AQSQID: 000090121

Site Name: Edmonton East

Location: Strathcona Co, CC

Reporting: True, Located: True

Current AQI: 28.0

Strathcona Co CC, CA: 53.5472, -113.3681

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 25, 2019, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 3.2 μg/m3 (13) 28.0
 
March 25, 2019, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 2.8 μg/m3 (12) 28.0
 
March 25, 2019, 6 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 3.0 μg/m3 (12) 25.0
 
March 25, 2019, 5 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 25, 2019, 4 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 25, 2019, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 6.2 μg/m3 (26) 27.0
 
March 25, 2019, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 7.3 μg/m3 (30) 30.0
 
March 25, 2019, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 25, 2019, midnight N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 8.6 μg/m3 (36) 36.0
 
March 24, 2019, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 12.8 μg/m3 (52) 52.0
 
March 24, 2019, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 11.6 μg/m3 (48) 48.0
 
March 24, 2019, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 14.7 μg/m3 (56) 56.0
 
March 24, 2019, 8 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 9.1 μg/m3 (38) 38.0
 
March 24, 2019, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 5.8 μg/m3 (24) 25.0
 
March 24, 2019, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 5.8 μg/m3 (24) 27.0
 
March 24, 2019, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 7.2 μg/m3 (30) 30.0
 
March 24, 2019, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 24, 2019, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 6.6 μg/m3 (28) 28.0
 
March 24, 2019, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 6.0 μg/m3 (25) 25.0
 
March 24, 2019, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 4.0 μg/m3 (17) 22.0
 
March 24, 2019, noon N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 4.0 μg/m3 (17) 22.0
 
March 24, 2019, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 4.0 μg/m3 (17) 22.0
 
March 24, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.3 μg/m3 (18) 18.0
 
March 24, 2019, 9 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 3.8 μg/m3 (16) 25.0
 
March 24, 2019, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 3.5 μg/m3 (15) 28.0
 
March 24, 2019, 7 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 3.5 μg/m3 (15) 30.0
 
March 24, 2019, 6 a.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 5.1 μg/m3 (21) 29.0
 
March 24, 2019, 5 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 4.0 μg/m3 (17) 31.0
 
March 24, 2019, 4 a.m. N/A N/A N/A 12.0 ppb (11) N/A 3.0 ppb (4) 37.0 ppb (28) N/A N/A 3.8 μg/m3 (16) 28.0
 
March 24, 2019, 3 a.m. N/A N/A N/A 22.0 ppb (20) N/A 6.0 ppb (9) 28.0 ppb (22) N/A N/A 4.3 μg/m3 (18) 22.0
 
March 24, 2019, 2 a.m. N/A N/A N/A 24.0 ppb (22) N/A 2.0 ppb (3) 26.0 ppb (20) N/A N/A 3.8 μg/m3 (16) 22.0
 
March 24, 2019, 1 a.m. N/A N/A N/A 19.0 ppb (18) N/A 3.0 ppb (4) 31.0 ppb (24) N/A N/A 5.0 μg/m3 (21) 24.0
 
March 24, 2019, midnight N/A N/A N/A 13.0 ppb (12) N/A 4.0 ppb (6) 41.0 ppb (32) N/A N/A 3.8 μg/m3 (16) 32.0
 
March 23, 2019, 11 p.m. N/A N/A N/A 11.0 ppb (10) N/A 4.0 ppb (6) 45.0 ppb (35) N/A N/A 4.2 μg/m3 (18) 35.0
 
March 23, 2019, 10 p.m. N/A N/A N/A 17.0 ppb (16) N/A 8.0 ppb (11) 41.0 ppb (32) N/A N/A 5.9 μg/m3 (25) 32.0
 
March 23, 2019, 9 p.m. N/A N/A N/A 11.0 ppb (10) N/A 5.0 ppb (7) 47.0 ppb (36) N/A N/A 4.3 μg/m3 (18) 36.0
 
March 23, 2019, 8 p.m. N/A N/A N/A 14.0 ppb (13) N/A 15.0 ppb (21) 42.0 ppb (32) 0.0 ppb (0) N/A 6.8 μg/m3 (28) 32.0
 
March 23, 2019, 7 p.m. N/A N/A N/A 23.0 ppb (21) N/A 16.0 ppb (23) 32.0 ppb (25) 0.0 ppb (0) N/A 18.5 μg/m3 (64) 64.0
 
