ID: 1297

AQSQID: 000090121

Site Name: Edmonton East

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

Updated: Sept. 20, 2021, 4:58 p.m.

Location: Sherwood Park (17 St), CC

Reporting: True, Located: True

Current AQI: 63.0

Sherwood Park (17 St) CC, CA: 53.5472, -113.3681

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 20, 2021, 2 p.m. N/A N/A N/A 23.0 ppb (22) N/A 1.0 ppb (2) 7.0 ppb (7) 0.5 ppb (6) N/A 17.4 μg/m3 (63) 63.0
 
Sept. 20, 2021, 1 p.m. N/A N/A N/A 24.0 ppb (23) N/A 0.0 ppb (0) 12.0 ppb (12) 0.3 ppb (4) N/A 12.7 μg/m3 (53) 53.0
 
Sept. 20, 2021, noon N/A N/A N/A 23.0 ppb (22) N/A 0.0 ppb (0) 4.0 ppb (4) 0.2 ppb (3) N/A 5.8 μg/m3 (25) 25.0
 
Sept. 20, 2021, 11 a.m. N/A N/A N/A 20.0 ppb (19) N/A 0.0 ppb (0) 5.0 ppb (5) 0.2 ppb (3) N/A 3.3 μg/m3 (14) 19.0
 
Sept. 20, 2021, 10 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
 
Sept. 20, 2021, 9 a.m. N/A N/A N/A 14.0 ppb (14) N/A 0.0 ppb (0) 14.0 ppb (13) 0.2 ppb (3) N/A 2.4 μg/m3 (10) 14.0
 
Sept. 20, 2021, 8 a.m. N/A N/A N/A 17.0 ppb (17) N/A 0.0 ppb (0) 11.0 ppb (11) 0.2 ppb (3) N/A 4.8 μg/m3 (20) 20.0
 
Sept. 20, 2021, 7 a.m. N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 9.0 ppb (9) 0.2 ppb (3) N/A 3.9 μg/m3 (17) 17.0
 
Sept. 20, 2021, 6 a.m. N/A N/A N/A 21.0 ppb (20) N/A 0.0 ppb (0) 5.0 ppb (5) 0.3 ppb (4) N/A 4.7 μg/m3 (20) 20.0
 
Sept. 20, 2021, 5 a.m. N/A N/A N/A 21.0 ppb (20) N/A 0.0 ppb (0) 6.0 ppb (6) 0.3 ppb (4) N/A 4.9 μg/m3 (21) 21.0
 
Sept. 20, 2021, 4 a.m. N/A N/A N/A 16.0 ppb (16) N/A 0.0 ppb (0) 13.0 ppb (13) 0.2 ppb (3) N/A 5.4 μg/m3 (23) 23.0
 
Sept. 20, 2021, 3 a.m. N/A N/A N/A 13.0 ppb (13) N/A 0.0 ppb (0) 17.0 ppb (16) 0.2 ppb (3) N/A 2.6 μg/m3 (11) 16.0
 
Sept. 20, 2021, 2 a.m. N/A N/A N/A 11.0 ppb (11) N/A 0.0 ppb (0) 19.0 ppb (18) 0.2 ppb (3) N/A 2.5 μg/m3 (11) 18.0
 
Sept. 20, 2021, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) N/A 1.3 μg/m3 (6) 26.0
 
Sept. 20, 2021, midnight N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) N/A 0.8 μg/m3 (4) 26.0
 
Sept. 19, 2021, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) 0.2 ppb (3) N/A 0.6 μg/m3 (3) 27.0
 
Sept. 19, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (27) 0.2 ppb (3) N/A 0.5 μg/m3 (3) 27.0
 
Sept. 19, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (27) 0.2 ppb (3) N/A 0.3 μg/m3 (2) 27.0
 
Sept. 19, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (28) 0.2 ppb (3) N/A 0.1 μg/m3 (1) 28.0
 
Sept. 19, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (30) 0.2 ppb (3) N/A 0.5 μg/m3 (3) 30.0
 
