AQSQID: 380150003

Site Name: Bismarck Residential

Location: Bismarck, ND

Reporting: True, Located: True

Current AQI: 14.0

Bismarck ND, US: 46.8253, -100.7681

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 21, 2019, 4 p.m. 2.9 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 18.0 ppb (14) 0.09 ppb (1) N/A 1.0 μg/m3 (4) 14.0
 
July 21, 2019, 3 p.m. 2.7 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 15.0 ppb (12) 0.09 ppb (1) N/A 0.0 μg/m3 (0) 12.0
 
July 21, 2019, 2 p.m. 2.6 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 17.0 ppb (13) 0.07 ppb (1) N/A 1.9 μg/m3 (8) 13.0
 
July 21, 2019, 1 p.m. 2.8 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 16.0 ppb (12) 0.07 ppb (1) N/A 1.0 μg/m3 (4) 12.0
 
July 21, 2019, noon 5.4 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 12.0 ppb (9) 0.09 ppb (1) N/A -0.9 μg/m3 (0) 9.0
 
July 21, 2019, 11 a.m. 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (15) 0.07 ppb (1) N/A -1.0 μg/m3 (0) 15.0
 
July 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) 19.0 ppb (15) 0.07 ppb (1) N/A 1.8 μg/m3 (8) 15.0
 
July 21, 2019, 9 a.m. 1.6 ppb (1) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (17) 0.07 ppb (1) N/A 3.9 μg/m3 (16) 17.0
 
July 21, 2019, 8 a.m. 1.6 ppb (1) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (17) 0.07 ppb (1) N/A 5.9 μg/m3 (25) 25.0
 
July 21, 2019, 7 a.m. 1.7 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (18) 0.08 ppb (1) N/A 6.9 μg/m3 (29) 29.0
 
July 21, 2019, 6 a.m. 2.5 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (19) 0.08 ppb (1) N/A 7.0 μg/m3 (29) 29.0
 
July 21, 2019, 5 a.m. 3.7 ppb (3) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (22) 0.1 ppb (1) N/A 4.1 μg/m3 (17) 22.0
 
July 21, 2019, 4 a.m. 3.5 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (24) 0.09 ppb (1) N/A 3.0 μg/m3 (12) 24.0
 
July 21, 2019, 3 a.m. 4.5 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) 0.12 ppb (1) N/A 3.0 μg/m3 (12) 24.0
 
July 21, 2019, 2 a.m. 3.2 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 37.0 ppb (28) N/A N/A 3.0 μg/m3 (12) 28.0
 
July 21, 2019, 1 a.m. 2.2 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) 0.1 ppb (1) N/A 2.0 μg/m3 (8) 32.0
 
July 21, 2019, midnight 1.8 ppb (2) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 43.0 ppb (33) 0.09 ppb (1) N/A 2.9 μg/m3 (12) 33.0
 
July 20, 2019, 11 p.m. 1.6 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 42.0 ppb (32) 0.09 ppb (1) N/A 3.0 μg/m3 (12) 32.0
 
July 20, 2019, 10 p.m. 1.8 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 44.0 ppb (34) 0.09 ppb (1) N/A 3.0 μg/m3 (12) 34.0
 
July 20, 2019, 9 p.m. 1.9 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 42.0 ppb (32) 0.09 ppb (1) N/A 3.0 μg/m3 (12) 32.0
 
July 20, 2019, 8 p.m. 2.4 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 43.0 ppb (33) 0.1 ppb (1) N/A 3.9 μg/m3 (16) 33.0
 
July 20, 2019, 7 p.m. 2.6 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 43.0 ppb (33) 0.1 ppb (1) N/A 3.0 μg/m3 (12) 33.0
 
July 20, 2019, 6 p.m. 3.3 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 44.0 ppb (34) 0.1 ppb (1) N/A 2.0 μg/m3 (8) 34.0
 
July 20, 2019, 5 p.m. 3.2 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 37.0 ppb (28) 0.11 ppb (1) N/A 1.0 μg/m3 (4) 28.0
 
July 20, 2019, 4 p.m. 2.5 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) 0.12 ppb (1) N/A 2.9 μg/m3 (12) 25.0
 
