AQSQID: 270370480

Site Name: Lakeville - Near Road

Location: Lakeville, MN

Reporting: True, Located: True

Current AQI: 29.0

Lakeville MN, US: 44.706123, -93.285803

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 23, 2019, 9 a.m. 1.2 ppb (1) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.02 ppb (0) N/A 7.0 μg/m3 (29) 29.0
 
July 23, 2019, 8 a.m. 1.8 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.04 ppb (0) N/A 7.0 μg/m3 (29) 29.0
 
July 23, 2019, 7 a.m. 3.1 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.03 ppb (0) N/A 6.0 μg/m3 (25) 25.0
 
July 23, 2019, 6 a.m. 7.8 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.11 ppb (1) N/A 7.0 μg/m3 (29) 29.0
 
July 23, 2019, 5 a.m. 3.8 ppb (4) -0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.07 ppb (1) N/A 4.0 μg/m3 (17) 17.0
 
July 23, 2019, 4 a.m. 3.5 ppb (3) -0.6 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.09 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
July 23, 2019, 3 a.m. 3.7 ppb (3) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.05 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
July 23, 2019, 2 a.m. 2.5 ppb (2) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.06 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
July 23, 2019, 1 a.m. 1.4 ppb (1) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.03 ppb (0) N/A 6.0 μg/m3 (25) 25.0
 
July 23, 2019, midnight 2.9 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.03 ppb (0) N/A 6.0 μg/m3 (25) 25.0
 
July 22, 2019, 11 p.m. 1.6 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.02 ppb (0) N/A 6.0 μg/m3 (25) 25.0
 
July 22, 2019, 10 p.m. 0.9 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.0 ppb (0) N/A 5.0 μg/m3 (21) 21.0
 
July 22, 2019, 9 p.m. 1.2 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.0 ppb (0) N/A 2.0 μg/m3 (8) 8.0
 
July 22, 2019, 8 p.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
July 22, 2019, 7 p.m. 6.3 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 22, 2019, 6 p.m. 10.1 ppb (9) 4.0 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.04 ppb (0) N/A 6.0 μg/m3 (25) 25.0
 
July 22, 2019, 5 p.m. 3.1 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 22, 2019, 4 p.m. 11.3 ppb (10) 5.0 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.04 ppb (0) N/A 4.0 μg/m3 (17) 17.0
 
July 22, 2019, 3 p.m. 17.5 ppb (16) 8.3 ppb (8) N/A 9.0 ppb (8) N/A N/A N/A 0.02 ppb (0) N/A 5.0 μg/m3 (21) 21.0
 
July 22, 2019, 2 p.m. 22.8 ppb (21) 11.0 ppb (10) N/A 12.0 ppb (11) N/A N/A N/A 0.1 ppb (1) N/A 7.0 μg/m3 (29) 29.0
 
July 22, 2019, 1 p.m. 15.0 ppb (14) 5.9 ppb (5) N/A 9.0 ppb (8) N/A N/A N/A 0.04 ppb (0) N/A 6.0 μg/m3 (25) 25.0
 
July 22, 2019, noon 10.9 ppb (10) 3.0 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A 0.06 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
July 22, 2019, 11 a.m. 7.1 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.01 ppb (0) N/A 5.0 μg/m3 (21) 21.0
 
July 22, 2019, 10 a.m. 3.5 ppb (3) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.01 ppb (0) N/A 6.0 μg/m3 (25) 25.0
 
July 22, 2019, 9 a.m. 1.4 ppb (1) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.01 ppb (0) N/A 6.0 μg/m3 (25) 25.0
 
July 22, 2019, 8 a.m. 1.2 ppb (1) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.01 ppb (0) N/A 5.0 μg/m3 (21) 21.0
 
July 22, 2019, 7 a.m. 2.4 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.02 ppb (0) N/A 5.0 μg/m3 (21) 21.0
 
July 22, 2019, 6 a.m. 2.6 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.04 ppb (0) N/A 4.0 μg/m3 (17) 17.0
 
