AQSQID: 060010011

Site Name: Oakland West

Location: Oakland (Ralph Bunche), CA

Reporting: True, Located: True

Current AQI: 25.0

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
April 9, 2020, 10 p.m. 5.5 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (25) 0.26 ppb (3) N/A 1.0 μg/m3 (4) 25.0
 
April 9, 2020, 9 p.m. 6.8 ppb (6) 1.2 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (26) 0.26 ppb (3) N/A -1.0 μg/m3 (0) 26.0
 
April 9, 2020, 8 p.m. 9.9 ppb (9) 1.6 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 32.0 ppb (25) 0.26 ppb (3) N/A 0.0 μg/m3 (0) 25.0
 
April 9, 2020, 7 p.m. 5.5 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (26) 0.26 ppb (3) N/A -1.0 μg/m3 (0) 26.0
 
April 9, 2020, 6 p.m. 6.2 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) 0.3 ppb (3) N/A -3.0 μg/m3 (0) 25.0
 
April 9, 2020, 5 p.m. 4.4 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (23) 0.25 ppb (3) N/A -1.0 μg/m3 (0) 23.0
 
April 9, 2020, 4 p.m. 5.9 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (22) 0.27 ppb (3) N/A 1.0 μg/m3 (4) 22.0
 
April 9, 2020, 3 p.m. 6.6 ppb (6) 0.1 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) 0.28 ppb (3) N/A 0.0 μg/m3 (0) 21.0
 
April 9, 2020, 2 p.m. 10.4 ppb (10) 0.0 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 22.0 ppb (17) 0.32 ppb (4) N/A 1.0 μg/m3 (4) 17.0
 
April 9, 2020, 1 p.m. 6.6 ppb (6) -0.3 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) 0.27 ppb (3) N/A 0.0 μg/m3 (0) 22.0
 
April 9, 2020, noon 5.0 ppb (5) -0.7 ppb (0) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (25) 0.23 ppb (3) N/A 0.0 μg/m3 (0) 25.0
 
April 9, 2020, 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 (0) N/A
April 9, 2020, 10 a.m. 6.5 ppb (6) -0.7 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) 0.23 ppb (3) N/A -1.0 μg/m3 (0) 25.0
 
April 9, 2020, 9 a.m. 3.8 ppb (4) -0.8 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (26) 0.22 ppb (2) N/A 0.0 μg/m3 (0) 26.0
 
April 9, 2020, 8 a.m. 2.9 ppb (3) -0.8 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) 0.23 ppb (3) N/A 0.0 μg/m3 (0) 27.0
 
April 9, 2020, 7 a.m. 3.4 ppb (3) -0.8 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (26) 0.23 ppb (3) N/A 2.0 μg/m3 (8) 26.0
 
April 9, 2020, 6 a.m. 2.8 ppb (3) -0.8 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) 0.24 ppb (3) N/A 3.0 μg/m3 (12) 27.0
 
April 9, 2020, 5 a.m. 5.3 ppb (5) -0.7 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) 0.24 ppb (3) N/A 5.0 μg/m3 (21) 24.0
 
April 9, 2020, 4 a.m. 5.5 ppb (5) -0.7 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) 0.26 ppb (3) N/A 5.0 μg/m3 (21) 25.0
 
April 9, 2020, 3 a.m. 3.1 ppb (3) -0.7 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) 0.24 ppb (3) N/A 0.0 μg/m3 (0) 27.0
 
April 9, 2020, 2 a.m. 3.5 ppb (3) -0.7 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) 0.24 ppb (3) N/A 1.0 μg/m3 (4) 27.0
 
April 9, 2020, 1 a.m. 3.7 ppb (3) -0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) 0.24 ppb (3) N/A 4.0 μg/m3 (17) 27.0
 
April 9, 2020, midnight 4.2 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) 0.24 ppb (3) N/A 5.0 μg/m3 (21) 27.0
 
April 8, 2020, 11 p.m. 5.5 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (26) 0.26 ppb (3) N/A 3.0 μg/m3 (12) 26.0
 
