AQSQID: 060010011

Site Name: Oakland West

Location: Oakland, CA

Reporting: True, Located: True

Current AQI: 42.0

Oakland CA, US: 37.8148, -122.282402

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 20, 2019, 7 a.m. 3.9 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (15) 0.36 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
July 20, 2019, 6 a.m. 4.1 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (15) 0.36 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 20, 2019, 5 a.m. 3.8 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 20.0 ppb (15) 0.36 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
July 20, 2019, 4 a.m. 3.8 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 20.0 ppb (15) 0.36 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
July 20, 2019, 3 a.m. 4.4 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 20.0 ppb (15) 0.37 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 20, 2019, 2 a.m. 4.4 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 21.0 ppb (16) 0.36 ppb (4) N/A 18.0 μg/m3 (63) 63.0
 
July 20, 2019, 1 a.m. 5.1 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 21.0 ppb (16) 0.37 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
July 20, 2019, midnight 5.8 ppb (5) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (17) 0.37 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
July 19, 2019, 11 p.m. 11.5 ppb (11) 4.9 ppb (5) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 21.0 ppb (16) 0.39 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 19, 2019, 10 p.m. 6.9 ppb (6) 2.3 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 24.0 ppb (18) 0.4 ppb (4) N/A 16.0 μg/m3 (59) 59.0
 
July 19, 2019, 9 p.m. 9.0 ppb (8) 3.1 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 26.0 ppb (20) 0.41 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
July 19, 2019, 8 p.m. 6.4 ppb (6) 1.7 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 28.0 ppb (22) 0.39 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
July 19, 2019, 7 p.m. 5.0 ppb (5) 1.4 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 28.0 ppb (22) 0.38 ppb (4) N/A 16.0 μg/m3 (59) 59.0
 
July 19, 2019, 6 p.m. 8.1 ppb (8) 2.7 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 25.0 ppb (19) 0.39 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
July 19, 2019, 5 p.m. 5.4 ppb (5) 1.8 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 20.0 ppb (15) 0.35 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 19, 2019, 4 p.m. 8.6 ppb (8) 3.2 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 17.0 ppb (13) 0.37 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
July 19, 2019, 3 p.m. 9.8 ppb (9) 2.5 ppb (2) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 13.0 ppb (10) 0.37 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
July 19, 2019, 2 p.m. 7.9 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 14.0 ppb (11) 0.35 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 19, 2019, 1 p.m. 12.0 ppb (11) 0.4 ppb (0) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 12.0 ppb (9) 0.36 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 19, 2019, noon 10.6 ppb (10) 0.0 ppb (0) N/A 11.0 ppb (10) N/A N/A 15.0 ppb (12) 0.33 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
July 19, 2019, 11 a.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
 
July 19, 2019, 10 a.m. 4.5 ppb (4) -0.1 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (18) 0.33 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
July 19, 2019, 9 a.m. 6.4 ppb (6) -0.1 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 21.0 ppb (16) 0.32 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
July 19, 2019, 8 a.m. 7.0 ppb (6) -0.1 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 21.0 ppb (16) 0.33 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 19, 2019, 7 a.m. 3.7 ppb (3) -0.1 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (18) 0.32 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
July 19, 2019, 6 a.m. 2.5 ppb (2) -0.1 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (18) 0.33 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
July 19, 2019, 5 a.m. 3.1 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) 0.33 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 19, 2019, 4 a.m. 3.4 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 19.0 ppb (15) 0.34 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 19, 2019, 3 a.m. 6.1 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (10) 0.35 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 19, 2019, 2 a.m. 4.9 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 11.0 ppb (8) 0.35 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 19, 2019, 1 a.m. 4.0 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 11.0 ppb (8) 0.38 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
July 19, 2019, midnight 3.6 ppb (3) 1.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 14.0 ppb (11) 0.39 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
July 18, 2019, 11 p.m. 4.9 ppb (5) 2.2 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 13.0 ppb (10) 0.36 ppb (4) N/A 1.0 μg/m3 (4) 10.0
 
July 18, 2019, 10 p.m. 6.4 ppb (6) 2.9 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 14.0 ppb (11) 0.36 ppb (4) N/A 0.0 μg/m3 (0) 11.0
 
July 18, 2019, 9 p.m. 5.0 ppb (5) 2.2 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 13.0 ppb (10) 0.34 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
July 18, 2019, 8 p.m. 6.3 ppb (6) 2.8 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 13.0 ppb (10) 0.34 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
July 18, 2019, 7 p.m. 5.9 ppb (5) 2.6 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 14.0 ppb (11) 0.35 ppb (4) N/A 2.0 μg/m3 (8) 11.0
 
