AQSQID: 290990019

Site Name: Arnold

Location: Arnold, MO

Reporting: True, Located: True

Current AQI: 19.0

Arnold MO, US: 38.448633, -90.39854

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 20, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 13.0 μg/m3 (12) 1.4 μg/m3 (6) 19.0
 
July 20, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 12.0 μg/m3 (11) 4.9 μg/m3 (20) 20.0
 
July 20, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 11.0 μg/m3 (10) 6.4 μg/m3 (27) 27.0
 
July 20, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 12.0 μg/m3 (11) 9.4 μg/m3 (39) 39.0
 
July 20, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 12.0 μg/m3 (11) 6.5 μg/m3 (27) 27.0
 
July 20, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 12.0 μg/m3 (11) 4.3 μg/m3 (18) 19.0
 
July 20, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 13.0 μg/m3 (12) 3.6 μg/m3 (15) 18.0
 
July 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 13.0 μg/m3 (12) 5.5 μg/m3 (23) 23.0
 
July 20, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 13.0 μg/m3 (12) 7.1 μg/m3 (30) 30.0
 
July 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 14.0 μg/m3 (13) 4.2 μg/m3 (18) 18.0
 
July 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 14.0 μg/m3 (13) 9.6 μg/m3 (40) 40.0
 
July 20, 2019, noon N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 2.0 μg/m3 (2) 5.9 μg/m3 (25) 25.0
 
July 20, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 16.0 μg/m3 (15) 5.3 μg/m3 (22) 22.0
 
July 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 153.0 μg/m3 (99) 8.8 μg/m3 (37) 99.0
 
July 20, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 15.0 μg/m3 (14) 9.6 μg/m3 (40) 40.0
 
July 20, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A -4.0 μg/m3 (0) 8.7 μg/m3 (36) 36.0
 
July 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 4.0 μg/m3 (4) 8.6 μg/m3 (36) 36.0
 
July 20, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 15.0 μg/m3 (14) 6.7 μg/m3 (28) 28.0
 
July 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 15.0 μg/m3 (14) 8.0 μg/m3 (33) 33.0
 
July 20, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 15.0 μg/m3 (14) 8.6 μg/m3 (36) 36.0
 
July 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 14.0 μg/m3 (13) 6.6 μg/m3 (28) 28.0
 
July 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 14.0 μg/m3 (13) 6.4 μg/m3 (27) 27.0
 
July 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
July 20, 2019, midnight N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 12.0 μg/m3 (11) 6.5 μg/m3 (27) 27.0
 
July 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 13.0 μg/m3 (12) 5.9 μg/m3 (25) 25.0
 
July 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 8.1 μg/m3 (34) 34.0
 
July 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 6.4 μg/m3 (27) 27.0
 
July 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 9.0 μg/m3 (38) 38.0
 
July 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 10.8 μg/m3 (45) 45.0
 
July 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 16.0 μg/m3 (15) 2.1 μg/m3 (9) 23.0
 
July 19, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 17.0 μg/m3 (15) 11.0 μg/m3 (46) 46.0
 
July 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 26.0 μg/m3 (24) 10.3 μg/m3 (43) 43.0
 
July 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 15.0 μg/m3 (14) 6.8 μg/m3 (28) 28.0
 
July 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 16.0 μg/m3 (15) 6.8 μg/m3 (28) 28.0
 
July 19, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 17.0 μg/m3 (15) 5.3 μg/m3 (22) 22.0
 
July 19, 2019, noon N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 19.0 μg/m3 (17) 7.0 μg/m3 (29) 29.0
 
July 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 17.0 μg/m3 (15) 5.8 μg/m3 (24) 24.0
 
July 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 16.0 μg/m3 (15) 7.2 μg/m3 (30) 30.0
 
July 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 16.0 μg/m3 (15) 6.3 μg/m3 (26) 26.0
 
July 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 10.0 μg/m3 (9) 9.9 μg/m3 (41) 41.0
 
July 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 7.5 μg/m3 (31) 31.0
 
July 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 18.0 μg/m3 (16) 8.9 μg/m3 (37) 37.0
 
July 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 7.0 μg/m3 (29) 29.0
 
July 19, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 4.6 μg/m3 (19) 19.0
 
July 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 8.6 μg/m3 (36) 36.0
 
July 19, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 17.0 μg/m3 (15) 7.2 μg/m3 (30) 30.0
 
July 19, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 16.0 μg/m3 (15) 8.4 μg/m3 (35) 35.0
 
July 19, 2019, midnight N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 15.0 μg/m3 (14) 5.2 μg/m3 (22) 22.0
 
July 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 16.0 μg/m3 (15) 7.3 μg/m3 (30) 30.0
 
July 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 15.0 μg/m3 (14) 7.5 μg/m3 (31) 31.0
 
July 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 15.0 μg/m3 (14) 4.9 μg/m3 (20) 20.0
 
