AQSQID: 000101701

Site Name: Quesnel Senior Secondary

Location: Quesnel, CC

Reporting: True, Located: True

Current AQI: 11.0

Quesnel CC, CA: 52.9822, -122.4922

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 18, 2019, 1 a.m. N/A 0.6 ppb (1) N/A 5.0 ppb (5) N/A 3.0 ppb (4) 14.0 ppb (11) N/A N/A 0.5 μg/m3 (2) 11.0
 
Sept. 18, 2019, midnight N/A 1.1 ppb (1) N/A 6.0 ppb (6) N/A 3.0 ppb (4) 17.0 ppb (13) N/A N/A 0.9 μg/m3 (4) 13.0
 
Sept. 17, 2019, 11 p.m. N/A 1.6 ppb (1) N/A 6.0 ppb (6) N/A 3.0 ppb (4) 18.0 ppb (14) N/A N/A 0.8 μg/m3 (3) 14.0
 
Sept. 17, 2019, 10 p.m. N/A 1.0 ppb (1) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 22.0 ppb (17) N/A N/A 0.6 μg/m3 (2) 17.0
 
Sept. 17, 2019, 9 p.m. N/A 1.1 ppb (1) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 22.0 ppb (17) N/A N/A 0.3 μg/m3 (1) 17.0
 
Sept. 17, 2019, 8 p.m. N/A 0.9 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 23.0 ppb (18) N/A N/A 0.2 μg/m3 (1) 18.0
 
Sept. 17, 2019, 7 p.m. N/A 0.5 ppb (0) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 22.0 ppb (17) N/A N/A 0.1 μg/m3 (0) 17.0
 
Sept. 17, 2019, 6 p.m. N/A 2.6 ppb (2) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 18.0 ppb (14) N/A N/A 0.5 μg/m3 (2) 14.0
 
Sept. 17, 2019, 5 p.m. N/A 12.3 ppb (11) N/A 6.0 ppb (6) N/A 3.0 ppb (4) 6.0 ppb (5) N/A N/A 3.8 μg/m3 (16) 16.0
 
Sept. 17, 2019, 4 p.m. N/A 13.1 ppb (12) N/A 5.0 ppb (5) N/A 3.0 ppb (4) 3.0 ppb (2) N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 17, 2019, 3 p.m. N/A 7.5 ppb (7) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 2.0 ppb (2) N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 17, 2019, 2 p.m. N/A 3.8 ppb (4) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 1.0 ppb (1) N/A N/A 4.7 μg/m3 (20) 20.0
 
Sept. 17, 2019, 1 p.m. N/A 2.7 ppb (3) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 1.0 ppb (1) N/A N/A 2.8 μg/m3 (12) 12.0
 
Sept. 17, 2019, noon N/A 1.4 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 1.0 ppb (1) N/A N/A 2.6 μg/m3 (11) 11.0
 
Sept. 17, 2019, 4 a.m. N/A 0.9 ppb (1) N/A 9.0 ppb (8) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 4.8 μg/m3 (20) 20.0
 
Sept. 17, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.2 μg/m3 (13) 13.0
 
Sept. 17, 2019, 2 a.m. N/A 0.7 ppb (1) N/A 6.0 ppb (6) N/A 3.0 ppb (4) 11.0 ppb (8) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 17, 2019, 1 a.m. N/A 0.5 ppb (0) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 22.0 ppb (17) N/A N/A 5.2 μg/m3 (22) 22.0
 
Sept. 17, 2019, midnight N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 25.0 ppb (19) N/A N/A 2.8 μg/m3 (12) 19.0
 
Sept. 16, 2019, 11 p.m. N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 25.0 ppb (19) N/A N/A 1.9 μg/m3 (8) 19.0
 
Sept. 16, 2019, 10 p.m. N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 26.0 ppb (20) N/A N/A 1.9 μg/m3 (8) 20.0
 
