AQSQID: 000090601

Site Name: Fort Saskatchewan

Location: Fort Saskatchewan, CC

Reporting: True, Located: True

Current AQI: 14.0

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
March 25, 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 25, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 2.4 μg/m3 (10) 27.0
 
March 25, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 7.6 μg/m3 (32) 32.0
 
March 25, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 12.3 μg/m3 (51) 51.0
 
March 25, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 3.6 μg/m3 (15) 25.0
 
March 25, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 3.8 μg/m3 (16) 25.0
 
March 25, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 4.6 μg/m3 (19) 25.0
 
March 25, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 5.0 μg/m3 (21) 26.0
 
March 25, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 5.1 μg/m3 (21) 27.0
 
March 25, 2019, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 5.7 μg/m3 (24) 27.0
 
March 24, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 6.4 μg/m3 (27) 27.0
 
March 24, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 5.7 μg/m3 (24) 25.0
 
March 24, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 5.4 μg/m3 (23) 25.0
 
March 24, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 5.1 μg/m3 (21) 25.0
 
March 24, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 4.6 μg/m3 (19) 25.0
 
March 24, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 5.6 μg/m3 (23) 24.0
 
March 24, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 5.6 μg/m3 (23) 23.0
 
March 24, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 3.6 μg/m3 (15) 22.0
 
March 24, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 2.0 μg/m3 (8) 21.0
 
March 24, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 2.1 μg/m3 (9) 17.0
 
March 24, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 1.8 μg/m3 (8) 15.0
 
March 24, 2019, noon N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 1.4 μg/m3 (6) 20.0
 
March 24, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 1.6 μg/m3 (7) 21.0
 
March 24, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 1.5 μg/m3 (6) 21.0
 
March 24, 2019, 9 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 24, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 1.3 μg/m3 (5) 28.0
 
March 24, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 0.5 μg/m3 (2) 30.0
 
March 24, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 0.0 μg/m3 (0) 29.0
 
March 24, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 0.3 μg/m3 (1) 30.0
 
March 24, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 1.1 μg/m3 (5) 29.0
 
March 24, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 1.7 μg/m3 (7) 29.0
 
March 24, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 2.0 μg/m3 (8) 30.0
 
March 24, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 1.3 μg/m3 (5) 33.0
 
March 24, 2019, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 1.1 μg/m3 (5) 35.0
 
March 23, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 1.7 μg/m3 (7) 35.0
 
March 23, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 2.6 μg/m3 (11) 37.0
 
March 23, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 3.6 μg/m3 (15) 38.0
 
March 23, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 4.5 μg/m3 (19) 39.0
 
March 23, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 10.2 μg/m3 (42) 42.0
 
March 23, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 16.8 μg/m3 (60) 60.0
 
March 23, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 39.4 μg/m3 (110) 110.0
 
March 23, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 61.9 μg/m3 (153) 153.0
 
March 23, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 54.1 μg/m3 (146) 146.0
 
March 23, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 76.9 μg/m3 (161) 161.0
 
March 23, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 72.4 μg/m3 (159) 159.0
 
March 23, 2019, noon N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 62.9 μg/m3 (154) 154.0
 
March 23, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 76.2 μg/m3 (161) 161.0
 
March 23, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 82.2 μg/m3 (164) 164.0
 
March 23, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 68.9 μg/m3 (157) 157.0
 
March 23, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A N/A 56.4 μg/m3 (150) 150.0
 
March 23, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 61.5 μg/m3 (153) 153.0
 
March 23, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 66.8 μg/m3 (156) 156.0
 
March 23, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A N/A 61.1 μg/m3 (153) 153.0
 
March 23, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A N/A 62.5 μg/m3 (154) 154.0
 
March 23, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 65.3 μg/m3 (155) 155.0
 
March 23, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 57.3 μg/m3 (151) 151.0
 
March 23, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 46.5 μg/m3 (128) 128.0
 
March 23, 2019, midnight N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 35.2 μg/m3 (99) 99.0
 
March 22, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 33.6 μg/m3 (96) 96.0
 
March 22, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 31.6 μg/m3 (92) 92.0
 
March 22, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 30.5 μg/m3 (89) 89.0
 
March 22, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 32.1 μg/m3 (93) 93.0
 
March 22, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 30.0 μg/m3 (88) 88.0
 
March 22, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 23.4 μg/m3 (74) 74.0
 
March 22, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 18.6 μg/m3 (64) 64.0
 
March 22, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 16.1 μg/m3 (59) 59.0
 
March 22, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 22.0 μg/m3 (71) 71.0
 
March 22, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 21.2 μg/m3 (70) 70.0
 
March 22, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 24.2 μg/m3 (76) 76.0
 
March 22, 2019, noon N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 23.3 μg/m3 (74) 74.0
 
March 22, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A N/A 20.7 μg/m3 (69) 69.0
 
March 22, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 18.4 μg/m3 (64) 64.0
 
March 22, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 20.1 μg/m3 (67) 67.0
 
March 22, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 20.5 μg/m3 (68) 68.0
 
March 22, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 20.2 μg/m3 (67) 67.0
 
March 22, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 21.1 μg/m3 (69) 69.0
 
March 22, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 21.7 μg/m3 (71) 71.0
 
March 22, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 20.9 μg/m3 (69) 69.0
 
March 22, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 19.2 μg/m3 (65) 65.0
 
March 22, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 19.5 μg/m3 (66) 66.0
 
March 22, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 24.7 μg/m3 (77) 77.0
 
March 22, 2019, midnight N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 29.7 μg/m3 (88) 88.0
 