July 20, 2019, 3 p.m. 2.6 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) 0.13 ppb (1) N/A 3.9 μg/m3 (16) 22.0
 
July 20, 2019, 2 p.m. 3.1 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) 0.12 ppb (1) N/A 1.1 μg/m3 (5) 21.0
 
July 20, 2019, 1 p.m. 3.7 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) 0.11 ppb (1) N/A 1.9 μg/m3 (8) 19.0
 
July 20, 2019, noon 3.7 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (18) 0.11 ppb (1) N/A 4.8 μg/m3 (20) 20.0
 
July 20, 2019, 11 a.m. 4.8 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 18.0 ppb (14) 0.11 ppb (1) N/A 4.0 μg/m3 (17) 17.0
 
July 20, 2019, 10 a.m. 4.9 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 18.0 ppb (14) 0.1 ppb (1) N/A 4.9 μg/m3 (20) 20.0
 
July 20, 2019, 9 a.m. 3.8 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 21.0 ppb (16) 0.09 ppb (1) N/A 2.1 μg/m3 (9) 16.0
 
July 20, 2019, 8 a.m. 3.6 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (18) 0.1 ppb (1) N/A 2.0 μg/m3 (8) 18.0
 
July 20, 2019, 7 a.m. 4.8 ppb (4) 0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 22.0 ppb (17) 0.1 ppb (1) N/A 3.9 μg/m3 (16) 17.0
 
July 20, 2019, 6 a.m. 3.5 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) 0.11 ppb (1) N/A 4.9 μg/m3 (20) 21.0
 
July 20, 2019, 5 a.m. 4.1 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (22) 0.14 ppb (2) N/A 5.9 μg/m3 (25) 25.0
 
July 20, 2019, 4 a.m. 4.1 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 5.0 μg/m3 (21) 22.0
 
July 20, 2019, 3 a.m. 4.5 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) 0.12 ppb (1) N/A 2.1 μg/m3 (9) 24.0
 
July 20, 2019, 2 a.m. 4.5 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A 2.0 μg/m3 (8) 28.0
 
July 20, 2019, 1 a.m. 3.1 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 44.0 ppb (34) 0.11 ppb (1) N/A 1.0 μg/m3 (4) 34.0
 
July 20, 2019, midnight 2.8 ppb (3) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 51.0 ppb (39) 0.09 ppb (1) N/A 1.0 μg/m3 (4) 39.0
 
July 19, 2019, 11 p.m. 2.8 ppb (3) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 50.0 ppb (38) 0.1 ppb (1) N/A 0.0 μg/m3 (0) 38.0
 
July 19, 2019, 10 p.m. 2.7 ppb (3) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 50.0 ppb (38) 0.1 ppb (1) N/A -1.9 μg/m3 (0) 38.0
 
July 19, 2019, 9 p.m. 2.9 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (38) 0.1 ppb (1) N/A 0.8 μg/m3 (3) 38.0
 
July 19, 2019, 8 p.m. 2.6 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (35) 0.1 ppb (1) N/A 1.9 μg/m3 (8) 35.0
 
July 19, 2019, 7 p.m. 3.0 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) 0.1 ppb (1) N/A 2.0 μg/m3 (8) 32.0
 
July 19, 2019, 6 p.m. 2.9 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) 0.1 ppb (1) N/A 2.9 μg/m3 (12) 30.0
 
July 19, 2019, 5 p.m. 4.8 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 34.0 ppb (26) 0.11 ppb (1) N/A 3.9 μg/m3 (16) 26.0
 
July 19, 2019, 4 p.m. 6.0 ppb (6) 1.7 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 27.0 ppb (21) 0.12 ppb (1) N/A 3.0 μg/m3 (12) 21.0
 
July 19, 2019, 3 p.m. 5.6 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 25.0 ppb (19) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 19.0
 
July 19, 2019, 2 p.m. 5.9 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (17) 0.13 ppb (1) N/A 2.0 μg/m3 (8) 17.0
 
July 19, 2019, 1 p.m. 9.2 ppb (9) 1.8 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (17) 0.17 ppb (2) N/A 2.0 μg/m3 (8) 17.0
 
July 19, 2019, noon 6.5 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (18) 0.16 ppb (2) N/A 2.0 μg/m3 (8) 18.0
 