July 22, 2019, 5 a.m. 1.6 ppb (1) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.03 ppb (0) N/A 3.0 μg/m3 (12) 12.0
 
July 22, 2019, 4 a.m. 2.4 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.06 ppb (1) N/A 2.0 μg/m3 (8) 8.0
 
July 22, 2019, 3 a.m. 4.6 ppb (4) -0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.07 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
July 22, 2019, 2 a.m. 7.7 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.07 ppb (1) N/A 4.0 μg/m3 (17) 17.0
 
July 22, 2019, 1 a.m. 1.0 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.05 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
July 22, 2019, midnight 0.6 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.04 ppb (0) N/A 6.0 μg/m3 (25) 25.0
 
July 21, 2019, 11 p.m. 0.6 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.0 ppb (0) N/A 4.0 μg/m3 (17) 17.0
 
July 21, 2019, 10 p.m. 0.2 ppb (0) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.02 ppb (0) N/A 6.0 μg/m3 (25) 25.0
 
July 21, 2019, 9 p.m. 0.8 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.01 ppb (0) N/A 4.0 μg/m3 (17) 17.0
 
July 21, 2019, 8 p.m. 0.4 ppb (0) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.0 ppb (0) N/A 4.0 μg/m3 (17) 17.0
 
July 21, 2019, 7 p.m. 0.9 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.03 ppb (0) N/A 3.0 μg/m3 (12) 12.0
 
July 21, 2019, 6 p.m. 1.3 ppb (1) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.02 ppb (0) N/A 1.0 μg/m3 (4) 4.0
 
July 21, 2019, 5 p.m. 3.8 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.06 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
July 21, 2019, 4 p.m. 15.4 ppb (14) 5.0 ppb (5) N/A 10.0 ppb (9) N/A N/A N/A 0.23 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
July 21, 2019, 3 p.m. 12.7 ppb (12) 3.9 ppb (4) N/A 9.0 ppb (8) N/A N/A N/A 0.17 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
July 21, 2019, 2 p.m. 17.9 ppb (17) 6.6 ppb (6) N/A 11.0 ppb (10) N/A N/A N/A 0.26 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
July 21, 2019, 1 p.m. 17.8 ppb (16) 6.8 ppb (6) N/A 11.0 ppb (10) N/A N/A N/A 0.29 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
July 21, 2019, noon 17.1 ppb (16) 6.3 ppb (6) N/A 11.0 ppb (10) N/A N/A N/A 0.24 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
July 21, 2019, 11 a.m. 26.1 ppb (24) 12.7 ppb (12) N/A 13.0 ppb (12) N/A N/A N/A 0.4 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 21, 2019, 10 a.m. 32.7 ppb (30) 18.2 ppb (17) N/A 14.0 ppb (13) N/A N/A N/A 0.35 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
July 21, 2019, 9 a.m. 25.4 ppb (24) 12.8 ppb (12) N/A 13.0 ppb (12) N/A N/A N/A 0.26 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
July 21, 2019, 8 a.m. 20.6 ppb (19) 7.7 ppb (7) N/A 13.0 ppb (12) N/A N/A N/A 0.33 ppb (4) N/A 15.0 μg/m3 (56) 56.0
 
July 21, 2019, 7 a.m. 28.7 ppb (27) 15.6 ppb (14) N/A 13.0 ppb (12) N/A N/A N/A 0.35 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
July 21, 2019, 6 a.m. 27.5 ppb (25) 13.6 ppb (13) N/A 14.0 ppb (13) N/A N/A N/A 0.35 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
July 21, 2019, 5 a.m. 22.9 ppb (21) 8.0 ppb (7) N/A 15.0 ppb (14) N/A N/A N/A 0.39 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
July 21, 2019, 4 a.m. 24.2 ppb (22) 7.3 ppb (7) N/A 17.0 ppb (16) N/A N/A N/A 0.43 ppb (5) N/A 15.0 μg/m3 (56) 56.0
 
July 21, 2019, 3 a.m. 31.8 ppb (29) 12.4 ppb (11) N/A 19.0 ppb (18) N/A N/A N/A 0.47 ppb (5) N/A 13.0 μg/m3 (52) 52.0
 
