ID: 507

AQSQID: 261470005

Site Name: Port Huron

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

Updated: Jan. 19, 2021, 8:31 p.m.

Location: Port Huron (Dove St), MI

Reporting: True, Located: True

Current AQI: 33.0

Port Huron (Dove St) MI, US: 42.9533, -82.4564

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 12, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 19.6 μg/m3 (67) 67.0
 
Jan. 12, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 19.4 μg/m3 (67) 67.0
 
Jan. 12, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 19.5 μg/m3 (67) 67.0
 
Jan. 12, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 19.4 μg/m3 (67) 67.0
 
Jan. 12, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 20.3 μg/m3 (69) 69.0
 
Jan. 12, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 20.6 μg/m3 (69) 69.0
 
Jan. 12, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 20.0 μg/m3 (68) 68.0
 
Jan. 12, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 19.2 μg/m3 (66) 66.0
 
Jan. 12, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 19.5 μg/m3 (67) 67.0
 
Jan. 12, 2021, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 17.3 μg/m3 (62) 62.0
 
Jan. 12, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 16.3 μg/m3 (60) 60.0
 
Jan. 12, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 16.4 μg/m3 (61) 61.0
 
Jan. 12, 2021, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 16.8 μg/m3 (61) 61.0
 
Jan. 12, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.2 μg/m3 (54) 54.0
 
Jan. 12, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 16.5 μg/m3 (61) 61.0
 
Jan. 12, 2021, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 15.5 μg/m3 (59) 59.0
 
Jan. 12, 2021, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 14.1 μg/m3 (56) 56.0
 
Jan. 12, 2021, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 17.1 μg/m3 (62) 62.0
 
Jan. 12, 2021, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 20.5 μg/m3 (69) 69.0
 
Jan. 12, 2021, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 20.9 μg/m3 (70) 70.0
 
Jan. 11, 2021, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 21.8 μg/m3 (72) 72.0
 
Jan. 11, 2021, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 20.2 μg/m3 (69) 69.0
 
Jan. 11, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 19.5 μg/m3 (67) 67.0
 
Jan. 11, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 21.6 μg/m3 (71) 71.0
 
Jan. 11, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 19.3 μg/m3 (67) 67.0
 
Jan. 11, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 17.9 μg/m3 (64) 64.0
 
Jan. 11, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 17.1 μg/m3 (62) 62.0
 
Jan. 11, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 18.6 μg/m3 (65) 65.0
 
Jan. 11, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 18.3 μg/m3 (65) 65.0
 
Jan. 11, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 23.9 μg/m3 (76) 76.0
 
Jan. 11, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 30.8 μg/m3 (91) 91.0
 
Jan. 11, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 32.1 μg/m3 (94) 94.0
 
Jan. 11, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 33.2 μg/m3 (96) 96.0
 
Jan. 11, 2021, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 35.7 μg/m3 (102) 102.0
 
Jan. 11, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 35.9 μg/m3 (102) 102.0
 
Jan. 11, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 36.2 μg/m3 (103) 103.0
 
Jan. 11, 2021, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 33.8 μg/m3 (97) 97.0
 
Jan. 11, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 32.1 μg/m3 (94) 94.0
 
Jan. 11, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 29.2 μg/m3 (87) 87.0
 
Jan. 11, 2021, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 27.4 μg/m3 (84) 84.0
 
Jan. 11, 2021, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 23.0 μg/m3 (74) 74.0
 
Jan. 11, 2021, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 23.5 μg/m3 (75) 75.0
 
Jan. 11, 2021, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 27.0 μg/m3 (83) 83.0
 
Jan. 11, 2021, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 21.8 μg/m3 (72) 72.0
 
Jan. 10, 2021, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 18.0 μg/m3 (64) 64.0
 
Jan. 10, 2021, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 14.5 μg/m3 (57) 57.0
 
Jan. 10, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 14.0 μg/m3 (55) 55.0
 