Sept. 16, 2019, 9 p.m. N/A 1.2 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 27.0 ppb (21) N/A N/A 1.7 μg/m3 (7) 21.0
 
Sept. 16, 2019, 8 p.m. N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 24.0 ppb (18) N/A N/A 1.9 μg/m3 (8) 18.0
 
Sept. 16, 2019, 7 p.m. N/A 0.7 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 21.0 ppb (16) N/A N/A 3.4 μg/m3 (14) 16.0
 
Sept. 16, 2019, 6 p.m. N/A 1.1 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 19.0 ppb (15) N/A N/A 4.3 μg/m3 (18) 18.0
 
Sept. 16, 2019, 5 p.m. N/A 1.1 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 17.0 ppb (13) N/A N/A 5.8 μg/m3 (24) 24.0
 
Sept. 16, 2019, 4 p.m. N/A 0.8 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 17.0 ppb (13) N/A N/A 5.1 μg/m3 (21) 21.0
 
Sept. 16, 2019, 3 p.m. N/A 0.7 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 13.0 ppb (10) N/A N/A 3.2 μg/m3 (13) 13.0
 
Sept. 16, 2019, 2 p.m. N/A 1.6 ppb (1) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 9.0 ppb (7) N/A N/A 2.7 μg/m3 (11) 11.0
 
Sept. 16, 2019, 1 p.m. N/A 1.3 ppb (1) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 8.0 ppb (6) N/A N/A 1.5 μg/m3 (6) 6.0
 
Sept. 16, 2019, noon N/A 1.0 ppb (1) N/A 5.0 ppb (5) N/A 3.0 ppb (4) 8.0 ppb (6) N/A N/A 1.4 μg/m3 (6) 6.0
 
Sept. 16, 2019, 11 a.m. N/A 1.2 ppb (1) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 10.0 ppb (8) N/A N/A 1.9 μg/m3 (8) 8.0
 
Sept. 16, 2019, 10 a.m. N/A 0.1 ppb (0) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 13.0 ppb (10) N/A N/A 1.5 μg/m3 (6) 10.0
 
Sept. 16, 2019, 9 a.m. N/A 0.1 ppb (0) N/A 5.0 ppb (5) N/A 3.0 ppb (4) 15.0 ppb (12) N/A N/A 1.3 μg/m3 (5) 12.0
 
Sept. 16, 2019, 8 a.m. N/A 0.1 ppb (0) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 17.0 ppb (13) N/A N/A 1.3 μg/m3 (5) 13.0
 
Sept. 16, 2019, 7 a.m. N/A 0.3 ppb (0) N/A 6.0 ppb (6) N/A 3.0 ppb (4) 17.0 ppb (13) N/A N/A 1.3 μg/m3 (5) 13.0
 
Sept. 16, 2019, 6 a.m. N/A 0.1 ppb (0) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 20.0 ppb (15) N/A N/A 0.8 μg/m3 (3) 15.0
 
Sept. 16, 2019, 5 a.m. N/A 0.2 ppb (0) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 13.0 ppb (10) N/A N/A 1.3 μg/m3 (5) 10.0
 
Sept. 16, 2019, 4 a.m. N/A 1.5 ppb (1) N/A 8.0 ppb (7) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 16, 2019, 3 a.m. N/A 2.3 ppb (2) N/A 10.0 ppb (9) N/A 3.0 ppb (4) 9.0 ppb (7) N/A N/A 2.2 μg/m3 (9) 9.0
 
Sept. 16, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.7 μg/m3 (7) 7.0
 
Sept. 16, 2019, 1 a.m. N/A 0.3 ppb (0) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 20.0 ppb (15) N/A N/A 0.9 μg/m3 (4) 15.0
 
Sept. 16, 2019, midnight N/A 0.4 ppb (0) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 24.0 ppb (18) N/A N/A 0.7 μg/m3 (3) 18.0
 
