ID: 2222

AQSQID: 560250100

Site Name: Casper Gaseous

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

Updated: March 1, 2021, 3:32 p.m.

Location: Casper (Paradise Valley), WY

Reporting: True, Located: True

Current AQI: 38.0

Casper (Paradise Valley) WY, US: 42.82231, -106.36501

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 1, 2021, 1 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
 
March 1, 2021, noon N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A -2.0 μg/m3 (0) 38.0
 
March 1, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A -3.0 μg/m3 (0) 39.0
 
March 1, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 0.0 μg/m3 (0) 39.0
 
March 1, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 0.0 μg/m3 (0) 39.0
 
March 1, 2021, 8 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 (0) 39.0
 
March 1, 2021, 7 a.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
 
March 1, 2021, 6 a.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
 
March 1, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
March 1, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 4.0 μg/m3 (17) 40.0
 
March 1, 2021, 3 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
 
March 1, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 1.0 μg/m3 (5) 41.0
 
March 1, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 1.0 μg/m3 (5) 41.0
 
March 1, 2021, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A -1.0 μg/m3 (0) 42.0
 
Feb. 28, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 1.0 μg/m3 (5) 41.0
 
Feb. 28, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 2.0 μg/m3 (9) 42.0
 
Feb. 28, 2021, 9 p.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
 
Feb. 28, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A -1.0 μg/m3 (0) 41.0
 
Feb. 28, 2021, 7 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
 
Feb. 28, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 0.0 μg/m3 (0) 39.0
 
Feb. 28, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 0.0 μg/m3 (0) 39.0
 
Feb. 28, 2021, 4 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
 
Feb. 28, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 2.0 μg/m3 (9) 39.0
 
Feb. 28, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 2.0 μg/m3 (9) 38.0
 
Feb. 28, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 1.0 μg/m3 (5) 37.0
 
Feb. 28, 2021, noon N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 1.0 μg/m3 (5) 32.0
 
Feb. 28, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A -1.0 μg/m3 (0) 34.0
 
Feb. 28, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 0.0 μg/m3 (0) 27.0
 
Feb. 28, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 2.0 μg/m3 (9) 26.0
 
Feb. 28, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 3.0 μg/m3 (13) 28.0
 
Feb. 28, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 3.0 μg/m3 (13) 31.0
 
Feb. 28, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 3.0 μg/m3 (13) 31.0
 
Feb. 28, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 1.0 μg/m3 (5) 31.0
 
Feb. 28, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 0.0 μg/m3 (0) 30.0
 
Feb. 28, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A -2.0 μg/m3 (0) 31.0
 
Feb. 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 1.0 μg/m3 (5) 34.0
 
Feb. 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 1.0 μg/m3 (5) 36.0
 
Feb. 28, 2021, midnight N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 1.0 μg/m3 (5) 36.0
 
Feb. 27, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 3.0 μg/m3 (13) 38.0
 
Feb. 27, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 3.0 μg/m3 (13) 38.0
 
Feb. 27, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 0.0 μg/m3 (0) 38.0
 
Feb. 27, 2021, 8 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
 
Feb. 27, 2021, 7 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
 
Feb. 27, 2021, 6 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 (5) 40.0
 
Feb. 27, 2021, 5 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 (0) 39.0
 
Feb. 27, 2021, 4 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 (0) 39.0
 
Feb. 27, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A -2.0 μg/m3 (0) 39.0
 
Feb. 27, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A -1.0 μg/m3 (0) 38.0
 
Feb. 27, 2021, 1 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 (5) 40.0
 
Feb. 27, 2021, noon N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 1.0 μg/m3 (5) 41.0
 
Feb. 27, 2021, 11 a.m. 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
 
Feb. 27, 2021, 10 a.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
 
Feb. 27, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A -1.0 μg/m3 (0) 41.0
 
Feb. 27, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A -1.0 μg/m3 (0) 41.0
 
Feb. 27, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A -1.0 μg/m3 (0) 41.0
 
