ID: 2057

AQSQID: 000100140

Site Name: Tsawwassen

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

Updated: July 30, 2021, 6:55 p.m.

Location: Delta (Milsom Wynd), CC

Reporting: True, Located: True

Current AQI: 23.0

Delta (Milsom Wynd) CC, CA: 49.009869, -123.082017

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 30, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 5.5 μg/m3 (23) 23.0
 
July 30, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 6.0 μg/m3 (25) 25.0
 
July 30, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 4.2 μg/m3 (18) 18.0
 
July 30, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 2.9 μg/m3 (13) 13.0
 
July 30, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 2.9 μg/m3 (13) 13.0
 
July 30, 2021, noon N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 3.1 μg/m3 (13) 13.0
 
July 30, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A N/A 2.5 μg/m3 (11) 11.0
 
July 30, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 2.5 μg/m3 (11) 13.0
 
July 30, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 3.0 μg/m3 (13) 14.0
 
July 30, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 3.2 μg/m3 (14) 22.0
 
July 30, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 3.6 μg/m3 (16) 25.0
 
July 30, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 4.8 μg/m3 (20) 28.0
 
July 30, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 4.7 μg/m3 (20) 38.0
 
July 30, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 4.6 μg/m3 (20) 37.0
 
July 30, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 3.9 μg/m3 (17) 29.0
 
July 30, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 3.3 μg/m3 (14) 28.0
 
July 30, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 3.7 μg/m3 (16) 23.0
 
July 30, 2021, midnight N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 5.0 μg/m3 (21) 27.0
 
July 29, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 4.8 μg/m3 (20) 34.0
 
July 29, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 5.8 μg/m3 (25) 30.0
 
July 29, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 5.1 μg/m3 (22) 41.0
 
July 29, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 4.7 μg/m3 (20) 35.0
 
July 29, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 3.5 μg/m3 (15) 35.0
 
July 29, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 3.2 μg/m3 (14) 29.0
 
July 29, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 1.6 μg/m3 (7) 21.0
 
July 29, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 0.9 μg/m3 (4) 13.0
 
July 29, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 1.1 μg/m3 (5) 11.0
 
July 29, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 1.5 μg/m3 (7) 11.0
 
July 29, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 1.7 μg/m3 (8) 9.0
 
July 29, 2021, noon N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 2.2 μg/m3 (10) 11.0
 
July 29, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 1.6 μg/m3 (7) 11.0
 
July 29, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 1.8 μg/m3 (8) 13.0
 
July 29, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 4.1 μg/m3 (18) 18.0
 
July 29, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 8.2 μg/m3 (35) 35.0
 
July 29, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 3.2 μg/m3 (14) 24.0
 
July 29, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 3.1 μg/m3 (13) 22.0
 
July 29, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 2.8 μg/m3 (12) 23.0
 
July 29, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 3.8 μg/m3 (16) 25.0
 
July 29, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 3.5 μg/m3 (15) 39.0
 
July 29, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 2.9 μg/m3 (13) 35.0
 
July 29, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 1.9 μg/m3 (8) 42.0
 
July 29, 2021, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 1.9 μg/m3 (8) 37.0
 
July 28, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 3.8 μg/m3 (16) 24.0
 
July 28, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 4.0 μg/m3 (17) 27.0
 
July 28, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 4.5 μg/m3 (19) 35.0
 
July 28, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 3.7 μg/m3 (16) 37.0
 
July 28, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 3.4 μg/m3 (15) 31.0
 
July 28, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 2.3 μg/m3 (10) 22.0
 
July 28, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 2.2 μg/m3 (10) 21.0
 
July 28, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 2.3 μg/m3 (10) 18.0
 
July 28, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 2.0 μg/m3 (9) 16.0
 
July 28, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 2.4 μg/m3 (10) 15.0
 
July 28, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 2.0 μg/m3 (9) 17.0
 
July 28, 2021, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 1.6 μg/m3 (7) 21.0
 
July 28, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 1.6 μg/m3 (7) 19.0
 
July 28, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 1.9 μg/m3 (8) 19.0
 
July 28, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 2.4 μg/m3 (10) 16.0
 
July 28, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 3.0 μg/m3 (13) 14.0
 
July 28, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 4.8 μg/m3 (20) 20.0
 
July 28, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 5.4 μg/m3 (23) 25.0
 
July 28, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 5.8 μg/m3 (25) 29.0
 
July 28, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 8.0 μg/m3 (34) 34.0
 
July 28, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 5.8 μg/m3 (25) 29.0
 
July 28, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 4.8 μg/m3 (20) 34.0
 
July 28, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 4.6 μg/m3 (20) 36.0
 
July 28, 2021, midnight N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 4.3 μg/m3 (18) 34.0
 
July 27, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 4.1 μg/m3 (18) 21.0
 
July 27, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 3.7 μg/m3 (16) 19.0
 
July 27, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 5.1 μg/m3 (22) 22.0
 
July 27, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 5.8 μg/m3 (25) 25.0
 
July 27, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 4.6 μg/m3 (20) 25.0
 
July 27, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 3.5 μg/m3 (15) 22.0
 
July 27, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 3.0 μg/m3 (13) 20.0
 
July 27, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 17.0
 
July 27, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 3.1 μg/m3 (13) 13.0
 
July 27, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 3.4 μg/m3 (15) 15.0
 
July 27, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 2.8 μg/m3 (12) 12.0
 
July 27, 2021, noon N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 2.7 μg/m3 (12) 13.0
 
July 27, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 2.5 μg/m3 (11) 11.0
 
July 27, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A N/A 2.9 μg/m3 (13) 13.0
 
July 27, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 2.8 μg/m3 (12) 12.0
 
