ID: 7881

AQSQID: 840040059999

Site Name: Grand Canyon Ozone Bench

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

Updated: Jan. 21, 2022, 10:33 a.m.

Location: Grand Cyn (Mather Point Amphitheater), AZ

Reporting: True, Located: True

Current AQI: 39.0

Grand Cyn (Mather Point Amphitheater) AZ, US: 36.060444, -112.107028

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 21, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A -1.3 μg/m3 (0) 39.0
 
Jan. 21, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A -1.3 μg/m3 (0) 39.0
 
Jan. 21, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A -1.2 μg/m3 (0) 40.0
 
Jan. 21, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A -1.1 μg/m3 (0) 40.0
 
Jan. 21, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A -0.7 μg/m3 (0) 38.0
 
Jan. 21, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A -0.8 μg/m3 (0) 37.0
 
Jan. 21, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A -0.6 μg/m3 (0) 37.0
 
Jan. 21, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A -0.6 μg/m3 (0) 37.0
 
Jan. 21, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A -0.2 μg/m3 (0) 36.0
 
Jan. 21, 2022, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 0.0 μg/m3 (0) 40.0
 
Jan. 20, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 0.2 μg/m3 (1) 39.0
 
Jan. 20, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 0.0 μg/m3 (0) 38.0
 
Jan. 20, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A -0.4 μg/m3 (0) 38.0
 
Jan. 20, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A -0.7 μg/m3 (0) 38.0
 
Jan. 20, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A -0.8 μg/m3 (0) 38.0
 
Jan. 20, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A -0.9 μg/m3 (0) 39.0
 
Jan. 20, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A -0.9 μg/m3 (0) 39.0
 
Jan. 20, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A -1.0 μg/m3 (0) 40.0
 
Jan. 20, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A -1.3 μg/m3 (0) 39.0
 
Jan. 20, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A -1.2 μg/m3 (0) 38.0
 
Jan. 20, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A -1.3 μg/m3 (0) 37.0
 
Jan. 20, 2022, noon N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A -1.3 μg/m3 (0) 38.0
 
Jan. 20, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A -1.2 μg/m3 (0) 32.0
 
Jan. 20, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A -1.2 μg/m3 (0) 33.0
 
Jan. 20, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A -1.2 μg/m3 (0) 30.0
 
Jan. 20, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A -1.2 μg/m3 (0) 32.0
 
Jan. 20, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A -1.1 μg/m3 (0) 35.0
 
Jan. 20, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A -1.1 μg/m3 (0) 37.0
 
Jan. 20, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A -1.0 μg/m3 (0) 35.0
 
Jan. 20, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A -1.1 μg/m3 (0) 36.0
 
Jan. 20, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A -1.0 μg/m3 (0) 35.0
 
Jan. 20, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A -0.9 μg/m3 (0) 36.0
 
Jan. 20, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A -0.4 μg/m3 (0) 35.0
 
Jan. 20, 2022, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 0.3 μg/m3 (2) 35.0
 
Jan. 19, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 0.5 μg/m3 (3) 37.0
 
Jan. 19, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 1.2 μg/m3 (5) 35.0
 
Jan. 19, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 1.0 μg/m3 (5) 33.0
 
Jan. 19, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 0.4 μg/m3 (2) 33.0
 
Jan. 19, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A -0.3 μg/m3 (0) 31.0
 
Jan. 19, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A -0.8 μg/m3 (0) 33.0
 
Jan. 19, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A -1.2 μg/m3 (0) 32.0
 
Jan. 19, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A -1.1 μg/m3 (0) 34.0
 
Jan. 19, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A -1.4 μg/m3 (0) 35.0
 
Jan. 19, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A -1.4 μg/m3 (0) 35.0
 
Jan. 19, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A -1.4 μg/m3 (0) 36.0
 
Jan. 19, 2022, noon N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A -1.3 μg/m3 (0) 35.0
 
Jan. 19, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A -1.5 μg/m3 (0) 35.0
 
Jan. 19, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A -1.5 μg/m3 (0) 35.0
 
Jan. 19, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A -1.8 μg/m3 (0) 31.0
 
Jan. 19, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A -2.0 μg/m3 (0) 32.0
 
Jan. 19, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A -1.5 μg/m3 (0) 36.0
 
Jan. 19, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A -1.6 μg/m3 (0) 37.0
 
