AQSQID: 000091101

Site Name: Elk Island

Location: Fort Saskatchewan (Range Rd 202A), CC

Reporting: True, Located: True

Current AQI: 43.0

Fort Saskatchewan (Range Rd 202A) CC, CA: 53.6825, -112.8686

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 9.5 μg/m3 (40) 43.0
 
March 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 9.8 μg/m3 (41) 41.0
 
March 19, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 9.7 μg/m3 (40) 40.0
 
March 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 8.5 μg/m3 (35) 35.0
 
March 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 7.3 μg/m3 (30) 32.0
 
March 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 5.6 μg/m3 (23) 28.0
 
March 19, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 5.5 μg/m3 (23) 25.0
 
March 19, 2019, noon N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 5.2 μg/m3 (22) 30.0
 
March 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 5.1 μg/m3 (21) 30.0
 
March 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 5.3 μg/m3 (22) 35.0
 
March 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.5 μg/m3 (23) 23.0
 
March 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 5.5 μg/m3 (23) 40.0
 
March 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 5.1 μg/m3 (21) 42.0
 
March 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 4.4 μg/m3 (18) 42.0
 
March 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 4.9 μg/m3 (20) 32.0
 
March 19, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 5.9 μg/m3 (25) 34.0
 
March 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 5.7 μg/m3 (24) 35.0
 
March 19, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 6.6 μg/m3 (28) 40.0
 
March 19, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 6.9 μg/m3 (29) 42.0
 
March 19, 2019, midnight N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 7.6 μg/m3 (32) 45.0
 
March 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 8.0 μg/m3 (33) 45.0
 
March 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 8.0 μg/m3 (33) 45.0
 
March 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A 7.5 μg/m3 (31) 46.0
 
March 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 8.1 μg/m3 (34) 44.0
 
March 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 7.7 μg/m3 (32) 42.0
 
March 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 7.7 μg/m3 (32) 38.0
 
March 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 6.2 μg/m3 (26) 36.0
 
March 18, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 5.6 μg/m3 (23) 35.0
 
March 18, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 5.0 μg/m3 (21) 35.0
 
March 18, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 4.3 μg/m3 (18) 33.0
 
March 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 4.3 μg/m3 (18) 36.0
 
March 18, 2019, noon N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 4.5 μg/m3 (19) 35.0
 
March 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 5.0 μg/m3 (21) 35.0
 
March 18, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 5.4 μg/m3 (23) 35.0
 
March 18, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.5 μg/m3 (23) 23.0
 
March 18, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 6.1 μg/m3 (25) 35.0
 
March 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 7.1 μg/m3 (30) 32.0
 
March 18, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 6.0 μg/m3 (25) 32.0
 
March 18, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 5.4 μg/m3 (23) 32.0
 
March 18, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 5.6 μg/m3 (23) 35.0
 
March 18, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 5.6 μg/m3 (23) 40.0
 
March 18, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 5.9 μg/m3 (25) 42.0
 
March 18, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 7.1 μg/m3 (30) 43.0
 
March 18, 2019, midnight N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 8.0 μg/m3 (33) 45.0
 
March 17, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A 9.0 μg/m3 (38) 46.0
 
March 17, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 8.7 μg/m3 (36) 45.0
 
March 17, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 9.2 μg/m3 (38) 45.0
 
March 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 9.1 μg/m3 (38) 44.0
 
March 17, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 10.2 μg/m3 (42) 42.0
 
March 17, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 10.1 μg/m3 (42) 42.0
 
March 17, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 7.9 μg/m3 (33) 35.0
 
March 17, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 7.8 μg/m3 (32) 35.0
 
March 17, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 9.6 μg/m3 (40) 40.0
 
March 17, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 9.2 μg/m3 (38) 38.0
 
March 17, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 17, 2019, noon N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 8.3 μg/m3 (35) 36.0
 
March 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 7.5 μg/m3 (31) 37.0
 
March 17, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 6.7 μg/m3 (28) 38.0
 
March 17, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.9 μg/m3 (25) 25.0
 
March 17, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 6.6 μg/m3 (28) 35.0
 
March 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 7.4 μg/m3 (31) 33.0
 
March 17, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 6.7 μg/m3 (28) 34.0
 
March 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 6.7 μg/m3 (28) 35.0
 
March 17, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 7.9 μg/m3 (33) 38.0
 
March 17, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 7.0 μg/m3 (29) 40.0
 
March 17, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 8.5 μg/m3 (35) 43.0
 
March 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A 8.2 μg/m3 (34) 46.0
 
March 17, 2019, midnight N/A N/A N/A N/A N/A N/A 64.0 ppb (49) N/A N/A 9.3 μg/m3 (39) 49.0
 
March 16, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (52) N/A N/A 9.4 μg/m3 (39) 52.0
 
March 16, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (53) N/A N/A 9.2 μg/m3 (38) 53.0
 
March 16, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 8.6 μg/m3 (36) 43.0
 
March 16, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 7.7 μg/m3 (32) 42.0
 
March 16, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 7.8 μg/m3 (32) 40.0
 
March 16, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 6.7 μg/m3 (28) 37.0
 
March 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 6.6 μg/m3 (28) 35.0
 
March 16, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 5.5 μg/m3 (23) 31.0
 
March 16, 2019, 3 p.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
 
March 16, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 3.6 μg/m3 (15) 22.0
 
March 16, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 2.9 μg/m3 (12) 22.0
 
March 16, 2019, noon N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 3.2 μg/m3 (13) 23.0
 
