AQSQID: 490353013

Site Name: Herriman #3

Location: Herriman, UT

Reporting: True, Located: True

Current AQI: 28.0

Herriman UT, US: 40.496408, -112.036305

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 22, 2019, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 36.0 ppb (28) N/A 4.0 μg/m3 (4) 0.4 μg/m3 (2) 28.0
 
Jan. 22, 2019, 6 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) N/A 4.0 μg/m3 (4) 0.9 μg/m3 (4) 27.0
 
Jan. 22, 2019, 5 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) N/A 3.0 μg/m3 (3) 0.6 μg/m3 (2) 28.0
 
Jan. 22, 2019, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 40.0 ppb (31) N/A 1.0 μg/m3 (1) 0.3 μg/m3 (1) 31.0
 
Jan. 22, 2019, 3 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 38.0 ppb (29) N/A 2.0 μg/m3 (2) 0.4 μg/m3 (2) 29.0
 
Jan. 22, 2019, 2 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 36.0 ppb (28) N/A 3.0 μg/m3 (3) 0.6 μg/m3 (2) 28.0
 
Jan. 22, 2019, 1 a.m. -1.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 40.0 ppb (31) N/A 2.0 μg/m3 (2) 0.3 μg/m3 (1) 31.0
 
Jan. 22, 2019, midnight -1.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 39.0 ppb (30) N/A 2.0 μg/m3 (2) 0.4 μg/m3 (2) 30.0
 
Jan. 21, 2019, 11 p.m. -1.0 ppb (0) 1.0 ppb (1) N/A N/A N/A N/A 39.0 ppb (30) N/A 2.0 μg/m3 (2) 0.4 μg/m3 (2) 30.0
 
Jan. 21, 2019, 10 p.m. -1.0 ppb (0) 1.0 ppb (1) N/A N/A N/A N/A 38.0 ppb (29) N/A 3.0 μg/m3 (3) 0.6 μg/m3 (2) 29.0
 
Jan. 21, 2019, 9 p.m. -2.0 ppb (0) 1.0 ppb (1) N/A N/A N/A N/A 38.0 ppb (29) N/A 2.0 μg/m3 (2) 0.2 μg/m3 (1) 29.0
 
Jan. 21, 2019, 8 p.m. -2.0 ppb (0) 1.0 ppb (1) N/A N/A N/A N/A 39.0 ppb (30) N/A 1.0 μg/m3 (1) 0.1 μg/m3 (0) 30.0
 
Jan. 21, 2019, 7 p.m. -1.0 ppb (0) 1.0 ppb (1) N/A N/A N/A N/A 41.0 ppb (32) N/A 1.0 μg/m3 (1) 0.1 μg/m3 (0) 32.0
 
Jan. 21, 2019, 6 p.m. 0.0 ppb (0) 1.0 ppb (1) N/A N/A N/A N/A 41.0 ppb (32) N/A 1.0 μg/m3 (1) 0.1 μg/m3 (0) 32.0
 
Jan. 21, 2019, 5 p.m. -1.0 ppb (0) 1.0 ppb (1) N/A N/A N/A N/A 42.0 ppb (32) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 32.0
 
Jan. 21, 2019, 4 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A 40.0 ppb (31) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 31.0
 
Jan. 21, 2019, 3 p.m. 10.0 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A N/A 18.0 ppb (14) N/A 1.0 μg/m3 (1) 0.3 μg/m3 (1) 14.0
 
Jan. 21, 2019, 2 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 19.0 ppb (15) N/A 2.0 μg/m3 (2) 0.8 μg/m3 (3) 15.0
 
Jan. 21, 2019, 1 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (18) N/A 6.0 μg/m3 (5) 2.2 μg/m3 (9) 18.0
 
Jan. 21, 2019, noon 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 27.0 ppb (21) N/A 7.0 μg/m3 (6) 3.1 μg/m3 (13) 21.0
 
Jan. 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 4.0 μg/m3 (4) 1.2 μg/m3 (5) 26.0
 
Jan. 21, 2019, 10 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 36.0 ppb (28) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 28.0
 
Jan. 21, 2019, 9 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 36.0 ppb (28) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 28.0
 
Jan. 21, 2019, 8 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 35.0 ppb (27) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 27.0
 
