AQSQID: 270031002

Site Name: Blaine

Location: Blaine, MN

Reporting: True, Located: True

Current AQI: 25.0

Blaine MN, US: 45.1425, -93.2139

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 20, 2019, 2 p.m. 3.6 ppb (3) 1.1 ppb (1) 3.6 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.22 ppb (2) 5.0 μg/m3 (5) 3.0 μg/m3 (12) 25.0
 
Jan. 20, 2019, 1 p.m. 4.1 ppb (4) 0.9 ppb (1) 4.1 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (24) 0.22 ppb (2) 6.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2019, noon 3.8 ppb (4) 0.8 ppb (1) 4.0 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (24) 0.21 ppb (2) 6.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2019, 11 a.m. 4.8 ppb (4) 1.0 ppb (1) 5.0 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) 0.22 ppb (2) 4.0 μg/m3 (4) 3.0 μg/m3 (12) 24.0
 
Jan. 20, 2019, 10 a.m. 3.8 ppb (4) 0.6 ppb (1) 4.4 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.22 ppb (2) 6.0 μg/m3 (5) 3.0 μg/m3 (12) 12.0
 
Jan. 20, 2019, 9 a.m. 5.6 ppb (5) 1.2 ppb (1) 5.3 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) 0.22 ppb (2) 5.0 μg/m3 (5) 3.0 μg/m3 (12) 24.0
 
Jan. 20, 2019, 8 a.m. 3.8 ppb (4) 0.7 ppb (1) 4.5 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) N/A 6.0 μg/m3 (5) 1.0 μg/m3 (4) 25.0
 
Jan. 20, 2019, 7 a.m. 3.4 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) 0.22 ppb (2) 7.0 μg/m3 (6) 4.0 μg/m3 (17) 25.0
 
Jan. 20, 2019, 6 a.m. 2.9 ppb (3) 0.4 ppb (0) 3.6 ppb (3) 2.0 ppb (2) N/A N/A 32.0 ppb (25) 0.23 ppb (3) 7.0 μg/m3 (6) 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2019, 5 a.m. 3.2 ppb (3) 0.5 ppb (0) 3.9 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) 0.22 ppb (2) 7.0 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2019, 4 a.m. 4.8 ppb (4) 0.3 ppb (0) 5.3 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) 0.24 ppb (3) 7.0 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2019, 3 a.m. 4.3 ppb (4) 0.5 ppb (0) 4.5 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (25) 0.23 ppb (3) 5.0 μg/m3 (5) 8.0 μg/m3 (33) 33.0
 
Jan. 20, 2019, 2 a.m. 4.6 ppb (4) 0.5 ppb (0) 5.0 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (25) 0.24 ppb (3) 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2019, 1 a.m. 4.4 ppb (4) 0.4 ppb (0) 5.3 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) 0.24 ppb (3) 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2019, midnight 3.6 ppb (3) 0.2 ppb (0) 4.5 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) 0.24 ppb (3) 5.0 μg/m3 (5) 3.0 μg/m3 (12) 26.0
 
Jan. 19, 2019, 11 p.m. 4.0 ppb (4) 0.4 ppb (0) 4.6 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) 0.23 ppb (3) 6.0 μg/m3 (5) 3.0 μg/m3 (12) 26.0
 
Jan. 19, 2019, 10 p.m. 2.5 ppb (2) 0.3 ppb (0) 3.3 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.22 ppb (2) 6.0 μg/m3 (5) 4.0 μg/m3 (17) 27.0
 
Jan. 19, 2019, 9 p.m. 2.0 ppb (2) 0.5 ppb (0) 2.8 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (28) 0.22 ppb (2) 4.0 μg/m3 (4) 5.0 μg/m3 (21) 28.0
 
Jan. 19, 2019, 8 p.m. 1.4 ppb (1) 0.3 ppb (0) 2.0 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (28) 0.22 ppb (2) 6.0 μg/m3 (5) 6.0 μg/m3 (25) 28.0
 
Jan. 19, 2019, 7 p.m. 1.6 ppb (1) 0.4 ppb (0) 2.2 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (28) 0.22 ppb (2) 5.0 μg/m3 (5) 5.0 μg/m3 (21) 28.0
 
Jan. 19, 2019, 6 p.m. 2.8 ppb (3) 0.8 ppb (1) 3.7 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.23 ppb (3) 6.0 μg/m3 (5) 5.0 μg/m3 (21) 26.0
 
Jan. 19, 2019, 5 p.m. 3.4 ppb (3) 1.0 ppb (1) 4.2 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) 0.23 ppb (3) 8.0 μg/m3 (7) 3.0 μg/m3 (12) 25.0
 
