ID: 2117

AQSQID: 160050020

Site Name: Shoshone Bannock Tribes

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

Updated: March 4, 2021, 6:32 p.m.

Location: Arbon (83212), ID

Reporting: True, Located: True

Current AQI: 20.0

Arbon (83212) ID, US: 42.589833, -112.458889

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 25, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.1 μg/m3 (2) N/A 2.0
 
Feb. 25, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 4.1 μg/m3 (4) N/A 4.0
 
Feb. 25, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.6 μg/m3 (8) N/A 8.0
 
Feb. 25, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.9 μg/m3 (9) N/A 9.0
 
Feb. 25, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.6 μg/m3 (13) N/A 13.0
 
Feb. 25, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.9 μg/m3 (16) N/A 16.0
 
Feb. 25, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.3 μg/m3 (10) N/A 10.0
 
Feb. 25, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.4 μg/m3 (6) N/A 6.0
 
Feb. 25, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) N/A 8.0
 
Feb. 25, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.3 μg/m3 (15) N/A 15.0
 
Feb. 25, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.8 μg/m3 (14) N/A 14.0
 
Feb. 25, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.3 μg/m3 (5) N/A 5.0
 
Feb. 25, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A -1.3 μg/m3 (0) N/A 0.0
Feb. 25, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A -2.7 μg/m3 (0) N/A 0.0
Feb. 24, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.7 μg/m3 (6) N/A 6.0
 
Feb. 24, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (10) N/A 10.0
 
Feb. 24, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.8 μg/m3 (10) N/A 10.0
 
Feb. 24, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) N/A 12.0
 
Feb. 24, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.9 μg/m3 (12) N/A 12.0
 
Feb. 24, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.2 μg/m3 (15) N/A 15.0
 
Feb. 24, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.3 μg/m3 (16) N/A 16.0
 
Feb. 24, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.5 μg/m3 (12) N/A 12.0
 
Feb. 24, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.5 μg/m3 (8) N/A 8.0
 
Feb. 24, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.1 μg/m3 (7) N/A 7.0
 
Feb. 24, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.4 μg/m3 (5) N/A 5.0
 
Feb. 24, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 2.4 μg/m3 (3) N/A 3.0
 
Feb. 24, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) N/A 3.0
 
Feb. 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.9 μg/m3 (6) N/A 6.0
 
Feb. 24, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.9 μg/m3 (11) N/A 11.0
 
Feb. 24, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.5 μg/m3 (12) N/A 12.0
 
Feb. 24, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.5 μg/m3 (15) N/A 15.0
 
Feb. 24, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.9 μg/m3 (15) N/A 15.0
 
Feb. 24, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.5 μg/m3 (10) N/A 10.0
 
Feb. 24, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.5 μg/m3 (9) N/A 9.0
 
Feb. 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.2 μg/m3 (12) N/A 12.0
 
Feb. 24, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (12) N/A 12.0
 
Feb. 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) N/A 1.0
 
Feb. 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.1 μg/m3 (3) N/A 3.0
 
Feb. 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) N/A 13.0
 
Feb. 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) N/A 13.0
 
Feb. 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.2 μg/m3 (7) N/A 7.0
 
Feb. 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.5 μg/m3 (10) N/A 10.0
 
Feb. 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.6 μg/m3 (11) N/A 11.0
 
Feb. 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.2 μg/m3 (11) N/A 11.0
 
Feb. 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.6 μg/m3 (8) N/A 8.0
 
Feb. 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.8 μg/m3 (1) N/A 1.0
 
Feb. 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.3 μg/m3 (2) N/A 2.0
 
Feb. 23, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 9.5 μg/m3 (9) N/A 9.0
 
Feb. 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.7 μg/m3 (7) N/A 7.0
 
Feb. 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.5 μg/m3 (1) N/A 1.0
 
Feb. 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.7 μg/m3 (4) N/A 4.0
 
Feb. 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.5 μg/m3 (5) N/A 5.0
 
Feb. 23, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.7 μg/m3 (6) N/A 6.0
 
