AQSQID: 290990019

Site Name: Arnold

Location: Arnold, MO

Reporting: True, Located: True

Current AQI: 35.0

Arnold MO, US: 38.448633, -90.39854

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
June 11, 2019, midnight N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 15.0 μg/m3 (14) 4.0 μg/m3 (17) 40.0
 
June 10, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 14.0 μg/m3 (13) 1.7 μg/m3 (7) 40.0
 
June 10, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 12.0 μg/m3 (11) 1.7 μg/m3 (7) 38.0
 
June 10, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 13.0 μg/m3 (12) 3.9 μg/m3 (16) 37.0
 
June 10, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 17.0 μg/m3 (15) 3.3 μg/m3 (14) 35.0
 
June 10, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 11.0 μg/m3 (10) 3.9 μg/m3 (16) 35.0
 
June 10, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 13.0 μg/m3 (12) 4.3 μg/m3 (18) 33.0
 
June 10, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 15.0 μg/m3 (14) 4.3 μg/m3 (18) 33.0
 
June 10, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 16.0 μg/m3 (15) 4.1 μg/m3 (17) 33.0
 
June 10, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 18.0 μg/m3 (16) 6.0 μg/m3 (25) 31.0
 
June 10, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 12.0 μg/m3 (11) 2.6 μg/m3 (11) 28.0
 
June 10, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 11.0 μg/m3 (10) 1.6 μg/m3 (7) 25.0
 
June 10, 2019, noon N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 13.0 μg/m3 (12) 0.5 μg/m3 (2) 23.0
 
June 10, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 12.0 μg/m3 (11) -0.3 μg/m3 (0) 23.0
 
June 10, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 13.0 μg/m3 (12) 2.4 μg/m3 (10) 23.0
 
June 10, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 16.0 μg/m3 (15) 4.9 μg/m3 (20) 22.0
 
June 10, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 16.0 μg/m3 (15) 0.7 μg/m3 (3) 24.0
 
June 10, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 13.0 μg/m3 (12) 5.7 μg/m3 (24) 27.0
 
June 10, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 19.0 μg/m3 (17) 8.6 μg/m3 (36) 36.0
 
June 10, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 21.0 μg/m3 (19) 5.6 μg/m3 (23) 32.0
 
June 8, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 14.0 μg/m3 (13) 13.4 μg/m3 (53) 53.0
 
June 8, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 17.0 μg/m3 (15) 11.8 μg/m3 (49) 49.0
 
June 8, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 17.0 μg/m3 (15) 12.3 μg/m3 (51) 51.0
 
June 8, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 17.0 μg/m3 (15) 9.4 μg/m3 (39) 39.0
 
June 8, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 16.0 μg/m3 (15) 11.1 μg/m3 (46) 46.0
 
June 8, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 16.0 μg/m3 (15) 9.3 μg/m3 (39) 39.0
 
June 8, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 13.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
June 8, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 10.0 μg/m3 (9) 8.8 μg/m3 (37) 37.0
 
June 8, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 13.0 μg/m3 (12) 6.1 μg/m3 (25) 27.0
 
June 8, 2019, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 18.0 μg/m3 (16) 7.9 μg/m3 (33) 33.0
 
June 8, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 21.0 μg/m3 (19) 10.3 μg/m3 (43) 43.0
 
June 8, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 19.0 μg/m3 (17) 7.0 μg/m3 (29) 33.0
 
June 8, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 16.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
June 8, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 15.0 μg/m3 (14) 8.9 μg/m3 (37) 37.0
 
June 8, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 14.0 μg/m3 (13) 8.0 μg/m3 (33) 36.0
 
June 8, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 13.0 μg/m3 (12) 10.4 μg/m3 (43) 43.0
 
June 8, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 13.0 μg/m3 (12) 11.5 μg/m3 (48) 48.0
 
June 8, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 18.0 μg/m3 (16) 8.9 μg/m3 (37) 37.0
 
June 8, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 17.0 μg/m3 (15) 11.4 μg/m3 (48) 48.0
 
June 8, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 15.0 μg/m3 (14) 12.1 μg/m3 (50) 50.0
 
June 8, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 10.0 μg/m3 (9) 10.7 μg/m3 (45) 45.0
 
