AQSQID: 060950004

Site Name: Vallejo

Location: Vallejo, CA

Reporting: True, Located: True

Current AQI: 50.0

Vallejo CA, US: 38.102507, -122.237976

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 22, 2019, 7 p.m. 9.8 ppb (9) 3.3 ppb (3) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 21.0 ppb (16) 0.14 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 22, 2019, 6 p.m. 9.1 ppb (8) 3.1 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 20.0 ppb (15) 0.14 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 22, 2019, 5 p.m. 8.8 ppb (8) 3.5 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 19.0 ppb (15) 0.14 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 22, 2019, 4 p.m. 5.9 ppb (5) 2.3 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 17.0 ppb (13) 0.16 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 22, 2019, 3 p.m. 6.8 ppb (6) 1.8 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 15.0 ppb (12) 0.2 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 22, 2019, 2 p.m. 18.1 ppb (17) 8.6 ppb (8) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 4.0 ppb (3) 0.41 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 22, 2019, 1 p.m. 18.0 ppb (17) 7.3 ppb (7) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 1.0 ppb (1) 0.41 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 22, 2019, noon 13.6 ppb (13) 3.1 ppb (3) N/A 11.0 ppb (10) N/A N/A 2.0 ppb (2) 0.32 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 22, 2019, 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
 
Sept. 22, 2019, 10 a.m. 6.6 ppb (6) 0.1 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (10) 0.19 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 22, 2019, 9 a.m. 8.5 ppb (8) 0.5 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 11.0 ppb (8) 0.22 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 22, 2019, 8 a.m. 7.8 ppb (7) 0.3 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 12.0 ppb (9) 0.19 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 22, 2019, 7 a.m. 9.3 ppb (9) 0.4 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 12.0 ppb (9) 0.22 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 22, 2019, 6 a.m. 16.6 ppb (15) 0.7 ppb (1) N/A 16.0 ppb (15) N/A 1.0 ppb (1) 8.0 ppb (6) 0.43 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 22, 2019, 5 a.m. 22.5 ppb (21) 2.3 ppb (2) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 5.0 ppb (4) 0.56 ppb (6) N/A 13.0 μg/m3 (52) 52.0
 
Sept. 22, 2019, 4 a.m. 9.3 ppb (9) 0.3 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 21.0 ppb (16) 0.21 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 22, 2019, 3 a.m. 6.6 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 22, 2019, 2 a.m. 2.8 ppb (3) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) 0.14 ppb (2) N/A 2.0 μg/m3 (8) 24.0
 
Sept. 22, 2019, 1 a.m. 2.2 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) 0.09 ppb (1) N/A 2.0 μg/m3 (8) 25.0
 
Sept. 22, 2019, midnight 2.1 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) 0.07 ppb (1) N/A 3.0 μg/m3 (12) 31.0
 
Sept. 21, 2019, 11 p.m. 3.3 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 49.0 ppb (38) 0.07 ppb (1) N/A 4.0 μg/m3 (17) 38.0
 
Sept. 21, 2019, 10 p.m. 3.5 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 48.0 ppb (37) 0.07 ppb (1) N/A 5.0 μg/m3 (21) 37.0
 
Sept. 21, 2019, 9 p.m. 3.7 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 50.0 ppb (38) 0.08 ppb (1) N/A 7.0 μg/m3 (29) 38.0
 
Sept. 21, 2019, 8 p.m. 4.6 ppb (4) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 46.0 ppb (35) 0.08 ppb (1) N/A 8.0 μg/m3 (33) 35.0
 
Sept. 21, 2019, 7 p.m. 7.4 ppb (7) 1.8 ppb (2) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 39.0 ppb (30) 0.11 ppb (1) N/A 7.0 μg/m3 (29) 30.0
 
Sept. 21, 2019, 6 p.m. 7.5 ppb (7) 2.3 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 31.0 ppb (24) 0.13 ppb (1) N/A 5.0 μg/m3 (21) 24.0
 
Sept. 21, 2019, 5 p.m. 12.0 ppb (11) 4.3 ppb (4) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 22.0 ppb (17) 0.17 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 21, 2019, 4 p.m. 16.0 ppb (15) 7.0 ppb (6) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 14.0 ppb (11) 0.26 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 21, 2019, 3 p.m. 37.4 ppb (35) 23.2 ppb (21) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 6.0 ppb (5) 0.62 ppb (7) N/A 7.0 μg/m3 (29) 35.0
 
