AQSQID: 380150003

Site Name: Bismarck Residential

Location: Bismarck, ND

Reporting: True, Located: True

Current AQI: 20.0

Bismarck ND, US: 46.8253, -100.7681

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 23, 2019, midnight 5.7 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (20) 0.24 ppb (3) N/A -0.9 μg/m3 (0) 20.0
 
Sept. 22, 2019, 11 p.m. 2.9 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.17 ppb (2) N/A 0.0 μg/m3 (0) 25.0
 
Sept. 22, 2019, 10 p.m. 3.2 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) 0.15 ppb (2) N/A 0.0 μg/m3 (0) 25.0
 
Sept. 22, 2019, 9 p.m. 1.9 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (26) 0.13 ppb (1) N/A -0.9 μg/m3 (0) 26.0
 
Sept. 22, 2019, 8 p.m. 1.8 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (25) 0.13 ppb (1) N/A -1.0 μg/m3 (0) 25.0
 
Sept. 22, 2019, 7 p.m. 2.5 ppb (2) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.15 ppb (2) N/A 1.9 μg/m3 (8) 23.0
 
Sept. 22, 2019, 6 p.m. 1.6 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) 0.14 ppb (2) N/A 2.0 μg/m3 (8) 22.0
 
Sept. 22, 2019, 5 p.m. 1.6 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) 0.14 ppb (2) N/A 1.0 μg/m3 (4) 18.0
 
Sept. 22, 2019, 4 p.m. 2.9 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (15) 0.15 ppb (2) N/A 1.0 μg/m3 (4) 15.0
 
Sept. 22, 2019, 3 p.m. 3.4 ppb (3) 1.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 15.0 ppb (12) 0.14 ppb (2) N/A 0.0 μg/m3 (0) 12.0
 
Sept. 22, 2019, 2 p.m. 5.2 ppb (5) 2.2 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 13.0 ppb (10) 0.14 ppb (2) N/A 0.9 μg/m3 (4) 10.0
 
Sept. 22, 2019, 1 p.m. 4.8 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 12.0 ppb (9) 0.15 ppb (2) N/A -0.9 μg/m3 (0) 9.0
 
Sept. 22, 2019, noon 4.5 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 10.0 ppb (8) 0.14 ppb (2) N/A 0.9 μg/m3 (4) 8.0
 
Sept. 22, 2019, 11 a.m. 3.7 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 11.0 ppb (8) 0.14 ppb (2) N/A 3.9 μg/m3 (16) 16.0
 
Sept. 22, 2019, 10 a.m. 2.6 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 14.0 ppb (11) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 22, 2019, 9 a.m. 2.9 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 14.0 ppb (11) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 22, 2019, 8 a.m. 2.8 ppb (3) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 13.0 ppb (10) 0.13 ppb (1) N/A 0.1 μg/m3 (0) 10.0
 
Sept. 22, 2019, 7 a.m. 4.5 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 12.0 ppb (9) 0.13 ppb (1) N/A 1.9 μg/m3 (8) 9.0
 
Sept. 22, 2019, 6 a.m. 4.0 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 12.0 ppb (9) 0.13 ppb (1) N/A 3.9 μg/m3 (16) 16.0
 
Sept. 22, 2019, 5 a.m. 4.3 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 11.0 ppb (8) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 22, 2019, 4 a.m. 4.3 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 14.0 ppb (11) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 22, 2019, 3 a.m. 4.4 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 17.0 ppb (13) 0.15 ppb (2) N/A 3.0 μg/m3 (12) 13.0
 
Sept. 22, 2019, 2 a.m. 3.2 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A -0.8 μg/m3 (0) 16.0
 
Sept. 22, 2019, 1 a.m. 6.2 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 23.0 ppb (18) 0.14 ppb (2) N/A 0.9 μg/m3 (4) 18.0
 
Sept. 22, 2019, midnight 3.5 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (24) 0.14 ppb (2) N/A 1.9 μg/m3 (8) 24.0
 
Sept. 21, 2019, 11 p.m. 2.7 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) 0.14 ppb (2) N/A 1.0 μg/m3 (4) 28.0
 
Sept. 21, 2019, 10 p.m. 3.6 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 36.0 ppb (28) 0.13 ppb (1) N/A 1.0 μg/m3 (4) 28.0
 
Sept. 21, 2019, 9 p.m. 3.9 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 34.0 ppb (26) 0.14 ppb (2) N/A 1.0 μg/m3 (4) 26.0
 
