ID: 2455

AQSQID: 060270022

Site Name: Dirty Socks

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

Updated: March 3, 2021, 10:32 p.m.

Location: Death Valley (California Hwy 190), CA

Reporting: True, Located: True

Current AQI: 16.0

Death Valley (California Hwy 190) CA, US: 36.3261, -117.9551

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 24, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 24, 2021, 8 p.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. 24, 2021, 7 p.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. 24, 2021, 6 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, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.6 μg/m3 (7) N/A 7.0
 
Feb. 24, 2021, 4 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. 24, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.5 μg/m3 (13) N/A 13.0
 
Feb. 24, 2021, 2 p.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. 24, 2021, 1 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. 24, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 3.8 μg/m3 (4) N/A 4.0
 
Feb. 24, 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. 24, 2021, 10 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. 24, 2021, 9 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. 24, 2021, 8 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. 24, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.2 μg/m3 (9) N/A 9.0
 
Feb. 24, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.7 μg/m3 (16) N/A 16.0
 
Feb. 24, 2021, 5 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. 24, 2021, 4 a.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. 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.6 μg/m3 (1) N/A 1.0
 
Feb. 24, 2021, 2 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. 24, 2021, 1 a.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. 24, 2021, midnight 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. 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.1 μg/m3 (11) N/A 11.0
 
Feb. 23, 2021, 10 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. 23, 2021, 9 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. 23, 2021, 8 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. 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.6 μg/m3 (22) N/A 22.0
 
Feb. 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.6 μg/m3 (14) N/A 14.0
 
Feb. 23, 2021, 5 p.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. 23, 2021, 4 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, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.1 μg/m3 (12) N/A 12.0
 
Feb. 23, 2021, 2 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. 23, 2021, 1 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. 23, 2021, noon 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. 23, 2021, 11 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. 23, 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
 
Feb. 23, 2021, 9 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. 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.4 μg/m3 (2) N/A 2.0
 
Feb. 23, 2021, 7 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. 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.9 μg/m3 (7) N/A 7.0
 
Feb. 23, 2021, 5 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. 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.8 μg/m3 (6) N/A 6.0
 
Feb. 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.8 μg/m3 (6) N/A 6.0
 
Feb. 23, 2021, 2 a.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. 23, 2021, 1 a.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. 23, 2021, midnight 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, 11 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. 22, 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. 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.8 μg/m3 (3) N/A 3.0
 
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 2.9 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 4.0 μg/m3 (4) N/A 4.0
 
Feb. 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.9 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 11.9 μg/m3 (12) N/A 12.0
 
Feb. 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.3 μg/m3 (6) N/A 6.0
 
Feb. 22, 2021, 1 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, noon 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. 22, 2021, 11 a.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, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.8 μg/m3 (4) N/A 4.0
 
Feb. 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.3 μg/m3 (7) N/A 7.0
 
Feb. 22, 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. 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.9 μg/m3 (7) N/A 7.0
 
Feb. 22, 2021, 6 a.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. 22, 2021, 5 a.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. 22, 2021, 4 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. 22, 2021, 3 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. 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) N/A 10.0
 
Feb. 22, 2021, 1 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. 22, 2021, midnight 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. 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 3.3 μg/m3 (4) N/A 4.0
 
Feb. 21, 2021, 9 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, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.2 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 4.1 μg/m3 (4) N/A 4.0
 
Feb. 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.2 μg/m3 (8) N/A 8.0
 
Feb. 21, 2021, 4 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. 21, 2021, 3 p.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. 21, 2021, 2 p.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 p.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, noon N/A N/A N/A N/A N/A N/A N/A N/A 5.8 μg/m3 (6) N/A 6.0
 
Feb. 21, 2021, 11 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, 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. 21, 2021, 9 a.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. 21, 2021, 8 a.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. 21, 2021, 7 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. 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) N/A 9.0
 
Feb. 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) N/A 9.0
 
Feb. 21, 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. 21, 2021, 3 a.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. 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.4 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 4.3 μg/m3 (4) N/A 4.0
 
Feb. 21, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 39.4 μg/m3 (37) N/A 37.0
 
Feb. 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 616.5 μg/m3 (513) N/A 513.0
 
Feb. 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 192.5 μg/m3 (120) N/A 120.0
 
Feb. 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 52.8 μg/m3 (49) N/A 49.0
 
Feb. 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (34) N/A 34.0
 
Feb. 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.2 μg/m3 (38) N/A 38.0
 
Feb. 20, 2021, 6 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, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.3 μg/m3 (12) N/A 12.0
 
Feb. 20, 2021, 4 p.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. 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.7 μg/m3 (23) N/A 23.0
 
Feb. 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.5 μg/m3 (13) N/A 13.0
 
Feb. 20, 2021, 1 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. 20, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 20, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 19, 2021, 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
Feb. 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 19, 2021, 1 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. 19, 2021, noon 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. 19, 2021, 11 a.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. 19, 2021, 10 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. 19, 2021, 9 a.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 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. 19, 2021, 7 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. 19, 2021, 6 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. 19, 2021, 5 a.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. 19, 2021, 4 a.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, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.4 μg/m3 (5) N/A 5.0
 
Feb. 19, 2021, 2 a.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. 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.4 μg/m3 (9) N/A 9.0
 
Feb. 19, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 15.8 μg/m3 (15) N/A 15.0
 
Feb. 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.1 μg/m3 (13) N/A 13.0
 
Feb. 18, 2021, 10 p.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. 18, 2021, 9 p.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. 18, 2021, 8 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. 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) N/A 2.0
 
Feb. 18, 2021, 6 p.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. 18, 2021, 5 p.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. 18, 2021, 4 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. 18, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) N/A 9.0
 
Feb. 18, 2021, 2 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, 1 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, noon 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. 18, 2021, 11 a.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. 18, 2021, 10 a.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, 9 a.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. 18, 2021, 8 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. 18, 2021, 7 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. 18, 2021, 6 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. 18, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.3 μg/m3 (8) N/A 8.0
 
Feb. 18, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.1 μg/m3 (9) N/A 9.0
 
Feb. 18, 2021, 3 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. 18, 2021, 2 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. 18, 2021, 1 a.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. 18, 2021, midnight 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. 17, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.6 μg/m3 (21) N/A 21.0
 
Feb. 17, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 60.5 μg/m3 (54) N/A 54.0