AQSQID: 000091801

Site Name: Fort Chipewyan

Location: Fort Chipewyan, CC

Reporting: True, Located: True

Current AQI: 36.0

Fort Chipewyan CC, CA: 58.7083, -111.1764

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 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 6.4 μg/m3 (27) 36.0
 
March 18, 2019, 10 p.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
 
March 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 6.1 μg/m3 (25) 40.0
 
March 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 3.2 μg/m3 (13) 38.0
 
March 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 3.3 μg/m3 (14) 38.0
 
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 3.5 μg/m3 (15) 38.0
 
March 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 3.7 μg/m3 (15) 38.0
 
March 18, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 3.7 μg/m3 (15) 37.0
 
March 18, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 3.5 μg/m3 (15) 35.0
 
March 18, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 3.4 μg/m3 (14) 35.0
 
March 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 3.0 μg/m3 (12) 32.0
 
March 18, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.8 μg/m3 (12) 12.0
 
March 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 2.7 μg/m3 (11) 36.0
 
March 18, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 3.0 μg/m3 (12) 36.0
 
March 18, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 2.8 μg/m3 (12) 36.0
 
March 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 2.6 μg/m3 (11) 36.0
 
March 18, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 2.4 μg/m3 (10) 37.0
 
March 18, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 2.5 μg/m3 (10) 37.0
 
March 18, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 2.6 μg/m3 (11) 38.0
 
March 18, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 3.2 μg/m3 (13) 37.0
 
March 18, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 3.2 μg/m3 (13) 37.0
 
March 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 2.9 μg/m3 (12) 37.0
 
March 18, 2019, midnight 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 17, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 2.8 μg/m3 (12) 38.0
 
March 17, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 2.8 μg/m3 (12) 38.0
 
March 17, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 3.1 μg/m3 (13) 38.0
 
March 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 3.3 μg/m3 (14) 39.0
 
March 17, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 3.4 μg/m3 (14) 39.0
 
March 17, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 3.5 μg/m3 (15) 38.0
 
March 17, 2019, 5 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
 
March 17, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 7.3 μg/m3 (30) 30.0
 
March 17, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 7.3 μg/m3 (30) 30.0
 
March 17, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 7.5 μg/m3 (31) 31.0
 
March 17, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 6.9 μg/m3 (29) 29.0
 
March 17, 2019, noon N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 4.2 μg/m3 (18) 25.0
 
March 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.2 μg/m3 (18) 18.0
 
March 17, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.8 μg/m3 (16) 30.0
 
March 17, 2019, 9 a.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
 
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 1.7 μg/m3 (7) 35.0
 
March 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 1.8 μg/m3 (8) 35.0
 
March 17, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 1.6 μg/m3 (7) 35.0
 
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 1.3 μg/m3 (5) 35.0
 
March 17, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 1.9 μg/m3 (8) 35.0
 
March 17, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 6.9 μg/m3 (29) 34.0
 
March 17, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 4.2 μg/m3 (18) 35.0
 
March 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 7.1 μg/m3 (30) 37.0
 
March 17, 2019, midnight 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 16, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 1.7 μg/m3 (7) 37.0
 
March 16, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 1.6 μg/m3 (7) 36.0
 
March 16, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 1.8 μg/m3 (8) 36.0
 
March 16, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 1.8 μg/m3 (8) 35.0
 
March 16, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 1.7 μg/m3 (7) 35.0
 
March 16, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 1.8 μg/m3 (8) 34.0
 
March 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 2.0 μg/m3 (8) 33.0
 
March 16, 2019, 4 p.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
 
March 16, 2019, 3 p.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 16, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.2 μg/m3 (9) 9.0
 
March 16, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.7 μg/m3 (7) 7.0
 
March 16, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
March 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 2.1 μg/m3 (9) 31.0
 
March 16, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 2.3 μg/m3 (10) 35.0
 
March 16, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 2.8 μg/m3 (12) 34.0
 
March 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 2.9 μg/m3 (12) 35.0
 
March 16, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 3.1 μg/m3 (13) 35.0
 
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 3.9 μg/m3 (16) 35.0
 
March 16, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 3.1 μg/m3 (13) 35.0
 
March 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 2.8 μg/m3 (12) 36.0
 
March 16, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 2.8 μg/m3 (12) 36.0
 
March 16, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 3.0 μg/m3 (12) 36.0
 
March 16, 2019, midnight N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 2.0 μg/m3 (8) 37.0
 
March 15, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 1.8 μg/m3 (8) 37.0
 
March 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 2.2 μg/m3 (9) 37.0
 
March 15, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 2.2 μg/m3 (9) 35.0
 
March 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 2.3 μg/m3 (10) 34.0
 
March 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 2.1 μg/m3 (9) 34.0
 
March 15, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 1.8 μg/m3 (8) 34.0
 
March 15, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 1.8 μg/m3 (8) 34.0
 
March 15, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.8 μg/m3 (8) 8.0
 
March 15, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 1.6 μg/m3 (7) 34.0
 
March 15, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.6 μg/m3 (7) 7.0
 
March 15, 2019, noon N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 1.6 μg/m3 (7) 35.0
 
