AQSQID: 000090601

Site Name: Fort Saskatchewan

Location: Fort Saskatchewan, CC

Reporting: True, Located: True

Current AQI: 23.0

Fort Saskatchewan CC, CA: 53.6989, -113.2233

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 21, 2019, noon N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 5.4 μg/m3 (23) 23.0
 
May 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 5.5 μg/m3 (23) 23.0
 
May 21, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 5.3 μg/m3 (22) 22.0
 
May 21, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.1 μg/m3 (21) 21.0
 
May 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 4.9 μg/m3 (20) 20.0
 
May 21, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 4.6 μg/m3 (19) 19.0
 
May 21, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 4.4 μg/m3 (18) 22.0
 
May 21, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 4.0 μg/m3 (17) 22.0
 
May 21, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 3.6 μg/m3 (15) 23.0
 
May 21, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.3 μg/m3 (14) 30.0
 
May 21, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 3.2 μg/m3 (13) 32.0
 
May 21, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 3.0 μg/m3 (12) 35.0
 
May 21, 2019, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 3.0 μg/m3 (12) 35.0
 
May 20, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 3.3 μg/m3 (14) 35.0
 
May 20, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 3.4 μg/m3 (14) 35.0
 
May 20, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 3.6 μg/m3 (15) 35.0
 
May 20, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 3.8 μg/m3 (16) 35.0
 
May 20, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 3.2 μg/m3 (13) 35.0
 
May 20, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 3.2 μg/m3 (13) 34.0
 
May 20, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 3.2 μg/m3 (13) 33.0
 
May 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 3.1 μg/m3 (13) 32.0
 
May 20, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 2.8 μg/m3 (12) 29.0
 
May 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 2.9 μg/m3 (12) 23.0
 
May 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 2.8 μg/m3 (12) 21.0
 
May 20, 2019, noon N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 2.9 μg/m3 (12) 19.0
 
May 20, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 3.0 μg/m3 (12) 21.0
 
May 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 2.8 μg/m3 (12) 22.0
 
May 20, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.1 μg/m3 (13) 13.0
 
May 20, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 3.3 μg/m3 (14) 28.0
 
May 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 4.1 μg/m3 (17) 26.0
 
May 20, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 3.9 μg/m3 (16) 28.0
 
May 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 3.8 μg/m3 (16) 28.0
 
May 20, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 4.8 μg/m3 (20) 28.0
 
May 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 4.1 μg/m3 (17) 31.0
 
May 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 3.5 μg/m3 (15) 36.0
 
May 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 3.4 μg/m3 (14) 37.0
 
May 20, 2019, midnight N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 3.5 μg/m3 (15) 37.0
 
May 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 4.3 μg/m3 (18) 38.0
 
May 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 4.0 μg/m3 (17) 38.0
 
May 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 3.9 μg/m3 (16) 37.0
 
May 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 3.9 μg/m3 (16) 36.0
 
May 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 4.1 μg/m3 (17) 36.0
 
May 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 3.0 μg/m3 (12) 34.0
 
May 19, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 2.3 μg/m3 (10) 32.0
 
May 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 2.4 μg/m3 (10) 29.0
 
May 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 2.0 μg/m3 (8) 28.0
 
May 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 2.6 μg/m3 (11) 25.0
 
May 19, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 3.8 μg/m3 (16) 18.0
 
May 19, 2019, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 3.4 μg/m3 (14) 16.0
 
May 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 2.8 μg/m3 (12) 18.0
 
May 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 2.9 μg/m3 (12) 18.0
 
May 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.6 μg/m3 (11) 11.0
 
May 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 2.5 μg/m3 (10) 20.0
 
May 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 3.5 μg/m3 (15) 22.0
 
May 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 3.9 μg/m3 (16) 21.0
 
May 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 6.3 μg/m3 (26) 26.0
 
May 19, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 9.4 μg/m3 (39) 39.0
 
May 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 5.0 μg/m3 (21) 28.0
 
May 19, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 4.8 μg/m3 (20) 32.0
 
May 19, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 5.8 μg/m3 (24) 34.0
 
May 19, 2019, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 7.5 μg/m3 (31) 35.0
 
May 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 4.5 μg/m3 (19) 36.0
 
May 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 4.8 μg/m3 (20) 36.0
 
May 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 4.8 μg/m3 (20) 35.0
 
May 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 4.4 μg/m3 (18) 35.0
 
May 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 5.1 μg/m3 (21) 35.0
 
May 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 5.7 μg/m3 (24) 34.0
 
May 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 7.7 μg/m3 (32) 32.0
 
May 18, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 8.1 μg/m3 (34) 34.0
 
May 18, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 9.8 μg/m3 (41) 41.0
 
May 18, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 13.2 μg/m3 (53) 53.0
 
May 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 13.1 μg/m3 (52) 52.0
 
May 18, 2019, noon N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 9.7 μg/m3 (40) 40.0
 
May 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 8.7 μg/m3 (36) 36.0
 
May 18, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 8.6 μg/m3 (36) 36.0
 
May 18, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.3 μg/m3 (30) 30.0
 
May 18, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 5.9 μg/m3 (25) 25.0
 
May 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 5.5 μg/m3 (23) 26.0
 
May 18, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 6.4 μg/m3 (27) 28.0
 
May 18, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 7.2 μg/m3 (30) 30.0
 
May 18, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 7.7 μg/m3 (32) 32.0
 
May 18, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 7.6 μg/m3 (32) 34.0
 
May 18, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 6.4 μg/m3 (27) 35.0
 
May 18, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 6.1 μg/m3 (25) 37.0
 
May 18, 2019, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 6.4 μg/m3 (27) 38.0
 
