5 p.m. 7.7 ppb (7) 1.2 ppb (1) N/A 7.0 ppb (6) N/A N/A 30.0 ppb (23) 1.26 ppb (14) N/A 74.0 μg/m3 (160) 160.0
 
Sept. 13, 2020, 4 p.m. 6.2 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 28.0 ppb (22) 1.29 ppb (14) N/A 75.0 μg/m3 (160) 160.0
 
Sept. 13, 2020, 3 p.m. 8.0 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (6) N/A N/A 24.0 ppb (18) 1.36 ppb (15) N/A 80.0 μg/m3 (163) 163.0
 
Sept. 13, 2020, 2 p.m. 5.4 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (19) 1.38 ppb (15) N/A 82.0 μg/m3 (164) 164.0
 
Sept. 13, 2020, 1 p.m. 4.9 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) 1.35 ppb (15) N/A 78.0 μg/m3 (162) 162.0
 
Sept. 13, 2020, noon 2.9 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) 1.32 ppb (15) N/A 89.0 μg/m3 (168) 168.0
 
Sept. 13, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 91.0 μg/m3 (169) 169.0
 
Sept. 13, 2020, 10 a.m. 6.0 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (15) 1.43 ppb (16) N/A 96.0 μg/m3 (171) 171.0
 
Sept. 13, 2020, 9 a.m. 4.0 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 20.0 ppb (15) 1.4 ppb (16) N/A 98.0 μg/m3 (172) 172.0
 
Sept. 13, 2020, 8 a.m. 4.9 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (15) 1.45 ppb (16) N/A 100.0 μg/m3 (173) 173.0
 
Sept. 13, 2020, 7 a.m. 6.3 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (13) 1.38 ppb (15) N/A 90.0 μg/m3 (168) 168.0
 
Sept. 13, 2020, 6 a.m. 9.4 ppb (9) 2.5 ppb (2) N/A 7.0 ppb (6) N/A N/A 16.0 ppb (12) 1.37 ppb (15) N/A 84.0 μg/m3 (165) 165.0
 
Sept. 13, 2020, 5 a.m. 10.9 ppb (10) 0.4 ppb (0) N/A 11.0 ppb (10) N/A N/A 17.0 ppb (13) 1.35 ppb (15) N/A 87.0 μg/m3 (167) 167.0
 
Sept. 13, 2020, 4 a.m. 12.1 ppb (11) 0.3 ppb (0) N/A 12.0 ppb (11) N/A N/A 15.0 ppb (12) 1.36 ppb (15) N/A 89.0 μg/m3 (168) 168.0
 
Sept. 13, 2020, 3 a.m. 15.1 ppb (14) 0.2 ppb (0) N/A 15.0 ppb (14) N/A N/A 19.0 ppb (15) 1.38 ppb (15) N/A 95.0 μg/m3 (171) 171.0
 
Sept. 13, 2020, 2 a.m. 16.0 ppb (15) 1.9 ppb (2) N/A 14.0 ppb (13) N/A N/A 26.0 ppb (20) 1.37 ppb (15) N/A 88.0 μg/m3 (167) 167.0
 
Sept. 13, 2020, 1 a.m. 12.0 ppb (11) 0.4 ppb (0) N/A 12.0 ppb (11) N/A N/A 33.0 ppb (25) 1.33 ppb (15) N/A 93.0 μg/m3 (170) 170.0
 
Sept. 13, 2020, midnight 12.9 ppb (12) 0.8 ppb (1) N/A 12.0 ppb (11) N/A N/A 43.0 ppb (33) 1.24 ppb (14) N/A 92.0 μg/m3 (169) 169.0
 
Sept. 12, 2020, 11 p.m. 15.6 ppb (14) 1.0 ppb (1) N/A 15.0 ppb (14) N/A N/A 49.0 ppb (38) 1.18 ppb (13) N/A 85.0 μg/m3 (166) 166.0
 
Sept. 12, 2020, 10 p.m. 14.6 ppb (14) 0.9 ppb (1) N/A 14.0 ppb (13) N/A N/A 66.0 ppb (51) 1.25 ppb (14) N/A 100.0 μg/m3 (173) 173.0
 
Sept. 12, 2020, 9 p.m. 14.6 ppb (14) 0.9 ppb (1) N/A 14.0 ppb (13) N/A N/A 60.0 ppb (46) 1.18 ppb (13) N/A 102.0 μg/m3 (174) 174.0
 
