AQSQID: 000100202

Site Name: Prg Plaza 400

Location: Prince George, CC

Reporting: True, Located: True

Current AQI: 12.0

Prince George CC, CA: 53.9147, -122.7419

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 19, 2019, 7 p.m. N/A 3.5 ppb (3) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 15.0 ppb (12) N/A N/A 2.8 μg/m3 (12) 12.0
 
July 19, 2019, 6 p.m. N/A 2.2 ppb (2) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 15.0 ppb (12) N/A N/A 2.8 μg/m3 (12) 12.0
 
July 19, 2019, 5 p.m. N/A 3.7 ppb (3) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 16.0 ppb (12) N/A N/A 3.1 μg/m3 (13) 13.0
 
July 19, 2019, 4 p.m. N/A 4.5 ppb (4) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 14.0 ppb (11) N/A N/A 3.7 μg/m3 (15) 15.0
 
July 19, 2019, 3 p.m. N/A 4.7 ppb (4) N/A 4.0 ppb (4) N/A -1.0 ppb (0) 11.0 ppb (8) N/A N/A 3.5 μg/m3 (15) 15.0
 
July 19, 2019, 2 p.m. N/A 2.2 ppb (2) N/A 5.0 ppb (5) N/A -1.0 ppb (0) 11.0 ppb (8) N/A N/A 2.7 μg/m3 (11) 11.0
 
July 19, 2019, 1 p.m. N/A 0.8 ppb (1) N/A 4.0 ppb (4) N/A -1.0 ppb (0) 12.0 ppb (9) N/A N/A 1.8 μg/m3 (8) 9.0
 
July 19, 2019, noon N/A 0.9 ppb (1) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 16.0 ppb (12) N/A N/A 1.2 μg/m3 (5) 12.0
 
July 19, 2019, 11 a.m. N/A 1.8 ppb (2) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 16.0 ppb (12) N/A N/A 1.2 μg/m3 (5) 12.0
 
July 19, 2019, 10 a.m. N/A 0.3 ppb (0) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 15.0 ppb (12) N/A N/A 1.4 μg/m3 (6) 12.0
 
July 19, 2019, 9 a.m. N/A 0.2 ppb (0) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 14.0 ppb (11) N/A N/A 1.3 μg/m3 (5) 11.0
 
July 19, 2019, 8 a.m. N/A 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 15.0 ppb (12) N/A N/A 0.9 μg/m3 (4) 12.0
 
July 19, 2019, 7 a.m. N/A N/A N/A N/A N/A -1.0 ppb (0) N/A N/A N/A 0.7 μg/m3 (3) 3.0
 
July 19, 2019, 6 a.m. N/A 0.9 ppb (1) N/A 4.0 ppb (4) N/A -1.0 ppb (0) 12.0 ppb (9) N/A N/A 1.0 μg/m3 (4) 9.0
 
July 19, 2019, 5 a.m. N/A 0.8 ppb (1) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 9.0 ppb (7) N/A N/A 1.0 μg/m3 (4) 7.0
 
July 19, 2019, 4 a.m. N/A 0.8 ppb (1) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 11.0 ppb (8) N/A N/A 0.5 μg/m3 (2) 8.0
 
July 19, 2019, 3 a.m. N/A 0.5 ppb (0) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 13.0 ppb (10) N/A N/A 0.4 μg/m3 (2) 10.0
 
July 19, 2019, 2 a.m. N/A 0.9 ppb (1) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 14.0 ppb (11) N/A N/A 0.7 μg/m3 (3) 11.0
 
July 19, 2019, 1 a.m. N/A 1.9 ppb (2) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 16.0 ppb (12) N/A N/A 0.7 μg/m3 (3) 12.0
 
July 19, 2019, midnight N/A 2.6 ppb (2) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 17.0 ppb (13) N/A N/A 0.7 μg/m3 (3) 13.0
 
July 18, 2019, 11 p.m. N/A 2.8 ppb (3) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 19.0 ppb (15) N/A N/A 1.4 μg/m3 (6) 15.0
 
July 18, 2019, 10 p.m. N/A 2.1 ppb (2) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 20.0 ppb (15) N/A N/A 0.7 μg/m3 (3) 15.0
 
July 18, 2019, 9 p.m. N/A 3.0 ppb (3) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 19.0 ppb (15) N/A N/A 0.9 μg/m3 (4) 15.0
 
