ID: 1295

AQSQID: 000090222

Site Name: Calgary Northwest

Added: April 21, 2020, 6:24 p.m.

Updated: Oct. 24, 2020, 8:38 p.m.

Location: Calgary (Varsity Acres), CC

Reporting: True, Located: True

Current AQI: 23.0

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
Oct. 10, 2020, 11 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 25.0 ppb (24) 0.27 ppb (4) N/A 2.6 μg/m3 (11) 19.0
 
Oct. 10, 2020, 10 a.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
 
Oct. 10, 2020, 9 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 25.0 ppb (24) 0.27 ppb (4) N/A 2.1 μg/m3 (9) 19.0
 
Oct. 10, 2020, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 26.0 ppb (25) 0.27 ppb (4) N/A 2.3 μg/m3 (10) 20.0
 
Oct. 10, 2020, 7 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 25.0 ppb (24) 0.28 ppb (4) N/A 2.6 μg/m3 (11) 19.0
 
Oct. 10, 2020, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 27.0 ppb (25) 0.29 ppb (4) N/A 2.9 μg/m3 (13) 21.0
 
Oct. 10, 2020, 5 a.m. N/A N/A N/A 14.0 ppb (14) N/A N/A 14.0 ppb (13) 0.45 ppb (6) N/A 6.6 μg/m3 (28) 28.0
 
Oct. 10, 2020, 4 a.m. N/A N/A N/A 26.0 ppb (25) N/A N/A 1.0 ppb (1) 0.74 ppb (8) N/A 16.9 μg/m3 (62) 60.0
 
Oct. 10, 2020, 3 a.m. N/A N/A N/A 25.0 ppb (24) N/A N/A 1.0 ppb (1) 0.76 ppb (10) N/A 15.6 μg/m3 (59) 58.0
 
Oct. 10, 2020, 2 a.m. N/A N/A N/A 26.0 ppb (25) N/A N/A 1.0 ppb (1) 0.65 ppb (8) N/A 16.4 μg/m3 (61) 59.0
 
Oct. 10, 2020, 1 a.m. N/A N/A N/A 24.0 ppb (23) N/A N/A 2.0 ppb (2) 0.53 ppb (6) N/A 12.5 μg/m3 (52) 51.0
 
Oct. 10, 2020, midnight N/A N/A N/A 20.0 ppb (19) N/A N/A 7.0 ppb (7) 0.46 ppb (6) N/A 10.5 μg/m3 (44) 44.0
 
Oct. 9, 2020, 11 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A 13.0 ppb (13) 0.42 ppb (5) N/A 10.6 μg/m3 (45) 44.0
 
Oct. 9, 2020, 10 p.m. N/A N/A N/A 11.0 ppb (11) N/A N/A 16.0 ppb (15) 0.39 ppb (5) N/A 11.2 μg/m3 (47) 47.0
 
Oct. 9, 2020, 9 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 19.0 ppb (18) 0.37 ppb (5) N/A 10.4 μg/m3 (44) 43.0
 
Oct. 9, 2020, 8 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 20.0 ppb (19) 0.37 ppb (5) N/A 9.1 μg/m3 (38) 38.0
 
Oct. 9, 2020, 7 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 22.0 ppb (21) 0.35 ppb (4) N/A 7.4 μg/m3 (31) 31.0
 
Oct. 9, 2020, 6 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 24.0 ppb (23) 0.34 ppb (4) N/A 6.7 μg/m3 (28) 28.0
 
Oct. 9, 2020, 5 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 25.0 ppb (24) 0.33 ppb (4) N/A 5.8 μg/m3 (25) 24.0
 
Oct. 9, 2020, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 27.0 ppb (25) 0.32 ppb (4) N/A 4.4 μg/m3 (19) 21.0
 
Oct. 9, 2020, 3 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 23.0 ppb (22) 0.35 ppb (4) N/A 4.3 μg/m3 (18) 18.0
 
Oct. 9, 2020, 2 p.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 22.0 ppb (21) 0.34 ppb (4) N/A 3.4 μg/m3 (15) 17.0
 