July 27, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 2.9 μg/m3 (13) 13.0
 
July 27, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 4.1 μg/m3 (18) 18.0
 
July 27, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 4.1 μg/m3 (18) 22.0
 
July 27, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 6.2 μg/m3 (26) 26.0
 
July 27, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 7.9 μg/m3 (33) 33.0
 
July 27, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 8.1 μg/m3 (34) 35.0
 
July 27, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 7.5 μg/m3 (32) 39.0
 
July 27, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 7.5 μg/m3 (32) 36.0
 
July 27, 2021, midnight N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 7.1 μg/m3 (30) 36.0
 
July 26, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 4.6 μg/m3 (20) 38.0
 
July 26, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 2.9 μg/m3 (13) 31.0
 
July 26, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 2.8 μg/m3 (12) 27.0
 
July 26, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 2.3 μg/m3 (10) 25.0
 
July 26, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 2.2 μg/m3 (10) 22.0
 
July 26, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 2.1 μg/m3 (9) 17.0
 
July 26, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 1.9 μg/m3 (8) 14.0
 
July 26, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 1.5 μg/m3 (7) 13.0
 
July 26, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 1.9 μg/m3 (8) 12.0
 
July 26, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 1.7 μg/m3 (8) 12.0
 
July 26, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 1.6 μg/m3 (7) 12.0
 
July 26, 2021, noon N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 1.6 μg/m3 (7) 12.0
 
July 26, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 1.9 μg/m3 (8) 12.0
 
July 26, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 2.3 μg/m3 (10) 13.0
 
July 26, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 2.1 μg/m3 (9) 13.0
 
July 26, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 2.2 μg/m3 (10) 14.0
 
July 26, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 2.5 μg/m3 (11) 16.0
 
July 26, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 2.7 μg/m3 (12) 16.0
 
July 26, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 3.7 μg/m3 (16) 17.0
 
July 26, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 5.0 μg/m3 (21) 21.0
 
July 26, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 6.5 μg/m3 (28) 28.0
 
July 26, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 7.0 μg/m3 (30) 30.0
 
July 26, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 8.2 μg/m3 (35) 35.0
 
July 26, 2021, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 6.3 μg/m3 (27) 35.0
 
July 25, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 5.0 μg/m3 (21) 36.0
 
July 25, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 5.0 μg/m3 (21) 35.0
 
July 25, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 4.6 μg/m3 (20) 32.0
 
July 25, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 3.2 μg/m3 (14) 25.0
 
July 25, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 3.5 μg/m3 (15) 22.0
 
July 25, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 3.2 μg/m3 (14) 19.0
 
July 25, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 2.8 μg/m3 (12) 17.0
 
July 25, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 2.9 μg/m3 (13) 15.0
 
July 25, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 4.6 μg/m3 (20) 20.0
 
July 25, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 5.9 μg/m3 (25) 25.0
 
July 25, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 5.6 μg/m3 (24) 24.0
 
July 25, 2021, noon N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 6.6 μg/m3 (28) 28.0
 
July 25, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 6.4 μg/m3 (27) 27.0
 
July 25, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 6.6 μg/m3 (28) 28.0
 
July 25, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 6.1 μg/m3 (26) 26.0
 
July 25, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 4.3 μg/m3 (18) 18.0
 
July 25, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 3.5 μg/m3 (15) 16.0
 
July 25, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 3.7 μg/m3 (16) 18.0
 
July 25, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 3.5 μg/m3 (15) 25.0
 
July 25, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 3.7 μg/m3 (16) 37.0
 
July 25, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 4.0 μg/m3 (17) 42.0
 
July 25, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 3.7 μg/m3 (16) 40.0
 
July 25, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 2.4 μg/m3 (10) 31.0
 
July 25, 2021, midnight N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 3.6 μg/m3 (16) 38.0
 
July 24, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 2.9 μg/m3 (13) 38.0
 
July 24, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 2.7 μg/m3 (12) 34.0
 
July 24, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 3.4 μg/m3 (15) 28.0
 
July 24, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 3.4 μg/m3 (15) 33.0
 
July 24, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 3.1 μg/m3 (13) 23.0
 
July 24, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 3.0 μg/m3 (13) 16.0
 
July 24, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 2.0 μg/m3 (9) 14.0
 
July 24, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 1.9 μg/m3 (8) 14.0
 
July 24, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 2.0 μg/m3 (9) 13.0
 
July 24, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 1.8 μg/m3 (8) 13.0
 
July 24, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 1.6 μg/m3 (7) 9.0
 
July 24, 2021, noon N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 1.3 μg/m3 (6) 9.0
 
July 24, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 1.1 μg/m3 (5) 10.0
 
July 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 0.8 μg/m3 (4) 13.0
 
July 24, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 0.7 μg/m3 (3) 13.0
 
July 24, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 0.6 μg/m3 (3) 10.0
 
July 24, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 0.9 μg/m3 (4) 13.0
 
July 24, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 1.0 μg/m3 (5) 16.0
 
July 24, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 1.0 μg/m3 (5) 19.0
 
July 24, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 0.6 μg/m3 (3) 26.0
 
July 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 0.6 μg/m3 (3) 29.0
 
July 24, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 0.4 μg/m3 (2) 31.0
 
July 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 0.4 μg/m3 (2) 31.0
 
July 24, 2021, midnight N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 0.8 μg/m3 (4) 29.0
 
July 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 0.6 μg/m3 (3) 31.0
 
July 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 0.9 μg/m3 (4) 30.0
 
July 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 0.9 μg/m3 (4) 29.0
 
July 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 0.9 μg/m3 (4) 27.0
 
July 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 1.2 μg/m3 (5) 26.0
 
July 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 1.4 μg/m3 (6) 24.0