July 18, 2019, 8 p.m. N/A 3.0 ppb (3) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 20.0 ppb (15) N/A N/A 0.8 μg/m3 (3) 15.0
 
July 18, 2019, 7 p.m. N/A 1.5 ppb (1) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 21.0 ppb (16) N/A N/A 0.5 μg/m3 (2) 16.0
 
July 18, 2019, 6 p.m. N/A 2.3 ppb (2) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 21.0 ppb (16) N/A N/A 0.7 μg/m3 (3) 16.0
 
July 18, 2019, 5 p.m. N/A 3.3 ppb (3) N/A 4.0 ppb (4) N/A -1.0 ppb (0) 20.0 ppb (15) N/A N/A 1.1 μg/m3 (5) 15.0
 
July 18, 2019, 4 p.m. N/A 2.3 ppb (2) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 21.0 ppb (16) N/A N/A 1.3 μg/m3 (5) 16.0
 
July 18, 2019, 3 p.m. N/A 1.8 ppb (2) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 23.0 ppb (18) N/A N/A 0.3 μg/m3 (1) 18.0
 
July 18, 2019, 2 p.m. N/A 2.4 ppb (2) N/A 5.0 ppb (5) N/A -1.0 ppb (0) 18.0 ppb (14) N/A N/A 0.4 μg/m3 (2) 14.0
 
July 18, 2019, 1 p.m. N/A 1.6 ppb (1) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 18.0 ppb (14) N/A N/A 0.4 μg/m3 (2) 14.0
 
July 18, 2019, noon N/A 1.1 ppb (1) N/A 5.0 ppb (5) N/A -1.0 ppb (0) 15.0 ppb (12) N/A N/A 0.5 μg/m3 (2) 12.0
 
July 18, 2019, 11 a.m. N/A 0.3 ppb (0) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 17.0 ppb (13) N/A N/A 0.4 μg/m3 (2) 13.0
 
July 18, 2019, 10 a.m. N/A 0.3 ppb (0) N/A 5.0 ppb (5) N/A -1.0 ppb (0) 16.0 ppb (12) N/A N/A 0.3 μg/m3 (1) 12.0
 
July 18, 2019, 9 a.m. N/A 0.3 ppb (0) N/A 6.0 ppb (6) N/A -1.0 ppb (0) 18.0 ppb (14) N/A N/A 0.3 μg/m3 (1) 14.0
 
July 18, 2019, 8 a.m. N/A 0.3 ppb (0) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 24.0 ppb (18) N/A N/A 0.2 μg/m3 (1) 18.0
 
July 18, 2019, 7 a.m. N/A 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (17) N/A N/A 0.1 μg/m3 (0) 17.0
 
July 18, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 0.3 μg/m3 (1) 1.0
 
July 18, 2019, 5 a.m. N/A 0.7 ppb (1) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 14.0 ppb (11) N/A N/A 0.6 μg/m3 (2) 11.0
 
July 18, 2019, 4 a.m. N/A 0.7 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 0.3 μg/m3 (1) 15.0
 
July 18, 2019, 3 a.m. N/A 1.1 ppb (1) N/A 4.0 ppb (4) N/A -1.0 ppb (0) 24.0 ppb (18) N/A N/A 0.0 μg/m3 (0) 18.0
 
July 18, 2019, 2 a.m. N/A 0.8 ppb (1) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 26.0 ppb (20) N/A N/A 0.0 μg/m3 (0) 20.0
 
July 18, 2019, 1 a.m. N/A 1.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 24.0 ppb (18) N/A N/A 0.0 μg/m3 (0) 18.0
 
July 18, 2019, midnight N/A 2.1 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 24.0 ppb (18) N/A N/A 0.1 μg/m3 (0) 18.0
 
July 17, 2019, 11 p.m. N/A 1.7 ppb (2) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 27.0 ppb (21) N/A N/A 0.9 μg/m3 (4) 21.0
 
July 17, 2019, 10 p.m. N/A 2.0 ppb (2) N/A 4.0 ppb (4) N/A -1.0 ppb (0) 23.0 ppb (18) N/A N/A 0.5 μg/m3 (2) 18.0
 
July 17, 2019, 9 p.m. N/A 0.9 ppb (1) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 27.0 ppb (21) N/A N/A 0.2 μg/m3 (1) 21.0
 