April 8, 2020, 10 p.m. 2.9 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (27) 0.25 ppb (3) N/A 4.0 μg/m3 (17) 27.0
 
April 8, 2020, 9 p.m. 4.4 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (26) 0.25 ppb (3) N/A 4.0 μg/m3 (17) 26.0
 
April 8, 2020, 8 p.m. 4.6 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) 0.26 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
April 8, 2020, 7 p.m. 5.9 ppb (5) 0.4 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) 0.25 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 8, 2020, 6 p.m. 4.1 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (25) 0.24 ppb (3) N/A 3.0 μg/m3 (12) 25.0
 
April 8, 2020, 5 p.m. 4.5 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (23) 0.22 ppb (2) N/A 2.0 μg/m3 (8) 23.0
 
April 8, 2020, 4 p.m. 10.2 ppb (9) 1.3 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 24.0 ppb (18) 0.24 ppb (3) N/A 3.0 μg/m3 (12) 18.0
 
April 8, 2020, 3 p.m. 6.5 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (18) 0.23 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
April 8, 2020, 2 p.m. 11.1 ppb (10) -0.2 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 20.0 ppb (15) 0.24 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
April 8, 2020, 1 p.m. 10.1 ppb (9) -0.1 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 22.0 ppb (17) 0.23 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
April 8, 2020, noon 8.8 ppb (8) -0.7 ppb (0) N/A 9.0 ppb (8) N/A N/A 22.0 ppb (17) 0.21 ppb (2) N/A 1.0 μg/m3 (4) 17.0
 
April 8, 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
 
April 8, 2020, 10 a.m. 9.8 ppb (9) -0.4 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 16.0 ppb (12) 0.29 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
April 8, 2020, 9 a.m. 16.5 ppb (15) -0.3 ppb (0) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 10.0 ppb (8) 0.39 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
April 8, 2020, 8 a.m. 19.5 ppb (18) -0.1 ppb (0) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 7.0 ppb (5) 0.41 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
April 8, 2020, 7 a.m. 14.6 ppb (14) -0.4 ppb (0) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 15.0 ppb (12) 0.38 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
April 8, 2020, 6 a.m. 11.5 ppb (11) -0.5 ppb (0) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 24.0 ppb (18) 0.3 ppb (3) N/A 2.0 μg/m3 (8) 18.0
 
April 8, 2020, 5 a.m. 7.1 ppb (7) -0.4 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (24) 0.23 ppb (3) N/A 2.0 μg/m3 (8) 24.0
 
April 8, 2020, 4 a.m. 2.9 ppb (3) -0.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (28) 0.24 ppb (3) N/A 3.0 μg/m3 (12) 28.0
 
April 8, 2020, 3 a.m. 4.4 ppb (4) -0.6 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 37.0 ppb (28) 0.24 ppb (3) N/A 0.0 μg/m3 (0) 28.0
 
April 8, 2020, 2 a.m. 3.9 ppb (4) -0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (29) 0.23 ppb (3) N/A -2.0 μg/m3 (0) 29.0
 
April 8, 2020, 1 a.m. 17.8 ppb (16) 2.5 ppb (2) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 27.0 ppb (21) 0.24 ppb (3) N/A 1.0 μg/m3 (4) 21.0
 
April 8, 2020, midnight 10.7 ppb (10) 1.5 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 36.0 ppb (28) 0.21 ppb (2) N/A 4.0 μg/m3 (17) 28.0
 
April 7, 2020, 11 p.m. 5.1 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 41.0 ppb (32) 0.21 ppb (2) N/A 4.0 μg/m3 (17) 32.0
 
April 7, 2020, 10 p.m. 5.1 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 42.0 ppb (32) 0.23 ppb (3) N/A 2.0 μg/m3 (8) 32.0
 
April 7, 2020, 9 p.m. 4.1 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 43.0 ppb (33) 0.2 ppb (2) N/A 1.0 μg/m3 (4) 33.0
 