Oct. 9, 2020, 1 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A 21.0 ppb (20) 0.33 ppb (4) N/A 3.5 μg/m3 (15) 16.0
 
Oct. 9, 2020, noon N/A N/A N/A 8.0 ppb (8) N/A N/A 24.0 ppb (23) 0.32 ppb (4) N/A 2.4 μg/m3 (10) 18.0
 
Oct. 9, 2020, 11 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 22.0 ppb (21) 0.31 ppb (4) N/A 3.7 μg/m3 (16) 17.0
 
Oct. 9, 2020, 10 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
 
Oct. 9, 2020, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 28.0 ppb (26) 0.3 ppb (4) N/A 2.6 μg/m3 (11) 22.0
 
Oct. 9, 2020, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 25.0 ppb (24) 0.3 ppb (4) N/A 1.7 μg/m3 (8) 19.0
 
Oct. 9, 2020, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 27.0 ppb (25) 0.3 ppb (4) N/A 2.2 μg/m3 (10) 21.0
 
Oct. 9, 2020, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) 0.3 ppb (4) N/A 1.6 μg/m3 (7) 23.0
 
Oct. 9, 2020, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 24.0 ppb (23) 0.31 ppb (4) N/A 3.7 μg/m3 (16) 18.0
 
Oct. 9, 2020, 4 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 22.0 ppb (21) 0.32 ppb (4) N/A 4.1 μg/m3 (18) 17.0
 
Oct. 9, 2020, 3 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 21.0 ppb (20) 0.33 ppb (4) N/A 4.3 μg/m3 (18) 18.0
 
Oct. 9, 2020, 2 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 22.0 ppb (21) 0.33 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
Oct. 9, 2020, 1 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 23.0 ppb (22) 0.33 ppb (4) N/A 3.6 μg/m3 (16) 18.0
 
Oct. 9, 2020, midnight N/A N/A N/A 4.0 ppb (4) N/A N/A 27.0 ppb (25) 0.31 ppb (4) N/A 3.1 μg/m3 (13) 21.0
 
Oct. 8, 2020, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 27.0 ppb (25) 0.31 ppb (4) N/A 4.4 μg/m3 (19) 21.0
 
Oct. 8, 2020, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 28.0 ppb (26) 0.31 ppb (4) N/A 4.7 μg/m3 (20) 22.0
 
Oct. 8, 2020, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 29.0 ppb (27) 0.3 ppb (4) N/A 4.1 μg/m3 (18) 22.0
 
Oct. 8, 2020, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 27.0 ppb (25) 0.31 ppb (4) N/A 4.0 μg/m3 (17) 21.0
 
Oct. 8, 2020, 7 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 22.0 ppb (21) 0.33 ppb (4) N/A 6.4 μg/m3 (27) 27.0
 
Oct. 8, 2020, 6 p.m. N/A N/A N/A 16.0 ppb (16) N/A N/A 9.0 ppb (9) 0.44 ppb (5) N/A 10.6 μg/m3 (45) 44.0
 
Oct. 8, 2020, 5 p.m. N/A N/A N/A 20.0 ppb (19) N/A N/A 4.0 ppb (4) 0.59 ppb (7) N/A 12.4 μg/m3 (52) 51.0
 
Oct. 8, 2020, 4 p.m. N/A N/A N/A 17.0 ppb (17) N/A N/A 5.0 ppb (5) 0.44 ppb (5) N/A 10.9 μg/m3 (46) 45.0
 
Oct. 8, 2020, 3 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A 5.0 ppb (5) 0.44 ppb (5) N/A 10.3 μg/m3 (43) 43.0
 
Oct. 8, 2020, 2 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A 5.0 ppb (5) 0.45 ppb (6) N/A 10.1 μg/m3 (43) 42.0
 
Oct. 8, 2020, 1 p.m. N/A N/A N/A 15.0 ppb (15) N/A N/A 9.0 ppb (9) 0.36 ppb (5) N/A 9.8 μg/m3 (41) 41.0
 
