ID: 5326

AQSQID: 000105504

Site Name: Fort St John Learning Centre

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

Updated: Oct. 25, 2021, 11:02 a.m.

Location: Fort Saint John (99th Ave), CC

Reporting: True, Located: True

Current AQI: 22.0

Fort Saint John (99th Ave) CC, CA: 56.244722, -120.856111

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Oct. 25, 2021, 9 a.m. N/A 0.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 11.0 ppb (11) N/A 10.0 μg/m3 (10) 5.2 μg/m3 (22) 22.0
 
Oct. 25, 2021, 8 a.m. N/A 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 12.0 ppb (12) N/A 11.0 μg/m3 (11) 4.0 μg/m3 (17) 17.0
 
Oct. 25, 2021, 7 a.m. N/A 0.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 12.0 ppb (12) N/A 6.0 μg/m3 (6) 3.4 μg/m3 (15) 15.0
 
Oct. 25, 2021, 6 a.m. N/A 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 12.0 ppb (12) N/A 3.0 μg/m3 (3) 4.6 μg/m3 (20) 20.0
 
Oct. 25, 2021, 5 a.m. N/A 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 12.0 ppb (12) N/A 4.0 μg/m3 (4) 5.8 μg/m3 (25) 25.0
 
Oct. 25, 2021, 4 a.m. N/A 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 11.0 ppb (11) N/A 9.0 μg/m3 (9) 9.6 μg/m3 (40) 40.0
 
Oct. 25, 2021, 3 a.m. N/A 0.4 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 11.0 ppb (11) N/A 12.0 μg/m3 (12) 13.8 μg/m3 (55) 55.0
 
Oct. 25, 2021, 2 a.m. N/A 0.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 10.0 ppb (10) N/A 14.0 μg/m3 (13) 16.2 μg/m3 (60) 60.0
 
Oct. 25, 2021, 1 a.m. N/A 1.4 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 9.0 ppb (9) N/A 18.0 μg/m3 (17) 19.1 μg/m3 (66) 66.0
 
Oct. 25, 2021, midnight N/A 1.7 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 9.0 ppb (9) N/A 17.0 μg/m3 (16) 19.7 μg/m3 (67) 67.0
 
Oct. 24, 2021, 11 p.m. N/A 1.7 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 11.0 ppb (11) N/A 16.0 μg/m3 (15) 18.3 μg/m3 (65) 65.0
 
Oct. 24, 2021, 10 p.m. N/A 1.2 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 13.0 ppb (13) N/A 21.0 μg/m3 (20) 22.1 μg/m3 (73) 73.0
 
Oct. 24, 2021, 9 p.m. N/A 2.9 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 9.0 ppb (9) N/A 12.0 μg/m3 (12) 27.6 μg/m3 (84) 84.0
 
Oct. 24, 2021, 8 p.m. N/A 3.8 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 5.0 ppb (5) N/A 13.0 μg/m3 (13) 17.0 μg/m3 (62) 62.0
 
Oct. 24, 2021, 7 p.m. N/A 4.4 ppb (5) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 6.0 ppb (6) N/A 13.0 μg/m3 (13) 21.5 μg/m3 (71) 71.0
 
Oct. 24, 2021, 6 p.m. N/A 6.4 ppb (7) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 5.0 ppb (5) N/A 8.0 μg/m3 (8) 14.7 μg/m3 (57) 57.0
 
Oct. 24, 2021, 5 p.m. N/A 5.5 ppb (6) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 4.0 ppb (4) N/A 8.0 μg/m3 (8) 6.7 μg/m3 (28) 28.0
 
Oct. 24, 2021, 4 p.m. N/A 3.8 ppb (4) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 3.0 ppb (3) N/A 7.0 μg/m3 (7) 5.5 μg/m3 (23) 23.0
 
Oct. 24, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 6.4 μg/m3 (27) 27.0
 
Oct. 24, 2021, 2 p.m. N/A 1.2 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 1.0 ppb (1) N/A 8.0 μg/m3 (8) 5.7 μg/m3 (24) 24.0
 