Sept. 12, 2020, 8 p.m. 25.5 ppb (24) 3.5 ppb (3) N/A 22.0 ppb (20) N/A N/A 35.0 ppb (27) 1.3 ppb (14) N/A 113.0 μg/m3 (180) 180.0
 
Sept. 12, 2020, 7 p.m. 19.5 ppb (18) 2.8 ppb (3) N/A 17.0 ppb (16) N/A N/A 31.0 ppb (24) 1.32 ppb (15) N/A 115.0 μg/m3 (181) 181.0
 
Sept. 12, 2020, 6 p.m. 19.9 ppb (18) 4.4 ppb (4) N/A 16.0 ppb (15) N/A N/A 20.0 ppb (15) 1.3 ppb (14) N/A 110.0 μg/m3 (179) 179.0
 
Sept. 12, 2020, 5 p.m. 29.6 ppb (27) 9.6 ppb (9) N/A 20.0 ppb (19) N/A N/A 8.0 ppb (6) 1.4 ppb (16) N/A 115.0 μg/m3 (181) 181.0
 
Sept. 12, 2020, 4 p.m. 25.9 ppb (24) 9.1 ppb (8) N/A 17.0 ppb (16) N/A N/A 6.0 ppb (5) 1.39 ppb (15) N/A 114.0 μg/m3 (181) 181.0
 
Sept. 12, 2020, 3 p.m. 24.2 ppb (22) 10.8 ppb (10) N/A 13.0 ppb (12) N/A N/A 2.0 ppb (2) 1.53 ppb (17) N/A 100.0 μg/m3 (173) 173.0
 
Sept. 12, 2020, 2 p.m. 22.8 ppb (21) 8.8 ppb (8) N/A 14.0 ppb (13) N/A N/A 1.0 ppb (1) 1.51 ppb (17) N/A 96.0 μg/m3 (171) 171.0
 
Sept. 12, 2020, 1 p.m. 20.4 ppb (19) 5.9 ppb (5) N/A 15.0 ppb (14) N/A N/A 1.0 ppb (1) 1.33 ppb (15) N/A 107.0 μg/m3 (177) 177.0
 
Sept. 12, 2020, noon 14.5 ppb (13) 2.2 ppb (2) N/A 12.0 ppb (11) N/A N/A 2.0 ppb (2) 1.31 ppb (15) N/A 102.0 μg/m3 (174) 174.0
 
Sept. 12, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 109.0 μg/m3 (178) 178.0
 
Sept. 12, 2020, 10 a.m. 14.0 ppb (13) 3.3 ppb (3) N/A 11.0 ppb (10) N/A N/A 7.0 ppb (5) 1.32 ppb (15) N/A 115.0 μg/m3 (181) 181.0
 
Sept. 12, 2020, 9 a.m. 14.7 ppb (14) 3.4 ppb (3) N/A 11.0 ppb (10) N/A N/A 8.0 ppb (6) 1.35 ppb (15) N/A 120.0 μg/m3 (184) 184.0
 
Sept. 12, 2020, 8 a.m. 15.5 ppb (14) 0.4 ppb (0) N/A 15.0 ppb (14) N/A N/A 7.0 ppb (5) 1.43 ppb (16) N/A 122.0 μg/m3 (185) 185.0
 
Sept. 12, 2020, 7 a.m. 20.0 ppb (19) 1.6 ppb (1) N/A 18.0 ppb (17) N/A N/A 5.0 ppb (4) 1.55 ppb (17) N/A 130.0 μg/m3 (189) 189.0
 
Sept. 12, 2020, 6 a.m. 25.1 ppb (23) 3.7 ppb (3) N/A 21.0 ppb (19) N/A N/A 1.0 ppb (1) 1.53 ppb (17) N/A 127.0 μg/m3 (188) 188.0
 
Sept. 12, 2020, 5 a.m. 28.4 ppb (26) 3.7 ppb (3) N/A 25.0 ppb (23) N/A N/A 3.0 ppb (2) 1.54 ppb (17) N/A 127.0 μg/m3 (188) 188.0
 
Sept. 12, 2020, 4 a.m. 24.7 ppb (23) 1.2 ppb (1) N/A 24.0 ppb (22) N/A N/A 9.0 ppb (7) 1.44 ppb (16) N/A 132.0 μg/m3 (190) 190.0
 
Sept. 12, 2020, 3 a.m. 20.9 ppb (19) 0.3 ppb (0) N/A 21.0 ppb (19) N/A N/A 14.0 ppb (11) 1.39 ppb (15) N/A 128.0 μg/m3 (188) 188.0
 
