AQSQID: 060010011

Site Name: Oakland West

Location: Oakland (Ralph Bunche), CA

Reporting: True, Located: True

Current AQI: 33.0

Oakland (Ralph Bunche) CA, US: 37.8148, -122.282402

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 22, 2020, 6 p.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
 
Jan. 22, 2020, 5 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
 
Jan. 22, 2020, 4 p.m. 46.0 ppb (43) 21.4 ppb (20) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 3.0 ppb (2) 0.59 ppb (7) N/A 8.0 μg/m3 (33) 43.0
 
Jan. 22, 2020, 3 p.m. 42.6 ppb (39) 15.1 ppb (14) N/A 28.0 ppb (26) N/A 0.0 ppb (0) 1.0 ppb (1) 0.55 ppb (6) N/A 3.0 μg/m3 (12) 39.0
 
Jan. 22, 2020, 2 p.m. 35.1 ppb (32) 8.4 ppb (8) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 3.0 ppb (2) 0.47 ppb (5) N/A 6.0 μg/m3 (25) 32.0
 
Jan. 22, 2020, 1 p.m. 14.7 ppb (14) 0.0 ppb (0) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 13.0 ppb (10) 0.38 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 22, 2020, noon 10.9 ppb (10) -0.5 ppb (0) N/A 11.0 ppb (10) N/A N/A 16.0 ppb (12) 0.35 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 22, 2020, 11 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
 
Jan. 22, 2020, 10 a.m. 9.6 ppb (9) -0.4 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 18.0 ppb (14) 0.34 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 22, 2020, 9 a.m. 11.3 ppb (10) -0.4 ppb (0) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 18.0 ppb (14) 0.35 ppb (4) N/A 0.0 μg/m3 (0) 14.0
 
Jan. 22, 2020, 8 a.m. 12.5 ppb (12) -0.3 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 17.0 ppb (13) 0.36 ppb (4) N/A 2.0 μg/m3 (8) 13.0
 
Jan. 22, 2020, 7 a.m. 13.0 ppb (12) -0.2 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 17.0 ppb (13) 0.38 ppb (4) N/A 3.0 μg/m3 (12) 13.0
 
Jan. 22, 2020, 6 a.m. 9.6 ppb (9) -0.2 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 21.0 ppb (16) 0.33 ppb (4) N/A 3.0 μg/m3 (12) 16.0
 
Jan. 22, 2020, 5 a.m. 10.9 ppb (10) -0.2 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 21.0 ppb (16) 0.36 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 22, 2020, 4 a.m. 11.4 ppb (11) -0.3 ppb (0) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 19.0 ppb (15) 0.37 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 22, 2020, 3 a.m. 8.1 ppb (8) -0.4 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 24.0 ppb (18) 0.33 ppb (4) N/A 0.0 μg/m3 (0) 18.0
 
Jan. 22, 2020, 2 a.m. 6.9 ppb (6) -0.4 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (20) 0.32 ppb (4) N/A 1.0 μg/m3 (4) 20.0
 
Jan. 22, 2020, 1 a.m. 11.3 ppb (10) -0.1 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 21.0 ppb (16) 0.36 ppb (4) N/A 0.0 μg/m3 (0) 16.0
 
Jan. 22, 2020, midnight 7.3 ppb (7) -0.1 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 26.0 ppb (20) 0.34 ppb (4) N/A 1.0 μg/m3 (4) 20.0
 
Jan. 21, 2020, 11 p.m. 8.8 ppb (8) 0.1 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 25.0 ppb (19) 0.34 ppb (4) N/A 1.0 μg/m3 (4) 19.0
 
Jan. 21, 2020, 10 p.m. 9.7 ppb (9) 0.4 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 25.0 ppb (19) 0.32 ppb (4) N/A 3.0 μg/m3 (12) 19.0
 
Jan. 21, 2020, 9 p.m. 7.1 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) 0.29 ppb (3) N/A 3.0 μg/m3 (12) 22.0
 
Jan. 21, 2020, 8 p.m. 10.2 ppb (9) 0.9 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 26.0 ppb (20) 0.31 ppb (3) N/A 3.0 μg/m3 (12) 20.0
 
Jan. 21, 2020, 7 p.m. 13.4 ppb (12) 1.3 ppb (1) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 25.0 ppb (19) 0.35 ppb (4) N/A 4.0 μg/m3 (17) 19.0
 
