ID: 2159

AQSQID: 000101005

Site Name: Abbotsford Airport

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

Updated: Feb. 25, 2021, 6:32 p.m.

Location: Abbotsford (S Poplar), CC

Reporting: True, Located: True

Current AQI: 33.0

Abbotsford (S Poplar) CC, CA: 49.021506, -122.326556

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 25, 2021, 5 p.m. N/A 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) 0.12 ppb (2) 6.5 μg/m3 (7) 2.2 μg/m3 (10) 33.0
 
Feb. 25, 2021, 4 p.m. N/A 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) 0.12 ppb (2) 5.2 μg/m3 (5) 1.5 μg/m3 (7) 31.0
 
Feb. 25, 2021, 3 p.m. N/A 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) 0.12 ppb (2) 4.0 μg/m3 (4) 0.6 μg/m3 (3) 31.0
 
Feb. 25, 2021, 2 p.m. N/A 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) 0.11 ppb (2) 0.9 μg/m3 (1) 0.4 μg/m3 (2) 31.0
 
Feb. 25, 2021, 1 p.m. N/A 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) 0.11 ppb (2) 1.2 μg/m3 (2) 0.4 μg/m3 (2) 32.0
 
Feb. 25, 2021, noon N/A 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (34) 0.11 ppb (2) 2.6 μg/m3 (3) 0.3 μg/m3 (2) 34.0
 
Feb. 25, 2021, 11 a.m. N/A 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (37) 0.1 ppb (2) 0.0 μg/m3 (0) 0.4 μg/m3 (2) 37.0
 
Feb. 25, 2021, 10 a.m. N/A 0.5 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 39.0 ppb (37) 0.1 ppb (2) 0.0 μg/m3 (0) 0.4 μg/m3 (2) 37.0
 
Feb. 25, 2021, 9 a.m. N/A 0.5 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (37) 0.11 ppb (2) 2.0 μg/m3 (2) 0.6 μg/m3 (3) 37.0
 
Feb. 25, 2021, 8 a.m. N/A 0.3 ppb (1) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 24.0 ppb (23) 0.15 ppb (2) 4.7 μg/m3 (5) 3.4 μg/m3 (15) 23.0
 
Feb. 25, 2021, 7 a.m. N/A 0.9 ppb (1) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 19.0 ppb (18) 0.17 ppb (3) 7.1 μg/m3 (7) 6.5 μg/m3 (28) 28.0
 
Feb. 25, 2021, 6 a.m. N/A 0.6 ppb (1) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 14.0 ppb (13) 0.2 ppb (3) 12.8 μg/m3 (12) 9.1 μg/m3 (38) 38.0
 
Feb. 25, 2021, 5 a.m. N/A 0.9 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 13.0 ppb (13) 0.19 ppb (3) 12.1 μg/m3 (12) 9.4 μg/m3 (40) 40.0
 
Feb. 25, 2021, 4 a.m. N/A 1.4 ppb (2) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 13.0 ppb (13) 0.21 ppb (3) 11.4 μg/m3 (11) 11.3 μg/m3 (48) 48.0
 
Feb. 25, 2021, 3 a.m. N/A 1.6 ppb (2) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 21.0 ppb (20) 0.17 ppb (3) 13.8 μg/m3 (13) 9.6 μg/m3 (40) 40.0
 
Feb. 25, 2021, 2 a.m. N/A 0.4 ppb (1) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 23.0 ppb (22) 0.15 ppb (2) 12.8 μg/m3 (12) 7.9 μg/m3 (33) 33.0
 
Feb. 25, 2021, 1 a.m. N/A 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (28) 0.12 ppb (2) 7.3 μg/m3 (7) 6.4 μg/m3 (27) 28.0
 
Feb. 25, 2021, midnight N/A 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (32) 0.12 ppb (2) 4.4 μg/m3 (5) 6.6 μg/m3 (28) 32.0
 
Feb. 24, 2021, 11 p.m. N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) 0.12 ppb (2) 4.7 μg/m3 (5) 3.5 μg/m3 (15) 33.0
 