Sept. 21, 2019, 2 p.m. 47.0 ppb (44) 32.8 ppb (30) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 1.0 ppb (1) 0.77 ppb (9) N/A 8.0 μg/m3 (33) 44.0
 
Sept. 21, 2019, 1 p.m. 35.2 ppb (33) 22.7 ppb (21) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 1.0 ppb (1) 0.6 ppb (7) N/A 7.0 μg/m3 (29) 33.0
 
Sept. 21, 2019, noon 27.0 ppb (25) 15.0 ppb (14) N/A 12.0 ppb (11) N/A N/A 1.0 ppb (1) 0.48 ppb (5) N/A 5.0 μg/m3 (21) 25.0
 
Sept. 21, 2019, 11 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
 
Sept. 21, 2019, 10 a.m. 29.7 ppb (28) 14.6 ppb (14) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 1.0 ppb (1) 0.47 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 21, 2019, 9 a.m. 29.7 ppb (28) 14.7 ppb (14) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 1.0 ppb (1) 0.67 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 21, 2019, 8 a.m. 29.9 ppb (28) 13.3 ppb (12) N/A 17.0 ppb (16) N/A 1.0 ppb (1) 1.0 ppb (1) 0.72 ppb (8) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 21, 2019, 7 a.m. 31.6 ppb (29) 13.6 ppb (13) N/A 18.0 ppb (17) N/A 1.0 ppb (1) 1.0 ppb (1) 0.64 ppb (7) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 21, 2019, 6 a.m. 25.7 ppb (24) 7.0 ppb (6) N/A 19.0 ppb (18) N/A 1.0 ppb (1) 1.0 ppb (1) 0.57 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 21, 2019, 5 a.m. 13.9 ppb (13) 1.5 ppb (1) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 9.0 ppb (7) 0.31 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 21, 2019, 4 a.m. 7.5 ppb (7) 1.4 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 17.0 ppb (13) 0.22 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 21, 2019, 3 a.m. 4.6 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (17) 0.17 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 21, 2019, 2 a.m. 2.1 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (21) 0.11 ppb (1) N/A 4.0 μg/m3 (17) 21.0
 
Sept. 21, 2019, 1 a.m. 4.1 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) 0.1 ppb (1) N/A 5.0 μg/m3 (21) 25.0
 
Sept. 21, 2019, midnight 3.8 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 42.0 ppb (32) 0.09 ppb (1) N/A 5.0 μg/m3 (21) 32.0
 
Sept. 20, 2019, 11 p.m. 5.4 ppb (5) 1.3 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 46.0 ppb (35) 0.08 ppb (1) N/A 3.0 μg/m3 (12) 35.0
 
Sept. 20, 2019, 10 p.m. 4.8 ppb (4) 1.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 46.0 ppb (35) 0.06 ppb (1) N/A 3.0 μg/m3 (12) 35.0
 
Sept. 20, 2019, 9 p.m. 5.3 ppb (5) 1.3 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 47.0 ppb (36) 0.06 ppb (1) N/A 5.0 μg/m3 (21) 36.0
 
Sept. 20, 2019, 8 p.m. 5.0 ppb (5) 1.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 41.0 ppb (32) 0.06 ppb (1) N/A 4.0 μg/m3 (17) 32.0
 
Sept. 20, 2019, 7 p.m. 4.6 ppb (4) 1.1 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (28) 0.07 ppb (1) N/A 4.0 μg/m3 (17) 28.0
 
Sept. 20, 2019, 6 p.m. 7.1 ppb (7) 2.7 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (22) 0.11 ppb (1) N/A 3.0 μg/m3 (12) 22.0
 
Sept. 20, 2019, 5 p.m. 7.5 ppb (7) 2.7 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 22.0 ppb (17) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 20, 2019, 4 p.m. 9.0 ppb (8) 4.0 ppb (4) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 17.0 ppb (13) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 20, 2019, 3 p.m. 36.0 ppb (33) 23.2 ppb (21) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 7.0 ppb (5) 0.55 ppb (6) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 20, 2019, 2 p.m. 50.9 ppb (47) 35.5 ppb (33) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 2.0 ppb (2) 0.8 ppb (9) N/A 8.0 μg/m3 (33) 47.0
 