Jan. 10, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 12.5 μg/m3 (52) 52.0
 
Jan. 10, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 12.6 μg/m3 (53) 53.0
 
Jan. 10, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 11.6 μg/m3 (49) 49.0
 
Jan. 10, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 11.5 μg/m3 (48) 48.0
 
Jan. 10, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 12.2 μg/m3 (52) 52.0
 
Jan. 10, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 13.8 μg/m3 (55) 55.0
 
Jan. 10, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 15.1 μg/m3 (58) 58.0
 
Jan. 10, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 15.7 μg/m3 (59) 59.0
 
Jan. 10, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 20.1 μg/m3 (68) 68.0
 
Jan. 10, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 19.3 μg/m3 (67) 67.0
 
Jan. 10, 2021, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 16.8 μg/m3 (61) 61.0
 
Jan. 10, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 14.4 μg/m3 (56) 56.0
 
Jan. 10, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 13.2 μg/m3 (54) 54.0
 
Jan. 10, 2021, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 11.7 μg/m3 (49) 49.0
 
Jan. 10, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.8 μg/m3 (46) 46.0
 
Jan. 10, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 10.1 μg/m3 (43) 43.0
 
Jan. 10, 2021, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 10, 2021, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 10.9 μg/m3 (46) 46.0
 
Jan. 10, 2021, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 10, 2021, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 9.2 μg/m3 (39) 39.0
 
Jan. 10, 2021, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 8.7 μg/m3 (37) 37.0
 
Jan. 9, 2021, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 7.2 μg/m3 (31) 31.0
 
Jan. 9, 2021, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.9 μg/m3 (25) 25.0
 
Jan. 9, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 4.4 μg/m3 (19) 19.0
 
Jan. 9, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 2.3 μg/m3 (10) 10.0
 
Jan. 9, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 2.4 μg/m3 (10) 10.0
 
Jan. 9, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 2.1 μg/m3 (9) 9.0
 
Jan. 9, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 9, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 2.4 μg/m3 (10) 10.0
 
Jan. 9, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 3.9 μg/m3 (17) 17.0
 
Jan. 9, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 4.4 μg/m3 (19) 19.0
 
Jan. 9, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 6.2 μg/m3 (26) 26.0
 
Jan. 9, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 6.8 μg/m3 (29) 29.0
 
Jan. 9, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 9, 2021, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.6 μg/m3 (24) 24.0
 
Jan. 9, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.5 μg/m3 (23) 23.0
 
Jan. 9, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 3.9 μg/m3 (17) 17.0
 
Jan. 9, 2021, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 4.3 μg/m3 (18) 18.0
 
Jan. 9, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.4 μg/m3 (15) 15.0
 
Jan. 9, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 3.4 μg/m3 (15) 15.0
 
Jan. 9, 2021, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 2.5 μg/m3 (11) 11.0
 
Jan. 9, 2021, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 3.5 μg/m3 (15) 15.0
 
Jan. 9, 2021, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.5 μg/m3 (23) 23.0
 
Jan. 9, 2021, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 3.9 μg/m3 (17) 17.0
 
Jan. 9, 2021, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 3.5 μg/m3 (15) 15.0
 
Jan. 8, 2021, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
Jan. 8, 2021, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 2.2 μg/m3 (10) 10.0
 
Jan. 8, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 1.6 μg/m3 (7) 7.0
 
Jan. 8, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 1.9 μg/m3 (8) 8.0
 
Jan. 8, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 3.9 μg/m3 (17) 17.0
 
Jan. 8, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 2.5 μg/m3 (11) 11.0
 
Jan. 8, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 8, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 2.7 μg/m3 (12) 12.0
 
Jan. 8, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 3.5 μg/m3 (15) 15.0
 
Jan. 8, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 3.4 μg/m3 (15) 15.0
 
Jan. 8, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 2.1 μg/m3 (9) 9.0
 
Jan. 8, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 3.2 μg/m3 (14) 14.0
 
Jan. 8, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 3.2 μg/m3 (14) 14.0
 
Jan. 8, 2021, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 3.2 μg/m3 (14) 14.0
 