Feb. 24, 2021, 10 p.m. N/A 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) 0.13 ppb (2) 4.7 μg/m3 (5) 3.6 μg/m3 (16) 32.0
 
Feb. 24, 2021, 9 p.m. N/A 1.3 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) 0.14 ppb (2) 7.1 μg/m3 (7) 4.5 μg/m3 (19) 28.0
 
Feb. 24, 2021, 8 p.m. N/A 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) 0.13 ppb (2) 6.1 μg/m3 (6) 2.3 μg/m3 (10) 31.0
 
Feb. 24, 2021, 7 p.m. N/A 1.8 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (29) 0.14 ppb (2) 6.8 μg/m3 (7) 2.0 μg/m3 (9) 29.0
 
Feb. 24, 2021, 6 p.m. N/A 3.0 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (26) 0.12 ppb (2) 3.0 μg/m3 (3) 1.2 μg/m3 (5) 26.0
 
Feb. 24, 2021, 5 p.m. N/A 6.3 ppb (6) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 20.0 ppb (19) 0.13 ppb (2) 8.1 μg/m3 (8) 1.0 μg/m3 (5) 19.0
 
Feb. 24, 2021, 4 p.m. N/A 10.3 ppb (10) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 13.0 ppb (13) 0.17 ppb (3) 11.3 μg/m3 (11) 2.1 μg/m3 (9) 16.0
 
Feb. 24, 2021, 3 p.m. N/A 11.2 ppb (11) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 5.0 ppb (5) 0.23 ppb (3) 11.7 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
Feb. 24, 2021, 2 p.m. N/A 5.5 ppb (6) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 4.0 ppb (4) 0.19 ppb (3) 14.6 μg/m3 (14) 5.8 μg/m3 (25) 25.0
 
Feb. 24, 2021, 1 p.m. N/A 0.5 ppb (1) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 7.0 ppb (7) 0.17 ppb (3) 14.8 μg/m3 (14) 4.9 μg/m3 (21) 21.0
 
Feb. 24, 2021, noon N/A 1.5 ppb (2) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 11.0 ppb (11) 0.15 ppb (2) 8.1 μg/m3 (8) 3.4 μg/m3 (15) 15.0
 
Feb. 24, 2021, 11 a.m. N/A 0.8 ppb (1) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 12.0 ppb (12) 0.17 ppb (3) 7.2 μg/m3 (7) 3.6 μg/m3 (16) 16.0
 
Feb. 24, 2021, 10 a.m. N/A 1.0 ppb (1) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 16.0 ppb (15) 0.15 ppb (2) 10.4 μg/m3 (10) 3.4 μg/m3 (15) 15.0
 
Feb. 24, 2021, 9 a.m. N/A 0.7 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 18.0 ppb (17) 0.16 ppb (3) 10.7 μg/m3 (10) 4.0 μg/m3 (17) 17.0
 
Feb. 24, 2021, 8 a.m. N/A 0.3 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (25) 0.15 ppb (2) 12.7 μg/m3 (12) 2.8 μg/m3 (12) 25.0
 
Feb. 24, 2021, 7 a.m. N/A 0.6 ppb (1) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 24.0 ppb (23) 0.15 ppb (2) 12.3 μg/m3 (12) 3.6 μg/m3 (16) 23.0
 
Feb. 24, 2021, 6 a.m. N/A 0.7 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 27.0 ppb (25) 0.15 ppb (2) 12.1 μg/m3 (12) 4.1 μg/m3 (18) 25.0
 
Feb. 24, 2021, 5 a.m. N/A 0.7 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (29) 0.12 ppb (2) 16.1 μg/m3 (15) 5.2 μg/m3 (22) 29.0
 
Feb. 24, 2021, 4 a.m. N/A 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) 0.11 ppb (2) 8.0 μg/m3 (8) 5.2 μg/m3 (22) 33.0
 
Feb. 24, 2021, 3 a.m. N/A 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) 0.11 ppb (2) 7.6 μg/m3 (8) 4.9 μg/m3 (21) 34.0
 