June 8, 2019, midnight N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 14.0 μg/m3 (13) 13.0 μg/m3 (52) 52.0
 
June 7, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 18.0 μg/m3 (16) 10.6 μg/m3 (44) 44.0
 
June 7, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 16.0 μg/m3 (15) 10.3 μg/m3 (43) 43.0
 
June 7, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A 20.0 μg/m3 (18) 10.0 μg/m3 (42) 44.0
 
June 7, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) N/A 17.0 μg/m3 (15) 7.7 μg/m3 (32) 48.0
 
June 7, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) N/A 10.0 μg/m3 (9) 5.6 μg/m3 (23) 48.0
 
June 7, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A 12.0 μg/m3 (11) 8.3 μg/m3 (35) 45.0
 
June 7, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A 8.0 μg/m3 (7) 6.0 μg/m3 (25) 44.0
 
June 7, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 14.0 μg/m3 (13) 8.3 μg/m3 (35) 37.0
 
June 7, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 12.0 μg/m3 (11) 13.4 μg/m3 (53) 53.0
 
June 7, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 24.0 μg/m3 (22) 20.6 μg/m3 (68) 68.0
 
June 7, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 29.0 μg/m3 (26) 22.7 μg/m3 (73) 73.0
 
June 7, 2019, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 28.0 μg/m3 (25) 18.6 μg/m3 (64) 64.0
 
June 7, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 22.0 μg/m3 (20) 12.7 μg/m3 (51) 51.0
 
June 7, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 15.0 μg/m3 (14) 8.9 μg/m3 (37) 37.0
 
June 7, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 11.0 μg/m3 (10) 11.5 μg/m3 (48) 48.0
 
June 7, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 21.0 μg/m3 (19) 19.0 μg/m3 (65) 65.0
 
June 7, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 21.0 μg/m3 (19) 12.2 μg/m3 (50) 50.0
 
June 7, 2019, 6 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) 11.6 μg/m3 (48) 48.0
 
June 7, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 24.0 μg/m3 (22) 12.7 μg/m3 (51) 51.0
 
June 7, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 13.0 μg/m3 (12) 10.9 μg/m3 (45) 45.0
 
June 7, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 16.0 μg/m3 (15) 9.9 μg/m3 (41) 41.0
 
June 7, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 13.0 μg/m3 (12) 8.5 μg/m3 (35) 40.0
 
June 7, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 15.0 μg/m3 (14) 7.0 μg/m3 (29) 42.0
 
June 7, 2019, midnight N/A N/A N/A N/A N/A N/A 62.0 ppb (48) N/A 14.0 μg/m3 (13) 5.6 μg/m3 (23) 48.0
 
June 6, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (52) N/A 14.0 μg/m3 (13) 9.0 μg/m3 (38) 52.0
 
June 6, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 71.0 ppb (55) N/A 15.0 μg/m3 (14) 9.8 μg/m3 (41) 55.0
 
June 6, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (52) N/A 16.0 μg/m3 (15) 6.2 μg/m3 (26) 52.0
 
June 6, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (50) N/A 11.0 μg/m3 (10) 11.2 μg/m3 (47) 50.0
 
June 6, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A 13.0 μg/m3 (12) 5.7 μg/m3 (24) 46.0
 
June 6, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A 13.0 μg/m3 (12) 5.7 μg/m3 (24) 45.0
 
June 6, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 19.0 μg/m3 (17) 8.7 μg/m3 (36) 42.0
 
June 6, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 16.0 μg/m3 (15) 6.3 μg/m3 (26) 40.0
 
June 6, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 18.0 μg/m3 (16) 6.9 μg/m3 (29) 41.0
 
June 6, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 11.0 μg/m3 (10) 5.6 μg/m3 (23) 31.0
 
June 6, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 18.0 μg/m3 (16) 12.0 μg/m3 (50) 50.0
 
June 6, 2019, noon N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 16.0 μg/m3 (15) 4.7 μg/m3 (20) 20.0
 
June 6, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 16.0 μg/m3 (15) 4.7 μg/m3 (20) 20.0
 
June 6, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 22.0 μg/m3 (20) 9.8 μg/m3 (41) 41.0
 
June 6, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 12.0 μg/m3 (11) 5.5 μg/m3 (23) 23.0
 