Sept. 15, 2019, 11 p.m. N/A 0.9 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 22.0 ppb (17) N/A N/A 1.0 μg/m3 (4) 17.0
 
Sept. 15, 2019, 10 p.m. N/A 0.7 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 21.0 ppb (16) N/A N/A 2.9 μg/m3 (12) 16.0
 
Sept. 15, 2019, 9 p.m. N/A 0.5 ppb (0) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 23.0 ppb (18) N/A N/A 3.5 μg/m3 (15) 18.0
 
Sept. 15, 2019, 8 p.m. N/A 1.2 ppb (1) N/A 3.0 ppb (3) N/A 4.0 ppb (6) 22.0 ppb (17) N/A N/A 3.3 μg/m3 (14) 17.0
 
Sept. 15, 2019, 7 p.m. N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 21.0 ppb (16) N/A N/A 2.9 μg/m3 (12) 16.0
 
Sept. 15, 2019, 6 p.m. N/A 0.6 ppb (1) N/A 1.0 ppb (1) N/A 3.0 ppb (4) 18.0 ppb (14) N/A N/A 1.9 μg/m3 (8) 14.0
 
Sept. 15, 2019, 5 p.m. N/A 0.9 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 13.0 ppb (10) N/A N/A 1.8 μg/m3 (8) 10.0
 
Sept. 15, 2019, 4 p.m. N/A 1.2 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 9.0 ppb (7) N/A N/A 1.7 μg/m3 (7) 7.0
 
Sept. 15, 2019, 3 p.m. N/A 0.5 ppb (0) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 6.0 ppb (5) N/A N/A 2.6 μg/m3 (11) 11.0
 
Sept. 15, 2019, 2 p.m. N/A 0.4 ppb (0) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 5.0 ppb (4) N/A N/A 3.3 μg/m3 (14) 14.0
 
Sept. 15, 2019, 1 p.m. N/A 0.2 ppb (0) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 5.0 ppb (4) N/A N/A 1.6 μg/m3 (7) 7.0
 
Sept. 15, 2019, noon N/A 0.4 ppb (0) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 0.9 μg/m3 (4) 4.0
 
Sept. 15, 2019, 11 a.m. N/A 0.2 ppb (0) N/A 1.0 ppb (1) N/A 3.0 ppb (4) 8.0 ppb (6) N/A N/A 1.0 μg/m3 (4) 6.0
 
Sept. 15, 2019, 10 a.m. N/A 0.1 ppb (0) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 8.0 ppb (6) N/A N/A 2.2 μg/m3 (9) 9.0
 
Sept. 15, 2019, 9 a.m. N/A 0.1 ppb (0) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 8.0 ppb (6) N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 15, 2019, 8 a.m. N/A 0.3 ppb (0) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 7.0 ppb (5) N/A N/A 2.4 μg/m3 (10) 10.0
 
Sept. 15, 2019, 7 a.m. N/A 0.2 ppb (0) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 9.0 ppb (7) N/A N/A 1.9 μg/m3 (8) 8.0
 
Sept. 15, 2019, 6 a.m. N/A 0.1 ppb (0) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 9.0 ppb (7) N/A N/A 3.2 μg/m3 (13) 13.0
 
Sept. 15, 2019, 5 a.m. N/A 0.4 ppb (0) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 5.0 ppb (4) N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 15, 2019, 4 a.m. N/A 5.7 ppb (5) N/A 9.0 ppb (8) N/A 3.0 ppb (4) 2.0 ppb (2) N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 15, 2019, 3 a.m. N/A 0.2 ppb (0) N/A 7.0 ppb (6) N/A 3.0 ppb (4) 8.0 ppb (6) N/A N/A 5.6 μg/m3 (23) 23.0
 
Sept. 15, 2019, 2 a.m. N/A 0.2 ppb (0) N/A 6.0 ppb (6) N/A 3.0 ppb (4) 19.0 ppb (15) N/A N/A 1.9 μg/m3 (8) 15.0
 