Oct. 24, 2021, 1 p.m. N/A 1.6 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 1.0 ppb (1) N/A 8.0 μg/m3 (8) 6.9 μg/m3 (29) 29.0
 
Oct. 24, 2021, noon N/A 2.3 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 1.0 ppb (1) N/A 10.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Oct. 24, 2021, 11 a.m. N/A 1.3 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 2.0 ppb (2) N/A 13.0 μg/m3 (13) 5.2 μg/m3 (22) 22.0
 
Oct. 24, 2021, 10 a.m. N/A 0.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 3.0 ppb (3) N/A 14.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
Oct. 24, 2021, 9 a.m. N/A 0.6 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 2.0 ppb (2) N/A 16.0 μg/m3 (15) 4.7 μg/m3 (20) 20.0
 
Oct. 24, 2021, 8 a.m. N/A 1.3 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 2.0 ppb (2) N/A 12.0 μg/m3 (12) 5.2 μg/m3 (22) 22.0
 
Oct. 24, 2021, 7 a.m. N/A 0.7 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 3.0 ppb (3) N/A 10.0 μg/m3 (10) 5.2 μg/m3 (22) 22.0
 
Oct. 24, 2021, 6 a.m. N/A 1.6 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 3.0 ppb (3) N/A 13.0 μg/m3 (13) 5.6 μg/m3 (24) 24.0
 
Oct. 24, 2021, 5 a.m. N/A 3.1 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 2.0 ppb (2) N/A 15.0 μg/m3 (14) 9.6 μg/m3 (40) 40.0
 
Oct. 24, 2021, 4 a.m. N/A 2.4 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 2.0 ppb (2) N/A 18.0 μg/m3 (17) 9.2 μg/m3 (39) 39.0
 
Oct. 24, 2021, 3 a.m. N/A 4.1 ppb (4) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 2.0 ppb (2) N/A 19.0 μg/m3 (18) 10.7 μg/m3 (45) 45.0
 
Oct. 24, 2021, 2 a.m. N/A 3.3 ppb (4) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 2.0 ppb (2) N/A 23.0 μg/m3 (22) 12.3 μg/m3 (52) 52.0
 
Oct. 24, 2021, 1 a.m. N/A 3.7 ppb (4) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 2.0 ppb (2) N/A 23.0 μg/m3 (22) 14.0 μg/m3 (55) 55.0
 
Oct. 24, 2021, midnight N/A 4.9 ppb (5) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 2.0 ppb (2) N/A 29.0 μg/m3 (27) 14.7 μg/m3 (57) 57.0
 
Oct. 23, 2021, 11 p.m. N/A 5.6 ppb (6) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 3.0 ppb (3) N/A 27.0 μg/m3 (25) 16.8 μg/m3 (61) 61.0
 
Oct. 23, 2021, 10 p.m. N/A 3.9 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 5.0 ppb (5) N/A 30.0 μg/m3 (28) 22.0 μg/m3 (72) 72.0
 
Oct. 23, 2021, 9 p.m. N/A 4.8 ppb (5) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 7.0 ppb (7) N/A 27.0 μg/m3 (25) 26.3 μg/m3 (81) 81.0
 
Oct. 23, 2021, 8 p.m. N/A 4.6 ppb (5) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 6.0 ppb (6) N/A 23.0 μg/m3 (22) 28.4 μg/m3 (86) 86.0
 
Oct. 23, 2021, 7 p.m. N/A 5.7 ppb (6) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 5.0 ppb (5) N/A 22.0 μg/m3 (21) 25.2 μg/m3 (79) 79.0
 
Oct. 23, 2021, 6 p.m. N/A 5.1 ppb (5) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 5.0 ppb (5) N/A 8.0 μg/m3 (8) 13.0 μg/m3 (53) 53.0
 
Oct. 23, 2021, 5 p.m. N/A 4.0 ppb (4) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 5.0 ppb (5) N/A 11.0 μg/m3 (11) 7.2 μg/m3 (31) 31.0
 