March 23, 2019, 6 p.m. N/A N/A N/A 20.0 ppb (19) N/A 2.0 ppb (3) 27.0 ppb (21) 0.0 ppb (0) N/A 42.0 μg/m3 (116) 116.0
 
March 23, 2019, 5 p.m. N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) 20.0 ppb (15) 0.0 ppb (0) N/A 46.7 μg/m3 (128) 128.0
 
March 23, 2019, 4 p.m. N/A N/A N/A 23.0 ppb (21) N/A 0.0 ppb (0) 15.0 ppb (12) 0.0 ppb (0) N/A 46.8 μg/m3 (128) 128.0
 
March 23, 2019, 3 p.m. N/A N/A N/A 25.0 ppb (23) N/A 0.0 ppb (0) 15.0 ppb (12) 0.0 ppb (0) N/A 42.7 μg/m3 (118) 118.0
 
March 23, 2019, 2 p.m. N/A N/A N/A 30.0 ppb (28) N/A 0.0 ppb (0) 13.0 ppb (10) 0.0 ppb (0) N/A 38.7 μg/m3 (108) 108.0
 
March 23, 2019, 1 p.m. N/A N/A N/A 27.0 ppb (25) N/A 0.0 ppb (0) 7.0 ppb (5) 0.0 ppb (0) N/A 47.5 μg/m3 (130) 130.0
 
March 23, 2019, noon N/A N/A N/A 30.0 ppb (28) N/A 0.0 ppb (0) 5.0 ppb (4) 0.0 ppb (0) N/A 48.7 μg/m3 (133) 133.0
 
March 23, 2019, 11 a.m. N/A N/A N/A 30.0 ppb (28) N/A 0.0 ppb (0) 6.0 ppb (5) 0.0 ppb (0) N/A 54.7 μg/m3 (148) 148.0
 
March 23, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 56.7 μg/m3 (151) 151.0
 
March 23, 2019, 9 a.m. N/A N/A N/A 31.0 ppb (29) N/A 1.0 ppb (1) 1.0 ppb (1) 0.1 ppb (1) N/A 60.9 μg/m3 (153) 153.0
 
March 23, 2019, 8 a.m. N/A N/A N/A 34.0 ppb (31) N/A 1.0 ppb (1) 0.0 ppb (0) 0.1 ppb (1) N/A 56.1 μg/m3 (150) 150.0
 
March 23, 2019, 7 a.m. N/A N/A N/A 41.0 ppb (38) N/A 3.0 ppb (4) 0.0 ppb (0) 0.1 ppb (1) N/A 60.3 μg/m3 (153) 153.0
 
March 23, 2019, 6 a.m. N/A N/A N/A 41.0 ppb (38) N/A 4.0 ppb (6) 5.0 ppb (4) 0.1 ppb (1) N/A 58.2 μg/m3 (151) 151.0
 
March 23, 2019, 5 a.m. N/A N/A N/A 37.0 ppb (34) N/A 3.0 ppb (4) 10.0 ppb (8) 0.1 ppb (1) N/A 48.4 μg/m3 (132) 132.0
 
March 23, 2019, 4 a.m. N/A N/A N/A 34.0 ppb (31) N/A 1.0 ppb (1) 16.0 ppb (12) 0.1 ppb (1) N/A 42.4 μg/m3 (117) 117.0
 
March 23, 2019, 3 a.m. N/A N/A N/A 30.0 ppb (28) N/A 1.0 ppb (1) 26.0 ppb (20) 0.1 ppb (1) N/A 37.6 μg/m3 (105) 105.0
 
March 23, 2019, 2 a.m. N/A N/A N/A 37.0 ppb (34) N/A 0.0 ppb (0) 23.0 ppb (18) 0.1 ppb (1) N/A 34.0 μg/m3 (97) 97.0
 
March 23, 2019, 1 a.m. N/A N/A N/A 22.0 ppb (20) N/A 1.0 ppb (1) 44.0 ppb (34) 0.0 ppb (0) N/A 29.5 μg/m3 (87) 87.0
 
March 23, 2019, midnight N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) 54.0 ppb (42) 0.0 ppb (0) N/A 31.1 μg/m3 (91) 91.0
 
March 22, 2019, 11 p.m. N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) 50.0 ppb (38) 0.0 ppb (0) N/A 31.5 μg/m3 (91) 91.0
 