Sept. 12, 2020, 2 a.m. 21.4 ppb (20) 3.6 ppb (3) N/A 18.0 ppb (17) N/A N/A 21.0 ppb (16) 1.26 ppb (14) N/A 123.0 μg/m3 (186) 186.0
 
Sept. 12, 2020, 1 a.m. 16.4 ppb (15) 0.7 ppb (1) N/A 16.0 ppb (15) N/A N/A 27.0 ppb (21) 1.17 ppb (13) N/A 119.0 μg/m3 (183) 183.0
 
Sept. 12, 2020, midnight 16.1 ppb (15) 0.9 ppb (1) N/A 15.0 ppb (14) N/A N/A 32.0 ppb (25) 1.19 ppb (13) N/A 127.0 μg/m3 (188) 188.0
 
Sept. 11, 2020, 11 p.m. 21.4 ppb (20) 1.1 ppb (1) N/A 20.0 ppb (19) N/A N/A 40.0 ppb (31) 1.21 ppb (13) N/A 143.0 μg/m3 (196) 196.0
 
Sept. 11, 2020, 10 p.m. 20.3 ppb (19) 1.4 ppb (1) N/A 19.0 ppb (18) N/A N/A 46.0 ppb (35) 1.25 ppb (14) N/A 158.0 μg/m3 (208) 208.0
 
Sept. 11, 2020, 9 p.m. 28.4 ppb (26) 2.4 ppb (2) N/A 26.0 ppb (24) N/A N/A 38.0 ppb (29) 1.5 ppb (17) N/A 184.0 μg/m3 (234) 234.0
 
Sept. 11, 2020, 8 p.m. 28.5 ppb (26) 4.0 ppb (4) N/A 25.0 ppb (23) N/A N/A 29.0 ppb (22) 1.53 ppb (17) N/A 192.0 μg/m3 (242) 242.0
 
Sept. 11, 2020, 7 p.m. 25.1 ppb (23) 4.5 ppb (4) N/A 21.0 ppb (19) N/A N/A 22.0 ppb (17) 1.52 ppb (17) N/A 192.0 μg/m3 (242) 242.0
 
Sept. 11, 2020, 6 p.m. 29.5 ppb (27) 7.1 ppb (7) N/A 22.0 ppb (20) N/A N/A 15.0 ppb (12) 1.56 ppb (17) N/A 198.0 μg/m3 (248) 248.0
 
Sept. 11, 2020, 5 p.m. 21.4 ppb (20) 5.0 ppb (5) N/A 17.0 ppb (16) N/A N/A 12.0 ppb (9) 1.58 ppb (18) N/A 204.0 μg/m3 (254) 254.0
 
Sept. 11, 2020, 4 p.m. 24.9 ppb (23) 10.1 ppb (9) N/A 15.0 ppb (14) N/A N/A 6.0 ppb (5) 1.73 ppb (19) N/A 205.0 μg/m3 (254) 254.0
 
Sept. 11, 2020, 3 p.m. 28.2 ppb (26) 15.5 ppb (14) N/A 13.0 ppb (12) N/A N/A 1.0 ppb (1) 1.88 ppb (21) N/A 198.0 μg/m3 (248) 248.0
 
Sept. 11, 2020, 2 p.m. 23.1 ppb (21) 12.1 ppb (11) N/A 11.0 ppb (10) N/A N/A 0.0 ppb (0) 1.74 ppb (19) N/A 204.0 μg/m3 (254) 254.0
 
Sept. 11, 2020, 1 p.m. 17.3 ppb (16) 7.0 ppb (6) N/A 10.0 ppb (9) N/A N/A 1.0 ppb (1) 1.65 ppb (18) N/A 197.0 μg/m3 (246) 246.0
 
Sept. 11, 2020, noon 11.9 ppb (11) 3.6 ppb (3) N/A 8.0 ppb (7) N/A N/A 2.0 ppb (2) 1.57 ppb (17) N/A 194.0 μg/m3 (244) 244.0
 
Sept. 11, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 197.0 μg/m3 (246) 246.0
 
Sept. 11, 2020, 10 a.m. 11.0 ppb (10) 1.4 ppb (1) N/A 10.0 ppb (9) N/A N/A 2.0 ppb (2) 1.51 ppb (17) N/A 191.0 μg/m3 (240) 240.0
 