March 21, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A 30.4 μg/m3 (89) 89.0
 
March 21, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 39.2 μg/m3 (109) 109.0
 
March 21, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 52.0 μg/m3 (141) 141.0
 
March 21, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 58.6 μg/m3 (152) 152.0
 
March 21, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 51.6 μg/m3 (140) 140.0
 
March 21, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 56.9 μg/m3 (151) 151.0
 
March 21, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 58.0 μg/m3 (151) 151.0
 
March 21, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 68.0 μg/m3 (157) 157.0
 
March 21, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 81.1 μg/m3 (163) 163.0
 
March 21, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 84.8 μg/m3 (165) 165.0
 
March 21, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 48.0 μg/m3 (131) 131.0
 
March 21, 2019, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 41.2 μg/m3 (114) 114.0
 
March 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 33.9 μg/m3 (97) 97.0
 
March 21, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 31.7 μg/m3 (92) 92.0
 
March 21, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 32.6 μg/m3 (94) 94.0
 
March 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A N/A 34.5 μg/m3 (98) 98.0
 
March 21, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 36.3 μg/m3 (102) 102.0
 
March 21, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 43.7 μg/m3 (120) 120.0
 
March 21, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A N/A 34.5 μg/m3 (98) 98.0
 
March 21, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 36.3 μg/m3 (102) 102.0
 
March 21, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 27.7 μg/m3 (83) 83.0
 
March 21, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 30.0 μg/m3 (88) 88.0
 
March 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 22.3 μg/m3 (72) 72.0
 
March 21, 2019, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 19.2 μg/m3 (65) 65.0
 
March 20, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 19.1 μg/m3 (65) 65.0
 
March 20, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 34.6 μg/m3 (98) 98.0
 
March 20, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 26.2 μg/m3 (80) 80.0
 
March 20, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 22.2 μg/m3 (72) 72.0
 
March 20, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 25.7 μg/m3 (79) 79.0
 
March 20, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 25.9 μg/m3 (80) 80.0
 
March 20, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 32.4 μg/m3 (93) 93.0
 
March 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 32.4 μg/m3 (93) 93.0
 
March 20, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 31.0 μg/m3 (90) 90.0
 
March 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 26.5 μg/m3 (81) 81.0
 
March 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 21.5 μg/m3 (70) 70.0
 
March 20, 2019, noon N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 19.9 μg/m3 (67) 67.0
 
March 20, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A N/A 16.1 μg/m3 (59) 59.0
 
March 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A N/A 14.4 μg/m3 (55) 55.0
 
March 20, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.5 μg/m3 (48) 48.0
 
March 20, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A N/A 12.6 μg/m3 (51) 51.0
 
March 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 12.3 μg/m3 (51) 51.0
 
March 20, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 13.8 μg/m3 (54) 54.0
 
March 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 13.4 μg/m3 (53) 53.0
 
March 20, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 9.4 μg/m3 (39) 39.0
 
March 20, 2019, 3 a.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
 
March 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 19.4 μg/m3 (66) 66.0
 
March 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 5.4 μg/m3 (23) 44.0
 
March 20, 2019, midnight N/A N/A N/A N/A N/A N/A 64.0 ppb (49) N/A N/A 5.7 μg/m3 (24) 49.0
 
March 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) N/A N/A 6.2 μg/m3 (26) 48.0
 
March 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) N/A N/A 6.2 μg/m3 (26) 48.0
 
March 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A 3.5 μg/m3 (15) 46.0
 
March 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 3.4 μg/m3 (14) 42.0
 
March 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 2.2 μg/m3 (9) 40.0
 
March 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 2.6 μg/m3 (11) 37.0
 
March 19, 2019, 5 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
 
March 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 6.6 μg/m3 (28) 28.0
 
March 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 9.8 μg/m3 (41) 41.0
 
March 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A N/A 9.5 μg/m3 (40) 40.0
 
March 19, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 19, 2019, noon N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 11.2 μg/m3 (47) 47.0
 
March 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 12.5 μg/m3 (51) 51.0
 
March 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 9.1 μg/m3 (38) 38.0
 
March 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.4 μg/m3 (31) 31.0
 
March 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 6.4 μg/m3 (27) 27.0
 
March 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 5.9 μg/m3 (25) 28.0
 
March 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 6.7 μg/m3 (28) 28.0
 
March 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 6.6 μg/m3 (28) 28.0
 
March 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 4.1 μg/m3 (17) 25.0
 
March 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 4.5 μg/m3 (19) 22.0
 
March 19, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 5.3 μg/m3 (22) 22.0
 
March 19, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 3.0 μg/m3 (12) 32.0
 
March 19, 2019, midnight N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 0.8 μg/m3 (3) 43.0
 
March 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 0.9 μg/m3 (4) 44.0
 
March 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 1.5 μg/m3 (6) 42.0
 
March 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 1.2 μg/m3 (5) 44.0
 
March 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 1.0 μg/m3 (4) 42.0
 
March 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 1.1 μg/m3 (5) 40.0
 
March 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 1.2 μg/m3 (5) 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 1.3 μg/m3 (5) 36.0
 
March 18, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 1.3 μg/m3 (5) 35.0
 
March 18, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 1.5 μg/m3 (6) 32.0
 
March 18, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 1.4 μg/m3 (6) 30.0
 
March 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 1.1 μg/m3 (5) 34.0
 
March 18, 2019, noon N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 1.0 μg/m3 (4) 35.0
 
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 1.0 μg/m3 (4) 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 1.0 μg/m3 (4) 36.0