Sept. 19, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) 0.2 ppb (3) N/A 0.4 μg/m3 (2) 31.0
 
Sept. 19, 2021, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) 0.2 ppb (3) N/A 0.8 μg/m3 (4) 28.0
 
Sept. 19, 2021, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 28.0 ppb (26) 0.2 ppb (3) N/A 1.4 μg/m3 (6) 26.0
 
Sept. 19, 2021, 3 p.m. N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 21.0 ppb (20) 0.3 ppb (4) N/A 4.0 μg/m3 (17) 20.0
 
Sept. 19, 2021, 2 p.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) 17.0 ppb (16) 0.2 ppb (3) N/A 5.1 μg/m3 (22) 22.0
 
Sept. 19, 2021, 1 p.m. N/A N/A N/A 15.0 ppb (15) N/A 0.0 ppb (0) 10.0 ppb (10) 0.2 ppb (3) N/A 3.4 μg/m3 (15) 15.0
 
Sept. 19, 2021, noon N/A N/A N/A 14.0 ppb (14) N/A 0.0 ppb (0) 10.0 ppb (10) 0.2 ppb (3) N/A 2.6 μg/m3 (11) 14.0
 
Sept. 19, 2021, 11 a.m. N/A N/A N/A 14.0 ppb (14) N/A 0.0 ppb (0) 13.0 ppb (13) 0.2 ppb (3) N/A 5.5 μg/m3 (23) 23.0
 
Sept. 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.5 μg/m3 (23) 23.0
 
Sept. 19, 2021, 9 a.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) 16.0 ppb (15) 0.2 ppb (3) N/A 3.8 μg/m3 (16) 16.0
 
Sept. 19, 2021, 8 a.m. N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 16.0 ppb (15) 0.2 ppb (3) N/A 4.9 μg/m3 (21) 21.0
 
Sept. 19, 2021, 7 a.m. N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 16.0 ppb (15) 0.2 ppb (3) N/A 3.8 μg/m3 (16) 16.0
 
Sept. 19, 2021, 6 a.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 24.0 ppb (23) 0.3 ppb (4) N/A 3.9 μg/m3 (17) 23.0
 
Sept. 19, 2021, 5 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) N/A 3.7 μg/m3 (16) 26.0
 
Sept. 19, 2021, 4 a.m. N/A N/A N/A 15.0 ppb (15) N/A 0.0 ppb (0) 21.0 ppb (20) 0.2 ppb (3) N/A 4.7 μg/m3 (20) 20.0
 
Sept. 19, 2021, 3 a.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 31.0 ppb (29) 0.2 ppb (3) N/A 3.9 μg/m3 (17) 29.0
 
Sept. 19, 2021, 2 a.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (29) 0.2 ppb (3) N/A 6.2 μg/m3 (26) 29.0
 
Sept. 19, 2021, 1 a.m. N/A N/A N/A 20.0 ppb (19) N/A 0.0 ppb (0) 18.0 ppb (17) 0.2 ppb (3) N/A 7.5 μg/m3 (32) 32.0
 
Sept. 19, 2021, midnight N/A N/A N/A 16.0 ppb (16) N/A 0.0 ppb (0) 24.0 ppb (23) 0.2 ppb (3) N/A 5.3 μg/m3 (23) 23.0
 
Sept. 18, 2021, 11 p.m. N/A N/A N/A 12.0 ppb (12) N/A 0.0 ppb (0) 27.0 ppb (25) 0.2 ppb (3) N/A 4.7 μg/m3 (20) 25.0
 
Sept. 18, 2021, 10 p.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) 30.0 ppb (28) 0.2 ppb (3) N/A 4.6 μg/m3 (20) 28.0
 
Sept. 18, 2021, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) N/A 4.7 μg/m3 (20) 26.0
 
