ID: 1170

AQSQID: 000101701

Site Name: Quesnel Senior Secondary

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

Updated: Aug. 1, 2021, 3:54 a.m.

Location: Quesnel (Callanan St), CC

Reporting: False, Located: True

Current AQI: None

Quesnel (Callanan St) CC, CA: 52.9822, -122.4922

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 21, 2021, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A 4.0 ppb (6) 25.0 ppb (24) N/A N/A 4.2 μg/m3 (18) 24.0
 
July 21, 2021, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 2.4 μg/m3 (10) 21.0
 
July 21, 2021, 6 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 2.2 μg/m3 (10) 17.0
 
July 21, 2021, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 5.7 μg/m3 (24) 24.0
 
July 21, 2021, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 5.6 μg/m3 (24) 24.0
 
July 21, 2021, 2 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 4.6 μg/m3 (20) 20.0
 
July 21, 2021, 1 p.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A 4.6 μg/m3 (20) 20.0
 
July 21, 2021, noon N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 4.2 μg/m3 (18) 18.0
 
July 21, 2021, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 4.9 μg/m3 (21) 24.0
 
July 21, 2021, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 4.7 μg/m3 (20) 25.0
 
July 21, 2021, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 5.0 μg/m3 (21) 26.0
 
July 21, 2021, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 5.5 μg/m3 (23) 28.0
 
July 21, 2021, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 6.1 μg/m3 (26) 26.0
 
July 21, 2021, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 6.3 μg/m3 (27) 28.0
 
July 21, 2021, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 5.7 μg/m3 (24) 28.0
 
July 21, 2021, 4 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 4.9 μg/m3 (21) 29.0
 
July 21, 2021, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 3.1 μg/m3 (13) 35.0
 
July 21, 2021, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 2.7 μg/m3 (12) 34.0
 
July 21, 2021, 1 a.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
 
July 21, 2021, midnight N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 3.7 μg/m3 (16) 34.0
 
July 20, 2021, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 4.3 μg/m3 (18) 31.0
 
July 20, 2021, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 4.3 μg/m3 (18) 29.0
 
July 20, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 4.3 μg/m3 (18) 28.0
 
July 20, 2021, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 4.3 μg/m3 (18) 27.0
 
July 20, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 4.3 μg/m3 (18) 27.0
 
July 20, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 4.3 μg/m3 (18) 29.0
 
July 20, 2021, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 32.0 ppb (30) N/A N/A 4.3 μg/m3 (18) 30.0
 
July 20, 2021, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 31.0 ppb (29) N/A N/A 4.3 μg/m3 (18) 29.0
 
July 20, 2021, 3 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 24.0 ppb (23) N/A N/A 5.3 μg/m3 (23) 23.0
 
July 20, 2021, 2 p.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A 5.3 μg/m3 (23) 23.0
 
July 20, 2021, 1 p.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 8.0 ppb (8) N/A N/A 4.7 μg/m3 (20) 20.0
 
July 20, 2021, noon N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 10.0 ppb (10) N/A N/A 4.5 μg/m3 (19) 19.0
 
July 20, 2021, 11 a.m. N/A N/A N/A 11.0 ppb (11) N/A 0.0 ppb (0) 9.0 ppb (9) N/A N/A 4.0 μg/m3 (17) 17.0
 
July 20, 2021, 10 a.m. N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A 3.8 μg/m3 (16) 16.0
 
July 20, 2021, 9 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 3.7 μg/m3 (16) 22.0
 
July 20, 2021, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 3.5 μg/m3 (15) 24.0
 
July 20, 2021, 7 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 3.7 μg/m3 (16) 23.0
 
July 20, 2021, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 3.6 μg/m3 (16) 26.0
 
July 20, 2021, 5 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 5.6 μg/m3 (24) 24.0
 
July 20, 2021, 4 a.m. N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 7.9 μg/m3 (33) 33.0
 
July 20, 2021, 3 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 7.3 μg/m3 (31) 33.0
 
July 20, 2021, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 7.0 μg/m3 (30) 38.0
 
July 20, 2021, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 6.2 μg/m3 (26) 37.0
 
July 20, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
July 19, 2021, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 6.7 μg/m3 (28) 33.0
 
July 19, 2021, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 6.6 μg/m3 (28) 31.0
 
July 19, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 7.6 μg/m3 (32) 32.0
 
July 19, 2021, 8 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 28.0 ppb (26) N/A N/A 7.8 μg/m3 (33) 33.0
 