Oct. 8, 2020, noon N/A N/A N/A 15.0 ppb (15) N/A N/A 11.0 ppb (11) 0.33 ppb (4) N/A 8.0 μg/m3 (34) 33.0
 
Oct. 8, 2020, 11 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 18.0 ppb (17) 0.3 ppb (4) N/A 6.6 μg/m3 (28) 28.0
 
Oct. 8, 2020, 10 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
 
Oct. 8, 2020, 9 a.m. N/A N/A N/A 20.0 ppb (19) N/A N/A 11.0 ppb (11) 0.33 ppb (4) N/A 6.3 μg/m3 (27) 26.0
 
Oct. 8, 2020, 8 a.m. N/A N/A N/A 14.0 ppb (14) N/A N/A 16.0 ppb (15) 0.33 ppb (4) N/A 5.2 μg/m3 (22) 22.0
 
Oct. 8, 2020, 7 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 21.0 ppb (20) 0.33 ppb (4) N/A 5.7 μg/m3 (24) 24.0
 
Oct. 8, 2020, 6 a.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 27.0 ppb (25) 0.3 ppb (4) N/A 5.5 μg/m3 (23) 23.0
 
Oct. 8, 2020, 5 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 30.0 ppb (28) 0.3 ppb (4) N/A 5.8 μg/m3 (25) 24.0
 
Oct. 8, 2020, 4 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 32.0 ppb (30) 0.29 ppb (4) N/A 6.2 μg/m3 (26) 26.0
 
Oct. 8, 2020, 3 a.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 32.0 ppb (30) 0.3 ppb (4) N/A 7.0 μg/m3 (30) 29.0
 
Oct. 8, 2020, 2 a.m. N/A N/A N/A 13.0 ppb (13) N/A N/A 30.0 ppb (28) 0.31 ppb (4) N/A 7.6 μg/m3 (32) 32.0
 
Oct. 8, 2020, 1 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 32.0 ppb (30) 0.31 ppb (4) N/A 10.2 μg/m3 (43) 42.0
 
Oct. 8, 2020, midnight N/A N/A N/A 6.0 ppb (6) N/A N/A 37.0 ppb (35) 0.3 ppb (4) N/A 9.8 μg/m3 (41) 41.0
 
Oct. 7, 2020, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) 0.3 ppb (4) N/A 6.6 μg/m3 (28) 32.0
 
Oct. 7, 2020, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) 0.3 ppb (4) N/A 5.0 μg/m3 (21) 32.0
 
Oct. 7, 2020, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) 0.3 ppb (4) N/A 5.0 μg/m3 (21) 31.0
 
Oct. 7, 2020, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) 0.3 ppb (4) N/A 4.9 μg/m3 (21) 31.0
 
Oct. 7, 2020, 7 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 37.0 ppb (35) 0.31 ppb (4) N/A 5.6 μg/m3 (24) 28.0
 
Oct. 7, 2020, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) 0.31 ppb (4) N/A 5.3 μg/m3 (23) 28.0
 
Oct. 7, 2020, 5 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 29.0 ppb (27) 0.34 ppb (4) N/A 6.1 μg/m3 (26) 25.0
 
Oct. 7, 2020, 4 p.m. N/A N/A N/A 20.0 ppb (19) N/A N/A 17.0 ppb (16) 0.39 ppb (5) N/A 8.3 μg/m3 (35) 35.0
 
Oct. 7, 2020, 3 p.m. N/A N/A N/A 25.0 ppb (24) N/A N/A 9.0 ppb (9) 0.46 ppb (6) N/A 9.3 μg/m3 (39) 39.0
 
Oct. 7, 2020, 2 p.m. N/A N/A N/A 26.0 ppb (25) N/A N/A 3.0 ppb (3) 0.45 ppb (6) N/A 8.1 μg/m3 (34) 34.0
 
Oct. 7, 2020, 1 p.m. N/A N/A N/A 16.0 ppb (16) N/A N/A 6.0 ppb (6) 0.35 ppb (4) N/A 5.9 μg/m3 (25) 25.0
 
