AQSQID: 490353013

Site Name: Herriman #3

Location: Herriman, UT

Reporting: True, Located: True

Current AQI: 40.0

Herriman UT, US: 40.496408, -112.036305

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 21, 2019, 6 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (40) N/A N/A 5.3 μg/m3 (22) 40.0
 
July 21, 2019, 5 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) N/A N/A 4.4 μg/m3 (18) 39.0
 
July 21, 2019, 4 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (40) N/A N/A 3.9 μg/m3 (16) 40.0
 
July 21, 2019, 3 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 53.0 ppb (41) N/A N/A 4.9 μg/m3 (20) 41.0
 
July 21, 2019, 2 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (35) N/A N/A 8.8 μg/m3 (37) 37.0
 
July 21, 2019, 1 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (30) N/A N/A 9.5 μg/m3 (40) 40.0
 
July 21, 2019, noon 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) N/A N/A 9.3 μg/m3 (39) 39.0
 
July 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 9.1 μg/m3 (38) 38.0
 
July 21, 2019, 10 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (30) N/A N/A 7.6 μg/m3 (32) 32.0
 
July 21, 2019, 9 a.m. 10.0 ppb (9) 1.0 ppb (1) N/A 10.0 ppb (9) N/A N/A 33.0 ppb (25) N/A N/A 9.4 μg/m3 (39) 39.0
 
July 21, 2019, 8 a.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 N/A 8.3 μg/m3 (35) 35.0
 
July 21, 2019, 7 a.m. 9.0 ppb (8) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A 37.0 ppb (28) N/A N/A 9.4 μg/m3 (39) 39.0
 
July 21, 2019, 6 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A 40.0 ppb (31) N/A N/A 9.9 μg/m3 (41) 41.0
 
July 21, 2019, 5 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) N/A N/A 8.5 μg/m3 (35) 36.0
 
July 21, 2019, 4 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (36) N/A N/A 9.2 μg/m3 (38) 38.0
 
July 21, 2019, 3 a.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (35) N/A N/A 13.8 μg/m3 (54) 54.0
 
July 21, 2019, 2 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 60.0 ppb (46) N/A N/A 8.3 μg/m3 (35) 46.0
 
July 21, 2019, 1 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 66.0 ppb (51) N/A N/A 8.0 μg/m3 (33) 51.0
 
July 21, 2019, midnight 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 71.0 ppb (55) N/A N/A 7.2 μg/m3 (30) 55.0
 
July 20, 2019, 11 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 70.0 ppb (54) N/A N/A 7.3 μg/m3 (30) 54.0
 
July 20, 2019, 10 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 68.0 ppb (52) N/A N/A 7.0 μg/m3 (29) 52.0
 
July 20, 2019, 9 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 62.0 ppb (48) N/A N/A 5.8 μg/m3 (24) 48.0
 
July 20, 2019, 8 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 61.0 ppb (47) N/A N/A 6.0 μg/m3 (25) 47.0
 
July 20, 2019, 7 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 60.0 ppb (46) N/A N/A 6.5 μg/m3 (27) 46.0
 
July 20, 2019, 6 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 60.0 ppb (46) N/A N/A 6.4 μg/m3 (27) 46.0
 
July 20, 2019, 5 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 57.0 ppb (44) N/A N/A 9.0 μg/m3 (38) 44.0
 
July 20, 2019, 4 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A 46.0 ppb (35) N/A N/A 12.0 μg/m3 (50) 50.0
 
July 20, 2019, 3 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (30) N/A N/A 9.9 μg/m3 (41) 41.0
 
July 20, 2019, 2 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (24) N/A N/A 10.0 μg/m3 (42) 42.0
 
July 20, 2019, 1 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) N/A N/A 10.5 μg/m3 (44) 44.0
 
July 20, 2019, noon 4.0 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) N/A N/A 10.0 μg/m3 (42) 42.0
 
July 20, 2019, 11 a.m. 2.0 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 6.2 μg/m3 (26) 26.0
 
July 20, 2019, 10 a.m. 2.0 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) N/A N/A 6.9 μg/m3 (29) 29.0
 
July 20, 2019, 9 a.m. 2.0 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) N/A N/A 5.8 μg/m3 (24) 28.0
 