Sept. 18, 2021, 8 p.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) 21.0 ppb (20) 0.2 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2021, 7 p.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 15.0 ppb (14) 0.2 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Sept. 18, 2021, 6 p.m. N/A N/A N/A 11.0 ppb (11) N/A 1.0 ppb (2) 14.0 ppb (13) 0.2 ppb (3) N/A 8.7 μg/m3 (37) 37.0
 
Sept. 18, 2021, 5 p.m. N/A N/A N/A 15.0 ppb (15) N/A 1.0 ppb (2) 11.0 ppb (11) 0.3 ppb (4) N/A 11.3 μg/m3 (48) 48.0
 
Sept. 18, 2021, 4 p.m. N/A N/A N/A 18.0 ppb (17) N/A 2.0 ppb (3) 10.0 ppb (10) 0.4 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 18, 2021, 3 p.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (2) 6.0 ppb (6) 0.3 ppb (4) N/A 12.1 μg/m3 (51) 51.0
 
Sept. 18, 2021, 2 p.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (2) 3.0 ppb (3) 0.3 ppb (4) N/A 11.8 μg/m3 (50) 50.0
 
Sept. 18, 2021, 1 p.m. N/A N/A N/A 21.0 ppb (20) N/A 0.0 ppb (0) 2.0 ppb (2) 0.2 ppb (3) N/A 10.3 μg/m3 (43) 43.0
 
Sept. 18, 2021, noon N/A N/A N/A 14.0 ppb (14) N/A 0.0 ppb (0) 4.0 ppb (4) 0.2 ppb (3) N/A 6.7 μg/m3 (28) 28.0
 
Sept. 18, 2021, 11 a.m. N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 2.0 ppb (2) 0.2 ppb (3) N/A 7.9 μg/m3 (33) 33.0
 
Sept. 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.8 μg/m3 (29) 29.0
 
Sept. 18, 2021, 9 a.m. N/A N/A N/A 20.0 ppb (19) N/A 0.0 ppb (0) 4.0 ppb (4) 0.2 ppb (3) N/A 7.5 μg/m3 (32) 32.0
 
Sept. 18, 2021, 8 a.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) 11.0 ppb (11) 0.2 ppb (3) N/A 6.2 μg/m3 (26) 26.0
 
Sept. 18, 2021, 7 a.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) 18.0 ppb (17) 0.2 ppb (3) N/A 5.9 μg/m3 (25) 25.0
 
Sept. 18, 2021, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (25) 0.2 ppb (3) N/A 5.5 μg/m3 (23) 25.0
 
Sept. 18, 2021, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (25) 0.2 ppb (3) N/A 4.4 μg/m3 (19) 25.0
 
Sept. 18, 2021, 4 a.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) 24.0 ppb (23) 0.2 ppb (3) N/A 6.9 μg/m3 (29) 29.0
 
Sept. 18, 2021, 3 a.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) 24.0 ppb (23) 0.2 ppb (3) N/A 6.7 μg/m3 (28) 28.0
 
Sept. 18, 2021, 2 a.m. N/A N/A N/A 11.0 ppb (11) N/A 0.0 ppb (0) 22.0 ppb (21) 0.2 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2021, 1 a.m. N/A N/A N/A 12.0 ppb (12) N/A 0.0 ppb (0) 21.0 ppb (20) 0.2 ppb (3) N/A 5.7 μg/m3 (24) 24.0
 
Sept. 18, 2021, midnight N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) N/A 5.0 μg/m3 (21) 26.0
 
Sept. 17, 2021, 11 p.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) N/A 5.2 μg/m3 (22) 26.0
 
Sept. 17, 2021, 10 p.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) 29.0 ppb (27) 0.2 ppb (3) N/A 7.2 μg/m3 (31) 31.0
 
Sept. 17, 2021, 9 p.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (28) 0.1 ppb (2) N/A 7.3 μg/m3 (31) 31.0
 
Sept. 17, 2021, 8 p.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) 28.0 ppb (26) 0.1 ppb (2) N/A 12.8 μg/m3 (53) 53.0
 
