ID: 2833

AQSQID: 560391013

Site Name: Yellowstone- Old Faithful Snow Lodge

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

Updated: Jan. 19, 2022, 6:33 a.m.

Location: Yellowstone National Park (82190), WY

Reporting: True, Located: True

Current AQI: 25.0

Yellowstone National Park (82190) WY, US: 44.373056, -110.830833

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 19, 2022, 5 a.m. 3.3 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2022, 4 a.m. 2.5 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2022, 3 a.m. 1.3 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 19, 2022, 2 a.m. 1.5 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 19, 2022, 1 a.m. 2.5 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 19, 2022, midnight 2.6 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2022, 11 p.m. 1.7 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2022, 10 p.m. 1.8 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 18, 2022, 9 p.m. 2.7 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 18, 2022, 8 p.m. 4.4 ppb (5) 1.8 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 18, 2022, 7 p.m. 3.6 ppb (4) 1.4 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2022, 6 p.m. 3.9 ppb (4) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2022, 5 p.m. 2.8 ppb (3) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2022, 4 p.m. 3.3 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2022, 3 p.m. 15.3 ppb (15) 10.9 ppb (11) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2022, 2 p.m. 3.7 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
Jan. 18, 2022, 1 p.m. 2.8 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2022, noon 1.3 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2022, 11 a.m. 1.2 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2022, 10 a.m. 1.4 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 18, 2022, 9 a.m. 1.7 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A -1.0 μg/m3 (0) 2.0
 
Jan. 18, 2022, 8 a.m. 0.5 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A -1.0 μg/m3 (0) 1.0
 
Jan. 18, 2022, 7 a.m. 0.3 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A N/A N/A -1.0 μg/m3 (0) 1.0
 
Jan. 18, 2022, 6 a.m. 0.8 ppb (1) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 18, 2022, 5 a.m. 0.4 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 18, 2022, 4 a.m. 0.4 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 18, 2022, 3 a.m. 2.6 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 18, 2022, 2 a.m. 1.1 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Jan. 18, 2022, 1 a.m. 1.6 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 18, 2022, midnight 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 17, 2022, 11 p.m. 2.5 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 3.0
 
Jan. 17, 2022, 10 p.m. 7.0 ppb (7) 3.8 ppb (4) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 17, 2022, 9 p.m. 1.7 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 17, 2022, 8 p.m. 7.1 ppb (7) 3.7 ppb (4) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 17, 2022, 7 p.m. 3.5 ppb (4) 1.5 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2022, 6 p.m. 10.2 ppb (10) 5.3 ppb (5) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 10.0
 
Jan. 17, 2022, 5 p.m. 5.7 ppb (6) 2.6 ppb (3) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 6.0
 
Jan. 17, 2022, 4 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 17, 2022, 3 p.m. 1.4 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 17, 2022, 2 p.m. 1.8 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2022, 1 p.m. 2.3 ppb (3) 1.1 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 17, 2022, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 0.0
Jan. 17, 2022, 11 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
 
Jan. 17, 2022, 10 a.m. 0.7 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 17, 2022, 9 a.m. 2.6 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 3.0
 
Jan. 17, 2022, 8 a.m. 1.2 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 17, 2022, 7 a.m. 1.6 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 17, 2022, 6 a.m. 2.4 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 17, 2022, 5 a.m. 2.4 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 17, 2022, 4 a.m. 1.7 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 17, 2022, 3 a.m. 0.4 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 17, 2022, 2 a.m. 1.5 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 17, 2022, 1 a.m. 1.5 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2022, midnight 2.1 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 16, 2022, 11 p.m. 1.2 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Jan. 16, 2022, 10 p.m. 1.9 ppb (2) 1.3 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 16, 2022, 9 p.m. 2.4 ppb (3) 1.3 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 16, 2022, 8 p.m. 6.2 ppb (6) 3.4 ppb (4) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 6.0
 
Jan. 16, 2022, 7 p.m. 5.4 ppb (6) 2.4 ppb (3) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 16, 2022, 6 p.m. 5.9 ppb (6) 2.9 ppb (3) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 16, 2022, 5 p.m. 3.0 ppb (3) 1.2 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 16, 2022, 4 p.m. 2.9 ppb (3) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 16, 2022, 3 p.m. 3.6 ppb (4) 1.6 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 16, 2022, 2 p.m. 1.9 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Jan. 16, 2022, 1 p.m. 3.1 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 16, 2022, noon 1.0 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2022, 11 a.m. 0.6 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2022, 10 a.m. 2.0 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 16, 2022, 9 a.m. 1.3 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 16, 2022, 8 a.m. 1.2 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 16, 2022, 7 a.m. 1.6 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 16, 2022, 6 a.m. 3.4 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2022, 5 a.m. 2.8 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 16, 2022, 4 a.m. 1.8 ppb (2) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 16, 2022, 3 a.m. 2.8 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 16, 2022, 2 a.m. 2.6 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 16, 2022, 1 a.m. 0.9 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 16, 2022, midnight 0.6 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 15, 2022, 11 p.m. 1.8 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 15, 2022, 10 p.m. 1.4 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 15, 2022, 9 p.m. 2.7 ppb (3) 1.2 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A -2.0 μg/m3 (0) 3.0
 
Jan. 15, 2022, 8 p.m. 6.7 ppb (7) 4.2 ppb (4) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A -1.0 μg/m3 (0) 7.0
 
Jan. 15, 2022, 7 p.m. 12.3 ppb (12) 6.6 ppb (7) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 12.0
 