July 20, 2019, 8 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) N/A N/A 7.0 μg/m3 (29) 29.0
 
July 20, 2019, 7 a.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) N/A N/A 6.9 μg/m3 (29) 29.0
 
July 20, 2019, 6 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (28) N/A N/A 8.5 μg/m3 (35) 35.0
 
July 20, 2019, 5 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 37.0 ppb (28) N/A N/A 7.0 μg/m3 (29) 29.0
 
July 20, 2019, 4 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) N/A N/A 8.5 μg/m3 (35) 35.0
 
July 20, 2019, 3 a.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) N/A N/A 9.1 μg/m3 (38) 38.0
 
July 20, 2019, 2 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 48.0 ppb (37) N/A N/A 6.2 μg/m3 (26) 37.0
 
July 20, 2019, 1 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 55.0 ppb (42) N/A N/A 4.7 μg/m3 (20) 42.0
 
July 20, 2019, midnight 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 58.0 ppb (45) N/A N/A 4.9 μg/m3 (20) 45.0
 
July 19, 2019, 11 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 62.0 ppb (48) N/A N/A 5.6 μg/m3 (23) 48.0
 
July 19, 2019, 10 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 58.0 ppb (45) N/A N/A 4.7 μg/m3 (20) 45.0
 
July 19, 2019, 9 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 56.0 ppb (43) N/A N/A 4.6 μg/m3 (19) 43.0
 
July 19, 2019, 8 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 55.0 ppb (42) N/A N/A 4.2 μg/m3 (18) 42.0
 
July 19, 2019, 7 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 55.0 ppb (42) N/A N/A 4.6 μg/m3 (19) 42.0
 
July 19, 2019, 6 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 4.6 μg/m3 (19) 19.0
 
July 19, 2019, 5 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 4.7 μg/m3 (20) 20.0
 
July 19, 2019, 4 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 55.0 ppb (42) N/A N/A 4.8 μg/m3 (20) 42.0
 
July 19, 2019, 3 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 54.0 ppb (42) N/A N/A 4.6 μg/m3 (19) 42.0
 
July 19, 2019, 2 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 53.0 ppb (41) N/A N/A 4.2 μg/m3 (18) 41.0
 
July 19, 2019, 1 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 55.0 ppb (42) N/A N/A 4.3 μg/m3 (18) 42.0
 
July 19, 2019, noon 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 58.0 ppb (45) N/A N/A 4.4 μg/m3 (18) 45.0
 
July 19, 2019, 11 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 60.0 ppb (46) N/A N/A 4.5 μg/m3 (19) 46.0
 
July 19, 2019, 10 a.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 62.0 ppb (48) N/A N/A 5.2 μg/m3 (22) 48.0
 
July 19, 2019, 9 a.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 61.0 ppb (47) N/A N/A 6.1 μg/m3 (25) 47.0
 
July 19, 2019, 8 a.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 59.0 ppb (45) N/A N/A 6.7 μg/m3 (28) 45.0
 
July 19, 2019, 7 a.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 59.0 ppb (45) N/A N/A 7.0 μg/m3 (29) 45.0
 
July 19, 2019, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 59.0 ppb (45) N/A N/A 7.5 μg/m3 (31) 45.0
 
July 19, 2019, 5 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 59.0 ppb (45) N/A N/A 7.3 μg/m3 (30) 45.0
 
July 19, 2019, 4 a.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 61.0 ppb (47) N/A N/A 7.8 μg/m3 (32) 47.0
 
July 19, 2019, 3 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 65.0 ppb (50) N/A N/A 4.1 μg/m3 (17) 50.0
 
July 19, 2019, 2 a.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 62.0 ppb (48) N/A N/A 4.1 μg/m3 (17) 48.0
 
July 19, 2019, 1 a.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 61.0 ppb (47) N/A N/A 5.0 μg/m3 (21) 47.0
 
July 19, 2019, midnight 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 62.0 ppb (48) N/A N/A 6.3 μg/m3 (26) 48.0
 
July 18, 2019, 11 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 62.0 ppb (48) N/A N/A 6.4 μg/m3 (27) 48.0
 