July 17, 2019, 8 p.m. N/A 1.3 ppb (1) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 27.0 ppb (21) N/A N/A 0.1 μg/m3 (0) 21.0
 
July 17, 2019, 7 p.m. N/A 1.4 ppb (1) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 27.0 ppb (21) N/A N/A 0.2 μg/m3 (1) 21.0
 
July 17, 2019, 6 p.m. N/A 2.3 ppb (2) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 25.0 ppb (19) N/A N/A N/A 19.0
 
July 17, 2019, 5 p.m. N/A 1.5 ppb (1) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 22.0 ppb (17) N/A N/A 11.9 μg/m3 (50) 50.0
 
July 17, 2019, 4 p.m. N/A 1.9 ppb (2) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 15.0 ppb (12) N/A N/A 12.1 μg/m3 (50) 50.0
 
July 17, 2019, 3 p.m. N/A 2.7 ppb (3) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 14.0 ppb (11) N/A N/A 12.1 μg/m3 (50) 50.0
 
July 17, 2019, 2 p.m. N/A 4.2 ppb (4) N/A 4.0 ppb (4) N/A -1.0 ppb (0) 12.0 ppb (9) N/A N/A 12.1 μg/m3 (50) 50.0
 
July 17, 2019, 1 p.m. N/A 1.1 ppb (1) N/A 6.0 ppb (6) N/A -1.0 ppb (0) 9.0 ppb (7) N/A N/A 12.5 μg/m3 (51) 51.0
 
July 17, 2019, noon N/A 1.0 ppb (1) N/A 8.0 ppb (7) N/A -1.0 ppb (0) 5.0 ppb (4) N/A N/A 12.8 μg/m3 (52) 52.0
 
July 17, 2019, 11 a.m. N/A 0.9 ppb (1) N/A 5.0 ppb (5) N/A -1.0 ppb (0) 8.0 ppb (6) N/A N/A 12.2 μg/m3 (50) 50.0
 
July 17, 2019, 10 a.m. N/A 0.3 ppb (0) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 15.0 ppb (12) N/A N/A 12.0 μg/m3 (50) 50.0
 
July 17, 2019, 9 a.m. N/A 0.1 ppb (0) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 17.0 ppb (13) N/A N/A 12.0 μg/m3 (50) 50.0
 
July 17, 2019, 8 a.m. N/A 0.3 ppb (0) N/A 6.0 ppb (6) N/A -1.0 ppb (0) 13.0 ppb (10) N/A N/A 12.2 μg/m3 (50) 50.0
 
July 17, 2019, 7 a.m. N/A 0.3 ppb (0) N/A 6.0 ppb (6) N/A -1.0 ppb (0) 15.0 ppb (12) N/A N/A 12.1 μg/m3 (50) 50.0
 
July 17, 2019, 6 a.m. N/A 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 16.0 ppb (12) N/A N/A 12.3 μg/m3 (51) 51.0
 
July 17, 2019, 5 a.m. N/A N/A N/A N/A N/A -1.0 ppb (0) N/A N/A N/A 12.3 μg/m3 (51) 51.0
 
July 17, 2019, 4 a.m. N/A 1.2 ppb (1) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 28.0 ppb (22) N/A N/A 12.0 μg/m3 (50) 50.0
 
July 17, 2019, 3 a.m. N/A 0.5 ppb (0) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 29.0 ppb (22) N/A N/A 12.2 μg/m3 (50) 50.0
 
July 17, 2019, 2 a.m. N/A 1.7 ppb (2) N/A 4.0 ppb (4) N/A -1.0 ppb (0) 26.0 ppb (20) N/A N/A 11.8 μg/m3 (49) 49.0
 
July 17, 2019, 1 a.m. N/A 2.1 ppb (2) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 32.0 ppb (25) N/A N/A 12.0 μg/m3 (50) 50.0
 
July 17, 2019, midnight N/A 1.9 ppb (2) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 31.0 ppb (24) N/A N/A 12.0 μg/m3 (50) 50.0
 
July 16, 2019, 11 p.m. N/A 3.6 ppb (3) N/A 4.0 ppb (4) N/A -1.0 ppb (0) 30.0 ppb (23) N/A N/A N/A 23.0
 