July 19, 2021, 7 p.m. N/A N/A N/A 8.0 ppb (8) N/A 2.0 ppb (3) 28.0 ppb (26) N/A N/A 16.8 μg/m3 (61) 61.0
 
July 19, 2021, 6 p.m. N/A N/A N/A 10.0 ppb (10) N/A 3.0 ppb (5) 26.0 ppb (25) N/A N/A 25.3 μg/m3 (79) 79.0
 
July 19, 2021, 5 p.m. N/A N/A N/A 9.0 ppb (9) N/A 4.0 ppb (6) 23.0 ppb (22) N/A N/A 24.6 μg/m3 (78) 78.0
 
July 19, 2021, 4 p.m. N/A N/A N/A 10.0 ppb (10) N/A 2.0 ppb (3) 19.0 ppb (18) N/A N/A 31.0 μg/m3 (91) 91.0
 
July 19, 2021, 3 p.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 10.0 ppb (10) N/A N/A 27.7 μg/m3 (84) 84.0
 
July 19, 2021, 2 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 5.0 ppb (5) N/A N/A 11.6 μg/m3 (49) 49.0
 
July 19, 2021, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 4.0 ppb (4) N/A N/A 9.0 μg/m3 (38) 38.0
 
July 19, 2021, noon N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 3.0 ppb (3) N/A N/A 8.4 μg/m3 (36) 36.0
 
July 19, 2021, 11 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 3.0 ppb (3) N/A N/A 7.9 μg/m3 (33) 33.0
 
July 19, 2021, 10 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 4.0 ppb (4) N/A N/A 7.1 μg/m3 (30) 30.0
 
July 19, 2021, 9 a.m. N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 3.0 ppb (3) N/A N/A 8.3 μg/m3 (35) 35.0
 
July 19, 2021, 8 a.m. N/A N/A N/A 11.0 ppb (11) N/A 0.0 ppb (0) 3.0 ppb (3) N/A N/A 10.7 μg/m3 (45) 45.0
 
July 19, 2021, 7 a.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (2) 3.0 ppb (3) N/A N/A 9.0 μg/m3 (38) 38.0
 
July 19, 2021, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 6.7 μg/m3 (28) 28.0
 
July 19, 2021, 5 a.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) 10.0 ppb (10) N/A N/A 6.6 μg/m3 (28) 28.0
 
July 19, 2021, 4 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 6.5 μg/m3 (28) 28.0
 
July 19, 2021, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 6.5 μg/m3 (28) 28.0
 
July 19, 2021, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 6.8 μg/m3 (29) 29.0
 
July 19, 2021, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 8.1 μg/m3 (34) 34.0
 
July 19, 2021, midnight N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 8.5 μg/m3 (36) 36.0
 
July 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.9 μg/m3 (33) 33.0
 
July 18, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 8.1 μg/m3 (34) 34.0
 
July 18, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 7.7 μg/m3 (33) 33.0
 
July 18, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 7.6 μg/m3 (32) 32.0
 
July 18, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 17.0 ppb (16) N/A N/A 8.0 μg/m3 (34) 34.0
 
July 18, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 16.0 ppb (15) N/A N/A 9.1 μg/m3 (38) 38.0
 
July 18, 2021, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) 16.0 ppb (15) N/A N/A 8.5 μg/m3 (36) 36.0
 
July 18, 2021, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 15.0 ppb (14) N/A N/A 7.1 μg/m3 (30) 30.0
 
July 18, 2021, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 14.0 ppb (13) N/A N/A 5.5 μg/m3 (23) 23.0
 
July 18, 2021, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 14.0 ppb (13) N/A N/A 4.5 μg/m3 (19) 19.0
 
July 18, 2021, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A 4.7 μg/m3 (20) 20.0
 
July 18, 2021, noon N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 6.4 μg/m3 (27) 27.0
 
July 18, 2021, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A 8.1 μg/m3 (34) 34.0
 
July 18, 2021, 10 a.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) 7.0 ppb (7) N/A N/A 9.7 μg/m3 (41) 41.0
 
July 18, 2021, 9 a.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) 8.0 ppb (8) N/A N/A 10.1 μg/m3 (43) 43.0
 
July 18, 2021, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 9.0 μg/m3 (38) 38.0
 
July 18, 2021, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 7.5 μg/m3 (32) 32.0
 
July 18, 2021, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 7.7 μg/m3 (33) 33.0
 
