AQSQID: 000090222

Site Name: Calgary Northwest

Location: Calgary (Varsity Acres), CC

Reporting: True, Located: True

Current AQI: 36.0

Calgary (Varsity Acres) CC, CA: 51.0814, -114.1403

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Nov. 30, 2019, 2 a.m. N/A N/A N/A 42.0 ppb (39) N/A N/A 1.0 ppb (1) 1.02 ppb (11) N/A 14.7 μg/m3 (56) 56.0
 
Nov. 30, 2019, 1 a.m. N/A N/A N/A 40.0 ppb (37) N/A N/A 1.0 ppb (1) 1.15 ppb (13) N/A 20.5 μg/m3 (68) 68.0
 
Nov. 30, 2019, midnight N/A N/A N/A 37.0 ppb (34) N/A N/A 0.0 ppb (0) 0.9 ppb (10) N/A 23.7 μg/m3 (75) 75.0
 
Nov. 29, 2019, 11 p.m. N/A N/A N/A 34.0 ppb (31) N/A N/A 2.0 ppb (2) 0.76 ppb (8) N/A 25.0 μg/m3 (78) 78.0
 
Nov. 29, 2019, 10 p.m. N/A N/A N/A 26.0 ppb (24) N/A N/A 8.0 ppb (6) 0.67 ppb (7) N/A 26.1 μg/m3 (80) 80.0
 
Nov. 29, 2019, 9 p.m. N/A N/A N/A 21.0 ppb (19) N/A N/A 12.0 ppb (9) 0.62 ppb (7) N/A 24.5 μg/m3 (77) 77.0
 
Nov. 29, 2019, 8 p.m. N/A N/A N/A 17.0 ppb (16) N/A N/A 16.0 ppb (12) 0.58 ppb (6) N/A 19.7 μg/m3 (66) 66.0
 
Nov. 29, 2019, 7 p.m. N/A N/A N/A 13.0 ppb (12) N/A N/A 18.0 ppb (14) 0.54 ppb (6) N/A 11.3 μg/m3 (47) 47.0
 
Nov. 29, 2019, 6 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A 17.0 ppb (13) 0.51 ppb (6) N/A 3.0 μg/m3 (12) 13.0
 
Nov. 29, 2019, 5 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A 16.0 ppb (12) 0.47 ppb (5) N/A 1.3 μg/m3 (5) 12.0
 
Nov. 29, 2019, 4 p.m. N/A N/A N/A 14.0 ppb (13) N/A N/A 13.0 ppb (10) 0.48 ppb (5) N/A 1.0 μg/m3 (4) 13.0
 
Nov. 29, 2019, 3 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A 7.0 ppb (5) 0.47 ppb (5) N/A 1.0 μg/m3 (4) 17.0
 
Nov. 29, 2019, 1 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A 5.0 ppb (4) 0.42 ppb (5) N/A 0.7 μg/m3 (3) 17.0
 
Nov. 29, 2019, 11 a.m. N/A N/A N/A 19.0 ppb (18) N/A N/A 4.0 ppb (3) 0.42 ppb (5) N/A 0.6 μg/m3 (2) 18.0
 
Nov. 29, 2019, 10 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A N/A N/A 0.8 μg/m3 (3) 17.0
 
Nov. 29, 2019, 8 a.m. N/A N/A N/A 19.0 ppb (18) N/A N/A 5.0 ppb (4) 0.44 ppb (5) N/A 1.2 μg/m3 (5) 18.0
 
Nov. 29, 2019, 5 a.m. N/A N/A N/A 22.0 ppb (20) N/A N/A 5.0 ppb (4) 0.48 ppb (5) N/A 2.6 μg/m3 (11) 20.0
 
Nov. 29, 2019, 3 a.m. N/A N/A N/A 26.0 ppb (24) N/A N/A 3.0 ppb (2) 0.53 ppb (6) N/A 3.2 μg/m3 (13) 24.0
 