Jan. 19, 2019, 4 p.m. 4.5 ppb (4) 1.5 ppb (1) 5.3 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) 0.23 ppb (3) 10.0 μg/m3 (9) 4.0 μg/m3 (17) 25.0
 
Jan. 19, 2019, 3 p.m. 4.3 ppb (4) 1.3 ppb (1) 5.0 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (24) 0.23 ppb (3) 9.0 μg/m3 (8) 4.0 μg/m3 (17) 24.0
 
Jan. 19, 2019, 2 p.m. 3.0 ppb (3) 0.3 ppb (0) 3.9 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (24) 0.22 ppb (2) 7.0 μg/m3 (6) 3.0 μg/m3 (12) 24.0
 
Jan. 19, 2019, 1 p.m. 3.9 ppb (4) 0.6 ppb (1) 4.6 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (23) 0.21 ppb (2) 9.0 μg/m3 (8) 2.0 μg/m3 (8) 23.0
 
Jan. 19, 2019, noon 3.9 ppb (4) 0.6 ppb (1) 4.7 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (23) 0.22 ppb (2) 6.0 μg/m3 (5) 3.0 μg/m3 (12) 23.0
 
Jan. 19, 2019, 11 a.m. 3.2 ppb (3) 0.3 ppb (0) 4.2 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (23) 0.22 ppb (2) 7.0 μg/m3 (6) 3.0 μg/m3 (12) 23.0
 
Jan. 19, 2019, 10 a.m. 3.2 ppb (3) 0.5 ppb (0) 4.0 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (24) 0.21 ppb (2) 6.0 μg/m3 (5) 4.0 μg/m3 (17) 24.0
 
Jan. 19, 2019, 9 a.m. 2.6 ppb (2) 0.3 ppb (0) 3.3 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.21 ppb (2) 4.0 μg/m3 (4) 3.0 μg/m3 (12) 25.0
 
Jan. 19, 2019, 8 a.m. 1.7 ppb (2) 0.0 ppb (0) 2.5 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 5.0 μg/m3 (5) 3.0 μg/m3 (12) 25.0
 
Jan. 19, 2019, 7 a.m. 2.4 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.22 ppb (2) 5.0 μg/m3 (5) 4.0 μg/m3 (17) 26.0
 
Jan. 19, 2019, 6 a.m. 1.6 ppb (1) 0.0 ppb (0) 2.4 ppb (2) 1.0 ppb (1) N/A N/A 34.0 ppb (26) 0.21 ppb (2) 8.0 μg/m3 (7) 5.0 μg/m3 (21) 26.0
 
Jan. 19, 2019, 5 a.m. 2.3 ppb (2) 0.3 ppb (0) 3.0 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.21 ppb (2) 7.0 μg/m3 (6) 6.0 μg/m3 (25) 26.0
 
Jan. 19, 2019, 4 a.m. 2.1 ppb (2) 0.2 ppb (0) 2.9 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.21 ppb (2) 7.0 μg/m3 (6) 5.0 μg/m3 (21) 26.0
 
Jan. 19, 2019, 3 a.m. 2.9 ppb (3) 0.5 ppb (0) 3.3 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.22 ppb (2) 7.0 μg/m3 (6) 4.0 μg/m3 (17) 26.0
 
Jan. 19, 2019, 2 a.m. 3.0 ppb (3) 0.3 ppb (0) 3.3 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) 0.22 ppb (2) 8.0 μg/m3 (7) 3.0 μg/m3 (12) 26.0
 
Jan. 19, 2019, 1 a.m. 2.7 ppb (3) 0.2 ppb (0) 3.4 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) 0.21 ppb (2) 14.0 μg/m3 (13) 4.0 μg/m3 (17) 25.0
 
Jan. 19, 2019, midnight 4.1 ppb (4) 0.7 ppb (1) 4.2 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) 0.22 ppb (2) 31.0 μg/m3 (28) 6.0 μg/m3 (25) 28.0
 
Jan. 18, 2019, 11 p.m. 3.1 ppb (3) 0.2 ppb (0) 3.8 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) 0.21 ppb (2) 8.0 μg/m3 (7) 3.0 μg/m3 (12) 26.0
 
Jan. 18, 2019, 10 p.m. 2.5 ppb (2) 0.1 ppb (0) 3.2 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.21 ppb (2) 2.0 μg/m3 (2) 3.0 μg/m3 (12) 26.0
 
Jan. 18, 2019, 9 p.m. 2.3 ppb (2) 0.2 ppb (0) 2.8 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.2 ppb (2) 3.0 μg/m3 (3) 4.0 μg/m3 (17) 27.0
 
Jan. 18, 2019, 8 p.m. 3.1 ppb (3) 0.5 ppb (0) 3.5 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.21 ppb (2) 4.0 μg/m3 (4) 5.0 μg/m3 (21) 27.0
 