Oct. 23, 2021, 4 p.m. N/A 5.1 ppb (5) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 4.0 ppb (4) N/A 12.0 μg/m3 (12) 7.9 μg/m3 (33) 33.0
 
Oct. 23, 2021, 3 p.m. N/A 3.2 ppb (4) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 3.0 ppb (3) N/A 12.0 μg/m3 (12) 9.4 μg/m3 (40) 40.0
 
Oct. 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 7.0 μg/m3 (30) 30.0
 
Oct. 23, 2021, 1 p.m. N/A 1.1 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 3.0 ppb (3) N/A 10.0 μg/m3 (10) 8.2 μg/m3 (35) 35.0
 
Oct. 23, 2021, noon N/A 0.7 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 4.0 ppb (4) N/A 13.0 μg/m3 (13) 7.8 μg/m3 (33) 33.0
 
Oct. 23, 2021, 11 a.m. N/A 2.2 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 2.0 ppb (2) N/A 12.0 μg/m3 (12) 10.9 μg/m3 (46) 46.0
 
Oct. 23, 2021, 10 a.m. N/A 2.0 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 3.0 ppb (3) N/A 13.0 μg/m3 (13) 11.7 μg/m3 (49) 49.0
 
Oct. 23, 2021, 9 a.m. N/A 1.3 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 4.0 ppb (4) N/A 14.0 μg/m3 (13) 12.4 μg/m3 (52) 52.0
 
Oct. 23, 2021, 8 a.m. N/A 2.0 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 4.0 ppb (4) N/A 18.0 μg/m3 (17) 10.8 μg/m3 (46) 46.0
 
Oct. 23, 2021, 7 a.m. N/A 1.6 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 5.0 ppb (5) N/A 20.0 μg/m3 (19) 10.7 μg/m3 (45) 45.0
 
Oct. 23, 2021, 6 a.m. N/A 3.6 ppb (4) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 3.0 ppb (3) N/A 21.0 μg/m3 (20) 12.0 μg/m3 (50) 50.0
 
Oct. 23, 2021, 5 a.m. N/A 2.0 ppb (2) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 4.0 ppb (4) N/A 19.0 μg/m3 (18) 13.3 μg/m3 (54) 54.0
 
Oct. 23, 2021, 4 a.m. N/A 1.5 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 7.0 ppb (7) N/A 20.0 μg/m3 (19) 11.7 μg/m3 (49) 49.0
 
Oct. 23, 2021, 3 a.m. N/A 1.2 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 7.0 ppb (7) N/A 22.0 μg/m3 (21) 13.4 μg/m3 (54) 54.0
 
Oct. 23, 2021, 2 a.m. N/A 1.8 ppb (2) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 7.0 ppb (7) N/A 27.0 μg/m3 (25) 12.3 μg/m3 (52) 52.0
 
Oct. 23, 2021, 1 a.m. N/A 1.9 ppb (2) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 7.0 ppb (7) N/A 38.0 μg/m3 (36) 13.6 μg/m3 (55) 55.0
 
Oct. 23, 2021, midnight N/A 2.5 ppb (3) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 8.0 ppb (8) N/A 37.0 μg/m3 (35) 15.1 μg/m3 (58) 58.0
 
Oct. 22, 2021, 11 p.m. N/A 2.1 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 12.0 ppb (12) N/A 29.0 μg/m3 (27) 10.0 μg/m3 (42) 42.0
 
Oct. 22, 2021, 10 p.m. N/A 2.6 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 14.0 ppb (13) N/A 24.0 μg/m3 (23) 5.8 μg/m3 (25) 25.0
 
Oct. 22, 2021, 9 p.m. N/A 2.7 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 15.0 ppb (14) N/A 25.0 μg/m3 (24) 5.4 μg/m3 (23) 24.0
 
Oct. 22, 2021, 8 p.m. N/A 3.4 ppb (4) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 13.0 ppb (13) N/A 22.0 μg/m3 (21) 5.7 μg/m3 (24) 24.0
 