Sept. 17, 2021, 7 p.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 24.0 ppb (23) 0.2 ppb (3) N/A 3.4 μg/m3 (15) 23.0
 
Sept. 17, 2021, 6 p.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 22.0 ppb (21) 0.2 ppb (3) N/A 2.8 μg/m3 (12) 21.0
 
Sept. 17, 2021, 5 p.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) 20.0 ppb (19) 0.2 ppb (3) N/A 2.5 μg/m3 (11) 19.0
 
Sept. 17, 2021, 4 p.m. N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 18.0 ppb (17) 0.2 ppb (3) N/A 1.2 μg/m3 (5) 17.0
 
Sept. 17, 2021, 3 p.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 19.0 ppb (18) 0.2 ppb (3) N/A 0.7 μg/m3 (3) 18.0
 
Sept. 17, 2021, 2 p.m. N/A N/A N/A 13.0 ppb (13) N/A 0.0 ppb (0) 15.0 ppb (14) 0.2 ppb (3) N/A 0.9 μg/m3 (4) 14.0
 
Sept. 17, 2021, 1 p.m. N/A N/A N/A 15.0 ppb (15) N/A 1.0 ppb (2) 14.0 ppb (13) 0.2 ppb (3) N/A 0.7 μg/m3 (3) 15.0
 
Sept. 17, 2021, noon N/A N/A N/A 11.0 ppb (11) N/A 1.0 ppb (2) 16.0 ppb (15) 0.2 ppb (3) N/A 0.8 μg/m3 (4) 15.0
 
Sept. 17, 2021, 11 a.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 17.0 ppb (16) 0.2 ppb (3) N/A 0.7 μg/m3 (3) 16.0
 
Sept. 17, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.4 μg/m3 (2) 2.0
 
Sept. 17, 2021, 9 a.m. N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 8.0 ppb (8) 0.2 ppb (3) N/A 0.6 μg/m3 (3) 17.0
 
Sept. 17, 2021, 8 a.m. N/A N/A N/A 11.0 ppb (11) N/A 0.0 ppb (0) 12.0 ppb (12) 0.2 ppb (3) N/A 0.8 μg/m3 (4) 12.0
 
Sept. 17, 2021, 7 a.m. N/A N/A N/A 13.0 ppb (13) N/A 0.0 ppb (0) 10.0 ppb (10) 0.2 ppb (3) N/A 1.7 μg/m3 (8) 13.0
 
Sept. 17, 2021, 6 a.m. N/A N/A N/A 20.0 ppb (19) N/A 0.0 ppb (0) 5.0 ppb (5) 0.3 ppb (4) N/A 3.3 μg/m3 (14) 19.0
 
Sept. 17, 2021, 5 a.m. N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 10.0 ppb (10) 0.3 ppb (4) N/A 2.4 μg/m3 (10) 17.0
 
Sept. 17, 2021, 4 a.m. N/A N/A N/A 17.0 ppb (17) N/A 0.0 ppb (0) 13.0 ppb (13) 0.2 ppb (3) N/A 1.9 μg/m3 (8) 17.0
 
Sept. 17, 2021, 3 a.m. N/A N/A N/A 11.0 ppb (11) N/A 0.0 ppb (0) 18.0 ppb (17) 0.2 ppb (3) N/A 1.7 μg/m3 (8) 17.0
 
Sept. 17, 2021, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (25) 0.2 ppb (3) N/A 0.9 μg/m3 (4) 25.0
 
Sept. 17, 2021, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) 0.1 ppb (2) N/A 0.4 μg/m3 (2) 28.0
 
Sept. 17, 2021, midnight N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (30) 0.1 ppb (2) N/A 0.4 μg/m3 (2) 30.0
 
Sept. 16, 2021, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (30) 0.1 ppb (2) N/A 0.5 μg/m3 (3) 30.0
 
Sept. 16, 2021, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (30) 0.1 ppb (2) N/A 0.7 μg/m3 (3) 30.0
 