Feb. 24, 2021, 2 a.m. N/A 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (36) 0.11 ppb (2) 9.3 μg/m3 (9) 4.9 μg/m3 (21) 36.0
 
Feb. 24, 2021, 1 a.m. N/A 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (36) 0.1 ppb (2) 5.7 μg/m3 (6) 4.3 μg/m3 (18) 36.0
 
Feb. 24, 2021, midnight N/A 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (36) 0.11 ppb (2) 9.8 μg/m3 (10) 2.5 μg/m3 (11) 36.0
 
Feb. 23, 2021, 11 p.m. N/A 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (38) 0.1 ppb (2) 6.4 μg/m3 (6) 1.3 μg/m3 (6) 38.0
 
Feb. 23, 2021, 10 p.m. N/A 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 40.0 ppb (38) 0.11 ppb (2) 0.0 μg/m3 (0) 0.8 μg/m3 (4) 38.0
 
Feb. 23, 2021, 9 p.m. N/A 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) 0.13 ppb (2) 6.6 μg/m3 (7) 1.5 μg/m3 (7) 34.0
 
Feb. 23, 2021, 8 p.m. N/A 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) 0.12 ppb (2) 2.4 μg/m3 (3) 1.2 μg/m3 (5) 34.0
 
Feb. 23, 2021, 7 p.m. N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) 0.12 ppb (2) 4.5 μg/m3 (5) N/A 35.0
 
Feb. 23, 2021, 6 p.m. N/A 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) 0.13 ppb (2) 6.3 μg/m3 (6) 1.5 μg/m3 (7) 34.0
 
Feb. 23, 2021, 5 p.m. N/A 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) 0.14 ppb (2) 7.6 μg/m3 (8) 2.1 μg/m3 (9) 32.0
 
Feb. 23, 2021, 4 p.m. N/A 0.9 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (30) 0.15 ppb (2) 8.5 μg/m3 (8) 4.0 μg/m3 (17) 30.0
 
Feb. 23, 2021, 3 p.m. N/A 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (30) 0.15 ppb (2) 7.2 μg/m3 (7) 2.5 μg/m3 (11) 30.0
 
Feb. 23, 2021, 2 p.m. N/A 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) 0.14 ppb (2) 6.1 μg/m3 (6) 2.3 μg/m3 (10) 31.0
 
Feb. 23, 2021, 1 p.m. N/A 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) 0.14 ppb (2) 6.1 μg/m3 (6) 2.1 μg/m3 (9) 31.0
 
Feb. 23, 2021, noon N/A 0.5 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) 0.15 ppb (2) 5.1 μg/m3 (5) 2.1 μg/m3 (9) 31.0
 
Feb. 23, 2021, 11 a.m. N/A 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) 0.14 ppb (2) 4.0 μg/m3 (4) 1.4 μg/m3 (6) 32.0
 
Feb. 23, 2021, 10 a.m. N/A 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) 0.14 ppb (2) 4.5 μg/m3 (5) 1.1 μg/m3 (5) 31.0
 
Feb. 23, 2021, 9 a.m. N/A 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) 0.14 ppb (2) 6.6 μg/m3 (7) 1.2 μg/m3 (5) 33.0
 
Feb. 23, 2021, 8 a.m. N/A 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (36) 0.13 ppb (2) 7.4 μg/m3 (7) 1.2 μg/m3 (5) 36.0
 
Feb. 23, 2021, 7 a.m. N/A 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 39.0 ppb (37) 0.13 ppb (2) 6.4 μg/m3 (6) 1.2 μg/m3 (5) 37.0
 
Feb. 23, 2021, 6 a.m. N/A 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (38) 0.13 ppb (2) 5.5 μg/m3 (6) 1.2 μg/m3 (5) 38.0
 
Feb. 23, 2021, 5 a.m. N/A 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (38) 0.14 ppb (2) 7.8 μg/m3 (8) 2.2 μg/m3 (10) 38.0
 
Feb. 23, 2021, 4 a.m. N/A 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (38) 0.14 ppb (2) 8.4 μg/m3 (8) 2.7 μg/m3 (12) 38.0
 