Feb. 27, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 0.0 μg/m3 (0) 42.0
 
Feb. 27, 2021, 5 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
 
Feb. 27, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A -1.0 μg/m3 (0) 41.0
 
Feb. 27, 2021, 3 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
 
Feb. 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 3.0 μg/m3 (13) 39.0
 
Feb. 27, 2021, 1 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 (0) 39.0
 
Feb. 27, 2021, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A -2.0 μg/m3 (0) 40.0
 
Feb. 26, 2021, 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
 
Feb. 26, 2021, 10 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 (5) 40.0
 
Feb. 26, 2021, 9 p.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
 
Feb. 26, 2021, 8 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
 
Feb. 26, 2021, 7 p.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
 
Feb. 26, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Feb. 26, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 1.0 μg/m3 (5) 38.0
 
Feb. 26, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 1.0 μg/m3 (5) 38.0
 
Feb. 26, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Feb. 26, 2021, 2 p.m. 1.1 ppb (2) 1.6 ppb (2) N/A -1.0 ppb (0) N/A N/A 40.0 ppb (38) N/A N/A 1.0 μg/m3 (5) 38.0
 
Feb. 26, 2021, 1 p.m. 1.1 ppb (2) 1.6 ppb (2) N/A -1.0 ppb (0) N/A N/A 42.0 ppb (39) N/A N/A -2.0 μg/m3 (0) 39.0
 
Feb. 26, 2021, noon 1.1 ppb (2) 1.6 ppb (2) N/A -1.0 ppb (0) N/A N/A 43.0 ppb (40) N/A N/A 0.0 μg/m3 (0) 40.0
 
Feb. 26, 2021, 11 a.m. 1.2 ppb (2) 1.6 ppb (2) N/A 0.0 ppb (0) N/A N/A 43.0 ppb (40) N/A N/A 3.0 μg/m3 (13) 40.0
 
Feb. 26, 2021, 10 a.m. 1.1 ppb (2) 1.6 ppb (2) N/A -1.0 ppb (0) N/A N/A 42.0 ppb (39) N/A N/A 0.0 μg/m3 (0) 39.0
 
Feb. 26, 2021, 9 a.m. 1.0 ppb (1) 1.6 ppb (2) N/A -1.0 ppb (0) N/A N/A 44.0 ppb (41) N/A N/A -2.0 μg/m3 (0) 41.0
 
Feb. 26, 2021, 8 a.m. 1.1 ppb (2) 1.6 ppb (2) N/A 0.0 ppb (0) N/A N/A 44.0 ppb (41) N/A N/A -1.0 μg/m3 (0) 41.0
 
Feb. 26, 2021, 7 a.m. 1.0 ppb (1) 1.5 ppb (2) N/A 0.0 ppb (0) N/A N/A 45.0 ppb (42) N/A N/A 1.0 μg/m3 (5) 42.0
 
Feb. 26, 2021, 6 a.m. 1.2 ppb (2) 1.7 ppb (2) N/A -1.0 ppb (0) N/A N/A 46.0 ppb (43) N/A N/A 3.0 μg/m3 (13) 43.0
 
Feb. 26, 2021, 5 a.m. 1.1 ppb (2) 1.6 ppb (2) N/A 0.0 ppb (0) N/A N/A 46.0 ppb (43) N/A N/A 6.0 μg/m3 (25) 43.0
 
Feb. 26, 2021, 4 a.m. 1.2 ppb (2) 1.8 ppb (2) N/A -1.0 ppb (0) N/A N/A 46.0 ppb (43) N/A N/A 5.0 μg/m3 (21) 43.0
 
Feb. 26, 2021, 3 a.m. 1.2 ppb (2) 1.6 ppb (2) N/A 0.0 ppb (0) N/A N/A 46.0 ppb (43) N/A N/A -3.0 μg/m3 (0) 43.0
 
Feb. 26, 2021, 2 a.m. 1.1 ppb (2) 1.6 ppb (2) N/A 0.0 ppb (0) N/A N/A 46.0 ppb (43) N/A N/A -1.0 μg/m3 (0) 43.0
 