Jan. 18, 2019, 7 p.m. 3.7 ppb (3) 0.9 ppb (1) 3.5 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (27) 0.21 ppb (2) 3.0 μg/m3 (3) 3.0 μg/m3 (12) 27.0
 
Jan. 18, 2019, 6 p.m. 2.4 ppb (2) 0.3 ppb (0) 3.0 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.21 ppb (2) 3.0 μg/m3 (3) 3.0 μg/m3 (12) 27.0
 
Jan. 18, 2019, 5 p.m. 2.1 ppb (2) 0.3 ppb (0) 2.7 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.2 ppb (2) 3.0 μg/m3 (3) 4.0 μg/m3 (17) 27.0
 
Jan. 18, 2019, 4 p.m. 2.2 ppb (2) 0.2 ppb (0) 2.8 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.21 ppb (2) 4.0 μg/m3 (4) 5.0 μg/m3 (21) 26.0
 
Jan. 18, 2019, 3 p.m. 2.8 ppb (3) 0.5 ppb (0) 3.1 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.22 ppb (2) 3.0 μg/m3 (3) 5.0 μg/m3 (21) 26.0
 
Jan. 18, 2019, 2 p.m. 2.8 ppb (3) 0.5 ppb (0) 3.3 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.21 ppb (2) 4.0 μg/m3 (4) 3.0 μg/m3 (12) 26.0
 
Jan. 18, 2019, 1 p.m. 3.0 ppb (3) 0.3 ppb (0) 3.7 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) 0.21 ppb (2) 4.0 μg/m3 (4) 4.0 μg/m3 (17) 25.0
 
Jan. 18, 2019, noon 3.9 ppb (4) 0.4 ppb (0) 4.2 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) 0.21 ppb (2) 3.0 μg/m3 (3) 5.0 μg/m3 (21) 25.0
 
Jan. 18, 2019, 11 a.m. 4.5 ppb (4) 0.6 ppb (1) 4.4 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (25) 0.21 ppb (2) 3.0 μg/m3 (3) 5.0 μg/m3 (21) 25.0
 
Jan. 18, 2019, 10 a.m. 6.2 ppb (6) 1.0 ppb (1) 5.8 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) 0.22 ppb (2) 0.0 μg/m3 (0) 5.0 μg/m3 (21) 24.0
 
Jan. 18, 2019, 9 a.m. 5.7 ppb (5) 0.4 ppb (0) 5.5 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) 0.22 ppb (2) 2.0 μg/m3 (2) 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2019, 8 a.m. 4.4 ppb (4) 0.0 ppb (0) 5.3 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 24.0
 
Jan. 18, 2019, 7 a.m. 7.1 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) 0.25 ppb (3) 9.0 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2019, 6 a.m. 12.8 ppb (12) 0.1 ppb (0) 14.4 ppb (13) 12.0 ppb (11) N/A N/A 22.0 ppb (17) 0.28 ppb (3) 9.0 μg/m3 (8) 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2019, 5 a.m. 12.5 ppb (12) 0.1 ppb (0) 14.9 ppb (14) 12.0 ppb (11) N/A 0.0 ppb (0) 22.0 ppb (17) 0.28 ppb (3) 9.0 μg/m3 (8) 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2019, 4 a.m. 8.7 ppb (8) 0.1 ppb (0) 9.7 ppb (9) 8.0 ppb (7) N/A 0.0 ppb (0) 27.0 ppb (21) 0.26 ppb (3) 10.0 μg/m3 (9) 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2019, 3 a.m. 9.3 ppb (9) 0.2 ppb (0) 11.0 ppb (10) 9.0 ppb (8) N/A 0.0 ppb (0) 26.0 ppb (20) 0.27 ppb (3) 10.0 μg/m3 (9) 13.0 μg/m3 (52) 52.0
 