March 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 1.6 μg/m3 (7) 35.0
 
March 15, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.7 μg/m3 (7) 7.0
 
March 15, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.6 μg/m3 (7) 7.0
 
March 15, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.7 μg/m3 (7) 7.0
 
March 15, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.7 μg/m3 (7) 7.0
 
March 15, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.8 μg/m3 (8) 8.0
 
March 15, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
March 15, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.2 μg/m3 (9) 9.0
 
March 15, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 2.4 μg/m3 (10) 35.0
 
March 15, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 2.9 μg/m3 (12) 35.0
 
March 15, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 3.1 μg/m3 (13) 34.0
 
March 15, 2019, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 2.5 μg/m3 (10) 33.0
 
March 14, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 1.9 μg/m3 (8) 33.0
 
March 14, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 1.9 μg/m3 (8) 32.0
 
March 14, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 1.9 μg/m3 (8) 32.0
 
March 14, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 2.0 μg/m3 (8) 32.0
 
March 14, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 2.1 μg/m3 (9) 31.0
 
March 14, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A N/A 29.0
 
March 14, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.3 μg/m3 (14) 14.0
 
March 14, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 2.4 μg/m3 (10) 28.0
 
March 14, 2019, noon 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, 11 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 2.3 μg/m3 (10) 28.0
 
March 14, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 2.1 μg/m3 (9) 28.0
 
March 14, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 2.1 μg/m3 (9) 28.0
 
March 14, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 2.3 μg/m3 (10) 28.0
 
March 14, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 4.2 μg/m3 (18) 29.0
 
March 14, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 1.9 μg/m3 (8) 30.0
 
March 14, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 5.9 μg/m3 (25) 31.0
 
March 14, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 3.6 μg/m3 (15) 31.0
 
March 14, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 2.5 μg/m3 (10) 31.0
 
March 14, 2019, 2 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 14, 2019, 1 a.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
 
March 14, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.6 μg/m3 (7) 7.0
 
March 13, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 1.2 μg/m3 (5) 32.0
 
March 13, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 1.2 μg/m3 (5) 32.0
 
March 13, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 1.3 μg/m3 (5) 32.0
 
March 13, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 1.3 μg/m3 (5) 32.0
 
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 1.1 μg/m3 (5) 32.0
 
March 13, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 1.3 μg/m3 (5) 32.0
 
March 13, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 1.5 μg/m3 (6) 32.0
 
March 13, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 1.7 μg/m3 (7) 31.0
 
March 13, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.2 μg/m3 (5) 5.0
 
March 13, 2019, noon N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 1.3 μg/m3 (5) 32.0
 
March 13, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 1.2 μg/m3 (5) 32.0
 
March 13, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 1.4 μg/m3 (6) 32.0
 
March 13, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 1.4 μg/m3 (6) 32.0
 
March 13, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 1.6 μg/m3 (7) 32.0
 
March 13, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 1.9 μg/m3 (8) 33.0
 
March 13, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 1.2 μg/m3 (5) 34.0
 
March 13, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 1.3 μg/m3 (5) 34.0
 
March 13, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 3.1 μg/m3 (13) 34.0
 
March 13, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 3.5 μg/m3 (15) 34.0
 
March 13, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 0.8 μg/m3 (3) 35.0
 
March 13, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 0.9 μg/m3 (4) 35.0
 
March 13, 2019, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 2.0 μg/m3 (8) 35.0
 
March 12, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 1.5 μg/m3 (6) 35.0
 
March 12, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 1.0 μg/m3 (4) 35.0
 
March 12, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 0.8 μg/m3 (3) 35.0
 
March 12, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 0.8 μg/m3 (3) 35.0
 
March 12, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 1.0 μg/m3 (4) 35.0
 
March 12, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 0.9 μg/m3 (4) 35.0
 
March 12, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 2.5 μg/m3 (10) 34.0
 
March 12, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 4.2 μg/m3 (18) 33.0
 
March 12, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 1.2 μg/m3 (5) 32.0
 
March 12, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 1.7 μg/m3 (7) 33.0
 
March 12, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 1.4 μg/m3 (6) 33.0
 
March 12, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.5 μg/m3 (6) 6.0
 
March 12, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 2.4 μg/m3 (10) 32.0
 
March 12, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 4.9 μg/m3 (20) 34.0
 
March 12, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 1.4 μg/m3 (6) 35.0
 
March 12, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 1.2 μg/m3 (5) 35.0
 
March 12, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 2.0 μg/m3 (8) 35.0
 
March 12, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 1.9 μg/m3 (8) 35.0
 
March 12, 2019, 4 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
 
March 12, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 2.8 μg/m3 (12) 35.0
 
March 12, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 1.5 μg/m3 (6) 36.0
 
March 12, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 1.1 μg/m3 (5) 37.0
 
March 12, 2019, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 1.1 μg/m3 (5) 38.0
 
March 11, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 1.2 μg/m3 (5) 38.0
 
March 11, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 1.3 μg/m3 (5) 38.0
 
March 11, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.3 μg/m3 (5) 5.0
 
March 11, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.5 μg/m3 (6) 6.0
 
March 11, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.6 μg/m3 (7) 7.0
 
March 11, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
March 11, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.2 μg/m3 (9) 9.0
 
March 11, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.1 μg/m3 (9) 9.0
 
March 11, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.8 μg/m3 (8) 8.0