AQSQID: 060010012

Site Name: Laney College

Location: Oakland (Nimitz Fwy), CA

Reporting: True, Located: True

Current AQI: 44.0

Oakland (Nimitz Fwy) CA, US: 37.793624, -122.263376

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 26, 2019, 7 p.m. 43.8 ppb (41) 19.3 ppb (18) N/A 25.0 ppb (23) N/A N/A N/A 0.45 ppb (5) N/A 4.0 μg/m3 (17) 41.0
 
March 26, 2019, 6 p.m. 47.8 ppb (44) 21.7 ppb (20) N/A 26.0 ppb (24) N/A N/A N/A 0.46 ppb (5) N/A 5.0 μg/m3 (21) 44.0
 
March 26, 2019, 5 p.m. 53.0 ppb (49) 24.2 ppb (22) N/A 29.0 ppb (27) N/A N/A N/A 0.5 ppb (6) N/A 7.0 μg/m3 (29) 49.0
 
March 26, 2019, 4 p.m. 84.6 ppb (83) 44.6 ppb (41) N/A 40.0 ppb (37) N/A N/A N/A 0.54 ppb (6) N/A 8.0 μg/m3 (33) 83.0
 
March 26, 2019, 3 p.m. 33.8 ppb (31) 12.6 ppb (12) N/A 21.0 ppb (19) N/A N/A N/A 0.6 ppb (7) N/A N/A 31.0
 
March 26, 2019, 2 p.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
 
March 26, 2019, 1 p.m. 22.7 ppb (21) 1.5 ppb (1) N/A 21.0 ppb (19) N/A N/A N/A 0.52 ppb (6) N/A 0.0 μg/m3 (0) 21.0
 
March 26, 2019, noon 11.8 ppb (11) 0.1 ppb (0) N/A 12.0 ppb (11) N/A N/A N/A 0.37 ppb (4) N/A 2.0 μg/m3 (8) 11.0
 
March 26, 2019, 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
 
March 26, 2019, 10 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
 
March 26, 2019, 9 a.m. 16.0 ppb (15) 1.9 ppb (2) N/A 14.0 ppb (13) N/A N/A N/A 0.34 ppb (4) N/A 3.0 μg/m3 (12) 15.0
 
March 26, 2019, 8 a.m. 21.4 ppb (20) 1.3 ppb (1) N/A 20.0 ppb (19) N/A N/A N/A 0.38 ppb (4) N/A 3.0 μg/m3 (12) 20.0
 
March 26, 2019, 7 a.m. 13.1 ppb (12) 0.1 ppb (0) N/A 13.0 ppb (12) N/A N/A N/A 0.37 ppb (4) N/A 0.0 μg/m3 (0) 12.0
 
March 26, 2019, 6 a.m. 16.0 ppb (15) 1.4 ppb (1) N/A 15.0 ppb (14) N/A N/A N/A 0.36 ppb (4) N/A 2.0 μg/m3 (8) 15.0
 
March 26, 2019, 5 a.m. 18.3 ppb (17) 1.3 ppb (1) N/A 17.0 ppb (16) N/A N/A N/A 0.41 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
March 26, 2019, 4 a.m. 33.1 ppb (31) 4.3 ppb (4) N/A 29.0 ppb (27) N/A N/A N/A 0.44 ppb (5) N/A 5.0 μg/m3 (21) 31.0
 
March 26, 2019, 3 a.m. 30.3 ppb (28) 5.1 ppb (5) N/A 25.0 ppb (23) N/A N/A N/A 0.44 ppb (5) N/A 4.0 μg/m3 (17) 28.0
 
March 26, 2019, 2 a.m. 22.1 ppb (20) 5.2 ppb (5) N/A 17.0 ppb (16) N/A N/A N/A 0.41 ppb (5) N/A 3.0 μg/m3 (12) 20.0
 
March 26, 2019, 1 a.m. 39.0 ppb (36) 17.0 ppb (16) N/A 22.0 ppb (20) N/A N/A N/A 0.44 ppb (5) N/A 5.0 μg/m3 (21) 36.0
 