March 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 3.3 μg/m3 (14) 24.0
 
March 16, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 3.0 μg/m3 (12) 25.0
 
March 16, 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
 
March 16, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.0 μg/m3 (12) 30.0
 
March 16, 2019, 7 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
 
March 16, 2019, 6 a.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
 
March 16, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 3.3 μg/m3 (14) 35.0
 
March 16, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 3.6 μg/m3 (15) 37.0
 
March 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 3.8 μg/m3 (16) 38.0
 
March 16, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 4.4 μg/m3 (18) 40.0
 
March 16, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 5.2 μg/m3 (22) 41.0
 
March 16, 2019, midnight N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 5.9 μg/m3 (25) 42.0
 
March 15, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 6.2 μg/m3 (26) 42.0
 
March 15, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 5.5 μg/m3 (23) 43.0
 
March 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 5.7 μg/m3 (24) 43.0
 
March 15, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 6.1 μg/m3 (25) 41.0
 
March 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 5.6 μg/m3 (23) 41.0
 
March 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 5.4 μg/m3 (23) 39.0
 
March 15, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 4.8 μg/m3 (20) 38.0
 
March 15, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 4.8 μg/m3 (20) 38.0
 
March 15, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 5.7 μg/m3 (24) 35.0
 
March 15, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 5.8 μg/m3 (24) 37.0
 
March 15, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 6.9 μg/m3 (29) 32.0
 
March 15, 2019, noon N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 6.9 μg/m3 (29) 32.0
 
March 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 8.1 μg/m3 (34) 34.0
 
March 15, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 8.5 μg/m3 (35) 35.0
 
March 15, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.7 μg/m3 (28) 28.0
 
March 15, 2019, 8 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
 
March 15, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 5.4 μg/m3 (23) 37.0
 
March 15, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 5.0 μg/m3 (21) 37.0
 
March 15, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 4.7 μg/m3 (20) 37.0
 
March 15, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 5.6 μg/m3 (23) 37.0
 
March 15, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 5.6 μg/m3 (23) 38.0
 
March 15, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 5.4 μg/m3 (23) 41.0
 
March 15, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 5.3 μg/m3 (22) 40.0
 
March 15, 2019, midnight N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 6.3 μg/m3 (26) 38.0
 
March 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 7.8 μg/m3 (32) 37.0
 
March 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 7.9 μg/m3 (33) 36.0
 
March 14, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 8.2 μg/m3 (34) 35.0
 
March 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 8.6 μg/m3 (36) 36.0
 
March 14, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 7.4 μg/m3 (31) 33.0
 
March 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 6.5 μg/m3 (27) 31.0
 
March 14, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 5.6 μg/m3 (23) 28.0
 
March 14, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 4.9 μg/m3 (20) 26.0
 
March 14, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 4.3 μg/m3 (18) 24.0
 
March 14, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 2.9 μg/m3 (12) 24.0
 
March 14, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 2.3 μg/m3 (10) 27.0
 
March 14, 2019, noon N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 2.3 μg/m3 (10) 30.0
 
March 14, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 2.3 μg/m3 (10) 31.0
 
March 14, 2019, 10 a.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
 
March 14, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.4 μg/m3 (14) 14.0
 
March 14, 2019, 8 a.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
 
March 14, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 4.3 μg/m3 (18) 31.0
 
March 14, 2019, 6 a.m. 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
 
March 14, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 2.9 μg/m3 (12) 37.0
 
March 14, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 2.7 μg/m3 (11) 38.0
 
March 14, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 2.5 μg/m3 (10) 35.0
 
March 14, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 2.6 μg/m3 (11) 35.0
 
March 14, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 3.2 μg/m3 (13) 39.0
 
March 14, 2019, midnight N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 3.5 μg/m3 (15) 39.0
 
March 13, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 3.9 μg/m3 (16) 38.0
 
March 13, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 5.5 μg/m3 (23) 37.0
 
March 13, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 5.6 μg/m3 (23) 37.0
 
March 13, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 5.6 μg/m3 (23) 38.0
 
March 13, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 5.5 μg/m3 (23) 36.0
 
March 13, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 5.5 μg/m3 (23) 33.0
 
March 13, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 6.3 μg/m3 (26) 32.0
 
March 13, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 8.1 μg/m3 (34) 34.0
 
March 13, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 8.7 μg/m3 (36) 36.0
 
March 13, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 13.5 μg/m3 (53) 53.0
 
March 13, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 5.7 μg/m3 (24) 32.0
 
March 13, 2019, noon N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 5.4 μg/m3 (23) 33.0
 
March 13, 2019, 11 a.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
 
March 13, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 2.2 μg/m3 (9) 33.0
 
March 13, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.5 μg/m3 (10) 10.0
 
March 13, 2019, 8 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
 
March 13, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 3.5 μg/m3 (15) 31.0
 
March 13, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 3.3 μg/m3 (14) 31.0
 
March 13, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 3.4 μg/m3 (14) 32.0
 
March 13, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 3.5 μg/m3 (15) 32.0
 
March 13, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 4.3 μg/m3 (18) 32.0
 
March 13, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 3.9 μg/m3 (16) 33.0
 
March 13, 2019, 1 a.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
 
March 13, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
March 12, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 5.1 μg/m3 (21) 38.0
 
March 12, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.5 μg/m3 (23) 23.0
 
March 12, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.5 μg/m3 (23) 23.0
 
March 12, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.4 μg/m3 (23) 23.0