Sept. 16, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) 0.1 ppb (2) N/A 0.7 μg/m3 (3) 29.0
 
Sept. 16, 2021, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) 0.1 ppb (2) N/A 0.8 μg/m3 (4) 27.0
 
Sept. 16, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) 0.2 ppb (3) N/A 0.6 μg/m3 (3) 25.0
 
Sept. 16, 2021, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (24) 0.2 ppb (3) N/A 0.8 μg/m3 (4) 24.0
 
Sept. 16, 2021, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (21) 0.2 ppb (3) N/A 0.4 μg/m3 (2) 21.0
 
Sept. 16, 2021, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (19) 0.2 ppb (3) N/A 0.3 μg/m3 (2) 19.0
 
Sept. 16, 2021, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (19) 0.2 ppb (3) N/A 0.3 μg/m3 (2) 19.0
 
Sept. 16, 2021, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 20.0 ppb (19) 0.2 ppb (3) N/A 0.2 μg/m3 (1) 19.0
 
Sept. 16, 2021, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (21) 0.2 ppb (3) N/A 0.1 μg/m3 (1) 21.0
 
Sept. 16, 2021, noon N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) 0.2 ppb (3) N/A 0.1 μg/m3 (1) 24.0
 
Sept. 16, 2021, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (25) 0.1 ppb (2) N/A 0.0 μg/m3 (0) 25.0
 
Sept. 16, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A -0.1 μg/m3 (0) 0.0
Sept. 16, 2021, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (23) 0.1 ppb (2) N/A -0.5 μg/m3 (0) 23.0
 
Sept. 16, 2021, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (23) 0.2 ppb (3) N/A -0.5 μg/m3 (0) 23.0
 
Sept. 16, 2021, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (25) 0.2 ppb (3) N/A -0.2 μg/m3 (0) 25.0
 
Sept. 16, 2021, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (25) 0.2 ppb (3) N/A 0.0 μg/m3 (0) 25.0
 
Sept. 16, 2021, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (25) 0.2 ppb (3) N/A 0.1 μg/m3 (1) 25.0
 
Sept. 16, 2021, 4 a.m. N/A N/A N/A 3.0 ppb (3) N/A 2.0 ppb (3) 25.0 ppb (24) 0.3 ppb (4) N/A 0.4 μg/m3 (2) 24.0
 
Sept. 16, 2021, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 25.0 ppb (24) 0.3 ppb (4) N/A 0.3 μg/m3 (2) 24.0
 
Sept. 16, 2021, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (25) 0.1 ppb (2) N/A 0.1 μg/m3 (1) 25.0
 
Sept. 16, 2021, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 27.0 ppb (25) 0.1 ppb (2) N/A 0.3 μg/m3 (2) 25.0
 
Sept. 16, 2021, midnight N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (29) 0.2 ppb (3) N/A 0.2 μg/m3 (1) 29.0
 
Sept. 15, 2021, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (29) 0.2 ppb (3) N/A 0.3 μg/m3 (2) 29.0
 
Sept. 15, 2021, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 31.0 ppb (29) 0.2 ppb (3) N/A 0.4 μg/m3 (2) 29.0
 
Sept. 15, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (30) 0.2 ppb (3) N/A 0.3 μg/m3 (2) 30.0
 
Sept. 15, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (30) 0.2 ppb (3) N/A 0.3 μg/m3 (2) 30.0
 
Sept. 15, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 2.0 ppb (3) 31.0 ppb (29) 0.3 ppb (4) N/A 0.6 μg/m3 (3) 29.0
 
Sept. 15, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) 0.2 ppb (3) N/A 0.6 μg/m3 (3) 28.0
 
Sept. 15, 2021, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) 0.2 ppb (3) N/A 1.1 μg/m3 (5) 27.0
 
Sept. 15, 2021, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) N/A 0.7 μg/m3 (3) 26.0
 
Sept. 15, 2021, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (25) 0.2 ppb (3) N/A 0.5 μg/m3 (3) 25.0
 