Jan. 19, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A -1.7 μg/m3 (0) 37.0
 
Jan. 19, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A -1.7 μg/m3 (0) 36.0
 
Jan. 19, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A -1.2 μg/m3 (0) 35.0
 
Jan. 19, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A -1.0 μg/m3 (0) 33.0
 
Jan. 19, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A -1.1 μg/m3 (0) 34.0
 
Jan. 19, 2022, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A -0.8 μg/m3 (0) 32.0
 
Jan. 18, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A -1.3 μg/m3 (0) 33.0
 
Jan. 18, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A -1.6 μg/m3 (0) 34.0
 
Jan. 18, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A -1.6 μg/m3 (0) 33.0
 
Jan. 18, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A -0.8 μg/m3 (0) 35.0
 
Jan. 18, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A -0.1 μg/m3 (0) 37.0
 
Jan. 18, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A -0.4 μg/m3 (0) 38.0
 
Jan. 18, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Jan. 18, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A -0.8 μg/m3 (0) 35.0
 
Jan. 18, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A -0.4 μg/m3 (0) 37.0
 
Jan. 18, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A -0.7 μg/m3 (0) 38.0
 
Jan. 18, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A -0.8 μg/m3 (0) 39.0
 
Jan. 18, 2022, noon N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A -0.9 μg/m3 (0) 40.0
 
Jan. 18, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A -0.9 μg/m3 (0) 40.0
 
Jan. 18, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A -0.9 μg/m3 (0) 40.0
 
Jan. 18, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A -0.8 μg/m3 (0) 40.0
 
Jan. 18, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A -0.9 μg/m3 (0) 40.0
 
Jan. 18, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A -0.8 μg/m3 (0) 38.0
 
Jan. 18, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A -0.7 μg/m3 (0) 38.0
 
Jan. 18, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 0.8 μg/m3 (4) 41.0
 
Jan. 18, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 1.1 μg/m3 (5) 40.0
 
Jan. 18, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 1.0 μg/m3 (5) 39.0
 
Jan. 18, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 2.3 μg/m3 (10) 39.0
 
Jan. 18, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 3.9 μg/m3 (17) 39.0
 
Jan. 18, 2022, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 1.2 μg/m3 (5) 40.0
 
Jan. 17, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 1.1 μg/m3 (5) 43.0
 
Jan. 17, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 0.8 μg/m3 (4) 44.0
 
Jan. 17, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 0.6 μg/m3 (3) 43.0
 
Jan. 17, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 0.7 μg/m3 (3) 42.0
 
Jan. 17, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 0.4 μg/m3 (2) 42.0
 
Jan. 17, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 0.1 μg/m3 (1) 41.0
 
Jan. 17, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A -0.2 μg/m3 (0) 41.0
 
Jan. 17, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A -0.3 μg/m3 (0) 40.0
 
Jan. 17, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A -0.7 μg/m3 (0) 44.0
 
Jan. 17, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A -0.7 μg/m3 (0) 43.0
 
Jan. 17, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A -0.7 μg/m3 (0) 44.0
 
Jan. 17, 2022, noon N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A -0.7 μg/m3 (0) 44.0
 
Jan. 17, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A -0.7 μg/m3 (0) 44.0
 
Jan. 17, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A -0.7 μg/m3 (0) 44.0
 
Jan. 17, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A -0.6 μg/m3 (0) 43.0
 
Jan. 17, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A -0.6 μg/m3 (0) 43.0
 
Jan. 17, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A -0.6 μg/m3 (0) 43.0
 
Jan. 17, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A -0.4 μg/m3 (0) 43.0
 
Jan. 17, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A -0.4 μg/m3 (0) 43.0
 
Jan. 17, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A -0.3 μg/m3 (0) 43.0
 
Jan. 17, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A -0.3 μg/m3 (0) 43.0
 
Jan. 17, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 0.0 μg/m3 (0) 41.0
 
Jan. 17, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 0.4 μg/m3 (2) 39.0
 
Jan. 17, 2022, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 0.8 μg/m3 (4) 38.0
 
Jan. 16, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 1.0 μg/m3 (5) 39.0
 
Jan. 16, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 0.7 μg/m3 (3) 40.0
 
Jan. 16, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 0.6 μg/m3 (3) 40.0
 
Jan. 16, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 0.2 μg/m3 (1) 42.0
 
Jan. 16, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A -0.1 μg/m3 (0) 43.0
 