March 26, 2019, midnight 33.2 ppb (31) 16.0 ppb (15) N/A 17.0 ppb (16) N/A N/A N/A 0.42 ppb (5) N/A 6.0 μg/m3 (25) 31.0
 
March 25, 2019, 11 p.m. 39.9 ppb (37) 21.0 ppb (19) N/A 19.0 ppb (18) N/A N/A N/A 0.41 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
March 25, 2019, 10 p.m. 30.0 ppb (28) 15.6 ppb (14) N/A 14.0 ppb (13) N/A N/A N/A 0.4 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
March 25, 2019, 9 p.m. 30.6 ppb (28) 15.1 ppb (14) N/A 16.0 ppb (15) N/A N/A N/A 0.38 ppb (4) N/A 5.0 μg/m3 (21) 28.0
 
March 25, 2019, 8 p.m. 27.7 ppb (26) 11.7 ppb (11) N/A 16.0 ppb (15) N/A N/A N/A 0.39 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
March 25, 2019, 7 p.m. 27.0 ppb (25) 9.6 ppb (9) N/A 17.0 ppb (16) N/A N/A N/A 0.4 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
March 25, 2019, 6 p.m. 33.2 ppb (31) 12.2 ppb (11) N/A 21.0 ppb (19) N/A N/A N/A 0.39 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
March 25, 2019, 5 p.m. 32.3 ppb (30) 12.4 ppb (11) N/A 20.0 ppb (19) N/A N/A N/A 0.35 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
March 25, 2019, 4 p.m. 49.8 ppb (46) 19.3 ppb (18) N/A 31.0 ppb (29) N/A N/A N/A 0.45 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
March 25, 2019, 3 p.m. 60.7 ppb (57) 25.1 ppb (23) N/A 36.0 ppb (33) N/A N/A N/A 0.56 ppb (6) N/A 11.0 μg/m3 (46) 57.0
 
March 25, 2019, 2 p.m. 30.4 ppb (28) 4.9 ppb (5) N/A 26.0 ppb (24) N/A N/A N/A 0.44 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
March 25, 2019, 1 p.m. 45.7 ppb (42) 16.3 ppb (15) N/A 29.0 ppb (27) N/A N/A N/A 0.47 ppb (5) N/A 7.0 μg/m3 (29) 42.0
 
March 25, 2019, noon 32.1 ppb (30) 8.7 ppb (8) N/A 23.0 ppb (21) N/A N/A N/A 0.47 ppb (5) N/A 6.0 μg/m3 (25) 30.0
 