Oct. 22, 2021, 7 p.m. N/A 2.9 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 12.0 ppb (12) N/A 24.0 μg/m3 (23) 6.3 μg/m3 (27) 27.0
 
Oct. 22, 2021, 6 p.m. N/A 2.4 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 12.0 ppb (12) N/A 22.0 μg/m3 (21) 6.4 μg/m3 (27) 27.0
 
Oct. 22, 2021, 5 p.m. N/A 2.7 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 11.0 ppb (11) N/A 24.0 μg/m3 (23) 6.1 μg/m3 (26) 26.0
 
Oct. 22, 2021, 4 p.m. N/A 2.7 ppb (3) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 9.0 ppb (9) N/A 24.0 μg/m3 (23) 6.3 μg/m3 (27) 27.0
 
Oct. 22, 2021, 3 p.m. N/A 2.1 ppb (2) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 9.0 ppb (9) N/A 21.0 μg/m3 (20) 6.9 μg/m3 (29) 29.0
 
Oct. 22, 2021, 2 p.m. N/A 4.4 ppb (5) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 5.0 ppb (5) N/A 17.0 μg/m3 (16) 6.2 μg/m3 (26) 26.0
 
Oct. 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 4.9 μg/m3 (21) 21.0
 
Oct. 22, 2021, noon N/A 0.6 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 12.0 ppb (12) N/A 13.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
Oct. 22, 2021, 11 a.m. N/A 0.2 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 14.0 ppb (13) N/A 14.0 μg/m3 (13) 5.1 μg/m3 (22) 22.0
 
Oct. 22, 2021, 10 a.m. N/A 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 15.0 ppb (14) N/A 12.0 μg/m3 (12) 4.7 μg/m3 (20) 20.0
 
Oct. 22, 2021, 9 a.m. N/A 0.1 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 14.0 ppb (13) N/A 14.0 μg/m3 (13) 6.1 μg/m3 (26) 26.0
 
Oct. 22, 2021, 8 a.m. N/A 0.2 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 12.0 ppb (12) N/A 8.0 μg/m3 (8) 6.2 μg/m3 (26) 26.0
 
Oct. 22, 2021, 7 a.m. N/A 0.3 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 15.0 ppb (14) N/A 9.0 μg/m3 (9) 6.5 μg/m3 (28) 28.0
 
Oct. 22, 2021, 6 a.m. N/A 0.2 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 15.0 ppb (14) N/A 9.0 μg/m3 (9) 7.1 μg/m3 (30) 30.0
 
Oct. 22, 2021, 5 a.m. N/A 0.5 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 12.0 ppb (12) N/A 10.0 μg/m3 (10) 9.3 μg/m3 (39) 39.0
 
Oct. 22, 2021, 4 a.m. N/A 0.6 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 8.0 ppb (8) N/A 15.0 μg/m3 (14) 10.0 μg/m3 (42) 42.0
 
Oct. 22, 2021, 3 a.m. N/A 0.7 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 10.0 ppb (10) N/A 16.0 μg/m3 (15) 8.7 μg/m3 (37) 37.0
 
Oct. 22, 2021, 2 a.m. N/A 1.5 ppb (2) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 9.0 ppb (9) N/A 22.0 μg/m3 (21) 7.5 μg/m3 (32) 32.0
 
Oct. 22, 2021, 1 a.m. N/A 2.2 ppb (3) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 7.0 ppb (7) N/A 24.0 μg/m3 (23) 9.0 μg/m3 (38) 38.0
 
Oct. 22, 2021, midnight N/A 1.4 ppb (2) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 12.0 ppb (12) N/A 24.0 μg/m3 (23) 6.6 μg/m3 (28) 28.0
 
Oct. 21, 2021, 11 p.m. N/A 1.9 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 14.0 ppb (13) N/A 23.0 μg/m3 (22) 4.5 μg/m3 (19) 22.0
 
Oct. 21, 2021, 10 p.m. N/A 3.7 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (13) N/A 22.0 μg/m3 (21) 4.6 μg/m3 (20) 21.0
 