April 7, 2020, 8 p.m. 5.5 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 40.0 ppb (31) 0.21 ppb (2) N/A 5.0 μg/m3 (21) 31.0
 
April 7, 2020, 7 p.m. 8.0 ppb (7) 1.4 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 35.0 ppb (27) 0.26 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
April 7, 2020, 6 p.m. 11.3 ppb (10) 2.8 ppb (3) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 30.0 ppb (23) 0.27 ppb (3) N/A 5.0 μg/m3 (21) 23.0
 
April 7, 2020, 5 p.m. 11.4 ppb (11) 2.7 ppb (3) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 28.0 ppb (22) 0.26 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
April 7, 2020, 4 p.m. 17.2 ppb (16) 4.7 ppb (4) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 24.0 ppb (18) 0.29 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
April 7, 2020, 3 p.m. 29.2 ppb (27) 9.7 ppb (9) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 15.0 ppb (12) 0.46 ppb (5) N/A 6.0 μg/m3 (25) 27.0
 
April 7, 2020, 2 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
 
April 7, 2020, 1 p.m. 37.5 ppb (35) 13.7 ppb (13) N/A 24.0 ppb (22) N/A 1.0 ppb (1) 2.0 ppb (2) 0.74 ppb (8) N/A 6.0 μg/m3 (25) 35.0
 
April 7, 2020, noon 35.0 ppb (32) 14.0 ppb (13) N/A 21.0 ppb (19) N/A N/A 0.0 ppb (0) 0.83 ppb (9) N/A 1.0 μg/m3 (4) 32.0
 
April 7, 2020, 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
 
April 7, 2020, 10 a.m. 17.2 ppb (16) 0.5 ppb (0) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 6.0 ppb (5) 0.57 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
April 7, 2020, 9 a.m. 23.1 ppb (21) 3.7 ppb (3) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 2.0 ppb (2) 0.68 ppb (8) N/A 9.0 μg/m3 (38) 38.0
 
April 7, 2020, 8 a.m. 29.7 ppb (28) 9.5 ppb (9) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 1.0 ppb (1) 0.8 ppb (9) N/A 6.0 μg/m3 (25) 28.0
 
April 7, 2020, 7 a.m. 26.7 ppb (25) 5.3 ppb (5) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 1.0 ppb (1) 0.81 ppb (9) N/A 9.0 μg/m3 (38) 38.0
 
April 7, 2020, 6 a.m. 29.4 ppb (27) 4.9 ppb (5) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 1.0 ppb (1) 0.84 ppb (9) N/A 9.0 μg/m3 (38) 38.0
 
April 7, 2020, 5 a.m. 31.3 ppb (29) 4.7 ppb (4) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 2.0 ppb (2) 0.83 ppb (9) N/A 8.0 μg/m3 (33) 33.0
 
April 7, 2020, 4 a.m. 31.0 ppb (29) 4.6 ppb (4) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 3.0 ppb (2) 0.9 ppb (10) N/A 6.0 μg/m3 (25) 29.0
 
April 7, 2020, 3 a.m. 19.8 ppb (18) 0.2 ppb (0) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 13.0 ppb (10) 0.65 ppb (7) N/A 6.0 μg/m3 (25) 25.0
 
April 7, 2020, 2 a.m. 12.2 ppb (11) 0.0 ppb (0) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 26.0 ppb (20) 0.54 ppb (6) N/A 1.0 μg/m3 (4) 20.0
 
April 7, 2020, 1 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 32.0 ppb (25) 0.53 ppb (6) N/A 2.0 μg/m3 (8) 25.0
 
April 7, 2020, midnight 9.8 ppb (9) 0.4 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 33.0 ppb (25) 0.5 ppb (6) N/A 3.0 μg/m3 (12) 25.0
 
April 6, 2020, 11 p.m. 5.3 ppb (5) -0.2 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (28) 0.48 ppb (5) N/A -1.0 μg/m3 (0) 28.0
 
April 6, 2020, 10 p.m. 4.8 ppb (4) -0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (28) 0.47 ppb (5) N/A 1.0 μg/m3 (4) 28.0
 