March 25, 2019, 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
 
March 25, 2019, 10 a.m. 11.8 ppb (11) 0.0 ppb (0) N/A 12.0 ppb (11) N/A N/A N/A 0.33 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
March 25, 2019, 9 a.m. 13.6 ppb (13) 0.0 ppb (0) N/A 14.0 ppb (13) N/A N/A N/A 0.39 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
March 25, 2019, 8 a.m. 10.0 ppb (9) 0.3 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A 0.34 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
March 25, 2019, 7 a.m. 14.4 ppb (13) 1.8 ppb (2) N/A 13.0 ppb (12) N/A N/A N/A 0.36 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
March 25, 2019, 6 a.m. 23.7 ppb (22) 2.9 ppb (3) N/A 21.0 ppb (19) N/A N/A N/A 0.54 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
March 25, 2019, 5 a.m. 18.8 ppb (17) 0.3 ppb (0) N/A 19.0 ppb (18) N/A N/A N/A 0.45 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
March 25, 2019, 4 a.m. 17.9 ppb (17) 0.2 ppb (0) N/A 18.0 ppb (17) N/A N/A N/A 0.47 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
March 25, 2019, 3 a.m. 17.3 ppb (16) 0.5 ppb (0) N/A 17.0 ppb (16) N/A N/A N/A 0.42 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
March 25, 2019, 2 a.m. 10.9 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.37 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
March 25, 2019, 1 a.m. 15.5 ppb (14) 2.6 ppb (2) N/A 13.0 ppb (12) N/A N/A N/A 0.41 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
March 25, 2019, midnight 18.8 ppb (17) 4.9 ppb (5) N/A 14.0 ppb (13) N/A N/A N/A 0.5 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
March 24, 2019, 11 p.m. 17.2 ppb (16) 5.1 ppb (5) N/A 12.0 ppb (11) N/A N/A N/A 0.49 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
March 24, 2019, 10 p.m. 17.4 ppb (16) 5.2 ppb (5) N/A 12.0 ppb (11) N/A N/A N/A 0.45 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
March 24, 2019, 9 p.m. 18.8 ppb (17) 5.8 ppb (5) N/A 13.0 ppb (12) N/A N/A N/A 0.49 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
March 24, 2019, 8 p.m. 16.2 ppb (15) 5.4 ppb (5) N/A 11.0 ppb (10) N/A N/A N/A 0.67 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
March 24, 2019, 7 p.m. 19.7 ppb (18) 7.4 ppb (7) N/A 12.0 ppb (11) N/A N/A N/A 0.82 ppb (9) N/A 10.0 μg/m3 (42) 42.0
 
March 24, 2019, 6 p.m. 19.2 ppb (18) 7.5 ppb (7) N/A 12.0 ppb (11) N/A N/A N/A 0.82 ppb (9) N/A 12.0 μg/m3 (50) 50.0
 
March 24, 2019, 5 p.m. 16.3 ppb (15) 5.8 ppb (5) N/A 11.0 ppb (10) N/A N/A N/A 0.77 ppb (9) N/A 12.0 μg/m3 (50) 50.0
 
March 24, 2019, 4 p.m. 24.7 ppb (23) 9.8 ppb (9) N/A 15.0 ppb (14) N/A N/A N/A 0.87 ppb (10) N/A 11.0 μg/m3 (46) 46.0
 
March 24, 2019, 3 p.m. 39.2 ppb (36) 15.6 ppb (14) N/A 24.0 ppb (22) N/A N/A N/A 0.71 ppb (8) N/A 8.0 μg/m3 (33) 36.0
 
March 24, 2019, 2 p.m. 27.3 ppb (25) 5.8 ppb (5) N/A 22.0 ppb (20) N/A N/A N/A 0.75 ppb (8) N/A 3.0 μg/m3 (12) 25.0
 
March 24, 2019, 1 p.m. 21.6 ppb (20) 2.8 ppb (3) N/A 19.0 ppb (18) N/A N/A N/A 0.91 ppb (10) N/A 3.0 μg/m3 (12) 20.0
 
March 24, 2019, noon 17.4 ppb (16) 2.3 ppb (2) N/A 15.0 ppb (14) N/A N/A N/A 0.89 ppb (10) N/A 5.0 μg/m3 (21) 21.0
 
March 24, 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
 
March 24, 2019, 10 a.m. 14.0 ppb (13) 0.2 ppb (0) N/A 14.0 ppb (13) N/A N/A N/A 0.45 ppb (5) N/A 3.0 μg/m3 (12) 13.0
 
March 24, 2019, 9 a.m. 12.1 ppb (11) 0.0 ppb (0) N/A 12.0 ppb (11) N/A N/A N/A 0.39 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
March 24, 2019, 8 a.m. 17.1 ppb (16) 0.2 ppb (0) N/A 17.0 ppb (16) N/A N/A N/A 0.5 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
March 24, 2019, 7 a.m. 13.8 ppb (13) 0.1 ppb (0) N/A 14.0 ppb (13) N/A N/A N/A 0.41 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
March 24, 2019, 6 a.m. 13.3 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (11) N/A N/A N/A 0.39 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
March 24, 2019, 5 a.m. 18.1 ppb (17) 3.3 ppb (3) N/A 15.0 ppb (14) N/A N/A N/A 0.45 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
March 24, 2019, 4 a.m. 16.6 ppb (15) 3.2 ppb (3) N/A 13.0 ppb (12) N/A N/A N/A 0.44 ppb (5) N/A 4.0 μg/m3 (17) 17.0
 