Sept. 15, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.7 μg/m3 (11) 11.0
 
Sept. 15, 2019, midnight N/A 0.4 ppb (0) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 23.0 ppb (18) N/A N/A 1.1 μg/m3 (5) 18.0
 
Sept. 14, 2019, 11 p.m. N/A 1.5 ppb (1) N/A 8.0 ppb (7) N/A 3.0 ppb (4) 11.0 ppb (8) N/A N/A 2.9 μg/m3 (12) 12.0
 
Sept. 14, 2019, 10 p.m. N/A 0.8 ppb (1) N/A 5.0 ppb (5) N/A 3.0 ppb (4) 15.0 ppb (12) N/A N/A 1.8 μg/m3 (8) 12.0
 
Sept. 14, 2019, 9 p.m. N/A 1.2 ppb (1) N/A 5.0 ppb (5) N/A 3.0 ppb (4) 12.0 ppb (9) N/A N/A 3.8 μg/m3 (16) 16.0
 
Sept. 14, 2019, 8 p.m. N/A 1.4 ppb (1) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 10.0 ppb (8) N/A N/A 3.7 μg/m3 (15) 15.0
 
Sept. 14, 2019, 7 p.m. N/A 2.5 ppb (2) N/A 5.0 ppb (5) N/A 3.0 ppb (4) 6.0 ppb (5) N/A N/A 1.4 μg/m3 (6) 6.0
 
Sept. 14, 2019, 6 p.m. N/A 4.2 ppb (4) N/A 5.0 ppb (5) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 1.4 μg/m3 (6) 6.0
 
Sept. 14, 2019, 5 p.m. N/A 2.0 ppb (2) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 5.0 ppb (4) N/A N/A 0.7 μg/m3 (3) 4.0
 
Sept. 14, 2019, 4 p.m. N/A 2.3 ppb (2) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 1.9 μg/m3 (8) 8.0
 
Sept. 14, 2019, 3 p.m. N/A 3.3 ppb (3) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 1.4 μg/m3 (6) 6.0
 
Sept. 14, 2019, 2 p.m. N/A 3.0 ppb (3) N/A 5.0 ppb (5) N/A 3.0 ppb (4) 3.0 ppb (2) N/A N/A 1.1 μg/m3 (5) 5.0
 
Sept. 14, 2019, 1 p.m. N/A 2.0 ppb (2) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 3.0 ppb (2) N/A N/A 3.7 μg/m3 (15) 15.0
 
Sept. 14, 2019, noon N/A 0.3 ppb (0) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 5.0 ppb (4) N/A N/A 5.3 μg/m3 (22) 22.0
 
Sept. 14, 2019, 11 a.m. N/A 0.3 ppb (0) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 5.0 ppb (4) N/A N/A 6.9 μg/m3 (29) 29.0
 
Sept. 14, 2019, 10 a.m. N/A 1.5 ppb (1) N/A 5.0 ppb (5) N/A 3.0 ppb (4) 3.0 ppb (2) N/A N/A 4.1 μg/m3 (17) 17.0
 
Sept. 14, 2019, 9 a.m. N/A 0.2 ppb (0) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 7.0 ppb (5) N/A N/A 2.6 μg/m3 (11) 11.0
 
Sept. 14, 2019, 8 a.m. N/A 0.1 ppb (0) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 5.0 ppb (4) N/A N/A 3.5 μg/m3 (15) 15.0
 
Sept. 14, 2019, 7 a.m. N/A 0.2 ppb (0) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 6.0 ppb (5) N/A N/A 1.0 μg/m3 (4) 5.0
 
Sept. 14, 2019, 6 a.m. N/A 0.8 ppb (1) N/A 5.0 ppb (5) N/A 3.0 ppb (4) 5.0 ppb (4) N/A N/A 2.1 μg/m3 (9) 9.0
 