July 18, 2019, 10 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 62.0 ppb (48) N/A N/A 5.3 μg/m3 (22) 48.0
 
July 18, 2019, 9 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 59.0 ppb (45) N/A N/A 5.3 μg/m3 (22) 45.0
 
July 18, 2019, 8 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 59.0 ppb (45) N/A N/A 5.0 μg/m3 (21) 45.0
 
July 18, 2019, 7 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 58.0 ppb (45) N/A N/A 6.1 μg/m3 (25) 45.0
 
July 18, 2019, 6 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 60.0 ppb (46) N/A N/A 8.5 μg/m3 (35) 46.0
 
July 18, 2019, 5 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 60.0 ppb (46) N/A N/A 7.0 μg/m3 (29) 46.0
 
July 18, 2019, 4 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 57.0 ppb (44) N/A N/A 6.2 μg/m3 (26) 44.0
 
July 18, 2019, 3 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 55.0 ppb (42) N/A N/A 5.8 μg/m3 (24) 42.0
 
July 18, 2019, 2 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 54.0 ppb (42) N/A N/A 4.6 μg/m3 (19) 42.0
 
July 18, 2019, 1 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 56.0 ppb (43) N/A N/A 3.6 μg/m3 (15) 43.0
 
July 18, 2019, noon 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 56.0 ppb (43) N/A N/A 4.0 μg/m3 (17) 43.0
 
July 18, 2019, 11 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 59.0 ppb (45) N/A N/A 3.8 μg/m3 (16) 45.0
 
July 18, 2019, 10 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 59.0 ppb (45) N/A N/A 5.1 μg/m3 (21) 45.0
 
July 18, 2019, 9 a.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 59.0 ppb (45) N/A N/A 5.2 μg/m3 (22) 45.0
 
July 18, 2019, 8 a.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 57.0 ppb (44) N/A N/A 6.1 μg/m3 (25) 44.0
 
July 18, 2019, 7 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 59.0 ppb (45) N/A N/A 5.8 μg/m3 (24) 45.0
 
July 18, 2019, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 60.0 ppb (46) N/A N/A 6.0 μg/m3 (25) 46.0
 
July 18, 2019, 5 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 64.0 ppb (49) N/A N/A 7.3 μg/m3 (30) 49.0
 
July 18, 2019, 4 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 58.0 ppb (45) N/A N/A 7.4 μg/m3 (31) 45.0
 
July 18, 2019, 3 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 52.0 ppb (40) N/A N/A 11.9 μg/m3 (50) 50.0
 
July 18, 2019, 2 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 57.0 ppb (44) N/A N/A 11.8 μg/m3 (49) 49.0
 
July 18, 2019, 1 a.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 67.0 ppb (52) N/A N/A 7.6 μg/m3 (32) 52.0
 
July 18, 2019, midnight 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 71.0 ppb (55) N/A N/A 8.2 μg/m3 (34) 55.0
 
July 17, 2019, 11 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 71.0 ppb (55) N/A N/A 8.9 μg/m3 (37) 55.0
 
July 17, 2019, 10 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 60.0 ppb (46) N/A N/A 7.2 μg/m3 (30) 46.0
 
July 17, 2019, 9 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 64.0 ppb (49) N/A N/A 7.9 μg/m3 (33) 49.0
 
July 17, 2019, 8 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 61.0 ppb (47) N/A N/A 8.0 μg/m3 (33) 47.0
 
July 17, 2019, 7 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 60.0 ppb (46) N/A N/A 8.6 μg/m3 (36) 46.0
 
July 17, 2019, 6 p.m. 6.0 ppb (6) 4.0 ppb (4) N/A 3.0 ppb (3) N/A N/A 62.0 ppb (48) N/A N/A 11.1 μg/m3 (46) 48.0
 
July 17, 2019, 5 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 59.0 ppb (45) N/A N/A 10.4 μg/m3 (43) 45.0
 
July 17, 2019, 4 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A 52.0 ppb (40) N/A N/A 10.3 μg/m3 (43) 43.0
 
July 17, 2019, 3 p.m. 7.0 ppb (6) 3.0 ppb (3) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (35) N/A N/A 12.5 μg/m3 (51) 51.0
 
July 17, 2019, 2 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A N/A 8.0 μg/m3 (33) 34.0
 