July 19, 2019, 11 a.m. 4.3 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (22) 0.13 ppb (1) N/A 2.0 μg/m3 (8) 22.0
 
July 19, 2019, 10 a.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (29) 0.11 ppb (1) N/A 2.9 μg/m3 (12) 29.0
 
July 19, 2019, 9 a.m. 3.6 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) 0.11 ppb (1) N/A 3.9 μg/m3 (16) 17.0
 
July 19, 2019, 8 a.m. 2.6 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) 0.11 ppb (1) N/A 4.0 μg/m3 (17) 20.0
 
July 19, 2019, 7 a.m. 3.4 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) 0.11 ppb (1) N/A 4.0 μg/m3 (17) 19.0
 
July 19, 2019, 6 a.m. 5.0 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 22.0 ppb (17) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 17.0
 
July 19, 2019, 5 a.m. 3.6 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (18) 0.13 ppb (1) N/A 4.9 μg/m3 (20) 20.0
 
July 19, 2019, 4 a.m. 4.3 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (18) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
July 19, 2019, 3 a.m. 4.4 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (20) 0.14 ppb (2) N/A 2.1 μg/m3 (9) 20.0
 
July 19, 2019, 2 a.m. 5.7 ppb (5) 0.2 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 3.9 μg/m3 (16) 21.0
 
July 19, 2019, 1 a.m. 2.4 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.12 ppb (1) N/A 3.0 μg/m3 (12) 26.0
 
July 19, 2019, midnight 2.0 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.12 ppb (1) N/A 3.0 μg/m3 (12) 27.0
 
July 18, 2019, 11 p.m. 2.6 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) 0.13 ppb (1) N/A 2.0 μg/m3 (8) 28.0
 
July 18, 2019, 10 p.m. 2.8 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.13 ppb (1) N/A 3.9 μg/m3 (16) 26.0
 
July 18, 2019, 9 p.m. 2.7 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.12 ppb (1) N/A 4.0 μg/m3 (17) 25.0
 
July 18, 2019, 8 p.m. 2.2 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) 0.11 ppb (1) N/A 4.0 μg/m3 (17) 29.0
 
July 18, 2019, 7 p.m. 3.3 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (27) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 27.0
 
July 18, 2019, 6 p.m. 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) 0.12 ppb (1) N/A 3.0 μg/m3 (12) 28.0
 
July 18, 2019, 5 p.m. 3.9 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (27) 0.13 ppb (1) N/A 2.0 μg/m3 (8) 27.0
 
July 18, 2019, 4 p.m. 4.3 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (23) 0.12 ppb (1) N/A 3.9 μg/m3 (16) 23.0
 
July 18, 2019, 3 p.m. 4.8 ppb (4) 1.3 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (19) 0.12 ppb (1) N/A 4.0 μg/m3 (17) 19.0
 
July 18, 2019, 2 p.m. 6.1 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 21.0 ppb (16) 0.14 ppb (2) N/A 1.1 μg/m3 (5) 16.0
 
July 18, 2019, 1 p.m. 6.0 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (18) 0.15 ppb (2) N/A -0.9 μg/m3 (0) 18.0
 
July 18, 2019, noon 5.5 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (20) 0.14 ppb (2) N/A 0.0 μg/m3 (0) 20.0
 
July 18, 2019, 11 a.m. 4.9 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (23) 0.12 ppb (1) N/A 1.9 μg/m3 (8) 23.0
 
July 18, 2019, 10 a.m. 3.8 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) 0.11 ppb (1) N/A 0.0 μg/m3 (0) 24.0
 
July 18, 2019, 9 a.m. 3.3 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (28) 0.1 ppb (1) N/A -0.9 μg/m3 (0) 28.0
 
July 18, 2019, 8 a.m. 2.1 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (33) 0.1 ppb (1) N/A 0.9 μg/m3 (4) 33.0
 
July 18, 2019, 7 a.m. 3.0 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 43.0 ppb (33) 0.11 ppb (1) N/A 2.9 μg/m3 (12) 33.0
 
July 18, 2019, 6 a.m. 4.2 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 43.0 ppb (33) 0.11 ppb (1) N/A 4.9 μg/m3 (20) 33.0
 