July 21, 2019, 2 a.m. 9.7 ppb (9) -0.1 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A 0.28 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
July 21, 2019, 1 a.m. 8.1 ppb (8) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.24 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
July 21, 2019, midnight 9.2 ppb (9) 1.4 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.23 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
July 20, 2019, 11 p.m. 5.4 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.15 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
July 20, 2019, 10 p.m. 2.8 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.09 ppb (1) N/A 7.0 μg/m3 (29) 29.0
 
July 20, 2019, 9 p.m. 3.6 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.06 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
July 20, 2019, 8 p.m. 6.4 ppb (6) 1.3 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.11 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
July 20, 2019, 7 p.m. 11.3 ppb (10) 3.9 ppb (4) N/A 7.0 ppb (6) N/A N/A N/A 0.14 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
July 20, 2019, 6 p.m. 11.0 ppb (10) 4.7 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
July 20, 2019, 5 p.m. 6.9 ppb (6) 3.2 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.08 ppb (1) N/A 2.0 μg/m3 (8) 8.0
 
July 20, 2019, 4 p.m. 4.0 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.08 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
July 20, 2019, 3 p.m. 5.8 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.07 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
July 20, 2019, 2 p.m. 7.5 ppb (7) 2.6 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.12 ppb (1) N/A 2.0 μg/m3 (8) 8.0
 
July 20, 2019, 1 p.m. 5.8 ppb (5) 1.4 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.11 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
July 20, 2019, noon 12.5 ppb (12) 2.4 ppb (2) N/A 10.0 ppb (9) N/A N/A N/A 0.13 ppb (1) N/A 4.0 μg/m3 (17) 17.0
 
July 20, 2019, 11 a.m. 8.9 ppb (8) 2.2 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A 0.13 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
July 20, 2019, 10 a.m. 7.6 ppb (7) 1.4 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.16 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
July 20, 2019, 9 a.m. 5.5 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.13 ppb (1) N/A 7.0 μg/m3 (29) 29.0
 
July 20, 2019, 8 a.m. 6.2 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.15 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
July 20, 2019, 7 a.m. 9.5 ppb (9) 2.5 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A 0.16 ppb (2) N/A 1.0 μg/m3 (4) 9.0
 
July 20, 2019, 6 a.m. 5.6 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
July 20, 2019, 5 a.m. 5.0 ppb (5) -0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.17 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
July 20, 2019, 4 a.m. 3.6 ppb (3) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.19 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
July 20, 2019, 3 a.m. 5.9 ppb (5) -0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.18 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
July 20, 2019, 2 a.m. 3.5 ppb (3) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.18 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
July 20, 2019, 1 a.m. 8.5 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.16 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
July 20, 2019, midnight 0.8 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.17 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
July 19, 2019, 11 p.m. 2.5 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.11 ppb (1) N/A 9.0 μg/m3 (38) 38.0
 
July 19, 2019, 10 p.m. 7.2 ppb (7) 1.2 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.15 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
July 19, 2019, 9 p.m. 7.7 ppb (7) 1.5 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.17 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
July 19, 2019, 8 p.m. 13.4 ppb (12) 4.2 ppb (4) N/A 9.0 ppb (8) N/A N/A N/A 0.23 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
July 19, 2019, 7 p.m. 17.3 ppb (16) 7.2 ppb (7) N/A 10.0 ppb (9) N/A N/A N/A 0.28 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
July 19, 2019, 6 p.m. 25.8 ppb (24) 11.3 ppb (10) N/A 15.0 ppb (14) N/A N/A N/A 0.38 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
July 19, 2019, 5 p.m. 23.5 ppb (22) 10.8 ppb (10) N/A 13.0 ppb (12) N/A N/A N/A 0.28 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
July 19, 2019, 4 p.m. 20.8 ppb (19) 8.4 ppb (8) N/A 12.0 ppb (11) N/A N/A N/A 0.24 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
July 19, 2019, 3 p.m. 29.9 ppb (28) 13.6 ppb (13) N/A 16.0 ppb (15) N/A N/A N/A 0.29 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
July 19, 2019, 2 p.m. 39.8 ppb (37) 20.7 ppb (19) N/A 19.0 ppb (18) N/A N/A N/A 0.31 ppb (3) N/A 8.0 μg/m3 (33) 37.0
 