Sept. 20, 2019, 1 p.m. 47.0 ppb (44) 33.3 ppb (31) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 1.0 ppb (1) 0.79 ppb (9) N/A 5.0 μg/m3 (21) 44.0
 
Sept. 20, 2019, noon 35.7 ppb (33) 24.8 ppb (23) N/A 11.0 ppb (10) N/A N/A 1.0 ppb (1) 0.6 ppb (7) N/A 5.0 μg/m3 (21) 33.0
 
Sept. 20, 2019, 11 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
 
Sept. 20, 2019, 10 a.m. 25.2 ppb (23) 10.7 ppb (10) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 1.0 ppb (1) 0.46 ppb (5) N/A 5.0 μg/m3 (21) 23.0
 
Sept. 20, 2019, 9 a.m. 23.8 ppb (22) 7.7 ppb (7) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 1.0 ppb (1) 0.51 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 20, 2019, 8 a.m. 21.0 ppb (19) 4.7 ppb (4) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 1.0 ppb (1) 0.49 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 20, 2019, 7 a.m. 22.5 ppb (21) 4.2 ppb (4) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 2.0 ppb (2) 0.45 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 20, 2019, 6 a.m. 16.9 ppb (16) 2.5 ppb (2) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 7.0 ppb (5) 0.37 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 20, 2019, 5 a.m. 6.0 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 20.0 ppb (15) 0.16 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 20, 2019, 4 a.m. 5.0 ppb (5) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (19) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 20, 2019, 3 a.m. 4.2 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (21) 0.13 ppb (1) N/A 4.0 μg/m3 (17) 21.0
 
Sept. 20, 2019, 2 a.m. 4.1 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (21) 0.12 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 20, 2019, 1 a.m. 2.3 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) 0.09 ppb (1) N/A 4.0 μg/m3 (17) 24.0
 
Sept. 20, 2019, midnight 2.5 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) 0.08 ppb (1) N/A 3.0 μg/m3 (12) 30.0
 
Sept. 19, 2019, 11 p.m. 3.5 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 45.0 ppb (35) 0.09 ppb (1) N/A 4.0 μg/m3 (17) 35.0
 
Sept. 19, 2019, 10 p.m. 4.5 ppb (4) 1.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 42.0 ppb (32) 0.1 ppb (1) N/A 4.0 μg/m3 (17) 32.0
 
Sept. 19, 2019, 9 p.m. 3.6 ppb (3) 1.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 38.0 ppb (29) 0.07 ppb (1) N/A 5.0 μg/m3 (21) 29.0
 
Sept. 19, 2019, 8 p.m. 3.5 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 34.0 ppb (26) 0.09 ppb (1) N/A 6.0 μg/m3 (25) 26.0
 
Sept. 19, 2019, 7 p.m. 4.3 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 30.0 ppb (23) 0.09 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 19, 2019, 6 p.m. 4.0 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) 0.1 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 19, 2019, 5 p.m. 5.7 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 19, 2019, 4 p.m. 6.2 ppb (6) 2.6 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 18.0 ppb (14) 0.17 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 19, 2019, 3 p.m. 18.9 ppb (18) 8.4 ppb (8) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 11.0 ppb (8) 0.31 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 19, 2019, 2 p.m. 55.8 ppb (52) 42.0 ppb (39) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 1.0 ppb (1) 0.79 ppb (9) N/A 6.0 μg/m3 (25) 52.0
 
Sept. 19, 2019, 1 p.m. 54.7 ppb (51) 41.6 ppb (39) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 1.0 ppb (1) 0.67 ppb (7) N/A 5.0 μg/m3 (21) 51.0
 
Sept. 19, 2019, noon 16.7 ppb (15) 6.6 ppb (6) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 4.0 ppb (3) 0.33 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 19, 2019, 11 a.m. 3.4 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 14.0 ppb (11) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 19, 2019, 10 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
 
Sept. 19, 2019, 9 a.m. 1.6 ppb (1) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (15) 0.12 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 19, 2019, 8 a.m. 2.6 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (15) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 15.0
 