April 6, 2020, 9 p.m. 6.3 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (27) 0.48 ppb (5) N/A 4.0 μg/m3 (17) 27.0
 
April 6, 2020, 8 p.m. 6.4 ppb (6) 0.1 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (26) 0.46 ppb (5) N/A 5.0 μg/m3 (21) 26.0
 
April 6, 2020, 7 p.m. 4.7 ppb (4) 0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (27) 0.45 ppb (5) N/A 4.0 μg/m3 (17) 27.0
 
April 6, 2020, 6 p.m. 5.6 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (23) 0.47 ppb (5) N/A 3.0 μg/m3 (12) 23.0
 
April 6, 2020, 5 p.m. 4.8 ppb (4) 0.3 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) 0.44 ppb (5) N/A 1.0 μg/m3 (4) 25.0
 
April 6, 2020, 4 p.m. 14.3 ppb (13) 2.1 ppb (2) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 24.0 ppb (18) 0.51 ppb (6) N/A 1.0 μg/m3 (4) 18.0
 
April 6, 2020, 3 p.m. 34.1 ppb (32) 9.8 ppb (9) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 10.0 ppb (8) 0.69 ppb (8) N/A 4.0 μg/m3 (17) 32.0
 
April 6, 2020, 2 p.m. 46.3 ppb (43) 18.4 ppb (17) N/A 28.0 ppb (26) N/A 0.0 ppb (0) 3.0 ppb (2) 0.92 ppb (10) N/A 3.0 μg/m3 (12) 43.0
 
April 6, 2020, 1 p.m. 38.0 ppb (35) 11.9 ppb (11) N/A 26.0 ppb (24) N/A 0.0 ppb (0) 1.0 ppb (1) 0.94 ppb (10) N/A 2.0 μg/m3 (8) 35.0
 
April 6, 2020, noon 30.3 ppb (28) 6.5 ppb (6) N/A 24.0 ppb (22) N/A N/A 1.0 ppb (1) 0.72 ppb (8) N/A 1.0 μg/m3 (4) 28.0
 
April 6, 2020, 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
 
April 6, 2020, 10 a.m. 14.3 ppb (13) -0.3 ppb (0) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 9.0 ppb (7) 0.58 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
April 6, 2020, 9 a.m. 15.6 ppb (14) 1.0 ppb (1) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 11.0 ppb (8) 0.61 ppb (7) N/A 2.0 μg/m3 (8) 14.0
 
April 6, 2020, 8 a.m. 12.6 ppb (12) -0.4 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 15.0 ppb (12) 0.58 ppb (6) N/A 1.0 μg/m3 (4) 12.0
 
April 6, 2020, 7 a.m. 10.5 ppb (10) -0.5 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 24.0 ppb (18) 0.56 ppb (6) N/A -2.0 μg/m3 (0) 18.0
 
April 6, 2020, 6 a.m. 5.1 ppb (5) -0.6 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (28) 0.48 ppb (5) N/A 3.0 μg/m3 (12) 28.0
 
April 6, 2020, 5 a.m. 3.3 ppb (3) -0.6 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (28) 0.43 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
April 6, 2020, 4 a.m. 2.8 ppb (3) -0.7 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (30) 0.42 ppb (5) N/A 2.0 μg/m3 (8) 30.0
 
April 6, 2020, 3 a.m. 2.8 ppb (3) -0.6 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (30) 0.42 ppb (5) N/A 0.0 μg/m3 (0) 30.0
 
April 6, 2020, 2 a.m. 3.7 ppb (3) -0.6 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (28) 0.43 ppb (5) N/A 2.0 μg/m3 (8) 28.0
 
April 6, 2020, 1 a.m. 5.6 ppb (5) -0.2 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (27) 0.44 ppb (5) N/A 0.0 μg/m3 (0) 27.0
 
April 6, 2020, midnight 4.9 ppb (5) -0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 37.0 ppb (28) 0.42 ppb (5) N/A -2.0 μg/m3 (0) 28.0
 