July 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 15.0 μg/m3 (14) 4.5 μg/m3 (19) 21.0
 
July 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 18.0 μg/m3 (16) 9.2 μg/m3 (38) 38.0
 
July 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 17.0 μg/m3 (15) 5.4 μg/m3 (23) 23.0
 
July 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 18.0 μg/m3 (16) 9.2 μg/m3 (38) 38.0
 
July 18, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 19.0 μg/m3 (17) 8.0 μg/m3 (33) 33.0
 
July 18, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 18.0 μg/m3 (16) 5.4 μg/m3 (23) 23.0
 
July 18, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 20.0 μg/m3 (18) 7.4 μg/m3 (31) 31.0
 
July 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 21.0 μg/m3 (19) 4.5 μg/m3 (19) 19.0
 
July 18, 2019, noon N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 17.0 μg/m3 (15) 3.8 μg/m3 (16) 16.0
 
July 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 15.0 μg/m3 (14) 0.8 μg/m3 (3) 18.0
 
July 18, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 13.0 μg/m3 (12) 2.6 μg/m3 (11) 22.0
 
July 18, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 12.0 μg/m3 (11) 3.0 μg/m3 (12) 25.0
 
July 18, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 10.0 μg/m3 (9) 2.7 μg/m3 (11) 25.0
 
July 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 11.0 μg/m3 (10) 2.2 μg/m3 (9) 25.0
 
July 18, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 11.0 μg/m3 (10) 2.6 μg/m3 (11) 24.0
 
July 18, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 11.0 μg/m3 (10) 4.3 μg/m3 (18) 22.0
 
July 18, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 8.0 μg/m3 (7) 2.1 μg/m3 (9) 22.0
 
July 18, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 5.0 μg/m3 (5) 2.1 μg/m3 (9) 26.0
 
July 18, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 5.0 μg/m3 (5) -4.9 μg/m3 (0) 28.0
 
July 18, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 4.0 μg/m3 (4) -4.2 μg/m3 (0) 29.0
 
July 18, 2019, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 6.0 μg/m3 (5) -1.3 μg/m3 (0) 32.0
 
July 17, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 19.0 μg/m3 (17) 0.0 μg/m3 (0) 33.0
 
July 17, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 12.0 μg/m3 (11) N/A 27.0
 
July 17, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 15.0 μg/m3 (14) N/A 23.0
 
July 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 11.0 μg/m3 (10) 3.7 μg/m3 (15) 22.0
 
July 17, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 9.0 μg/m3 (8) -1.5 μg/m3 (0) 20.0
 
July 17, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 7.0 μg/m3 (6) 4.8 μg/m3 (20) 20.0
 
July 17, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 6.0 μg/m3 (5) 0.4 μg/m3 (2) 19.0
 
July 17, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 9.0 μg/m3 (8) 1.7 μg/m3 (7) 20.0
 
July 17, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 8.0 μg/m3 (7) 0.0 μg/m3 (0) 18.0
 
July 17, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 10.0 μg/m3 (9) N/A 18.0
 
July 17, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 14.0 μg/m3 (13) -0.8 μg/m3 (0) 15.0
 
July 17, 2019, noon N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 17.0 μg/m3 (15) 0.1 μg/m3 (0) 15.0
 
July 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 14.0 μg/m3 (13) 0.2 μg/m3 (1) 13.0
 
July 17, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A 12.0 μg/m3 (11) 1.4 μg/m3 (6) 11.0
 
July 17, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A 12.0 μg/m3 (11) -3.2 μg/m3 (0) 11.0
 
July 17, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 13.0 μg/m3 (12) 0.3 μg/m3 (1) 12.0
 
July 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 12.0 μg/m3 (11) 0.4 μg/m3 (2) 11.0
 
July 17, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 11.0 μg/m3 (10) -3.1 μg/m3 (0) 11.0
 
July 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 13.0 μg/m3 (12) -1.2 μg/m3 (0) 12.0
 
July 17, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 1.0 μg/m3 (1) -4.2 μg/m3 (0) 8.0
 
July 17, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A -0.7 μg/m3 (0) 8.0
 
July 17, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 14.0 μg/m3 (13) 0.3 μg/m3 (1) 13.0
 
July 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 10.0 μg/m3 (9) 2.5 μg/m3 (10) 11.0
 
July 17, 2019, midnight N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 10.0 μg/m3 (9) 0.9 μg/m3 (4) 16.0
 
July 16, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 18.0 μg/m3 (16) 0.0 μg/m3 (0) 16.0
 
July 16, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 13.0 μg/m3 (12) N/A 15.0
 
July 16, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 18.0 μg/m3 (16) N/A 18.0
 
July 16, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
July 16, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A N/A 16.0
 
July 16, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A N/A 16.0
 
July 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A N/A 15.0
 
July 16, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A N/A 12.0
 
July 16, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A N/A 11.0
 
July 16, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A N/A 9.0
 
July 16, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A N/A 8.0
 
July 16, 2019, noon N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A N/A 7.0
 