Sept. 15, 2021, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) N/A 0.4 μg/m3 (2) 26.0
 
Sept. 15, 2021, noon N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (27) 0.2 ppb (3) N/A 0.4 μg/m3 (2) 27.0
 
Sept. 15, 2021, 11 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (32) 0.2 ppb (3) N/A 0.3 μg/m3 (2) 32.0
 
Sept. 15, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.5 μg/m3 (3) 3.0
 
Sept. 15, 2021, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (36) 0.2 ppb (3) N/A 0.3 μg/m3 (2) 36.0
 
Sept. 15, 2021, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (37) 0.2 ppb (3) N/A 0.3 μg/m3 (2) 37.0
 
Sept. 15, 2021, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) 0.2 ppb (3) N/A 1.3 μg/m3 (6) 35.0
 
Sept. 15, 2021, 6 a.m. N/A N/A N/A 13.0 ppb (13) N/A 0.0 ppb (0) 23.0 ppb (22) 0.2 ppb (3) N/A 6.4 μg/m3 (27) 27.0
 
Sept. 15, 2021, 5 a.m. N/A N/A N/A 11.0 ppb (11) N/A 0.0 ppb (0) 30.0 ppb (28) 0.2 ppb (3) N/A 2.8 μg/m3 (12) 28.0
 
Sept. 15, 2021, 4 a.m. N/A N/A N/A 15.0 ppb (15) N/A 0.0 ppb (0) 29.0 ppb (27) 0.1 ppb (2) N/A 2.5 μg/m3 (11) 27.0
 
Sept. 15, 2021, 3 a.m. N/A N/A N/A 17.0 ppb (17) N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) N/A 3.7 μg/m3 (16) 26.0
 
Sept. 15, 2021, 2 a.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 37.0 ppb (35) 0.1 ppb (2) N/A 2.9 μg/m3 (13) 35.0
 
Sept. 15, 2021, 1 a.m. N/A N/A N/A 12.0 ppb (12) N/A 0.0 ppb (0) 36.0 ppb (34) 0.2 ppb (3) N/A 4.9 μg/m3 (21) 34.0
 
Sept. 15, 2021, midnight N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 37.0 ppb (35) 0.1 ppb (2) N/A 3.7 μg/m3 (16) 35.0
 
Sept. 14, 2021, 11 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 41.0 ppb (38) 0.1 ppb (2) N/A 3.9 μg/m3 (17) 38.0
 
Sept. 14, 2021, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (39) 0.1 ppb (2) N/A 2.6 μg/m3 (11) 39.0
 
Sept. 14, 2021, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (38) 0.1 ppb (2) N/A 2.2 μg/m3 (10) 38.0
 
Sept. 14, 2021, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (38) 0.1 ppb (2) N/A 2.9 μg/m3 (13) 38.0
 
Sept. 14, 2021, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (35) 0.1 ppb (2) N/A 2.9 μg/m3 (13) 35.0
 
Sept. 14, 2021, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (33) 0.2 ppb (3) N/A 3.7 μg/m3 (16) 33.0
 
Sept. 14, 2021, 5 p.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 26.0 ppb (25) 0.2 ppb (3) N/A 4.2 μg/m3 (18) 25.0
 
Sept. 14, 2021, 4 p.m. N/A N/A N/A 15.0 ppb (15) N/A 1.0 ppb (2) 15.0 ppb (14) 0.2 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 14, 2021, 3 p.m. N/A N/A N/A 20.0 ppb (19) N/A 1.0 ppb (2) 8.0 ppb (8) 0.3 ppb (4) N/A 9.9 μg/m3 (42) 42.0
 
Sept. 14, 2021, 2 p.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (2) 6.0 ppb (6) 0.3 ppb (4) N/A 6.6 μg/m3 (28) 28.0
 
Sept. 14, 2021, 1 p.m. N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 3.0 ppb (3) 0.3 ppb (4) N/A 3.2 μg/m3 (14) 17.0
 