Sept. 11, 2020, 9 a.m. 16.0 ppb (15) 4.0 ppb (4) N/A 12.0 ppb (11) N/A N/A 0.0 ppb (0) 1.55 ppb (17) N/A 180.0 μg/m3 (230) 230.0
 
Sept. 11, 2020, 8 a.m. 19.8 ppb (18) 6.5 ppb (6) N/A 13.0 ppb (12) N/A N/A 0.0 ppb (0) 1.58 ppb (18) N/A 175.0 μg/m3 (224) 224.0
 
Sept. 11, 2020, 7 a.m. 18.9 ppb (18) 4.5 ppb (4) N/A 14.0 ppb (13) N/A N/A 0.0 ppb (0) 1.57 ppb (17) N/A 174.0 μg/m3 (224) 224.0
 
Sept. 11, 2020, 6 a.m. 25.7 ppb (24) 8.5 ppb (8) N/A 17.0 ppb (16) N/A N/A 0.0 ppb (0) 1.68 ppb (19) N/A 174.0 μg/m3 (224) 224.0
 
Sept. 11, 2020, 5 a.m. 27.7 ppb (26) 7.8 ppb (7) N/A 20.0 ppb (19) N/A N/A 1.0 ppb (1) 1.72 ppb (19) N/A 178.0 μg/m3 (228) 228.0
 
Sept. 11, 2020, 4 a.m. 17.8 ppb (16) 1.0 ppb (1) N/A 17.0 ppb (16) N/A N/A 11.0 ppb (8) 1.55 ppb (17) N/A 184.0 μg/m3 (234) 234.0
 
Sept. 11, 2020, 3 a.m. 28.0 ppb (26) 4.9 ppb (5) N/A 23.0 ppb (21) N/A N/A 7.0 ppb (5) 1.56 ppb (17) N/A 189.0 μg/m3 (238) 238.0
 
Sept. 11, 2020, 2 a.m. 22.6 ppb (21) 0.6 ppb (1) N/A 22.0 ppb (20) N/A N/A 11.0 ppb (8) 1.55 ppb (17) N/A 196.0 μg/m3 (246) 246.0
 
Sept. 11, 2020, 1 a.m. 19.5 ppb (18) 0.9 ppb (1) N/A 19.0 ppb (18) N/A N/A 16.0 ppb (12) 1.4 ppb (16) N/A 181.0 μg/m3 (230) 230.0
 
Sept. 11, 2020, midnight 20.7 ppb (19) 1.6 ppb (1) N/A 19.0 ppb (18) N/A N/A 15.0 ppb (12) 1.2 ppb (13) N/A 154.0 μg/m3 (204) 204.0
 
Sept. 10, 2020, 11 p.m. 20.0 ppb (19) 1.4 ppb (1) N/A 19.0 ppb (18) N/A N/A 14.0 ppb (11) 1.1 ppb (12) N/A 131.0 μg/m3 (190) 190.0
 
Sept. 10, 2020, 10 p.m. 19.0 ppb (18) 0.9 ppb (1) N/A 18.0 ppb (17) N/A N/A 14.0 ppb (11) 1.06 ppb (12) N/A 127.0 μg/m3 (188) 188.0
 
Sept. 10, 2020, 9 p.m. 21.4 ppb (20) 1.5 ppb (1) N/A 20.0 ppb (19) N/A N/A 12.0 ppb (9) 1.0 ppb (11) N/A 114.0 μg/m3 (181) 181.0
 
Sept. 10, 2020, 8 p.m. 18.1 ppb (17) 2.5 ppb (2) N/A 16.0 ppb (15) N/A N/A 11.0 ppb (8) 0.88 ppb (10) N/A 85.0 μg/m3 (166) 166.0
 
Sept. 10, 2020, 7 p.m. 14.7 ppb (14) 0.8 ppb (1) N/A 14.0 ppb (13) N/A N/A 13.0 ppb (10) 0.83 ppb (9) N/A 89.0 μg/m3 (168) 168.0
 
Sept. 10, 2020, 6 p.m. 11.4 ppb (11) 0.6 ppb (1) N/A 11.0 ppb (10) N/A N/A 17.0 ppb (13) 0.79 ppb (9) N/A 93.0 μg/m3 (170) 170.0
 
Sept. 10, 2020, 5 p.m. 7.7 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 19.0 ppb (15) 0.73 ppb (8) N/A 86.0 μg/m3 (166) 166.0
 