Oct. 21, 2021, 9 p.m. N/A 6.6 ppb (7) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 9.0 ppb (9) N/A 22.0 μg/m3 (21) 5.8 μg/m3 (25) 25.0
 
Oct. 21, 2021, 8 p.m. N/A 8.5 ppb (9) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 6.0 ppb (6) N/A 23.0 μg/m3 (22) 15.6 μg/m3 (59) 59.0
 
Oct. 21, 2021, 7 p.m. N/A 6.5 ppb (7) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 4.0 ppb (4) N/A 15.0 μg/m3 (14) 12.0 μg/m3 (50) 50.0
 
Oct. 21, 2021, 6 p.m. N/A 9.2 ppb (9) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 4.0 ppb (4) N/A 8.0 μg/m3 (8) 7.0 μg/m3 (30) 30.0
 
Oct. 21, 2021, 5 p.m. N/A 13.7 ppb (13) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 2.0 ppb (2) N/A 6.0 μg/m3 (6) 4.5 μg/m3 (19) 19.0
 
Oct. 21, 2021, 4 p.m. N/A 11.6 ppb (11) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 2.0 ppb (2) N/A 6.0 μg/m3 (6) 2.8 μg/m3 (12) 12.0
 
Oct. 21, 2021, 3 p.m. N/A 8.2 ppb (8) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 1.0 ppb (1) N/A 8.0 μg/m3 (8) 7.1 μg/m3 (30) 30.0
 
Oct. 21, 2021, 2 p.m. N/A 4.5 ppb (5) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 0.0 ppb (0) N/A 10.0 μg/m3 (10) 4.5 μg/m3 (19) 19.0
 
Oct. 21, 2021, 1 p.m. N/A 3.5 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 1.0 ppb (1) N/A 7.0 μg/m3 (7) 3.2 μg/m3 (14) 14.0
 
Oct. 21, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 4.1 μg/m3 (18) 18.0
 
Oct. 21, 2021, 11 a.m. N/A 0.6 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 3.0 ppb (3) N/A 12.0 μg/m3 (12) 3.1 μg/m3 (13) 13.0
 
Oct. 21, 2021, 10 a.m. N/A 0.6 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 4.0 ppb (4) N/A 13.0 μg/m3 (13) 5.5 μg/m3 (23) 23.0
 
Oct. 21, 2021, 9 a.m. N/A 0.3 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 6.0 ppb (6) N/A 13.0 μg/m3 (13) 9.8 μg/m3 (41) 41.0
 
Oct. 21, 2021, 8 a.m. N/A 0.4 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 7.0 ppb (7) N/A 5.0 μg/m3 (5) 9.2 μg/m3 (39) 39.0
 
Oct. 21, 2021, 7 a.m. N/A 0.4 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 4.0 ppb (4) N/A 10.0 μg/m3 (10) 7.9 μg/m3 (33) 33.0
 
Oct. 21, 2021, 6 a.m. N/A 0.8 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 5.0 ppb (5) N/A 7.0 μg/m3 (7) 6.2 μg/m3 (26) 26.0
 
Oct. 21, 2021, 5 a.m. N/A 0.9 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 6.0 ppb (6) N/A 10.0 μg/m3 (10) 6.1 μg/m3 (26) 26.0
 
Oct. 21, 2021, 4 a.m. N/A 1.9 ppb (2) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 5.0 ppb (5) N/A 16.0 μg/m3 (15) 13.1 μg/m3 (54) 54.0
 
Oct. 21, 2021, 3 a.m. N/A 1.5 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 6.0 ppb (6) N/A 13.0 μg/m3 (13) 13.6 μg/m3 (55) 55.0
 
Oct. 21, 2021, 2 a.m. N/A 0.8 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 8.0 ppb (8) N/A 14.0 μg/m3 (13) 12.2 μg/m3 (52) 52.0
 
Oct. 21, 2021, 1 a.m. N/A 0.8 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 8.0 ppb (8) N/A 16.0 μg/m3 (15) 13.1 μg/m3 (54) 54.0
 