July 16, 2019, 10 p.m. N/A 3.2 ppb (3) N/A 4.0 ppb (4) N/A -1.0 ppb (0) 31.0 ppb (24) N/A N/A N/A 24.0
 
July 16, 2019, 9 p.m. N/A 2.2 ppb (2) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 28.0 ppb (22) N/A N/A N/A 22.0
 
July 16, 2019, 8 p.m. N/A 1.7 ppb (2) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 26.0 ppb (20) N/A N/A N/A 20.0
 
July 16, 2019, 7 p.m. N/A 2.4 ppb (2) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 24.0 ppb (18) N/A N/A N/A 18.0
 
July 16, 2019, 6 p.m. N/A 16.7 ppb (15) N/A 9.0 ppb (8) N/A -1.0 ppb (0) 25.0 ppb (19) N/A N/A N/A 19.0
 
July 16, 2019, 5 p.m. N/A 2.3 ppb (2) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 24.0 ppb (18) N/A N/A N/A 18.0
 
July 16, 2019, 4 p.m. N/A 6.2 ppb (6) N/A 7.0 ppb (6) N/A -1.0 ppb (0) 18.0 ppb (14) N/A N/A N/A 14.0
 
July 16, 2019, 3 p.m. N/A 6.0 ppb (6) N/A 7.0 ppb (6) N/A -1.0 ppb (0) 12.0 ppb (9) N/A N/A N/A 9.0
 
July 16, 2019, 2 p.m. N/A 4.8 ppb (4) N/A 6.0 ppb (6) N/A -1.0 ppb (0) 11.0 ppb (8) N/A N/A N/A 8.0
 
July 16, 2019, 1 p.m. N/A 6.9 ppb (6) N/A 11.0 ppb (10) N/A -1.0 ppb (0) 6.0 ppb (5) N/A N/A N/A 10.0
 
July 16, 2019, noon N/A 4.5 ppb (4) N/A 10.0 ppb (9) N/A -1.0 ppb (0) 3.0 ppb (2) N/A N/A N/A 9.0
 
July 16, 2019, 11 a.m. N/A 5.5 ppb (5) N/A 12.0 ppb (11) N/A -1.0 ppb (0) 1.0 ppb (1) N/A N/A N/A 11.0
 
July 16, 2019, 10 a.m. N/A 8.0 ppb (7) N/A 13.0 ppb (12) N/A -1.0 ppb (0) 1.0 ppb (1) N/A N/A N/A 12.0
 
July 16, 2019, 9 a.m. N/A 7.6 ppb (7) N/A 14.0 ppb (13) N/A -1.0 ppb (0) 2.0 ppb (2) N/A N/A N/A 13.0
 
July 16, 2019, 8 a.m. N/A 4.0 ppb (4) N/A 12.0 ppb (11) N/A -1.0 ppb (0) 6.0 ppb (5) N/A N/A N/A 11.0
 
July 16, 2019, 7 a.m. N/A 5.6 ppb (5) N/A 16.0 ppb (15) N/A -1.0 ppb (0) 5.0 ppb (4) N/A N/A N/A 15.0
 
July 16, 2019, 6 a.m. N/A 2.3 ppb (2) N/A 10.0 ppb (9) N/A -1.0 ppb (0) 14.0 ppb (11) N/A N/A N/A 11.0
 
July 16, 2019, 5 a.m. N/A 2.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 22.0 ppb (17) N/A N/A N/A 17.0
 
July 16, 2019, 4 a.m. N/A N/A N/A N/A N/A -1.0 ppb (0) N/A N/A N/A N/A N/A
July 16, 2019, 3 a.m. N/A 0.8 ppb (1) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 29.0 ppb (22) N/A N/A N/A 22.0
 
July 16, 2019, 2 a.m. N/A 0.7 ppb (1) N/A 1.0 ppb (1) N/A -2.0 ppb (0) 32.0 ppb (25) N/A N/A N/A 25.0
 
July 16, 2019, 1 a.m. N/A 0.7 ppb (1) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 31.0 ppb (24) N/A N/A N/A 24.0
 
July 16, 2019, midnight N/A 1.0 ppb (1) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 31.0 ppb (24) N/A N/A N/A 24.0
 
July 15, 2019, 11 p.m. N/A 1.9 ppb (2) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 29.0 ppb (22) N/A N/A N/A 22.0
 