Jan. 21, 2019, 7 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 35.0 ppb (27) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 27.0
 
Jan. 21, 2019, 6 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 36.0 ppb (28) N/A 1.0 μg/m3 (1) -0.1 μg/m3 (0) 28.0
 
Jan. 21, 2019, 5 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 36.0 ppb (28) N/A 1.0 μg/m3 (1) -0.1 μg/m3 (0) 28.0
 
Jan. 21, 2019, 4 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 37.0 ppb (28) N/A 1.0 μg/m3 (1) -0.1 μg/m3 (0) 28.0
 
Jan. 21, 2019, 3 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 37.0 ppb (28) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 28.0
 
Jan. 21, 2019, 2 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 38.0 ppb (29) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 29.0
 
Jan. 21, 2019, 1 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 38.0 ppb (29) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 29.0
 
Jan. 21, 2019, midnight -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 37.0 ppb (28) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 28.0
 
Jan. 20, 2019, 11 p.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 37.0 ppb (28) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 28.0
 
Jan. 20, 2019, 10 p.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 37.0 ppb (28) N/A 2.0 μg/m3 (2) 0.0 μg/m3 (0) 28.0
 
Jan. 20, 2019, 9 p.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 37.0 ppb (28) N/A 2.0 μg/m3 (2) 0.0 μg/m3 (0) 28.0
 
Jan. 20, 2019, 8 p.m. -1.0 ppb (0) 1.0 ppb (1) N/A N/A N/A N/A 35.0 ppb (27) N/A 2.0 μg/m3 (2) 0.3 μg/m3 (1) 27.0
 
Jan. 20, 2019, 7 p.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 38.0 ppb (29) N/A 1.0 μg/m3 (1) -0.2 μg/m3 (0) 29.0
 
Jan. 20, 2019, 6 p.m. -1.0 ppb (0) 1.0 ppb (1) N/A N/A N/A N/A 35.0 ppb (27) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 27.0
 
Jan. 20, 2019, 5 p.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 35.0 ppb (27) N/A 1.0 μg/m3 (1) -0.1 μg/m3 (0) 27.0
 
Jan. 20, 2019, 4 p.m. -1.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 35.0 ppb (27) N/A 1.0 μg/m3 (1) -0.1 μg/m3 (0) 27.0
 
Jan. 20, 2019, 3 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 33.0 ppb (25) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 25.0
 
Jan. 20, 2019, 2 p.m. 0.0 ppb (0) 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A 33.0 ppb (25) N/A 1.0 μg/m3 (1) -0.1 μg/m3 (0) 25.0
 
Jan. 20, 2019, 1 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 32.0 ppb (25) N/A 1.0 μg/m3 (1) -0.1 μg/m3 (0) 25.0
 
Jan. 20, 2019, noon -1.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 34.0 ppb (26) N/A 1.0 μg/m3 (1) -0.1 μg/m3 (0) 26.0
 
Jan. 20, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 1.0 μg/m3 (1) -0.1 μg/m3 (0) 27.0
 
Jan. 20, 2019, 10 a.m. -1.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 36.0 ppb (28) N/A 1.0 μg/m3 (1) -0.1 μg/m3 (0) 28.0
 
Jan. 20, 2019, 9 a.m. -1.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 37.0 ppb (28) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 28.0
 
Jan. 20, 2019, 8 a.m. -1.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 38.0 ppb (29) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 29.0
 
Jan. 20, 2019, 7 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 40.0 ppb (31) N/A 1.0 μg/m3 (1) -0.2 μg/m3 (0) 31.0
 
Jan. 20, 2019, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) N/A 3.0 μg/m3 (3) -0.3 μg/m3 (0) 28.0
 
Jan. 20, 2019, 5 a.m. -1.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 40.0 ppb (31) N/A 2.0 μg/m3 (2) -0.7 μg/m3 (0) 31.0
 
Jan. 20, 2019, 4 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) N/A 4.0 μg/m3 (4) -0.2 μg/m3 (0) 28.0
 
Jan. 20, 2019, 3 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) N/A 5.0 μg/m3 (5) 0.3 μg/m3 (1) 27.0
 
Jan. 20, 2019, 2 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 29.0 ppb (22) N/A 9.0 μg/m3 (8) 1.4 μg/m3 (6) 22.0
 
