AQSQID: 380150003

Site Name: Bismarck Residential

Location: Bismarck (Bismarck Cathedral Area Historic Dist), ND

Reporting: True, Located: True

Current AQI: 28.0

Bismarck (Bismarck Cathedral Area Historic Dist) ND, US: 46.8253, -100.7681

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 19, 2020, 6 p.m. 9.8 ppb (9) 4.4 ppb (4) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 25.0 ppb (19) 0.37 ppb (4) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 19, 2020, 5 p.m. 10.7 ppb (10) 4.7 ppb (4) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 24.0 ppb (18) 0.37 ppb (4) N/A 9.1 μg/m3 (38) 38.0
 
Jan. 19, 2020, 4 p.m. 9.7 ppb (9) 3.8 ppb (4) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 22.0 ppb (17) 0.38 ppb (4) N/A 12.7 μg/m3 (51) 51.0
 
Jan. 19, 2020, 3 p.m. 9.4 ppb (9) 2.6 ppb (2) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 21.0 ppb (16) 0.38 ppb (4) N/A 10.5 μg/m3 (44) 44.0
 
Jan. 19, 2020, 2 p.m. 9.5 ppb (9) 1.5 ppb (1) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 20.0 ppb (15) 0.38 ppb (4) N/A 18.8 μg/m3 (64) 64.0
 
Jan. 19, 2020, 1 p.m. 12.1 ppb (11) 1.1 ppb (1) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 17.0 ppb (13) 0.39 ppb (4) N/A 12.5 μg/m3 (51) 51.0
 
Jan. 19, 2020, noon 10.7 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 18.0 ppb (14) 0.37 ppb (4) N/A 12.2 μg/m3 (50) 50.0
 
Jan. 19, 2020, 11 a.m. 10.9 ppb (10) 1.2 ppb (1) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 18.0 ppb (14) 0.36 ppb (4) N/A 13.1 μg/m3 (52) 52.0
 
Jan. 19, 2020, 10 a.m. 9.5 ppb (9) 0.9 ppb (1) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 19.0 ppb (15) 0.37 ppb (4) N/A 4.6 μg/m3 (19) 19.0
 
Jan. 19, 2020, 9 a.m. 7.3 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 21.0 ppb (16) 0.36 ppb (4) N/A 3.5 μg/m3 (15) 16.0
 
Jan. 19, 2020, 8 a.m. 5.6 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 23.0 ppb (18) 0.35 ppb (4) N/A 4.1 μg/m3 (17) 18.0
 
Jan. 19, 2020, 7 a.m. 5.1 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 23.0 ppb (18) 0.36 ppb (4) N/A 5.5 μg/m3 (23) 23.0
 
Jan. 19, 2020, 6 a.m. 5.4 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 23.0 ppb (18) 0.36 ppb (4) N/A 6.2 μg/m3 (26) 26.0
 
Jan. 19, 2020, 5 a.m. 5.7 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 23.0 ppb (18) 0.36 ppb (4) N/A 5.7 μg/m3 (24) 24.0
 
Jan. 19, 2020, 4 a.m. 5.3 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 24.0 ppb (18) 0.36 ppb (4) N/A 7.3 μg/m3 (30) 30.0
 
Jan. 19, 2020, 3 a.m. 5.3 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 25.0 ppb (19) 0.36 ppb (4) N/A 5.3 μg/m3 (22) 22.0
 
Jan. 19, 2020, 2 a.m. 5.2 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 27.0 ppb (21) 0.25 ppb (3) N/A 5.5 μg/m3 (23) 23.0
 
Jan. 19, 2020, 1 a.m. 4.5 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 27.0 ppb (21) 0.33 ppb (4) N/A 6.5 μg/m3 (27) 27.0
 
Jan. 19, 2020, midnight 4.9 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 27.0 ppb (21) 0.35 ppb (4) N/A 5.6 μg/m3 (23) 23.0
 
Jan. 18, 2020, 11 p.m. 5.2 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 27.0 ppb (21) 0.35 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2020, 10 p.m. 7.2 ppb (7) 1.9 ppb (2) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 26.0 ppb (20) 0.35 ppb (4) N/A 5.4 μg/m3 (23) 23.0
 