Oct. 7, 2020, noon N/A N/A N/A 10.0 ppb (10) N/A N/A 14.0 ppb (13) 0.32 ppb (4) N/A 5.5 μg/m3 (23) 23.0
 
Oct. 7, 2020, 11 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A 14.0 ppb (13) 0.31 ppb (4) N/A 5.2 μg/m3 (22) 22.0
 
Oct. 7, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.8 μg/m3 (25) 24.0
 
Oct. 7, 2020, 9 a.m. N/A N/A N/A 15.0 ppb (15) N/A N/A 10.0 ppb (10) 0.34 ppb (4) N/A 4.8 μg/m3 (20) 20.0
 
Oct. 7, 2020, 8 a.m. N/A N/A N/A 22.0 ppb (21) N/A N/A 7.0 ppb (7) 0.37 ppb (5) N/A 4.9 μg/m3 (21) 20.0
 
Oct. 7, 2020, 7 a.m. N/A N/A N/A 23.0 ppb (22) N/A N/A 6.0 ppb (6) 0.41 ppb (5) N/A 5.2 μg/m3 (22) 22.0
 
Oct. 7, 2020, 6 a.m. N/A N/A N/A 21.0 ppb (20) N/A N/A 7.0 ppb (7) 0.43 ppb (5) N/A 4.8 μg/m3 (20) 20.0
 
Oct. 7, 2020, 5 a.m. N/A N/A N/A 19.0 ppb (18) N/A N/A 11.0 ppb (11) 0.43 ppb (5) N/A 4.6 μg/m3 (20) 19.0
 
Oct. 7, 2020, 4 a.m. N/A N/A N/A 16.0 ppb (16) N/A N/A 18.0 ppb (17) 0.4 ppb (5) N/A 4.7 μg/m3 (20) 20.0
 
Oct. 7, 2020, 3 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 26.0 ppb (25) 0.34 ppb (4) N/A 5.4 μg/m3 (23) 23.0
 
Oct. 7, 2020, 2 a.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 29.0 ppb (27) 0.32 ppb (4) N/A 3.4 μg/m3 (15) 22.0
 
Oct. 7, 2020, 1 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 31.0 ppb (29) 0.32 ppb (4) N/A 3.2 μg/m3 (14) 24.0
 
Oct. 7, 2020, midnight N/A N/A N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) 0.3 ppb (4) N/A 3.4 μg/m3 (15) 26.0
 
Oct. 6, 2020, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 35.0 ppb (33) 0.3 ppb (4) N/A 3.8 μg/m3 (16) 27.0
 
Oct. 6, 2020, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) 0.3 ppb (4) N/A 4.3 μg/m3 (18) 28.0
 
Oct. 6, 2020, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 35.0 ppb (33) 0.29 ppb (4) N/A 4.3 μg/m3 (18) 27.0
 
Oct. 6, 2020, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 34.0 ppb (32) 0.29 ppb (4) N/A 4.0 μg/m3 (17) 26.0
 
Oct. 6, 2020, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 32.0 ppb (30) 0.29 ppb (4) N/A 4.0 μg/m3 (17) 25.0
 
Oct. 6, 2020, 6 p.m. N/A N/A N/A 12.0 ppb (12) N/A N/A 25.0 ppb (24) 0.32 ppb (4) N/A 4.8 μg/m3 (20) 20.0
 
Oct. 6, 2020, 5 p.m. N/A N/A N/A 13.0 ppb (13) N/A N/A 25.0 ppb (24) 0.33 ppb (4) N/A 4.1 μg/m3 (18) 19.0
 
Oct. 6, 2020, 4 p.m. N/A N/A N/A 13.0 ppb (13) N/A N/A 23.0 ppb (22) 0.35 ppb (4) N/A 4.2 μg/m3 (18) 18.0
 
Oct. 6, 2020, 3 p.m. N/A N/A N/A 17.0 ppb (17) N/A N/A 18.0 ppb (17) 0.36 ppb (5) N/A 4.3 μg/m3 (18) 18.0
 