Jan. 20, 2019, 1 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (22) N/A 8.0 μg/m3 (7) 1.1 μg/m3 (5) 22.0
 
Jan. 20, 2019, midnight 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) N/A 4.0 μg/m3 (4) -0.3 μg/m3 (0) 27.0
 
Jan. 19, 2019, 11 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) N/A 6.0 μg/m3 (5) 1.1 μg/m3 (5) 30.0
 
Jan. 19, 2019, 10 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 42.0 ppb (32) N/A 3.0 μg/m3 (3) -0.4 μg/m3 (0) 32.0
 
Jan. 19, 2019, 9 p.m. -1.0 ppb (0) 1.0 ppb (1) N/A N/A N/A N/A 42.0 ppb (32) N/A 3.0 μg/m3 (3) -0.4 μg/m3 (0) 32.0
 
Jan. 19, 2019, 8 p.m. -1.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 42.0 ppb (32) N/A 2.0 μg/m3 (2) -0.4 μg/m3 (0) 32.0
 
Jan. 19, 2019, 7 p.m. -1.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 43.0 ppb (33) N/A 2.0 μg/m3 (2) -0.6 μg/m3 (0) 33.0
 
Jan. 19, 2019, 6 p.m. -1.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 42.0 ppb (32) N/A 2.0 μg/m3 (2) -0.6 μg/m3 (0) 32.0
 
Jan. 19, 2019, 5 p.m. -1.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 42.0 ppb (32) N/A 2.0 μg/m3 (2) -0.6 μg/m3 (0) 32.0
 
Jan. 19, 2019, 4 p.m. -1.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 41.0 ppb (32) N/A 2.0 μg/m3 (2) -0.4 μg/m3 (0) 32.0
 
Jan. 19, 2019, 3 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) N/A 3.0 μg/m3 (3) 0.2 μg/m3 (1) 26.0
 
Jan. 19, 2019, 2 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) N/A 4.0 μg/m3 (4) 0.5 μg/m3 (2) 28.0
 
Jan. 19, 2019, 1 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) N/A 5.0 μg/m3 (5) 1.1 μg/m3 (5) 27.0
 
Jan. 19, 2019, noon 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) N/A 6.0 μg/m3 (5) 1.4 μg/m3 (6) 27.0
 
Jan. 19, 2019, 11 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A N/A 7.0 μg/m3 (6) 2.0 μg/m3 (8) 8.0
 
Jan. 19, 2019, 10 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) N/A 8.0 μg/m3 (7) 2.0 μg/m3 (8) 25.0
 
Jan. 19, 2019, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) N/A 8.0 μg/m3 (7) 1.8 μg/m3 (8) 29.0
 
Jan. 19, 2019, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 38.0 ppb (29) N/A 6.0 μg/m3 (5) 1.3 μg/m3 (5) 29.0
 
Jan. 19, 2019, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 38.0 ppb (29) N/A 7.0 μg/m3 (6) 2.3 μg/m3 (10) 29.0
 
Jan. 19, 2019, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) N/A 5.0 μg/m3 (5) 2.6 μg/m3 (11) 27.0
 
Jan. 19, 2019, 5 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) N/A 3.0 μg/m3 (3) 2.1 μg/m3 (9) 25.0
 
Jan. 19, 2019, 4 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) N/A 2.0 μg/m3 (2) 1.7 μg/m3 (7) 27.0
 
Jan. 19, 2019, 3 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (23) N/A 3.0 μg/m3 (3) 1.9 μg/m3 (8) 23.0
 
Jan. 19, 2019, 2 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) N/A 3.0 μg/m3 (3) 2.0 μg/m3 (8) 21.0
 
Jan. 19, 2019, 1 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (22) N/A 2.0 μg/m3 (2) 1.5 μg/m3 (6) 22.0
 
Jan. 19, 2019, midnight 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (26) N/A 2.0 μg/m3 (2) 1.1 μg/m3 (5) 26.0
 
Jan. 18, 2019, 11 p.m. 0.0 ppb (0) 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A 36.0 ppb (28) N/A 2.0 μg/m3 (2) 0.8 μg/m3 (3) 28.0
 
Jan. 18, 2019, 10 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A 38.0 ppb (29) N/A 2.0 μg/m3 (2) 0.9 μg/m3 (4) 29.0
 