Sept. 14, 2019, 5 a.m. N/A 1.8 ppb (2) N/A 7.0 ppb (6) N/A 3.0 ppb (4) 3.0 ppb (2) N/A N/A 4.8 μg/m3 (20) 20.0
 
Sept. 14, 2019, 4 a.m. N/A 0.9 ppb (1) N/A 7.0 ppb (6) N/A 3.0 ppb (4) 5.0 ppb (4) N/A N/A 1.0 μg/m3 (4) 6.0
 
Sept. 14, 2019, 3 a.m. N/A 0.9 ppb (1) N/A 8.0 ppb (7) N/A 3.0 ppb (4) 5.0 ppb (4) N/A N/A 1.4 μg/m3 (6) 7.0
 
Sept. 14, 2019, 2 a.m. N/A 1.4 ppb (1) N/A 10.0 ppb (9) N/A 3.0 ppb (4) 6.0 ppb (5) N/A N/A 3.2 μg/m3 (13) 13.0
 
Sept. 14, 2019, 1 a.m. N/A 1.5 ppb (1) N/A 12.0 ppb (11) N/A 3.0 ppb (4) 10.0 ppb (8) N/A N/A 1.9 μg/m3 (8) 11.0
 
Sept. 14, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.2 μg/m3 (13) 13.0
 
Sept. 13, 2019, 11 p.m. N/A 0.5 ppb (0) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 23.0 ppb (18) N/A N/A 1.6 μg/m3 (7) 18.0
 
Sept. 13, 2019, 10 p.m. N/A 0.5 ppb (0) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 25.0 ppb (19) N/A N/A 1.6 μg/m3 (7) 19.0
 
Sept. 13, 2019, 9 p.m. N/A 0.4 ppb (0) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 28.0 ppb (22) N/A N/A 1.1 μg/m3 (5) 22.0
 
Sept. 13, 2019, 8 p.m. N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 27.0 ppb (21) N/A N/A 2.6 μg/m3 (11) 21.0
 
Sept. 13, 2019, 7 p.m. N/A 0.6 ppb (1) N/A 1.0 ppb (1) N/A 3.0 ppb (4) 24.0 ppb (18) N/A N/A 1.4 μg/m3 (6) 18.0
 
Sept. 13, 2019, 6 p.m. N/A 0.6 ppb (1) N/A 1.0 ppb (1) N/A 3.0 ppb (4) 22.0 ppb (17) N/A N/A 0.0 μg/m3 (0) 17.0
 
Sept. 13, 2019, 5 p.m. N/A 0.8 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 16.0 ppb (12) N/A N/A 0.3 μg/m3 (1) 12.0
 
Sept. 13, 2019, 4 p.m. N/A 3.0 ppb (3) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 9.0 ppb (7) N/A N/A 2.1 μg/m3 (9) 9.0
 
Sept. 13, 2019, 3 p.m. N/A 4.8 ppb (4) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 3.9 μg/m3 (16) 16.0
 
Sept. 13, 2019, 2 p.m. N/A 12.9 ppb (12) N/A 5.0 ppb (5) N/A 3.0 ppb (4) 1.0 ppb (1) N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 13, 2019, 1 p.m. N/A 5.6 ppb (5) N/A 5.0 ppb (5) N/A 3.0 ppb (4) 0.0 ppb (0) N/A N/A 3.7 μg/m3 (15) 15.0
 
Sept. 13, 2019, noon N/A 2.5 ppb (2) N/A 5.0 ppb (5) N/A 3.0 ppb (4) 1.0 ppb (1) N/A N/A 2.4 μg/m3 (10) 10.0
 
Sept. 13, 2019, 11 a.m. N/A 1.5 ppb (1) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 2.0 ppb (2) N/A N/A 2.7 μg/m3 (11) 11.0
 
Sept. 13, 2019, 10 a.m. N/A 1.5 ppb (1) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 2.0 ppb (2) N/A N/A 2.4 μg/m3 (10) 10.0
 