Sept. 19, 2019, 7 a.m. 2.6 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (15) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 15.0
 
Sept. 19, 2019, 6 a.m. 2.5 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (16) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 19, 2019, 5 a.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (18) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 18.0
 
Sept. 19, 2019, 4 a.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (21) 0.12 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 19, 2019, 3 a.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) 0.11 ppb (1) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 19, 2019, 2 a.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) 0.09 ppb (1) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 19, 2019, 1 a.m. 1.7 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) 0.08 ppb (1) N/A 5.0 μg/m3 (21) 25.0
 
Sept. 19, 2019, midnight 1.9 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (25) 0.08 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2019, 11 p.m. 2.2 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) 0.07 ppb (1) N/A 3.0 μg/m3 (12) 25.0
 
Sept. 18, 2019, 10 p.m. 3.1 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) 0.09 ppb (1) N/A 3.0 μg/m3 (12) 22.0
 
Sept. 18, 2019, 9 p.m. 5.2 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) 0.13 ppb (1) N/A 2.0 μg/m3 (8) 21.0
 
Sept. 18, 2019, 8 p.m. 5.3 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) 0.11 ppb (1) N/A 3.0 μg/m3 (12) 20.0
 
Sept. 18, 2019, 7 p.m. 4.4 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) 0.12 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2019, 6 p.m. 5.8 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) 0.15 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 18, 2019, 5 p.m. 8.9 ppb (8) 3.6 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 20.0 ppb (15) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 18, 2019, 4 p.m. 8.3 ppb (8) 2.8 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) 0.21 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2019, 3 p.m. 11.5 ppb (11) 3.8 ppb (4) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 14.0 ppb (11) 0.24 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2019, 2 p.m. 10.7 ppb (10) 1.9 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 14.0 ppb (11) 0.21 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 18, 2019, 1 p.m. 7.4 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 16.0 ppb (12) 0.18 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 18, 2019, noon 4.5 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 19.0 ppb (15) 0.16 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 18, 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
 
Sept. 18, 2019, 10 a.m. 0.8 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (18) 0.14 ppb (2) N/A 3.0 μg/m3 (12) 18.0
 
Sept. 18, 2019, 9 a.m. 0.7 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) 0.14 ppb (2) N/A 3.0 μg/m3 (12) 18.0
 
Sept. 18, 2019, 8 a.m. 0.7 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 18, 2019, 7 a.m. 0.9 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) 0.14 ppb (2) N/A 3.0 μg/m3 (12) 18.0
 
Sept. 18, 2019, 6 a.m. 0.8 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 18, 2019, 5 a.m. 0.8 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 19.0
 
Sept. 18, 2019, 4 a.m. 1.0 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) 0.13 ppb (1) N/A 2.0 μg/m3 (8) 19.0
 
Sept. 18, 2019, 3 a.m. 0.9 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (20) 0.13 ppb (1) N/A 4.0 μg/m3 (17) 20.0
 
Sept. 18, 2019, 2 a.m. 1.1 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) 0.1 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 18, 2019, 1 a.m. 1.5 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (22) 0.11 ppb (1) N/A 2.0 μg/m3 (8) 22.0
 
Sept. 18, 2019, midnight 1.8 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (24) 0.14 ppb (2) N/A 3.0 μg/m3 (12) 24.0
 
Sept. 17, 2019, 11 p.m. 3.3 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 25.0
 
Sept. 17, 2019, 10 p.m. 4.7 ppb (4) 1.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (30) 0.17 ppb (2) N/A 3.0 μg/m3 (12) 30.0
 
Sept. 17, 2019, 9 p.m. 4.5 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) 0.15 ppb (2) N/A 3.0 μg/m3 (12) 31.0
 
Sept. 17, 2019, 8 p.m. 3.6 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (30) 0.14 ppb (2) N/A 2.0 μg/m3 (8) 30.0
 
Sept. 17, 2019, 7 p.m. 3.1 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.15 ppb (2) N/A 3.0 μg/m3 (12) 26.0
 
Sept. 17, 2019, 6 p.m. 4.1 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 27.0 ppb (21) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 21.0
 
Sept. 17, 2019, 5 p.m. 7.4 ppb (7) 2.9 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 20.0 ppb (15) 0.19 ppb (2) N/A N/A 15.0
 
