ID: 2037

AQSQID: 550350014

Site Name: Eau Claire

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

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

Location: Eau Claire (US Route 53), WI

Reporting: True, Located: True

Current AQI: 32.0

Eau Claire (US Route 53) WI, US: 44.761398, -91.413002

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 6, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.8 μg/m3 (15) 7.5 μg/m3 (32) 32.0
 
March 6, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.3 μg/m3 (17) 11.4 μg/m3 (48) 48.0
 
March 6, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.3 μg/m3 (15) 11.4 μg/m3 (48) 48.0
 
March 6, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 15.8 μg/m3 (15) 12.1 μg/m3 (51) 51.0
 
March 6, 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) 10.6 μg/m3 (45) 45.0
 
March 6, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.1 μg/m3 (14) 10.1 μg/m3 (43) 43.0
 
March 6, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.7 μg/m3 (14) 10.7 μg/m3 (45) 45.0
 
March 6, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.8 μg/m3 (11) 8.4 μg/m3 (36) 36.0
 
March 6, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.6 μg/m3 (12) 9.6 μg/m3 (40) 40.0
 
March 6, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.4 μg/m3 (15) 10.8 μg/m3 (46) 46.0
 
March 6, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.5 μg/m3 (16) 11.8 μg/m3 (50) 50.0
 
March 6, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.8 μg/m3 (15) 11.4 μg/m3 (48) 48.0
 
March 6, 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) 9.6 μg/m3 (40) 40.0
 
March 6, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.7 μg/m3 (17) 10.6 μg/m3 (45) 45.0
 
March 6, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.9 μg/m3 (17) 9.9 μg/m3 (42) 42.0
 
March 6, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 15.7 μg/m3 (15) 8.6 μg/m3 (36) 36.0
 
March 5, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.8 μg/m3 (14) 8.6 μg/m3 (36) 36.0
 
March 5, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (12) 8.2 μg/m3 (35) 35.0
 
March 5, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.3 μg/m3 (12) 8.3 μg/m3 (35) 35.0
 
March 5, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.5 μg/m3 (14) 9.5 μg/m3 (40) 40.0
 
March 5, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.7 μg/m3 (14) 8.9 μg/m3 (38) 38.0
 
March 5, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.3 μg/m3 (16) 10.1 μg/m3 (43) 43.0
 
March 5, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.1 μg/m3 (17) 11.0 μg/m3 (46) 46.0
 
March 5, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.4 μg/m3 (16) 10.9 μg/m3 (46) 46.0
 
March 5, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.4 μg/m3 (18) 12.3 μg/m3 (52) 52.0
 
March 5, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.5 μg/m3 (19) 12.5 μg/m3 (52) 52.0
 
March 5, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.3 μg/m3 (20) 13.1 μg/m3 (54) 54.0
 
March 5, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 18.4 μg/m3 (18) 13.4 μg/m3 (54) 54.0
 
March 5, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.4 μg/m3 (18) 14.2 μg/m3 (56) 56.0
 
March 5, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 13.3 μg/m3 (54) 54.0
 
March 5, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.2 μg/m3 (15) 11.7 μg/m3 (49) 49.0
 
March 5, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.2 μg/m3 (15) 10.9 μg/m3 (46) 46.0
 
March 5, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.4 μg/m3 (14) 10.1 μg/m3 (43) 43.0
 
March 5, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.6 μg/m3 (13) 9.5 μg/m3 (40) 40.0
 
March 5, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.9 μg/m3 (13) 9.5 μg/m3 (40) 40.0
 
March 5, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.1 μg/m3 (15) 10.6 μg/m3 (45) 45.0
 
March 5, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.2 μg/m3 (11) 6.9 μg/m3 (29) 29.0
 
March 5, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.5 μg/m3 (11) 6.4 μg/m3 (27) 27.0
 
March 5, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.1 μg/m3 (13) 5.7 μg/m3 (24) 24.0
 
March 5, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (10) 4.9 μg/m3 (21) 21.0
 
March 4, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.6 μg/m3 (8) 4.6 μg/m3 (20) 20.0
 
March 4, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (9) 4.4 μg/m3 (19) 19.0
 
March 4, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.3 μg/m3 (8) 5.1 μg/m3 (22) 22.0
 
March 4, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 5.7 μg/m3 (24) 24.0
 
March 4, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.9 μg/m3 (11) 6.4 μg/m3 (27) 27.0
 
March 4, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 6.3 μg/m3 (27) 27.0
 
March 4, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (10) 7.1 μg/m3 (30) 30.0
 
March 4, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.9 μg/m3 (11) 7.4 μg/m3 (31) 31.0
 
March 4, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.8 μg/m3 (10) 7.9 μg/m3 (33) 33.0
 
March 4, 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) 7.4 μg/m3 (31) 31.0
 
March 4, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (10) 6.7 μg/m3 (28) 28.0
 
March 4, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
March 4, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.2 μg/m3 (8) 5.8 μg/m3 (25) 25.0
 
March 4, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.4 μg/m3 (8) 5.4 μg/m3 (23) 23.0
 