Feb. 23, 2021, 3 a.m. N/A 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (38) 0.13 ppb (2) 6.0 μg/m3 (6) 2.5 μg/m3 (11) 38.0
 
Feb. 23, 2021, 2 a.m. N/A 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (38) 0.12 ppb (2) 5.4 μg/m3 (5) 1.9 μg/m3 (8) 38.0
 
Feb. 23, 2021, 1 a.m. N/A 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 39.0 ppb (37) 0.12 ppb (2) 6.3 μg/m3 (6) 2.1 μg/m3 (9) 37.0
 
Feb. 23, 2021, midnight N/A 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 40.0 ppb (38) 0.12 ppb (2) 3.2 μg/m3 (3) 1.3 μg/m3 (6) 38.0
 
Feb. 22, 2021, 11 p.m. N/A 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 38.0 ppb (36) 0.1 ppb (2) 0.3 μg/m3 (1) 0.4 μg/m3 (2) 36.0
 
Feb. 22, 2021, 10 p.m. N/A 0.9 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (36) 0.11 ppb (2) 0.7 μg/m3 (1) 0.3 μg/m3 (2) 36.0
 
Feb. 22, 2021, 9 p.m. N/A 0.9 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (32) 0.12 ppb (2) 3.6 μg/m3 (4) 0.4 μg/m3 (2) 32.0
 
Feb. 22, 2021, 8 p.m. N/A 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) 0.12 ppb (2) 3.4 μg/m3 (4) 0.2 μg/m3 (1) 32.0
 
Feb. 22, 2021, 7 p.m. N/A 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (32) 0.12 ppb (2) 2.2 μg/m3 (3) 0.2 μg/m3 (1) 32.0
 
Feb. 22, 2021, 6 p.m. N/A 0.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (30) 0.1 ppb (2) 3.1 μg/m3 (3) 0.2 μg/m3 (1) 30.0
 
Feb. 22, 2021, 5 p.m. N/A 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (30) 0.09 ppb (2) 2.9 μg/m3 (3) 0.3 μg/m3 (2) 30.0
 
Feb. 22, 2021, 4 p.m. N/A 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (31) 0.09 ppb (2) 3.7 μg/m3 (4) 0.2 μg/m3 (1) 31.0
 
Feb. 22, 2021, 3 p.m. N/A 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) 0.09 ppb (2) 2.9 μg/m3 (3) 0.2 μg/m3 (1) 31.0
 
Feb. 22, 2021, 2 p.m. N/A 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) 0.09 ppb (2) 3.2 μg/m3 (3) 0.1 μg/m3 (1) 32.0
 
Feb. 22, 2021, 1 p.m. N/A 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) 2.5 μg/m3 (3) 0.0 μg/m3 (0) 32.0
 
Feb. 22, 2021, noon N/A 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 35.0 ppb (33) 0.12 ppb (2) 2.7 μg/m3 (3) 0.0 μg/m3 (0) 33.0
 
Feb. 22, 2021, 11 a.m. N/A 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) 3.0 μg/m3 (3) 0.0 μg/m3 (0) 32.0
 
Feb. 22, 2021, 10 a.m. N/A 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) 3.1 μg/m3 (3) 0.0 μg/m3 (0) 32.0
 
Feb. 22, 2021, 9 a.m. N/A 0.5 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) 0.11 ppb (2) 3.2 μg/m3 (3) 0.0 μg/m3 (0) 32.0
 
Feb. 22, 2021, 8 a.m. N/A 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) 3.9 μg/m3 (4) 0.0 μg/m3 (0) 32.0
 
Feb. 22, 2021, 7 a.m. N/A 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) 3.6 μg/m3 (4) 0.0 μg/m3 (0) 32.0
 
Feb. 22, 2021, 6 a.m. N/A 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) 3.0 μg/m3 (3) 0.5 μg/m3 (3) 33.0
 
Feb. 22, 2021, 5 a.m. N/A 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) 0.11 ppb (2) 1.8 μg/m3 (2) 0.7 μg/m3 (3) 33.0
 