Nov. 29, 2019, 2 a.m. N/A N/A N/A 32.0 ppb (30) N/A N/A 1.0 ppb (1) 0.63 ppb (7) N/A 4.4 μg/m3 (18) 30.0
 
Nov. 29, 2019, 1 a.m. N/A N/A N/A 32.0 ppb (30) N/A N/A 1.0 ppb (1) 0.64 ppb (7) N/A 6.7 μg/m3 (28) 30.0
 
Nov. 29, 2019, midnight N/A N/A N/A 28.0 ppb (26) N/A N/A 3.0 ppb (2) 0.57 ppb (6) N/A 7.4 μg/m3 (31) 31.0
 
Nov. 28, 2019, 11 p.m. N/A N/A N/A 16.0 ppb (15) N/A N/A 13.0 ppb (10) 0.49 ppb (5) N/A 9.3 μg/m3 (39) 39.0
 
Nov. 28, 2019, 10 p.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 20.0 ppb (15) 0.46 ppb (5) N/A 15.0 μg/m3 (56) 56.0
 
Nov. 28, 2019, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 22.0 ppb (17) 0.45 ppb (5) N/A 11.7 μg/m3 (49) 49.0
 
Nov. 28, 2019, 7 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) 0.43 ppb (5) N/A 4.6 μg/m3 (19) 19.0
 
Nov. 28, 2019, 6 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 21.0 ppb (16) 0.43 ppb (5) N/A 3.0 μg/m3 (12) 16.0
 
Nov. 28, 2019, 5 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 21.0 ppb (16) 0.42 ppb (5) N/A 1.7 μg/m3 (7) 16.0
 
Nov. 28, 2019, 4 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 19.0 ppb (15) 0.43 ppb (5) N/A 1.4 μg/m3 (6) 15.0
 
Nov. 28, 2019, 3 p.m. N/A N/A N/A 17.0 ppb (16) N/A N/A 10.0 ppb (8) 0.46 ppb (5) N/A 1.1 μg/m3 (5) 16.0
 
Nov. 28, 2019, 2 p.m. N/A N/A N/A 20.0 ppb (19) N/A N/A 7.0 ppb (5) 0.46 ppb (5) N/A 0.9 μg/m3 (4) 19.0
 
Nov. 28, 2019, 1 p.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 18.0 ppb (14) 0.41 ppb (5) N/A 1.0 μg/m3 (4) 14.0
 
Nov. 28, 2019, noon N/A N/A N/A 9.0 ppb (8) N/A N/A 18.0 ppb (14) 0.4 ppb (4) N/A 1.1 μg/m3 (5) 14.0
 
Nov. 28, 2019, 10 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 0.8 μg/m3 (3) 7.0
 
Nov. 28, 2019, 7 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 19.0 ppb (15) 0.41 ppb (5) N/A 0.8 μg/m3 (3) 15.0
 
Nov. 28, 2019, 6 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 21.0 ppb (16) 0.4 ppb (4) N/A 0.4 μg/m3 (2) 16.0
 
Nov. 28, 2019, 5 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 22.0 ppb (17) 0.41 ppb (5) N/A 0.5 μg/m3 (2) 17.0
 
Nov. 28, 2019, 4 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 22.0 ppb (17) 0.41 ppb (5) N/A 0.3 μg/m3 (1) 17.0
 
Nov. 28, 2019, 3 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 23.0 ppb (18) 0.41 ppb (5) N/A 0.3 μg/m3 (1) 18.0
 
Nov. 28, 2019, 2 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 23.0 ppb (18) 0.42 ppb (5) N/A 0.2 μg/m3 (1) 18.0
 
Nov. 28, 2019, midnight N/A N/A N/A 7.0 ppb (6) N/A N/A 23.0 ppb (18) 0.42 ppb (5) N/A 0.2 μg/m3 (1) 18.0
 
Nov. 27, 2019, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 24.0 ppb (18) 0.42 ppb (5) N/A 0.2 μg/m3 (1) 18.0
 