Jan. 21, 2020, 6 p.m. 13.3 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 25.0 ppb (19) 0.35 ppb (4) N/A 4.0 μg/m3 (17) 19.0
 
Jan. 21, 2020, 5 p.m. 18.5 ppb (17) 1.9 ppb (2) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 21.0 ppb (16) 0.38 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 21, 2020, 4 p.m. 28.3 ppb (26) 3.1 ppb (3) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 12.0 ppb (9) 0.52 ppb (6) N/A 5.0 μg/m3 (21) 26.0
 
Jan. 21, 2020, 3 p.m. 22.5 ppb (21) 0.7 ppb (1) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 14.0 ppb (11) 0.42 ppb (5) N/A 3.0 μg/m3 (12) 21.0
 
Jan. 21, 2020, 2 p.m. 17.9 ppb (17) -0.1 ppb (0) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 17.0 ppb (13) 0.37 ppb (4) N/A 1.0 μg/m3 (4) 17.0
 
Jan. 21, 2020, 1 p.m. 14.7 ppb (14) -0.3 ppb (0) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 20.0 ppb (15) 0.34 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 21, 2020, noon 12.3 ppb (11) -0.3 ppb (0) N/A 13.0 ppb (12) N/A N/A 21.0 ppb (16) 0.34 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 21, 2020, 10 a.m. 13.4 ppb (12) -0.2 ppb (0) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 20.0 ppb (15) 0.36 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 21, 2020, 9 a.m. 10.3 ppb (10) -0.4 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 24.0 ppb (18) 0.33 ppb (4) N/A 3.0 μg/m3 (12) 18.0
 
Jan. 21, 2020, 8 a.m. 12.6 ppb (12) 0.4 ppb (0) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 25.0 ppb (19) 0.24 ppb (3) N/A 4.0 μg/m3 (17) 19.0
 
Jan. 21, 2020, 7 a.m. 17.8 ppb (16) 2.2 ppb (2) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 21.0 ppb (16) 0.41 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 21, 2020, 6 a.m. 73.6 ppb (71) 43.0 ppb (40) N/A 31.0 ppb (29) N/A 0.0 ppb (0) 1.0 ppb (1) 1.26 ppb (14) N/A 16.0 μg/m3 (59) 71.0
 
Jan. 21, 2020, 5 a.m. 95.2 ppb (94) 66.1 ppb (63) N/A 29.0 ppb (27) N/A 0.0 ppb (0) 1.0 ppb (1) 1.24 ppb (14) N/A 24.0 μg/m3 (76) 94.0
 
Jan. 21, 2020, 4 a.m. 89.3 ppb (88) 57.9 ppb (54) N/A 32.0 ppb (30) N/A 0.0 ppb (0) 0.0 ppb (0) 1.12 ppb (12) N/A 17.0 μg/m3 (61) 88.0
 
Jan. 21, 2020, 3 a.m. 61.0 ppb (57) 29.4 ppb (27) N/A 32.0 ppb (30) N/A 0.0 ppb (0) 2.0 ppb (2) 0.95 ppb (11) N/A 22.0 μg/m3 (71) 71.0
 
Jan. 21, 2020, 2 a.m. 27.9 ppb (26) 2.5 ppb (2) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 9.0 ppb (7) 0.52 ppb (6) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 21, 2020, 1 a.m. 26.5 ppb (25) 2.2 ppb (2) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 7.0 ppb (5) 0.51 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 21, 2020, midnight 24.5 ppb (23) 4.1 ppb (4) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 9.0 ppb (7) 0.43 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 20, 2020, 11 p.m. 33.0 ppb (31) 11.8 ppb (11) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 7.0 ppb (5) 0.43 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 20, 2020, 10 p.m. 31.4 ppb (29) 11.9 ppb (11) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 7.0 ppb (5) 0.45 ppb (5) N/A 16.0 μg/m3 (59) 59.0
 
Jan. 20, 2020, 9 p.m. 35.9 ppb (33) 15.9 ppb (15) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 6.0 ppb (5) 0.57 ppb (6) N/A 20.0 μg/m3 (67) 67.0
 