March 24, 2019, 3 a.m. 18.4 ppb (17) 4.3 ppb (4) N/A 14.0 ppb (13) N/A N/A N/A 0.41 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
March 24, 2019, 2 a.m. 46.0 ppb (43) 11.5 ppb (11) N/A 35.0 ppb (32) N/A N/A N/A 0.44 ppb (5) N/A 6.0 μg/m3 (25) 43.0
 
March 24, 2019, 1 a.m. 24.8 ppb (23) 6.8 ppb (6) N/A 18.0 ppb (17) N/A N/A N/A 0.41 ppb (5) N/A 5.0 μg/m3 (21) 23.0
 
March 24, 2019, midnight 13.3 ppb (12) 4.6 ppb (4) N/A 9.0 ppb (8) N/A N/A N/A 0.38 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
March 23, 2019, 11 p.m. 18.7 ppb (17) 6.8 ppb (6) N/A 12.0 ppb (11) N/A N/A N/A 0.37 ppb (4) N/A 3.0 μg/m3 (12) 17.0
 
March 23, 2019, 10 p.m. 14.4 ppb (13) 5.5 ppb (5) N/A 9.0 ppb (8) N/A N/A N/A 0.37 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
March 23, 2019, 9 p.m. 16.3 ppb (15) 6.2 ppb (6) N/A 10.0 ppb (9) N/A N/A N/A 0.38 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
March 23, 2019, 8 p.m. 18.2 ppb (17) 7.9 ppb (7) N/A 10.0 ppb (9) N/A N/A N/A 0.42 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
March 23, 2019, 7 p.m. 14.6 ppb (14) 5.9 ppb (5) N/A 9.0 ppb (8) N/A N/A N/A 0.4 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
March 23, 2019, 6 p.m. 14.5 ppb (13) 5.5 ppb (5) N/A 9.0 ppb (8) N/A N/A N/A 0.37 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
March 23, 2019, 5 p.m. 11.5 ppb (11) 3.8 ppb (4) N/A 8.0 ppb (7) N/A N/A N/A 0.34 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
March 23, 2019, 4 p.m. 14.0 ppb (13) 3.8 ppb (4) N/A 10.0 ppb (9) N/A N/A N/A 0.34 ppb (4) N/A 3.0 μg/m3 (12) 13.0
 
March 23, 2019, 3 p.m. 21.9 ppb (20) 5.8 ppb (5) N/A 16.0 ppb (15) N/A N/A N/A 0.4 ppb (4) N/A 4.0 μg/m3 (17) 20.0
 
March 23, 2019, 2 p.m. 10.0 ppb (9) 0.5 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
March 23, 2019, 1 p.m. 24.5 ppb (23) 4.6 ppb (4) N/A 20.0 ppb (19) N/A N/A N/A 0.35 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
March 23, 2019, noon 18.1 ppb (17) 4.1 ppb (4) N/A 14.0 ppb (13) N/A N/A N/A 0.34 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
March 23, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (63) 63.0
 
March 23, 2019, 10 a.m. 9.0 ppb (8) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A 0.34 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
March 23, 2019, 9 a.m. 7.2 ppb (7) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A 0.33 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
March 23, 2019, 8 a.m. 7.8 ppb (7) 0.9 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.34 ppb (4) N/A 2.0 μg/m3 (8) 8.0
 
March 23, 2019, 7 a.m. 8.6 ppb (8) 1.2 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.34 ppb (4) N/A 2.0 μg/m3 (8) 8.0
 
March 23, 2019, 6 a.m. 8.5 ppb (8) 1.1 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.36 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
March 23, 2019, 5 a.m. 14.5 ppb (13) 1.2 ppb (1) N/A 13.0 ppb (12) N/A N/A N/A 0.41 ppb (5) N/A 2.0 μg/m3 (8) 13.0
 