Jan. 18, 2019, 2 a.m. 7.9 ppb (7) 0.3 ppb (0) 9.7 ppb (9) 7.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) 0.26 ppb (3) 12.0 μg/m3 (11) 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2019, 1 a.m. 6.6 ppb (6) 0.1 ppb (0) 8.6 ppb (8) 6.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) 0.27 ppb (3) 15.0 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
Jan. 18, 2019, midnight 5.7 ppb (5) 0.1 ppb (0) 7.5 ppb (7) 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) 0.25 ppb (3) 11.0 μg/m3 (10) 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2019, 11 p.m. 4.4 ppb (4) 0.2 ppb (0) 5.5 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (25) 0.24 ppb (3) 7.0 μg/m3 (6) 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2019, 10 p.m. 3.1 ppb (3) 0.0 ppb (0) 4.3 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) 0.26 ppb (3) 10.0 μg/m3 (9) 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2019, 9 p.m. 3.5 ppb (3) 0.4 ppb (0) 4.9 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) 0.24 ppb (3) 14.0 μg/m3 (13) 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2019, 8 p.m. 4.5 ppb (4) 0.9 ppb (1) 6.0 ppb (6) 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (23) 0.24 ppb (3) 19.0 μg/m3 (17) 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2019, 7 p.m. 5.1 ppb (5) 1.1 ppb (1) 7.1 ppb (7) 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (22) 0.25 ppb (3) 14.0 μg/m3 (13) 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2019, 6 p.m. 5.4 ppb (5) 1.0 ppb (1) 7.3 ppb (7) 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (22) 0.26 ppb (3) 16.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2019, 5 p.m. 7.9 ppb (7) 1.5 ppb (1) 10.2 ppb (9) 6.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (18) 0.28 ppb (3) 20.0 μg/m3 (18) 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2019, 4 p.m. 12.1 ppb (11) 2.7 ppb (3) 14.5 ppb (13) 9.0 ppb (8) N/A 0.0 ppb (0) 20.0 ppb (15) 0.31 ppb (3) 21.0 μg/m3 (19) 12.0 μg/m3 (50) 50.0
 
Jan. 17, 2019, 3 p.m. 25.9 ppb (24) 6.0 ppb (6) 28.1 ppb (26) 20.0 ppb (19) N/A 0.0 ppb (0) 11.0 ppb (8) 0.4 ppb (4) 13.0 μg/m3 (12) 12.0 μg/m3 (50) 50.0
 
Jan. 17, 2019, 2 p.m. 31.6 ppb (29) 6.4 ppb (6) 32.9 ppb (30) 25.0 ppb (23) N/A 0.0 ppb (0) 5.0 ppb (4) 0.45 ppb (5) 12.0 μg/m3 (11) 11.0 μg/m3 (46) 46.0
 
Jan. 17, 2019, 1 p.m. 27.0 ppb (25) 3.1 ppb (3) 28.8 ppb (27) 24.0 ppb (22) N/A 0.0 ppb (0) 5.0 ppb (4) 0.44 ppb (5) 13.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2019, noon 14.4 ppb (13) 0.4 ppb (0) 16.0 ppb (15) 14.0 ppb (13) N/A 0.0 ppb (0) 13.0 ppb (10) 0.32 ppb (4) 9.0 μg/m3 (8) 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2019, 11 a.m. 8.1 ppb (8) 0.2 ppb (0) 9.7 ppb (9) 8.0 ppb (7) N/A 0.0 ppb (0) 18.0 ppb (14) 0.28 ppb (3) 7.0 μg/m3 (6) 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2019, 10 a.m. 8.1 ppb (8) 0.4 ppb (0) 9.1 ppb (8) 8.0 ppb (7) N/A 0.0 ppb (0) 18.0 ppb (14) 0.28 ppb (3) 9.0 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2019, 9 a.m. 9.7 ppb (9) 0.5 ppb (0) 10.8 ppb (10) 9.0 ppb (8) N/A 0.0 ppb (0) 18.0 ppb (14) 0.28 ppb (3) 9.0 μg/m3 (8) 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2019, 8 a.m. 14.3 ppb (13) 0.0 ppb (0) 16.1 ppb (15) 14.0 ppb (13) N/A 0.0 ppb (0) 14.0 ppb (11) N/A 16.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2019, 7 a.m. 16.4 ppb (15) 1.2 ppb (1) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 11.0 ppb (8) 0.31 ppb (3) 13.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2019, 6 a.m. 14.7 ppb (14) -0.3 ppb (0) 19.0 ppb (18) 15.0 ppb (14) N/A N/A 11.0 ppb (8) 0.3 ppb (3) 7.0 μg/m3 (6) 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2019, 5 a.m. 13.4 ppb (12) 1.5 ppb (1) 13.9 ppb (13) 12.0 ppb (11) N/A 0.0 ppb (0) 18.0 ppb (14) 0.27 ppb (3) 7.0 μg/m3 (6) 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2019, 4 a.m. 10.8 ppb (10) 0.5 ppb (0) 11.3 ppb (10) 10.0 ppb (9) N/A 0.0 ppb (0) 22.0 ppb (17) 0.27 ppb (3) 6.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2019, 3 a.m. 10.4 ppb (10) 0.8 ppb (1) 10.4 ppb (10) 9.0 ppb (8) N/A 0.0 ppb (0) 24.0 ppb (18) 0.28 ppb (3) 4.0 μg/m3 (4) 4.0 μg/m3 (17) 18.0
 