Feb. 26, 2021, 1 a.m. 1.2 ppb (2) 1.7 ppb (2) N/A -1.0 ppb (0) N/A N/A 46.0 ppb (43) N/A N/A 6.0 μg/m3 (25) 43.0
 
Feb. 26, 2021, midnight 1.1 ppb (2) 1.6 ppb (2) N/A 0.0 ppb (0) N/A N/A 47.0 ppb (44) N/A N/A 8.0 μg/m3 (34) 44.0
 
Feb. 25, 2021, 11 p.m. 1.1 ppb (2) 1.6 ppb (2) N/A -1.0 ppb (0) N/A N/A 48.0 ppb (45) N/A N/A 3.0 μg/m3 (13) 45.0
 
Feb. 25, 2021, 10 p.m. 1.1 ppb (2) 1.6 ppb (2) N/A 0.0 ppb (0) N/A N/A 48.0 ppb (45) N/A N/A 2.0 μg/m3 (9) 45.0
 
Feb. 25, 2021, 9 p.m. 1.0 ppb (1) 1.6 ppb (2) N/A -1.0 ppb (0) N/A N/A 47.0 ppb (44) N/A N/A 2.0 μg/m3 (9) 44.0
 
Feb. 25, 2021, 8 p.m. 0.9 ppb (1) 1.5 ppb (2) N/A -1.0 ppb (0) N/A N/A 45.0 ppb (42) N/A N/A 1.0 μg/m3 (5) 42.0
 
Feb. 25, 2021, 7 p.m. 1.1 ppb (2) 1.6 ppb (2) N/A 0.0 ppb (0) N/A N/A 45.0 ppb (42) N/A N/A 0.0 μg/m3 (0) 42.0
 
Feb. 25, 2021, 6 p.m. 1.1 ppb (2) 1.6 ppb (2) N/A -1.0 ppb (0) N/A N/A 45.0 ppb (42) N/A N/A 0.0 μg/m3 (0) 42.0
 
Feb. 25, 2021, 5 p.m. 1.0 ppb (1) 1.6 ppb (2) N/A -1.0 ppb (0) N/A N/A 45.0 ppb (42) N/A N/A -1.0 μg/m3 (0) 42.0
 
Feb. 25, 2021, 4 p.m. 1.1 ppb (2) 1.6 ppb (2) N/A 0.0 ppb (0) N/A N/A 44.0 ppb (41) N/A N/A 0.0 μg/m3 (0) 41.0
 
Feb. 25, 2021, 3 p.m. 1.2 ppb (2) 1.6 ppb (2) N/A 0.0 ppb (0) N/A N/A 43.0 ppb (40) N/A N/A 1.0 μg/m3 (5) 40.0
 
Feb. 25, 2021, 2 p.m. 1.1 ppb (2) 1.6 ppb (2) N/A -1.0 ppb (0) N/A N/A 43.0 ppb (40) N/A N/A -1.0 μg/m3 (0) 40.0
 
Feb. 25, 2021, 1 p.m. 1.1 ppb (2) 1.7 ppb (2) N/A -1.0 ppb (0) N/A N/A 42.0 ppb (39) N/A N/A -2.0 μg/m3 (0) 39.0
 
Feb. 25, 2021, noon 1.1 ppb (2) 1.6 ppb (2) N/A 0.0 ppb (0) N/A N/A 40.0 ppb (38) N/A N/A -1.0 μg/m3 (0) 38.0
 
Feb. 25, 2021, 11 a.m. 1.1 ppb (2) 1.6 ppb (2) N/A -1.0 ppb (0) N/A N/A 39.0 ppb (37) N/A N/A 1.0 μg/m3 (5) 37.0
 
Feb. 25, 2021, 10 a.m. 1.0 ppb (1) 1.5 ppb (2) N/A -1.0 ppb (0) N/A N/A 17.0 ppb (16) N/A N/A 0.0 μg/m3 (0) 16.0
 