Feb. 22, 2021, 4 a.m. N/A 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) 0.11 ppb (2) 4.7 μg/m3 (5) 0.9 μg/m3 (4) 33.0
 
Feb. 22, 2021, 3 a.m. N/A 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) 0.12 ppb (2) 3.0 μg/m3 (3) 1.1 μg/m3 (5) 33.0
 
Feb. 22, 2021, 2 a.m. N/A 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) 0.12 ppb (2) 2.5 μg/m3 (3) 1.1 μg/m3 (5) 33.0
 
Feb. 22, 2021, 1 a.m. N/A 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) 0.12 ppb (2) 2.0 μg/m3 (2) 0.8 μg/m3 (4) 33.0
 
Feb. 22, 2021, midnight N/A 0.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) 0.13 ppb (2) 4.1 μg/m3 (4) 0.9 μg/m3 (4) 34.0
 
Feb. 21, 2021, 11 p.m. N/A 0.4 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) 0.12 ppb (2) 3.0 μg/m3 (3) 0.9 μg/m3 (4) 34.0
 
Feb. 21, 2021, 10 p.m. N/A 0.4 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) 0.11 ppb (2) 3.7 μg/m3 (4) 0.9 μg/m3 (4) 34.0
 
Feb. 21, 2021, 9 p.m. N/A 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 37.0 ppb (35) 0.1 ppb (2) 3.4 μg/m3 (4) 0.7 μg/m3 (3) 35.0
 
Feb. 21, 2021, 8 p.m. N/A 0.5 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) 0.1 ppb (2) 4.5 μg/m3 (5) 0.5 μg/m3 (3) 34.0
 
Feb. 21, 2021, 7 p.m. N/A 0.5 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 37.0 ppb (35) 0.11 ppb (2) 4.6 μg/m3 (5) 0.5 μg/m3 (3) 35.0
 
Feb. 21, 2021, 6 p.m. N/A 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 37.0 ppb (35) 0.12 ppb (2) 3.6 μg/m3 (4) 0.4 μg/m3 (2) 35.0
 
Feb. 21, 2021, 5 p.m. N/A 0.4 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 35.0 ppb (33) 0.13 ppb (2) 2.7 μg/m3 (3) 0.3 μg/m3 (2) 33.0
 
Feb. 21, 2021, 4 p.m. N/A 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) 0.13 ppb (2) 3.8 μg/m3 (4) 0.3 μg/m3 (2) 33.0
 
Feb. 21, 2021, 3 p.m. N/A 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 35.0 ppb (33) 0.12 ppb (2) 3.8 μg/m3 (4) 0.2 μg/m3 (1) 33.0
 
Feb. 21, 2021, 2 p.m. N/A 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) 0.11 ppb (2) 4.2 μg/m3 (4) 0.1 μg/m3 (1) 33.0
 
Feb. 21, 2021, 1 p.m. N/A 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (34) 0.12 ppb (2) 3.2 μg/m3 (3) 0.1 μg/m3 (1) 34.0
 
Feb. 21, 2021, noon N/A 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 35.0 ppb (33) 0.13 ppb (2) 3.7 μg/m3 (4) 0.1 μg/m3 (1) 33.0
 
Feb. 21, 2021, 11 a.m. N/A 0.5 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) 0.12 ppb (2) 2.3 μg/m3 (3) 0.3 μg/m3 (2) 33.0
 
Feb. 21, 2021, 10 a.m. N/A 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) 0.12 ppb (2) 2.2 μg/m3 (3) 0.5 μg/m3 (3) 33.0
 
Feb. 21, 2021, 9 a.m. N/A 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) 0.12 ppb (2) 2.5 μg/m3 (3) 0.4 μg/m3 (2) 32.0
 
Feb. 21, 2021, 8 a.m. N/A 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) 0.11 ppb (2) 3.1 μg/m3 (3) 0.5 μg/m3 (3) 32.0
 