Jan. 17, 2019, 2 a.m. 10.0 ppb (9) 1.0 ppb (1) 10.1 ppb (9) 9.0 ppb (8) N/A 0.0 ppb (0) 26.0 ppb (20) 0.25 ppb (3) 7.0 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2019, 1 a.m. 11.3 ppb (10) 1.3 ppb (1) 12.2 ppb (11) 10.0 ppb (9) N/A 0.0 ppb (0) 25.0 ppb (19) 0.35 ppb (4) 8.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2019, midnight 9.7 ppb (9) 1.1 ppb (1) 11.0 ppb (10) 9.0 ppb (8) N/A 0.0 ppb (0) 26.0 ppb (20) 0.24 ppb (3) 7.0 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2019, 11 p.m. 9.3 ppb (9) 0.9 ppb (1) 10.4 ppb (10) 8.0 ppb (7) N/A 0.0 ppb (0) 27.0 ppb (21) 0.44 ppb (5) 10.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2019, 10 p.m. 4.3 ppb (4) 0.3 ppb (0) 4.6 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (25) 0.26 ppb (3) 10.0 μg/m3 (9) 4.0 μg/m3 (17) 25.0
 
Jan. 16, 2019, 9 p.m. 3.3 ppb (3) 0.4 ppb (0) 4.0 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) 0.27 ppb (3) 15.0 μg/m3 (14) 4.0 μg/m3 (17) 25.0
 
Jan. 16, 2019, 8 p.m. 3.0 ppb (3) 0.7 ppb (1) 3.5 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) 0.21 ppb (2) 14.0 μg/m3 (13) 4.0 μg/m3 (17) 25.0
 
Jan. 16, 2019, 7 p.m. 3.8 ppb (4) 0.9 ppb (1) 4.3 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) 0.22 ppb (2) 14.0 μg/m3 (13) 3.0 μg/m3 (12) 25.0
 
Jan. 16, 2019, 6 p.m. 4.3 ppb (4) 1.3 ppb (1) 5.1 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) 0.22 ppb (2) 11.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2019, 5 p.m. 4.4 ppb (4) 1.3 ppb (1) 5.0 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) 0.21 ppb (2) 26.0 μg/m3 (24) 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2019, 4 p.m. 4.4 ppb (4) 1.1 ppb (1) 4.7 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (23) 0.21 ppb (2) 7.0 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2019, 3 p.m. 3.8 ppb (4) 1.2 ppb (1) 3.9 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.2 ppb (2) 11.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2019, 2 p.m. 7.1 ppb (7) 1.8 ppb (2) 6.4 ppb (6) 5.0 ppb (5) N/A 0.0 ppb (0) 27.0 ppb (21) 0.21 ppb (2) 8.0 μg/m3 (7) 3.0 μg/m3 (12) 21.0
 
Jan. 16, 2019, 1 p.m. 5.8 ppb (5) 0.7 ppb (1) 6.0 ppb (6) 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (20) 0.2 ppb (2) 7.0 μg/m3 (6) 3.0 μg/m3 (12) 20.0
 
Jan. 16, 2019, noon 4.9 ppb (5) 0.4 ppb (0) 5.3 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (20) 0.2 ppb (2) 6.0 μg/m3 (5) 4.0 μg/m3 (17) 20.0
 
Jan. 16, 2019, 11 a.m. 3.3 ppb (3) 0.0 ppb (0) 3.8 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (22) 0.19 ppb (2) 3.0 μg/m3 (3) 4.0 μg/m3 (17) 22.0
 
Jan. 16, 2019, 10 a.m. 1.8 ppb (2) 0.1 ppb (0) 1.9 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.18 ppb (2) 0.0 μg/m3 (0) 5.0 μg/m3 (21) 23.0
 
Jan. 16, 2019, 9 a.m. 1.8 ppb (2) 0.4 ppb (0) 1.6 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) 0.17 ppb (2) 0.0 μg/m3 (0) 3.0 μg/m3 (12) 23.0
 
Jan. 16, 2019, 8 a.m. 1.5 ppb (1) 0.0 ppb (0) 1.7 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 0.0 μg/m3 (0) 3.0 μg/m3 (12) 23.0
 
Jan. 16, 2019, 7 a.m. 1.5 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) 0.18 ppb (2) -1.0 μg/m3 (0) 3.0 μg/m3 (12) 23.0
 
Jan. 16, 2019, 6 a.m. 1.1 ppb (1) -0.2 ppb (0) 1.5 ppb (1) 1.0 ppb (1) N/A N/A 30.0 ppb (23) 0.19 ppb (2) 2.0 μg/m3 (2) 5.0 μg/m3 (21) 23.0
 
Jan. 16, 2019, 5 a.m. 1.4 ppb (1) 0.0 ppb (0) 1.7 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) 0.19 ppb (2) 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2019, 4 a.m. 1.5 ppb (1) 0.0 ppb (0) 1.9 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (20) 0.2 ppb (2) 8.0 μg/m3 (7) 7.0 μg/m3 (29) 29.0
 