July 18, 2019, 6 p.m. 6.3 ppb (6) 2.7 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 15.0 ppb (12) 0.35 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 18, 2019, 5 p.m. 9.6 ppb (9) 4.8 ppb (4) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 13.0 ppb (10) 0.37 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
July 18, 2019, 4 p.m. 10.8 ppb (10) 4.6 ppb (4) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 12.0 ppb (9) 0.38 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
July 18, 2019, 3 p.m. 11.3 ppb (10) 3.9 ppb (4) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 11.0 ppb (8) 0.37 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
July 18, 2019, 2 p.m. 7.6 ppb (7) 1.7 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (10) 0.36 ppb (4) N/A 1.0 μg/m3 (4) 10.0
 
July 18, 2019, 1 p.m. 6.3 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 14.0 ppb (11) 0.36 ppb (4) N/A 2.0 μg/m3 (8) 11.0
 
July 18, 2019, noon 7.0 ppb (6) 0.5 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 13.0 ppb (10) 0.34 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
July 18, 2019, 11 a.m. 8.5 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A 12.0 ppb (9) 0.32 ppb (4) N/A 2.0 μg/m3 (8) 9.0
 
July 18, 2019, 10 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
 
July 18, 2019, 9 a.m. 3.2 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 16.0 ppb (12) 0.33 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 18, 2019, 8 a.m. 5.7 ppb (5) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 14.0 ppb (11) 0.34 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 18, 2019, 7 a.m. 7.5 ppb (7) 0.1 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 12.0 ppb (9) 0.36 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
July 18, 2019, 6 a.m. 6.6 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (10) 0.35 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 18, 2019, 5 a.m. 13.3 ppb (12) 0.5 ppb (0) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 9.0 ppb (7) 0.38 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 18, 2019, 4 a.m. 16.1 ppb (15) 0.5 ppb (0) N/A 16.0 ppb (15) N/A 1.0 ppb (1) 8.0 ppb (6) 0.39 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 18, 2019, 3 a.m. 13.3 ppb (12) 0.5 ppb (0) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 15.0 ppb (12) 0.44 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
July 18, 2019, 2 a.m. 9.5 ppb (9) 1.5 ppb (1) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 21.0 ppb (16) 0.44 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
July 18, 2019, 1 a.m. 10.6 ppb (10) 2.9 ppb (3) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 22.0 ppb (17) 0.44 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
July 18, 2019, midnight 16.1 ppb (15) 5.8 ppb (5) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 20.0 ppb (15) 0.46 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
July 17, 2019, 11 p.m. 10.4 ppb (10) 3.6 ppb (3) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 24.0 ppb (18) 0.43 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
July 17, 2019, 10 p.m. 12.3 ppb (11) 4.3 ppb (4) N/A 8.0 ppb (7) N/A 5.0 ppb (7) 24.0 ppb (18) 0.43 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
July 17, 2019, 9 p.m. 10.6 ppb (10) 3.3 ppb (3) N/A 7.0 ppb (6) N/A 5.0 ppb (7) 26.0 ppb (20) 0.41 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
July 17, 2019, 8 p.m. 13.8 ppb (13) 5.0 ppb (5) N/A 9.0 ppb (8) N/A 8.0 ppb (11) 23.0 ppb (18) 0.43 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
July 17, 2019, 7 p.m. 16.1 ppb (15) 5.9 ppb (5) N/A 10.0 ppb (9) N/A 5.0 ppb (7) 22.0 ppb (17) 0.42 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
July 17, 2019, 6 p.m. 18.7 ppb (17) 7.7 ppb (7) N/A 11.0 ppb (10) N/A 2.0 ppb (3) 19.0 ppb (15) 0.41 ppb (5) N/A N/A 17.0
 
July 17, 2019, 5 p.m. 11.0 ppb (10) 3.9 ppb (4) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 20.0 ppb (15) 0.41 ppb (5) N/A 13.0 μg/m3 (52) 52.0
 
July 17, 2019, 4 p.m. 11.2 ppb (10) 4.2 ppb (4) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 17.0 ppb (13) 0.4 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 17, 2019, 3 p.m. 8.2 ppb (8) 2.6 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 17.0 ppb (13) 0.39 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
July 17, 2019, 2 p.m. 19.5 ppb (18) 5.7 ppb (5) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 11.0 ppb (8) 0.4 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
July 17, 2019, 1 p.m. 15.7 ppb (15) 1.7 ppb (2) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 11.0 ppb (8) 0.37 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 17, 2019, noon 8.4 ppb (8) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 16.0 ppb (12) 0.33 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
July 17, 2019, 11 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
 
