ID: 1859

AQSQID: 181270023

Site Name: Portage-Hwy 12

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

Updated: May 14, 2021, 6:45 a.m.

Location: Portage (Dunes Hwy), IN

Reporting: True, Located: True

Current AQI: 14.0

Portage (Dunes Hwy) IN, US: 41.6167, -87.1458

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 14, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.4 μg/m3 (14) N/A 14.0
 
May 14, 2021, 4 a.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
 
May 14, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.4 μg/m3 (13) N/A 13.0
 
May 14, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) N/A 14.0
 
May 14, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.8 μg/m3 (13) N/A 13.0
 
May 14, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 21.1 μg/m3 (20) N/A 20.0
 
May 13, 2021, 11 p.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
 
May 13, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.5 μg/m3 (19) N/A 19.0
 
May 13, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.8 μg/m3 (17) N/A 17.0
 
May 13, 2021, 8 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
 
May 13, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.9 μg/m3 (22) N/A 22.0
 
May 13, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.4 μg/m3 (30) N/A 30.0
 
May 13, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.8 μg/m3 (22) N/A 22.0
 
May 13, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.4 μg/m3 (25) N/A 25.0
 
May 13, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 69.1 μg/m3 (58) N/A 58.0
 
May 13, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 121.5 μg/m3 (84) N/A 84.0
 
May 13, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 56.2 μg/m3 (52) N/A 52.0
 
May 13, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 23.2 μg/m3 (22) N/A 22.0
 
May 13, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.7 μg/m3 (13) N/A 13.0
 
May 13, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (10) N/A 10.0
 
May 13, 2021, 9 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
 
May 13, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) N/A 11.0
 
May 13, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.1 μg/m3 (10) N/A 10.0
 
May 13, 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
 
May 13, 2021, 5 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
 
May 13, 2021, 4 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
 
May 13, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.8 μg/m3 (9) N/A 9.0
 
May 13, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.8 μg/m3 (9) N/A 9.0
 
May 13, 2021, 1 a.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
 
May 13, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 16.5 μg/m3 (16) N/A 16.0
 
May 12, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.4 μg/m3 (17) N/A 17.0
 
May 12, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.6 μg/m3 (12) N/A 12.0
 
May 12, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.7 μg/m3 (14) N/A 14.0
 
May 12, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.9 μg/m3 (28) N/A 28.0
 
May 12, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.2 μg/m3 (28) N/A 28.0
 
May 12, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.5 μg/m3 (16) N/A 16.0
 
May 12, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.8 μg/m3 (29) N/A 29.0
 
May 12, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.7 μg/m3 (24) N/A 24.0
 
May 12, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.1 μg/m3 (16) N/A 16.0
 
May 12, 2021, 2 p.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
 
May 12, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.3 μg/m3 (13) N/A 13.0
 
May 12, 2021, noon 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
 
May 12, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.6 μg/m3 (19) N/A 19.0
 
May 12, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.2 μg/m3 (24) N/A 24.0
 
May 12, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.8 μg/m3 (22) N/A 22.0
 
May 12, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.9 μg/m3 (13) N/A 13.0
 
May 12, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.2 μg/m3 (14) N/A 14.0
 
May 12, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.6 μg/m3 (20) N/A 20.0
 
May 12, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 50.3 μg/m3 (47) N/A 47.0
 
May 12, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.2 μg/m3 (23) N/A 23.0
 
May 12, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.3 μg/m3 (38) N/A 38.0
 
May 12, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 54.4 μg/m3 (51) N/A 51.0
 
May 12, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 47.1 μg/m3 (44) N/A 44.0
 
May 12, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 26.7 μg/m3 (25) N/A 25.0
 
May 11, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.8 μg/m3 (38) N/A 38.0
 
May 11, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 63.9 μg/m3 (56) N/A 56.0
 
May 11, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.7 μg/m3 (32) N/A 32.0
 
May 11, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.1 μg/m3 (16) N/A 16.0
 
May 11, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.9 μg/m3 (26) N/A 26.0
 
May 11, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.9 μg/m3 (37) N/A 37.0
 
May 11, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.9 μg/m3 (21) N/A 21.0
 
May 11, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.5 μg/m3 (18) N/A 18.0
 
May 11, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.6 μg/m3 (17) N/A 17.0
 
May 11, 2021, 2 p.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
 
May 11, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.6 μg/m3 (15) N/A 15.0
 
May 11, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 8.8 μg/m3 (9) N/A 9.0
 
May 11, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.4 μg/m3 (16) N/A 16.0
 
May 11, 2021, 10 a.m. 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
 
May 11, 2021, 9 a.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
 
May 11, 2021, 8 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
 
May 11, 2021, 7 a.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
 
May 11, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.7 μg/m3 (13) N/A 13.0
 