Feb. 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.4 μg/m3 (3) N/A 3.0
 
Feb. 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A -1.4 μg/m3 (0) N/A 0.0
Feb. 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.4 μg/m3 (1) N/A 1.0
 
Feb. 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.6 μg/m3 (3) N/A 3.0
 
Feb. 23, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.3 μg/m3 (2) N/A 2.0
 
Feb. 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.1 μg/m3 (2) N/A 2.0
 
Feb. 23, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 2.4 μg/m3 (3) N/A 3.0
 
Feb. 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.9 μg/m3 (4) N/A 4.0
 
Feb. 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) N/A 7.0
 
Feb. 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.7 μg/m3 (6) N/A 6.0
 
Feb. 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.1 μg/m3 (2) N/A 2.0
 
Feb. 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.7 μg/m3 (3) N/A 3.0
 
Feb. 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.1 μg/m3 (5) N/A 5.0
 
Feb. 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.2 μg/m3 (7) N/A 7.0
 
Feb. 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.2 μg/m3 (7) N/A 7.0
 
Feb. 22, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.1 μg/m3 (6) N/A 6.0
 
Feb. 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) N/A 5.0
 
Feb. 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.8 μg/m3 (5) N/A 5.0
 
Feb. 22, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 6.1 μg/m3 (6) N/A 6.0
 
Feb. 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.7 μg/m3 (7) N/A 7.0
 
Feb. 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.4 μg/m3 (7) N/A 7.0
 
Feb. 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.8 μg/m3 (10) N/A 10.0
 
Feb. 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.2 μg/m3 (10) N/A 10.0
 
Feb. 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.4 μg/m3 (8) N/A 8.0
 
Feb. 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.7 μg/m3 (8) N/A 8.0
 
Feb. 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.5 μg/m3 (8) N/A 8.0
 
Feb. 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.5 μg/m3 (7) N/A 7.0
 
Feb. 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.7 μg/m3 (4) N/A 4.0
 
Feb. 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.4 μg/m3 (4) N/A 4.0
 
Feb. 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.1 μg/m3 (2) N/A 2.0
 
Feb. 22, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 2.9 μg/m3 (3) N/A 3.0
 
Feb. 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.6 μg/m3 (5) N/A 5.0
 
Feb. 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.7 μg/m3 (5) N/A 5.0
 
Feb. 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.4 μg/m3 (4) N/A 4.0
 
Feb. 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.8 μg/m3 (2) N/A 2.0
 
Feb. 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.1 μg/m3 (3) N/A 3.0
 
Feb. 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) N/A 6.0
 
Feb. 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.8 μg/m3 (5) N/A 5.0
 
Feb. 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.5 μg/m3 (3) N/A 3.0
 
Feb. 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.1 μg/m3 (2) N/A 2.0
 
Feb. 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A -0.2 μg/m3 (0) N/A 0.0
Feb. 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.9 μg/m3 (1) N/A 1.0
 
Feb. 21, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 2.4 μg/m3 (3) N/A 3.0
 
Feb. 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.9 μg/m3 (2) N/A 2.0
 
Feb. 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.5 μg/m3 (2) N/A 2.0
 
Feb. 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.2 μg/m3 (4) N/A 4.0
 
Feb. 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.1 μg/m3 (8) N/A 8.0
 
Feb. 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (10) N/A 10.0
 
Feb. 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.8 μg/m3 (8) N/A 8.0
 
Feb. 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.2 μg/m3 (5) N/A 5.0
 
Feb. 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.1 μg/m3 (6) N/A 6.0
 
Feb. 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.5 μg/m3 (6) N/A 6.0
 
Feb. 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.2 μg/m3 (5) N/A 5.0
 
Feb. 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) N/A 8.0
 
Feb. 21, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 6.4 μg/m3 (6) N/A 6.0
 