Oct. 21, 2021, midnight N/A 0.9 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 9.0 ppb (9) N/A 23.0 μg/m3 (22) 18.2 μg/m3 (64) 64.0
 
Oct. 20, 2021, 11 p.m. N/A 1.7 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 8.0 ppb (8) N/A 22.0 μg/m3 (21) 19.1 μg/m3 (66) 66.0
 
Oct. 20, 2021, 10 p.m. N/A 1.9 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 8.0 ppb (8) N/A 19.0 μg/m3 (18) 21.9 μg/m3 (72) 72.0
 
Oct. 20, 2021, 9 p.m. N/A 1.6 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 10.0 ppb (10) N/A 14.0 μg/m3 (13) 15.5 μg/m3 (59) 59.0
 
Oct. 20, 2021, 8 p.m. N/A 1.8 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 10.0 ppb (10) N/A 10.0 μg/m3 (10) 11.4 μg/m3 (48) 48.0
 
Oct. 20, 2021, 7 p.m. N/A 2.2 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 9.0 ppb (9) N/A 9.0 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
Oct. 20, 2021, 6 p.m. N/A 2.6 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 8.0 ppb (8) N/A 13.0 μg/m3 (13) 12.3 μg/m3 (52) 52.0
 
Oct. 20, 2021, 5 p.m. N/A 2.2 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 7.0 ppb (7) N/A 8.0 μg/m3 (8) 10.3 μg/m3 (43) 43.0
 
Oct. 20, 2021, 4 p.m. N/A 1.4 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 9.0 ppb (9) N/A 13.0 μg/m3 (13) 8.1 μg/m3 (34) 34.0
 
Oct. 20, 2021, 3 p.m. N/A 1.5 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 8.0 ppb (8) N/A 13.0 μg/m3 (13) 8.3 μg/m3 (35) 35.0
 
Oct. 20, 2021, 2 p.m. N/A 1.4 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 8.0 ppb (8) N/A 17.0 μg/m3 (16) 9.7 μg/m3 (41) 41.0
 
Oct. 20, 2021, 1 p.m. N/A 1.1 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 7.0 ppb (7) N/A 16.0 μg/m3 (15) 20.8 μg/m3 (70) 70.0
 
Oct. 20, 2021, noon N/A 0.3 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 12.0 ppb (12) N/A 16.0 μg/m3 (15) 17.7 μg/m3 (63) 63.0
 
Oct. 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 12.4 μg/m3 (52) 52.0
 
Oct. 20, 2021, 10 a.m. N/A 0.9 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 11.0 ppb (11) N/A 18.0 μg/m3 (17) 11.2 μg/m3 (47) 47.0
 
Oct. 20, 2021, 9 a.m. N/A 0.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 11.0 ppb (11) N/A 17.0 μg/m3 (16) 11.1 μg/m3 (47) 47.0
 
Oct. 20, 2021, 8 a.m. N/A 0.5 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 11.0 ppb (11) N/A 24.0 μg/m3 (23) 11.7 μg/m3 (49) 49.0
 
Oct. 20, 2021, 7 a.m. N/A 0.5 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 8.0 ppb (8) N/A 18.0 μg/m3 (17) 13.8 μg/m3 (55) 55.0
 
Oct. 20, 2021, 6 a.m. N/A 0.3 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 11.0 ppb (11) N/A 15.0 μg/m3 (14) 13.1 μg/m3 (54) 54.0
 
Oct. 20, 2021, 5 a.m. N/A 0.3 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 11.0 ppb (11) N/A 10.0 μg/m3 (10) 8.9 μg/m3 (38) 38.0
 
Oct. 20, 2021, 4 a.m. N/A 0.5 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 12.0 ppb (12) N/A 12.0 μg/m3 (12) 8.9 μg/m3 (38) 38.0
 
Oct. 20, 2021, 3 a.m. N/A 0.6 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 11.0 ppb (11) N/A 8.0 μg/m3 (8) 10.1 μg/m3 (43) 43.0
 