Oct. 6, 2020, 2 p.m. N/A N/A N/A 23.0 ppb (22) N/A N/A 10.0 ppb (10) 0.39 ppb (5) N/A 5.5 μg/m3 (23) 23.0
 
Oct. 6, 2020, 1 p.m. N/A N/A N/A 22.0 ppb (21) N/A N/A 10.0 ppb (10) 0.37 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 6, 2020, noon N/A N/A N/A 10.0 ppb (10) N/A N/A 21.0 ppb (20) 0.32 ppb (4) N/A 6.9 μg/m3 (29) 29.0
 
Oct. 6, 2020, 11 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 26.0 ppb (25) 0.31 ppb (4) N/A 8.1 μg/m3 (34) 34.0
 
Oct. 6, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.9 μg/m3 (38) 37.0
 
Oct. 6, 2020, 9 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 25.0 ppb (24) 0.33 ppb (4) N/A 8.8 μg/m3 (37) 37.0
 
Oct. 6, 2020, 8 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 18.0 ppb (17) 0.33 ppb (4) N/A 7.5 μg/m3 (32) 31.0
 
Oct. 6, 2020, 7 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A 15.0 ppb (14) 0.32 ppb (4) N/A 3.5 μg/m3 (15) 15.0
 
Oct. 6, 2020, 6 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 22.0 ppb (21) 0.31 ppb (4) N/A 2.8 μg/m3 (12) 17.0
 
Oct. 6, 2020, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 26.0 ppb (25) 0.28 ppb (4) N/A 2.7 μg/m3 (12) 20.0
 
Oct. 6, 2020, 4 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 25.0 ppb (24) 0.28 ppb (4) N/A 2.5 μg/m3 (11) 19.0
 
Oct. 6, 2020, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 29.0 ppb (27) 0.27 ppb (4) N/A 2.5 μg/m3 (11) 22.0
 
Oct. 6, 2020, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 31.0 ppb (29) 0.27 ppb (4) N/A 2.5 μg/m3 (11) 24.0
 
Oct. 6, 2020, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 31.0 ppb (29) 0.28 ppb (4) N/A 2.7 μg/m3 (12) 24.0
 
Oct. 6, 2020, midnight N/A N/A N/A 2.0 ppb (2) N/A N/A 31.0 ppb (29) 0.28 ppb (4) N/A 3.0 μg/m3 (13) 24.0
 
Oct. 5, 2020, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 30.0 ppb (28) 0.28 ppb (4) N/A 3.0 μg/m3 (13) 23.0
 
Oct. 5, 2020, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 31.0 ppb (29) 0.28 ppb (4) N/A 2.9 μg/m3 (13) 24.0
 
Oct. 5, 2020, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) 0.28 ppb (4) N/A 3.3 μg/m3 (14) 25.0
 
Oct. 5, 2020, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) 0.28 ppb (4) N/A 2.9 μg/m3 (13) 28.0
 
Oct. 5, 2020, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) 0.29 ppb (4) N/A 3.6 μg/m3 (16) 28.0
 
Oct. 5, 2020, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 34.0 ppb (32) 0.31 ppb (4) N/A 5.2 μg/m3 (22) 26.0
 
Oct. 5, 2020, 5 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) 0.32 ppb (4) N/A 5.9 μg/m3 (25) 25.0
 
Oct. 5, 2020, 4 p.m. N/A N/A N/A 11.0 ppb (11) N/A N/A 19.0 ppb (18) 0.36 ppb (5) N/A 7.2 μg/m3 (31) 30.0
 
Oct. 5, 2020, 3 p.m. N/A N/A N/A 13.0 ppb (13) N/A N/A 6.0 ppb (6) 0.42 ppb (5) N/A 7.9 μg/m3 (33) 33.0
 
Oct. 5, 2020, 2 p.m. N/A N/A N/A 13.0 ppb (13) N/A N/A 2.0 ppb (2) 0.4 ppb (5) N/A 5.1 μg/m3 (22) 21.0
 