March 4, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.6 μg/m3 (8) 5.2 μg/m3 (22) 22.0
 
March 4, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.4 μg/m3 (8) 5.7 μg/m3 (24) 24.0
 
March 4, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.4 μg/m3 (11) 7.9 μg/m3 (33) 33.0
 
March 4, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.3 μg/m3 (12) 8.6 μg/m3 (36) 36.0
 
March 4, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.6 μg/m3 (12) 8.6 μg/m3 (36) 36.0
 
March 4, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.6 μg/m3 (13) 8.8 μg/m3 (37) 37.0
 
March 4, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.9 μg/m3 (15) 8.7 μg/m3 (37) 37.0
 
March 4, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.5 μg/m3 (13) 7.1 μg/m3 (30) 30.0
 
March 4, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.1 μg/m3 (14) 6.4 μg/m3 (27) 27.0
 
March 4, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
March 3, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.4 μg/m3 (9) 4.6 μg/m3 (20) 20.0
 
March 3, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.3 μg/m3 (9) 5.6 μg/m3 (24) 24.0
 
March 3, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.8 μg/m3 (10) 5.4 μg/m3 (23) 23.0
 
March 3, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.8 μg/m3 (10) 6.6 μg/m3 (28) 28.0
 
March 3, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.1 μg/m3 (10) 6.8 μg/m3 (29) 29.0
 
March 3, 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) 9.0 μg/m3 (38) 38.0
 
March 3, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.9 μg/m3 (18) 11.8 μg/m3 (50) 50.0
 
March 3, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.8 μg/m3 (16) 10.5 μg/m3 (44) 44.0
 
March 3, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.6 μg/m3 (16) 12.0 μg/m3 (50) 50.0
 
March 3, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.8 μg/m3 (21) 16.8 μg/m3 (61) 61.0
 
March 3, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.1 μg/m3 (21) 17.4 μg/m3 (63) 63.0
 
March 3, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 22.5 μg/m3 (21) 17.5 μg/m3 (63) 63.0
 
March 3, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.8 μg/m3 (18) 14.6 μg/m3 (57) 57.0
 
March 3, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.3 μg/m3 (19) 15.1 μg/m3 (58) 58.0
 
March 3, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.8 μg/m3 (19) 14.8 μg/m3 (57) 57.0
 
March 3, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.1 μg/m3 (19) 14.2 μg/m3 (56) 56.0
 
March 3, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.9 μg/m3 (20) 13.7 μg/m3 (55) 55.0
 
March 3, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 14.1 μg/m3 (56) 56.0
 
March 3, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) 13.4 μg/m3 (54) 54.0
 
March 3, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.3 μg/m3 (19) 12.8 μg/m3 (53) 53.0
 
March 3, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.7 μg/m3 (21) 12.4 μg/m3 (52) 52.0
 
March 3, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 12.0 μg/m3 (50) 50.0
 
March 3, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.4 μg/m3 (20) 12.1 μg/m3 (51) 51.0
 
March 3, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 22.1 μg/m3 (21) 12.6 μg/m3 (53) 53.0
 
March 2, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.2 μg/m3 (21) 11.9 μg/m3 (50) 50.0
 
March 2, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.4 μg/m3 (22) 11.8 μg/m3 (50) 50.0
 
March 2, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.5 μg/m3 (20) 10.9 μg/m3 (46) 46.0
 
March 2, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.4 μg/m3 (22) 11.0 μg/m3 (46) 46.0
 
March 2, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.4 μg/m3 (21) 10.7 μg/m3 (45) 45.0
 
March 2, 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) 10.6 μg/m3 (45) 45.0
 
March 2, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.7 μg/m3 (21) 10.7 μg/m3 (45) 45.0
 
March 2, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.1 μg/m3 (18) 9.8 μg/m3 (41) 41.0
 
March 2, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.8 μg/m3 (16) 8.5 μg/m3 (36) 36.0
 
March 2, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.6 μg/m3 (17) 9.0 μg/m3 (38) 38.0
 
March 2, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.2 μg/m3 (15) 9.3 μg/m3 (39) 39.0
 
March 2, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 14.4 μg/m3 (14) 9.2 μg/m3 (39) 39.0
 
March 2, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.7 μg/m3 (12) 8.1 μg/m3 (34) 34.0
 
March 2, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (12) 7.6 μg/m3 (32) 32.0
 
March 2, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.7 μg/m3 (12) 7.7 μg/m3 (33) 33.0
 
March 2, 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) 8.1 μg/m3 (34) 34.0
 
March 2, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.8 μg/m3 (13) 9.2 μg/m3 (39) 39.0
 
March 2, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.4 μg/m3 (13) 8.5 μg/m3 (36) 36.0
 
March 2, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.4 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
March 2, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (12) 8.8 μg/m3 (37) 37.0
 
March 2, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.5 μg/m3 (13) 9.2 μg/m3 (39) 39.0
 
March 2, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.8 μg/m3 (11) 6.8 μg/m3 (29) 29.0
 
March 2, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.8 μg/m3 (12) 5.8 μg/m3 (25) 25.0
 
March 2, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 16.8 μg/m3 (16) 6.1 μg/m3 (26) 26.0
 