Jan. 18, 2019, 9 p.m. 0.0 ppb (0) 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A 37.0 ppb (28) N/A 2.0 μg/m3 (2) 0.8 μg/m3 (3) 28.0
 
Jan. 18, 2019, 8 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) N/A 3.0 μg/m3 (3) 1.9 μg/m3 (8) 27.0
 
Jan. 18, 2019, 7 p.m. 7.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (27) N/A 4.0 μg/m3 (4) 2.5 μg/m3 (10) 27.0
 
Jan. 18, 2019, 6 p.m. 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (32) N/A 2.0 μg/m3 (2) 0.8 μg/m3 (3) 32.0
 
Jan. 18, 2019, 5 p.m. 3.0 ppb (3) 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) N/A 1.0 μg/m3 (1) 0.6 μg/m3 (2) 32.0
 
Jan. 18, 2019, 4 p.m. 10.0 ppb (9) 3.0 ppb (3) N/A 7.0 ppb (6) N/A N/A 36.0 ppb (28) N/A 3.0 μg/m3 (3) 1.6 μg/m3 (7) 28.0
 
Jan. 18, 2019, 3 p.m. 8.0 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 35.0 ppb (27) N/A 3.0 μg/m3 (3) 1.8 μg/m3 (8) 27.0
 
Jan. 18, 2019, 2 p.m. 9.0 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A 35.0 ppb (27) N/A 3.0 μg/m3 (3) 1.7 μg/m3 (7) 27.0
 
Jan. 18, 2019, 1 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) N/A 2.0 μg/m3 (2) 0.9 μg/m3 (4) 31.0
 
Jan. 18, 2019, noon -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 47.0 ppb (36) N/A 1.0 μg/m3 (1) 0.1 μg/m3 (0) 36.0
 
Jan. 18, 2019, 11 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 47.0 ppb (36) N/A 1.0 μg/m3 (1) 0.1 μg/m3 (0) 36.0
 
Jan. 18, 2019, 10 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) N/A 1.0 μg/m3 (1) 0.4 μg/m3 (2) 29.0
 
Jan. 18, 2019, 9 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) N/A 1.0 μg/m3 (1) 0.6 μg/m3 (2) 29.0
 
Jan. 18, 2019, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 41.0 ppb (32) N/A 1.0 μg/m3 (1) 0.4 μg/m3 (2) 32.0
 
Jan. 18, 2019, 7 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (32) N/A 1.0 μg/m3 (1) 0.3 μg/m3 (1) 32.0
 
Jan. 18, 2019, 6 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 46.0 ppb (35) N/A 1.0 μg/m3 (1) -0.1 μg/m3 (0) 35.0
 
Jan. 18, 2019, 5 a.m. -1.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 48.0 ppb (37) N/A 1.0 μg/m3 (1) -0.3 μg/m3 (0) 37.0
 
Jan. 18, 2019, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 40.0 ppb (31) N/A 1.0 μg/m3 (1) -0.2 μg/m3 (0) 31.0
 
Jan. 18, 2019, 3 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 39.0 ppb (30) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 30.0
 
Jan. 18, 2019, 2 a.m. -1.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 44.0 ppb (34) N/A 1.0 μg/m3 (1) -0.5 μg/m3 (0) 34.0
 
Jan. 18, 2019, 1 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) N/A 1.0 μg/m3 (1) 0.1 μg/m3 (0) 31.0
 
Jan. 18, 2019, midnight 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) N/A 2.0 μg/m3 (2) -0.2 μg/m3 (0) 25.0
 
Jan. 17, 2019, 11 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 23.0
 
Jan. 17, 2019, 10 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) N/A 1.0 μg/m3 (1) 0.1 μg/m3 (0) 25.0
 
Jan. 17, 2019, 9 p.m. 0.0 ppb (0) 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A 38.0 ppb (29) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 29.0
 
Jan. 17, 2019, 8 p.m. 0.0 ppb (0) 1.0 ppb (1) N/A N/A N/A N/A 39.0 ppb (30) N/A 1.0 μg/m3 (1) -0.1 μg/m3 (0) 30.0
 