March 22, 2019, 10 p.m. N/A N/A N/A 17.0 ppb (16) N/A 1.0 ppb (1) 44.0 ppb (34) 0.0 ppb (0) N/A 31.2 μg/m3 (91) 91.0
 
March 22, 2019, 9 p.m. N/A N/A N/A 16.0 ppb (15) N/A 1.0 ppb (1) 44.0 ppb (34) 0.0 ppb (0) N/A 32.4 μg/m3 (93) 93.0
 
March 22, 2019, 8 p.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 43.0 ppb (33) 0.0 ppb (0) N/A 35.4 μg/m3 (100) 100.0
 
March 22, 2019, 7 p.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 38.3 μg/m3 (107) 107.0
 
March 22, 2019, 6 p.m. N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 30.0 ppb (23) 0.0 ppb (0) N/A 36.5 μg/m3 (102) 102.0
 
March 22, 2019, 5 p.m. N/A N/A N/A 26.0 ppb (24) N/A 1.0 ppb (1) 22.0 ppb (17) 0.1 ppb (1) N/A 34.9 μg/m3 (99) 99.0
 
March 22, 2019, 4 p.m. N/A N/A N/A 31.0 ppb (29) N/A 1.0 ppb (1) 18.0 ppb (14) 0.1 ppb (1) N/A 29.4 μg/m3 (87) 87.0
 
March 22, 2019, 3 p.m. N/A N/A N/A 32.0 ppb (30) N/A 0.0 ppb (0) 9.0 ppb (7) 0.2 ppb (2) N/A 24.9 μg/m3 (77) 77.0
 
March 22, 2019, 2 p.m. N/A N/A N/A 37.0 ppb (34) N/A 0.0 ppb (0) 4.0 ppb (3) 0.2 ppb (2) N/A 23.3 μg/m3 (74) 74.0
 
March 22, 2019, 1 p.m. N/A N/A N/A 37.0 ppb (34) N/A 0.0 ppb (0) 2.0 ppb (2) 0.1 ppb (1) N/A 13.8 μg/m3 (54) 54.0
 
March 22, 2019, noon N/A N/A N/A 24.0 ppb (22) N/A 0.0 ppb (0) 13.0 ppb (10) 0.0 ppb (0) N/A 10.5 μg/m3 (44) 44.0
 
March 22, 2019, 11 a.m. N/A N/A N/A 29.0 ppb (27) N/A 0.0 ppb (0) 11.0 ppb (8) 0.1 ppb (1) N/A 14.3 μg/m3 (55) 55.0
 
March 22, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.9 μg/m3 (54) 54.0
 
March 22, 2019, 9 a.m. N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 7.9 μg/m3 (33) 33.0
 
March 22, 2019, 8 a.m. N/A N/A N/A 12.0 ppb (11) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 10.2 μg/m3 (42) 42.0
 
March 22, 2019, 7 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 9.7 μg/m3 (40) 40.0
 
March 22, 2019, 6 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 10.3 μg/m3 (43) 43.0
 
March 22, 2019, 5 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 11.2 μg/m3 (47) 47.0
 
March 22, 2019, 4 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 7.8 μg/m3 (32) 32.0
 
March 22, 2019, 3 a.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 40.0 ppb (31) N/A N/A 7.4 μg/m3 (31) 31.0
 
March 22, 2019, 2 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 46.0 ppb (35) N/A N/A 10.5 μg/m3 (44) 44.0
 
March 22, 2019, 1 a.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) 50.0 ppb (38) N/A N/A 12.5 μg/m3 (51) 51.0
 
March 22, 2019, midnight N/A N/A N/A 6.0 ppb (6) N/A 2.0 ppb (3) 55.0 ppb (42) N/A N/A 11.1 μg/m3 (46) 46.0
 
March 21, 2019, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 59.0 ppb (45) N/A N/A 11.8 μg/m3 (49) 49.0
 
March 21, 2019, 10 p.m. N/A N/A N/A 21.0 ppb (19) N/A 2.0 ppb (3) 51.0 ppb (39) 0.0 ppb (0) N/A 41.1 μg/m3 (114) 114.0
 
March 21, 2019, 9 p.m. N/A N/A N/A 24.0 ppb (22) N/A 3.0 ppb (4) 51.0 ppb (39) 0.0 ppb (0) N/A 46.4 μg/m3 (127) 127.0
 
