ID: 2076

AQSQID: 000091701

Site Name: Steeper

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

Updated: July 2, 2022, 3:46 a.m.

Location: Alberta (Yellowhead Co), CC

Reporting: False, Located: True

Current AQI: None

Alberta (Yellowhead Co) CC, CA: 53.1325, -117.09111

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 25, 2022, 1 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 51.0 ppb (48) N/A N/A 0.4 μg/m3 (2) 48.0
 
Jan. 25, 2022, noon N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 51.0 ppb (48) N/A N/A 0.5 μg/m3 (3) 48.0
 
Jan. 25, 2022, 11 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 0.4 μg/m3 (2) 47.0
 
Jan. 25, 2022, 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
 
Jan. 25, 2022, 9 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 0.4 μg/m3 (2) 43.0
 
Jan. 25, 2022, 8 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 0.4 μg/m3 (2) 40.0
 
Jan. 25, 2022, 7 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 0.3 μg/m3 (2) 39.0
 
Jan. 25, 2022, 6 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 0.3 μg/m3 (2) 36.0
 
Jan. 25, 2022, 5 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 0.3 μg/m3 (2) 34.0
 
Jan. 25, 2022, 4 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 0.3 μg/m3 (2) 34.0
 
Jan. 25, 2022, 3 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 0.3 μg/m3 (2) 35.0
 
Jan. 25, 2022, 2 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 0.3 μg/m3 (2) 38.0
 
Jan. 25, 2022, 1 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 0.3 μg/m3 (2) 38.0
 
Jan. 25, 2022, midnight N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 0.3 μg/m3 (2) 38.0
 
Jan. 24, 2022, 11 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 0.4 μg/m3 (2) 39.0
 
Jan. 24, 2022, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 0.3 μg/m3 (2) 39.0
 
Jan. 24, 2022, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 0.3 μg/m3 (2) 40.0
 
Jan. 24, 2022, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 0.3 μg/m3 (2) 40.0
 
Jan. 24, 2022, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 0.3 μg/m3 (2) 40.0
 
Jan. 24, 2022, 6 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 0.3 μg/m3 (2) 39.0
 
Jan. 24, 2022, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 0.4 μg/m3 (2) 39.0
 
Jan. 24, 2022, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 0.6 μg/m3 (3) 38.0
 
Jan. 24, 2022, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 0.5 μg/m3 (3) 36.0
 
Jan. 24, 2022, 2 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 0.3 μg/m3 (2) 38.0
 
Jan. 24, 2022, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 0.2 μg/m3 (1) 38.0
 
Jan. 24, 2022, noon N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 0.2 μg/m3 (1) 40.0
 
Jan. 24, 2022, 11 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 45.0 ppb (42) N/A N/A 0.4 μg/m3 (2) 42.0
 
Jan. 24, 2022, 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
 
Jan. 24, 2022, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (42) N/A N/A 0.5 μg/m3 (3) 42.0
 
Jan. 24, 2022, 8 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A 0.8 μg/m3 (4) 44.0
 
Jan. 24, 2022, 7 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A 1.1 μg/m3 (5) 44.0
 
Jan. 24, 2022, 6 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A 1.4 μg/m3 (6) 44.0
 
Jan. 24, 2022, 5 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A 1.0 μg/m3 (5) 44.0
 
Jan. 24, 2022, 4 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A 0.5 μg/m3 (3) 44.0
 
Jan. 24, 2022, 3 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 48.0 ppb (45) N/A N/A 0.2 μg/m3 (1) 45.0
 
Jan. 24, 2022, 2 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 48.0 ppb (45) N/A N/A 0.2 μg/m3 (1) 45.0
 
Jan. 24, 2022, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 0.3 μg/m3 (2) 43.0
 
Jan. 24, 2022, midnight N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A 0.2 μg/m3 (1) 44.0
 
Jan. 23, 2022, 11 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 0.2 μg/m3 (1) 47.0
 
Jan. 23, 2022, 10 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 0.2 μg/m3 (1) 47.0
 
Jan. 23, 2022, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 0.2 μg/m3 (1) 47.0
 