July 15, 2019, 10 p.m. N/A 1.7 ppb (2) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 30.0 ppb (23) N/A N/A N/A 23.0
 
July 15, 2019, 9 p.m. N/A 1.5 ppb (1) N/A 2.0 ppb (2) N/A -2.0 ppb (0) 28.0 ppb (22) N/A N/A N/A 22.0
 
July 15, 2019, 8 p.m. N/A 1.3 ppb (1) N/A 1.0 ppb (1) N/A -2.0 ppb (0) 28.0 ppb (22) N/A N/A N/A 22.0
 
July 15, 2019, 7 p.m. N/A 1.7 ppb (2) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 26.0 ppb (20) N/A N/A N/A 20.0
 
July 15, 2019, 6 p.m. N/A 2.1 ppb (2) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 23.0 ppb (18) N/A N/A N/A 18.0
 
July 15, 2019, 5 p.m. N/A 2.1 ppb (2) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 21.0 ppb (16) N/A N/A N/A 16.0
 
July 15, 2019, 4 p.m. N/A 2.5 ppb (2) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 20.0 ppb (15) N/A N/A N/A 15.0
 
July 15, 2019, 3 p.m. N/A 5.2 ppb (5) N/A 4.0 ppb (4) N/A -1.0 ppb (0) 14.0 ppb (11) N/A N/A N/A 11.0
 
July 15, 2019, 2 p.m. N/A 6.0 ppb (6) N/A 5.0 ppb (5) N/A -1.0 ppb (0) 8.0 ppb (6) N/A N/A N/A 6.0
 
July 15, 2019, 1 p.m. N/A 5.5 ppb (5) N/A 6.0 ppb (6) N/A -1.0 ppb (0) 6.0 ppb (5) N/A N/A N/A 6.0
 
July 15, 2019, noon N/A 1.2 ppb (1) N/A 6.0 ppb (6) N/A -1.0 ppb (0) 7.0 ppb (5) N/A N/A N/A 6.0
 
July 15, 2019, 11 a.m. N/A 0.4 ppb (0) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 12.0 ppb (9) N/A N/A N/A 9.0
 
July 15, 2019, 10 a.m. N/A 0.4 ppb (0) N/A 6.0 ppb (6) N/A -1.0 ppb (0) 10.0 ppb (8) N/A N/A N/A 8.0
 
July 15, 2019, 9 a.m. N/A 0.3 ppb (0) N/A 6.0 ppb (6) N/A -1.0 ppb (0) 13.0 ppb (10) N/A N/A N/A 10.0
 
July 15, 2019, 8 a.m. N/A 0.2 ppb (0) N/A 4.0 ppb (4) N/A -1.0 ppb (0) 17.0 ppb (13) N/A N/A N/A 13.0
 
July 15, 2019, 7 a.m. N/A 0.3 ppb (0) N/A 7.0 ppb (6) N/A -1.0 ppb (0) 12.0 ppb (9) N/A N/A N/A 9.0
 
July 15, 2019, 6 a.m. N/A 0.4 ppb (0) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 17.0 ppb (13) N/A N/A N/A 13.0
 
July 15, 2019, 5 a.m. N/A 0.2 ppb (0) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 19.0 ppb (15) N/A N/A N/A 15.0
 
July 15, 2019, 4 a.m. N/A 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 23.0 ppb (18) N/A N/A N/A 18.0
 
July 15, 2019, 3 a.m. N/A N/A N/A N/A N/A -1.0 ppb (0) N/A N/A N/A N/A N/A
July 15, 2019, 2 a.m. N/A 0.3 ppb (0) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 24.0 ppb (18) N/A N/A N/A 18.0
 
July 15, 2019, 1 a.m. N/A 0.6 ppb (1) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 25.0 ppb (19) N/A N/A N/A 19.0
 
July 15, 2019, midnight N/A 0.6 ppb (1) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 27.0 ppb (21) N/A N/A N/A 21.0
 
July 14, 2019, 11 p.m. N/A 0.6 ppb (1) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 27.0 ppb (21) N/A N/A N/A 21.0
 
July 14, 2019, 10 p.m. N/A 0.4 ppb (0) N/A 0.0 ppb (0) N/A -1.0 ppb (0) 23.0 ppb (18) N/A N/A N/A 18.0
 