Oct. 20, 2021, 2 a.m. N/A 0.7 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 11.0 ppb (11) N/A 6.0 μg/m3 (6) 7.5 μg/m3 (32) 32.0
 
Oct. 20, 2021, 1 a.m. N/A 0.8 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (13) N/A 12.0 μg/m3 (12) 5.7 μg/m3 (24) 24.0
 
Oct. 20, 2021, midnight N/A 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 14.0 ppb (13) N/A 15.0 μg/m3 (14) 6.3 μg/m3 (27) 27.0
 
Oct. 19, 2021, 11 p.m. N/A 1.2 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (13) N/A 12.0 μg/m3 (12) 6.9 μg/m3 (29) 29.0
 
Oct. 19, 2021, 10 p.m. N/A 1.9 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (13) N/A 11.0 μg/m3 (11) 6.3 μg/m3 (27) 27.0
 
Oct. 19, 2021, 9 p.m. N/A 1.6 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 14.0 ppb (13) N/A 9.0 μg/m3 (9) 4.0 μg/m3 (17) 17.0
 
Oct. 19, 2021, 8 p.m. N/A 1.7 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 14.0 ppb (13) N/A 11.0 μg/m3 (11) 4.7 μg/m3 (20) 20.0
 
Oct. 19, 2021, 7 p.m. N/A 2.3 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 13.0 ppb (13) N/A 7.0 μg/m3 (7) 4.5 μg/m3 (19) 19.0
 
Oct. 19, 2021, 6 p.m. N/A 15.0 ppb (15) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 10.0 ppb (10) N/A 13.0 μg/m3 (13) 3.1 μg/m3 (13) 15.0
 
Oct. 19, 2021, 5 p.m. N/A 1.9 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 10.0 ppb (10) N/A 10.0 μg/m3 (10) 2.4 μg/m3 (10) 10.0
 
Oct. 19, 2021, 4 p.m. N/A 1.6 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 11.0 ppb (11) N/A 11.0 μg/m3 (11) 2.4 μg/m3 (10) 11.0
 
Oct. 19, 2021, 3 p.m. N/A 1.7 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 10.0 ppb (10) N/A 9.0 μg/m3 (9) 3.2 μg/m3 (14) 14.0
 
Oct. 19, 2021, 2 p.m. N/A 1.2 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 10.0 ppb (10) N/A 10.0 μg/m3 (10) 3.3 μg/m3 (14) 14.0
 
Oct. 19, 2021, 1 p.m. N/A 1.6 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 11.0 ppb (11) N/A 6.0 μg/m3 (6) 3.0 μg/m3 (13) 13.0
 
Oct. 19, 2021, noon N/A 0.6 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 11.0 ppb (11) N/A 10.0 μg/m3 (10) 4.3 μg/m3 (18) 18.0
 
Oct. 19, 2021, 11 a.m. N/A 0.3 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 11.0 ppb (11) N/A 5.0 μg/m3 (5) 5.1 μg/m3 (22) 22.0
 
Oct. 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 3.6 μg/m3 (16) 16.0
 
Oct. 19, 2021, 9 a.m. N/A 0.3 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 14.0 ppb (13) N/A 2.0 μg/m3 (2) 3.6 μg/m3 (16) 16.0
 
Oct. 19, 2021, 8 a.m. N/A 0.2 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 14.0 ppb (13) N/A 0.0 μg/m3 (0) 3.0 μg/m3 (13) 13.0
 
Oct. 19, 2021, 7 a.m. N/A 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 18.0 ppb (17) N/A 5.0 μg/m3 (5) 3.5 μg/m3 (15) 17.0
 
Oct. 19, 2021, 6 a.m. N/A 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (18) N/A 5.0 μg/m3 (5) 4.5 μg/m3 (19) 19.0
 
Oct. 19, 2021, 5 a.m. N/A 0.2 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (17) N/A 8.0 μg/m3 (8) 6.3 μg/m3 (27) 27.0
 