May 11, 2021, 5 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
 
May 11, 2021, 4 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
 
May 11, 2021, 3 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
 
May 11, 2021, 2 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
 
May 11, 2021, 1 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
 
May 11, 2021, midnight 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
 
May 10, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.5 μg/m3 (14) N/A 14.0
 
May 10, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.9 μg/m3 (17) N/A 17.0
 
May 10, 2021, 9 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
 
May 10, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.2 μg/m3 (15) N/A 15.0
 
May 10, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.5 μg/m3 (16) N/A 16.0
 
May 10, 2021, 6 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
 
May 10, 2021, 5 p.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
 
May 10, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.9 μg/m3 (13) N/A 13.0
 
May 10, 2021, 3 p.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
 
May 10, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.8 μg/m3 (11) N/A 11.0
 
May 10, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.5 μg/m3 (23) N/A 23.0
 
May 10, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 19.2 μg/m3 (18) N/A 18.0
 
May 10, 2021, 11 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
 
May 10, 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
 
May 10, 2021, 9 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
 
May 10, 2021, 8 a.m. 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
 
May 10, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.3 μg/m3 (13) N/A 13.0
 
May 10, 2021, 6 a.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
 
May 10, 2021, 5 a.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
 
May 10, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.8 μg/m3 (12) N/A 12.0
 
May 10, 2021, 3 a.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
 
May 10, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.9 μg/m3 (14) N/A 14.0
 
May 10, 2021, 1 a.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
 
May 10, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 11.5 μg/m3 (11) N/A 11.0
 
May 9, 2021, 11 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
 
May 9, 2021, 10 p.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
 
May 9, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.7 μg/m3 (12) N/A 12.0
 
May 9, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.9 μg/m3 (19) N/A 19.0
 
May 9, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.2 μg/m3 (21) N/A 21.0
 
May 9, 2021, 6 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
 
May 9, 2021, 5 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
 
May 9, 2021, 4 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
 
May 9, 2021, 3 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
 
May 9, 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
 
May 9, 2021, 1 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
 
May 9, 2021, noon 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
 
May 9, 2021, 11 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
 
May 9, 2021, 10 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
 
May 9, 2021, 9 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
 
May 9, 2021, 8 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
 
May 9, 2021, 7 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
 
May 9, 2021, 6 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
 
May 9, 2021, 5 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
 
May 9, 2021, 4 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
 
May 9, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.8 μg/m3 (12) N/A 12.0
 
May 9, 2021, 2 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
 
May 9, 2021, 1 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
 
May 9, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 10.1 μg/m3 (10) N/A 10.0
 
May 8, 2021, 11 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
 
May 8, 2021, 10 p.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
 
May 8, 2021, 9 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
 
May 8, 2021, 8 p.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
 
May 8, 2021, 7 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
 
May 8, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.3 μg/m3 (20) N/A 20.0
 
May 8, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.1 μg/m3 (30) N/A 30.0
 
May 8, 2021, 4 p.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
 
May 8, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.4 μg/m3 (14) N/A 14.0
 
May 8, 2021, 2 p.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
 
May 8, 2021, 1 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
 
May 8, 2021, noon 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
 
May 8, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.7 μg/m3 (15) N/A 15.0
 
May 8, 2021, 10 a.m. 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
 
May 8, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.5 μg/m3 (19) N/A 19.0
 
May 8, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.3 μg/m3 (25) N/A 25.0
 
May 8, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.2 μg/m3 (19) N/A 19.0
 
May 8, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.9 μg/m3 (28) N/A 28.0
 
May 8, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.9 μg/m3 (24) N/A 24.0
 
May 8, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.3 μg/m3 (22) N/A 22.0
 
May 8, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.7 μg/m3 (13) N/A 13.0
 
May 8, 2021, 2 a.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
 
May 8, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.5 μg/m3 (24) N/A 24.0
 
May 8, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 46.0 μg/m3 (43) N/A 43.0
 
May 7, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 75.7 μg/m3 (62) N/A 62.0
 
May 7, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 51.3 μg/m3 (48) N/A 48.0
 
May 7, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 49.9 μg/m3 (47) N/A 47.0
 
May 7, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 47.8 μg/m3 (45) N/A 45.0
 
May 7, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.1 μg/m3 (33) N/A 33.0
 
May 7, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 49.0 μg/m3 (46) N/A 46.0
 
May 7, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 111.1 μg/m3 (79) N/A 79.0
 
May 7, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.6 μg/m3 (42) N/A 42.0
 
May 7, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.2 μg/m3 (34) N/A 34.0
 
May 7, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.3 μg/m3 (26) N/A 26.0
 
May 7, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.4 μg/m3 (18) N/A 18.0
 
May 7, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) N/A 13.0
 
May 7, 2021, 11 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
 
May 7, 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
 
May 7, 2021, 9 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
 
May 7, 2021, 8 a.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
 
May 7, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) N/A 16.0
 
May 7, 2021, 6 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