July 17, 2019, 10 a.m. 5.1 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 20.0 ppb (15) 0.33 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
July 17, 2019, 9 a.m. 1.9 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (17) 0.32 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 17, 2019, 8 a.m. 4.3 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 20.0 ppb (15) 0.33 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
July 17, 2019, 7 a.m. 4.3 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 19.0 ppb (15) 0.33 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 17, 2019, 6 a.m. 2.9 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) 0.33 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 17, 2019, 5 a.m. 8.9 ppb (8) 0.1 ppb (0) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 14.0 ppb (11) 0.36 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 17, 2019, 4 a.m. 9.3 ppb (9) 0.4 ppb (0) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 15.0 ppb (12) 0.37 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 17, 2019, 3 a.m. 17.5 ppb (16) 2.8 ppb (3) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 10.0 ppb (8) 0.39 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 17, 2019, 2 a.m. 16.8 ppb (16) 4.2 ppb (4) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 13.0 ppb (10) 0.38 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
July 17, 2019, 1 a.m. 9.7 ppb (9) 3.3 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 18.0 ppb (14) 0.37 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
July 17, 2019, midnight 11.5 ppb (11) 4.6 ppb (4) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 18.0 ppb (14) 0.39 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
July 16, 2019, 11 p.m. 11.6 ppb (11) 4.4 ppb (4) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 19.0 ppb (15) 0.37 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 16, 2019, 10 p.m. 12.4 ppb (11) 4.7 ppb (4) N/A 8.0 ppb (7) N/A 2.0 ppb (3) 20.0 ppb (15) 0.4 ppb (4) N/A 14.0 μg/m3 (54) 54.0
 
July 16, 2019, 9 p.m. 16.2 ppb (15) 6.9 ppb (6) N/A 9.0 ppb (8) N/A 3.0 ppb (4) 17.0 ppb (13) 0.4 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 16, 2019, 8 p.m. 12.0 ppb (11) 5.3 ppb (5) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 16.0 ppb (12) 0.37 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
July 16, 2019, 7 p.m. 12.9 ppb (12) 5.9 ppb (5) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 14.0 ppb (11) 0.37 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
July 16, 2019, 6 p.m. 12.2 ppb (11) 6.2 ppb (6) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 12.0 ppb (9) 0.36 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
July 16, 2019, 5 p.m. 11.6 ppb (11) 6.2 ppb (6) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 11.0 ppb (8) 0.36 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 16, 2019, 4 p.m. 15.8 ppb (15) 8.8 ppb (8) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 9.0 ppb (7) 0.39 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
July 16, 2019, 3 p.m. 10.3 ppb (10) 4.1 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 9.0 ppb (7) 0.36 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
July 16, 2019, 2 p.m. 8.4 ppb (8) 2.1 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 8.0 ppb (6) 0.34 ppb (4) N/A 2.0 μg/m3 (8) 8.0
 
July 16, 2019, 1 p.m. 9.1 ppb (8) 2.1 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 7.0 ppb (5) 0.33 ppb (4) N/A 2.0 μg/m3 (8) 8.0
 
July 16, 2019, noon 8.9 ppb (8) 1.8 ppb (2) N/A 7.0 ppb (6) N/A N/A 8.0 ppb (6) 0.32 ppb (4) N/A 2.0 μg/m3 (8) 8.0
 
July 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
July 16, 2019, 10 a.m. 6.8 ppb (6) 0.2 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 9.0 ppb (7) 0.32 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
July 16, 2019, 9 a.m. 5.2 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 10.0 ppb (8) 0.32 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
July 16, 2019, 8 a.m. 2.8 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 13.0 ppb (10) 0.33 ppb (4) N/A 2.0 μg/m3 (8) 10.0
 
July 16, 2019, 7 a.m. 5.5 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 11.0 ppb (8) 0.34 ppb (4) N/A 1.0 μg/m3 (4) 8.0
 
July 16, 2019, 6 a.m. 5.1 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 12.0 ppb (9) 0.34 ppb (4) N/A 2.0 μg/m3 (8) 9.0
 