April 5, 2020, 11 p.m. 1.7 ppb (2) -0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) 0.42 ppb (5) N/A -2.0 μg/m3 (0) 30.0
 
April 5, 2020, 10 p.m. 1.4 ppb (1) -0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) 0.43 ppb (5) N/A -1.0 μg/m3 (0) 30.0
 
April 5, 2020, 9 p.m. 0.6 ppb (1) -0.6 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) 0.43 ppb (5) N/A 0.0 μg/m3 (0) 30.0
 
April 5, 2020, 8 p.m. 0.8 ppb (1) -0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) 0.43 ppb (5) N/A -1.0 μg/m3 (0) 28.0
 
April 5, 2020, 7 p.m. 1.0 ppb (1) -0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (28) 0.44 ppb (5) N/A -2.0 μg/m3 (0) 28.0
 
April 5, 2020, 6 p.m. 3.8 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (26) 0.46 ppb (5) N/A 0.0 μg/m3 (0) 26.0
 
April 5, 2020, 5 p.m. 6.6 ppb (6) -0.4 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) 0.46 ppb (5) N/A 2.0 μg/m3 (8) 24.0
 
April 5, 2020, 4 p.m. 3.9 ppb (4) -0.5 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) 0.44 ppb (5) N/A 1.0 μg/m3 (4) 27.0
 
April 5, 2020, 3 p.m. 1.7 ppb (2) -0.6 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.43 ppb (5) N/A -3.0 μg/m3 (0) 26.0
 
April 5, 2020, 2 p.m. 1.5 ppb (1) -0.7 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.44 ppb (5) N/A -3.0 μg/m3 (0) 23.0
 
April 5, 2020, 1 p.m. 1.6 ppb (1) -0.7 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) 0.44 ppb (5) N/A 1.0 μg/m3 (4) 24.0
 
April 5, 2020, noon 1.0 ppb (1) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) 0.43 ppb (5) N/A 3.0 μg/m3 (12) 26.0
 
April 5, 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
 
April 5, 2020, 10 a.m. 0.6 ppb (1) -0.8 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) 0.44 ppb (5) N/A 2.0 μg/m3 (8) 28.0
 
April 5, 2020, 9 a.m. 1.4 ppb (1) -0.8 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.43 ppb (5) N/A 1.0 μg/m3 (4) 27.0
 
April 5, 2020, 8 a.m. 4.2 ppb (4) -0.7 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (23) 0.45 ppb (5) N/A 1.0 μg/m3 (4) 23.0
 
April 5, 2020, 7 a.m. 4.9 ppb (5) -0.8 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (23) 0.45 ppb (5) N/A 1.0 μg/m3 (4) 23.0
 
April 5, 2020, 6 a.m. 5.9 ppb (5) -0.7 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) 0.45 ppb (5) N/A 3.0 μg/m3 (12) 22.0
 
April 5, 2020, 5 a.m. 9.4 ppb (9) -0.7 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 24.0 ppb (18) 0.46 ppb (5) N/A 1.0 μg/m3 (4) 18.0
 
April 5, 2020, 4 a.m. 8.8 ppb (8) -0.5 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 25.0 ppb (19) 0.46 ppb (5) N/A 2.0 μg/m3 (8) 19.0
 
April 5, 2020, 3 a.m. 7.6 ppb (7) -0.7 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 25.0 ppb (19) 0.47 ppb (5) N/A 3.0 μg/m3 (12) 19.0
 
April 5, 2020, 2 a.m. 6.4 ppb (6) -0.6 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (20) 0.46 ppb (5) N/A -1.0 μg/m3 (0) 20.0
 
April 5, 2020, 1 a.m. 7.6 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 24.0 ppb (18) 0.45 ppb (5) N/A 0.0 μg/m3 (0) 18.0
 
April 5, 2020, midnight 5.3 ppb (5) -0.2 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) 0.46 ppb (5) N/A 0.0 μg/m3 (0) 19.0
 