Feb. 21, 2021, 7 a.m. N/A 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) 0.12 ppb (2) 2.3 μg/m3 (3) 0.6 μg/m3 (3) 31.0
 
Feb. 21, 2021, 6 a.m. N/A 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) 0.11 ppb (2) 2.7 μg/m3 (3) 1.1 μg/m3 (5) 29.0
 
Feb. 21, 2021, 5 a.m. N/A 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) 0.11 ppb (2) 7.2 μg/m3 (7) 2.5 μg/m3 (11) 29.0
 
Feb. 21, 2021, 4 a.m. N/A 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) 0.11 ppb (2) 5.6 μg/m3 (6) 3.8 μg/m3 (16) 32.0
 
Feb. 21, 2021, 3 a.m. N/A 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 37.0 ppb (35) 0.11 ppb (2) 5.6 μg/m3 (6) 3.3 μg/m3 (14) 35.0
 
Feb. 21, 2021, 2 a.m. N/A 0.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 38.0 ppb (36) 0.11 ppb (2) 5.3 μg/m3 (5) 3.2 μg/m3 (14) 36.0
 
Feb. 21, 2021, 1 a.m. N/A 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) 0.12 ppb (2) 5.9 μg/m3 (6) 4.7 μg/m3 (20) 33.0
 
Feb. 21, 2021, midnight N/A 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) 0.12 ppb (2) 8.5 μg/m3 (8) 5.1 μg/m3 (22) 33.0
 
Feb. 20, 2021, 11 p.m. N/A 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) 0.13 ppb (2) 8.9 μg/m3 (9) 6.7 μg/m3 (28) 32.0
 
Feb. 20, 2021, 10 p.m. N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) 0.12 ppb (2) 6.5 μg/m3 (7) 4.4 μg/m3 (19) 33.0
 
Feb. 20, 2021, 9 p.m. N/A 0.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) 0.11 ppb (2) 4.7 μg/m3 (5) 3.7 μg/m3 (16) 34.0
 
Feb. 20, 2021, 8 p.m. N/A 0.5 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) 0.11 ppb (2) 6.5 μg/m3 (7) 3.6 μg/m3 (16) 34.0
 
Feb. 20, 2021, 7 p.m. N/A 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 35.0 ppb (33) 0.12 ppb (2) 6.6 μg/m3 (7) 3.7 μg/m3 (16) 33.0
 
Feb. 20, 2021, 6 p.m. N/A 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) 0.12 ppb (2) 2.8 μg/m3 (3) 2.4 μg/m3 (10) 32.0
 
Feb. 20, 2021, 5 p.m. N/A 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) 0.12 ppb (2) 4.3 μg/m3 (4) 3.0 μg/m3 (13) 27.0
 
Feb. 20, 2021, 4 p.m. N/A 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (25) 0.14 ppb (2) 6.7 μg/m3 (7) 2.7 μg/m3 (12) 25.0
 
Feb. 20, 2021, 3 p.m. N/A 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (25) 0.12 ppb (2) 6.1 μg/m3 (6) 2.3 μg/m3 (10) 25.0
 
Feb. 20, 2021, 2 p.m. N/A 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (26) 0.11 ppb (2) 5.9 μg/m3 (6) 2.3 μg/m3 (10) 26.0
 
Feb. 20, 2021, 1 p.m. N/A 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (26) 0.11 ppb (2) 6.5 μg/m3 (7) 2.3 μg/m3 (10) 26.0
 
Feb. 20, 2021, noon N/A 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) 0.12 ppb (2) 4.8 μg/m3 (5) 2.5 μg/m3 (11) 25.0
 
Feb. 20, 2021, 11 a.m. N/A 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (25) 0.12 ppb (2) 4.0 μg/m3 (4) 2.5 μg/m3 (11) 25.0
 
Feb. 20, 2021, 10 a.m. N/A 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (25) 0.11 ppb (2) 4.6 μg/m3 (5) 2.2 μg/m3 (10) 25.0
 
Feb. 20, 2021, 9 a.m. N/A 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (25) 0.13 ppb (2) 4.6 μg/m3 (5) 3.4 μg/m3 (15) 25.0
 