Nov. 27, 2019, 10 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 25.0 ppb (19) 0.41 ppb (5) N/A 0.1 μg/m3 (0) 19.0
 
Nov. 27, 2019, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) 0.4 ppb (4) N/A 0.1 μg/m3 (0) 21.0
 
Nov. 27, 2019, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) 0.4 ppb (4) N/A 0.1 μg/m3 (0) 21.0
 
Nov. 27, 2019, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) 0.4 ppb (4) N/A 0.1 μg/m3 (0) 20.0
 
Nov. 27, 2019, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) 0.4 ppb (4) N/A 0.2 μg/m3 (1) 20.0
 
Nov. 27, 2019, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) 0.4 ppb (4) N/A 0.6 μg/m3 (2) 20.0
 
Nov. 27, 2019, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) 0.41 ppb (5) N/A 1.3 μg/m3 (5) 20.0
 
Nov. 27, 2019, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 25.0 ppb (19) 0.41 ppb (5) N/A 0.6 μg/m3 (2) 19.0
 
Nov. 27, 2019, 1 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 23.0 ppb (18) 0.41 ppb (5) N/A 0.0 μg/m3 (0) 18.0
 
Nov. 27, 2019, noon N/A N/A N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) 0.4 ppb (4) N/A 0.1 μg/m3 (0) 18.0
 
Nov. 27, 2019, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 25.0 ppb (19) 0.38 ppb (4) N/A 0.1 μg/m3 (0) 19.0
 
Nov. 27, 2019, 10 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 0.1 μg/m3 (0) 4.0
 
Nov. 27, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) 0.38 ppb (4) N/A 0.1 μg/m3 (0) 20.0
 
Nov. 27, 2019, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 24.0 ppb (18) 0.38 ppb (4) N/A 0.2 μg/m3 (1) 18.0
 
Nov. 27, 2019, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 22.0 ppb (17) 0.39 ppb (4) N/A 2.3 μg/m3 (10) 17.0
 
Nov. 27, 2019, 6 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) 0.39 ppb (4) N/A 5.2 μg/m3 (22) 22.0
 
Nov. 27, 2019, 4 a.m. N/A N/A N/A 12.0 ppb (11) N/A N/A 18.0 ppb (14) 0.46 ppb (5) N/A 2.6 μg/m3 (11) 14.0
 
Nov. 27, 2019, 3 a.m. N/A N/A N/A 22.0 ppb (20) N/A N/A 11.0 ppb (8) 0.54 ppb (6) N/A 3.6 μg/m3 (15) 20.0
 
Nov. 27, 2019, 2 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A 15.0 ppb (12) 0.5 ppb (6) N/A 2.7 μg/m3 (11) 17.0
 
Nov. 27, 2019, midnight N/A N/A N/A 9.0 ppb (8) N/A N/A 28.0 ppb (22) 0.45 ppb (5) N/A 1.0 μg/m3 (4) 22.0
 
Nov. 26, 2019, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 32.0 ppb (25) 0.43 ppb (5) N/A 0.1 μg/m3 (0) 25.0
 
Nov. 26, 2019, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) 0.41 ppb (5) N/A 0.1 μg/m3 (0) 26.0
 
Nov. 26, 2019, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) 0.4 ppb (4) N/A 0.2 μg/m3 (1) 26.0
 
Nov. 26, 2019, 8 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 34.0 ppb (26) 0.41 ppb (5) N/A 0.5 μg/m3 (2) 26.0
 
Nov. 26, 2019, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) 0.4 ppb (4) N/A 0.2 μg/m3 (1) 28.0
 
Nov. 26, 2019, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) 0.39 ppb (4) N/A 0.3 μg/m3 (1) 27.0
 
Nov. 26, 2019, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) 0.39 ppb (4) N/A 0.3 μg/m3 (1) 25.0
 
Nov. 26, 2019, 4 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 31.0 ppb (24) 0.42 ppb (5) N/A 0.1 μg/m3 (0) 24.0
 