Sept. 14, 2021, noon N/A N/A N/A 16.0 ppb (16) N/A 0.0 ppb (0) 3.0 ppb (3) 0.3 ppb (4) N/A 2.9 μg/m3 (13) 16.0
 
Sept. 14, 2021, 11 a.m. N/A N/A N/A 14.0 ppb (14) N/A 0.0 ppb (0) 5.0 ppb (5) 0.2 ppb (3) N/A 2.0 μg/m3 (9) 14.0
 
Sept. 14, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.4 μg/m3 (15) 15.0
 
Sept. 14, 2021, 9 a.m. N/A N/A N/A 16.0 ppb (16) N/A 0.0 ppb (0) 7.0 ppb (7) 0.2 ppb (3) N/A 4.1 μg/m3 (18) 18.0
 
Sept. 14, 2021, 8 a.m. N/A N/A N/A 15.0 ppb (15) N/A 0.0 ppb (0) 10.0 ppb (10) 0.2 ppb (3) N/A 2.4 μg/m3 (10) 15.0
 
Sept. 14, 2021, 7 a.m. N/A N/A N/A 24.0 ppb (23) N/A 0.0 ppb (0) 4.0 ppb (4) 0.2 ppb (3) N/A 3.2 μg/m3 (14) 23.0
 
Sept. 14, 2021, 6 a.m. N/A N/A N/A 24.0 ppb (23) N/A 0.0 ppb (0) 4.0 ppb (4) 0.3 ppb (4) N/A 4.5 μg/m3 (19) 23.0
 
Sept. 14, 2021, 5 a.m. N/A N/A N/A 28.0 ppb (27) N/A 0.0 ppb (0) 3.0 ppb (3) 0.3 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Sept. 14, 2021, 4 a.m. N/A N/A N/A 27.0 ppb (26) N/A 0.0 ppb (0) 6.0 ppb (6) 0.3 ppb (4) N/A 5.1 μg/m3 (22) 26.0
 
Sept. 14, 2021, 3 a.m. N/A N/A N/A 17.0 ppb (17) N/A 0.0 ppb (0) 15.0 ppb (14) 0.2 ppb (3) N/A 4.5 μg/m3 (19) 19.0
 
Sept. 14, 2021, 2 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (25) 0.2 ppb (3) N/A 1.4 μg/m3 (6) 25.0
 
Sept. 14, 2021, 1 a.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) 28.0 ppb (26) 0.1 ppb (2) N/A 1.2 μg/m3 (5) 26.0
 
Sept. 14, 2021, midnight N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) N/A 1.1 μg/m3 (5) 32.0
 
Sept. 13, 2021, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) N/A 0.8 μg/m3 (4) 32.0
 
Sept. 13, 2021, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) 0.2 ppb (3) N/A 0.3 μg/m3 (2) 32.0
 
Sept. 13, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 33.0 ppb (31) 0.3 ppb (4) N/A 0.3 μg/m3 (2) 31.0
 
Sept. 13, 2021, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) 32.0 ppb (30) 0.3 ppb (4) N/A 0.3 μg/m3 (2) 30.0
 
Sept. 13, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) 0.2 ppb (3) N/A 0.7 μg/m3 (3) 29.0
 
Sept. 13, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) 0.2 ppb (3) N/A 0.6 μg/m3 (3) 28.0
 
Sept. 13, 2021, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (25) 0.2 ppb (3) N/A 1.2 μg/m3 (5) 25.0
 
Sept. 13, 2021, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 24.0 ppb (23) 0.2 ppb (3) N/A 0.6 μg/m3 (3) 23.0
 
Sept. 13, 2021, 3 p.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) 20.0 ppb (19) 0.2 ppb (3) N/A 1.0 μg/m3 (5) 19.0
 
Sept. 13, 2021, 2 p.m. N/A N/A N/A 14.0 ppb (14) N/A 3.0 ppb (5) 13.0 ppb (13) 0.5 ppb (6) N/A 4.5 μg/m3 (19) 19.0