Sept. 10, 2020, 4 p.m. 9.4 ppb (9) 1.1 ppb (1) N/A 8.0 ppb (7) N/A N/A 17.0 ppb (13) 0.71 ppb (8) N/A 84.0 μg/m3 (165) 165.0
 
Sept. 10, 2020, 3 p.m. 9.3 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A 12.0 ppb (9) 0.58 ppb (6) N/A 49.0 μg/m3 (134) 134.0
 
Sept. 10, 2020, 2 p.m. 12.4 ppb (11) 1.7 ppb (2) N/A 11.0 ppb (10) N/A N/A 10.0 ppb (8) 0.63 ppb (7) N/A 56.0 μg/m3 (150) 150.0
 
Sept. 10, 2020, 1 p.m. 10.3 ppb (10) 1.1 ppb (1) N/A 9.0 ppb (8) N/A N/A 12.0 ppb (9) 0.63 ppb (7) N/A 52.0 μg/m3 (141) 141.0
 
Sept. 10, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 47.0 μg/m3 (129) 129.0
 
Sept. 10, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 46.0 μg/m3 (126) 126.0
 
Sept. 10, 2020, 10 a.m. 4.1 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 18.0 ppb (14) 0.5 ppb (6) N/A 49.0 μg/m3 (134) 134.0
 
Sept. 10, 2020, 9 a.m. 6.0 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (17) 0.49 ppb (5) N/A 59.0 μg/m3 (152) 152.0
 
Sept. 10, 2020, 8 a.m. 2.6 ppb (2) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) 0.5 ppb (6) N/A 56.0 μg/m3 (150) 150.0
 
Sept. 10, 2020, 7 a.m. 3.5 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) 0.54 ppb (6) N/A 53.0 μg/m3 (144) 144.0
 
Sept. 10, 2020, 6 a.m. 3.6 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (17) 0.48 ppb (5) N/A 48.0 μg/m3 (131) 131.0
 
Sept. 10, 2020, 5 a.m. 6.7 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 20.0 ppb (15) 0.53 ppb (6) N/A 46.0 μg/m3 (126) 126.0
 
Sept. 10, 2020, 4 a.m. 6.1 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 20.0 ppb (15) 0.53 ppb (6) N/A 43.0 μg/m3 (119) 119.0
 
Sept. 10, 2020, 3 a.m. 6.4 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (16) 0.55 ppb (6) N/A 40.0 μg/m3 (111) 111.0
 
Sept. 10, 2020, 2 a.m. 9.5 ppb (9) 0.9 ppb (1) N/A 9.0 ppb (8) N/A N/A 17.0 ppb (13) 0.58 ppb (6) N/A 43.0 μg/m3 (119) 119.0
 
Sept. 10, 2020, 1 a.m. 11.2 ppb (10) 0.8 ppb (1) N/A 10.0 ppb (9) N/A N/A 16.0 ppb (12) 0.65 ppb (7) N/A 40.0 μg/m3 (111) 111.0
 
Sept. 10, 2020, midnight 13.1 ppb (12) 0.8 ppb (1) N/A 12.0 ppb (11) N/A N/A 14.0 ppb (11) 0.54 ppb (6) N/A 30.0 μg/m3 (88) 88.0
 
Sept. 9, 2020, 11 p.m. 10.4 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A 16.0 ppb (12) 0.47 ppb (5) N/A 29.0 μg/m3 (86) 86.0
 
Sept. 9, 2020, 10 p.m. 10.4 ppb (10) 1.1 ppb (1) N/A 9.0 ppb (8) N/A N/A 18.0 ppb (14) 0.46 ppb (5) N/A 28.0 μg/m3 (84) 84.0
 
Sept. 9, 2020, 9 p.m. 5.9 ppb (5) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (17) 0.38 ppb (4) N/A 31.0 μg/m3 (90) 90.0
 
Sept. 9, 2020, 8 p.m. 7.5 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 18.0 ppb (14) 0.37 ppb (4) N/A 25.0 μg/m3 (78) 78.0
 
Sept. 9, 2020, 7 p.m. 12.4 ppb (11) 1.9 ppb (2) N/A 11.0 ppb (10) N/A N/A 9.0 ppb (7) 0.4 ppb (4) N/A 33.0 μg/m3 (95) 95.0
 
Sept. 9, 2020, 6 p.m. 18.7 ppb (17) 3.8 ppb (4) N/A 15.0 ppb (14) N/A N/A 2.0 ppb (2) 0.48 ppb (5) N/A 33.0 μg/m3 (95) 95.0
 