Oct. 5, 2020, 1 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A 1.0 ppb (1) 0.37 ppb (5) N/A 5.8 μg/m3 (25) 24.0
 
Oct. 5, 2020, noon N/A N/A N/A 11.0 ppb (11) N/A N/A 5.0 ppb (5) 0.35 ppb (4) N/A 10.7 μg/m3 (45) 45.0
 
Oct. 5, 2020, 11 a.m. N/A N/A N/A 11.0 ppb (11) N/A N/A 5.0 ppb (5) 0.34 ppb (4) N/A 11.3 μg/m3 (48) 47.0
 
Oct. 5, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.3 μg/m3 (48) 47.0
 
Oct. 5, 2020, 9 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 15.0 ppb (14) 0.32 ppb (4) N/A 12.1 μg/m3 (51) 50.0
 
Oct. 5, 2020, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 19.0 ppb (18) 0.32 ppb (4) N/A 9.2 μg/m3 (39) 38.0
 
Oct. 5, 2020, 7 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 19.0 ppb (18) 0.33 ppb (4) N/A 8.9 μg/m3 (38) 37.0
 
Oct. 5, 2020, 6 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 22.0 ppb (21) 0.34 ppb (4) N/A 9.3 μg/m3 (39) 39.0
 
Oct. 5, 2020, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 23.0 ppb (22) 0.34 ppb (4) N/A 9.2 μg/m3 (39) 38.0
 
Oct. 5, 2020, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 26.0 ppb (25) 0.34 ppb (4) N/A 10.2 μg/m3 (43) 42.0
 
Oct. 5, 2020, 3 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 22.0 ppb (21) 0.35 ppb (4) N/A 12.4 μg/m3 (52) 51.0
 
Oct. 5, 2020, 2 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 24.0 ppb (23) 0.35 ppb (4) N/A 13.0 μg/m3 (53) 52.0
 
Oct. 5, 2020, 1 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 27.0 ppb (25) 0.35 ppb (4) N/A 13.7 μg/m3 (55) 54.0
 
Oct. 5, 2020, midnight N/A N/A N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) 0.35 ppb (4) N/A 14.2 μg/m3 (56) 55.0
 
Oct. 4, 2020, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 30.0 ppb (28) 0.34 ppb (4) N/A 13.2 μg/m3 (54) 53.0
 
Oct. 4, 2020, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 30.0 ppb (28) 0.34 ppb (4) N/A 13.3 μg/m3 (54) 53.0
 
Oct. 4, 2020, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 30.0 ppb (28) 0.33 ppb (4) N/A 12.7 μg/m3 (53) 51.0
 
Oct. 4, 2020, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 29.0 ppb (27) 0.32 ppb (4) N/A 11.5 μg/m3 (48) 48.0
 
Oct. 4, 2020, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 30.0 ppb (28) 0.32 ppb (4) N/A 10.5 μg/m3 (44) 44.0
 
Oct. 4, 2020, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) 0.31 ppb (4) N/A 12.5 μg/m3 (52) 51.0
 
Oct. 4, 2020, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 30.0 ppb (28) 0.32 ppb (4) N/A 12.8 μg/m3 (53) 52.0
 
Oct. 4, 2020, 4 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 24.0 ppb (23) 0.33 ppb (4) N/A 12.4 μg/m3 (52) 51.0
 
Oct. 4, 2020, 3 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 22.0 ppb (21) 0.32 ppb (4) N/A 10.9 μg/m3 (46) 45.0
 
Oct. 4, 2020, 2 p.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 20.0 ppb (19) 0.32 ppb (4) N/A 9.9 μg/m3 (42) 41.0
 
Oct. 4, 2020, 1 p.m. N/A N/A N/A 12.0 ppb (12) N/A N/A 19.0 ppb (18) 0.3 ppb (4) N/A 9.3 μg/m3 (39) 39.0
 
Oct. 4, 2020, noon N/A N/A N/A 12.0 ppb (12) N/A N/A 19.0 ppb (18) 0.3 ppb (4) N/A 8.2 μg/m3 (35) 34.0
 