July 18, 2021, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 8.9 μg/m3 (38) 38.0
 
July 18, 2021, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 11.3 μg/m3 (48) 48.0
 
July 18, 2021, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 29.0 ppb (27) N/A N/A 11.4 μg/m3 (48) 48.0
 
July 18, 2021, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 11.7 μg/m3 (49) 49.0
 
July 18, 2021, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 9.2 μg/m3 (39) 39.0
 
July 18, 2021, midnight N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 9.0 μg/m3 (38) 38.0
 
July 17, 2021, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 9.4 μg/m3 (40) 40.0
 
July 17, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.8 μg/m3 (37) 37.0
 
July 17, 2021, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 9.5 μg/m3 (40) 40.0
 
July 17, 2021, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 11.0 μg/m3 (46) 46.0
 
July 17, 2021, 7 p.m. N/A N/A N/A 6.0 ppb (6) N/A 3.0 ppb (5) 30.0 ppb (28) N/A N/A 14.9 μg/m3 (57) 57.0
 
July 17, 2021, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 14.2 μg/m3 (56) 56.0
 
July 17, 2021, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 16.0 μg/m3 (60) 60.0
 
July 17, 2021, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 15.3 μg/m3 (58) 58.0
 
July 17, 2021, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A 15.4 μg/m3 (58) 58.0
 
July 17, 2021, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 10.0 ppb (10) N/A N/A 14.2 μg/m3 (56) 56.0
 
July 17, 2021, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 10.0 ppb (10) N/A N/A 14.3 μg/m3 (56) 56.0
 
July 17, 2021, noon N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 9.0 ppb (9) N/A N/A 14.0 μg/m3 (55) 55.0
 
July 17, 2021, 11 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 7.0 ppb (7) N/A N/A 13.9 μg/m3 (55) 55.0
 
July 17, 2021, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 7.0 ppb (7) N/A N/A 13.7 μg/m3 (55) 55.0
 
July 17, 2021, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 10.0 ppb (10) N/A N/A 13.7 μg/m3 (55) 55.0
 
July 17, 2021, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 13.5 μg/m3 (54) 54.0
 
July 17, 2021, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 13.3 μg/m3 (54) 54.0
 
July 17, 2021, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 13.1 μg/m3 (54) 54.0
 
July 17, 2021, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 11.2 μg/m3 (47) 47.0
 
July 17, 2021, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 18.6 μg/m3 (65) 65.0
 
July 17, 2021, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 26.2 μg/m3 (81) 81.0
 
July 17, 2021, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 21.3 μg/m3 (71) 71.0
 
July 17, 2021, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 17.2 μg/m3 (62) 62.0
 
July 17, 2021, midnight N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 18.1 μg/m3 (64) 64.0
 
July 16, 2021, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 27.6 μg/m3 (84) 84.0
 
July 16, 2021, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 26.0 μg/m3 (81) 81.0
 
July 16, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 33.8 μg/m3 (97) 97.0
 
July 16, 2021, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 32.8 μg/m3 (95) 95.0
 
July 16, 2021, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 40.2 μg/m3 (113) 113.0
 
July 16, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 43.2 μg/m3 (120) 120.0
 
July 16, 2021, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 70.6 μg/m3 (159) 159.0
 
July 16, 2021, 4 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 14.0 ppb (13) N/A N/A 149.5 μg/m3 (200) 200.0
 
July 16, 2021, 3 p.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A 164.3 μg/m3 (215) 215.0
 
July 16, 2021, 2 p.m. N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 7.0 ppb (7) N/A N/A 152.5 μg/m3 (203) 203.0
 
July 16, 2021, 1 p.m. N/A N/A N/A 12.0 ppb (12) N/A 0.0 ppb (0) 4.0 ppb (4) N/A N/A 152.8 μg/m3 (204) 204.0
 
July 16, 2021, noon N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 6.0 ppb (6) N/A N/A 156.8 μg/m3 (208) 208.0
 
July 16, 2021, 11 a.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) 9.0 ppb (9) N/A N/A 156.1 μg/m3 (207) 207.0
 
July 16, 2021, 10 a.m. N/A N/A N/A 15.0 ppb (15) N/A 0.0 ppb (0) 6.0 ppb (6) N/A N/A 171.1 μg/m3 (222) 222.0
 
July 16, 2021, 9 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 168.5 μg/m3 (219) 219.0
 
July 16, 2021, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 159.0 μg/m3 (210) 210.0
 