March 23, 2019, 4 a.m. 14.0 ppb (13) 0.5 ppb (0) N/A 14.0 ppb (13) N/A N/A N/A 0.43 ppb (5) N/A 3.0 μg/m3 (12) 13.0
 
March 23, 2019, 3 a.m. 16.2 ppb (15) 1.3 ppb (1) N/A 15.0 ppb (14) N/A N/A N/A 0.44 ppb (5) N/A 3.0 μg/m3 (12) 15.0
 
March 23, 2019, 2 a.m. 14.4 ppb (13) 1.8 ppb (2) N/A 13.0 ppb (12) N/A N/A N/A 0.4 ppb (4) N/A 2.0 μg/m3 (8) 13.0
 
March 23, 2019, 1 a.m. 16.3 ppb (15) 3.4 ppb (3) N/A 13.0 ppb (12) N/A N/A N/A 0.39 ppb (4) N/A 1.0 μg/m3 (4) 15.0
 
March 23, 2019, midnight 13.8 ppb (13) 2.2 ppb (2) N/A 12.0 ppb (11) N/A N/A N/A 0.37 ppb (4) N/A 3.0 μg/m3 (12) 13.0
 
March 22, 2019, 11 p.m. 27.0 ppb (25) 9.9 ppb (9) N/A 17.0 ppb (16) N/A N/A N/A 0.42 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
March 22, 2019, 10 p.m. 37.1 ppb (34) 15.7 ppb (15) N/A 21.0 ppb (19) N/A N/A N/A 0.42 ppb (5) N/A 4.0 μg/m3 (17) 34.0
 
March 22, 2019, 9 p.m. 34.5 ppb (32) 14.3 ppb (13) N/A 20.0 ppb (19) N/A N/A N/A 0.4 ppb (4) N/A 4.0 μg/m3 (17) 32.0
 
March 22, 2019, 8 p.m. 23.0 ppb (21) 7.8 ppb (7) N/A 15.0 ppb (14) N/A N/A N/A 0.37 ppb (4) N/A 4.0 μg/m3 (17) 21.0
 
March 22, 2019, 7 p.m. 29.8 ppb (28) 10.5 ppb (10) N/A 19.0 ppb (18) N/A N/A N/A 0.38 ppb (4) N/A 4.0 μg/m3 (17) 28.0
 
March 22, 2019, 6 p.m. 22.9 ppb (21) 6.3 ppb (6) N/A 17.0 ppb (16) N/A N/A N/A 0.34 ppb (4) N/A 3.0 μg/m3 (12) 21.0
 
March 22, 2019, 5 p.m. 22.9 ppb (21) 5.7 ppb (5) N/A 17.0 ppb (16) N/A N/A N/A 0.36 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
March 22, 2019, 4 p.m. 40.1 ppb (37) 11.8 ppb (11) N/A 28.0 ppb (26) N/A N/A N/A 0.43 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
March 22, 2019, 3 p.m. 39.2 ppb (36) 10.2 ppb (9) N/A 29.0 ppb (27) N/A N/A N/A 0.45 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
March 22, 2019, 2 p.m. 34.2 ppb (32) 7.1 ppb (7) N/A 27.0 ppb (25) N/A N/A N/A 0.43 ppb (5) N/A 5.0 μg/m3 (21) 32.0
 
March 22, 2019, 1 p.m. 26.0 ppb (24) 3.4 ppb (3) N/A 23.0 ppb (21) N/A N/A N/A 0.44 ppb (5) N/A 4.0 μg/m3 (17) 24.0
 
March 22, 2019, noon 23.9 ppb (22) 3.5 ppb (3) N/A 20.0 ppb (19) N/A N/A N/A 0.41 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
March 22, 2019, 11 a.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
 