Feb. 25, 2021, 9 a.m. 1.4 ppb (2) 1.6 ppb (2) N/A 0.0 ppb (0) N/A N/A 28.0 ppb (26) N/A N/A -3.0 μg/m3 (0) 26.0
 
Feb. 25, 2021, 8 a.m. 3.4 ppb (4) 1.9 ppb (2) N/A 1.0 ppb (1) N/A N/A 30.0 ppb (28) N/A N/A -2.0 μg/m3 (0) 28.0
 
Feb. 25, 2021, 7 a.m. 10.3 ppb (10) 1.9 ppb (2) N/A 8.0 ppb (8) N/A N/A 25.0 ppb (24) N/A N/A -1.0 μg/m3 (0) 24.0
 
Feb. 25, 2021, 6 a.m. 12.1 ppb (12) 2.5 ppb (3) N/A 10.0 ppb (10) N/A N/A 24.0 ppb (23) N/A N/A -1.0 μg/m3 (0) 23.0
 
Feb. 25, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Feb. 25, 2021, 4 a.m. 16.4 ppb (16) 3.3 ppb (4) N/A 13.0 ppb (13) N/A N/A 24.0 ppb (23) N/A N/A 2.0 μg/m3 (9) 23.0
 
Feb. 25, 2021, 3 a.m. 8.0 ppb (8) 1.6 ppb (2) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (31) N/A N/A 1.0 μg/m3 (5) 31.0
 
Feb. 25, 2021, 2 a.m. 4.7 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) N/A N/A 1.0 μg/m3 (5) 34.0
 
Feb. 25, 2021, 1 a.m. 7.4 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 35.0 ppb (33) N/A N/A 2.0 μg/m3 (9) 33.0
 
Feb. 25, 2021, midnight 2.7 ppb (3) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) N/A N/A -1.0 μg/m3 (0) 38.0
 
Feb. 24, 2021, 11 p.m. 1.9 ppb (2) 1.1 ppb (2) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A N/A -3.0 μg/m3 (0) 41.0
 
Feb. 24, 2021, 10 p.m. 1.5 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (42) N/A N/A 0.0 μg/m3 (0) 42.0
 
Feb. 24, 2021, 9 p.m. 1.5 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (42) N/A N/A 0.0 μg/m3 (0) 42.0
 
Feb. 24, 2021, 8 p.m. 2.7 ppb (3) 1.5 ppb (2) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (43) N/A N/A -1.0 μg/m3 (0) 43.0
 
Feb. 24, 2021, 7 p.m. 3.9 ppb (4) 1.9 ppb (2) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (42) N/A N/A 3.0 μg/m3 (13) 42.0
 
Feb. 24, 2021, 6 p.m. 3.7 ppb (4) 1.9 ppb (2) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (41) N/A N/A 5.0 μg/m3 (21) 41.0
 
Feb. 24, 2021, 5 p.m. 6.3 ppb (6) 3.0 ppb (3) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (39) N/A N/A 3.0 μg/m3 (13) 39.0
 
Feb. 24, 2021, 4 p.m. 11.3 ppb (11) 5.4 ppb (6) N/A 6.0 ppb (6) N/A N/A 35.0 ppb (33) N/A N/A 2.0 μg/m3 (9) 33.0
 
Feb. 24, 2021, 3 p.m. 16.8 ppb (16) 6.9 ppb (7) N/A 10.0 ppb (10) N/A N/A 30.0 ppb (28) N/A N/A 4.0 μg/m3 (17) 28.0
 
Feb. 24, 2021, 2 p.m. 25.4 ppb (24) 7.2 ppb (7) N/A 18.0 ppb (17) N/A N/A 22.0 ppb (21) N/A N/A 7.0 μg/m3 (30) 30.0
 
Feb. 24, 2021, 1 p.m. 16.6 ppb (16) 2.0 ppb (2) N/A 15.0 ppb (15) N/A N/A 27.0 ppb (25) N/A N/A 3.0 μg/m3 (13) 25.0
 