Jan. 17, 2019, 7 p.m. 0.0 ppb (0) 1.0 ppb (1) N/A N/A N/A N/A 39.0 ppb (30) N/A 1.0 μg/m3 (1) 0.4 μg/m3 (2) 30.0
 
Jan. 17, 2019, 6 p.m. -1.0 ppb (0) 1.0 ppb (1) N/A N/A N/A N/A 41.0 ppb (32) N/A 1.0 μg/m3 (1) 0.5 μg/m3 (2) 32.0
 
Jan. 17, 2019, 5 p.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 42.0 ppb (32) N/A 1.0 μg/m3 (1) 0.4 μg/m3 (2) 32.0
 
Jan. 17, 2019, 4 p.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 42.0 ppb (32) N/A 1.0 μg/m3 (1) 0.4 μg/m3 (2) 32.0
 
Jan. 17, 2019, 3 p.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 44.0 ppb (34) N/A 1.0 μg/m3 (1) 0.4 μg/m3 (2) 34.0
 
Jan. 17, 2019, 2 p.m. 0.0 ppb (0) 1.0 ppb (1) N/A N/A N/A N/A 41.0 ppb (32) N/A 1.0 μg/m3 (1) 0.6 μg/m3 (2) 32.0
 
Jan. 17, 2019, 1 p.m. -1.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 40.0 ppb (31) N/A 2.0 μg/m3 (2) 0.6 μg/m3 (2) 31.0
 
Jan. 17, 2019, noon -1.0 ppb (0) 1.0 ppb (1) N/A N/A N/A N/A 41.0 ppb (32) N/A 2.0 μg/m3 (2) 0.6 μg/m3 (2) 32.0
 
Jan. 17, 2019, 11 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 43.0 ppb (33) N/A 2.0 μg/m3 (2) 0.6 μg/m3 (2) 33.0
 
Jan. 17, 2019, 10 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 43.0 ppb (33) N/A 1.0 μg/m3 (1) 0.4 μg/m3 (2) 33.0
 
Jan. 17, 2019, 9 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 41.0 ppb (32) N/A 1.0 μg/m3 (1) 0.3 μg/m3 (1) 32.0
 
Jan. 17, 2019, 8 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 41.0 ppb (32) N/A 1.0 μg/m3 (1) 0.3 μg/m3 (1) 32.0
 
Jan. 17, 2019, 7 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 43.0 ppb (33) N/A 1.0 μg/m3 (1) 0.2 μg/m3 (1) 33.0
 
Jan. 17, 2019, 6 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 42.0 ppb (32) N/A 1.0 μg/m3 (1) -0.3 μg/m3 (0) 32.0
 
Jan. 17, 2019, 5 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 43.0 ppb (33) N/A 1.0 μg/m3 (1) -0.3 μg/m3 (0) 33.0
 
Jan. 17, 2019, 4 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 44.0 ppb (34) N/A 1.0 μg/m3 (1) -0.4 μg/m3 (0) 34.0
 
Jan. 17, 2019, 3 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 43.0 ppb (33) N/A 1.0 μg/m3 (1) -0.5 μg/m3 (0) 33.0
 
Jan. 17, 2019, 2 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 42.0 ppb (32) N/A 1.0 μg/m3 (1) -0.5 μg/m3 (0) 32.0
 
Jan. 17, 2019, 1 a.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 43.0 ppb (33) N/A 1.0 μg/m3 (1) -0.6 μg/m3 (0) 33.0
 
Jan. 17, 2019, midnight -1.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 43.0 ppb (33) N/A 0.0 μg/m3 (0) -0.7 μg/m3 (0) 33.0
 
Jan. 16, 2019, 11 p.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 42.0 ppb (32) N/A 1.0 μg/m3 (1) -0.7 μg/m3 (0) 32.0
 
Jan. 16, 2019, 10 p.m. -2.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 41.0 ppb (32) N/A 0.0 μg/m3 (0) -0.6 μg/m3 (0) 32.0
 
Jan. 16, 2019, 9 p.m. -1.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 41.0 ppb (32) N/A 1.0 μg/m3 (1) -0.5 μg/m3 (0) 32.0
 
Jan. 16, 2019, 8 p.m. -1.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 40.0 ppb (31) N/A 1.0 μg/m3 (1) -0.3 μg/m3 (0) 31.0
 