March 21, 2019, 8 p.m. N/A N/A N/A 7.0 ppb (6) N/A 2.0 ppb (3) 68.0 ppb (52) N/A N/A 28.0 μg/m3 (84) 84.0
 
March 21, 2019, 7 p.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 66.0 ppb (51) N/A N/A 28.0 μg/m3 (84) 84.0
 
March 21, 2019, 6 p.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) 61.0 ppb (47) N/A N/A 23.4 μg/m3 (74) 74.0
 
March 21, 2019, 5 p.m. N/A N/A N/A 53.0 ppb (49) N/A 2.0 ppb (3) 16.0 ppb (12) 0.3 ppb (3) N/A 72.6 μg/m3 (159) 159.0
 
March 21, 2019, 4 p.m. N/A N/A N/A 63.0 ppb (60) N/A 2.0 ppb (3) 9.0 ppb (7) 0.3 ppb (3) N/A 71.6 μg/m3 (158) 158.0
 
March 21, 2019, 3 p.m. N/A N/A N/A 54.0 ppb (50) N/A 1.0 ppb (1) 5.0 ppb (4) 0.3 ppb (3) N/A 58.4 μg/m3 (152) 152.0
 
March 21, 2019, 2 p.m. N/A N/A N/A 43.0 ppb (40) N/A 1.0 ppb (1) 2.0 ppb (2) 0.4 ppb (4) N/A 38.1 μg/m3 (106) 106.0
 
March 21, 2019, 1 p.m. N/A N/A N/A 53.0 ppb (49) N/A 1.0 ppb (1) 0.0 ppb (0) 0.5 ppb (6) N/A 35.8 μg/m3 (101) 101.0
 
March 21, 2019, noon N/A N/A N/A 56.0 ppb (52) N/A 1.0 ppb (1) 0.0 ppb (0) 0.3 ppb (3) N/A 32.9 μg/m3 (94) 94.0
 
March 21, 2019, 11 a.m. N/A N/A N/A 51.0 ppb (47) N/A 0.0 ppb (0) 1.0 ppb (1) 0.2 ppb (2) N/A 29.7 μg/m3 (88) 88.0
 
March 21, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 29.7 μg/m3 (88) 88.0
 
March 21, 2019, 9 a.m. N/A N/A N/A 47.0 ppb (44) N/A 0.0 ppb (0) 7.0 ppb (5) 0.2 ppb (2) N/A 29.6 μg/m3 (87) 87.0
 
March 21, 2019, 8 a.m. N/A N/A N/A 35.0 ppb (32) N/A 1.0 ppb (1) 23.0 ppb (18) 0.1 ppb (1) N/A 24.5 μg/m3 (77) 77.0
 
March 21, 2019, 7 a.m. N/A N/A N/A 58.0 ppb (54) N/A 1.0 ppb (1) 5.0 ppb (4) 0.2 ppb (2) N/A 27.8 μg/m3 (84) 84.0
 
March 21, 2019, 6 a.m. N/A N/A N/A 60.0 ppb (56) N/A 1.0 ppb (1) 1.0 ppb (1) 0.3 ppb (3) N/A 32.4 μg/m3 (93) 93.0
 
March 21, 2019, 5 a.m. N/A N/A N/A 48.0 ppb (44) N/A 1.0 ppb (1) 15.0 ppb (12) 0.2 ppb (2) N/A 29.8 μg/m3 (88) 88.0
 
March 21, 2019, 4 a.m. N/A N/A N/A 29.0 ppb (27) N/A 1.0 ppb (1) 36.0 ppb (28) 0.1 ppb (1) N/A 23.8 μg/m3 (75) 75.0
 
March 21, 2019, 3 a.m. N/A N/A N/A 29.0 ppb (27) N/A 1.0 ppb (1) 40.0 ppb (31) 0.1 ppb (1) N/A 23.8 μg/m3 (75) 75.0
 
March 21, 2019, 2 a.m. N/A N/A N/A 35.0 ppb (32) N/A 1.0 ppb (1) 37.0 ppb (28) 0.1 ppb (1) N/A 21.7 μg/m3 (71) 71.0
 
March 21, 2019, 1 a.m. N/A N/A N/A 38.0 ppb (35) N/A 2.0 ppb (3) 44.0 ppb (34) 0.1 ppb (1) N/A 21.6 μg/m3 (70) 70.0
 