Jan. 16, 2019, 3 a.m. 1.8 ppb (2) 0.0 ppb (0) 2.4 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (19) 0.21 ppb (2) 8.0 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2019, 2 a.m. 2.3 ppb (2) 0.0 ppb (0) 3.1 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (19) 0.21 ppb (2) 7.0 μg/m3 (6) 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2019, 1 a.m. 3.1 ppb (3) 0.1 ppb (0) 4.4 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) 0.21 ppb (2) 7.0 μg/m3 (6) 8.0 μg/m3 (33) 33.0
 
Jan. 16, 2019, midnight 3.6 ppb (3) 0.1 ppb (0) 4.9 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) 0.21 ppb (2) 9.0 μg/m3 (8) 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2019, 11 p.m. 4.5 ppb (4) 0.0 ppb (0) 5.6 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (15) 0.23 ppb (3) 8.0 μg/m3 (7) 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2019, 10 p.m. 5.1 ppb (5) 0.3 ppb (0) 5.8 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 19.0 ppb (15) 0.21 ppb (2) 10.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2019, 9 p.m. 5.3 ppb (5) 0.7 ppb (1) 6.0 ppb (6) 5.0 ppb (5) N/A 0.0 ppb (0) 19.0 ppb (15) 0.22 ppb (2) 7.0 μg/m3 (6) 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2019, 8 p.m. 7.9 ppb (7) 1.1 ppb (1) 9.1 ppb (8) 7.0 ppb (6) N/A 0.0 ppb (0) 16.0 ppb (12) 0.23 ppb (3) 9.0 μg/m3 (8) 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2019, 7 p.m. 6.6 ppb (6) 1.1 ppb (1) 7.5 ppb (7) 5.0 ppb (5) N/A 0.0 ppb (0) 16.0 ppb (12) 0.22 ppb (2) 11.0 μg/m3 (10) 3.0 μg/m3 (12) 12.0
 
Jan. 15, 2019, 6 p.m. 6.5 ppb (6) 1.3 ppb (1) 6.8 ppb (6) 5.0 ppb (5) N/A 0.0 ppb (0) 16.0 ppb (12) 0.22 ppb (2) 4.0 μg/m3 (4) 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2019, 5 p.m. 8.4 ppb (8) 1.9 ppb (2) 8.6 ppb (8) 6.0 ppb (6) N/A 0.0 ppb (0) 14.0 ppb (11) 0.22 ppb (2) 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2019, 4 p.m. 7.3 ppb (7) 1.6 ppb (1) 7.3 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 14.0 ppb (11) 0.21 ppb (2) 4.0 μg/m3 (4) 3.0 μg/m3 (12) 12.0
 
Jan. 15, 2019, 3 p.m. 7.2 ppb (7) 1.1 ppb (1) 7.1 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 15.0 ppb (12) 0.21 ppb (2) 1.0 μg/m3 (1) 4.0 μg/m3 (17) 17.0
 
Jan. 15, 2019, 2 p.m. 8.1 ppb (8) 1.0 ppb (1) 8.0 ppb (7) 7.0 ppb (6) N/A 0.0 ppb (0) 15.0 ppb (12) 0.22 ppb (2) 2.0 μg/m3 (2) 4.0 μg/m3 (17) 17.0
 
Jan. 15, 2019, 1 p.m. 6.7 ppb (6) 0.7 ppb (1) 6.7 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) 0.22 ppb (2) 5.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2019, noon 6.9 ppb (6) 1.0 ppb (1) 7.4 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) 0.22 ppb (2) 8.0 μg/m3 (7) 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2019, 11 a.m. 7.0 ppb (6) 0.4 ppb (0) 8.4 ppb (8) 6.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) 0.23 ppb (3) 8.0 μg/m3 (7) 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2019, 10 a.m. 7.3 ppb (7) 0.2 ppb (0) 8.4 ppb (8) 7.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) 0.23 ppb (3) 9.0 μg/m3 (8) 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2019, 9 a.m. 9.4 ppb (9) 0.4 ppb (0) 10.4 ppb (10) 9.0 ppb (8) N/A 0.0 ppb (0) 16.0 ppb (12) 0.23 ppb (3) 9.0 μg/m3 (8) 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2019, 8 a.m. 7.5 ppb (7) -0.2 ppb (0) 8.3 ppb (8) 7.0 ppb (6) N/A 0.0 ppb (0) 17.0 ppb (13) N/A 5.0 μg/m3 (5) 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2019, 7 a.m. 5.7 ppb (5) 0.1 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 20.0 ppb (15) 0.22 ppb (2) 6.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2019, 6 a.m. 5.5 ppb (5) -0.2 ppb (0) 6.2 ppb (6) 5.0 ppb (5) N/A N/A 20.0 ppb (15) 0.22 ppb (2) 4.0 μg/m3 (4) 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2019, 5 a.m. 3.4 ppb (3) 0.0 ppb (0) 3.8 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) 0.21 ppb (2) 5.0 μg/m3 (5) 4.0 μg/m3 (17) 17.0
 