July 17, 2019, 1 p.m. 8.0 ppb (7) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (25) N/A N/A 10.7 μg/m3 (45) 45.0
 
July 17, 2019, noon 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) N/A N/A 10.5 μg/m3 (44) 44.0
 
July 17, 2019, 11 a.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) N/A N/A 8.7 μg/m3 (36) 36.0
 
July 17, 2019, 10 a.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) N/A N/A 8.1 μg/m3 (34) 34.0
 
July 17, 2019, 9 a.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 N/A 8.2 μg/m3 (34) 34.0
 
July 17, 2019, 8 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (28) N/A N/A 9.5 μg/m3 (40) 40.0
 
July 17, 2019, 7 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 34.0 ppb (26) N/A N/A 6.9 μg/m3 (29) 29.0
 
July 17, 2019, 6 a.m. 10.0 ppb (9) 1.0 ppb (1) N/A 10.0 ppb (9) N/A N/A 31.0 ppb (24) N/A N/A 7.9 μg/m3 (33) 33.0
 
July 17, 2019, 5 a.m. 9.0 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A 38.0 ppb (29) N/A N/A 6.2 μg/m3 (26) 29.0
 
July 17, 2019, 4 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) N/A N/A 6.0 μg/m3 (25) 36.0
 
July 17, 2019, 3 a.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A N/A 10.0 μg/m3 (42) 42.0
 
July 17, 2019, 2 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (40) N/A N/A 5.8 μg/m3 (24) 40.0
 
July 17, 2019, 1 a.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 58.0 ppb (45) N/A N/A 3.3 μg/m3 (14) 45.0
 
July 17, 2019, midnight 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 60.0 ppb (46) N/A N/A 2.8 μg/m3 (12) 46.0
 
July 16, 2019, 11 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 61.0 ppb (47) N/A N/A 2.9 μg/m3 (12) 47.0
 
July 16, 2019, 10 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 60.0 ppb (46) N/A N/A 2.8 μg/m3 (12) 46.0
 
July 16, 2019, 9 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 58.0 ppb (45) N/A N/A 3.5 μg/m3 (15) 45.0
 
July 16, 2019, 8 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 62.0 ppb (48) N/A N/A 5.3 μg/m3 (22) 48.0
 
July 16, 2019, 7 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 61.0 ppb (47) N/A N/A 6.4 μg/m3 (27) 47.0
 
July 16, 2019, 6 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 57.0 ppb (44) N/A N/A 7.7 μg/m3 (32) 44.0
 
July 16, 2019, 5 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 55.0 ppb (42) N/A N/A 7.3 μg/m3 (30) 42.0
 
July 16, 2019, 4 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 55.0 ppb (42) N/A N/A 8.6 μg/m3 (36) 42.0
 
July 16, 2019, 3 p.m. 9.0 ppb (8) 3.0 ppb (3) N/A 7.0 ppb (6) N/A N/A 48.0 ppb (37) N/A N/A 12.5 μg/m3 (51) 51.0
 
July 16, 2019, 2 p.m. 8.0 ppb (7) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A 44.0 ppb (34) N/A N/A 12.2 μg/m3 (50) 50.0
 
July 16, 2019, 1 p.m. 8.0 ppb (7) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (25) N/A N/A 14.1 μg/m3 (54) 54.0
 
July 16, 2019, noon 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 32.0 ppb (25) N/A N/A 12.9 μg/m3 (52) 52.0
 
July 16, 2019, 11 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) N/A N/A 8.5 μg/m3 (35) 35.0
 
July 16, 2019, 10 a.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A N/A 7.1 μg/m3 (30) 30.0
 
July 16, 2019, 9 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (28) N/A N/A 6.8 μg/m3 (28) 28.0
 
July 16, 2019, 8 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (26) N/A N/A 7.9 μg/m3 (33) 33.0
 
July 16, 2019, 7 a.m. 13.0 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (11) N/A N/A 29.0 ppb (22) N/A N/A 8.0 μg/m3 (33) 33.0
 
July 16, 2019, 6 a.m. 13.0 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (11) N/A N/A 30.0 ppb (23) N/A N/A 7.3 μg/m3 (30) 30.0
 