Jan. 18, 2020, 9 p.m. 7.8 ppb (7) 2.9 ppb (3) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 25.0 ppb (19) 0.35 ppb (4) N/A 5.3 μg/m3 (22) 22.0
 
Jan. 18, 2020, 8 p.m. 5.5 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 27.0 ppb (21) 0.35 ppb (4) N/A 6.1 μg/m3 (25) 25.0
 
Jan. 18, 2020, 7 p.m. 5.4 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 26.0 ppb (20) 0.35 ppb (4) N/A 5.7 μg/m3 (24) 24.0
 
Jan. 18, 2020, 6 p.m. 8.1 ppb (8) 4.0 ppb (4) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 24.0 ppb (18) 0.36 ppb (4) N/A 6.5 μg/m3 (27) 27.0
 
Jan. 18, 2020, 5 p.m. 10.2 ppb (9) 4.9 ppb (5) N/A 5.0 ppb (5) N/A 3.0 ppb (4) 23.0 ppb (18) 0.35 ppb (4) N/A 7.8 μg/m3 (32) 32.0
 
Jan. 18, 2020, 4 p.m. 9.7 ppb (9) 4.1 ppb (4) N/A 6.0 ppb (6) N/A 3.0 ppb (4) 22.0 ppb (17) 0.36 ppb (4) N/A 7.4 μg/m3 (31) 31.0
 
Jan. 18, 2020, 3 p.m. 9.4 ppb (9) 2.8 ppb (3) N/A 7.0 ppb (6) N/A 3.0 ppb (4) 20.0 ppb (15) 0.35 ppb (4) N/A 9.7 μg/m3 (40) 40.0
 
Jan. 18, 2020, 2 p.m. 9.4 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 3.0 ppb (4) 18.0 ppb (14) 0.35 ppb (4) N/A 10.6 μg/m3 (44) 44.0
 
Jan. 18, 2020, 1 p.m. 11.4 ppb (11) 0.8 ppb (1) N/A 11.0 ppb (10) N/A 3.0 ppb (4) 14.0 ppb (11) 0.36 ppb (4) N/A 10.7 μg/m3 (45) 45.0
 
Jan. 18, 2020, noon 10.6 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A 3.0 ppb (4) 15.0 ppb (12) 0.35 ppb (4) N/A 7.4 μg/m3 (31) 31.0
 
Jan. 18, 2020, 11 a.m. 7.6 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A 2.0 ppb (3) 18.0 ppb (14) 0.34 ppb (4) N/A 7.4 μg/m3 (31) 31.0
 
Jan. 18, 2020, 10 a.m. 10.0 ppb (9) 0.5 ppb (0) N/A 9.0 ppb (8) N/A 2.0 ppb (3) 17.0 ppb (13) 0.34 ppb (4) N/A 6.2 μg/m3 (26) 26.0
 
Jan. 18, 2020, 9 a.m. 5.8 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 21.0 ppb (16) 0.34 ppb (4) N/A 8.1 μg/m3 (34) 34.0
 
Jan. 18, 2020, 8 a.m. 4.1 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 24.0 ppb (18) 0.34 ppb (4) N/A 7.9 μg/m3 (33) 33.0
 
Jan. 18, 2020, 7 a.m. 4.1 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 25.0 ppb (19) 0.33 ppb (4) N/A 12.6 μg/m3 (51) 51.0
 
Jan. 18, 2020, 6 a.m. 4.2 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 26.0 ppb (20) 0.33 ppb (4) N/A 8.4 μg/m3 (35) 35.0
 
Jan. 18, 2020, 5 a.m. 5.3 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 26.0 ppb (20) 0.33 ppb (4) N/A 10.7 μg/m3 (45) 45.0
 
Jan. 18, 2020, 4 a.m. 5.1 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 27.0 ppb (21) 0.33 ppb (4) N/A 9.6 μg/m3 (40) 40.0
 
Jan. 18, 2020, 3 a.m. 5.3 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 27.0 ppb (21) 0.33 ppb (4) N/A 8.6 μg/m3 (36) 36.0
 