Sept. 21, 2019, 8 p.m. 7.9 ppb (7) 1.7 ppb (2) N/A 6.0 ppb (6) N/A 4.0 ppb (6) 35.0 ppb (27) 0.14 ppb (2) N/A 1.0 μg/m3 (4) 27.0
 
Sept. 21, 2019, 7 p.m. 3.6 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) 0.13 ppb (1) N/A -2.9 μg/m3 (0) 31.0
 
Sept. 21, 2019, 6 p.m. 3.2 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.15 ppb (2) N/A -1.0 μg/m3 (0) 27.0
 
Sept. 21, 2019, 5 p.m. 4.1 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 25.0 ppb (19) 0.14 ppb (2) N/A 1.9 μg/m3 (8) 19.0
 
Sept. 21, 2019, 4 p.m. 3.7 ppb (3) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) 0.14 ppb (2) N/A 0.0 μg/m3 (0) 19.0
 
Sept. 21, 2019, 3 p.m. 2.3 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) 0.11 ppb (1) N/A -2.9 μg/m3 (0) 24.0
 
Sept. 21, 2019, 2 p.m. 2.3 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) 0.1 ppb (1) N/A -1.0 μg/m3 (0) 24.0
 
Sept. 21, 2019, 1 p.m. 5.3 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (22) 0.13 ppb (1) N/A 0.9 μg/m3 (4) 22.0
 
Sept. 21, 2019, noon 2.2 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.1 ppb (1) N/A 0.0 μg/m3 (0) 25.0
 
Sept. 21, 2019, 11 a.m. 2.1 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.1 ppb (1) N/A -0.9 μg/m3 (0) 25.0
 
Sept. 21, 2019, 10 a.m. 2.2 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) 0.11 ppb (1) N/A 0.0 μg/m3 (0) 25.0
 
Sept. 21, 2019, 9 a.m. 3.5 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) 0.11 ppb (1) N/A 0.0 μg/m3 (0) 25.0
 
Sept. 21, 2019, 8 a.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) 0.11 ppb (1) N/A 1.9 μg/m3 (8) 23.0
 
Sept. 21, 2019, 7 a.m. 1.7 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) 0.11 ppb (1) N/A 2.0 μg/m3 (8) 25.0
 
Sept. 21, 2019, 6 a.m. 1.7 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (19) 0.11 ppb (1) N/A 1.0 μg/m3 (4) 19.0
 
Sept. 21, 2019, 5 a.m. 2.3 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) 0.12 ppb (1) N/A 2.9 μg/m3 (12) 20.0
 
Sept. 21, 2019, 4 a.m. 2.9 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) 0.13 ppb (1) N/A 3.9 μg/m3 (16) 19.0
 
Sept. 21, 2019, 3 a.m. 5.2 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (20) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 20.0
 
Sept. 21, 2019, 2 a.m. 4.1 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 2.0 μg/m3 (8) 23.0
 
Sept. 21, 2019, 1 a.m. 6.5 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) 0.13 ppb (1) N/A 1.0 μg/m3 (4) 22.0
 
Sept. 21, 2019, midnight 3.8 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (22) 0.11 ppb (1) N/A 1.9 μg/m3 (8) 22.0
 
Sept. 20, 2019, 11 p.m. 6.0 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) 0.13 ppb (1) N/A 4.9 μg/m3 (20) 22.0
 
Sept. 20, 2019, 10 p.m. 3.3 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) 0.13 ppb (1) N/A 4.0 μg/m3 (17) 25.0
 
Sept. 20, 2019, 9 p.m. 6.0 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 26.0 ppb (20) 0.17 ppb (2) N/A 3.0 μg/m3 (12) 20.0
 
Sept. 20, 2019, 8 p.m. 2.3 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 25.0
 
Sept. 20, 2019, 7 p.m. 2.1 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) 0.14 ppb (2) N/A 4.9 μg/m3 (20) 25.0
 
Sept. 20, 2019, 6 p.m. 2.3 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) 0.14 ppb (2) N/A 8.9 μg/m3 (37) 37.0
 
Sept. 20, 2019, 5 p.m. 2.7 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) 0.21 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 20, 2019, 4 p.m. 2.4 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (18) 0.15 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 20, 2019, 3 p.m. 2.8 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 18.0 ppb (14) 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 20, 2019, 2 p.m. 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (15) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 20, 2019, 1 p.m. 3.2 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 19.0 ppb (15) 0.16 ppb (2) N/A 4.9 μg/m3 (20) 20.0
 