March 22, 2019, 10 a.m. 31.4 ppb (29) 5.6 ppb (5) N/A 26.0 ppb (24) N/A N/A N/A 0.48 ppb (5) N/A 6.0 μg/m3 (25) 29.0
 
March 22, 2019, 9 a.m. 16.1 ppb (15) 1.9 ppb (2) N/A 14.0 ppb (13) N/A N/A N/A 0.37 ppb (4) N/A 3.0 μg/m3 (12) 15.0
 
March 22, 2019, 8 a.m. 9.4 ppb (9) 1.6 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.3 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
March 22, 2019, 7 a.m. 9.7 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A N/A N/A 0.34 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
March 22, 2019, 6 a.m. 13.3 ppb (12) 2.6 ppb (2) N/A 11.0 ppb (10) N/A N/A N/A 0.37 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
March 22, 2019, 5 a.m. 15.3 ppb (14) 3.0 ppb (3) N/A 12.0 ppb (11) N/A N/A N/A 0.41 ppb (5) N/A 4.0 μg/m3 (17) 17.0
 
March 22, 2019, 4 a.m. 18.0 ppb (17) 4.0 ppb (4) N/A 14.0 ppb (13) N/A N/A N/A 0.41 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
March 22, 2019, 3 a.m. 16.1 ppb (15) 4.0 ppb (4) N/A 12.0 ppb (11) N/A N/A N/A 0.41 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
March 22, 2019, 2 a.m. 34.8 ppb (32) 11.7 ppb (11) N/A 23.0 ppb (21) N/A N/A N/A 0.46 ppb (5) N/A 4.0 μg/m3 (17) 32.0
 
March 22, 2019, 1 a.m. 36.8 ppb (34) 12.5 ppb (12) N/A 24.0 ppb (22) N/A N/A N/A 0.4 ppb (4) N/A 6.0 μg/m3 (25) 34.0
 
March 22, 2019, midnight 30.6 ppb (28) 14.8 ppb (14) N/A 16.0 ppb (15) N/A N/A N/A 0.39 ppb (4) N/A 6.0 μg/m3 (25) 28.0
 
March 21, 2019, 11 p.m. 25.1 ppb (23) 11.9 ppb (11) N/A 13.0 ppb (12) N/A N/A N/A 0.38 ppb (4) N/A 5.0 μg/m3 (21) 23.0
 
March 21, 2019, 10 p.m. 27.1 ppb (25) 12.6 ppb (12) N/A 14.0 ppb (13) N/A N/A N/A 0.41 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
March 21, 2019, 9 p.m. 35.5 ppb (33) 16.5 ppb (15) N/A 19.0 ppb (18) N/A N/A N/A 0.39 ppb (4) N/A 6.0 μg/m3 (25) 33.0
 
March 21, 2019, 8 p.m. 29.7 ppb (28) 12.8 ppb (12) N/A 17.0 ppb (16) N/A N/A N/A 0.38 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
March 21, 2019, 7 p.m. 38.1 ppb (35) 18.1 ppb (17) N/A 20.0 ppb (19) N/A N/A N/A 0.35 ppb (4) N/A 6.0 μg/m3 (25) 35.0
 
March 21, 2019, 6 p.m. 44.5 ppb (41) 20.5 ppb (19) N/A 24.0 ppb (22) N/A N/A N/A 0.38 ppb (4) N/A 5.0 μg/m3 (21) 41.0
 
March 21, 2019, 5 p.m. 41.9 ppb (39) 20.0 ppb (19) N/A 22.0 ppb (20) N/A N/A N/A 0.4 ppb (4) N/A 7.0 μg/m3 (29) 39.0
 
March 21, 2019, 4 p.m. 38.9 ppb (36) 16.8 ppb (16) N/A 22.0 ppb (20) N/A N/A N/A 0.54 ppb (6) N/A 8.0 μg/m3 (33) 36.0
 
March 21, 2019, 3 p.m. 55.3 ppb (51) 29.4 ppb (27) N/A 26.0 ppb (24) N/A N/A N/A 0.77 ppb (9) N/A 7.0 μg/m3 (29) 51.0
 