Jan. 18, 2020, 2 a.m. 6.7 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A 3.0 ppb (4) 25.0 ppb (19) 0.24 ppb (3) N/A 11.7 μg/m3 (49) 49.0
 
Jan. 18, 2020, 1 a.m. 7.3 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 24.0 ppb (18) 0.33 ppb (4) N/A 12.3 μg/m3 (51) 51.0
 
Jan. 18, 2020, midnight 9.4 ppb (9) 0.8 ppb (1) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 22.0 ppb (17) 0.34 ppb (4) N/A 6.1 μg/m3 (25) 25.0
 
Jan. 17, 2020, 11 p.m. 8.0 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 21.0 ppb (16) 0.37 ppb (4) N/A 4.7 μg/m3 (20) 20.0
 
Jan. 17, 2020, 10 p.m. 7.8 ppb (7) 1.1 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) 0.37 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2020, 9 p.m. 7.0 ppb (6) 1.2 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) 0.37 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2020, 8 p.m. 7.3 ppb (7) 1.6 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) 0.38 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2020, 7 p.m. 6.4 ppb (6) 1.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 20.0 ppb (15) 0.37 ppb (4) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 17, 2020, 6 p.m. 6.7 ppb (6) 1.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 21.0 ppb (16) 0.36 ppb (4) N/A 6.6 μg/m3 (28) 28.0
 
Jan. 17, 2020, 5 p.m. 6.0 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 22.0 ppb (17) 0.34 ppb (4) N/A 7.8 μg/m3 (32) 32.0
 
Jan. 17, 2020, 4 p.m. 5.3 ppb (5) 1.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (18) 0.34 ppb (4) N/A 9.8 μg/m3 (41) 41.0
 
Jan. 17, 2020, 3 p.m. 5.7 ppb (5) 1.1 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (18) 0.34 ppb (4) N/A 9.5 μg/m3 (40) 40.0
 
Jan. 17, 2020, 2 p.m. 6.3 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 22.0 ppb (17) 0.34 ppb (4) N/A 8.3 μg/m3 (35) 35.0
 
Jan. 17, 2020, 1 p.m. 5.8 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (18) 0.35 ppb (4) N/A 7.6 μg/m3 (32) 32.0
 
Jan. 17, 2020, noon 4.6 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (18) 0.32 ppb (4) N/A 9.6 μg/m3 (40) 40.0
 
Jan. 17, 2020, 11 a.m. 4.4 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (18) 0.31 ppb (3) N/A 8.5 μg/m3 (35) 35.0
 
Jan. 17, 2020, 10 a.m. 4.7 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (18) 0.32 ppb (4) N/A 9.9 μg/m3 (41) 41.0
 
Jan. 17, 2020, 9 a.m. 4.3 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (19) 0.31 ppb (3) N/A 9.8 μg/m3 (41) 41.0
 
Jan. 17, 2020, 8 a.m. 4.2 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (20) 0.31 ppb (3) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 17, 2020, 7 a.m. 4.1 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (21) 0.31 ppb (3) N/A 7.3 μg/m3 (30) 30.0
 
Jan. 17, 2020, 6 a.m. 3.9 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 28.0 ppb (22) 0.31 ppb (3) N/A 9.5 μg/m3 (40) 40.0
 
Jan. 17, 2020, 5 a.m. 4.6 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 28.0 ppb (22) 0.31 ppb (3) N/A 6.3 μg/m3 (26) 26.0
 
Jan. 17, 2020, 4 a.m. 4.6 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 29.0 ppb (22) 0.32 ppb (4) N/A 8.6 μg/m3 (36) 36.0
 
Jan. 17, 2020, 3 a.m. 4.8 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 30.0 ppb (23) 0.33 ppb (4) N/A 8.5 μg/m3 (35) 35.0
 
Jan. 17, 2020, 2 a.m. 4.7 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 29.0 ppb (22) 0.22 ppb (2) N/A 9.4 μg/m3 (39) 39.0
 
Jan. 17, 2020, 1 a.m. 5.7 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 29.0 ppb (22) 0.31 ppb (3) N/A 7.5 μg/m3 (31) 31.0
 