Feb. 20, 2021, 8 a.m. N/A 0.4 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 19.0 ppb (18) 0.16 ppb (3) 7.8 μg/m3 (8) 6.4 μg/m3 (27) 27.0
 
Feb. 20, 2021, 7 a.m. N/A 0.4 ppb (1) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 19.0 ppb (18) 0.16 ppb (3) 7.5 μg/m3 (7) 4.3 μg/m3 (18) 18.0
 
Feb. 20, 2021, 6 a.m. N/A 0.4 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 21.0 ppb (20) 0.16 ppb (3) 6.9 μg/m3 (7) 3.6 μg/m3 (16) 20.0
 
Feb. 20, 2021, 5 a.m. N/A 0.5 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 24.0 ppb (23) 0.14 ppb (2) 8.1 μg/m3 (8) 3.3 μg/m3 (14) 23.0
 
Feb. 20, 2021, 4 a.m. N/A 0.4 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (26) 0.15 ppb (2) 10.2 μg/m3 (10) 4.0 μg/m3 (17) 26.0
 
Feb. 20, 2021, 3 a.m. N/A 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) 0.12 ppb (2) 5.7 μg/m3 (6) 3.6 μg/m3 (16) 32.0
 
Feb. 20, 2021, 2 a.m. N/A 0.3 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 35.0 ppb (33) 0.11 ppb (2) 6.3 μg/m3 (6) 3.3 μg/m3 (14) 33.0
 
Feb. 20, 2021, 1 a.m. N/A 0.4 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 30.0 ppb (28) 0.13 ppb (2) 8.8 μg/m3 (9) 7.7 μg/m3 (33) 33.0
 
Feb. 20, 2021, midnight N/A 0.3 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 31.0 ppb (29) 0.13 ppb (2) 8.4 μg/m3 (8) 6.3 μg/m3 (27) 29.0
 
Feb. 19, 2021, 11 p.m. N/A 0.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 34.0 ppb (32) 0.12 ppb (2) 4.2 μg/m3 (4) 3.1 μg/m3 (13) 32.0
 
Feb. 19, 2021, 10 p.m. N/A 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 36.0 ppb (34) 0.11 ppb (2) 6.2 μg/m3 (6) 3.1 μg/m3 (13) 34.0
 
Feb. 19, 2021, 9 p.m. N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 38.0 ppb (36) 0.11 ppb (2) 4.3 μg/m3 (4) 3.9 μg/m3 (17) 36.0
 
Feb. 19, 2021, 8 p.m. N/A 0.8 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 37.0 ppb (35) 0.11 ppb (2) 5.9 μg/m3 (6) 4.6 μg/m3 (20) 35.0
 
Feb. 19, 2021, 7 p.m. N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 37.0 ppb (35) 0.1 ppb (2) 8.7 μg/m3 (9) 4.8 μg/m3 (20) 35.0
 
Feb. 19, 2021, 6 p.m. N/A 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 36.0 ppb (34) 0.1 ppb (2) 9.2 μg/m3 (9) 4.1 μg/m3 (18) 34.0
 
Feb. 19, 2021, 5 p.m. N/A 1.1 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 35.0 ppb (33) 0.11 ppb (2) 7.3 μg/m3 (7) 3.2 μg/m3 (14) 33.0
 
Feb. 19, 2021, 4 p.m. N/A 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 32.0 ppb (30) 0.11 ppb (2) 7.0 μg/m3 (7) 2.8 μg/m3 (12) 30.0
 
Feb. 19, 2021, 3 p.m. N/A 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 31.0 ppb (29) 0.11 ppb (2) 5.9 μg/m3 (6) 2.0 μg/m3 (9) 29.0
 
Feb. 19, 2021, 2 p.m. N/A 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 31.0 ppb (29) 0.11 ppb (2) 6.5 μg/m3 (7) 2.3 μg/m3 (10) 29.0
 
Feb. 19, 2021, 1 p.m. N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) 0.11 ppb (2) 8.1 μg/m3 (8) 4.2 μg/m3 (18) 30.0
 