Feb. 24, 2021, noon 11.9 ppb (12) 2.1 ppb (2) N/A 10.0 ppb (10) N/A N/A 34.0 ppb (32) N/A N/A 0.0 μg/m3 (0) 32.0
 
Feb. 24, 2021, 11 a.m. 13.3 ppb (13) 1.7 ppb (2) N/A 12.0 ppb (12) N/A N/A 29.0 ppb (27) N/A N/A -1.0 μg/m3 (0) 27.0
 
Feb. 24, 2021, 10 a.m. 7.0 ppb (7) 1.3 ppb (2) N/A 6.0 ppb (6) N/A N/A 35.0 ppb (33) N/A N/A 0.0 μg/m3 (0) 33.0
 
Feb. 24, 2021, 9 a.m. 9.6 ppb (10) 1.2 ppb (2) N/A 8.0 ppb (8) N/A N/A 34.0 ppb (32) N/A N/A 2.0 μg/m3 (9) 32.0
 
Feb. 24, 2021, 8 a.m. 8.5 ppb (9) 1.6 ppb (2) N/A 7.0 ppb (7) N/A N/A 35.0 ppb (33) N/A N/A 1.0 μg/m3 (5) 33.0
 
Feb. 24, 2021, 7 a.m. 5.1 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) N/A N/A 0.0 μg/m3 (0) 38.0
 
Feb. 24, 2021, 6 a.m. 8.1 ppb (8) 2.2 ppb (3) N/A 6.0 ppb (6) N/A N/A 37.0 ppb (35) N/A N/A 1.0 μg/m3 (5) 35.0
 
Feb. 24, 2021, 5 a.m. 5.7 ppb (6) 1.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) N/A N/A 1.0 μg/m3 (5) 38.0
 
Feb. 24, 2021, 4 a.m. 6.4 ppb (7) 1.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 42.0 ppb (39) N/A N/A -1.0 μg/m3 (0) 39.0
 
Feb. 24, 2021, 3 a.m. 6.1 ppb (6) 1.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 43.0 ppb (40) N/A N/A 1.0 μg/m3 (5) 40.0
 
Feb. 24, 2021, 2 a.m. 4.7 ppb (5) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (43) N/A N/A 2.0 μg/m3 (9) 43.0
 
Feb. 24, 2021, 1 a.m. 6.1 ppb (6) 1.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (41) N/A N/A 0.0 μg/m3 (0) 41.0
 
Feb. 24, 2021, midnight 7.1 ppb (7) 1.6 ppb (2) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (41) N/A N/A 0.0 μg/m3 (0) 41.0
 
Feb. 23, 2021, 11 p.m. 3.8 ppb (4) 1.2 ppb (2) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (43) N/A N/A 0.0 μg/m3 (0) 43.0
 
Feb. 23, 2021, 10 p.m. 4.8 ppb (5) 1.7 ppb (2) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (43) N/A N/A 1.0 μg/m3 (5) 43.0
 
Feb. 23, 2021, 9 p.m. 4.6 ppb (5) 1.6 ppb (2) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (42) N/A N/A 1.0 μg/m3 (5) 42.0
 
Feb. 23, 2021, 8 p.m. 4.1 ppb (4) 1.4 ppb (2) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (42) N/A N/A 2.0 μg/m3 (9) 42.0
 
Feb. 23, 2021, 7 p.m. 2.6 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) N/A N/A 1.0 μg/m3 (5) 43.0
 
Feb. 23, 2021, 6 p.m. 3.5 ppb (4) 1.5 ppb (2) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (40) N/A N/A -1.0 μg/m3 (0) 40.0
 
Feb. 23, 2021, 5 p.m. 3.9 ppb (4) 2.3 ppb (3) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) N/A N/A -3.0 μg/m3 (0) 38.0
 
Feb. 23, 2021, 4 p.m. 2.6 ppb (3) 1.5 ppb (2) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) N/A N/A 0.0 μg/m3 (0) 38.0
 