Jan. 17, 2020, midnight 5.1 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 30.0 ppb (23) 0.32 ppb (4) N/A 7.4 μg/m3 (31) 31.0
 
Jan. 16, 2020, 11 p.m. 5.5 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 30.0 ppb (23) 0.33 ppb (4) N/A 5.3 μg/m3 (22) 23.0
 
Jan. 16, 2020, 10 p.m. 5.2 ppb (5) 1.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 31.0 ppb (24) 0.33 ppb (4) N/A 5.1 μg/m3 (21) 24.0
 
Jan. 16, 2020, 9 p.m. 5.0 ppb (5) 1.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 32.0 ppb (25) 0.32 ppb (4) N/A 6.3 μg/m3 (26) 26.0
 
Jan. 16, 2020, 8 p.m. 6.9 ppb (6) 2.6 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 32.0 ppb (25) 0.33 ppb (4) N/A 6.9 μg/m3 (29) 29.0
 
Jan. 16, 2020, 7 p.m. 6.2 ppb (6) 2.4 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 31.0 ppb (24) 0.32 ppb (4) N/A 5.4 μg/m3 (23) 24.0
 
Jan. 16, 2020, 6 p.m. 5.4 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 31.0 ppb (24) 0.32 ppb (4) N/A 6.1 μg/m3 (25) 25.0
 
Jan. 16, 2020, 5 p.m. 5.7 ppb (5) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 29.0 ppb (22) 0.32 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 16, 2020, 4 p.m. 6.5 ppb (6) 2.3 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 28.0 ppb (22) 0.32 ppb (4) N/A 6.4 μg/m3 (27) 27.0
 
Jan. 16, 2020, 3 p.m. 10.7 ppb (10) 2.8 ppb (3) N/A 8.0 ppb (7) N/A 2.0 ppb (3) 23.0 ppb (18) 0.33 ppb (4) N/A 6.6 μg/m3 (28) 28.0
 
Jan. 16, 2020, 2 p.m. 13.8 ppb (13) 1.5 ppb (1) N/A 12.0 ppb (11) N/A 2.0 ppb (3) 19.0 ppb (15) 0.35 ppb (4) N/A 10.6 μg/m3 (44) 44.0
 
Jan. 16, 2020, 1 p.m. 20.6 ppb (19) 1.8 ppb (2) N/A 19.0 ppb (18) N/A 1.0 ppb (1) 13.0 ppb (10) 0.38 ppb (4) N/A 14.6 μg/m3 (56) 56.0
 
Jan. 16, 2020, noon 18.8 ppb (17) 1.3 ppb (1) N/A 18.0 ppb (17) N/A 1.0 ppb (1) 14.0 ppb (11) 0.38 ppb (4) N/A 13.7 μg/m3 (54) 54.0
 
Jan. 16, 2020, 11 a.m. 41.0 ppb (38) 9.8 ppb (9) N/A 31.0 ppb (29) N/A 1.0 ppb (1) 3.0 ppb (2) 0.47 ppb (5) N/A 12.9 μg/m3 (52) 52.0
 
Jan. 16, 2020, 10 a.m. 43.3 ppb (40) 9.8 ppb (9) N/A 33.0 ppb (31) N/A 1.0 ppb (1) 2.0 ppb (2) 0.49 ppb (5) N/A 15.1 μg/m3 (57) 57.0
 
Jan. 16, 2020, 9 a.m. 74.1 ppb (71) 33.4 ppb (31) N/A 41.0 ppb (38) N/A 1.0 ppb (1) 0.0 ppb (0) 0.62 ppb (7) N/A 9.9 μg/m3 (41) 71.0
 
Jan. 16, 2020, 8 a.m. 41.6 ppb (39) 10.5 ppb (10) N/A 31.0 ppb (29) N/A 1.0 ppb (1) 4.0 ppb (3) 0.58 ppb (6) N/A 9.0 μg/m3 (38) 39.0
 
Jan. 16, 2020, 7 a.m. 36.3 ppb (34) 7.9 ppb (7) N/A 28.0 ppb (26) N/A 2.0 ppb (3) 7.0 ppb (5) 0.5 ppb (6) N/A 6.8 μg/m3 (28) 34.0
 