Sept. 13, 2019, 9 a.m. N/A 1.0 ppb (1) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 2.0 ppb (2) N/A N/A 4.4 μg/m3 (18) 18.0
 
Sept. 13, 2019, 8 a.m. N/A 0.8 ppb (1) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 2.0 ppb (2) N/A N/A 2.3 μg/m3 (10) 10.0
 
Sept. 13, 2019, 7 a.m. N/A 1.1 ppb (1) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 1.0 ppb (1) N/A N/A 1.7 μg/m3 (7) 7.0
 
Sept. 13, 2019, 6 a.m. N/A 1.6 ppb (1) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 2.0 ppb (2) N/A N/A 2.5 μg/m3 (10) 10.0
 
Sept. 13, 2019, 5 a.m. N/A 2.5 ppb (2) N/A 6.0 ppb (6) N/A 3.0 ppb (4) 1.0 ppb (1) N/A N/A 2.5 μg/m3 (10) 10.0
 
Sept. 13, 2019, 4 a.m. N/A 2.8 ppb (3) N/A 8.0 ppb (7) N/A 3.0 ppb (4) 2.0 ppb (2) N/A N/A 0.8 μg/m3 (3) 7.0
 
Sept. 13, 2019, 3 a.m. N/A 6.7 ppb (6) N/A 11.0 ppb (10) N/A 3.0 ppb (4) 2.0 ppb (2) N/A N/A 0.6 μg/m3 (2) 10.0
 
Sept. 13, 2019, 2 a.m. N/A 1.9 ppb (2) N/A 9.0 ppb (8) N/A 3.0 ppb (4) 6.0 ppb (5) N/A N/A 0.6 μg/m3 (2) 8.0
 
Sept. 13, 2019, 1 a.m. N/A 2.3 ppb (2) N/A 10.0 ppb (9) N/A 3.0 ppb (4) 8.0 ppb (6) N/A N/A 0.5 μg/m3 (2) 9.0
 
Sept. 13, 2019, midnight N/A 1.3 ppb (1) N/A 9.0 ppb (8) N/A 3.0 ppb (4) 11.0 ppb (8) N/A N/A 0.5 μg/m3 (2) 8.0
 
Sept. 12, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.7 μg/m3 (3) 3.0
 
Sept. 12, 2019, 10 p.m. N/A 0.9 ppb (1) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 15.0 ppb (12) N/A N/A 0.4 μg/m3 (2) 12.0
 
Sept. 12, 2019, 9 p.m. N/A 1.5 ppb (1) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 15.0 ppb (12) N/A N/A 0.1 μg/m3 (0) 12.0
 
Sept. 12, 2019, 8 p.m. N/A 0.9 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 16.0 ppb (12) N/A N/A 0.5 μg/m3 (2) 12.0
 
Sept. 12, 2019, 7 p.m. N/A 1.0 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 14.0 ppb (11) N/A N/A 0.7 μg/m3 (3) 11.0
 
Sept. 12, 2019, 6 p.m. N/A 1.7 ppb (2) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 12.0 ppb (9) N/A N/A 0.3 μg/m3 (1) 9.0
 
Sept. 12, 2019, 5 p.m. N/A 4.0 ppb (4) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 8.0 ppb (6) N/A N/A 1.1 μg/m3 (5) 6.0
 
Sept. 12, 2019, 4 p.m. N/A 5.7 ppb (5) N/A 5.0 ppb (5) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 2.2 μg/m3 (9) 9.0
 
Sept. 12, 2019, 3 p.m. N/A 4.7 ppb (4) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 3.0 ppb (2) N/A N/A 2.5 μg/m3 (10) 10.0
 
Sept. 12, 2019, 2 p.m. N/A 4.3 ppb (4) N/A 5.0 ppb (5) N/A 3.0 ppb (4) 2.0 ppb (2) N/A N/A 4.7 μg/m3 (20) 20.0
 