Jan. 15, 2019, 4 a.m. 3.5 ppb (3) 0.2 ppb (0) 3.5 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (18) 0.2 ppb (2) 3.0 μg/m3 (3) 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2019, 3 a.m. 2.7 ppb (3) 0.1 ppb (0) 2.7 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (18) 0.21 ppb (2) 3.0 μg/m3 (3) 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2019, 2 a.m. 3.1 ppb (3) 0.3 ppb (0) 2.9 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (18) 0.21 ppb (2) 2.0 μg/m3 (2) 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2019, 1 a.m. 6.5 ppb (6) 0.7 ppb (1) 6.2 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) 0.23 ppb (3) 3.0 μg/m3 (3) 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2019, midnight 5.1 ppb (5) 0.4 ppb (0) 5.0 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 19.0 ppb (15) 0.22 ppb (2) 4.0 μg/m3 (4) 3.0 μg/m3 (12) 15.0
 
Jan. 14, 2019, 11 p.m. 4.2 ppb (4) 0.3 ppb (0) 4.1 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (15) 0.22 ppb (2) 3.0 μg/m3 (3) 3.0 μg/m3 (12) 15.0
 
Jan. 14, 2019, 10 p.m. 4.1 ppb (4) 0.4 ppb (0) 3.8 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (15) 0.21 ppb (2) 1.0 μg/m3 (1) 4.0 μg/m3 (17) 17.0
 
Jan. 14, 2019, 9 p.m. 3.9 ppb (4) 0.4 ppb (0) 4.1 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) 0.2 ppb (2) 6.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2019, 8 p.m. 6.8 ppb (6) 1.0 ppb (1) 6.4 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) 0.21 ppb (2) 10.0 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2019, 7 p.m. 7.7 ppb (7) 1.4 ppb (1) 7.6 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) 0.23 ppb (3) 11.0 μg/m3 (10) 8.0 μg/m3 (33) 33.0
 
Jan. 14, 2019, 6 p.m. 7.5 ppb (7) 1.1 ppb (1) 7.4 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) 0.23 ppb (3) 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2019, 5 p.m. 7.7 ppb (7) 0.7 ppb (1) 7.9 ppb (7) 7.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) 0.23 ppb (3) 7.0 μg/m3 (6) 8.0 μg/m3 (33) 33.0
 
Jan. 14, 2019, 4 p.m. 7.3 ppb (7) 0.5 ppb (0) 7.1 ppb (7) 7.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (18) 0.22 ppb (2) 6.0 μg/m3 (5) 8.0 μg/m3 (33) 33.0
 
Jan. 14, 2019, 3 p.m. 9.3 ppb (9) 0.4 ppb (0) 9.3 ppb (9) 9.0 ppb (8) N/A 0.0 ppb (0) 21.0 ppb (16) 0.23 ppb (3) 5.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2019, 2 p.m. 7.3 ppb (7) 0.4 ppb (0) 7.5 ppb (7) 7.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (17) 0.22 ppb (2) 6.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2019, 1 p.m. 7.4 ppb (7) 0.2 ppb (0) 7.9 ppb (7) 7.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (17) 0.23 ppb (3) 9.0 μg/m3 (8) 8.0 μg/m3 (33) 33.0
 
Jan. 14, 2019, noon 10.4 ppb (10) 0.3 ppb (0) 11.0 ppb (10) 10.0 ppb (9) N/A 0.0 ppb (0) 19.0 ppb (15) 0.24 ppb (3) 5.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2019, 11 a.m. 7.2 ppb (7) 0.2 ppb (0) 7.4 ppb (7) 7.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (18) 0.23 ppb (3) 7.0 μg/m3 (6) 4.0 μg/m3 (17) 18.0
 
Jan. 14, 2019, 10 a.m. 4.6 ppb (4) 0.0 ppb (0) 4.9 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (20) 0.21 ppb (2) 9.0 μg/m3 (8) 4.0 μg/m3 (17) 20.0
 
Jan. 14, 2019, 9 a.m. 4.0 ppb (4) 0.2 ppb (0) 4.2 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (20) 0.2 ppb (2) 8.0 μg/m3 (7) 8.0 μg/m3 (33) 33.0
 
Jan. 14, 2019, 8 a.m. 3.2 ppb (3) -0.1 ppb (0) 4.2 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 14.0 μg/m3 (13) 10.0 μg/m3 (42) 42.0
 