April 4, 2020, 11 p.m. 2.7 ppb (3) -0.4 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (22) 0.47 ppb (5) N/A -3.0 μg/m3 (0) 22.0
 
April 4, 2020, 10 p.m. 1.9 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) 0.47 ppb (5) N/A -3.0 μg/m3 (0) 22.0
 
April 4, 2020, 9 p.m. 2.0 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.46 ppb (5) N/A -2.0 μg/m3 (0) 23.0
 
April 4, 2020, 8 p.m. 1.4 ppb (1) -0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) 0.46 ppb (5) N/A -1.0 μg/m3 (0) 24.0
 
April 4, 2020, 7 p.m. 3.1 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (23) 0.47 ppb (5) N/A -1.0 μg/m3 (0) 23.0
 
April 4, 2020, 6 p.m. 3.8 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) 0.46 ppb (5) N/A 0.0 μg/m3 (0) 24.0
 
April 4, 2020, 5 p.m. 3.0 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (24) 0.45 ppb (5) N/A 2.0 μg/m3 (8) 24.0
 
April 4, 2020, 4 p.m. 3.7 ppb (3) -0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (23) 0.45 ppb (5) N/A 2.0 μg/m3 (8) 23.0
 
April 4, 2020, 3 p.m. 3.6 ppb (3) -0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) 0.43 ppb (5) N/A -2.0 μg/m3 (0) 25.0
 
April 4, 2020, 2 p.m. 5.6 ppb (5) -0.6 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (23) 0.44 ppb (5) N/A -3.0 μg/m3 (0) 23.0
 
April 4, 2020, 1 p.m. 4.7 ppb (4) -0.7 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) 0.42 ppb (5) N/A -2.0 μg/m3 (0) 24.0
 
April 4, 2020, noon 4.7 ppb (4) -0.7 ppb (0) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (24) 0.42 ppb (5) N/A 0.0 μg/m3 (0) 24.0
 
April 4, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) N/A
April 4, 2020, 10 a.m. 11.8 ppb (11) -0.7 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 22.0 ppb (17) 0.43 ppb (5) N/A 0.0 μg/m3 (0) 17.0
 
April 4, 2020, 9 a.m. 10.4 ppb (10) -0.7 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 21.0 ppb (16) 0.44 ppb (5) N/A 1.0 μg/m3 (4) 16.0
 
April 4, 2020, 8 a.m. 12.8 ppb (12) -0.6 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 16.0 ppb (12) 0.54 ppb (6) N/A 3.0 μg/m3 (12) 12.0
 
April 4, 2020, 7 a.m. 13.5 ppb (12) -0.3 ppb (0) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 15.0 ppb (12) 0.56 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
April 4, 2020, 6 a.m. 8.5 ppb (8) -0.6 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 24.0 ppb (18) 0.49 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
April 4, 2020, 5 a.m. 4.4 ppb (4) -0.7 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (22) 0.46 ppb (5) N/A 3.0 μg/m3 (12) 22.0
 
April 4, 2020, 4 a.m. 2.9 ppb (3) -0.6 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (25) 0.47 ppb (5) N/A 2.0 μg/m3 (8) 25.0
 
April 4, 2020, 3 a.m. 3.7 ppb (3) -0.7 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) 0.46 ppb (5) N/A 3.0 μg/m3 (12) 24.0
 
April 4, 2020, 2 a.m. 5.2 ppb (5) -0.6 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (23) 0.45 ppb (5) N/A 2.0 μg/m3 (8) 23.0
 
April 4, 2020, 1 a.m. 6.5 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) 0.43 ppb (5) N/A 4.0 μg/m3 (17) 24.0
 
April 4, 2020, midnight 18.4 ppb (17) 5.9 ppb (5) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 25.0 ppb (19) 0.47 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
April 3, 2020, 11 p.m. 12.0 ppb (11) 3.8 ppb (4) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (23) 0.42 ppb (5) N/A 5.0 μg/m3 (21) 23.0
 
April 3, 2020, 10 p.m. 4.4 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (26) 0.42 ppb (5) N/A 3.0 μg/m3 (12) 26.0
 