Jan. 23, 2022, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 0.3 μg/m3 (2) 47.0
 
Jan. 23, 2022, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 2.5 μg/m3 (11) 47.0
 
Jan. 23, 2022, 6 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 0.8 μg/m3 (4) 47.0
 
Jan. 23, 2022, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 3.8 μg/m3 (16) 47.0
 
Jan. 23, 2022, 4 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 51.0 ppb (48) N/A N/A 1.9 μg/m3 (8) 48.0
 
Jan. 23, 2022, 3 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 51.0 ppb (48) N/A N/A 2.0 μg/m3 (9) 48.0
 
Jan. 23, 2022, 2 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 52.0 ppb (49) N/A N/A 3.9 μg/m3 (17) 49.0
 
Jan. 23, 2022, 1 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 53.0 ppb (50) N/A N/A 5.5 μg/m3 (23) 50.0
 
Jan. 23, 2022, noon N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 53.0 ppb (50) N/A N/A 3.2 μg/m3 (14) 50.0
 
Jan. 23, 2022, 11 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 53.0 ppb (50) N/A N/A 3.0 μg/m3 (13) 50.0
 
Jan. 23, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.1 μg/m3 (13) 13.0
 
Jan. 23, 2022, 9 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 52.0 ppb (49) N/A N/A 4.3 μg/m3 (18) 49.0
 
Jan. 23, 2022, 8 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 52.0 ppb (49) N/A N/A 3.1 μg/m3 (13) 49.0
 
Jan. 23, 2022, 7 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 52.0 ppb (49) N/A N/A 1.8 μg/m3 (8) 49.0
 
Jan. 23, 2022, 6 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 52.0 ppb (49) N/A N/A 2.7 μg/m3 (12) 49.0
 
Jan. 23, 2022, 5 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 52.0 ppb (49) N/A N/A 1.2 μg/m3 (5) 49.0
 
Jan. 23, 2022, 4 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 51.0 ppb (48) N/A N/A 2.6 μg/m3 (11) 48.0
 
Jan. 23, 2022, 3 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 51.0 ppb (48) N/A N/A 2.3 μg/m3 (10) 48.0
 
Jan. 23, 2022, 2 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 52.0 ppb (49) N/A N/A 0.7 μg/m3 (3) 49.0
 
Jan. 23, 2022, 1 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 52.0 ppb (49) N/A N/A 0.9 μg/m3 (4) 49.0
 
Jan. 23, 2022, midnight N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 52.0 ppb (49) N/A N/A 0.4 μg/m3 (2) 49.0
 
Jan. 22, 2022, 11 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 51.0 ppb (48) N/A N/A 0.4 μg/m3 (2) 48.0
 
Jan. 22, 2022, 10 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 0.4 μg/m3 (2) 47.0
 
Jan. 22, 2022, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 0.4 μg/m3 (2) 47.0
 
Jan. 22, 2022, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 0.3 μg/m3 (2) 47.0
 
Jan. 22, 2022, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 0.3 μg/m3 (2) 47.0
 
Jan. 22, 2022, 6 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 0.3 μg/m3 (2) 47.0
 
Jan. 22, 2022, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 0.4 μg/m3 (2) 47.0
 
Jan. 22, 2022, 4 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 0.4 μg/m3 (2) 47.0
 
Jan. 22, 2022, 3 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 49.0 ppb (46) N/A N/A 0.3 μg/m3 (2) 46.0
 
Jan. 22, 2022, 2 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 48.0 ppb (45) N/A N/A 0.3 μg/m3 (2) 45.0
 
Jan. 22, 2022, 1 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 48.0 ppb (45) N/A N/A 0.2 μg/m3 (1) 45.0
 
Jan. 22, 2022, noon N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A 0.2 μg/m3 (1) 44.0
 
Jan. 22, 2022, 11 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A 0.3 μg/m3 (2) 44.0
 
Jan. 22, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.3 μg/m3 (2) 2.0
 
Jan. 22, 2022, 9 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 0.2 μg/m3 (1) 43.0
 
Jan. 22, 2022, 8 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 0.2 μg/m3 (1) 43.0
 