Sept. 9, 2020, 5 p.m. 23.3 ppb (22) 5.1 ppb (5) N/A 18.0 ppb (17) N/A N/A 1.0 ppb (1) 0.53 ppb (6) N/A 39.0 μg/m3 (109) 109.0
 
Sept. 9, 2020, 4 p.m. 24.6 ppb (23) 4.2 ppb (4) N/A 20.0 ppb (19) N/A N/A 0.0 ppb (0) 0.52 ppb (6) N/A 36.0 μg/m3 (101) 101.0
 
Sept. 9, 2020, 3 p.m. 28.3 ppb (26) 7.5 ppb (7) N/A 21.0 ppb (19) N/A N/A 1.0 ppb (1) 0.47 ppb (5) N/A 37.0 μg/m3 (104) 104.0
 
Sept. 9, 2020, 2 p.m. 14.3 ppb (13) 1.0 ppb (1) N/A 13.0 ppb (12) N/A N/A 7.0 ppb (5) 0.39 ppb (4) N/A 32.0 μg/m3 (93) 93.0
 
Sept. 9, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (84) 84.0
 
Sept. 9, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (80) 80.0
 
Sept. 9, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (67) 67.0
 
Sept. 9, 2020, 10 a.m. 7.2 ppb (7) 0.1 ppb (0) N/A 7.0 ppb (6) N/A N/A 11.0 ppb (8) 0.22 ppb (2) N/A 15.0 μg/m3 (56) 56.0
 
Sept. 9, 2020, 9 a.m. 8.0 ppb (7) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 10.0 ppb (8) 0.23 ppb (3) N/A 16.0 μg/m3 (59) 59.0
 
Sept. 9, 2020, 8 a.m. 11.0 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A 7.0 ppb (5) 0.29 ppb (3) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 9, 2020, 7 a.m. 9.7 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (8) N/A N/A 8.0 ppb (6) 0.24 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 9, 2020, 6 a.m. 6.9 ppb (6) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 12.0 ppb (9) 0.23 ppb (3) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 9, 2020, 5 a.m. 5.2 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 14.0 ppb (11) 0.19 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 9, 2020, 4 a.m. 6.9 ppb (6) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 15.0 ppb (12) 0.22 ppb (2) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 9, 2020, 3 a.m. 10.9 ppb (10) 0.7 ppb (1) N/A 10.0 ppb (9) N/A N/A 12.0 ppb (9) 0.23 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
Sept. 9, 2020, 2 a.m. 15.3 ppb (14) 1.1 ppb (1) N/A 14.0 ppb (13) N/A N/A 11.0 ppb (8) 0.31 ppb (3) N/A 15.0 μg/m3 (56) 56.0
 
Sept. 9, 2020, 1 a.m. 20.7 ppb (19) 2.0 ppb (2) N/A 19.0 ppb (18) N/A N/A 9.0 ppb (7) 0.34 ppb (4) N/A 17.0 μg/m3 (61) 61.0
 
Sept. 9, 2020, midnight 18.5 ppb (17) 2.4 ppb (2) N/A 16.0 ppb (15) N/A N/A 12.0 ppb (9) 0.31 ppb (3) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 8, 2020, 11 p.m. 13.2 ppb (12) 1.3 ppb (1) N/A 12.0 ppb (11) N/A N/A 17.0 ppb (13) 0.27 ppb (3) N/A 18.0 μg/m3 (63) 63.0
 
Sept. 8, 2020, 10 p.m. 23.5 ppb (22) 4.4 ppb (4) N/A 19.0 ppb (18) N/A N/A 16.0 ppb (12) 0.31 ppb (3) N/A 25.0 μg/m3 (78) 78.0
 
Sept. 8, 2020, 9 p.m. 29.4 ppb (27) 5.8 ppb (5) N/A 24.0 ppb (22) N/A N/A 9.0 ppb (7) 0.43 ppb (5) N/A 30.0 μg/m3 (88) 88.0
 
Sept. 8, 2020, 8 p.m. 31.7 ppb (29) 10.2 ppb (9) N/A 22.0 ppb (20) N/A N/A 5.0 ppb (4) 0.4 ppb (4) N/A 23.0 μg/m3 (73) 73.0
 
Sept. 8, 2020, 7 p.m. 40.5 ppb (38) 19.3 ppb (18) N/A 21.0 ppb (19) N/A N/A 2.0 ppb (2) 0.44 ppb (5) N/A 17.0 μg/m3 (61) 61.0
 
Sept. 8, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (56) 56.0