Nov. 26, 2019, 3 p.m. N/A N/A N/A 14.0 ppb (13) N/A N/A 23.0 ppb (18) 0.46 ppb (5) N/A 0.5 μg/m3 (2) 18.0
 
Nov. 26, 2019, 2 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A 27.0 ppb (21) 0.41 ppb (5) N/A 0.1 μg/m3 (0) 21.0
 
Nov. 26, 2019, 1 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 28.0 ppb (22) 0.4 ppb (4) N/A 0.2 μg/m3 (1) 22.0
 
Nov. 26, 2019, noon N/A N/A N/A 9.0 ppb (8) N/A N/A 24.0 ppb (18) 0.39 ppb (4) N/A 0.7 μg/m3 (3) 18.0
 
Nov. 26, 2019, 11 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 27.0 ppb (21) 0.39 ppb (4) N/A 0.7 μg/m3 (3) 21.0
 
Nov. 26, 2019, 10 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 0.6 μg/m3 (2) 10.0
 
Nov. 26, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) 0.4 ppb (4) N/A 0.3 μg/m3 (1) 13.0
 
Nov. 26, 2019, 8 a.m. N/A N/A N/A 17.0 ppb (16) N/A N/A 13.0 ppb (10) 0.42 ppb (5) N/A 0.7 μg/m3 (3) 16.0
 
Nov. 26, 2019, 7 a.m. N/A N/A N/A 23.0 ppb (21) N/A N/A 9.0 ppb (7) 0.45 ppb (5) N/A 2.0 μg/m3 (8) 21.0
 
Nov. 26, 2019, 6 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A 18.0 ppb (14) 0.43 ppb (5) N/A 0.4 μg/m3 (2) 17.0
 
Nov. 26, 2019, 5 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A 19.0 ppb (15) 0.43 ppb (5) N/A 0.3 μg/m3 (1) 17.0
 
Nov. 26, 2019, 4 a.m. N/A N/A N/A 12.0 ppb (11) N/A N/A 26.0 ppb (20) 0.42 ppb (5) N/A 0.1 μg/m3 (0) 20.0
 
Nov. 26, 2019, 3 a.m. N/A N/A N/A 16.0 ppb (15) N/A N/A 22.0 ppb (17) 0.45 ppb (5) N/A 0.6 μg/m3 (2) 17.0
 
Nov. 26, 2019, 2 a.m. N/A N/A N/A 13.0 ppb (12) N/A N/A 25.0 ppb (19) 0.42 ppb (5) N/A 0.3 μg/m3 (1) 19.0
 
Nov. 26, 2019, 1 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A 31.0 ppb (24) 0.42 ppb (5) N/A 0.2 μg/m3 (1) 24.0
 
Nov. 26, 2019, midnight N/A N/A N/A 12.0 ppb (11) N/A N/A 29.0 ppb (22) 0.43 ppb (5) N/A 0.4 μg/m3 (2) 22.0
 
Nov. 25, 2019, 11 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A 30.0 ppb (23) 0.44 ppb (5) N/A 0.4 μg/m3 (2) 23.0
 
Nov. 25, 2019, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) 0.38 ppb (4) N/A -0.2 μg/m3 (0) 28.0
 
Nov. 25, 2019, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 39.0 ppb (30) 0.37 ppb (4) N/A -0.4 μg/m3 (0) 30.0
 
Nov. 25, 2019, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 39.0 ppb (30) 0.37 ppb (4) N/A -0.4 μg/m3 (0) 30.0
 
Nov. 25, 2019, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) 0.37 ppb (4) N/A -0.3 μg/m3 (0) 29.0
 
Nov. 25, 2019, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) 0.37 ppb (4) N/A -0.3 μg/m3 (0) 29.0
 
Nov. 25, 2019, 5 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 33.0 ppb (25) 0.41 ppb (5) N/A 0.3 μg/m3 (1) 25.0
 
Nov. 25, 2019, 4 p.m. N/A N/A N/A 26.0 ppb (24) N/A N/A 16.0 ppb (12) 0.51 ppb (6) N/A 1.4 μg/m3 (6) 24.0
 