Sept. 12, 2019, 1 p.m. N/A 1.4 ppb (1) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 2.0 ppb (2) N/A N/A 4.3 μg/m3 (18) 18.0
 
Sept. 12, 2019, noon N/A 1.5 ppb (1) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 3.0 ppb (2) N/A N/A 2.2 μg/m3 (9) 9.0
 
Sept. 12, 2019, 11 a.m. N/A 1.5 ppb (1) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 2.0 ppb (2) N/A N/A 2.8 μg/m3 (12) 12.0
 
Sept. 12, 2019, 10 a.m. N/A 1.8 ppb (2) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 2.0 ppb (2) N/A N/A 3.7 μg/m3 (15) 15.0
 
Sept. 12, 2019, 9 a.m. N/A 2.8 ppb (3) N/A 5.0 ppb (5) N/A 3.0 ppb (4) 1.0 ppb (1) N/A N/A 2.2 μg/m3 (9) 9.0
 
Sept. 12, 2019, 8 a.m. N/A 4.1 ppb (4) N/A 6.0 ppb (6) N/A 3.0 ppb (4) 1.0 ppb (1) N/A N/A 1.3 μg/m3 (5) 6.0
 
Sept. 12, 2019, 7 a.m. N/A 0.9 ppb (1) N/A 5.0 ppb (5) N/A 3.0 ppb (4) 2.0 ppb (2) N/A N/A 1.9 μg/m3 (8) 8.0
 
Sept. 12, 2019, 6 a.m. N/A 1.1 ppb (1) N/A 5.0 ppb (5) N/A 3.0 ppb (4) 3.0 ppb (2) N/A N/A 2.3 μg/m3 (10) 10.0
 
Sept. 12, 2019, 5 a.m. N/A 2.0 ppb (2) N/A 7.0 ppb (6) N/A 3.0 ppb (4) 3.0 ppb (2) N/A N/A 2.3 μg/m3 (10) 10.0
 
Sept. 12, 2019, 4 a.m. N/A 0.7 ppb (1) N/A 7.0 ppb (6) N/A 3.0 ppb (4) 5.0 ppb (4) N/A N/A 1.5 μg/m3 (6) 6.0
 
Sept. 12, 2019, 3 a.m. N/A 0.8 ppb (1) N/A 9.0 ppb (8) N/A 3.0 ppb (4) 9.0 ppb (7) N/A N/A 0.7 μg/m3 (3) 8.0
 
Sept. 12, 2019, 2 a.m. N/A 0.7 ppb (1) N/A 5.0 ppb (5) N/A 3.0 ppb (4) 17.0 ppb (13) N/A N/A 0.9 μg/m3 (4) 13.0
 
Sept. 12, 2019, 1 a.m. N/A 0.5 ppb (0) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 21.0 ppb (16) N/A N/A 1.2 μg/m3 (5) 16.0
 
Sept. 12, 2019, midnight N/A 0.4 ppb (0) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 19.0 ppb (15) N/A N/A 0.5 μg/m3 (2) 15.0
 
Sept. 11, 2019, 11 p.m. N/A 0.3 ppb (0) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 19.0 ppb (15) N/A N/A 0.3 μg/m3 (1) 15.0
 
Sept. 11, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.6 μg/m3 (2) 2.0
 
Sept. 11, 2019, 9 p.m. N/A 1.2 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 17.0 ppb (13) N/A N/A 0.8 μg/m3 (3) 13.0
 
Sept. 11, 2019, 8 p.m. N/A 0.9 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 15.0 ppb (12) N/A N/A 1.0 μg/m3 (4) 12.0
 
Sept. 11, 2019, 7 p.m. N/A 1.6 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 12.0 ppb (9) N/A N/A 1.3 μg/m3 (5) 9.0
 