May 17, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 7.2 μg/m3 (30) 37.0
 
May 17, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 5.4 μg/m3 (23) 38.0
 
May 17, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 4.2 μg/m3 (18) 37.0
 
May 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 3.6 μg/m3 (15) 35.0
 
May 17, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 6.3 μg/m3 (26) 35.0
 
May 17, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 6.1 μg/m3 (25) 34.0
 
May 17, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 6.8 μg/m3 (28) 32.0
 
May 17, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 5.2 μg/m3 (22) 31.0
 
May 17, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 5.4 μg/m3 (23) 28.0
 
May 17, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 4.7 μg/m3 (20) 27.0
 
May 17, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 4.2 μg/m3 (18) 26.0
 
May 17, 2019, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 3.4 μg/m3 (14) 25.0
 
May 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 2.8 μg/m3 (12) 26.0
 
May 17, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 2.5 μg/m3 (10) 28.0
 
May 17, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.4 μg/m3 (10) 10.0
 
May 17, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 2.8 μg/m3 (12) 28.0
 
May 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 3.3 μg/m3 (14) 29.0
 
May 17, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 3.1 μg/m3 (13) 29.0
 
May 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 3.1 μg/m3 (13) 28.0
 
May 17, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 3.3 μg/m3 (14) 28.0
 
May 17, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 3.3 μg/m3 (14) 29.0
 
May 17, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 3.0 μg/m3 (12) 31.0
 
May 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 2.9 μg/m3 (12) 33.0
 
May 17, 2019, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 3.3 μg/m3 (14) 33.0
 
May 16, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 3.7 μg/m3 (15) 34.0
 
May 16, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 3.4 μg/m3 (14) 33.0
 
May 16, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 3.5 μg/m3 (15) 33.0
 
May 16, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 3.4 μg/m3 (14) 32.0
 
May 16, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 3.7 μg/m3 (15) 31.0
 
May 16, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 3.8 μg/m3 (16) 28.0
 
May 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 5.3 μg/m3 (22) 25.0
 
May 16, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 6.0 μg/m3 (25) 25.0
 
May 16, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 5.1 μg/m3 (21) 21.0
 
May 16, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 4.6 μg/m3 (19) 19.0
 
May 16, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 5.8 μg/m3 (24) 24.0
 
May 16, 2019, noon N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 7.6 μg/m3 (32) 32.0
 
May 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 9.8 μg/m3 (41) 41.0
 
May 16, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 10.6 μg/m3 (44) 44.0
 
May 16, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
May 16, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 8.8 μg/m3 (37) 37.0
 
May 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 7.1 μg/m3 (30) 30.0
 
May 16, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 5.5 μg/m3 (23) 23.0
 
May 16, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 6.3 μg/m3 (26) 26.0
 
May 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 6.2 μg/m3 (26) 26.0
 
May 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 5.2 μg/m3 (22) 22.0
 
May 16, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 4.4 μg/m3 (18) 22.0
 
May 16, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 4.3 μg/m3 (18) 22.0
 
May 16, 2019, midnight N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 5.2 μg/m3 (22) 22.0
 
May 15, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 5.0 μg/m3 (21) 21.0
 
May 15, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 4.5 μg/m3 (19) 22.0
 
May 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 4.7 μg/m3 (20) 22.0
 
May 15, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 5.7 μg/m3 (24) 24.0
 
May 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 5.1 μg/m3 (21) 22.0
 
May 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 4.8 μg/m3 (20) 20.0
 
May 15, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 6.2 μg/m3 (26) 26.0
 
May 15, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 7.8 μg/m3 (32) 32.0
 
May 15, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 5.9 μg/m3 (25) 25.0
 
May 15, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 5.5 μg/m3 (23) 23.0
 
May 15, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 11.7 μg/m3 (49) 49.0
 
May 15, 2019, noon N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 16.4 μg/m3 (59) 59.0
 
May 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 10.1 μg/m3 (42) 42.0
 
May 15, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 9.3 μg/m3 (39) 39.0
 
May 15, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.5 μg/m3 (40) 40.0
 
May 15, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 9.3 μg/m3 (39) 39.0
 
May 15, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 8.7 μg/m3 (36) 36.0
 
May 15, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 5.8 μg/m3 (24) 25.0
 
May 15, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 5.1 μg/m3 (21) 26.0
 
May 15, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 5.9 μg/m3 (25) 27.0
 
May 15, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 6.8 μg/m3 (28) 28.0
 
May 15, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 6.5 μg/m3 (27) 34.0
 
May 15, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 6.5 μg/m3 (27) 35.0
 
May 15, 2019, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 6.5 μg/m3 (27) 36.0
 
May 14, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 6.4 μg/m3 (27) 37.0
 
May 14, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 7.0 μg/m3 (29) 36.0
 
May 14, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 6.4 μg/m3 (27) 35.0
 
May 14, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 5.3 μg/m3 (22) 33.0
 
May 14, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 4.1 μg/m3 (17) 32.0
 
May 14, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 3.2 μg/m3 (13) 31.0
 
May 14, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 2.8 μg/m3 (12) 31.0
 
May 14, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 4.1 μg/m3 (17) 27.0
 
May 14, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 5.8 μg/m3 (24) 24.0
 
May 14, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 7.5 μg/m3 (31) 31.0
 
May 14, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 7.4 μg/m3 (31) 31.0