Oct. 19, 2021, 4 a.m. N/A 0.3 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 19.0 ppb (18) N/A 9.0 μg/m3 (9) 6.9 μg/m3 (29) 29.0
 
Oct. 19, 2021, 3 a.m. N/A 0.4 ppb (1) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 16.0 ppb (15) N/A 15.0 μg/m3 (14) 6.4 μg/m3 (27) 27.0
 
Oct. 19, 2021, 2 a.m. N/A 2.2 ppb (3) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 10.0 ppb (10) N/A 25.0 μg/m3 (24) 7.2 μg/m3 (31) 31.0
 
Oct. 19, 2021, 1 a.m. N/A 2.9 ppb (3) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 6.0 ppb (6) N/A 24.0 μg/m3 (23) 6.8 μg/m3 (29) 29.0
 
Oct. 19, 2021, midnight N/A 2.1 ppb (2) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 12.0 ppb (12) N/A 18.0 μg/m3 (17) 5.0 μg/m3 (21) 21.0
 
Oct. 18, 2021, 11 p.m. N/A 2.5 ppb (3) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 14.0 ppb (13) N/A 14.0 μg/m3 (13) 4.9 μg/m3 (21) 21.0
 
Oct. 18, 2021, 10 p.m. N/A 1.2 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 22.0 ppb (21) N/A 6.0 μg/m3 (6) 3.0 μg/m3 (13) 21.0
 
Oct. 18, 2021, 9 p.m. N/A 1.7 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 21.0 ppb (20) N/A 8.0 μg/m3 (8) 5.2 μg/m3 (22) 22.0
 
Oct. 18, 2021, 8 p.m. N/A 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 22.0 ppb (21) N/A 16.0 μg/m3 (15) 2.8 μg/m3 (12) 21.0
 
Oct. 18, 2021, 7 p.m. N/A 7.6 ppb (8) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 16.0 ppb (15) N/A 29.0 μg/m3 (27) 5.2 μg/m3 (22) 27.0
 
Oct. 18, 2021, 6 p.m. N/A 26.7 ppb (26) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 7.0 ppb (7) N/A 26.0 μg/m3 (25) 10.2 μg/m3 (43) 43.0
 
Oct. 18, 2021, 5 p.m. N/A 24.1 ppb (23) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 7.0 ppb (7) N/A 28.0 μg/m3 (26) 11.4 μg/m3 (48) 48.0
 
Oct. 18, 2021, 4 p.m. N/A 32.9 ppb (32) N/A 20.0 ppb (19) N/A 1.0 ppb (2) 5.0 ppb (5) N/A 18.0 μg/m3 (17) 12.1 μg/m3 (51) 51.0
 
Oct. 18, 2021, 3 p.m. N/A 35.3 ppb (34) N/A 26.0 ppb (25) N/A 1.0 ppb (2) 2.0 ppb (2) N/A 40.0 μg/m3 (38) 12.2 μg/m3 (52) 52.0
 
Oct. 18, 2021, 2 p.m. N/A 59.2 ppb (57) N/A 28.0 ppb (27) N/A 1.0 ppb (2) 1.0 ppb (1) N/A 51.0 μg/m3 (48) 19.0 μg/m3 (66) 66.0
 
Oct. 18, 2021, 1 p.m. N/A 42.7 ppb (41) N/A 27.0 ppb (26) N/A 1.0 ppb (2) 0.0 ppb (0) N/A 24.0 μg/m3 (23) 7.3 μg/m3 (31) 41.0
 
Oct. 18, 2021, noon N/A 12.5 ppb (12) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 2.0 ppb (2) N/A 12.0 μg/m3 (12) 6.6 μg/m3 (28) 28.0
 
Oct. 18, 2021, 11 a.m. N/A 1.2 ppb (2) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 6.0 ppb (6) N/A 13.0 μg/m3 (13) 6.3 μg/m3 (27) 27.0
 
Oct. 18, 2021, 10 a.m. N/A 1.4 ppb (2) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 6.0 ppb (6) N/A 17.0 μg/m3 (16) 5.7 μg/m3 (24) 24.0