July 19, 2019, 1 p.m. 43.1 ppb (40) 23.6 ppb (22) N/A 19.0 ppb (18) N/A N/A N/A 0.27 ppb (3) N/A 4.0 μg/m3 (17) 40.0
 
July 19, 2019, noon 50.8 ppb (47) 29.5 ppb (27) N/A 21.0 ppb (19) N/A N/A N/A 0.4 ppb (4) N/A 2.0 μg/m3 (8) 47.0
 
July 19, 2019, 11 a.m. 46.1 ppb (43) 25.9 ppb (24) N/A 20.0 ppb (19) N/A N/A N/A 0.31 ppb (3) N/A 3.0 μg/m3 (12) 43.0
 
July 19, 2019, 10 a.m. 24.2 ppb (22) 6.8 ppb (6) N/A 17.0 ppb (16) N/A N/A N/A 0.18 ppb (2) N/A 3.0 μg/m3 (12) 22.0
 
July 19, 2019, 9 a.m. 18.1 ppb (17) 3.0 ppb (3) N/A 15.0 ppb (14) N/A N/A N/A 0.17 ppb (2) N/A 3.0 μg/m3 (12) 17.0
 
July 19, 2019, 8 a.m. 15.0 ppb (14) 4.0 ppb (4) N/A 11.0 ppb (10) N/A N/A N/A 0.14 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
July 19, 2019, 7 a.m. 7.9 ppb (7) 1.1 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.13 ppb (1) N/A 8.0 μg/m3 (33) 33.0
 
July 19, 2019, 6 a.m. 10.6 ppb (10) 1.5 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A 0.13 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
July 19, 2019, 5 a.m. 4.9 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
July 19, 2019, 4 a.m. 13.2 ppb (12) 2.1 ppb (2) N/A 11.0 ppb (10) N/A N/A N/A 0.22 ppb (2) N/A 2.0 μg/m3 (8) 12.0
 
July 19, 2019, 3 a.m. 17.0 ppb (16) 2.0 ppb (2) N/A 15.0 ppb (14) N/A N/A N/A 0.26 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
July 19, 2019, 2 a.m. 18.8 ppb (17) 3.1 ppb (3) N/A 16.0 ppb (15) N/A N/A N/A 0.28 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
July 19, 2019, 1 a.m. 25.0 ppb (23) 6.4 ppb (6) N/A 19.0 ppb (18) N/A N/A N/A 0.37 ppb (4) N/A 3.0 μg/m3 (12) 23.0
 
July 19, 2019, midnight 5.5 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.17 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
July 18, 2019, 11 p.m. 0.9 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.16 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
July 18, 2019, 10 p.m. 3.5 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.18 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
July 18, 2019, 9 p.m. 0.8 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.13 ppb (1) N/A 4.0 μg/m3 (17) 17.0
 
July 18, 2019, 8 p.m. 7.4 ppb (7) 1.7 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.18 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
July 18, 2019, 7 p.m. 9.1 ppb (8) 3.5 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.13 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
July 18, 2019, 6 p.m. 0.9 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.1 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
July 18, 2019, 5 p.m. 2.1 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.1 ppb (1) N/A 4.0 μg/m3 (17) 17.0
 
July 18, 2019, 4 p.m. 9.7 ppb (9) 2.6 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A 0.14 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
July 18, 2019, 3 p.m. 15.6 ppb (14) 5.6 ppb (5) N/A 10.0 ppb (9) N/A N/A N/A 0.12 ppb (1) N/A 4.0 μg/m3 (17) 17.0
 
July 18, 2019, 2 p.m. 33.4 ppb (31) 13.6 ppb (13) N/A 20.0 ppb (19) N/A N/A N/A 0.23 ppb (3) N/A 5.0 μg/m3 (21) 31.0
 
