ID: 1270

AQSQID: 530710005

Site Name: Walla Walla-12th St

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

Updated: Sept. 28, 2020, 7:38 a.m.

Location: Walla Walla (W Birch St), WA

Reporting: True, Located: True

Current AQI: 81.0

Walla Walla (W Birch St) WA, US: 46.0588, -118.3514

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 28, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 26.5 μg/m3 (81) 81.0
 
Sept. 28, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 27.8 μg/m3 (84) 84.0
 
Sept. 28, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 33.6 μg/m3 (96) 96.0
 
Sept. 28, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 32.4 μg/m3 (93) 93.0
 
Sept. 28, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 21.5 μg/m3 (70) 70.0
 
Sept. 28, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 21.5 μg/m3 (70) 70.0
 
Sept. 28, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 26.3 μg/m3 (80) 80.0
 
Sept. 27, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.8 μg/m3 (45) 45.0
 
Sept. 27, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.2 μg/m3 (9) 9.0
 
Sept. 27, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.1 μg/m3 (5) 5.0
 
Sept. 27, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.1 μg/m3 (5) 5.0
 
Sept. 27, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.4 μg/m3 (6) 6.0
 
Sept. 27, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.4 μg/m3 (6) 6.0
 
Sept. 27, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.5 μg/m3 (6) 6.0
 
Sept. 27, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.9 μg/m3 (8) 8.0
 
Sept. 27, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.9 μg/m3 (8) 8.0
 
Sept. 27, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.8 μg/m3 (8) 8.0
 
Sept. 27, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.8 μg/m3 (8) 8.0
 
Sept. 27, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.9 μg/m3 (8) 8.0
 
Sept. 27, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.9 μg/m3 (8) 8.0
 
Sept. 27, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.8 μg/m3 (8) 8.0
 
Sept. 27, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.8 μg/m3 (8) 8.0
 
Sept. 27, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.9 μg/m3 (8) 8.0
 
Sept. 27, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.8 μg/m3 (8) 8.0
 
Sept. 27, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.6 μg/m3 (7) 7.0
 
Sept. 27, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.7 μg/m3 (7) 7.0
 
Sept. 27, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.7 μg/m3 (7) 7.0
 
Sept. 27, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.8 μg/m3 (8) 8.0
 
Sept. 27, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.9 μg/m3 (8) 8.0
 
Sept. 27, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.6 μg/m3 (7) 7.0
 
Sept. 27, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.5 μg/m3 (6) 6.0
 
Sept. 26, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.3 μg/m3 (5) 5.0
 
Sept. 26, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.4 μg/m3 (6) 6.0
 
Sept. 26, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.4 μg/m3 (6) 6.0
 
Sept. 26, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.2 μg/m3 (5) 5.0
 
Sept. 26, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.5 μg/m3 (6) 6.0
 
Sept. 26, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.3 μg/m3 (5) 5.0
 
Sept. 26, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.3 μg/m3 (5) 5.0
 
Sept. 26, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.4 μg/m3 (6) 6.0
 
Sept. 26, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.1 μg/m3 (5) 5.0
 
Sept. 26, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.1 μg/m3 (5) 5.0
 
Sept. 26, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.5 μg/m3 (2) 2.0
 
Sept. 26, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.4 μg/m3 (2) 2.0
 
Sept. 26, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.8 μg/m3 (3) 3.0
 
Sept. 26, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.1 μg/m3 (5) 5.0
 
Sept. 26, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.3 μg/m3 (5) 5.0
 
Sept. 26, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.3 μg/m3 (5) 5.0
 
Sept. 26, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.2 μg/m3 (5) 5.0
 
Sept. 26, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 26, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.8 μg/m3 (3) 3.0
 
Sept. 26, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.8 μg/m3 (3) 3.0
 
Sept. 26, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.9 μg/m3 (4) 4.0
 
Sept. 26, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.2 μg/m3 (9) 9.0
 
Sept. 26, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.9 μg/m3 (8) 8.0
 
Sept. 25, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.1 μg/m3 (9) 9.0
 
Sept. 25, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.9 μg/m3 (12) 12.0
 
Sept. 25, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.2 μg/m3 (13) 13.0
 
Sept. 25, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.7 μg/m3 (15) 15.0
 
Sept. 25, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.6 μg/m3 (15) 15.0
 
Sept. 25, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.2 μg/m3 (18) 18.0
 
Sept. 25, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.7 μg/m3 (20) 20.0
 
Sept. 25, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.7 μg/m3 (20) 20.0
 
Sept. 25, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.6 μg/m3 (15) 15.0
 
Sept. 25, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 25, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.9 μg/m3 (12) 12.0
 
Sept. 25, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.8 μg/m3 (12) 12.0
 
Sept. 25, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.8 μg/m3 (12) 12.0
 
Sept. 25, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.8 μg/m3 (12) 12.0
 
Sept. 25, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.9 μg/m3 (12) 12.0
 
Sept. 25, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.4 μg/m3 (14) 14.0
 
Sept. 25, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.1 μg/m3 (13) 13.0
 
Sept. 25, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.1 μg/m3 (13) 13.0
 
Sept. 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.5 μg/m3 (15) 15.0
 
Sept. 25, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.7 μg/m3 (15) 15.0
 
Sept. 25, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.8 μg/m3 (28) 28.0
 
Sept. 25, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
Sept. 25, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 25, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.6 μg/m3 (11) 11.0
 