Jan. 16, 2020, 6 a.m. 23.1 ppb (21) 1.6 ppb (1) N/A 21.0 ppb (19) N/A 2.0 ppb (3) 13.0 ppb (10) 0.38 ppb (4) N/A 4.9 μg/m3 (20) 21.0
 
Jan. 16, 2020, 5 a.m. 21.0 ppb (19) 1.9 ppb (2) N/A 19.0 ppb (18) N/A 1.0 ppb (1) 14.0 ppb (11) 0.39 ppb (4) N/A 7.6 μg/m3 (32) 32.0
 
Jan. 16, 2020, 4 a.m. 28.5 ppb (26) 3.2 ppb (3) N/A 25.0 ppb (23) N/A 1.0 ppb (1) 9.0 ppb (7) 0.47 ppb (5) N/A 10.6 μg/m3 (44) 44.0
 
Jan. 16, 2020, 3 a.m. 39.2 ppb (36) 6.3 ppb (6) N/A 33.0 ppb (31) N/A 1.0 ppb (1) 4.0 ppb (3) 0.49 ppb (5) N/A 10.6 μg/m3 (44) 44.0
 
Jan. 16, 2020, 2 a.m. 36.5 ppb (34) 6.3 ppb (6) N/A 30.0 ppb (28) N/A 1.0 ppb (1) 6.0 ppb (5) 0.28 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2020, 1 a.m. 18.9 ppb (18) 1.9 ppb (2) N/A 17.0 ppb (16) N/A 2.0 ppb (3) 17.0 ppb (13) 0.36 ppb (4) N/A 12.3 μg/m3 (51) 51.0
 
Jan. 16, 2020, midnight 20.8 ppb (19) 2.8 ppb (3) N/A 18.0 ppb (17) N/A 2.0 ppb (3) 16.0 ppb (12) 0.4 ppb (4) N/A 15.6 μg/m3 (58) 58.0
 
Jan. 15, 2020, 11 p.m. 16.4 ppb (15) 1.9 ppb (2) N/A 15.0 ppb (14) N/A 2.0 ppb (3) 19.0 ppb (15) 0.38 ppb (4) N/A 14.9 μg/m3 (56) 56.0
 
Jan. 15, 2020, 10 p.m. 12.5 ppb (12) 3.4 ppb (3) N/A 9.0 ppb (8) N/A 2.0 ppb (3) 24.0 ppb (18) 0.33 ppb (4) N/A 7.3 μg/m3 (30) 30.0
 
Jan. 15, 2020, 9 p.m. 10.2 ppb (9) 4.0 ppb (4) N/A 6.0 ppb (6) N/A 3.0 ppb (4) 27.0 ppb (21) 0.32 ppb (4) N/A 5.8 μg/m3 (24) 24.0
 
Jan. 15, 2020, 8 p.m. 6.7 ppb (6) 3.1 ppb (3) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 30.0 ppb (23) 0.31 ppb (3) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 15, 2020, 7 p.m. 7.5 ppb (7) 3.7 ppb (3) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 29.0 ppb (22) 0.31 ppb (3) N/A 7.6 μg/m3 (32) 32.0
 
Jan. 15, 2020, 6 p.m. 10.1 ppb (9) 5.3 ppb (5) N/A 5.0 ppb (5) N/A 5.0 ppb (7) 26.0 ppb (20) 0.32 ppb (4) N/A 7.7 μg/m3 (32) 32.0
 
Jan. 15, 2020, 5 p.m. 10.2 ppb (9) 5.3 ppb (5) N/A 5.0 ppb (5) N/A 6.0 ppb (9) 24.0 ppb (18) 0.32 ppb (4) N/A 6.1 μg/m3 (25) 25.0
 
Jan. 15, 2020, 4 p.m. 10.4 ppb (10) 4.9 ppb (5) N/A 6.0 ppb (6) N/A 6.0 ppb (9) 23.0 ppb (18) 0.32 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2020, 3 p.m. 10.8 ppb (10) 3.6 ppb (3) N/A 7.0 ppb (6) N/A 4.0 ppb (6) 22.0 ppb (17) 0.36 ppb (4) N/A 7.4 μg/m3 (31) 31.0
 