Sept. 20, 2019, noon 3.4 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 20, 2019, 11 a.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (18) 0.14 ppb (2) N/A 2.0 μg/m3 (8) 18.0
 
Sept. 20, 2019, 10 a.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) 0.13 ppb (1) N/A 2.0 μg/m3 (8) 20.0
 
Sept. 20, 2019, 9 a.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) 0.13 ppb (1) N/A 2.9 μg/m3 (12) 23.0
 
Sept. 20, 2019, 8 a.m. 1.3 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) 0.13 ppb (1) N/A 3.9 μg/m3 (16) 25.0
 
Sept. 20, 2019, 7 a.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (26) 0.12 ppb (1) N/A 4.0 μg/m3 (17) 26.0
 
Sept. 20, 2019, 6 a.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) 0.12 ppb (1) N/A 4.9 μg/m3 (20) 25.0
 
Sept. 20, 2019, 5 a.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) 0.12 ppb (1) N/A 5.9 μg/m3 (25) 25.0
 
Sept. 20, 2019, 4 a.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (20) 0.12 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 20, 2019, 3 a.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (22) 0.12 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 20, 2019, 2 a.m. 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 20, 2019, 1 a.m. 2.0 ppb (2) 0.1 ppb (0) 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. 20, 2019, midnight 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.17 ppb (2) N/A 4.0 μg/m3 (17) 27.0
 
Sept. 19, 2019, 11 p.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) 0.14 ppb (2) N/A 6.9 μg/m3 (29) 29.0
 
Sept. 19, 2019, 10 p.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (29) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 29.0
 
Sept. 19, 2019, 9 p.m. 1.7 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) 0.14 ppb (2) N/A 6.9 μg/m3 (29) 30.0
 
Sept. 19, 2019, 8 p.m. 2.1 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) 0.14 ppb (2) N/A 3.0 μg/m3 (12) 29.0
 
Sept. 19, 2019, 7 p.m. 1.7 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (29) 0.14 ppb (2) N/A 1.0 μg/m3 (4) 29.0
 
Sept. 19, 2019, 6 p.m. 1.6 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) 0.14 ppb (2) N/A 5.9 μg/m3 (25) 28.0
 
Sept. 19, 2019, 5 p.m. 1.9 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.14 ppb (2) N/A 10.9 μg/m3 (45) 45.0
 
Sept. 19, 2019, 4 p.m. 2.5 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.14 ppb (2) N/A 26.7 μg/m3 (81) 81.0
 
Sept. 19, 2019, 3 p.m. 4.5 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) 0.14 ppb (2) N/A N/A 15.0
 
Sept. 19, 2019, 2 p.m. 5.6 ppb (5) 1.8 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 17.0 ppb (13) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 13.0
 
Sept. 19, 2019, 1 p.m. 12.3 ppb (11) 3.7 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 9.0 ppb (7) 0.18 ppb (2) N/A 2.0 μg/m3 (8) 11.0
 
Sept. 19, 2019, noon 14.2 ppb (13) 2.6 ppb (2) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 4.0 ppb (3) 0.18 ppb (2) N/A 3.9 μg/m3 (16) 16.0
 
Sept. 19, 2019, 11 a.m. 12.2 ppb (11) 0.9 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 8.0 ppb (6) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 19, 2019, 10 a.m. 7.8 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 12.0 ppb (9) 0.16 ppb (2) N/A 4.9 μg/m3 (20) 20.0
 
Sept. 19, 2019, 9 a.m. 14.1 ppb (13) 1.5 ppb (1) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 4.0 ppb (3) 0.19 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 19, 2019, 8 a.m. 6.9 ppb (6) 0.2 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) 0.16 ppb (2) N/A 6.9 μg/m3 (29) 29.0
 
Sept. 19, 2019, 7 a.m. 8.4 ppb (8) 0.2 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 17.0 ppb (13) 0.17 ppb (2) N/A 8.9 μg/m3 (37) 37.0
 
Sept. 19, 2019, 6 a.m. 18.0 ppb (17) 0.6 ppb (1) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 7.0 ppb (5) 0.25 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 19, 2019, 5 a.m. 11.6 ppb (11) 0.4 ppb (0) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 15.0 ppb (12) 0.23 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 19, 2019, 4 a.m. 11.0 ppb (10) 0.2 ppb (0) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 21.0 ppb (16) 0.25 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 19, 2019, 3 a.m. 10.6 ppb (10) 0.3 ppb (0) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 23.0 ppb (18) 0.21 ppb (2) N/A 7.9 μg/m3 (33) 33.0
 