March 21, 2019, midnight N/A N/A N/A 24.0 ppb (22) N/A 3.0 ppb (4) 56.0 ppb (43) 0.0 ppb (0) N/A 16.6 μg/m3 (60) 60.0
 
March 20, 2019, 11 p.m. N/A N/A N/A 29.0 ppb (27) N/A 9.0 ppb (13) 62.0 ppb (48) 0.0 ppb (0) N/A 17.4 μg/m3 (61) 61.0
 
March 20, 2019, 10 p.m. N/A N/A N/A 31.0 ppb (29) N/A 7.0 ppb (10) 49.0 ppb (38) 0.0 ppb (0) N/A 18.3 μg/m3 (63) 63.0
 
March 20, 2019, 9 p.m. N/A N/A N/A 30.0 ppb (28) N/A 6.0 ppb (9) 46.0 ppb (35) 0.0 ppb (0) N/A 18.1 μg/m3 (63) 63.0
 
March 20, 2019, 8 p.m. N/A N/A N/A 31.0 ppb (29) N/A 5.0 ppb (7) 40.0 ppb (31) 0.1 ppb (1) N/A 18.7 μg/m3 (64) 64.0
 
March 20, 2019, 7 p.m. N/A N/A N/A 27.0 ppb (25) N/A 4.0 ppb (6) 41.0 ppb (32) 0.0 ppb (0) N/A 15.4 μg/m3 (57) 57.0
 
March 20, 2019, 6 p.m. N/A N/A N/A 30.0 ppb (28) N/A 6.0 ppb (9) 34.0 ppb (26) 0.0 ppb (0) N/A 15.6 μg/m3 (58) 58.0
 
March 20, 2019, 5 p.m. N/A N/A N/A 32.0 ppb (30) N/A 3.0 ppb (4) 34.0 ppb (26) 0.1 ppb (1) N/A 17.3 μg/m3 (61) 61.0
 
March 20, 2019, 4 p.m. N/A N/A N/A 40.0 ppb (37) N/A 1.0 ppb (1) 27.0 ppb (21) 0.1 ppb (1) N/A 23.1 μg/m3 (74) 74.0
 
March 20, 2019, 3 p.m. N/A N/A N/A 55.0 ppb (51) N/A 1.0 ppb (1) 15.0 ppb (12) 0.4 ppb (4) N/A 30.1 μg/m3 (89) 89.0
 
March 20, 2019, 2 p.m. N/A N/A N/A 72.0 ppb (69) N/A 1.0 ppb (1) 3.0 ppb (2) 0.5 ppb (6) N/A 37.8 μg/m3 (106) 106.0
 
March 20, 2019, 1 p.m. N/A N/A N/A 64.0 ppb (61) N/A 2.0 ppb (3) 1.0 ppb (1) 0.3 ppb (3) N/A 27.7 μg/m3 (83) 83.0
 
March 20, 2019, noon N/A N/A N/A 35.0 ppb (32) N/A 2.0 ppb (3) 25.0 ppb (19) 0.1 ppb (1) N/A 15.3 μg/m3 (57) 57.0
 
March 20, 2019, 11 a.m. N/A N/A N/A 21.0 ppb (19) N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 12.8 μg/m3 (52) 52.0
 
March 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.6 μg/m3 (53) 53.0
 
March 20, 2019, 9 a.m. N/A N/A N/A 37.0 ppb (34) N/A 0.0 ppb (0) 21.0 ppb (16) 0.1 ppb (1) N/A 15.4 μg/m3 (57) 57.0
 
March 20, 2019, 8 a.m. N/A N/A N/A 23.0 ppb (21) N/A 0.0 ppb (0) 34.0 ppb (26) 0.0 ppb (0) N/A 11.2 μg/m3 (47) 47.0
 
March 20, 2019, 7 a.m. N/A N/A N/A 16.0 ppb (15) N/A 1.0 ppb (1) 46.0 ppb (35) N/A N/A 8.2 μg/m3 (34) 35.0
 
March 20, 2019, 6 a.m. N/A N/A N/A 28.0 ppb (26) N/A 2.0 ppb (3) 37.0 ppb (28) 0.0 ppb (0) N/A 11.7 μg/m3 (49) 49.0
 