July 16, 2019, 5 a.m. 11.4 ppb (11) 0.8 ppb (1) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 8.0 ppb (6) 0.37 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
July 16, 2019, 4 a.m. 13.3 ppb (12) 1.6 ppb (1) N/A 12.0 ppb (11) N/A 2.0 ppb (3) 7.0 ppb (5) 0.39 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 16, 2019, 3 a.m. 8.9 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 11.0 ppb (8) 0.38 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 16, 2019, 2 a.m. 6.4 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 14.0 ppb (11) 0.36 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
July 16, 2019, 1 a.m. 7.2 ppb (7) 2.3 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 16.0 ppb (12) 0.36 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
July 16, 2019, midnight 9.2 ppb (9) 3.4 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 17.0 ppb (13) 0.38 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
July 15, 2019, 11 p.m. 18.4 ppb (17) 8.5 ppb (8) N/A 10.0 ppb (9) N/A 2.0 ppb (3) 15.0 ppb (12) 0.4 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
July 15, 2019, 10 p.m. 15.4 ppb (14) 5.9 ppb (5) N/A 10.0 ppb (9) N/A 5.0 ppb (7) 19.0 ppb (15) 0.39 ppb (4) N/A 14.0 μg/m3 (54) 54.0
 
July 15, 2019, 9 p.m. 13.1 ppb (12) 4.7 ppb (4) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 21.0 ppb (16) 0.38 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 15, 2019, 8 p.m. 8.9 ppb (8) 3.1 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 21.0 ppb (16) 0.38 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
July 15, 2019, 7 p.m. 11.8 ppb (11) 4.4 ppb (4) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 20.0 ppb (15) 0.37 ppb (4) N/A 13.0 μg/m3 (52) 52.0
 
July 15, 2019, 6 p.m. 16.5 ppb (15) 6.3 ppb (6) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 20.0 ppb (15) 0.39 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
July 15, 2019, 5 p.m. 19.4 ppb (18) 8.2 ppb (8) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 17.0 ppb (13) 0.41 ppb (5) N/A N/A 18.0
 
July 15, 2019, 4 p.m. 20.2 ppb (19) 8.8 ppb (8) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 14.0 ppb (11) 0.45 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
July 15, 2019, 3 p.m. 23.6 ppb (22) 11.5 ppb (11) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 11.0 ppb (8) 0.49 ppb (5) N/A 14.0 μg/m3 (54) 54.0
 
July 15, 2019, 2 p.m. 23.7 ppb (22) 9.2 ppb (9) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 9.0 ppb (7) 0.46 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
July 15, 2019, 1 p.m. 32.7 ppb (30) 11.5 ppb (11) N/A 21.0 ppb (19) N/A 1.0 ppb (1) 3.0 ppb (2) 0.46 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
July 15, 2019, noon 18.9 ppb (18) 2.1 ppb (2) N/A 17.0 ppb (16) N/A N/A 4.0 ppb (3) 0.43 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
July 15, 2019, 11 a.m. 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
 
July 15, 2019, 10 a.m. 6.6 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 15.0 ppb (12) 0.35 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
July 15, 2019, 9 a.m. 4.4 ppb (4) -0.1 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 17.0 ppb (13) 0.34 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
July 15, 2019, 8 a.m. 7.7 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 14.0 ppb (11) 0.37 ppb (4) N/A 18.0 μg/m3 (63) 63.0
 
July 15, 2019, 7 a.m. 10.7 ppb (10) 0.2 ppb (0) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 11.0 ppb (8) 0.37 ppb (4) N/A 14.0 μg/m3 (54) 54.0
 