Feb. 19, 2021, noon N/A 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) 0.11 ppb (2) 7.6 μg/m3 (8) 2.5 μg/m3 (11) 32.0
 
Feb. 19, 2021, 11 a.m. N/A 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 27.0 ppb (25) 0.11 ppb (2) 5.5 μg/m3 (6) 1.9 μg/m3 (8) 25.0
 
Feb. 19, 2021, 10 a.m. N/A 0.5 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (21) 0.12 ppb (2) 6.4 μg/m3 (6) 5.1 μg/m3 (22) 22.0
 
Feb. 19, 2021, 9 a.m. N/A 0.4 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 16.0 ppb (15) 0.14 ppb (2) 6.9 μg/m3 (7) 7.0 μg/m3 (30) 30.0
 
Feb. 19, 2021, 8 a.m. N/A 0.5 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 17.0 ppb (16) 0.14 ppb (2) 6.8 μg/m3 (7) 6.1 μg/m3 (26) 26.0
 
Feb. 19, 2021, 7 a.m. N/A 0.4 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 20.0 ppb (19) 0.14 ppb (2) 6.0 μg/m3 (6) 3.5 μg/m3 (15) 19.0
 
Feb. 19, 2021, 6 a.m. N/A 0.6 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 18.0 ppb (17) 0.14 ppb (2) 6.9 μg/m3 (7) 4.8 μg/m3 (20) 20.0
 
Feb. 19, 2021, 5 a.m. N/A 1.1 ppb (2) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 16.0 ppb (15) 0.17 ppb (3) 5.9 μg/m3 (6) 4.1 μg/m3 (18) 18.0
 
Feb. 19, 2021, 4 a.m. N/A 0.3 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 25.0 ppb (24) 0.14 ppb (2) 5.0 μg/m3 (5) 2.1 μg/m3 (9) 24.0
 
Feb. 19, 2021, 3 a.m. N/A 0.6 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 24.0 ppb (23) 0.16 ppb (3) 6.6 μg/m3 (7) 2.4 μg/m3 (10) 23.0
 
Feb. 19, 2021, 2 a.m. N/A 0.4 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 31.0 ppb (29) 0.13 ppb (2) 4.3 μg/m3 (4) 0.9 μg/m3 (4) 29.0
 
Feb. 19, 2021, 1 a.m. N/A 0.8 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 31.0 ppb (29) 0.13 ppb (2) 3.8 μg/m3 (4) 0.8 μg/m3 (4) 29.0
 
Feb. 19, 2021, midnight N/A 0.6 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 29.0 ppb (27) 0.14 ppb (2) 3.9 μg/m3 (4) 0.9 μg/m3 (4) 27.0
 
Feb. 18, 2021, 11 p.m. N/A 1.1 ppb (2) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 30.0 ppb (28) 0.13 ppb (2) 2.5 μg/m3 (3) 0.9 μg/m3 (4) 28.0
 
Feb. 18, 2021, 10 p.m. N/A 1.2 ppb (2) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 30.0 ppb (28) 0.12 ppb (2) 2.9 μg/m3 (3) 0.9 μg/m3 (4) 28.0
 
Feb. 18, 2021, 9 p.m. N/A 1.3 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 29.0 ppb (27) 0.11 ppb (2) 4.0 μg/m3 (4) 0.8 μg/m3 (4) 27.0
 
Feb. 18, 2021, 8 p.m. N/A 1.9 ppb (2) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 26.0 ppb (25) 0.13 ppb (2) 10.4 μg/m3 (10) 1.0 μg/m3 (5) 25.0
 
Feb. 18, 2021, 7 p.m. N/A 1.6 ppb (2) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 23.0 ppb (22) 0.14 ppb (2) 13.2 μg/m3 (13) 1.5 μg/m3 (7) 22.0
 
Feb. 18, 2021, 6 p.m. N/A 1.4 ppb (2) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 23.0 ppb (22) 0.14 ppb (2) 7.6 μg/m3 (8) 1.1 μg/m3 (5) 22.0