Jan. 15, 2020, 2 p.m. 16.1 ppb (15) 3.2 ppb (3) N/A 13.0 ppb (12) N/A 2.0 ppb (3) 18.0 ppb (14) 0.42 ppb (5) N/A 4.2 μg/m3 (18) 18.0
 
Jan. 15, 2020, 1 p.m. 13.4 ppb (12) 1.8 ppb (2) N/A 12.0 ppb (11) N/A 2.0 ppb (3) 19.0 ppb (15) 0.41 ppb (5) N/A 3.9 μg/m3 (16) 16.0
 
Jan. 15, 2020, noon 11.6 ppb (11) 1.7 ppb (2) N/A 10.0 ppb (9) N/A 2.0 ppb (3) 21.0 ppb (16) 0.37 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2020, 11 a.m. 10.0 ppb (9) 1.3 ppb (1) N/A 9.0 ppb (8) N/A 2.0 ppb (3) 22.0 ppb (17) 0.33 ppb (4) N/A 5.9 μg/m3 (25) 25.0
 
Jan. 15, 2020, 10 a.m. 6.8 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 25.0 ppb (19) 0.31 ppb (3) N/A 5.1 μg/m3 (21) 21.0
 
Jan. 15, 2020, 9 a.m. 5.6 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 26.0 ppb (20) 0.3 ppb (3) N/A 3.7 μg/m3 (15) 20.0
 
Jan. 15, 2020, 8 a.m. 5.0 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 27.0 ppb (21) 0.3 ppb (3) N/A 3.0 μg/m3 (12) 21.0
 
Jan. 15, 2020, 7 a.m. 4.5 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 28.0 ppb (22) 0.3 ppb (3) N/A 4.9 μg/m3 (20) 22.0
 
Jan. 15, 2020, 6 a.m. 4.2 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 29.0 ppb (22) 0.3 ppb (3) N/A 4.8 μg/m3 (20) 22.0
 
Jan. 15, 2020, 5 a.m. 3.8 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 29.0 ppb (22) 0.29 ppb (3) N/A 5.4 μg/m3 (23) 23.0
 
Jan. 15, 2020, 4 a.m. 3.7 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 29.0 ppb (22) 0.3 ppb (3) N/A 3.6 μg/m3 (15) 22.0
 
Jan. 15, 2020, 3 a.m. 4.0 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 29.0 ppb (22) 0.31 ppb (3) N/A 4.4 μg/m3 (18) 22.0
 
Jan. 15, 2020, 2 a.m. 4.1 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 30.0 ppb (23) 0.2 ppb (2) N/A 6.4 μg/m3 (27) 27.0
 
Jan. 15, 2020, 1 a.m. 4.9 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 28.0 ppb (22) 0.29 ppb (3) N/A 6.4 μg/m3 (27) 27.0
 
Jan. 15, 2020, midnight 6.2 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 27.0 ppb (21) 0.32 ppb (4) N/A 5.6 μg/m3 (23) 23.0
 
Jan. 14, 2020, 11 p.m. 4.9 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 29.0 ppb (22) 0.32 ppb (4) N/A 2.2 μg/m3 (9) 22.0
 
Jan. 14, 2020, 10 p.m. 4.7 ppb (4) 1.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 30.0 ppb (23) 0.32 ppb (4) N/A 3.8 μg/m3 (16) 23.0
 
Jan. 14, 2020, 9 p.m. 6.5 ppb (6) 2.2 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 29.0 ppb (22) 0.3 ppb (3) N/A 5.3 μg/m3 (22) 22.0
 
Jan. 14, 2020, 8 p.m. 6.1 ppb (6) 2.5 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 28.0 ppb (22) 0.28 ppb (3) N/A 4.8 μg/m3 (20) 22.0
 
Jan. 14, 2020, 7 p.m. 5.1 ppb (5) 2.3 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 28.0 ppb (22) 0.28 ppb (3) N/A 4.0 μg/m3 (17) 22.0
 