July 18, 2019, 1 p.m. 38.9 ppb (36) 16.6 ppb (15) N/A 22.0 ppb (20) N/A N/A N/A 0.23 ppb (3) N/A 6.0 μg/m3 (25) 36.0
 
July 18, 2019, noon 20.5 ppb (19) 5.2 ppb (5) N/A 15.0 ppb (14) N/A N/A N/A 0.19 ppb (2) N/A 1.0 μg/m3 (4) 19.0
 
July 18, 2019, 11 a.m. 9.0 ppb (8) 2.7 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.15 ppb (2) N/A 1.0 μg/m3 (4) 8.0
 
July 18, 2019, 10 a.m. 17.2 ppb (16) 4.6 ppb (4) N/A 13.0 ppb (12) N/A N/A N/A 0.18 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
July 18, 2019, 9 a.m. 4.8 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.09 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
July 18, 2019, 8 a.m. 3.5 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.12 ppb (1) N/A 1.0 μg/m3 (4) 4.0
 
July 18, 2019, 7 a.m. 4.7 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.12 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
July 18, 2019, 6 a.m. 4.2 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.1 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
July 18, 2019, 5 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.1 ppb (1) N/A 4.0 μg/m3 (17) 17.0
 
July 18, 2019, 4 a.m. 3.5 ppb (3) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.13 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
July 18, 2019, 3 a.m. 6.0 ppb (6) -0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
July 18, 2019, 2 a.m. 6.5 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A 0.14 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
July 18, 2019, 1 a.m. 6.9 ppb (6) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
July 18, 2019, midnight 1.3 ppb (1) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.11 ppb (1) N/A 1.0 μg/m3 (4) 4.0
 
July 17, 2019, 11 p.m. 4.1 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.15 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
July 17, 2019, 10 p.m. 7.8 ppb (7) 1.6 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.16 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
July 17, 2019, 9 p.m. 7.9 ppb (7) 2.1 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.15 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
July 17, 2019, 8 p.m. 18.5 ppb (17) 9.2 ppb (9) N/A 9.0 ppb (8) N/A N/A N/A 0.26 ppb (3) N/A 3.0 μg/m3 (12) 17.0
 
July 17, 2019, 7 p.m. 20.5 ppb (19) 10.0 ppb (9) N/A 10.0 ppb (9) N/A N/A N/A 0.18 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
July 17, 2019, 6 p.m. 29.8 ppb (28) 17.3 ppb (16) N/A 12.0 ppb (11) N/A N/A N/A 0.25 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
July 17, 2019, 5 p.m. 21.4 ppb (20) 11.8 ppb (11) N/A 10.0 ppb (9) N/A N/A N/A 0.21 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
July 17, 2019, 4 p.m. 32.8 ppb (30) 18.3 ppb (17) N/A 15.0 ppb (14) N/A N/A N/A 0.23 ppb (3) N/A 4.0 μg/m3 (17) 30.0
 
July 17, 2019, 3 p.m. 16.4 ppb (15) 6.6 ppb (6) N/A 10.0 ppb (9) N/A N/A N/A 0.18 ppb (2) N/A 0.0 μg/m3 (0) 15.0
 
July 17, 2019, 2 p.m. 22.1 ppb (20) 10.7 ppb (10) N/A 11.0 ppb (10) N/A N/A N/A 0.17 ppb (2) N/A 3.0 μg/m3 (12) 20.0
 
July 17, 2019, 1 p.m. 29.4 ppb (27) 15.6 ppb (14) N/A 14.0 ppb (13) N/A N/A N/A 0.22 ppb (2) N/A 4.0 μg/m3 (17) 27.0
 
July 17, 2019, noon 24.3 ppb (23) 12.3 ppb (11) N/A 12.0 ppb (11) N/A N/A N/A 0.23 ppb (3) N/A 5.0 μg/m3 (21) 23.0
 