Jan. 15, 2022, 6 p.m. 8.3 ppb (8) 3.6 ppb (4) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 15, 2022, 5 p.m. 5.5 ppb (6) 2.9 ppb (3) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2022, 4 p.m. 3.3 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 15, 2022, 3 p.m. 8.3 ppb (8) 3.7 ppb (4) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 15, 2022, 2 p.m. 5.4 ppb (6) 3.0 ppb (3) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 15, 2022, 1 p.m. 2.5 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 15, 2022, noon 2.6 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 15, 2022, 11 a.m. 1.1 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 15, 2022, 10 a.m. 0.8 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 15, 2022, 9 a.m. 0.5 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 15, 2022, 8 a.m. 0.5 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 15, 2022, 7 a.m. 0.3 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 15, 2022, 6 a.m. 0.3 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 15, 2022, 5 a.m. 0.4 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 15, 2022, 4 a.m. 1.2 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 15, 2022, 3 a.m. 0.2 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 15, 2022, 2 a.m. 1.2 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Jan. 15, 2022, 1 a.m. 1.7 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Jan. 15, 2022, midnight 2.3 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 14, 2022, 11 p.m. 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 14, 2022, 10 p.m. 0.5 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 14, 2022, 9 p.m. 0.8 ppb (1) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 14, 2022, 8 p.m. 0.5 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 14, 2022, 7 p.m. 2.0 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 2.0
 
Jan. 14, 2022, 6 p.m. 6.2 ppb (6) 2.6 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 6.0
 
Jan. 14, 2022, 5 p.m. 4.5 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 14, 2022, 4 p.m. 7.7 ppb (8) 2.8 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 8.0
 
Jan. 14, 2022, 3 p.m. 5.8 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 6.0
 
Jan. 14, 2022, 2 p.m. 3.2 ppb (4) 1.3 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 14, 2022, 1 p.m. 1.8 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2022, noon 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
 
Jan. 14, 2022, 11 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
 
Jan. 14, 2022, 10 a.m. 0.6 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 14, 2022, 9 a.m. 0.6 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 14, 2022, 8 a.m. 1.4 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 14, 2022, 7 a.m. 1.3 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 14, 2022, 6 a.m. 1.7 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 14, 2022, 5 a.m. 2.7 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 14, 2022, 4 a.m. 1.5 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 14, 2022, 3 a.m. 1.1 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 14, 2022, 2 a.m. 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 14, 2022, 1 a.m. 5.5 ppb (6) 1.2 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 14, 2022, midnight 3.8 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 13, 2022, 11 p.m. 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A -1.0 μg/m3 (0) 3.0
 
Jan. 13, 2022, 10 p.m. 4.9 ppb (5) 1.3 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A -1.0 μg/m3 (0) 5.0
 
Jan. 13, 2022, 9 p.m. 6.3 ppb (6) 2.2 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 6.0
 
Jan. 13, 2022, 8 p.m. 11.1 ppb (11) 5.5 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 11.0
 
Jan. 13, 2022, 7 p.m. 7.7 ppb (8) 3.2 ppb (4) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A -1.0 μg/m3 (0) 8.0
 
Jan. 13, 2022, 6 p.m. 4.8 ppb (5) 1.5 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A -1.0 μg/m3 (0) 5.0
 
Jan. 13, 2022, 5 p.m. 6.1 ppb (6) 2.2 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 6.0
 
Jan. 13, 2022, 4 p.m. 6.8 ppb (7) 1.7 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 7.0
 
Jan. 13, 2022, 3 p.m. 11.0 ppb (11) 5.5 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 13, 2022, 2 p.m. 1.6 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 13, 2022, 1 p.m. 0.5 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 13, 2022, noon 0.3 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 13, 2022, 11 a.m. 0.3 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 13, 2022, 10 a.m. 0.8 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 13, 2022, 9 a.m. 0.6 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 1.0
 
Jan. 13, 2022, 8 a.m. 0.8 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 1.0
 
Jan. 13, 2022, 7 a.m. 1.2 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 13, 2022, 6 a.m. 0.8 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 13, 2022, 5 a.m. 0.9 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 13, 2022, 4 a.m. 0.3 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 13, 2022, 3 a.m. 1.3 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2022, 2 a.m. 1.3 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2022, 1 a.m. 1.3 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 13, 2022, midnight 2.7 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 12, 2022, 11 p.m. 1.2 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 12, 2022, 10 p.m. 3.1 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 12, 2022, 9 p.m. 2.2 ppb (3) 1.2 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 12, 2022, 8 p.m. 4.2 ppb (4) 2.1 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 12, 2022, 7 p.m. 6.7 ppb (7) 3.9 ppb (4) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 7.0
 
Jan. 12, 2022, 6 p.m. 4.0 ppb (4) 2.5 ppb (3) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 12, 2022, 5 p.m. 2.6 ppb (3) 1.2 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 12, 2022, 4 p.m. 2.6 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 3.0
 
Jan. 12, 2022, 3 p.m. 0.9 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 12, 2022, 2 p.m. 2.7 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 12, 2022, 1 p.m. 1.1 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 12, 2022, noon 0.9 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 12, 2022, 11 a.m. 2.1 ppb (2) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 12, 2022, 10 a.m. 1.1 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 12, 2022, 9 a.m. 2.8 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 12, 2022, 8 a.m. 0.6 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 12, 2022, 7 a.m. 0.5 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 12, 2022, 6 a.m. 0.4 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 1.0