July 18, 2019, 5 a.m. 3.3 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (34) 0.11 ppb (1) N/A 5.0 μg/m3 (21) 34.0
 
July 18, 2019, 4 a.m. 1.7 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (32) 0.11 ppb (1) N/A 2.1 μg/m3 (9) 32.0
 
July 18, 2019, 3 a.m. 2.8 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (28) 0.13 ppb (1) N/A 2.0 μg/m3 (8) 28.0
 
July 18, 2019, 2 a.m. 4.0 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 2.0 μg/m3 (8) 28.0
 
July 18, 2019, 1 a.m. 3.3 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (32) 0.14 ppb (2) N/A 0.0 μg/m3 (0) 32.0
 
July 18, 2019, midnight 2.0 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (34) 0.11 ppb (1) N/A 1.9 μg/m3 (8) 34.0
 
July 17, 2019, 11 p.m. 1.9 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 48.0 ppb (37) 0.11 ppb (1) N/A 2.9 μg/m3 (12) 37.0
 
July 17, 2019, 10 p.m. 2.6 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 49.0 ppb (38) 0.11 ppb (1) N/A 3.0 μg/m3 (12) 38.0
 
July 17, 2019, 9 p.m. 3.1 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 49.0 ppb (38) 0.11 ppb (1) N/A 3.0 μg/m3 (12) 38.0
 
July 17, 2019, 8 p.m. 4.6 ppb (4) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 50.0 ppb (38) 0.12 ppb (1) N/A N/A 38.0
 
July 17, 2019, 7 p.m. 5.2 ppb (5) 1.1 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 47.0 ppb (36) 0.11 ppb (1) N/A N/A 36.0
 
July 17, 2019, 6 p.m. 5.0 ppb (5) 1.2 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 43.0 ppb (33) 0.12 ppb (1) N/A 7.1 μg/m3 (30) 33.0
 
July 17, 2019, 5 p.m. 4.6 ppb (4) 1.2 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 39.0 ppb (30) 0.12 ppb (1) N/A 1.0 μg/m3 (4) 30.0
 
July 17, 2019, 4 p.m. 3.0 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (28) 0.11 ppb (1) N/A 1.0 μg/m3 (4) 28.0
 
July 17, 2019, 3 p.m. 3.1 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.11 ppb (1) N/A 1.0 μg/m3 (4) 27.0
 
July 17, 2019, 2 p.m. 3.1 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.11 ppb (1) N/A 2.9 μg/m3 (12) 26.0
 
July 17, 2019, 1 p.m. 4.3 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (24) 0.12 ppb (1) N/A 0.1 μg/m3 (0) 24.0
 
July 17, 2019, noon 4.0 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) 0.12 ppb (1) N/A -1.9 μg/m3 (0) 24.0
 
July 17, 2019, 11 a.m. 3.0 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (28) 0.11 ppb (1) N/A 0.8 μg/m3 (3) 28.0
 
July 17, 2019, 10 a.m. 1.8 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.1 ppb (1) N/A 2.9 μg/m3 (12) 26.0
 
July 17, 2019, 9 a.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.1 ppb (1) N/A 2.0 μg/m3 (8) 27.0
 
July 17, 2019, 8 a.m. 1.9 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) 0.1 ppb (1) N/A 0.0 μg/m3 (0) 24.0
 
July 17, 2019, 7 a.m. 2.1 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.1 ppb (1) N/A 1.9 μg/m3 (8) 26.0
 
July 17, 2019, 6 a.m. 1.7 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.1 ppb (1) N/A 2.9 μg/m3 (12) 27.0
 
July 17, 2019, 5 a.m. 1.7 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.1 ppb (1) N/A 3.9 μg/m3 (16) 27.0
 
July 17, 2019, 4 a.m. 2.2 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) 0.1 ppb (1) N/A 3.0 μg/m3 (12) 28.0
 
July 17, 2019, 3 a.m. 1.9 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) 0.11 ppb (1) N/A 2.0 μg/m3 (8) 29.0
 
July 17, 2019, 2 a.m. 1.9 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 3.9 μg/m3 (16) 30.0
 
July 17, 2019, 1 a.m. 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (28) 0.12 ppb (1) N/A 4.9 μg/m3 (20) 28.0
 