Jan. 16, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A -0.2 μg/m3 (0) 43.0
 
Jan. 16, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A -0.4 μg/m3 (0) 43.0
 
Jan. 16, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A -0.6 μg/m3 (0) 44.0
 
Jan. 16, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A -0.8 μg/m3 (0) 45.0
 
Jan. 16, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A -0.8 μg/m3 (0) 45.0
 
Jan. 16, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A -0.8 μg/m3 (0) 45.0
 
Jan. 16, 2022, noon N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A -0.7 μg/m3 (0) 45.0
 
Jan. 16, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A -0.6 μg/m3 (0) 45.0
 
Jan. 16, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A -0.6 μg/m3 (0) 45.0
 
Jan. 16, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A -0.6 μg/m3 (0) 46.0
 
Jan. 16, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A -0.6 μg/m3 (0) 45.0
 
Jan. 16, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A -0.4 μg/m3 (0) 45.0
 
Jan. 16, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A -0.4 μg/m3 (0) 46.0
 
Jan. 16, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A -0.3 μg/m3 (0) 47.0
 
Jan. 16, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A -0.3 μg/m3 (0) 46.0
 
Jan. 16, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A -0.3 μg/m3 (0) 46.0
 
Jan. 16, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A -0.3 μg/m3 (0) 46.0
 
Jan. 16, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A -0.1 μg/m3 (0) 45.0
 
Jan. 16, 2022, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 0.2 μg/m3 (1) 43.0
 
Jan. 15, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 0.4 μg/m3 (2) 43.0
 
Jan. 15, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 0.5 μg/m3 (3) 43.0
 
Jan. 15, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 0.3 μg/m3 (2) 42.0
 
Jan. 15, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 0.0 μg/m3 (0) 43.0
 
Jan. 15, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A -0.2 μg/m3 (0) 44.0
 
Jan. 15, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A -0.3 μg/m3 (0) 43.0
 
Jan. 15, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A -0.5 μg/m3 (0) 42.0
 
Jan. 15, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A -0.7 μg/m3 (0) 42.0
 
Jan. 15, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A -0.8 μg/m3 (0) 42.0
 
Jan. 15, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A -0.8 μg/m3 (0) 44.0
 
Jan. 15, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A -0.8 μg/m3 (0) 44.0
 
Jan. 15, 2022, noon N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A -0.8 μg/m3 (0) 44.0
 
Jan. 15, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A -0.7 μg/m3 (0) 43.0
 
Jan. 15, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A -0.7 μg/m3 (0) 44.0
 
Jan. 15, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A -0.6 μg/m3 (0) 44.0
 
Jan. 15, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A -0.6 μg/m3 (0) 44.0
 
Jan. 15, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A -0.6 μg/m3 (0) 43.0
 
Jan. 15, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A -0.5 μg/m3 (0) 44.0
 
Jan. 15, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A -0.5 μg/m3 (0) 44.0
 
Jan. 15, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A -0.5 μg/m3 (0) 44.0
 
Jan. 15, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A -0.4 μg/m3 (0) 43.0
 
Jan. 15, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A -0.2 μg/m3 (0) 42.0
 
Jan. 15, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 0.1 μg/m3 (1) 44.0
 
Jan. 15, 2022, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 0.7 μg/m3 (3) 43.0
 
Jan. 14, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 1.1 μg/m3 (5) 42.0
 
Jan. 14, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 0.9 μg/m3 (4) 40.0
 
Jan. 14, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 0.5 μg/m3 (3) 40.0
 
Jan. 14, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 0.2 μg/m3 (1) 40.0
 
Jan. 14, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 0.2 μg/m3 (1) 38.0
 
Jan. 14, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 0.1 μg/m3 (1) 39.0
 
Jan. 14, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A -0.3 μg/m3 (0) 40.0
 
Jan. 14, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A -0.5 μg/m3 (0) 40.0
 
Jan. 14, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A -0.6 μg/m3 (0) 39.0
 
Jan. 14, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A -0.6 μg/m3 (0) 40.0
 
Jan. 14, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A -0.5 μg/m3 (0) 40.0
 
Jan. 14, 2022, noon N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A -0.6 μg/m3 (0) 42.0
 
Jan. 14, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A -0.4 μg/m3 (0) 40.0
 
Jan. 14, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A -0.5 μg/m3 (0) 37.0