Jan. 14, 2019, 7 a.m. 5.2 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (18) 0.23 ppb (3) 18.0 μg/m3 (16) 15.0 μg/m3 (56) 56.0
 
Jan. 14, 2019, 6 a.m. 10.7 ppb (10) -0.2 ppb (0) 12.8 ppb (12) 11.0 ppb (10) N/A N/A 18.0 ppb (14) 0.26 ppb (3) 18.0 μg/m3 (16) 16.0 μg/m3 (59) 59.0
 
Jan. 14, 2019, 5 a.m. 12.0 ppb (11) 0.3 ppb (0) 13.5 ppb (12) 12.0 ppb (11) N/A 0.0 ppb (0) 19.0 ppb (15) 0.26 ppb (3) 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2019, 4 a.m. 7.4 ppb (7) 0.3 ppb (0) 8.4 ppb (8) 7.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (18) 0.26 ppb (3) 11.0 μg/m3 (10) 11.0 μg/m3 (46) 46.0
 
Jan. 14, 2019, 3 a.m. 5.8 ppb (5) 0.0 ppb (0) 7.0 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (20) 0.24 ppb (3) 12.0 μg/m3 (11) 12.0 μg/m3 (50) 50.0
 
Jan. 14, 2019, 2 a.m. 5.8 ppb (5) 0.2 ppb (0) 6.8 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) 0.24 ppb (3) 15.0 μg/m3 (14) 13.0 μg/m3 (52) 52.0
 
Jan. 14, 2019, 1 a.m. 5.7 ppb (5) 0.0 ppb (0) 7.5 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (20) 0.26 ppb (3) 14.0 μg/m3 (13) 13.0 μg/m3 (52) 52.0
 
Jan. 14, 2019, midnight 7.0 ppb (6) 0.2 ppb (0) 8.4 ppb (8) 7.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (20) 0.27 ppb (3) 19.0 μg/m3 (17) 16.0 μg/m3 (59) 59.0
 
Jan. 13, 2019, 11 p.m. 7.2 ppb (7) 0.0 ppb (0) 8.6 ppb (8) 7.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) 0.27 ppb (3) 16.0 μg/m3 (15) 13.0 μg/m3 (52) 52.0
 
Jan. 13, 2019, 10 p.m. 8.4 ppb (8) 0.2 ppb (0) 10.0 ppb (9) 8.0 ppb (7) N/A 0.0 ppb (0) 26.0 ppb (20) 0.27 ppb (3) 22.0 μg/m3 (20) 15.0 μg/m3 (56) 56.0
 
Jan. 13, 2019, 9 p.m. 7.1 ppb (7) 0.6 ppb (1) 9.0 ppb (8) 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) 0.26 ppb (3) 22.0 μg/m3 (20) 14.0 μg/m3 (54) 54.0
 
Jan. 13, 2019, 8 p.m. 5.7 ppb (5) 0.5 ppb (0) 8.4 ppb (8) 5.0 ppb (5) N/A 0.0 ppb (0) 25.0 ppb (19) 0.26 ppb (3) 23.0 μg/m3 (21) 15.0 μg/m3 (56) 56.0
 
Jan. 13, 2019, 7 p.m. 8.5 ppb (8) 1.9 ppb (2) 11.1 ppb (10) 7.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (17) 0.26 ppb (3) 26.0 μg/m3 (24) 17.0 μg/m3 (61) 61.0
 
Jan. 13, 2019, 6 p.m. 11.1 ppb (10) 2.3 ppb (2) 12.8 ppb (12) 9.0 ppb (8) N/A 0.0 ppb (0) 20.0 ppb (15) 0.27 ppb (3) 26.0 μg/m3 (24) 18.0 μg/m3 (63) 63.0
 
Jan. 13, 2019, 5 p.m. 10.9 ppb (10) 1.9 ppb (2) 11.9 ppb (11) 9.0 ppb (8) N/A 0.0 ppb (0) 21.0 ppb (16) 0.26 ppb (3) 15.0 μg/m3 (14) 8.0 μg/m3 (33) 33.0
 
Jan. 13, 2019, 4 p.m. 9.9 ppb (9) 1.3 ppb (1) 10.5 ppb (10) 9.0 ppb (8) N/A 0.0 ppb (0) 22.0 ppb (17) 0.25 ppb (3) 12.0 μg/m3 (11) 4.0 μg/m3 (17) 17.0
 
Jan. 13, 2019, 3 p.m. 9.9 ppb (9) 0.8 ppb (1) 10.5 ppb (10) 9.0 ppb (8) N/A 0.0 ppb (0) 22.0 ppb (17) 0.24 ppb (3) 4.0 μg/m3 (4) 7.0 μg/m3 (29) 29.0