Jan. 14, 2020, 6 p.m. 6.5 ppb (6) 3.1 ppb (3) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 27.0 ppb (21) 0.29 ppb (3) N/A 2.7 μg/m3 (11) 21.0
 
Jan. 14, 2020, 5 p.m. 6.1 ppb (6) 2.9 ppb (3) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 26.0 ppb (20) 0.3 ppb (3) N/A 1.1 μg/m3 (5) 20.0
 
Jan. 14, 2020, 4 p.m. 6.9 ppb (6) 2.8 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 26.0 ppb (20) 0.3 ppb (3) N/A 0.2 μg/m3 (1) 20.0
 
Jan. 14, 2020, 3 p.m. 8.4 ppb (8) 2.4 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 24.0 ppb (18) 0.31 ppb (3) N/A 2.7 μg/m3 (11) 18.0
 
Jan. 14, 2020, 2 p.m. 10.4 ppb (10) 2.4 ppb (2) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 21.0 ppb (16) 0.32 ppb (4) N/A 4.2 μg/m3 (18) 18.0
 
Jan. 14, 2020, 1 p.m. 8.7 ppb (8) 1.5 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 22.0 ppb (17) 0.33 ppb (4) N/A 2.7 μg/m3 (11) 17.0
 
Jan. 14, 2020, noon 8.1 ppb (8) 1.2 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 23.0 ppb (18) 0.3 ppb (3) N/A 3.0 μg/m3 (12) 18.0
 
Jan. 14, 2020, 11 a.m. 6.2 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 24.0 ppb (18) 0.28 ppb (3) N/A 5.1 μg/m3 (21) 21.0
 
Jan. 14, 2020, 10 a.m. 5.9 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 23.0 ppb (18) 0.28 ppb (3) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 14, 2020, 9 a.m. 8.5 ppb (8) 0.5 ppb (0) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 19.0 ppb (15) 0.28 ppb (3) N/A 7.3 μg/m3 (30) 30.0
 
Jan. 14, 2020, 8 a.m. 8.2 ppb (8) 0.5 ppb (0) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 19.0 ppb (15) 0.28 ppb (3) N/A 7.4 μg/m3 (31) 31.0
 
Jan. 14, 2020, 7 a.m. 5.8 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 22.0 ppb (17) 0.28 ppb (3) N/A 5.3 μg/m3 (22) 22.0
 
Jan. 14, 2020, 6 a.m. 7.5 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 20.0 ppb (15) 0.27 ppb (3) N/A 5.5 μg/m3 (23) 23.0
 
Jan. 14, 2020, 5 a.m. 6.7 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 20.0 ppb (15) 0.27 ppb (3) N/A 5.4 μg/m3 (23) 23.0
 
Jan. 14, 2020, 4 a.m. 6.9 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 21.0 ppb (16) 0.28 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2020, 3 a.m. 6.6 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 19.0 ppb (15) 0.28 ppb (3) N/A 10.5 μg/m3 (44) 44.0
 
Jan. 14, 2020, 2 a.m. 7.9 ppb (7) 1.3 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) 0.18 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 14, 2020, 1 a.m. 7.6 ppb (7) 1.3 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) 0.27 ppb (3) N/A 16.4 μg/m3 (59) 59.0
 
Jan. 14, 2020, midnight 8.0 ppb (7) 1.4 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) 0.29 ppb (3) N/A 14.0 μg/m3 (54) 54.0
 
Jan. 13, 2020, 11 p.m. 9.0 ppb (8) 1.5 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) 0.31 ppb (3) N/A 10.5 μg/m3 (44) 44.0
 
Jan. 13, 2020, 10 p.m. 10.8 ppb (10) 1.8 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 18.0 ppb (14) 0.32 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 13, 2020, 9 p.m. 7.9 ppb (7) 1.1 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 17.0 ppb (13) 0.29 ppb (3) N/A 9.5 μg/m3 (40) 40.0
 
Jan. 13, 2020, 8 p.m. 6.1 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 19.0 ppb (15) 0.28 ppb (3) N/A 11.1 μg/m3 (46) 46.0
 