March 21, 2019, 2 p.m. 44.8 ppb (41) 19.4 ppb (18) N/A 25.0 ppb (23) N/A N/A N/A 0.71 ppb (8) N/A 2.0 μg/m3 (8) 41.0
 
March 21, 2019, 1 p.m. 26.7 ppb (25) 4.1 ppb (4) N/A 23.0 ppb (21) N/A N/A N/A 0.44 ppb (5) N/A 0.0 μg/m3 (0) 25.0
 
March 21, 2019, noon 21.8 ppb (20) 3.3 ppb (3) N/A 19.0 ppb (18) N/A N/A N/A 0.41 ppb (5) N/A 2.0 μg/m3 (8) 20.0
 
March 21, 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
 
March 21, 2019, 10 a.m. 12.1 ppb (11) 0.1 ppb (0) N/A 12.0 ppb (11) N/A N/A N/A 0.35 ppb (4) N/A 2.0 μg/m3 (8) 11.0
 
March 21, 2019, 9 a.m. 23.7 ppb (22) 0.8 ppb (1) N/A 23.0 ppb (21) N/A N/A N/A 0.44 ppb (5) N/A 2.0 μg/m3 (8) 22.0
 
March 21, 2019, 8 a.m. 16.3 ppb (15) 0.1 ppb (0) N/A 16.0 ppb (15) N/A N/A N/A 0.43 ppb (5) N/A 2.0 μg/m3 (8) 15.0
 
March 21, 2019, 7 a.m. 13.2 ppb (12) 0.1 ppb (0) N/A 13.0 ppb (12) N/A N/A N/A 0.42 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
March 21, 2019, 6 a.m. 16.0 ppb (15) 2.1 ppb (2) N/A 14.0 ppb (13) N/A N/A N/A 0.4 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
March 21, 2019, 5 a.m. 24.7 ppb (23) 5.3 ppb (5) N/A 19.0 ppb (18) N/A N/A N/A 0.42 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
March 21, 2019, 4 a.m. 22.0 ppb (20) 4.1 ppb (4) N/A 18.0 ppb (17) N/A N/A N/A 0.42 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
March 21, 2019, 3 a.m. 16.1 ppb (15) 3.9 ppb (4) N/A 12.0 ppb (11) N/A N/A N/A 0.39 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
March 21, 2019, 2 a.m. 15.3 ppb (14) 4.7 ppb (4) N/A 11.0 ppb (10) N/A N/A N/A 0.39 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
March 21, 2019, 1 a.m. 23.1 ppb (21) 6.8 ppb (6) N/A 16.0 ppb (15) N/A N/A N/A 0.39 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
March 21, 2019, midnight 22.0 ppb (20) 9.2 ppb (9) N/A 13.0 ppb (12) N/A N/A N/A 0.39 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
March 20, 2019, 11 p.m. 25.1 ppb (23) 10.8 ppb (10) N/A 14.0 ppb (13) N/A N/A N/A 0.38 ppb (4) N/A 5.0 μg/m3 (21) 23.0
 
March 20, 2019, 10 p.m. 24.1 ppb (22) 10.3 ppb (10) N/A 14.0 ppb (13) N/A N/A N/A 0.38 ppb (4) N/A 4.0 μg/m3 (17) 22.0
 
March 20, 2019, 9 p.m. 23.7 ppb (22) 11.0 ppb (10) N/A 13.0 ppb (12) N/A N/A N/A 0.37 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
March 20, 2019, 8 p.m. 22.3 ppb (21) 10.9 ppb (10) N/A 11.0 ppb (10) N/A N/A N/A 0.36 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
March 20, 2019, 7 p.m. 24.5 ppb (23) 11.2 ppb (10) N/A 13.0 ppb (12) N/A N/A N/A 0.35 ppb (4) N/A 5.0 μg/m3 (21) 23.0
 