Sept. 17, 2019, 4 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
 
Sept. 17, 2019, 3 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
 
Sept. 17, 2019, 2 p.m. 45.3 ppb (42) 30.4 ppb (28) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 2.0 ppb (2) 0.59 ppb (7) N/A 8.0 μg/m3 (33) 42.0
 
Sept. 17, 2019, 1 p.m. 38.9 ppb (36) 23.9 ppb (22) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 1.0 ppb (1) 0.59 ppb (7) N/A 7.0 μg/m3 (29) 36.0
 
Sept. 17, 2019, noon 24.5 ppb (23) 10.6 ppb (10) N/A 14.0 ppb (13) N/A N/A 1.0 ppb (1) 0.43 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 17, 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
 
Sept. 17, 2019, 10 a.m. 2.3 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (15) 0.17 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 17, 2019, 9 a.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (17) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 17, 2019, 8 a.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (18) 0.16 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 17, 2019, 7 a.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (18) 0.16 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 17, 2019, 6 a.m. 1.4 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (18) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 18.0
 
Sept. 17, 2019, 5 a.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 18.0
 
Sept. 17, 2019, 4 a.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) 0.16 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 17, 2019, 3 a.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) 0.13 ppb (1) N/A 4.0 μg/m3 (17) 19.0
 
Sept. 17, 2019, 2 a.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (20) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 20.0
 
Sept. 17, 2019, 1 a.m. 1.3 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (22) 0.14 ppb (2) N/A 2.0 μg/m3 (8) 22.0
 
Sept. 17, 2019, midnight 1.6 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) 0.17 ppb (2) N/A 3.0 μg/m3 (12) 22.0
 
Sept. 16, 2019, 11 p.m. 2.0 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) 0.17 ppb (2) N/A 5.0 μg/m3 (21) 23.0
 
Sept. 16, 2019, 10 p.m. 2.9 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.18 ppb (2) N/A 5.0 μg/m3 (21) 23.0
 
Sept. 16, 2019, 9 p.m. 2.4 ppb (2) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) 0.17 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 16, 2019, 8 p.m. 1.9 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) 0.17 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2019, 7 p.m. 1.6 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (24) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 24.0
 
Sept. 16, 2019, 6 p.m. 2.0 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) 0.2 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2019, 5 p.m. 2.7 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.19 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2019, 4 p.m. 2.4 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) 0.18 ppb (2) N/A 3.0 μg/m3 (12) 24.0
 
Sept. 16, 2019, 3 p.m. 4.6 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (22) 0.21 ppb (2) N/A 4.0 μg/m3 (17) 22.0
 
Sept. 16, 2019, 2 p.m. 5.9 ppb (5) 1.2 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (23) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 23.0
 
Sept. 16, 2019, 1 p.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (25) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 25.0
 
Sept. 16, 2019, noon 2.7 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (18) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 18.0
 
Sept. 16, 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
 
Sept. 16, 2019, 10 a.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (16) 0.17 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2019, 9 a.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (15) 0.16 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 16, 2019, 8 a.m. 2.5 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (15) 0.16 ppb (2) N/A 3.0 μg/m3 (12) 15.0
 
Sept. 16, 2019, 7 a.m. 5.1 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 15.0 ppb (12) 0.17 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 16, 2019, 6 a.m. 0.6 ppb (1) 0.2 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 21.0 ppb (16) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 16.0
 
Sept. 16, 2019, 5 a.m. 0.8 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (16) 0.15 ppb (2) N/A 3.0 μg/m3 (12) 16.0
 
Sept. 16, 2019, 4 a.m. 1.0 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (17) 0.16 ppb (2) N/A 3.0 μg/m3 (12) 17.0
 
Sept. 16, 2019, 3 a.m. 1.0 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (18) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 18.0
 
Sept. 16, 2019, 2 a.m. 1.4 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (18) 0.17 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 16, 2019, 1 a.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2019, midnight 1.7 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 15, 2019, 11 p.m. 1.2 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) 0.13 ppb (1) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 15, 2019, 10 p.m. 2.7 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 27.0
 
Sept. 15, 2019, 9 p.m. 2.8 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 26.0
 
Sept. 15, 2019, 8 p.m. 3.3 ppb (3) 1.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 25.0