Sept. 19, 2019, 2 a.m. 10.9 ppb (10) 0.2 ppb (0) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 24.0 ppb (18) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 19, 2019, 1 a.m. 9.0 ppb (8) 0.2 ppb (0) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 29.0 ppb (22) 0.23 ppb (3) N/A 5.9 μg/m3 (25) 25.0
 
Sept. 19, 2019, midnight 6.5 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 36.0 ppb (28) 0.19 ppb (2) N/A 5.0 μg/m3 (21) 28.0
 
Sept. 18, 2019, 11 p.m. 4.5 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 41.0 ppb (32) 0.16 ppb (2) N/A 3.0 μg/m3 (12) 32.0
 
Sept. 18, 2019, 10 p.m. 4.3 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 42.0 ppb (32) 0.16 ppb (2) N/A 2.0 μg/m3 (8) 32.0
 
Sept. 18, 2019, 9 p.m. 3.3 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 42.0 ppb (32) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 32.0
 
Sept. 18, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 38.0 ppb (29) 0.14 ppb (2) N/A N/A 29.0
 
Sept. 18, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.13 ppb (1) N/A N/A 28.0
 
Sept. 18, 2019, 6 p.m. 2.3 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) N/A N/A N/A 27.0
 
Sept. 18, 2019, 5 p.m. 2.8 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) 0.15 ppb (2) N/A 9.9 μg/m3 (41) 41.0
 
Sept. 18, 2019, 4 p.m. 3.6 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 28.0 ppb (22) 0.14 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 18, 2019, 3 p.m. 3.8 ppb (4) 1.2 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 26.0 ppb (20) 0.14 ppb (2) N/A 3.0 μg/m3 (12) 20.0
 
Sept. 18, 2019, 2 p.m. 3.3 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) 0.14 ppb (2) N/A 2.0 μg/m3 (8) 16.0
 
Sept. 18, 2019, 1 p.m. 3.3 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) 0.14 ppb (2) N/A 1.0 μg/m3 (4) 15.0
 
Sept. 18, 2019, noon 3.1 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (17) 0.14 ppb (2) N/A 1.0 μg/m3 (4) 17.0
 
Sept. 18, 2019, 11 a.m. 1.9 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.12 ppb (1) N/A -1.9 μg/m3 (0) 23.0
 
Sept. 18, 2019, 10 a.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (27) 0.11 ppb (1) N/A -1.0 μg/m3 (0) 27.0
 
Sept. 18, 2019, 9 a.m. 1.0 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (31) 0.1 ppb (1) N/A 0.9 μg/m3 (4) 31.0
 
Sept. 18, 2019, 8 a.m. 0.9 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (32) 0.1 ppb (1) N/A 4.9 μg/m3 (20) 32.0
 
Sept. 18, 2019, 7 a.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (31) 0.1 ppb (1) N/A 6.9 μg/m3 (29) 31.0
 
Sept. 18, 2019, 6 a.m. 1.0 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) 0.11 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2019, 5 a.m. 2.3 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) 0.11 ppb (1) N/A 4.0 μg/m3 (17) 25.0
 
Sept. 18, 2019, 4 a.m. 2.5 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) 0.11 ppb (1) N/A 5.9 μg/m3 (25) 28.0
 
Sept. 18, 2019, 3 a.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) 0.11 ppb (1) N/A 6.9 μg/m3 (29) 30.0
 
Sept. 18, 2019, 2 a.m. 1.9 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 18, 2019, 1 a.m. 2.8 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (22) 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2019, midnight 3.6 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (22) 0.17 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 17, 2019, 11 p.m. 3.2 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) 0.16 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 17, 2019, 10 p.m. 2.7 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) 0.16 ppb (2) N/A 6.9 μg/m3 (29) 29.0
 
Sept. 17, 2019, 9 p.m. 2.4 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.17 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 17, 2019, 8 p.m. 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.17 ppb (2) N/A 7.9 μg/m3 (33) 33.0
 
Sept. 17, 2019, 7 p.m. 2.3 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.17 ppb (2) N/A 11.9 μg/m3 (50) 50.0
 