July 17, 2019, 11 a.m. 27.7 ppb (26) 14.6 ppb (14) N/A 13.0 ppb (12) N/A N/A N/A 0.23 ppb (3) N/A 6.0 μg/m3 (25) 26.0
 
July 17, 2019, 10 a.m. 30.5 ppb (28) 15.3 ppb (14) N/A 15.0 ppb (14) N/A N/A N/A 0.25 ppb (3) N/A 6.0 μg/m3 (25) 28.0
 
July 17, 2019, 9 a.m. 12.9 ppb (12) 4.3 ppb (4) N/A 9.0 ppb (8) N/A N/A N/A 0.13 ppb (1) N/A 4.0 μg/m3 (17) 17.0
 
July 17, 2019, 8 a.m. 12.6 ppb (12) 3.3 ppb (3) N/A 9.0 ppb (8) N/A N/A N/A 0.15 ppb (2) N/A 2.0 μg/m3 (8) 12.0
 
July 17, 2019, 7 a.m. 20.5 ppb (19) 8.0 ppb (7) N/A 12.0 ppb (11) N/A N/A N/A 0.18 ppb (2) N/A 0.0 μg/m3 (0) 19.0
 
July 17, 2019, 6 a.m. 20.4 ppb (19) 6.2 ppb (6) N/A 14.0 ppb (13) N/A N/A N/A 0.18 ppb (2) N/A 2.0 μg/m3 (8) 19.0
 
July 17, 2019, 5 a.m. 15.0 ppb (14) 2.3 ppb (2) N/A 13.0 ppb (12) N/A N/A N/A 0.17 ppb (2) N/A 2.0 μg/m3 (8) 14.0
 
July 17, 2019, 4 a.m. 7.4 ppb (7) -0.4 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.15 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
July 17, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 0.23 ppb (3) N/A 15.0 μg/m3 (56) 56.0
 
July 17, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 0.26 ppb (3) N/A 262.0 μg/m3 (312) 312.0
 
July 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
July 17, 2019, midnight 24.7 ppb (23) 9.1 ppb (8) N/A 16.0 ppb (15) N/A N/A N/A 0.31 ppb (3) N/A 4.0 μg/m3 (17) 23.0
 
July 16, 2019, 11 p.m. 17.2 ppb (16) 4.9 ppb (5) N/A 12.0 ppb (11) N/A N/A N/A 0.24 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
July 16, 2019, 10 p.m. 12.4 ppb (11) 4.2 ppb (4) N/A 8.0 ppb (7) N/A N/A N/A 0.27 ppb (3) N/A 20.0 μg/m3 (67) 67.0
 
July 16, 2019, 9 p.m. 6.5 ppb (6) 1.6 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (2) N/A 1.0 μg/m3 (4) 6.0
 
July 16, 2019, 8 p.m. 0.8 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.13 ppb (1) N/A 2.0 μg/m3 (8) 8.0
 
July 16, 2019, 7 p.m. 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
July 16, 2019, 6 p.m. 21.6 ppb (20) 7.9 ppb (7) N/A 14.0 ppb (13) N/A N/A N/A 0.19 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
July 16, 2019, 5 p.m. 9.6 ppb (9) 3.6 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.16 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
July 16, 2019, 4 p.m. 2.5 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.1 ppb (1) N/A 2.0 μg/m3 (8) 8.0
 
July 16, 2019, 3 p.m. 1.0 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.11 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
July 16, 2019, 2 p.m. 0.8 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.13 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
July 16, 2019, 1 p.m. 1.4 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.11 ppb (1) N/A 0.0 μg/m3 (0) 1.0
 
July 16, 2019, noon 1.2 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.12 ppb (1) N/A 1.0 μg/m3 (4) 4.0
 
July 16, 2019, 11 a.m. 0.5 ppb (0) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.11 ppb (1) N/A 1.0 μg/m3 (4) 4.0
 
July 16, 2019, 10 a.m. 0.1 ppb (0) -0.3 ppb (0) N/A 0.0 ppb (0) N/A N/A N/A 0.08 ppb (1) N/A 2.0 μg/m3 (8) 8.0