Jan. 13, 2020, 7 p.m. 5.4 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 20.0 ppb (15) 0.28 ppb (3) N/A 13.4 μg/m3 (53) 53.0
 
Jan. 13, 2020, 6 p.m. 6.1 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 20.0 ppb (15) 0.28 ppb (3) N/A 7.7 μg/m3 (32) 32.0
 
Jan. 13, 2020, 5 p.m. 5.3 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (17) 0.27 ppb (3) N/A 9.5 μg/m3 (40) 40.0
 
Jan. 13, 2020, 4 p.m. 5.8 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (18) 0.28 ppb (3) N/A 7.8 μg/m3 (32) 32.0
 
Jan. 13, 2020, 3 p.m. 8.3 ppb (8) 1.2 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 21.0 ppb (16) 0.32 ppb (4) N/A 7.6 μg/m3 (32) 32.0
 
Jan. 13, 2020, 2 p.m. 9.8 ppb (9) 1.1 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 19.0 ppb (15) 0.35 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 13, 2020, 1 p.m. 12.8 ppb (12) 1.6 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 16.0 ppb (12) 0.37 ppb (4) N/A 8.4 μg/m3 (35) 35.0
 
Jan. 13, 2020, noon 15.6 ppb (14) 1.4 ppb (1) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 12.0 ppb (9) 0.32 ppb (4) N/A 11.5 μg/m3 (48) 48.0
 
Jan. 13, 2020, 11 a.m. 10.0 ppb (9) 0.5 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 15.0 ppb (12) 0.29 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 13, 2020, 10 a.m. 14.5 ppb (13) 0.9 ppb (1) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 12.0 ppb (9) 0.34 ppb (4) N/A 8.5 μg/m3 (35) 35.0
 
Jan. 13, 2020, 9 a.m. 12.3 ppb (11) 0.5 ppb (0) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 14.0 ppb (11) 0.3 ppb (3) N/A 6.8 μg/m3 (28) 28.0
 
Jan. 13, 2020, 8 a.m. 11.0 ppb (10) 0.5 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 16.0 ppb (12) 0.3 ppb (3) N/A 6.6 μg/m3 (28) 28.0
 
Jan. 13, 2020, 7 a.m. 11.4 ppb (11) 0.5 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 16.0 ppb (12) 0.31 ppb (3) N/A 5.9 μg/m3 (25) 25.0
 
Jan. 13, 2020, 6 a.m. 9.5 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 18.0 ppb (14) 0.29 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2020, 5 a.m. 6.0 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 21.0 ppb (16) 0.27 ppb (3) N/A 4.1 μg/m3 (17) 17.0
 
Jan. 13, 2020, 4 a.m. 6.4 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 21.0 ppb (16) 0.28 ppb (3) N/A 5.1 μg/m3 (21) 21.0
 
Jan. 13, 2020, 3 a.m. 4.8 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (18) 0.27 ppb (3) N/A 7.7 μg/m3 (32) 32.0
 
Jan. 13, 2020, 2 a.m. 5.1 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (18) 0.17 ppb (2) N/A 6.8 μg/m3 (28) 28.0
 
Jan. 13, 2020, 1 a.m. 6.6 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (18) 0.26 ppb (3) N/A 6.4 μg/m3 (27) 27.0
 
Jan. 13, 2020, midnight 4.9 ppb (5) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (19) 0.27 ppb (3) N/A 6.1 μg/m3 (25) 25.0
 
Jan. 12, 2020, 11 p.m. 4.3 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (20) 0.27 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 12, 2020, 10 p.m. 4.0 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) 0.26 ppb (3) N/A 6.8 μg/m3 (28) 28.0
 
Jan. 12, 2020, 9 p.m. 3.5 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) 0.26 ppb (3) N/A 7.6 μg/m3 (32) 32.0
 
Jan. 12, 2020, 8 p.m. 3.4 ppb (3) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) 0.26 ppb (3) N/A 5.6 μg/m3 (23) 23.0
 
Jan. 12, 2020, 7 p.m. 3.9 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) 0.26 ppb (3) N/A 8.2 μg/m3 (34) 34.0