Jan. 20, 2020, 8 p.m. 35.2 ppb (33) 16.1 ppb (15) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 5.0 ppb (4) 0.54 ppb (6) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 20, 2020, 7 p.m. 40.9 ppb (38) 20.1 ppb (19) N/A 21.0 ppb (19) N/A 1.0 ppb (1) 5.0 ppb (4) 0.54 ppb (6) N/A 14.0 μg/m3 (54) 54.0
 
Jan. 20, 2020, 6 p.m. 36.1 ppb (33) 16.5 ppb (15) N/A 20.0 ppb (19) N/A 1.0 ppb (1) 5.0 ppb (4) 0.5 ppb (6) N/A 14.0 μg/m3 (54) 54.0
 
Jan. 20, 2020, 5 p.m. 31.6 ppb (29) 12.0 ppb (11) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 4.0 ppb (3) 0.44 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 20, 2020, 4 p.m. 71.9 ppb (69) 44.3 ppb (41) N/A 28.0 ppb (26) N/A 0.0 ppb (0) 0.0 ppb (0) 0.66 ppb (7) N/A 13.0 μg/m3 (52) 69.0
 
Jan. 20, 2020, 3 p.m. 71.5 ppb (69) 45.4 ppb (42) N/A 26.0 ppb (24) N/A 0.0 ppb (0) 0.0 ppb (0) 0.72 ppb (8) N/A 15.0 μg/m3 (56) 69.0
 
Jan. 20, 2020, 2 p.m. 60.1 ppb (56) 34.8 ppb (32) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 0.0 ppb (0) 0.66 ppb (7) N/A 13.0 μg/m3 (52) 56.0
 
Jan. 20, 2020, 1 p.m. 45.1 ppb (42) 20.9 ppb (19) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 0.0 ppb (0) 0.55 ppb (6) N/A 9.0 μg/m3 (38) 42.0
 
Jan. 20, 2020, noon 34.5 ppb (32) 11.1 ppb (10) N/A 23.0 ppb (21) N/A N/A 0.0 ppb (0) 0.53 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 20, 2020, 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
 
Jan. 20, 2020, 10 a.m. 19.4 ppb (18) 0.3 ppb (0) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 5.0 ppb (4) 0.39 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, 9 a.m. 18.1 ppb (17) 1.0 ppb (1) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 8.0 ppb (6) 0.38 ppb (4) N/A 16.0 μg/m3 (59) 59.0
 
Jan. 20, 2020, 8 a.m. 31.5 ppb (29) 6.1 ppb (6) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 1.0 ppb (1) 0.46 ppb (5) N/A 14.0 μg/m3 (54) 54.0
 
Jan. 20, 2020, 7 a.m. 33.9 ppb (31) 9.5 ppb (9) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 1.0 ppb (1) 0.47 ppb (5) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 20, 2020, 6 a.m. 40.1 ppb (37) 16.5 ppb (15) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 0.0 ppb (0) 0.58 ppb (6) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 20, 2020, 5 a.m. 25.2 ppb (23) 3.9 ppb (4) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 3.0 ppb (2) 0.5 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 20, 2020, 4 a.m. 29.0 ppb (27) 5.7 ppb (5) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 1.0 ppb (1) 0.55 ppb (6) N/A 16.0 μg/m3 (59) 59.0
 
Jan. 20, 2020, 3 a.m. 29.5 ppb (27) 5.4 ppb (5) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 3.0 ppb (2) 0.49 ppb (5) N/A 14.0 μg/m3 (54) 54.0
 
Jan. 20, 2020, 2 a.m. 49.4 ppb (46) 20.8 ppb (19) N/A 29.0 ppb (27) N/A 0.0 ppb (0) 0.0 ppb (0) 0.53 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 20, 2020, 1 a.m. 43.2 ppb (40) 15.2 ppb (14) N/A 28.0 ppb (26) N/A 0.0 ppb (0) 1.0 ppb (1) 0.45 ppb (5) N/A 9.0 μg/m3 (38) 40.0
 
Jan. 20, 2020, midnight 24.8 ppb (23) 3.4 ppb (3) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 7.0 ppb (5) 0.39 ppb (4) N/A 5.0 μg/m3 (21) 23.0
 
Jan. 19, 2020, 11 p.m. 25.4 ppb (24) 5.4 ppb (5) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 9.0 ppb (7) 0.4 ppb (4) N/A 3.0 μg/m3 (12) 24.0
 