Sept. 17, 2019, 6 p.m. 2.3 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) 0.17 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 17, 2019, 5 p.m. 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) 0.18 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 17, 2019, 4 p.m. 2.4 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) 0.19 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 17, 2019, 3 p.m. 3.2 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) 0.19 ppb (2) N/A 11.9 μg/m3 (50) 50.0
 
Sept. 17, 2019, 2 p.m. 3.2 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) 0.2 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 17, 2019, 1 p.m. 4.9 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (20) 0.21 ppb (2) N/A 9.9 μg/m3 (41) 41.0
 
Sept. 17, 2019, noon 5.1 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (20) 0.21 ppb (2) N/A 11.9 μg/m3 (50) 50.0
 
Sept. 17, 2019, 11 a.m. 2.9 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (22) 0.19 ppb (2) N/A 13.9 μg/m3 (54) 54.0
 
Sept. 17, 2019, 10 a.m. 2.2 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (22) 0.18 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 17, 2019, 9 a.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (22) 0.17 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 17, 2019, 8 a.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) 0.17 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 17, 2019, 7 a.m. 2.3 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (22) 0.16 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 17, 2019, 6 a.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) 0.16 ppb (2) N/A 6.9 μg/m3 (29) 29.0
 
Sept. 17, 2019, 5 a.m. 1.7 ppb (2) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) 0.16 ppb (2) N/A 8.9 μg/m3 (37) 37.0
 
Sept. 17, 2019, 4 a.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) 0.16 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 17, 2019, 3 a.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) 0.16 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 17, 2019, 2 a.m. 2.4 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 17, 2019, 1 a.m. 2.7 ppb (3) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) 0.17 ppb (2) N/A 6.9 μg/m3 (29) 29.0
 
Sept. 17, 2019, midnight 2.4 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (28) 0.17 ppb (2) N/A 4.0 μg/m3 (17) 28.0
 
Sept. 16, 2019, 11 p.m. 2.8 ppb (3) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (28) 0.17 ppb (2) N/A 3.0 μg/m3 (12) 28.0
 
Sept. 16, 2019, 10 p.m. 2.6 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) 0.16 ppb (2) N/A 3.9 μg/m3 (16) 29.0
 
Sept. 16, 2019, 9 p.m. 2.1 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) 0.15 ppb (2) N/A 6.9 μg/m3 (29) 30.0
 
Sept. 16, 2019, 8 p.m. 2.3 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.16 ppb (2) N/A 6.0 μg/m3 (25) 27.0
 
Sept. 16, 2019, 7 p.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) 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2019, 6 p.m. 2.4 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (21) 0.15 ppb (2) N/A 6.9 μg/m3 (29) 29.0
 
Sept. 16, 2019, 5 p.m. 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (19) 0.15 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 16, 2019, 4 p.m. 3.2 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (19) 0.16 ppb (2) N/A 3.0 μg/m3 (12) 19.0
 
Sept. 16, 2019, 3 p.m. 2.9 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (17) 0.15 ppb (2) N/A 5.9 μg/m3 (25) 25.0
 
Sept. 16, 2019, 2 p.m. 4.6 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) 0.17 ppb (2) N/A 6.9 μg/m3 (29) 29.0
 
Sept. 16, 2019, 1 p.m. 7.5 ppb (7) 1.5 ppb (1) 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. 16, 2019, noon 7.0 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 17.0 ppb (13) 0.19 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 16, 2019, 11 a.m. 3.2 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 16, 2019, 10 a.m. 1.5 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. 16, 2019, 9 a.m. 1.3 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 4.0 μg/m3 (17) 19.0
 
Sept. 16, 2019, 8 a.m. 1.2 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 1.1 μg/m3 (5) 18.0
 
Sept. 16, 2019, 7 a.m. 1.1 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 -0.9 μg/m3 (0) 18.0
 
Sept. 16, 2019, 6 a.m. 1.1 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 2.8 μg/m3 (12) 19.0
 
Sept. 16, 2019, 5 a.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (20) 0.14 ppb (2) N/A 3.9 μg/m3 (16) 20.0
 
Sept. 16, 2019, 4 a.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (19) 0.15 ppb (2) N/A 3.0 μg/m3 (12) 19.0
 
Sept. 16, 2019, 3 a.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (22) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 22.0
 
Sept. 16, 2019, 2 a.m. 2.2 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 1.0 μg/m3 (4) 22.0
 
Sept. 16, 2019, 1 a.m. 2.8 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (22) 0.15 ppb (2) N/A 1.0 μg/m3 (4) 22.0