June 6, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 13.0 μg/m3 (12) 9.5 μg/m3 (40) 40.0
 
June 6, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 13.0 μg/m3 (12) 4.3 μg/m3 (18) 23.0
 
June 6, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 9.0 μg/m3 (8) 4.8 μg/m3 (20) 28.0
 
June 6, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 6.0 μg/m3 (5) 1.4 μg/m3 (6) 36.0
 
June 6, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 7.0 μg/m3 (6) 5.9 μg/m3 (25) 35.0
 
June 6, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 6.0 μg/m3 (5) 2.8 μg/m3 (12) 35.0
 
June 6, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 11.0 μg/m3 (10) 7.1 μg/m3 (30) 39.0
 
June 6, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A 10.0 μg/m3 (9) 7.3 μg/m3 (30) 46.0
 
June 6, 2019, midnight N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 5.5 μg/m3 (23) 44.0
 
June 5, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 12.0 μg/m3 (11) 5.0 μg/m3 (21) 31.0
 
June 5, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 12.0 μg/m3 (11) 5.9 μg/m3 (25) 32.0
 
June 5, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 13.0 μg/m3 (12) 4.9 μg/m3 (20) 30.0
 
June 5, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 11.0 μg/m3 (10) 5.0 μg/m3 (21) 31.0
 
June 5, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 14.0 μg/m3 (13) 6.4 μg/m3 (27) 31.0
 
June 5, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 15.0 μg/m3 (14) 8.8 μg/m3 (37) 37.0
 
June 5, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 15.0 μg/m3 (14) 3.5 μg/m3 (15) 30.0
 
June 5, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 11.0 μg/m3 (10) 3.7 μg/m3 (15) 28.0
 
June 5, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 0.0 μg/m3 (0) 26.0
 
June 5, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 24.0 μg/m3 (22) N/A 25.0
 
June 5, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) -2.3 μg/m3 (0) 20.0
 
June 5, 2019, noon N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 18.0 μg/m3 (16) 0.7 μg/m3 (3) 22.0
 
June 5, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 15.0 μg/m3 (14) 0.3 μg/m3 (1) 22.0
 
June 5, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 15.0 μg/m3 (14) 1.2 μg/m3 (5) 22.0
 
June 5, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 13.0 μg/m3 (12) 1.7 μg/m3 (7) 21.0
 
June 5, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 12.0 μg/m3 (11) -3.1 μg/m3 (0) 22.0
 
June 5, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 7.0 μg/m3 (6) 1.7 μg/m3 (7) 22.0
 
June 5, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 5.0 μg/m3 (5) 0.9 μg/m3 (4) 25.0
 
June 5, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 6.0 μg/m3 (5) 1.7 μg/m3 (7) 25.0
 
June 5, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 6.0 μg/m3 (5) 0.7 μg/m3 (3) 25.0
 
June 5, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 4.0 μg/m3 (4) 1.3 μg/m3 (5) 26.0
 
June 5, 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) 1.8 μg/m3 (8) 28.0
 
June 5, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 3.0 μg/m3 (3) -4.7 μg/m3 (0) 30.0
 
June 5, 2019, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 3.0 μg/m3 (3) 1.7 μg/m3 (7) 30.0
 
June 4, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 5.0 μg/m3 (5) 0.0 μg/m3 (0) 32.0
 
June 4, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 16.0 μg/m3 (15) N/A 32.0
 
June 4, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 13.0 μg/m3 (12) 1.0 μg/m3 (4) 35.0
 
June 4, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 11.0 μg/m3 (10) 0.6 μg/m3 (2) 35.0
 
June 4, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 15.0 μg/m3 (14) 4.2 μg/m3 (18) 35.0
 
June 4, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 14.0 μg/m3 (13) 5.0 μg/m3 (21) 35.0
 
June 4, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 14.0 μg/m3 (13) 4.4 μg/m3 (18) 35.0
 
June 4, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 24.0 μg/m3 (22) 3.1 μg/m3 (13) 40.0
 
June 4, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 23.0 μg/m3 (21) 4.2 μg/m3 (18) 32.0
 
June 4, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 18.0 μg/m3 (16) 5.7 μg/m3 (24) 26.0
 
June 4, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 14.0 μg/m3 (13) 5.1 μg/m3 (21) 22.0
 