March 20, 2019, 5 a.m. N/A N/A N/A 33.0 ppb (31) N/A 2.0 ppb (3) 29.0 ppb (22) 0.1 ppb (1) N/A 15.3 μg/m3 (57) 57.0
 
March 20, 2019, 4 a.m. N/A N/A N/A 52.0 ppb (48) N/A 2.0 ppb (3) 14.0 ppb (11) 0.1 ppb (1) N/A 18.1 μg/m3 (63) 63.0
 
March 20, 2019, 3 a.m. N/A N/A N/A 52.0 ppb (48) N/A 2.0 ppb (3) 11.0 ppb (8) 0.1 ppb (1) N/A 18.0 μg/m3 (63) 63.0
 
March 20, 2019, 2 a.m. N/A N/A N/A 47.0 ppb (44) N/A 1.0 ppb (1) 13.0 ppb (10) 0.1 ppb (1) N/A 17.5 μg/m3 (62) 62.0
 
March 20, 2019, 1 a.m. N/A N/A N/A 20.0 ppb (19) N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 17.8 μg/m3 (62) 62.0
 
March 20, 2019, midnight N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 54.0 ppb (42) N/A N/A 10.2 μg/m3 (42) 42.0
 
March 19, 2019, 11 p.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 59.0 ppb (45) N/A N/A 6.3 μg/m3 (26) 45.0
 
March 19, 2019, 10 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 59.0 ppb (45) N/A N/A 5.3 μg/m3 (22) 45.0
 
March 19, 2019, 9 p.m. N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) 52.0 ppb (40) N/A N/A 7.1 μg/m3 (30) 40.0
 
March 19, 2019, 8 p.m. N/A N/A N/A 16.0 ppb (15) N/A 4.0 ppb (6) 49.0 ppb (38) N/A N/A 6.7 μg/m3 (28) 38.0
 
March 19, 2019, 7 p.m. N/A N/A N/A 25.0 ppb (23) N/A 10.0 ppb (14) 43.0 ppb (33) 0.0 ppb (0) N/A 10.8 μg/m3 (45) 45.0
 
March 19, 2019, 6 p.m. N/A N/A N/A 25.0 ppb (23) N/A 5.0 ppb (7) 38.0 ppb (29) 0.0 ppb (0) N/A 12.1 μg/m3 (50) 50.0
 
March 19, 2019, 5 p.m. N/A N/A N/A 30.0 ppb (28) N/A 1.0 ppb (1) 30.0 ppb (23) 0.0 ppb (0) N/A 16.9 μg/m3 (60) 60.0
 
March 19, 2019, 4 p.m. N/A N/A N/A 32.0 ppb (30) N/A 0.0 ppb (0) 28.0 ppb (22) 0.0 ppb (0) N/A 14.5 μg/m3 (55) 55.0
 
March 19, 2019, 3 p.m. N/A N/A N/A 46.0 ppb (43) N/A 1.0 ppb (1) 16.0 ppb (12) 0.1 ppb (1) N/A 13.9 μg/m3 (54) 54.0
 
March 19, 2019, 2 p.m. N/A N/A N/A 54.0 ppb (50) N/A 1.0 ppb (1) 9.0 ppb (7) 0.2 ppb (2) N/A 16.8 μg/m3 (60) 60.0
 
March 19, 2019, 1 p.m. N/A N/A N/A 52.0 ppb (48) N/A 1.0 ppb (1) 8.0 ppb (6) 0.1 ppb (1) N/A 18.6 μg/m3 (64) 64.0
 
March 19, 2019, noon N/A N/A N/A 34.0 ppb (31) N/A 0.0 ppb (0) 23.0 ppb (18) 0.1 ppb (1) N/A 8.8 μg/m3 (37) 37.0
 
March 19, 2019, 11 a.m. N/A N/A N/A 22.0 ppb (20) N/A 0.0 ppb (0) 33.0 ppb (25) 0.0 ppb (0) N/A 6.7 μg/m3 (28) 28.0
 
March 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.5 μg/m3 (27) 27.0
 
March 19, 2019, 9 a.m. N/A N/A N/A 16.0 ppb (15) N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 6.5 μg/m3 (27) 32.0
 
March 19, 2019, 8 a.m. N/A N/A N/A 13.0 ppb (12) N/A 0.0 ppb (0) 44.0 ppb (34) 0.0 ppb (0) N/A 7.2 μg/m3 (30) 34.0
 