Jan. 19, 2020, 10 p.m. 22.5 ppb (21) 4.7 ppb (4) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 13.0 ppb (10) 0.35 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2020, 9 p.m. 22.3 ppb (21) 5.8 ppb (5) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 14.0 ppb (11) 0.35 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2020, 8 p.m. 19.0 ppb (18) 6.2 ppb (6) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 15.0 ppb (12) 0.36 ppb (4) N/A 4.0 μg/m3 (17) 18.0
 
Jan. 19, 2020, 7 p.m. 21.1 ppb (20) 6.8 ppb (6) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 13.0 ppb (10) 0.37 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2020, 6 p.m. 13.9 ppb (13) 3.0 ppb (3) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 15.0 ppb (12) 0.35 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2020, 5 p.m. 43.4 ppb (40) 18.2 ppb (17) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 6.0 ppb (5) 0.48 ppb (5) N/A 5.0 μg/m3 (21) 40.0
 
Jan. 19, 2020, 4 p.m. 50.1 ppb (46) 20.4 ppb (19) N/A 30.0 ppb (28) N/A 0.0 ppb (0) 2.0 ppb (2) 0.55 ppb (6) N/A 2.0 μg/m3 (8) 46.0
 
Jan. 19, 2020, 3 p.m. 15.6 ppb (14) 0.8 ppb (1) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 18.0 ppb (14) 0.28 ppb (3) N/A 0.0 μg/m3 (0) 14.0
 
Jan. 19, 2020, 2 p.m. 28.8 ppb (27) 8.9 ppb (8) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 13.0 ppb (10) 0.34 ppb (4) N/A 2.0 μg/m3 (8) 27.0
 
Jan. 19, 2020, 1 p.m. 42.3 ppb (39) 11.8 ppb (11) N/A 31.0 ppb (29) N/A 0.0 ppb (0) 2.0 ppb (2) 0.47 ppb (5) N/A 4.0 μg/m3 (17) 39.0
 
Jan. 19, 2020, noon 25.7 ppb (24) 1.8 ppb (2) N/A 24.0 ppb (22) N/A N/A 9.0 ppb (7) 0.34 ppb (4) N/A 3.0 μg/m3 (12) 24.0
 
Jan. 19, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 19, 2020, 10 a.m. 18.0 ppb (17) -0.2 ppb (0) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 16.0 ppb (12) 0.3 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2020, 9 a.m. 8.2 ppb (8) -0.4 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 26.0 ppb (20) 0.26 ppb (3) N/A 2.0 μg/m3 (8) 20.0
 
Jan. 19, 2020, 8 a.m. 4.6 ppb (4) -0.4 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) 0.23 ppb (3) N/A -1.0 μg/m3 (0) 24.0
 
Jan. 19, 2020, 7 a.m. 4.7 ppb (4) -0.4 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) 0.24 ppb (3) N/A -2.0 μg/m3 (0) 24.0
 
Jan. 19, 2020, 6 a.m. 5.4 ppb (5) -0.2 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (23) 0.23 ppb (3) N/A 2.0 μg/m3 (8) 23.0
 
Jan. 19, 2020, 5 a.m. 5.3 ppb (5) -0.2 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (23) 0.24 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2020, 4 a.m. 5.9 ppb (5) -0.2 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) 0.26 ppb (3) N/A 2.0 μg/m3 (8) 22.0
 
Jan. 19, 2020, 3 a.m. 5.4 ppb (5) -0.3 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) 0.27 ppb (3) N/A 3.0 μg/m3 (12) 22.0
 
Jan. 19, 2020, 2 a.m. 7.8 ppb (7) -0.1 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 28.0 ppb (22) 0.32 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2020, 1 a.m. 7.6 ppb (7) -0.1 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 26.0 ppb (20) 0.31 ppb (3) N/A 4.0 μg/m3 (17) 20.0
 
Jan. 19, 2020, midnight 5.0 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (22) 0.28 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2020, 11 p.m. 4.9 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (22) 0.28 ppb (3) N/A -1.0 μg/m3 (0) 22.0
 
Jan. 18, 2020, 10 p.m. 5.5 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 27.0 ppb (21) 0.27 ppb (3) N/A 1.0 μg/m3 (4) 21.0
 
Jan. 18, 2020, 9 p.m. 5.1 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (22) 0.28 ppb (3) N/A 4.0 μg/m3 (17) 22.0
 