Jan. 22, 2022, 7 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 0.3 μg/m3 (2) 43.0
 
Jan. 22, 2022, 6 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A 0.5 μg/m3 (3) 44.0
 
Jan. 22, 2022, 5 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A 0.5 μg/m3 (3) 44.0
 
Jan. 22, 2022, 4 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A 0.5 μg/m3 (3) 44.0
 
Jan. 22, 2022, 3 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A 0.5 μg/m3 (3) 44.0
 
Jan. 22, 2022, 2 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A 0.6 μg/m3 (3) 44.0
 
Jan. 22, 2022, 1 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 48.0 ppb (45) N/A N/A 0.5 μg/m3 (3) 45.0
 
Jan. 22, 2022, midnight N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 48.0 ppb (45) N/A N/A 0.5 μg/m3 (3) 45.0
 
Jan. 21, 2022, 11 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 0.4 μg/m3 (2) 43.0
 
Jan. 21, 2022, 10 p.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
 
Jan. 21, 2022, 9 p.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
 
Jan. 21, 2022, 8 p.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
 
Jan. 21, 2022, 7 p.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
 
Jan. 21, 2022, 6 p.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
 
Jan. 21, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.6 μg/m3 (3) 3.0
 
Jan. 21, 2022, 4 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 0.5 μg/m3 (3) 39.0
 
Jan. 21, 2022, 3 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 0.8 μg/m3 (4) 38.0
 
Jan. 21, 2022, 2 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 0.9 μg/m3 (4) 38.0
 
Jan. 21, 2022, 1 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 0.6 μg/m3 (3) 37.0
 
Jan. 21, 2022, noon N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 0.8 μg/m3 (4) 37.0
 
Jan. 21, 2022, 11 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 0.6 μg/m3 (3) 36.0
 
Jan. 21, 2022, 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
 
Jan. 21, 2022, 9 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 0.4 μg/m3 (2) 36.0
 
Jan. 21, 2022, 8 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 0.4 μg/m3 (2) 37.0
 
Jan. 21, 2022, 7 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 0.3 μg/m3 (2) 37.0
 
Jan. 21, 2022, 6 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 0.1 μg/m3 (1) 38.0
 
Jan. 21, 2022, 5 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 0.1 μg/m3 (1) 38.0
 
Jan. 21, 2022, 4 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 0.1 μg/m3 (1) 38.0
 
Jan. 21, 2022, 3 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 0.1 μg/m3 (1) 39.0
 
Jan. 21, 2022, 2 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 0.1 μg/m3 (1) 39.0
 
Jan. 21, 2022, 1 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 0.4 μg/m3 (2) 39.0
 
Jan. 21, 2022, midnight N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 2.4 μg/m3 (10) 39.0
 
Jan. 20, 2022, 11 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 0.5 μg/m3 (3) 38.0
 
Jan. 20, 2022, 10 p.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 0.1 μg/m3 (1) 38.0
 
Jan. 20, 2022, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 0.1 μg/m3 (1) 37.0
 
Jan. 20, 2022, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 0.1 μg/m3 (1) 35.0
 
Jan. 20, 2022, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 0.1 μg/m3 (1) 33.0
 
Jan. 20, 2022, 6 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 0.1 μg/m3 (1) 34.0
 
Jan. 20, 2022, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 0.1 μg/m3 (1) 36.0
 
Jan. 20, 2022, 4 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 0.1 μg/m3 (1) 35.0
 
Jan. 20, 2022, 3 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 0.1 μg/m3 (1) 36.0
 
Jan. 20, 2022, 2 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 0.1 μg/m3 (1) 38.0
 
Jan. 20, 2022, 1 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 0.3 μg/m3 (2) 38.0
 
Jan. 20, 2022, noon N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 0.3 μg/m3 (2) 38.0
 
Jan. 20, 2022, 11 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 0.2 μg/m3 (1) 38.0
 
Jan. 20, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.2 μg/m3 (1) 1.0
 
Jan. 20, 2022, 9 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 0.2 μg/m3 (1) 38.0
 
Jan. 20, 2022, 8 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 0.3 μg/m3 (2) 40.0
 