July 16, 2021, 7 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 161.6 μg/m3 (212) 212.0
 
July 16, 2021, 6 a.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 156.9 μg/m3 (208) 208.0
 
July 16, 2021, 5 a.m. N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A 140.0 μg/m3 (195) 195.0
 
July 16, 2021, 4 a.m. N/A N/A N/A 14.0 ppb (14) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 136.0 μg/m3 (193) 193.0
 
July 16, 2021, 3 a.m. N/A N/A N/A 14.0 ppb (14) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 135.4 μg/m3 (193) 193.0
 
July 16, 2021, 2 a.m. N/A N/A N/A 14.0 ppb (14) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 123.5 μg/m3 (187) 187.0
 
July 16, 2021, 1 a.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 128.3 μg/m3 (189) 189.0
 
July 16, 2021, midnight N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 124.7 μg/m3 (187) 187.0
 
July 15, 2021, 11 p.m. N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 122.6 μg/m3 (186) 186.0
 
July 15, 2021, 10 p.m. N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 122.8 μg/m3 (186) 186.0
 
July 15, 2021, 9 p.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 126.3 μg/m3 (188) 188.0
 
July 15, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 101.1 μg/m3 (175) 175.0
 
July 15, 2021, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 71.1 μg/m3 (160) 160.0
 
July 15, 2021, 6 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 61.7 μg/m3 (155) 155.0
 
July 15, 2021, 5 p.m. N/A N/A N/A 12.0 ppb (12) N/A 2.0 ppb (3) 26.0 ppb (25) N/A N/A 125.0 μg/m3 (187) 187.0
 
July 15, 2021, 4 p.m. N/A N/A N/A 20.0 ppb (19) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A 147.6 μg/m3 (199) 199.0
 
July 15, 2021, 3 p.m. N/A N/A N/A 21.0 ppb (20) N/A 0.0 ppb (0) 7.0 ppb (7) N/A N/A 133.0 μg/m3 (192) 192.0
 
July 15, 2021, 2 p.m. N/A N/A N/A 21.0 ppb (20) N/A 1.0 ppb (2) 6.0 ppb (6) N/A N/A 120.7 μg/m3 (185) 185.0
 
July 15, 2021, 1 p.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (2) 4.0 ppb (4) N/A N/A 112.5 μg/m3 (181) 181.0
 
July 15, 2021, noon N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 5.0 ppb (5) N/A N/A 112.8 μg/m3 (181) 181.0
 
July 15, 2021, 11 a.m. N/A N/A N/A 22.0 ppb (21) N/A 1.0 ppb (2) 4.0 ppb (4) N/A N/A 114.7 μg/m3 (182) 182.0
 
July 15, 2021, 10 a.m. N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 7.0 ppb (7) N/A N/A 117.2 μg/m3 (183) 183.0
 
July 15, 2021, 9 a.m. N/A N/A N/A 17.0 ppb (17) N/A 0.0 ppb (0) 10.0 ppb (10) N/A N/A 115.0 μg/m3 (182) 182.0
 
July 15, 2021, 8 a.m. N/A N/A N/A 24.0 ppb (23) N/A 0.0 ppb (0) 7.0 ppb (7) N/A N/A 120.7 μg/m3 (185) 185.0
 
July 15, 2021, 7 a.m. N/A N/A N/A 30.0 ppb (29) N/A 1.0 ppb (2) 8.0 ppb (8) N/A N/A 123.3 μg/m3 (187) 187.0
 
July 15, 2021, 6 a.m. N/A N/A N/A 14.0 ppb (14) N/A 1.0 ppb (2) 23.0 ppb (22) N/A N/A 126.8 μg/m3 (188) 188.0
 
July 15, 2021, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 129.5 μg/m3 (190) 190.0
 
July 15, 2021, 4 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 116.6 μg/m3 (183) 183.0
 
July 15, 2021, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 50.9 μg/m3 (139) 139.0
 
July 15, 2021, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 37.0 μg/m3 (105) 105.0
 
July 15, 2021, 1 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 38.0 μg/m3 (108) 108.0
 
July 15, 2021, midnight N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 37.8 μg/m3 (107) 107.0
 
July 14, 2021, 11 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 41.4 μg/m3 (116) 116.0
 
July 14, 2021, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 54.7 μg/m3 (149) 149.0
 
July 14, 2021, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 61.0 μg/m3 (154) 154.0
 
July 14, 2021, 8 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 72.4 μg/m3 (160) 160.0