July 14, 2019, 9 p.m. N/A 0.7 ppb (1) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 19.0 ppb (15) N/A N/A N/A 15.0
 
July 14, 2019, 8 p.m. N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 20.0 ppb (15) N/A N/A N/A 15.0
 
July 14, 2019, 7 p.m. N/A 0.4 ppb (0) N/A 0.0 ppb (0) N/A -1.0 ppb (0) 18.0 ppb (14) N/A N/A N/A 14.0
 
July 14, 2019, 6 p.m. N/A 0.6 ppb (1) N/A 0.0 ppb (0) N/A -1.0 ppb (0) 16.0 ppb (12) N/A N/A N/A 12.0
 
July 14, 2019, 5 p.m. N/A 0.6 ppb (1) N/A 0.0 ppb (0) N/A -1.0 ppb (0) 17.0 ppb (13) N/A N/A N/A 13.0
 
July 14, 2019, 4 p.m. N/A 0.9 ppb (1) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 17.0 ppb (13) N/A N/A N/A 13.0
 
July 14, 2019, 3 p.m. N/A 0.5 ppb (0) N/A 0.0 ppb (0) N/A -1.0 ppb (0) 17.0 ppb (13) N/A N/A N/A 13.0
 
July 14, 2019, 2 p.m. N/A 0.4 ppb (0) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 18.0 ppb (14) N/A N/A N/A 14.0
 
July 14, 2019, 1 p.m. N/A 0.2 ppb (0) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 20.0 ppb (15) N/A N/A N/A 15.0
 
July 14, 2019, noon N/A 0.2 ppb (0) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 22.0 ppb (17) N/A N/A N/A 17.0
 
July 14, 2019, 11 a.m. N/A 0.2 ppb (0) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 23.0 ppb (18) N/A N/A N/A 18.0
 
July 14, 2019, 10 a.m. N/A 0.2 ppb (0) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 25.0 ppb (19) N/A N/A N/A 19.0
 
July 14, 2019, 9 a.m. N/A 0.3 ppb (0) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 25.0 ppb (19) N/A N/A N/A 19.0
 
July 14, 2019, 8 a.m. N/A 0.2 ppb (0) N/A 6.0 ppb (6) N/A -1.0 ppb (0) 16.0 ppb (12) N/A N/A N/A 12.0
 
July 14, 2019, 7 a.m. N/A 1.4 ppb (1) N/A 13.0 ppb (12) N/A -1.0 ppb (0) 9.0 ppb (7) N/A N/A N/A 12.0
 
July 14, 2019, 6 a.m. N/A 0.3 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A N/A 15.0
 
July 14, 2019, 5 a.m. N/A 0.4 ppb (0) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 23.0 ppb (18) N/A N/A N/A 18.0
 
July 14, 2019, 4 a.m. N/A 0.6 ppb (1) N/A 4.0 ppb (4) N/A -1.0 ppb (0) 25.0 ppb (19) N/A N/A N/A 19.0
 
July 14, 2019, 3 a.m. N/A 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) N/A N/A N/A 22.0
 
July 14, 2019, 2 a.m. N/A N/A N/A N/A N/A -1.0 ppb (0) N/A N/A N/A N/A N/A
July 14, 2019, 1 a.m. N/A 0.9 ppb (1) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 32.0 ppb (25) N/A N/A N/A 25.0
 
July 14, 2019, midnight N/A 0.9 ppb (1) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 29.0 ppb (22) N/A N/A N/A 22.0
 
July 13, 2019, 11 p.m. N/A 0.9 ppb (1) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 27.0 ppb (21) N/A N/A N/A 21.0
 
July 13, 2019, 10 p.m. N/A 0.9 ppb (1) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 32.0 ppb (25) N/A N/A N/A 25.0
 
July 13, 2019, 9 p.m. N/A 0.8 ppb (1) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 30.0 ppb (23) N/A N/A N/A 23.0
 
July 13, 2019, 8 p.m. N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 33.0 ppb (25) N/A N/A N/A 25.0
 
July 13, 2019, 7 p.m. N/A 0.6 ppb (1) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 29.0 ppb (22) N/A N/A N/A 22.0
 
July 13, 2019, 6 p.m. N/A 2.1 ppb (2) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 21.0 ppb (16) N/A N/A N/A 16.0
 