April 3, 2020, 9 p.m. 4.6 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) 0.43 ppb (5) N/A 1.0 μg/m3 (4) 27.0
 
April 3, 2020, 8 p.m. 4.3 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (28) 0.41 ppb (5) N/A 2.0 μg/m3 (8) 28.0
 
April 3, 2020, 7 p.m. 6.3 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 34.0 ppb (26) 0.41 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
April 3, 2020, 6 p.m. 8.5 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 31.0 ppb (24) 0.43 ppb (5) N/A 4.0 μg/m3 (17) 24.0
 
April 3, 2020, 5 p.m. 10.6 ppb (10) 2.7 ppb (3) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 28.0 ppb (22) 0.46 ppb (5) N/A 5.0 μg/m3 (21) 22.0
 
April 3, 2020, 4 p.m. 12.1 ppb (11) 2.8 ppb (3) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 26.0 ppb (20) 0.45 ppb (5) N/A 3.0 μg/m3 (12) 20.0
 
April 3, 2020, 3 p.m. 20.1 ppb (19) 4.7 ppb (4) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 19.0 ppb (15) 0.56 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
April 3, 2020, 2 p.m. 40.8 ppb (38) 16.5 ppb (15) N/A 24.0 ppb (22) N/A 1.0 ppb (1) 5.0 ppb (4) 0.83 ppb (9) N/A 5.0 μg/m3 (21) 38.0
 
April 3, 2020, 1 p.m. 33.3 ppb (31) 8.7 ppb (8) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 2.0 ppb (2) 0.74 ppb (8) N/A 4.0 μg/m3 (17) 31.0
 
April 3, 2020, noon 22.9 ppb (21) 1.5 ppb (1) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 5.0 ppb (4) 0.62 ppb (7) N/A 6.0 μg/m3 (25) 25.0
 
April 3, 2020, 11 a.m. 15.4 ppb (14) -0.3 ppb (0) N/A 16.0 ppb (15) N/A N/A 11.0 ppb (8) 0.5 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
April 3, 2020, 10 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
 
April 3, 2020, 9 a.m. 18.2 ppb (17) 0.5 ppb (0) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 9.0 ppb (7) 0.59 ppb (7) N/A 5.0 μg/m3 (21) 21.0
 
April 3, 2020, 8 a.m. 14.9 ppb (14) -0.4 ppb (0) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 13.0 ppb (10) 0.58 ppb (6) N/A 4.0 μg/m3 (17) 17.0
 
April 3, 2020, 7 a.m. 18.5 ppb (17) -0.4 ppb (0) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 13.0 ppb (10) 0.56 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
April 3, 2020, 6 a.m. 13.3 ppb (12) -0.6 ppb (0) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 21.0 ppb (16) 0.49 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
April 3, 2020, 5 a.m. 4.2 ppb (4) -0.6 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (25) 0.45 ppb (5) N/A 3.0 μg/m3 (12) 25.0
 
April 3, 2020, 4 a.m. 5.1 ppb (5) -0.6 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) 0.44 ppb (5) N/A 4.0 μg/m3 (17) 25.0
 
April 3, 2020, 3 a.m. 7.2 ppb (7) -0.6 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (23) 0.45 ppb (5) N/A 3.0 μg/m3 (12) 23.0
 
April 3, 2020, 2 a.m. 7.0 ppb (6) -0.4 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (23) 0.44 ppb (5) N/A 0.0 μg/m3 (0) 23.0
 
April 3, 2020, 1 a.m. 12.1 ppb (11) 2.6 ppb (2) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 27.0 ppb (21) 0.44 ppb (5) N/A 3.0 μg/m3 (12) 21.0
 
April 3, 2020, midnight 19.6 ppb (18) 5.2 ppb (5) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 24.0 ppb (18) 0.43 ppb (5) N/A 3.0 μg/m3 (12) 18.0
 
April 2, 2020, 11 p.m. 4.1 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) 0.43 ppb (5) N/A 2.0 μg/m3 (8) 27.0