July 16, 2019, 5 a.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 N/A 5.9 μg/m3 (25) 27.0
 
July 16, 2019, 4 a.m. 4.0 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) N/A N/A 4.5 μg/m3 (19) 32.0
 
July 16, 2019, 3 a.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) N/A N/A 7.0 μg/m3 (29) 32.0
 
July 16, 2019, 2 a.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (38) N/A N/A 4.9 μg/m3 (20) 38.0
 
July 16, 2019, 1 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 56.0 ppb (43) N/A N/A 4.1 μg/m3 (17) 43.0
 
July 16, 2019, midnight 2.0 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 59.0 ppb (45) N/A N/A 3.8 μg/m3 (16) 45.0
 
July 15, 2019, 11 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 59.0 ppb (45) N/A N/A 3.7 μg/m3 (15) 45.0
 
July 15, 2019, 10 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 57.0 ppb (44) N/A N/A 3.7 μg/m3 (15) 44.0
 
July 15, 2019, 9 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 56.0 ppb (43) N/A N/A 4.0 μg/m3 (17) 43.0
 
July 15, 2019, 8 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 55.0 ppb (42) N/A N/A 4.4 μg/m3 (18) 42.0
 
July 15, 2019, 7 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 54.0 ppb (42) N/A N/A 5.6 μg/m3 (23) 42.0
 
July 15, 2019, 6 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 54.0 ppb (42) N/A N/A 6.7 μg/m3 (28) 42.0
 
July 15, 2019, 5 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) N/A N/A 5.9 μg/m3 (25) 38.0
 
July 15, 2019, 4 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 51.0 ppb (39) N/A N/A 7.3 μg/m3 (30) 39.0
 
July 15, 2019, 3 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) N/A N/A 6.9 μg/m3 (29) 38.0
 
July 15, 2019, 2 p.m. 5.0 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A N/A 6.8 μg/m3 (28) 34.0
 
July 15, 2019, 1 p.m. 13.0 ppb (12) 3.0 ppb (3) N/A 10.0 ppb (9) N/A N/A 29.0 ppb (22) N/A N/A 13.0 μg/m3 (52) 52.0
 
July 15, 2019, noon 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) N/A N/A 7.9 μg/m3 (33) 33.0
 
July 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 5.0 μg/m3 (21) 33.0
 
July 15, 2019, 10 a.m. 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A 48.0 ppb (37) N/A N/A 4.2 μg/m3 (18) 37.0
 
July 15, 2019, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 50.0 ppb (38) N/A N/A 3.6 μg/m3 (15) 38.0
 
July 15, 2019, 8 a.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) N/A N/A 6.0 μg/m3 (25) 38.0
 
July 15, 2019, 7 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) N/A N/A 5.7 μg/m3 (24) 39.0
 
July 15, 2019, 6 a.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (40) N/A N/A 5.0 μg/m3 (21) 40.0
 
July 15, 2019, 5 a.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) N/A N/A 6.0 μg/m3 (25) 39.0
 
July 15, 2019, 4 a.m. 2.0 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) N/A N/A 5.8 μg/m3 (24) 38.0
 
July 15, 2019, 3 a.m. 2.0 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) N/A N/A 6.0 μg/m3 (25) 36.0
 
July 15, 2019, 2 a.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) N/A N/A 5.0 μg/m3 (21) 38.0
 
July 15, 2019, 1 a.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (40) N/A N/A 4.8 μg/m3 (20) 40.0
 
July 15, 2019, midnight 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 55.0 ppb (42) N/A N/A 4.8 μg/m3 (20) 42.0
 
July 14, 2019, 11 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 58.0 ppb (45) N/A N/A 5.4 μg/m3 (23) 45.0
 
July 14, 2019, 10 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 59.0 ppb (45) N/A N/A 5.0 μg/m3 (21) 45.0
 
July 14, 2019, 9 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 57.0 ppb (44) N/A N/A 5.4 μg/m3 (23) 44.0
 
July 14, 2019, 8 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 56.0 ppb (43) N/A N/A 5.7 μg/m3 (24) 43.0
 
July 14, 2019, 7 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 56.0 ppb (43) N/A N/A 5.5 μg/m3 (23) 43.0