July 13, 2019, 5 p.m. N/A 1.6 ppb (1) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 19.0 ppb (15) N/A N/A N/A 15.0
 
July 13, 2019, 4 p.m. N/A 1.3 ppb (1) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 18.0 ppb (14) N/A N/A N/A 14.0
 
July 13, 2019, 3 p.m. N/A 4.2 ppb (4) N/A 5.0 ppb (5) N/A -1.0 ppb (0) 14.0 ppb (11) N/A N/A N/A 11.0
 
July 13, 2019, 2 p.m. N/A 6.3 ppb (6) N/A 6.0 ppb (6) N/A -1.0 ppb (0) 8.0 ppb (6) N/A N/A N/A 6.0
 
July 13, 2019, 1 p.m. N/A 11.3 ppb (10) N/A 9.0 ppb (8) N/A -1.0 ppb (0) 3.0 ppb (2) N/A N/A 9.8 μg/m3 (41) 41.0
 
July 13, 2019, noon N/A 8.9 ppb (8) N/A 8.0 ppb (7) N/A -1.0 ppb (0) 1.0 ppb (1) N/A N/A 10.8 μg/m3 (45) 45.0
 
July 13, 2019, 11 a.m. N/A 2.6 ppb (2) N/A 7.0 ppb (6) N/A -1.0 ppb (0) 2.0 ppb (2) N/A N/A 10.0 μg/m3 (42) 42.0
 
July 13, 2019, 10 a.m. N/A 0.7 ppb (1) N/A 6.0 ppb (6) N/A -1.0 ppb (0) 6.0 ppb (5) N/A N/A 8.5 μg/m3 (35) 35.0
 
July 13, 2019, 9 a.m. N/A 1.9 ppb (2) N/A 9.0 ppb (8) N/A -1.0 ppb (0) 7.0 ppb (5) N/A N/A 7.5 μg/m3 (31) 31.0
 
July 13, 2019, 8 a.m. N/A 0.4 ppb (0) N/A 5.0 ppb (5) N/A -1.0 ppb (0) 13.0 ppb (10) N/A N/A 5.2 μg/m3 (22) 22.0
 
July 13, 2019, 7 a.m. N/A 0.2 ppb (0) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 19.0 ppb (15) N/A N/A 3.6 μg/m3 (15) 15.0
 
July 13, 2019, 6 a.m. N/A 0.5 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 6.1 μg/m3 (25) 25.0
 
July 13, 2019, 5 a.m. N/A 0.2 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 10.7 μg/m3 (45) 45.0
 
July 13, 2019, 4 a.m. N/A 0.8 ppb (1) N/A 4.0 ppb (4) N/A -1.0 ppb (0) 20.0 ppb (15) N/A N/A 6.5 μg/m3 (27) 27.0
 
July 13, 2019, 3 a.m. N/A 0.8 ppb (1) N/A 3.0 ppb (3) N/A -1.0 ppb (0) 23.0 ppb (18) N/A N/A 5.7 μg/m3 (24) 24.0
 
July 13, 2019, 2 a.m. N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 26.0 ppb (20) N/A N/A 4.0 μg/m3 (17) 20.0
 
July 13, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.7 μg/m3 (20) 20.0
 
July 13, 2019, midnight N/A 1.3 ppb (1) N/A 2.0 ppb (2) N/A -1.0 ppb (0) 30.0 ppb (23) N/A N/A 3.6 μg/m3 (15) 23.0
 
July 12, 2019, 11 p.m. N/A 1.9 ppb (2) N/A 2.0 ppb (2) N/A -2.0 ppb (0) 29.0 ppb (22) N/A N/A 3.8 μg/m3 (16) 22.0
 
July 12, 2019, 10 p.m. N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A -1.0 ppb (0) 29.0 ppb (22) N/A N/A 3.1 μg/m3 (13) 22.0
 
July 12, 2019, 9 p.m. N/A 1.9 ppb (2) N/A 2.0 ppb (2) N/A -2.0 ppb (0) 26.0 ppb (20) N/A N/A 2.9 μg/m3 (12) 20.0
 
July 12, 2019, 8 p.m. N/A 2.7 ppb (3) N/A 4.0 ppb (4) N/A -1.0 ppb (0) 21.0 ppb (16) N/A N/A 3.2 μg/m3 (13) 16.0