July 17, 2019, midnight 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) 0.13 ppb (1) N/A 2.1 μg/m3 (9) 31.0
 
July 16, 2019, 11 p.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) 0.12 ppb (1) N/A 2.0 μg/m3 (8) 33.0
 
July 16, 2019, 10 p.m. 2.1 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) 0.13 ppb (1) N/A 3.9 μg/m3 (16) 32.0
 
July 16, 2019, 9 p.m. 3.0 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (32) 0.14 ppb (2) N/A 5.9 μg/m3 (25) 32.0
 
July 16, 2019, 8 p.m. 5.2 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 41.0 ppb (32) 0.16 ppb (2) N/A 5.0 μg/m3 (21) 32.0
 
July 16, 2019, 7 p.m. 2.7 ppb (3) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (33) 0.14 ppb (2) N/A 1.1 μg/m3 (5) 33.0
 
July 16, 2019, 6 p.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (35) 0.12 ppb (1) N/A -0.9 μg/m3 (0) 35.0
 
July 16, 2019, 5 p.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 46.0 ppb (35) 0.12 ppb (1) N/A 0.0 μg/m3 (0) 35.0
 
July 16, 2019, 4 p.m. 2.3 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (33) 0.13 ppb (1) N/A 2.8 μg/m3 (12) 33.0
 
July 16, 2019, 3 p.m. 3.6 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (29) 0.14 ppb (2) N/A 4.9 μg/m3 (20) 29.0
 
July 16, 2019, 2 p.m. 7.7 ppb (7) 1.8 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) 0.18 ppb (2) N/A 5.9 μg/m3 (25) 25.0
 
July 16, 2019, 1 p.m. 12.6 ppb (12) 2.4 ppb (2) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 20.0 ppb (15) 0.21 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
July 16, 2019, noon 10.3 ppb (10) 1.2 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 23.0 ppb (18) 0.18 ppb (2) N/A 1.1 μg/m3 (5) 18.0
 
July 16, 2019, 11 a.m. 7.6 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) 0.15 ppb (2) N/A 3.8 μg/m3 (16) 22.0
 
July 16, 2019, 10 a.m. 4.4 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (25) 0.12 ppb (1) N/A 6.8 μg/m3 (28) 28.0
 
July 16, 2019, 9 a.m. 3.4 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (24) 0.11 ppb (1) N/A 4.1 μg/m3 (17) 24.0
 
July 16, 2019, 8 a.m. 4.2 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (22) 0.12 ppb (1) N/A 5.9 μg/m3 (25) 25.0
 
July 16, 2019, 7 a.m. 5.7 ppb (5) 0.2 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (20) 0.14 ppb (2) N/A 3.1 μg/m3 (13) 20.0
 
July 16, 2019, 6 a.m. 3.9 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) 0.12 ppb (1) N/A 3.0 μg/m3 (12) 25.0
 
July 16, 2019, 5 a.m. 3.1 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (28) 0.12 ppb (1) N/A 3.0 μg/m3 (12) 28.0
 
July 16, 2019, 4 a.m. 4.0 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (29) 0.13 ppb (1) N/A 2.0 μg/m3 (8) 29.0
 
July 16, 2019, 3 a.m. 3.3 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 42.0 ppb (32) 0.13 ppb (1) N/A 1.0 μg/m3 (4) 32.0
 
July 16, 2019, 2 a.m. 3.4 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A 2.9 μg/m3 (12) 33.0
 
July 16, 2019, 1 a.m. 3.4 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 48.0 ppb (37) 0.12 ppb (1) N/A 3.9 μg/m3 (16) 37.0
 
July 16, 2019, midnight 3.1 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 53.0 ppb (41) 0.11 ppb (1) N/A 3.0 μg/m3 (12) 41.0
 
July 15, 2019, 11 p.m. 3.4 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 57.0 ppb (44) 0.11 ppb (1) N/A 3.0 μg/m3 (12) 44.0
 
July 15, 2019, 10 p.m. 3.6 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 57.0 ppb (44) 0.11 ppb (1) N/A 3.9 μg/m3 (16) 44.0
 
July 15, 2019, 9 p.m. 3.8 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 50.0 ppb (38) 0.11 ppb (1) N/A 4.9 μg/m3 (20) 38.0
 