Nov. 25, 2019, 3 p.m. N/A N/A N/A 40.0 ppb (37) N/A N/A 3.0 ppb (2) 0.68 ppb (8) N/A 1.5 μg/m3 (6) 37.0
 
Nov. 25, 2019, 2 p.m. N/A N/A N/A 38.0 ppb (35) N/A N/A 3.0 ppb (2) 0.69 ppb (8) N/A 0.7 μg/m3 (3) 35.0
 
Nov. 25, 2019, 1 p.m. N/A N/A N/A 31.0 ppb (29) N/A N/A 8.0 ppb (6) 0.51 ppb (6) N/A 0.2 μg/m3 (1) 29.0
 
Nov. 25, 2019, noon N/A N/A N/A 23.0 ppb (21) N/A N/A 15.0 ppb (12) 0.44 ppb (5) N/A 0.1 μg/m3 (0) 21.0
 
Nov. 25, 2019, 11 a.m. N/A N/A N/A 19.0 ppb (18) N/A N/A 19.0 ppb (15) 0.51 ppb (6) N/A 0.0 μg/m3 (0) 18.0
 
Nov. 25, 2019, 10 a.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A N/A N/A -0.3 μg/m3 (0) 11.0
 
Nov. 25, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) 0.39 ppb (4) N/A -0.3 μg/m3 (0) 21.0
 
Nov. 25, 2019, 8 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 30.0 ppb (23) 0.37 ppb (4) N/A -0.2 μg/m3 (0) 23.0
 
Nov. 25, 2019, 7 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A 28.0 ppb (22) 0.4 ppb (4) N/A 0.0 μg/m3 (0) 22.0
 
Nov. 25, 2019, 6 a.m. N/A N/A N/A 13.0 ppb (12) N/A N/A 25.0 ppb (19) 0.44 ppb (5) N/A 0.4 μg/m3 (2) 19.0
 
Nov. 25, 2019, 5 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A 29.0 ppb (22) 0.44 ppb (5) N/A 0.7 μg/m3 (3) 22.0
 
Nov. 25, 2019, 4 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A 22.0 ppb (17) 0.5 ppb (6) N/A 1.1 μg/m3 (5) 17.0
 
Nov. 25, 2019, 3 a.m. N/A N/A N/A 25.0 ppb (23) N/A N/A 14.0 ppb (11) 0.57 ppb (6) N/A 1.7 μg/m3 (7) 23.0
 
Nov. 25, 2019, 2 a.m. N/A N/A N/A 15.0 ppb (14) N/A N/A 23.0 ppb (18) 0.6 ppb (7) N/A 1.0 μg/m3 (4) 18.0
 
Nov. 25, 2019, 1 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 33.0 ppb (25) 0.41 ppb (5) N/A 0.1 μg/m3 (0) 25.0
 
Nov. 25, 2019, midnight N/A N/A N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) 0.39 ppb (4) N/A 0.0 μg/m3 (0) 28.0
 
Nov. 24, 2019, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) 0.38 ppb (4) N/A -0.2 μg/m3 (0) 29.0
 
Nov. 24, 2019, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) 0.37 ppb (4) N/A -0.2 μg/m3 (0) 31.0
 
Nov. 24, 2019, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) 0.37 ppb (4) N/A -0.3 μg/m3 (0) 32.0
 
Nov. 24, 2019, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) 0.36 ppb (4) N/A -0.2 μg/m3 (0) 32.0
 
Nov. 24, 2019, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.36 ppb (4) N/A -0.1 μg/m3 (0) 34.0
 
Nov. 24, 2019, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.36 ppb (4) N/A -0.1 μg/m3 (0) 34.0
 
Nov. 24, 2019, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 40.0 ppb (31) 0.39 ppb (4) N/A -0.2 μg/m3 (0) 31.0
 
Nov. 24, 2019, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) 0.37 ppb (4) N/A -0.2 μg/m3 (0) 31.0
 