Sept. 11, 2019, 6 p.m. N/A 4.6 ppb (4) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 7.0 ppb (5) N/A N/A 3.1 μg/m3 (13) 13.0
 
Sept. 11, 2019, 5 p.m. N/A 5.5 ppb (5) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 4.7 μg/m3 (20) 20.0
 
Sept. 11, 2019, 4 p.m. N/A 10.6 ppb (10) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 1.0 ppb (1) N/A N/A 9.1 μg/m3 (38) 38.0
 
Sept. 11, 2019, 3 p.m. N/A 7.5 ppb (7) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 1.0 ppb (1) N/A N/A 6.4 μg/m3 (27) 27.0
 
Sept. 11, 2019, 2 p.m. N/A 5.1 ppb (5) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 0.0 ppb (0) N/A N/A 1.1 μg/m3 (5) 5.0
 
Sept. 11, 2019, 1 p.m. N/A 3.7 ppb (3) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 0.0 ppb (0) N/A N/A 1.6 μg/m3 (7) 7.0
 
Sept. 11, 2019, noon N/A 1.7 ppb (2) N/A 1.0 ppb (1) N/A 3.0 ppb (4) 0.0 ppb (0) N/A N/A 1.1 μg/m3 (5) 5.0
 
Sept. 11, 2019, 11 a.m. N/A 2.6 ppb (2) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 0.0 ppb (0) N/A N/A 0.7 μg/m3 (3) 4.0
 
Sept. 11, 2019, 10 a.m. N/A 3.7 ppb (3) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 0.0 ppb (0) N/A N/A 1.6 μg/m3 (7) 7.0
 
Sept. 11, 2019, 9 a.m. N/A 2.5 ppb (2) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 0.0 ppb (0) N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 11, 2019, 8 a.m. N/A 2.5 ppb (2) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 0.0 ppb (0) N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 11, 2019, 7 a.m. N/A 6.9 ppb (6) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 0.0 ppb (0) N/A N/A 8.3 μg/m3 (35) 35.0
 
Sept. 11, 2019, 6 a.m. N/A 8.8 ppb (8) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 1.0 ppb (1) N/A N/A 8.8 μg/m3 (37) 37.0
 
Sept. 11, 2019, 5 a.m. N/A 8.9 ppb (8) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 0.0 ppb (0) N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 11, 2019, 4 a.m. N/A 5.0 ppb (5) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 1.0 ppb (1) N/A N/A 0.6 μg/m3 (2) 5.0
 
Sept. 11, 2019, 3 a.m. N/A 1.5 ppb (1) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 2.0 ppb (2) N/A N/A 0.8 μg/m3 (3) 4.0
 
Sept. 11, 2019, 2 a.m. N/A 0.7 ppb (1) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 7.0 ppb (5) N/A N/A 0.9 μg/m3 (4) 5.0
 
Sept. 11, 2019, 1 a.m. N/A 0.3 ppb (0) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 13.0 ppb (10) N/A N/A 1.1 μg/m3 (5) 10.0
 
Sept. 11, 2019, midnight N/A 0.7 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 13.0 ppb (10) N/A N/A 1.0 μg/m3 (4) 10.0
 
Sept. 10, 2019, 11 p.m. N/A 1.1 ppb (1) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 12.0 ppb (9) N/A N/A 0.9 μg/m3 (4) 9.0
 
Sept. 10, 2019, 10 p.m. N/A 1.1 ppb (1) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 12.0 ppb (9) N/A N/A 1.4 μg/m3 (6) 9.0
 
Sept. 10, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.1 μg/m3 (5) 5.0
 
Sept. 10, 2019, 8 p.m. N/A 3.5 ppb (3) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 7.0 ppb (5) N/A N/A 0.8 μg/m3 (3) 5.0
 
Sept. 10, 2019, 7 p.m. N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A 3.0 ppb (4) 8.0 ppb (6) N/A N/A 0.4 μg/m3 (2) 6.0