July 15, 2019, 6 a.m. 10.4 ppb (10) 0.1 ppb (0) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 12.0 ppb (9) 0.4 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
July 15, 2019, 5 a.m. 14.3 ppb (13) 0.6 ppb (1) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 9.0 ppb (7) 0.46 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
July 15, 2019, 4 a.m. 19.2 ppb (18) 0.5 ppb (0) N/A 19.0 ppb (18) N/A 1.0 ppb (1) 5.0 ppb (4) 0.39 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 15, 2019, 3 a.m. 18.7 ppb (17) 4.8 ppb (4) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 10.0 ppb (8) 0.37 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
July 15, 2019, 2 a.m. 16.3 ppb (15) 4.4 ppb (4) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 11.0 ppb (8) 0.38 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
July 15, 2019, 1 a.m. 9.6 ppb (9) 3.2 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 17.0 ppb (13) 0.37 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 15, 2019, midnight 8.9 ppb (8) 3.6 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 18.0 ppb (14) 0.35 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
July 14, 2019, 11 p.m. 6.2 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 21.0 ppb (16) 0.37 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
July 14, 2019, 10 p.m. 8.8 ppb (8) 3.3 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 20.0 ppb (15) 0.36 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
July 14, 2019, 9 p.m. 5.5 ppb (5) 1.8 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 22.0 ppb (17) 0.35 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
July 14, 2019, 8 p.m. 5.4 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 24.0 ppb (18) 0.35 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
July 14, 2019, 7 p.m. 6.7 ppb (6) 2.3 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 23.0 ppb (18) 0.35 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 14, 2019, 6 p.m. 6.3 ppb (6) 2.2 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 22.0 ppb (17) 0.34 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
July 14, 2019, 5 p.m. 5.2 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 21.0 ppb (16) 0.33 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 14, 2019, 4 p.m. 4.7 ppb (4) 1.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 20.0 ppb (15) 0.33 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
July 14, 2019, 3 p.m. 4.4 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 19.0 ppb (15) 0.33 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 14, 2019, 2 p.m. 3.3 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 18.0 ppb (14) 0.32 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
July 14, 2019, 1 p.m. 5.6 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 14.0 ppb (11) 0.31 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
July 14, 2019, noon 6.7 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 12.0 ppb (9) 0.32 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
July 14, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
July 14, 2019, 10 a.m. 13.9 ppb (13) 2.5 ppb (2) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 6.0 ppb (5) 0.31 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
July 14, 2019, 9 a.m. 6.7 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 11.0 ppb (8) 0.32 ppb (4) N/A 13.0 μg/m3 (52) 52.0
 
July 14, 2019, 8 a.m. 5.3 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 12.0 ppb (9) 0.33 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
July 14, 2019, 7 a.m. 6.3 ppb (6) 0.1 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 12.0 ppb (9) 0.37 ppb (4) N/A 15.0 μg/m3 (56) 56.0
 
July 14, 2019, 6 a.m. 15.3 ppb (14) 1.3 ppb (1) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 5.0 ppb (4) 0.37 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
July 14, 2019, 5 a.m. 20.5 ppb (19) 3.6 ppb (3) N/A 17.0 ppb (16) N/A 1.0 ppb (1) 3.0 ppb (2) 0.37 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 14, 2019, 4 a.m. 9.1 ppb (8) 0.8 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 11.0 ppb (8) 0.36 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
July 14, 2019, 3 a.m. 6.2 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (10) 0.36 ppb (4) N/A 17.0 μg/m3 (61) 61.0
 
July 14, 2019, 2 a.m. 4.6 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 16.0 ppb (12) 0.35 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
July 14, 2019, 1 a.m. 9.6 ppb (9) 4.2 ppb (4) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 16.0 ppb (12) 0.36 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
July 14, 2019, midnight 8.3 ppb (8) 3.2 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 17.0 ppb (13) 0.36 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
July 13, 2019, 11 p.m. 5.8 ppb (5) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 18.0 ppb (14) 0.36 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 13, 2019, 10 p.m. 5.4 ppb (5) 1.9 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 18.0 ppb (14) 0.35 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
July 13, 2019, 9 p.m. 7.0 ppb (6) 2.6 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 18.0 ppb (14) 0.36 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
July 13, 2019, 8 p.m. 8.7 ppb (8) 3.5 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 17.0 ppb (13) 0.36 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 13, 2019, 7 p.m. 7.2 ppb (7) 2.9 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 17.0 ppb (13) 0.35 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 13, 2019, 6 p.m. 6.5 ppb (6) 2.7 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 16.0 ppb (12) 0.34 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
July 13, 2019, 5 p.m. 5.9 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 15.0 ppb (12) 0.34 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
July 13, 2019, 4 p.m. 6.6 ppb (6) 2.2 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 13.0 ppb (10) 0.33 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
July 13, 2019, 3 p.m. 6.4 ppb (6) 1.5 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 12.0 ppb (9) 0.33 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
July 13, 2019, 2 p.m. 4.7 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 13.0 ppb (10) 0.32 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
July 13, 2019, 1 p.m. 5.1 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 12.0 ppb (9) 0.31 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
July 13, 2019, noon 6.0 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 12.0 ppb (9) 0.3 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
July 13, 2019, 11 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
 
July 13, 2019, 10 a.m. 4.5 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 13.0 ppb (10) 0.31 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
July 13, 2019, 9 a.m. 2.5 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 14.0 ppb (11) 0.31 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
July 13, 2019, 8 a.m. 3.4 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 13.0 ppb (10) 0.31 ppb (3) N/A 3.0 μg/m3 (12) 12.0