Oct. 4, 2020, 11 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 21.0 ppb (20) 0.29 ppb (4) N/A 7.6 μg/m3 (32) 32.0
 
Oct. 4, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.3 μg/m3 (35) 35.0
 
Oct. 4, 2020, 9 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 20.0 ppb (19) 0.29 ppb (4) N/A 9.2 μg/m3 (39) 38.0
 
Oct. 4, 2020, 8 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 21.0 ppb (20) 0.29 ppb (4) N/A 10.7 μg/m3 (45) 45.0
 
Oct. 4, 2020, 7 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 24.0 ppb (23) 0.33 ppb (4) N/A 13.6 μg/m3 (55) 53.0
 
Oct. 4, 2020, 6 a.m. N/A N/A N/A 14.0 ppb (14) N/A N/A 16.0 ppb (15) 0.41 ppb (5) N/A 19.3 μg/m3 (67) 66.0
 
Oct. 4, 2020, 5 a.m. N/A N/A N/A 15.0 ppb (15) N/A N/A 15.0 ppb (14) 0.5 ppb (6) N/A 21.0 μg/m3 (70) 69.0
 
Oct. 4, 2020, 4 a.m. N/A N/A N/A 20.0 ppb (19) N/A N/A 13.0 ppb (13) 0.57 ppb (7) N/A 21.8 μg/m3 (72) 71.0
 
Oct. 4, 2020, 3 a.m. N/A N/A N/A 13.0 ppb (13) N/A N/A 23.0 ppb (22) 0.44 ppb (5) N/A 18.8 μg/m3 (66) 64.0
 
Oct. 4, 2020, 2 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 28.0 ppb (26) 0.38 ppb (5) N/A 17.1 μg/m3 (62) 61.0
 
Oct. 4, 2020, 1 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 34.0 ppb (32) 0.33 ppb (4) N/A 13.8 μg/m3 (55) 54.0
 
Oct. 4, 2020, midnight N/A N/A N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) 0.3 ppb (4) N/A 10.8 μg/m3 (46) 45.0
 
Oct. 3, 2020, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) 0.29 ppb (4) N/A 10.5 μg/m3 (44) 44.0
 
Oct. 3, 2020, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 42.0 ppb (39) 0.3 ppb (4) N/A 9.6 μg/m3 (40) 40.0
 
Oct. 3, 2020, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 40.0 ppb (38) 0.31 ppb (4) N/A 9.8 μg/m3 (41) 41.0
 
Oct. 3, 2020, 8 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 35.0 ppb (33) 0.34 ppb (4) N/A 9.4 μg/m3 (40) 39.0
 
Oct. 3, 2020, 7 p.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 29.0 ppb (27) 0.37 ppb (5) N/A 8.7 μg/m3 (37) 36.0
 
Oct. 3, 2020, 6 p.m. N/A N/A N/A 13.0 ppb (13) N/A N/A 19.0 ppb (18) 0.39 ppb (5) N/A 11.9 μg/m3 (50) 50.0
 
Oct. 3, 2020, 5 p.m. N/A N/A N/A 9.0 ppb (9) N/A N/A 17.0 ppb (16) 0.36 ppb (5) N/A 16.1 μg/m3 (60) 59.0
 
Oct. 3, 2020, 4 p.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 11.0 ppb (11) 0.4 ppb (5) N/A 24.0 μg/m3 (77) 76.0
 
Oct. 3, 2020, 3 p.m. N/A N/A N/A 9.0 ppb (9) N/A N/A 7.0 ppb (7) 0.38 ppb (5) N/A 22.7 μg/m3 (74) 73.0
 
Oct. 3, 2020, 1 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 6.0 ppb (6) 0.31 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Oct. 3, 2020, noon N/A N/A N/A 6.0 ppb (6) N/A N/A 7.0 ppb (7) 0.28 ppb (4) N/A 9.1 μg/m3 (38) 38.0
 
Oct. 3, 2020, 11 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 7.0 ppb (7) 0.27 ppb (4) N/A 8.1 μg/m3 (34) 34.0