July 15, 2019, 8 p.m. 3.3 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 47.0 ppb (36) 0.1 ppb (1) N/A 5.0 μg/m3 (21) 36.0
 
July 15, 2019, 7 p.m. 3.8 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 45.0 ppb (35) 0.1 ppb (1) N/A 3.0 μg/m3 (12) 35.0
 
July 15, 2019, 6 p.m. 5.3 ppb (5) 1.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 43.0 ppb (33) 0.1 ppb (1) N/A 0.1 μg/m3 (0) 33.0
 
July 15, 2019, 5 p.m. 2.6 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) 0.1 ppb (1) N/A 0.0 μg/m3 (0) 32.0
 
July 15, 2019, 4 p.m. 3.2 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 38.0 ppb (29) 0.1 ppb (1) N/A 1.9 μg/m3 (8) 29.0
 
July 15, 2019, 3 p.m. 7.3 ppb (7) 2.4 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 28.0 ppb (22) 0.1 ppb (1) N/A 4.9 μg/m3 (20) 22.0
 
July 15, 2019, 2 p.m. 6.2 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 26.0 ppb (20) 0.12 ppb (1) N/A 3.0 μg/m3 (12) 20.0
 
July 15, 2019, 1 p.m. 9.8 ppb (9) 2.3 ppb (2) N/A 8.0 ppb (7) N/A 2.0 ppb (3) 22.0 ppb (17) 0.17 ppb (2) N/A 2.0 μg/m3 (8) 17.0
 
July 15, 2019, noon 6.7 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 21.0 ppb (16) 0.12 ppb (1) N/A 2.0 μg/m3 (8) 16.0
 
July 15, 2019, 11 a.m. 7.5 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) 0.1 ppb (1) N/A 2.9 μg/m3 (12) 15.0
 
July 15, 2019, 10 a.m. 7.4 ppb (7) 0.2 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 23.0 ppb (18) 0.09 ppb (1) N/A 3.0 μg/m3 (12) 18.0
 
July 15, 2019, 9 a.m. 3.3 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 31.0 ppb (24) 0.08 ppb (1) N/A 2.0 μg/m3 (8) 24.0
 
July 15, 2019, 8 a.m. 2.4 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.08 ppb (1) N/A 1.0 μg/m3 (4) 27.0
 
July 15, 2019, 7 a.m. 4.3 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (18) 0.12 ppb (1) N/A 3.9 μg/m3 (16) 18.0
 
July 15, 2019, 6 a.m. 3.9 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (21) 0.14 ppb (2) N/A 4.9 μg/m3 (20) 21.0
 
July 15, 2019, 5 a.m. 5.3 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (20) 0.14 ppb (2) N/A 5.9 μg/m3 (25) 25.0
 
July 15, 2019, 4 a.m. 5.0 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (20) 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
July 15, 2019, 3 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) 0.15 ppb (2) N/A 1.1 μg/m3 (5) 23.0
 
July 15, 2019, 2 a.m. 2.4 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 1.9 μg/m3 (8) 28.0
 
July 15, 2019, 1 a.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (33) 0.12 ppb (1) N/A 2.9 μg/m3 (12) 33.0
 
July 15, 2019, midnight 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (34) 0.11 ppb (1) N/A 2.0 μg/m3 (8) 34.0
 
July 14, 2019, 11 p.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) 0.11 ppb (1) N/A 0.0 μg/m3 (0) 35.0
 
July 14, 2019, 10 p.m. 1.3 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) 0.1 ppb (1) N/A -0.9 μg/m3 (0) 35.0
 
July 14, 2019, 9 p.m. 1.4 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) 0.11 ppb (1) N/A 1.9 μg/m3 (8) 33.0
 
July 14, 2019, 8 p.m. 1.4 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) 0.1 ppb (1) N/A 4.9 μg/m3 (20) 33.0
 
July 14, 2019, 7 p.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (32) 0.1 ppb (1) N/A 5.9 μg/m3 (25) 32.0
 
July 14, 2019, 6 p.m. 1.8 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (32) 0.11 ppb (1) N/A 1.1 μg/m3 (5) 32.0
 
July 14, 2019, 5 p.m. 1.7 ppb (2) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) 0.1 ppb (1) N/A 1.0 μg/m3 (4) 32.0