Jan. 18, 2020, 8 p.m. 5.2 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (22) 0.28 ppb (3) N/A 2.0 μg/m3 (8) 22.0
 
Jan. 18, 2020, 7 p.m. 5.6 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 27.0 ppb (21) 0.26 ppb (3) N/A 2.0 μg/m3 (8) 21.0
 
Jan. 18, 2020, 6 p.m. 6.6 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (20) 0.28 ppb (3) N/A 3.0 μg/m3 (12) 20.0
 
Jan. 18, 2020, 5 p.m. 7.0 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) 0.27 ppb (3) N/A 4.0 μg/m3 (17) 19.0
 
Jan. 18, 2020, 4 p.m. 10.7 ppb (10) 1.3 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 23.0 ppb (18) 0.34 ppb (4) N/A 3.0 μg/m3 (12) 18.0
 
Jan. 18, 2020, 3 p.m. 9.8 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 23.0 ppb (18) 0.27 ppb (3) N/A 3.0 μg/m3 (12) 18.0
 
Jan. 18, 2020, 2 p.m. 6.5 ppb (6) -0.2 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) 0.27 ppb (3) N/A 4.0 μg/m3 (17) 19.0
 
Jan. 18, 2020, 1 p.m. 7.3 ppb (7) 0.1 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) 0.24 ppb (3) N/A 3.0 μg/m3 (12) 21.0
 
Jan. 18, 2020, noon 7.5 ppb (7) -0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 28.0 ppb (22) 0.25 ppb (3) N/A 1.0 μg/m3 (4) 22.0
 
Jan. 18, 2020, 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
 
Jan. 18, 2020, 10 a.m. 4.4 ppb (4) -0.5 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) 0.26 ppb (3) N/A 2.0 μg/m3 (8) 24.0
 
Jan. 18, 2020, 9 a.m. 6.1 ppb (6) -0.3 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) 0.26 ppb (3) N/A 2.0 μg/m3 (8) 22.0
 
Jan. 18, 2020, 8 a.m. 16.6 ppb (15) 1.0 ppb (1) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 18.0 ppb (14) 0.46 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2020, 7 a.m. 32.2 ppb (30) 5.3 ppb (5) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 5.0 ppb (4) 0.6 ppb (7) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 18, 2020, 6 a.m. 17.9 ppb (17) 0.3 ppb (0) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 17.0 ppb (13) 0.4 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2020, 5 a.m. 16.3 ppb (15) 0.4 ppb (0) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 20.0 ppb (15) 0.34 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2020, 4 a.m. 13.5 ppb (12) 0.2 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 24.0 ppb (18) 0.34 ppb (4) N/A 2.0 μg/m3 (8) 18.0
 
Jan. 18, 2020, 3 a.m. 7.2 ppb (7) -0.2 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) 0.28 ppb (3) N/A 2.0 μg/m3 (8) 24.0
 
Jan. 18, 2020, 2 a.m. 11.3 ppb (10) 0.2 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 28.0 ppb (22) 0.31 ppb (3) N/A 2.0 μg/m3 (8) 22.0
 
Jan. 18, 2020, 1 a.m. 26.6 ppb (25) 2.0 ppb (2) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 14.0 ppb (11) 0.41 ppb (5) N/A 4.0 μg/m3 (17) 25.0
 
Jan. 18, 2020, midnight 21.4 ppb (20) 2.1 ppb (2) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 20.0 ppb (15) 0.35 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2020, 11 p.m. 15.5 ppb (14) 2.7 ppb (3) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 24.0 ppb (18) 0.33 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2020, 10 p.m. 14.4 ppb (13) 2.4 ppb (2) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 28.0 ppb (22) 0.29 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2020, 9 p.m. 18.9 ppb (18) 5.1 ppb (5) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 25.0 ppb (19) 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2020, 8 p.m. 23.5 ppb (22) 8.7 ppb (8) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 19.0 ppb (15) 0.33 ppb (4) N/A 4.0 μg/m3 (17) 22.0
 
Jan. 17, 2020, 6 p.m. 79.9 ppb (78) 43.1 ppb (40) N/A 37.0 ppb (34) N/A 1.0 ppb (1) 7.0 ppb (5) 0.72 ppb (8) N/A 10.0 μg/m3 (42) 78.0
 