Feb. 23, 2021, 3 p.m. 2.6 ppb (3) 1.4 ppb (2) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) N/A N/A 2.0 μg/m3 (9) 38.0
 
Feb. 23, 2021, 2 p.m. 2.6 ppb (3) 1.8 ppb (2) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) N/A N/A -3.0 μg/m3 (0) 38.0
 
Feb. 23, 2021, 1 p.m. 1.4 ppb (2) 1.6 ppb (2) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (39) N/A N/A -2.0 μg/m3 (0) 39.0
 
Feb. 23, 2021, noon 1.2 ppb (2) 1.3 ppb (2) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (39) N/A N/A 0.0 μg/m3 (0) 39.0
 
Feb. 23, 2021, 11 a.m. 1.1 ppb (2) 1.1 ppb (2) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (39) N/A N/A 0.0 μg/m3 (0) 39.0
 
Feb. 23, 2021, 10 a.m. 1.3 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (39) N/A N/A -1.0 μg/m3 (0) 39.0
 
Feb. 23, 2021, 9 a.m. 1.2 ppb (2) 0.7 ppb (1) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (39) N/A N/A 0.0 μg/m3 (0) 39.0
 
Feb. 23, 2021, 8 a.m. 1.3 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A N/A -1.0 μg/m3 (0) 40.0
 
Feb. 23, 2021, 7 a.m. 1.2 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A N/A 0.0 μg/m3 (0) 40.0
 
Feb. 23, 2021, 6 a.m. 1.2 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 5.0 μg/m3 (21) 39.0
 
Feb. 23, 2021, 5 a.m. 1.2 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 6.0 μg/m3 (25) 39.0
 
Feb. 23, 2021, 4 a.m. 1.3 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 0.0 μg/m3 (0) 39.0
 
Feb. 23, 2021, 3 a.m. 1.3 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A -2.0 μg/m3 (0) 39.0
 
Feb. 23, 2021, 2 a.m. 1.3 ppb (2) 0.9 ppb (1) N/A 0.0 ppb (0) N/A N/A 41.0 ppb (38) N/A N/A 0.0 μg/m3 (0) 38.0
 
Feb. 23, 2021, 1 a.m. 1.2 ppb (2) 1.5 ppb (2) N/A 0.0 ppb (0) N/A N/A 41.0 ppb (38) N/A N/A 2.0 μg/m3 (9) 38.0
 
Feb. 23, 2021, midnight 1.7 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) N/A N/A 3.0 μg/m3 (13) 38.0
 
Feb. 22, 2021, 11 p.m. 1.4 ppb (2) 0.9 ppb (1) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (39) N/A N/A 1.0 μg/m3 (5) 39.0
 
Feb. 22, 2021, 10 p.m. 1.5 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 1.0 μg/m3 (5) 39.0
 
Feb. 22, 2021, 9 p.m. 1.2 ppb (2) 0.9 ppb (1) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (39) N/A N/A 0.0 μg/m3 (0) 39.0
 
Feb. 22, 2021, 8 p.m. 1.5 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) N/A N/A -2.0 μg/m3 (0) 38.0
 
Feb. 22, 2021, 7 p.m. 1.9 ppb (2) 1.2 ppb (2) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 1.0 μg/m3 (5) 39.0
 
Feb. 22, 2021, 6 p.m. 1.8 ppb (2) 1.2 ppb (2) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 3.0 μg/m3 (13) 39.0
 
Feb. 22, 2021, 5 p.m. 1.4 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A 43.0 ppb (40) N/A N/A 0.0 μg/m3 (0) 40.0
 
Feb. 22, 2021, 4 p.m. 1.8 ppb (2) 1.2 ppb (2) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 0.0 μg/m3 (0) 39.0
 
Feb. 22, 2021, 3 p.m. 1.6 ppb (2) 1.1 ppb (2) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (39) N/A N/A 1.0 μg/m3 (5) 39.0
 
Feb. 22, 2021, 2 p.m. 2.1 ppb (2) 1.2 ppb (2) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 2.0 μg/m3 (9) 39.0