March 19, 2019, 7 a.m. N/A N/A N/A 13.0 ppb (12) N/A 0.0 ppb (0) 46.0 ppb (35) N/A N/A 7.1 μg/m3 (30) 35.0
 
March 19, 2019, 6 a.m. N/A N/A N/A 15.0 ppb (14) N/A 0.0 ppb (0) 43.0 ppb (33) 0.0 ppb (0) N/A 6.6 μg/m3 (28) 33.0
 
March 19, 2019, 5 a.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 6.4 μg/m3 (27) 32.0
 
March 19, 2019, 4 a.m. N/A N/A N/A 21.0 ppb (19) N/A 1.0 ppb (1) 36.0 ppb (28) 0.0 ppb (0) N/A 8.0 μg/m3 (33) 33.0
 
March 19, 2019, 3 a.m. N/A N/A N/A 29.0 ppb (27) N/A 2.0 ppb (3) 30.0 ppb (23) 0.0 ppb (0) N/A 10.6 μg/m3 (44) 44.0
 
March 19, 2019, 2 a.m. N/A N/A N/A 33.0 ppb (31) N/A 2.0 ppb (3) 26.0 ppb (20) 0.1 ppb (1) N/A 10.1 μg/m3 (42) 42.0
 
March 19, 2019, 1 a.m. N/A N/A N/A 28.0 ppb (26) N/A 1.0 ppb (1) 33.0 ppb (25) 0.0 ppb (0) N/A 8.3 μg/m3 (35) 35.0
 
March 19, 2019, midnight N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 51.0 ppb (39) N/A N/A 6.3 μg/m3 (26) 39.0
 
March 18, 2019, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 55.0 ppb (42) N/A N/A 4.6 μg/m3 (19) 42.0
 
March 18, 2019, 10 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 56.0 ppb (43) N/A N/A 4.8 μg/m3 (20) 43.0
 
March 18, 2019, 9 p.m. N/A N/A N/A 8.0 ppb (7) N/A 2.0 ppb (3) 52.0 ppb (40) N/A N/A 5.4 μg/m3 (23) 40.0
 
March 18, 2019, 8 p.m. N/A N/A N/A 10.0 ppb (9) N/A 2.0 ppb (3) 48.0 ppb (37) N/A N/A 6.8 μg/m3 (28) 37.0
 
March 18, 2019, 7 p.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 48.0 ppb (37) N/A N/A 4.8 μg/m3 (20) 37.0
 
March 18, 2019, 6 p.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) 45.0 ppb (35) N/A N/A 4.9 μg/m3 (20) 35.0
 
March 18, 2019, 5 p.m. N/A N/A N/A 15.0 ppb (14) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 5.1 μg/m3 (21) 31.0
 
March 18, 2019, 4 p.m. N/A N/A N/A 35.0 ppb (32) N/A 1.0 ppb (1) 25.0 ppb (19) 0.1 ppb (1) N/A 13.1 μg/m3 (52) 52.0
 
March 18, 2019, 3 p.m. N/A N/A N/A 50.0 ppb (46) N/A 2.0 ppb (3) 13.0 ppb (10) 0.2 ppb (2) N/A 16.7 μg/m3 (60) 60.0
 
March 18, 2019, 2 p.m. N/A N/A N/A 54.0 ppb (50) N/A 1.0 ppb (1) 6.0 ppb (5) 0.2 ppb (2) N/A 19.4 μg/m3 (66) 66.0
 
March 18, 2019, 1 p.m. N/A N/A N/A 55.0 ppb (51) N/A 1.0 ppb (1) 3.0 ppb (2) 0.1 ppb (1) N/A 13.7 μg/m3 (54) 54.0
 
March 18, 2019, noon N/A N/A N/A 41.0 ppb (38) N/A 1.0 ppb (1) 14.0 ppb (11) 0.0 ppb (0) N/A 8.4 μg/m3 (35) 38.0
 
March 18, 2019, 11 a.m. N/A N/A N/A 24.0 ppb (22) N/A 1.0 ppb (1) 31.0 ppb (24) N/A N/A 6.2 μg/m3 (26) 26.0
 
March 18, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
March 18, 2019, 9 a.m. N/A N/A N/A 17.0 ppb (16) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 5.5 μg/m3 (23) 28.0