Sept. 24, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.5 μg/m3 (10) 10.0
 
Sept. 24, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.7 μg/m3 (11) 11.0
 
Sept. 24, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.6 μg/m3 (11) 11.0
 
Sept. 24, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.3 μg/m3 (10) 10.0
 
Sept. 24, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.1 μg/m3 (9) 9.0
 
Sept. 24, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.2 μg/m3 (9) 9.0
 
Sept. 24, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.3 μg/m3 (10) 10.0
 
Sept. 24, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 24, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.9 μg/m3 (8) 8.0
 
Sept. 24, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 24, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.9 μg/m3 (8) 8.0
 
Sept. 24, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.7 μg/m3 (7) 7.0
 
Sept. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.6 μg/m3 (7) 7.0
 
Sept. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.4 μg/m3 (6) 6.0
 
Sept. 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.1 μg/m3 (5) 5.0
 
Sept. 24, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.8 μg/m3 (8) 8.0
 
Sept. 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.8 μg/m3 (24) 24.0
 
Sept. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.3 μg/m3 (55) 55.0
 
Sept. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.5 μg/m3 (62) 62.0
 
Sept. 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 20.8 μg/m3 (69) 69.0
 
Sept. 24, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 21.6 μg/m3 (70) 70.0
 
Sept. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 22.2 μg/m3 (72) 72.0
 
Sept. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 23.9 μg/m3 (75) 75.0
 
Sept. 24, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 24.4 μg/m3 (76) 76.0
 
Sept. 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 24.1 μg/m3 (76) 76.0
 
Sept. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 23.1 μg/m3 (74) 74.0
 
Sept. 23, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 21.2 μg/m3 (70) 70.0
 
Sept. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.5 μg/m3 (64) 64.0
 
Sept. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.3 μg/m3 (57) 57.0
 
Sept. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.9 μg/m3 (52) 52.0
 
Sept. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.1 μg/m3 (50) 50.0
 
Sept. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.5 μg/m3 (51) 51.0
 
Sept. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.8 μg/m3 (49) 49.0
 
Sept. 23, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.8 μg/m3 (49) 49.0
 
Sept. 23, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.6 μg/m3 (48) 48.0
 
Sept. 23, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.5 μg/m3 (48) 48.0
 
Sept. 23, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.1 μg/m3 (46) 46.0
 
Sept. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (44) 44.0
 
Sept. 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.8 μg/m3 (45) 45.0
 
Sept. 23, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.7 μg/m3 (49) 49.0
 
Sept. 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.9 μg/m3 (52) 52.0
 
Sept. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (51) 51.0
 
Sept. 23, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.3 μg/m3 (51) 51.0
 
Sept. 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.3 μg/m3 (51) 51.0
 
Sept. 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.2 μg/m3 (53) 53.0
 
Sept. 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (51) 51.0
 
Sept. 23, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.8 μg/m3 (49) 49.0
 
Sept. 22, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (51) 51.0
 
Sept. 22, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.1 μg/m3 (46) 46.0
 
Sept. 22, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (41) 41.0
 
Sept. 22, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.6 μg/m3 (40) 40.0
 
Sept. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.8 μg/m3 (32) 32.0
 
Sept. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.1 μg/m3 (38) 38.0
 
Sept. 22, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (41) 41.0
 
Sept. 22, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 22, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (44) 44.0
 
Sept. 22, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.2 μg/m3 (47) 47.0
 
Sept. 22, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (51) 51.0
 
Sept. 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.2 μg/m3 (50) 50.0
 
Sept. 22, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 22, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.2 μg/m3 (42) 42.0
 
Sept. 22, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (43) 43.0
 
Sept. 22, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.2 μg/m3 (42) 42.0
 
Sept. 22, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.1 μg/m3 (42) 42.0
 
Sept. 22, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (41) 41.0
 
Sept. 22, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.6 μg/m3 (40) 40.0
 
Sept. 22, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (40) 40.0
 
Sept. 22, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.3 μg/m3 (43) 43.0
 
Sept. 22, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.8 μg/m3 (37) 37.0
 
Sept. 22, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.8 μg/m3 (37) 37.0
 
Sept. 21, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 21, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (40) 40.0
 
Sept. 21, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.3 μg/m3 (43) 43.0
 
Sept. 21, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 21, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.2 μg/m3 (47) 47.0
 
Sept. 21, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.6 μg/m3 (48) 48.0
 
Sept. 21, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.9 μg/m3 (50) 50.0
 
Sept. 21, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.2 μg/m3 (50) 50.0
 
Sept. 21, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.5 μg/m3 (48) 48.0
 
Sept. 21, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.9 μg/m3 (56) 56.0
 
Sept. 21, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.4 μg/m3 (48) 48.0
 
Sept. 21, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.5 μg/m3 (40) 40.0
 
Sept. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (40) 40.0
 
Sept. 21, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.2 μg/m3 (42) 42.0
 
Sept. 21, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.3 μg/m3 (43) 43.0
 
Sept. 21, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (45) 45.0
 
Sept. 21, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.1 μg/m3 (46) 46.0