Jan. 17, 2020, 5 p.m. 91.7 ppb (90) 52.2 ppb (48) N/A 40.0 ppb (37) N/A 1.0 ppb (1) 4.0 ppb (3) 0.84 ppb (9) N/A 12.0 μg/m3 (50) 90.0
 
Jan. 17, 2020, 4 p.m. 142.8 ppb (108) 97.4 ppb (96) N/A 45.0 ppb (42) N/A 1.0 ppb (1) 1.0 ppb (1) 1.32 ppb (15) N/A 14.0 μg/m3 (54) 108.0
 
Jan. 17, 2020, 3 p.m. 131.8 ppb (106) 94.8 ppb (93) N/A 37.0 ppb (34) N/A 0.0 ppb (0) 1.0 ppb (1) 1.41 ppb (16) N/A 5.0 μg/m3 (21) 106.0
 
Jan. 17, 2020, 2 p.m. 65.4 ppb (62) 32.5 ppb (30) N/A 33.0 ppb (31) N/A 0.0 ppb (0) 0.0 ppb (0) 0.93 ppb (10) N/A 5.0 μg/m3 (21) 62.0
 
Jan. 17, 2020, 1 p.m. 30.2 ppb (28) 5.0 ppb (5) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 8.0 ppb (6) 0.38 ppb (4) N/A 4.0 μg/m3 (17) 28.0
 
Jan. 17, 2020, noon 12.5 ppb (12) -0.3 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 21.0 ppb (16) 0.26 ppb (3) N/A 1.0 μg/m3 (4) 16.0
 
Jan. 17, 2020, 11 a.m. 7.8 ppb (7) -0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 27.0 ppb (21) 0.26 ppb (3) N/A -2.0 μg/m3 (0) 21.0
 
Jan. 17, 2020, 10 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
 
Jan. 17, 2020, 9 a.m. 12.7 ppb (12) -0.2 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 21.0 ppb (16) 0.3 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2020, 8 a.m. 15.7 ppb (15) -0.1 ppb (0) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 18.0 ppb (14) 0.34 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2020, 7 a.m. 16.5 ppb (15) 0.0 ppb (0) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 18.0 ppb (14) 0.34 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2020, 6 a.m. 20.3 ppb (19) 0.2 ppb (0) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 16.0 ppb (12) 0.41 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2020, 5 a.m. 21.9 ppb (20) 0.5 ppb (0) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 16.0 ppb (12) 0.41 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2020, 4 a.m. 23.8 ppb (22) 0.8 ppb (1) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 18.0 ppb (14) 0.4 ppb (4) N/A 5.0 μg/m3 (21) 22.0
 
Jan. 17, 2020, 3 a.m. 24.3 ppb (23) 1.0 ppb (1) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 20.0 ppb (15) 0.33 ppb (4) N/A 3.0 μg/m3 (12) 23.0
 
Jan. 17, 2020, 2 a.m. 21.0 ppb (19) 1.1 ppb (1) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 23.0 ppb (18) 0.4 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2020, 1 a.m. 11.2 ppb (10) -0.2 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 32.0 ppb (25) 0.4 ppb (4) N/A 2.0 μg/m3 (8) 25.0
 
Jan. 17, 2020, midnight 16.5 ppb (15) 0.9 ppb (1) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 27.0 ppb (21) 0.4 ppb (4) N/A 1.0 μg/m3 (4) 21.0
 
Jan. 16, 2020, 11 p.m. 10.0 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 33.0 ppb (25) 0.28 ppb (3) N/A 1.0 μg/m3 (4) 25.0
 
Jan. 16, 2020, 10 p.m. 11.6 ppb (11) 1.1 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 32.0 ppb (25) 0.27 ppb (3) N/A 0.0 μg/m3 (0) 25.0
 
Jan. 16, 2020, 9 p.m. 10.2 ppb (9) 0.2 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 33.0 ppb (25) 0.26 ppb (3) N/A 2.0 μg/m3 (8) 25.0
 
Jan. 16, 2020, 8 p.m. 17.0 ppb (16) 1.5 ppb (1) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 28.0 ppb (22) 0.3 ppb (3) N/A 5.0 μg/m3 (21) 22.0
 
Jan. 16, 2020, 7 p.m. 13.7 ppb (13) 0.7 ppb (1) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 31.0 ppb (24) 0.29 ppb (3) N/A 0.0 μg/m3 (0) 24.0
 