Nov. 24, 2019, 3 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 40.0 ppb (31) 0.37 ppb (4) N/A -0.2 μg/m3 (0) 31.0
 
Nov. 24, 2019, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) 0.37 ppb (4) N/A -0.4 μg/m3 (0) 32.0
 
Nov. 24, 2019, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) 0.37 ppb (4) N/A -0.4 μg/m3 (0) 27.0
 
Nov. 24, 2019, noon N/A N/A N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) 0.36 ppb (4) N/A -0.5 μg/m3 (0) 26.0
 
Nov. 24, 2019, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 39.0 ppb (30) 0.36 ppb (4) N/A -0.5 μg/m3 (0) 30.0
 
Nov. 24, 2019, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A -0.5 μg/m3 (0) 2.0
 
Nov. 24, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.36 ppb (4) N/A -0.4 μg/m3 (0) 29.0
 
Nov. 24, 2019, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) 0.36 ppb (4) N/A -0.4 μg/m3 (0) 29.0
 
Nov. 24, 2019, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) 0.36 ppb (4) N/A -0.4 μg/m3 (0) 32.0
 
Nov. 24, 2019, 6 a.m. N/A N/A N/A 21.0 ppb (19) N/A N/A 22.0 ppb (17) 0.5 ppb (6) N/A 1.1 μg/m3 (5) 19.0
 
Nov. 24, 2019, 5 a.m. N/A N/A N/A 13.0 ppb (12) N/A N/A 27.0 ppb (21) 0.46 ppb (5) N/A 0.5 μg/m3 (2) 21.0
 
Nov. 24, 2019, 4 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 37.0 ppb (28) 0.39 ppb (4) N/A -0.1 μg/m3 (0) 28.0
 
Nov. 24, 2019, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) 0.37 ppb (4) N/A -0.1 μg/m3 (0) 31.0
 
Nov. 24, 2019, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) 0.37 ppb (4) N/A 0.0 μg/m3 (0) 31.0
 
Nov. 24, 2019, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) 0.36 ppb (4) N/A 0.0 μg/m3 (0) 32.0
 
Nov. 24, 2019, midnight N/A N/A N/A 5.0 ppb (5) N/A N/A 37.0 ppb (28) 0.4 ppb (4) N/A 0.4 μg/m3 (2) 28.0
 
Nov. 23, 2019, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 36.0 ppb (28) 0.42 ppb (5) N/A 0.3 μg/m3 (1) 28.0
 
Nov. 23, 2019, 10 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 34.0 ppb (26) 0.41 ppb (5) N/A 0.4 μg/m3 (2) 26.0
 
Nov. 23, 2019, 9 p.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 34.0 ppb (26) 0.41 ppb (5) N/A 0.8 μg/m3 (3) 26.0
 
Nov. 23, 2019, 8 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 39.0 ppb (30) 0.39 ppb (4) N/A 0.6 μg/m3 (2) 30.0
 
Nov. 23, 2019, 7 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 40.0 ppb (31) 0.38 ppb (4) N/A 0.2 μg/m3 (1) 31.0
 
Nov. 23, 2019, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) 0.36 ppb (4) N/A 0.2 μg/m3 (1) 32.0
 
Nov. 23, 2019, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) 0.36 ppb (4) N/A -0.1 μg/m3 (0) 32.0
 
Nov. 23, 2019, 4 p.m. N/A N/A N/A 13.0 ppb (12) N/A N/A 32.0 ppb (25) 0.38 ppb (4) N/A 0.2 μg/m3 (1) 25.0
 
Nov. 23, 2019, 3 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A 35.0 ppb (27) 0.4 ppb (4) N/A 0.1 μg/m3 (0) 27.0
 
Nov. 23, 2019, 2 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 39.0 ppb (30) 0.35 ppb (4) N/A -0.1 μg/m3 (0) 30.0
 
Nov. 23, 2019, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 42.0 ppb (32) 0.35 ppb (4) N/A -0.2 μg/m3 (0) 32.0
 