March 1, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.9 μg/m3 (12) 5.5 μg/m3 (23) 23.0
 
March 1, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.5 μg/m3 (10) 5.2 μg/m3 (22) 22.0
 
March 1, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.1 μg/m3 (10) 5.1 μg/m3 (22) 22.0
 
March 1, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.5 μg/m3 (11) 5.8 μg/m3 (25) 25.0
 
March 1, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.1 μg/m3 (11) 5.9 μg/m3 (25) 25.0
 
March 1, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 6.2 μg/m3 (26) 26.0
 
March 1, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.6 μg/m3 (13) 5.7 μg/m3 (24) 24.0
 
March 1, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.2 μg/m3 (13) 5.2 μg/m3 (22) 22.0
 
March 1, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 5.5 μg/m3 (23) 23.0
 
March 1, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.9 μg/m3 (13) 5.5 μg/m3 (23) 23.0
 
March 1, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (9) 4.9 μg/m3 (21) 21.0
 
March 1, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 7.1 μg/m3 (7) 4.4 μg/m3 (19) 19.0
 
March 1, 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) 4.6 μg/m3 (20) 20.0
 
March 1, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.6 μg/m3 (8) 4.7 μg/m3 (20) 20.0
 
March 1, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (10) 5.3 μg/m3 (23) 23.0
 
March 1, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.6 μg/m3 (9) 5.3 μg/m3 (23) 23.0
 
March 1, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.5 μg/m3 (8) 5.1 μg/m3 (22) 22.0
 
March 1, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.5 μg/m3 (8) 5.4 μg/m3 (23) 23.0
 
March 1, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.7 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
March 1, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.1 μg/m3 (8) 4.6 μg/m3 (20) 20.0
 
March 1, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.3 μg/m3 (8) 5.2 μg/m3 (22) 22.0
 
March 1, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 5.9 μg/m3 (25) 25.0
 
March 1, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.8 μg/m3 (9) 5.5 μg/m3 (23) 23.0
 
March 1, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 9.6 μg/m3 (9) 4.7 μg/m3 (20) 20.0
 
Feb. 28, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 5.5 μg/m3 (23) 23.0
 
Feb. 28, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (10) 6.7 μg/m3 (28) 28.0
 
Feb. 28, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.9 μg/m3 (9) 6.1 μg/m3 (26) 26.0
 
Feb. 28, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.4 μg/m3 (6) 4.5 μg/m3 (19) 19.0
 
Feb. 28, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 5.1 μg/m3 (22) 22.0
 
Feb. 28, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (9) 6.3 μg/m3 (27) 27.0
 
Feb. 28, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (10) 8.2 μg/m3 (35) 35.0
 
Feb. 28, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 16.1 μg/m3 (60) 60.0
 
Feb. 28, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.5 μg/m3 (25) 23.4 μg/m3 (75) 75.0
 
Feb. 28, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.1 μg/m3 (27) 24.9 μg/m3 (78) 78.0
 
Feb. 28, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.3 μg/m3 (28) 24.2 μg/m3 (77) 77.0
 
Feb. 28, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 27.5 μg/m3 (26) 21.1 μg/m3 (70) 70.0
 
Feb. 28, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.1 μg/m3 (25) 18.3 μg/m3 (65) 65.0
 
Feb. 28, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) 16.4 μg/m3 (61) 61.0
 
Feb. 28, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.6 μg/m3 (23) 17.5 μg/m3 (63) 63.0
 
Feb. 28, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.5 μg/m3 (20) 15.9 μg/m3 (59) 59.0
 
Feb. 28, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.8 μg/m3 (20) 15.0 μg/m3 (58) 58.0
 
Feb. 28, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.5 μg/m3 (19) 14.3 μg/m3 (56) 56.0
 
Feb. 28, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.9 μg/m3 (18) 13.9 μg/m3 (55) 55.0
 
Feb. 28, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.6 μg/m3 (17) 12.4 μg/m3 (52) 52.0
 
Feb. 28, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.7 μg/m3 (17) 11.5 μg/m3 (48) 48.0
 
Feb. 28, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.8 μg/m3 (18) 11.7 μg/m3 (49) 49.0
 
Feb. 28, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.4 μg/m3 (20) 12.6 μg/m3 (53) 53.0
 
Feb. 28, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 24.1 μg/m3 (23) 11.4 μg/m3 (48) 48.0
 
Feb. 27, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.4 μg/m3 (15) 9.5 μg/m3 (40) 40.0
 
Feb. 27, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 9.7 μg/m3 (41) 41.0
 
Feb. 27, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.2 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
Feb. 27, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.2 μg/m3 (16) 9.4 μg/m3 (40) 40.0
 
Feb. 27, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.7 μg/m3 (15) 9.2 μg/m3 (39) 39.0
 
Feb. 27, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.7 μg/m3 (14) 9.3 μg/m3 (39) 39.0
 
Feb. 27, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.3 μg/m3 (17) 11.3 μg/m3 (48) 48.0
 
Feb. 27, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.7 μg/m3 (21) 13.1 μg/m3 (54) 54.0