Jan. 16, 2019, 7 p.m. -1.0 ppb (0) 1.0 ppb (1) N/A N/A N/A N/A 39.0 ppb (30) N/A 1.0 μg/m3 (1) -0.1 μg/m3 (0) 30.0
 
Jan. 16, 2019, 6 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A 34.0 ppb (26) N/A 2.0 μg/m3 (2) 0.7 μg/m3 (3) 26.0
 
Jan. 16, 2019, 5 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A 33.0 ppb (25) N/A 1.0 μg/m3 (1) 0.3 μg/m3 (1) 25.0
 
Jan. 16, 2019, 4 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A 33.0 ppb (25) N/A 1.0 μg/m3 (1) 0.1 μg/m3 (0) 25.0
 
Jan. 16, 2019, 3 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 33.0 ppb (25) N/A 1.0 μg/m3 (1) -0.1 μg/m3 (0) 25.0
 
Jan. 16, 2019, 2 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) N/A 2.0 μg/m3 (2) 0.8 μg/m3 (3) 25.0
 
Jan. 16, 2019, 1 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (23) N/A 2.0 μg/m3 (2) 1.2 μg/m3 (5) 23.0
 
Jan. 16, 2019, noon 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (24) N/A 3.0 μg/m3 (3) 1.5 μg/m3 (6) 24.0
 
Jan. 16, 2019, 11 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) N/A 2.0 μg/m3 (2) 0.9 μg/m3 (4) 25.0
 
Jan. 16, 2019, 10 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (22) N/A 3.0 μg/m3 (3) 1.6 μg/m3 (7) 22.0
 
Jan. 16, 2019, 9 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 30.0 ppb (23) N/A 2.0 μg/m3 (2) 0.2 μg/m3 (1) 23.0
 
Jan. 16, 2019, 8 a.m. 26.0 ppb (24) 1.0 ppb (1) N/A 25.0 ppb (23) N/A N/A 16.0 ppb (12) N/A 24.0 μg/m3 (22) 7.8 μg/m3 (32) 32.0
 
Jan. 16, 2019, 7 a.m. 44.0 ppb (41) 7.0 ppb (6) N/A 37.0 ppb (34) N/A N/A 4.0 ppb (3) N/A 38.0 μg/m3 (35) 22.8 μg/m3 (73) 73.0
 
Jan. 16, 2019, 6 a.m. 44.0 ppb (41) 6.0 ppb (6) N/A 38.0 ppb (35) N/A N/A 4.0 ppb (3) N/A 40.0 μg/m3 (36) 28.6 μg/m3 (85) 85.0
 
Jan. 16, 2019, 5 a.m. 40.0 ppb (37) 3.0 ppb (3) N/A 37.0 ppb (34) N/A N/A 4.0 ppb (3) N/A 41.0 μg/m3 (37) 30.0 μg/m3 (88) 88.0
 
Jan. 16, 2019, 4 a.m. 38.0 ppb (35) 2.0 ppb (2) N/A 36.0 ppb (33) N/A N/A 5.0 ppb (4) N/A 43.0 μg/m3 (39) 29.5 μg/m3 (87) 87.0
 
Jan. 16, 2019, 3 a.m. 42.0 ppb (39) 4.0 ppb (4) N/A 38.0 ppb (35) N/A N/A 4.0 ppb (3) N/A 45.0 μg/m3 (41) 29.7 μg/m3 (88) 88.0
 
Jan. 16, 2019, 2 a.m. 48.0 ppb (44) 6.0 ppb (6) N/A 41.0 ppb (38) N/A N/A 4.0 ppb (3) N/A 46.0 μg/m3 (42) 29.0 μg/m3 (86) 86.0
 
Jan. 16, 2019, 1 a.m. 38.0 ppb (35) 2.0 ppb (2) N/A 36.0 ppb (33) N/A N/A 7.0 ppb (5) N/A 46.0 μg/m3 (42) 29.2 μg/m3 (87) 87.0
 
Jan. 16, 2019, midnight 33.0 ppb (31) 3.0 ppb (3) N/A 30.0 ppb (28) N/A N/A 14.0 ppb (11) N/A 42.0 μg/m3 (38) 28.7 μg/m3 (86) 86.0
 