July 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A N/A 8.0
 
July 16, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A N/A N/A 8.0
 
July 16, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A N/A 10.0
 
July 16, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A N/A 11.0
 
July 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A N/A 11.0
 
July 16, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A N/A 12.0
 
July 16, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 2.4 μg/m3 (10) 12.0
 
July 16, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A -0.4 μg/m3 (0) 13.0
 
July 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 1.7 μg/m3 (7) 14.0
 
July 16, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 2.5 μg/m3 (10) 13.0
 
July 16, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 2.9 μg/m3 (12) 13.0
 
July 16, 2019, midnight N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 0.6 μg/m3 (2) 14.0
 
July 15, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A N/A 15.0
 
July 15, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A -2.5 μg/m3 (0) 15.0
 
July 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A -0.6 μg/m3 (0) 15.0
 
July 15, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 3.2 μg/m3 (13) 15.0
 
July 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 2.6 μg/m3 (11) 16.0
 
July 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 2.2 μg/m3 (9) 17.0
 
July 15, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 3.3 μg/m3 (14) 16.0
 
July 15, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 0.1 μg/m3 (0) 17.0
 
July 15, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 0.9 μg/m3 (4) 17.0
 
July 15, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 4.1 μg/m3 (17) 17.0
 
July 15, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 3.0 μg/m3 (12) 15.0
 
July 15, 2019, noon N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 2.2 μg/m3 (9) 14.0
 
July 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 1.4 μg/m3 (6) 12.0
 
July 15, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 1.5 μg/m3 (6) 15.0
 
July 15, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 0.5 μg/m3 (2) 17.0
 
July 15, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 2.8 μg/m3 (12) 18.0
 
July 15, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 0.5 μg/m3 (2) 21.0
 
July 15, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 1.6 μg/m3 (7) 22.0
 
July 15, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 4.3 μg/m3 (18) 22.0
 
July 15, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 9.0 μg/m3 (8) 1.7 μg/m3 (7) 24.0
 
July 15, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 10.0 μg/m3 (9) 1.4 μg/m3 (6) 25.0
 
July 15, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 11.0 μg/m3 (10) 5.7 μg/m3 (24) 25.0
 
July 15, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 14.0 μg/m3 (13) 4.4 μg/m3 (18) 22.0
 
July 15, 2019, midnight N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 17.0 μg/m3 (15) 4.2 μg/m3 (18) 23.0
 
July 14, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 22.0 μg/m3 (20) 4.2 μg/m3 (18) 24.0
 
July 14, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 19.0 μg/m3 (17) 6.4 μg/m3 (27) 27.0
 
July 14, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 24.0 μg/m3 (22) 8.1 μg/m3 (34) 34.0
 
July 14, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 18.0 μg/m3 (16) 5.8 μg/m3 (24) 25.0
 
July 14, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 17.0 μg/m3 (15) 3.4 μg/m3 (14) 25.0
 
July 14, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 12.0 μg/m3 (11) 6.6 μg/m3 (28) 28.0
 
July 14, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 11.0 μg/m3 (10) 0.6 μg/m3 (2) 25.0
 
July 14, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 11.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
July 14, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 9.0 μg/m3 (8) N/A 25.0
 
July 14, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 9.0 μg/m3 (8) -0.7 μg/m3 (0) 25.0
 
July 14, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 10.0 μg/m3 (9) 1.4 μg/m3 (6) 20.0
 
July 14, 2019, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 16.0 μg/m3 (15) 6.3 μg/m3 (26) 26.0
 
July 14, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 10.0 μg/m3 (42) 42.0
 
July 14, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 8.3 μg/m3 (35) 35.0
 
July 14, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 22.0 μg/m3 (20) 12.4 μg/m3 (51) 51.0
 
July 14, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 19.0 μg/m3 (17) 12.0 μg/m3 (50) 50.0
 
July 14, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 23.0 μg/m3 (21) 11.3 μg/m3 (47) 47.0
 
July 14, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 24.0 μg/m3 (22) 4.9 μg/m3 (20) 25.0
 
July 14, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 22.0 μg/m3 (20) 7.6 μg/m3 (32) 32.0
 
July 14, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 26.0 μg/m3 (24) 9.7 μg/m3 (40) 40.0
 
July 14, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 28.0 μg/m3 (25) 7.0 μg/m3 (29) 31.0
 
July 14, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 22.0 μg/m3 (20) 7.3 μg/m3 (30) 40.0
 
July 14, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A 19.0 μg/m3 (17) 6.2 μg/m3 (26) 45.0
 
July 14, 2019, midnight N/A N/A N/A N/A N/A N/A 64.0 ppb (49) N/A 16.0 μg/m3 (15) 4.8 μg/m3 (20) 49.0