March 20, 2019, 6 p.m. 32.0 ppb (30) 14.3 ppb (13) N/A 18.0 ppb (17) N/A N/A N/A 0.34 ppb (4) N/A 5.0 μg/m3 (21) 30.0
 
March 20, 2019, 5 p.m. 39.5 ppb (37) 17.5 ppb (16) N/A 22.0 ppb (20) N/A N/A N/A 0.37 ppb (4) N/A 7.0 μg/m3 (29) 37.0
 
March 20, 2019, 4 p.m. 34.5 ppb (32) 13.5 ppb (12) N/A 21.0 ppb (19) N/A N/A N/A 0.37 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
March 20, 2019, 3 p.m. 33.8 ppb (31) 12.4 ppb (11) N/A 21.0 ppb (19) N/A N/A N/A 0.36 ppb (4) N/A 5.0 μg/m3 (21) 31.0
 
March 20, 2019, 2 p.m. 30.2 ppb (28) 6.9 ppb (6) N/A 23.0 ppb (21) N/A N/A N/A 0.36 ppb (4) N/A 3.0 μg/m3 (12) 28.0
 
March 20, 2019, 1 p.m. 20.7 ppb (19) 3.5 ppb (3) N/A 17.0 ppb (16) N/A N/A N/A 0.31 ppb (3) N/A 2.0 μg/m3 (8) 19.0
 
March 20, 2019, noon 22.4 ppb (21) 7.8 ppb (7) N/A 15.0 ppb (14) N/A N/A N/A 0.3 ppb (3) N/A 1.0 μg/m3 (4) 21.0
 
March 20, 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
 
March 20, 2019, 10 a.m. 6.3 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.26 ppb (3) N/A 1.0 μg/m3 (4) 6.0
 
March 20, 2019, 9 a.m. 5.8 ppb (5) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.27 ppb (3) N/A 1.0 μg/m3 (4) 6.0
 
March 20, 2019, 8 a.m. 7.4 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.26 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
March 20, 2019, 7 a.m. 10.5 ppb (10) 0.7 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.29 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
March 20, 2019, 6 a.m. 12.3 ppb (11) 1.3 ppb (1) N/A 11.0 ppb (10) N/A N/A N/A 0.32 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
March 20, 2019, 5 a.m. 9.4 ppb (9) 2.5 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A 0.34 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
March 20, 2019, 4 a.m. 13.0 ppb (12) 3.5 ppb (3) N/A 10.0 ppb (9) N/A N/A N/A 0.35 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
March 20, 2019, 3 a.m. 12.3 ppb (11) 3.5 ppb (3) N/A 9.0 ppb (8) N/A N/A N/A 0.34 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
March 20, 2019, 2 a.m. 19.9 ppb (18) 3.9 ppb (4) N/A 16.0 ppb (15) N/A N/A N/A 0.39 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
March 20, 2019, 1 a.m. 21.4 ppb (20) 4.8 ppb (4) N/A 17.0 ppb (16) N/A N/A N/A 0.39 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
March 20, 2019, midnight 35.1 ppb (32) 8.7 ppb (8) N/A 27.0 ppb (25) N/A N/A N/A 0.4 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
March 19, 2019, 11 p.m. 22.2 ppb (21) 4.5 ppb (4) N/A 18.0 ppb (17) N/A N/A N/A 0.38 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
March 19, 2019, 10 p.m. 19.0 ppb (18) 4.5 ppb (4) N/A 15.0 ppb (14) N/A N/A N/A 0.38 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
March 19, 2019, 9 p.m. 40.9 ppb (38) 14.3 ppb (13) N/A 27.0 ppb (25) N/A N/A N/A 0.45 ppb (5) N/A 14.0 μg/m3 (54) 54.0
 
March 19, 2019, 8 p.m. 59.1 ppb (55) 27.3 ppb (25) N/A 32.0 ppb (30) N/A N/A N/A 0.55 ppb (6) N/A 22.0 μg/m3 (71) 71.0