Jan. 15, 2019, 11 p.m. 31.0 ppb (29) 6.0 ppb (6) N/A 25.0 ppb (23) N/A N/A 20.0 ppb (15) N/A 39.0 μg/m3 (35) 28.6 μg/m3 (85) 85.0
 
Jan. 15, 2019, 10 p.m. 51.0 ppb (47) 22.0 ppb (20) N/A 29.0 ppb (27) N/A N/A 16.0 ppb (12) N/A 41.0 μg/m3 (37) 32.4 μg/m3 (93) 93.0
 
Jan. 15, 2019, 9 p.m. 63.0 ppb (60) 33.0 ppb (31) N/A 30.0 ppb (28) N/A N/A 16.0 ppb (12) N/A 37.0 μg/m3 (34) 32.9 μg/m3 (94) 94.0
 
Jan. 15, 2019, 8 p.m. 49.0 ppb (45) 23.0 ppb (21) N/A 26.0 ppb (24) N/A N/A 16.0 ppb (12) N/A 31.0 μg/m3 (28) 27.8 μg/m3 (84) 84.0
 
Jan. 15, 2019, 7 p.m. 24.0 ppb (22) 9.0 ppb (8) N/A 15.0 ppb (14) N/A N/A 26.0 ppb (20) N/A 21.0 μg/m3 (19) 17.6 μg/m3 (62) 62.0
 
Jan. 15, 2019, 6 p.m. 19.0 ppb (18) 6.0 ppb (6) N/A 13.0 ppb (12) N/A N/A 31.0 ppb (24) N/A 17.0 μg/m3 (15) 4.1 μg/m3 (17) 24.0
 
Jan. 15, 2019, 5 p.m. 33.0 ppb (31) 12.0 ppb (11) N/A 22.0 ppb (20) N/A N/A 21.0 ppb (16) N/A 25.0 μg/m3 (23) 6.3 μg/m3 (26) 31.0
 
Jan. 15, 2019, 4 p.m. 49.0 ppb (45) 21.0 ppb (19) N/A 28.0 ppb (26) N/A N/A 12.0 ppb (9) N/A 35.0 μg/m3 (32) 21.1 μg/m3 (69) 69.0
 
Jan. 15, 2019, 3 p.m. 44.0 ppb (41) 12.0 ppb (11) N/A 32.0 ppb (30) N/A N/A 7.0 ppb (5) N/A 36.0 μg/m3 (33) 19.2 μg/m3 (65) 65.0
 
Jan. 15, 2019, 2 p.m. 48.0 ppb (44) 14.0 ppb (13) N/A 35.0 ppb (32) N/A N/A 4.0 ppb (3) N/A 38.0 μg/m3 (35) 21.1 μg/m3 (69) 69.0
 
Jan. 15, 2019, 1 p.m. 50.0 ppb (46) 17.0 ppb (16) N/A 33.0 ppb (31) N/A N/A 5.0 ppb (4) N/A 43.0 μg/m3 (39) 27.3 μg/m3 (83) 83.0
 
Jan. 15, 2019, noon 45.0 ppb (42) 12.0 ppb (11) N/A 32.0 ppb (30) N/A N/A 6.0 ppb (5) N/A 41.0 μg/m3 (37) 25.4 μg/m3 (79) 79.0
 
Jan. 15, 2019, 11 a.m. 32.0 ppb (30) 3.0 ppb (3) N/A 29.0 ppb (27) N/A N/A 9.0 ppb (7) N/A 41.0 μg/m3 (37) 23.6 μg/m3 (75) 75.0
 
Jan. 15, 2019, 10 a.m. 36.0 ppb (33) 3.0 ppb (3) N/A 33.0 ppb (31) N/A N/A 6.0 ppb (5) N/A 49.0 μg/m3 (45) 30.3 μg/m3 (89) 89.0
 
Jan. 15, 2019, 9 a.m. 35.0 ppb (32) 4.0 ppb (4) N/A 32.0 ppb (30) N/A N/A 6.0 ppb (5) N/A 48.0 μg/m3 (44) 29.3 μg/m3 (87) 87.0
 
Jan. 15, 2019, 8 a.m. 34.0 ppb (31) 3.0 ppb (3) N/A 31.0 ppb (29) N/A N/A 7.0 ppb (5) N/A 47.0 μg/m3 (43) 26.4 μg/m3 (81) 81.0