Feb. 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.7 μg/m3 (2) N/A 2.0
 
Feb. 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.6 μg/m3 (4) N/A 4.0
 
Feb. 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.8 μg/m3 (8) N/A 8.0
 
Feb. 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.6 μg/m3 (11) N/A 11.0
 
Feb. 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.1 μg/m3 (14) N/A 14.0
 
Feb. 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.1 μg/m3 (5) N/A 5.0
 
Feb. 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.7 μg/m3 (7) N/A 7.0
 
Feb. 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) N/A 12.0
 
Feb. 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A -3.2 μg/m3 (0) N/A 0.0
Feb. 20, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 6.8 μg/m3 (7) N/A 7.0
 
Feb. 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.3 μg/m3 (15) N/A 15.0
 
Feb. 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.4 μg/m3 (11) N/A 11.0
 
Feb. 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.9 μg/m3 (8) N/A 8.0
 
Feb. 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.9 μg/m3 (9) N/A 9.0
 
Feb. 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (10) N/A 10.0
 
Feb. 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.9 μg/m3 (9) N/A 9.0
 
Feb. 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) N/A 6.0
 
Feb. 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.3 μg/m3 (4) N/A 4.0
 
Feb. 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) N/A 4.0
 
Feb. 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.1 μg/m3 (4) N/A 4.0
 
Feb. 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.9 μg/m3 (3) N/A 3.0
 
Feb. 20, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 4.1 μg/m3 (4) N/A 4.0
 
Feb. 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.2 μg/m3 (6) N/A 6.0
 
Feb. 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.9 μg/m3 (6) N/A 6.0
 
Feb. 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.9 μg/m3 (5) N/A 5.0
 
Feb. 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.7 μg/m3 (6) N/A 6.0
 
Feb. 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.6 μg/m3 (6) N/A 6.0
 
Feb. 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.5 μg/m3 (4) N/A 4.0
 
Feb. 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.5 μg/m3 (1) N/A 1.0
 
Feb. 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A -0.7 μg/m3 (0) N/A 0.0
Feb. 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.2 μg/m3 (1) N/A 1.0
 
Feb. 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.9 μg/m3 (4) N/A 4.0
 
Feb. 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.8 μg/m3 (10) N/A 10.0
 
Feb. 19, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 13.2 μg/m3 (13) N/A 13.0
 
Feb. 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.6 μg/m3 (9) N/A 9.0
 
Feb. 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.8 μg/m3 (7) N/A 7.0
 
Feb. 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.5 μg/m3 (7) N/A 7.0
 
Feb. 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.4 μg/m3 (5) N/A 5.0
 
Feb. 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.3 μg/m3 (4) N/A 4.0
 
Feb. 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.7 μg/m3 (7) N/A 7.0
 
Feb. 19, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.2 μg/m3 (7) N/A 7.0
 
Feb. 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.4 μg/m3 (5) N/A 5.0
 
Feb. 19, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.8 μg/m3 (2) N/A 2.0
 
Feb. 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.5 μg/m3 (2) N/A 2.0
 
Feb. 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.7 μg/m3 (3) N/A 3.0
 
Feb. 19, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 4.8 μg/m3 (5) N/A 5.0
 
Feb. 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.3 μg/m3 (9) N/A 9.0
 
Feb. 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.3 μg/m3 (11) N/A 11.0
 
Feb. 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.4 μg/m3 (7) N/A 7.0
 
Feb. 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.5 μg/m3 (4) N/A 4.0
 
Feb. 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.9 μg/m3 (4) N/A 4.0
 
Feb. 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.7 μg/m3 (6) N/A 6.0
 
Feb. 18, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.4 μg/m3 (7) N/A 7.0
 
Feb. 18, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.4 μg/m3 (5) N/A 5.0
 
Feb. 18, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A -0.7 μg/m3 (0) N/A 0.0
Feb. 18, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A -0.9 μg/m3 (0) N/A 0.0
Feb. 18, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A -0.1 μg/m3 (0) N/A 0.0
Feb. 18, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 1.1 μg/m3 (2) N/A 2.0
 
Feb. 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) N/A 6.0
 
Feb. 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.6 μg/m3 (8) N/A 8.0