June 4, 2019, noon N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 13.0 μg/m3 (12) 4.8 μg/m3 (20) 20.0
 
June 4, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 16.0 μg/m3 (15) 4.1 μg/m3 (17) 18.0
 
June 4, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 21.0 μg/m3 (19) 5.7 μg/m3 (24) 24.0
 
June 4, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 16.0 μg/m3 (15) 5.7 μg/m3 (24) 24.0
 
June 4, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 13.0 μg/m3 (12) 0.9 μg/m3 (4) 28.0
 
June 4, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 11.0 μg/m3 (10) 2.7 μg/m3 (11) 32.0
 
June 4, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 11.0 μg/m3 (10) 3.4 μg/m3 (14) 33.0
 
June 4, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 11.0 μg/m3 (10) 0.3 μg/m3 (1) 33.0
 
June 4, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 12.0 μg/m3 (11) 0.8 μg/m3 (3) 34.0
 
June 4, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 13.0 μg/m3 (12) 2.6 μg/m3 (11) 35.0
 
June 4, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 34.0
 
June 4, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 14.0 μg/m3 (13) 6.4 μg/m3 (27) 35.0
 
June 4, 2019, midnight N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 15.0 μg/m3 (14) 6.9 μg/m3 (29) 38.0
 
June 3, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 14.0 μg/m3 (13) 4.1 μg/m3 (17) 40.0
 
June 3, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 15.0 μg/m3 (14) 3.4 μg/m3 (14) 41.0
 
June 3, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 14.0 μg/m3 (13) 4.3 μg/m3 (18) 41.0
 
June 3, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 14.0 μg/m3 (13) 5.2 μg/m3 (22) 42.0
 
June 3, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 18.0 μg/m3 (16) 8.7 μg/m3 (36) 41.0
 
June 3, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 15.0 μg/m3 (14) 4.9 μg/m3 (20) 42.0
 
June 3, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 15.0 μg/m3 (14) 4.7 μg/m3 (20) 39.0
 
June 3, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 14.0 μg/m3 (13) 7.5 μg/m3 (31) 36.0
 
June 3, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 15.0 μg/m3 (14) 3.1 μg/m3 (13) 32.0
 
June 3, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 15.0 μg/m3 (14) 3.6 μg/m3 (15) 29.0
 
June 3, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 11.0 μg/m3 (10) 3.3 μg/m3 (14) 25.0
 
June 3, 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) 5.9 μg/m3 (25) 25.0
 
June 3, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 14.0 μg/m3 (13) 3.2 μg/m3 (13) 18.0
 
June 3, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 15.0 μg/m3 (14) 5.5 μg/m3 (23) 23.0
 
June 3, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 12.0 μg/m3 (11) 4.1 μg/m3 (17) 26.0
 
June 3, 2019, 8 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) 6.1 μg/m3 (25) 25.0
 
June 3, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 13.0 μg/m3 (12) 9.9 μg/m3 (41) 41.0
 
June 3, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 15.0 μg/m3 (14) 6.2 μg/m3 (26) 29.0
 
June 3, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 9.0 μg/m3 (8) 1.6 μg/m3 (7) 27.0
 
June 3, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 16.0 μg/m3 (15) 3.8 μg/m3 (16) 21.0
 
June 3, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 15.0 μg/m3 (14) 5.6 μg/m3 (23) 25.0
 
June 3, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 14.0 μg/m3 (13) 9.2 μg/m3 (38) 38.0
 
June 3, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 11.0 μg/m3 (10) 14.7 μg/m3 (56) 56.0
 
June 3, 2019, midnight N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 31.0 μg/m3 (28) 32.2 μg/m3 (93) 93.0
 
June 2, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 16.0 μg/m3 (15) 12.1 μg/m3 (50) 50.0
 
June 2, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 17.0 μg/m3 (15) 16.2 μg/m3 (59) 59.0
 
June 2, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 19.0 μg/m3 (17) 15.9 μg/m3 (58) 58.0
 
June 2, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 23.0 μg/m3 (21) 17.8 μg/m3 (62) 62.0
 
June 2, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 19.0 μg/m3 (17) 22.0 μg/m3 (71) 71.0
 
June 2, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 25.0 μg/m3 (23) 19.5 μg/m3 (66) 66.0