Nov. 23, 2019, noon N/A N/A N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.34 ppb (4) N/A -0.2 μg/m3 (0) 35.0
 
Nov. 23, 2019, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) 0.34 ppb (4) N/A -0.2 μg/m3 (0) 36.0
 
Nov. 23, 2019, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A -0.1 μg/m3 (0) 3.0
 
Nov. 23, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.37 ppb (4) N/A -0.1 μg/m3 (0) 32.0
 
Nov. 23, 2019, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 43.0 ppb (33) 0.36 ppb (4) N/A -0.1 μg/m3 (0) 33.0
 
Nov. 23, 2019, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 44.0 ppb (34) 0.35 ppb (4) N/A -0.2 μg/m3 (0) 34.0
 
Nov. 23, 2019, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 45.0 ppb (35) 0.35 ppb (4) N/A -0.3 μg/m3 (0) 35.0
 
Nov. 23, 2019, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) 0.34 ppb (4) N/A -0.2 μg/m3 (0) 34.0
 
Nov. 23, 2019, 4 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 43.0 ppb (33) 0.35 ppb (4) N/A -0.1 μg/m3 (0) 33.0
 
Nov. 23, 2019, 3 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 40.0 ppb (31) 0.37 ppb (4) N/A 0.3 μg/m3 (1) 31.0
 
Nov. 23, 2019, 2 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 38.0 ppb (29) 0.39 ppb (4) N/A 0.7 μg/m3 (3) 29.0
 
Nov. 23, 2019, 1 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A 31.0 ppb (24) 0.49 ppb (5) N/A 1.4 μg/m3 (6) 24.0
 
Nov. 23, 2019, midnight N/A N/A N/A 37.0 ppb (34) N/A N/A 14.0 ppb (11) 0.62 ppb (7) N/A 1.7 μg/m3 (7) 34.0
 
Nov. 22, 2019, 11 p.m. N/A N/A N/A 39.0 ppb (36) N/A N/A 13.0 ppb (10) 0.51 ppb (6) N/A 2.3 μg/m3 (10) 36.0
 
Nov. 22, 2019, 10 p.m. N/A N/A N/A 17.0 ppb (16) N/A N/A 33.0 ppb (25) 0.43 ppb (5) N/A 1.8 μg/m3 (8) 25.0
 
Nov. 22, 2019, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 45.0 ppb (35) 0.36 ppb (4) N/A 0.8 μg/m3 (3) 35.0
 
Nov. 22, 2019, 8 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A 41.0 ppb (32) 0.38 ppb (4) N/A 0.6 μg/m3 (2) 32.0
 
Nov. 22, 2019, 7 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A 38.0 ppb (29) 0.38 ppb (4) N/A 0.7 μg/m3 (3) 29.0
 
Nov. 22, 2019, 6 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A 37.0 ppb (28) 0.39 ppb (4) N/A 0.7 μg/m3 (3) 28.0
 
Nov. 22, 2019, 5 p.m. N/A N/A N/A 13.0 ppb (12) N/A N/A 33.0 ppb (25) 0.4 ppb (4) N/A 0.8 μg/m3 (3) 25.0
 
Nov. 22, 2019, 4 p.m. N/A N/A N/A 17.0 ppb (16) N/A N/A 27.0 ppb (21) 0.39 ppb (4) N/A 1.1 μg/m3 (5) 21.0
 
Nov. 22, 2019, 3 p.m. N/A N/A N/A 16.0 ppb (15) N/A N/A 28.0 ppb (22) 0.38 ppb (4) N/A 0.6 μg/m3 (2) 22.0
 
Nov. 22, 2019, 1 p.m. N/A N/A N/A 14.0 ppb (13) N/A N/A 25.0 ppb (19) 0.37 ppb (4) N/A 0.4 μg/m3 (2) 19.0
 
Nov. 22, 2019, noon N/A N/A N/A 16.0 ppb (15) N/A N/A 21.0 ppb (16) 0.35 ppb (4) N/A 0.3 μg/m3 (1) 16.0