Jan. 20, 2022, 7 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 45.0 ppb (42) N/A N/A 0.4 μg/m3 (2) 42.0
 
Jan. 20, 2022, 6 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A 0.2 μg/m3 (1) 44.0
 
Jan. 20, 2022, 5 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 49.0 ppb (46) N/A N/A 0.2 μg/m3 (1) 46.0
 
Jan. 20, 2022, 4 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 0.3 μg/m3 (2) 47.0
 
Jan. 20, 2022, 3 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 51.0 ppb (48) N/A N/A 0.3 μg/m3 (2) 48.0
 
Jan. 20, 2022, 2 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 51.0 ppb (48) N/A N/A 0.2 μg/m3 (1) 48.0
 
Jan. 20, 2022, 1 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 0.2 μg/m3 (1) 47.0
 
Jan. 20, 2022, midnight N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 49.0 ppb (46) N/A N/A 0.2 μg/m3 (1) 46.0
 
Jan. 19, 2022, 11 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 0.2 μg/m3 (1) 43.0
 
Jan. 19, 2022, 10 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 0.1 μg/m3 (1) 43.0
 
Jan. 19, 2022, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 45.0 ppb (42) N/A N/A 0.1 μg/m3 (1) 42.0
 
Jan. 19, 2022, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 0.1 μg/m3 (1) 41.0
 
Jan. 19, 2022, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 45.0 ppb (42) N/A N/A 0.1 μg/m3 (1) 42.0
 
Jan. 19, 2022, 6 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 45.0 ppb (42) N/A N/A 0.1 μg/m3 (1) 42.0
 
Jan. 19, 2022, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 0.0 μg/m3 (0) 43.0
 
Jan. 19, 2022, 4 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 45.0 ppb (42) N/A N/A 0.1 μg/m3 (1) 42.0
 
Jan. 19, 2022, 3 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 45.0 ppb (42) N/A N/A 0.2 μg/m3 (1) 42.0
 
Jan. 19, 2022, 2 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 0.3 μg/m3 (2) 40.0
 
Jan. 19, 2022, 1 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 0.5 μg/m3 (3) 39.0
 
Jan. 19, 2022, noon N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 0.6 μg/m3 (3) 38.0
 
Jan. 19, 2022, 11 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 0.9 μg/m3 (4) 38.0
 
Jan. 19, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.1 μg/m3 (5) 5.0
 
Jan. 19, 2022, 9 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 1.9 μg/m3 (8) 35.0
 
Jan. 19, 2022, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 3.5 μg/m3 (15) 32.0
 
Jan. 19, 2022, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 5.1 μg/m3 (22) 29.0
 
Jan. 19, 2022, 6 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 5.5 μg/m3 (23) 27.0
 
Jan. 19, 2022, 5 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 4.8 μg/m3 (20) 25.0
 
Jan. 19, 2022, 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 4.5 μg/m3 (19) 25.0
 
Jan. 19, 2022, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 5.2 μg/m3 (22) 24.0
 
Jan. 19, 2022, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 7.8 μg/m3 (33) 33.0
 
Jan. 19, 2022, 1 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 12.5 μg/m3 (52) 52.0
 
Jan. 19, 2022, midnight N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 14.3 μg/m3 (56) 56.0
 
Jan. 18, 2022, 11 p.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 14.0 μg/m3 (55) 55.0
 
Jan. 18, 2022, 10 p.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 14.2 μg/m3 (56) 56.0
 
Jan. 18, 2022, 9 p.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 11.9 μg/m3 (50) 50.0
 
Jan. 18, 2022, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 7.2 μg/m3 (31) 31.0
 
Jan. 18, 2022, 7 p.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 1.7 μg/m3 (8) 25.0
 
Jan. 18, 2022, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 1.6 μg/m3 (7) 25.0
 
Jan. 18, 2022, 5 p.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 2.0 μg/m3 (9) 23.0
 
Jan. 18, 2022, 4 p.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 2.6 μg/m3 (11) 25.0
 
Jan. 18, 2022, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 2.4 μg/m3 (10) 25.0
 
Jan. 18, 2022, 2 p.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 2.0 μg/m3 (9) 22.0