Jan. 16, 2020, 6 p.m. 18.4 ppb (17) 0.9 ppb (1) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 25.0 ppb (19) 0.32 ppb (4) N/A 2.0 μg/m3 (8) 19.0
 
Jan. 16, 2020, 5 p.m. 13.3 ppb (12) 0.9 ppb (1) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 30.0 ppb (23) 0.29 ppb (3) N/A 1.0 μg/m3 (4) 23.0
 
Jan. 16, 2020, 4 p.m. 7.0 ppb (6) -0.2 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) 0.21 ppb (2) N/A 0.0 μg/m3 (0) 25.0
 
Jan. 16, 2020, 3 p.m. 6.7 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) 0.21 ppb (2) N/A 3.0 μg/m3 (12) 25.0
 
Jan. 16, 2020, 2 p.m. 4.9 ppb (5) -0.3 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (26) 0.2 ppb (2) N/A 4.0 μg/m3 (17) 26.0
 
Jan. 16, 2020, 1 p.m. 4.7 ppb (4) -0.4 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (27) 0.19 ppb (2) N/A 2.0 μg/m3 (8) 27.0
 
Jan. 16, 2020, noon 3.9 ppb (4) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) 0.18 ppb (2) N/A 3.0 μg/m3 (12) 27.0
 
Jan. 16, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 16, 2020, 10 a.m. 4.1 ppb (4) -0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (26) 0.2 ppb (2) N/A 1.0 μg/m3 (4) 26.0
 
Jan. 16, 2020, 9 a.m. 4.7 ppb (4) -0.4 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (25) 0.19 ppb (2) N/A 3.0 μg/m3 (12) 25.0
 
Jan. 16, 2020, 8 a.m. 8.4 ppb (8) -0.3 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 29.0 ppb (22) 0.24 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2020, 7 a.m. 17.2 ppb (16) -0.1 ppb (0) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 17.0 ppb (13) 0.34 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2020, 6 a.m. 21.6 ppb (20) 0.2 ppb (0) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 14.0 ppb (11) 0.37 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2020, 5 a.m. 23.4 ppb (22) 0.6 ppb (1) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 13.0 ppb (10) 0.4 ppb (4) N/A 4.0 μg/m3 (17) 22.0
 
Jan. 16, 2020, 4 a.m. 22.4 ppb (21) 0.3 ppb (0) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 16.0 ppb (12) 0.39 ppb (4) N/A 3.0 μg/m3 (12) 21.0
 
Jan. 16, 2020, 3 a.m. 15.5 ppb (14) 0.2 ppb (0) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 24.0 ppb (18) 0.32 ppb (4) N/A 3.0 μg/m3 (12) 18.0
 
Jan. 16, 2020, 2 a.m. 15.6 ppb (14) 0.3 ppb (0) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 25.0 ppb (19) 0.32 ppb (4) N/A 3.0 μg/m3 (12) 19.0
 
Jan. 16, 2020, 1 a.m. 17.6 ppb (16) 0.1 ppb (0) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 24.0 ppb (18) 0.29 ppb (3) N/A 3.0 μg/m3 (12) 18.0
 
Jan. 16, 2020, midnight 14.2 ppb (13) 1.1 ppb (1) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 28.0 ppb (22) 0.32 ppb (4) N/A 1.0 μg/m3 (4) 22.0
 
Jan. 15, 2020, 11 p.m. 18.4 ppb (17) 2.2 ppb (2) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 24.0 ppb (18) 0.27 ppb (3) N/A 3.0 μg/m3 (12) 18.0
 
Jan. 15, 2020, 10 p.m. 19.8 ppb (18) 4.1 ppb (4) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 23.0 ppb (18) 0.28 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2020, 9 p.m. 15.8 ppb (15) 3.0 ppb (3) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 25.0 ppb (19) 0.27 ppb (3) N/A 2.0 μg/m3 (8) 19.0
 
Jan. 15, 2020, 8 p.m. 20.9 ppb (19) 5.0 ppb (5) N/A 16.0 ppb (15) N/A 1.0 ppb (1) 22.0 ppb (17) 0.33 ppb (4) N/A 4.0 μg/m3 (17) 19.0
 
Jan. 15, 2020, 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 (29) 29.0