Jan. 8, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 3.3 μg/m3 (14) 14.0
 
Jan. 8, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 8, 2021, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 2.9 μg/m3 (13) 13.0
 
Jan. 8, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.2 μg/m3 (14) 14.0
 
Jan. 8, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 3.2 μg/m3 (14) 14.0
 
Jan. 8, 2021, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 2.9 μg/m3 (13) 13.0
 
Jan. 8, 2021, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 3.1 μg/m3 (13) 13.0
 
Jan. 8, 2021, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 4.2 μg/m3 (18) 18.0
 
Jan. 8, 2021, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 4.4 μg/m3 (19) 19.0
 
Jan. 8, 2021, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 7, 2021, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 3.6 μg/m3 (16) 16.0
 
Jan. 7, 2021, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 2.3 μg/m3 (10) 10.0
 
Jan. 7, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 3.5 μg/m3 (15) 15.0
 
Jan. 7, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 4.1 μg/m3 (18) 18.0
 
Jan. 7, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 2.1 μg/m3 (9) 9.0
 
Jan. 7, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 1.7 μg/m3 (8) 8.0
 
Jan. 7, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 1.6 μg/m3 (7) 7.0
 
Jan. 7, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 2.5 μg/m3 (11) 11.0
 
Jan. 7, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 2.8 μg/m3 (12) 12.0
 
Jan. 7, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.5 μg/m3 (23) 23.0
 
Jan. 7, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 1.4 μg/m3 (6) 6.0
 
Jan. 7, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 1.7 μg/m3 (8) 8.0
 
Jan. 7, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 2.1 μg/m3 (9) 9.0
 
Jan. 7, 2021, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 1.9 μg/m3 (8) 8.0
 
Jan. 7, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 2.1 μg/m3 (9) 9.0
 
Jan. 7, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Jan. 7, 2021, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 1.9 μg/m3 (8) 8.0
 
Jan. 7, 2021, 6 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
 
Jan. 7, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 2.7 μg/m3 (12) 12.0
 
Jan. 7, 2021, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.3 μg/m3 (23) 23.0
 
Jan. 7, 2021, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 8.4 μg/m3 (36) 36.0
 
Jan. 7, 2021, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 9.9 μg/m3 (42) 42.0
 
Jan. 7, 2021, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 7, 2021, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 10.4 μg/m3 (44) 44.0
 
Jan. 6, 2021, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 10.8 μg/m3 (46) 46.0
 
Jan. 6, 2021, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 8.1 μg/m3 (34) 34.0
 
Jan. 6, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 7.1 μg/m3 (30) 30.0
 
Jan. 6, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 6.3 μg/m3 (27) 27.0
 
Jan. 6, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 7.3 μg/m3 (31) 31.0
 
Jan. 6, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 7.5 μg/m3 (32) 32.0
 
Jan. 6, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 8.3 μg/m3 (35) 35.0
 
Jan. 6, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 10.2 μg/m3 (43) 43.0
 
Jan. 6, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 13.6 μg/m3 (55) 55.0
 
Jan. 6, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 13.1 μg/m3 (54) 54.0
 
Jan. 6, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 13.6 μg/m3 (55) 55.0
 
Jan. 6, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 16.0 μg/m3 (60) 60.0
 
Jan. 6, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 18.5 μg/m3 (65) 65.0
 
Jan. 6, 2021, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 20.4 μg/m3 (69) 69.0
 
Jan. 6, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 21.1 μg/m3 (70) 70.0
 
Jan. 6, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 20.4 μg/m3 (69) 69.0
 
Jan. 6, 2021, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 19.7 μg/m3 (67) 67.0
 
Jan. 6, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (62) 62.0
 
Jan. 6, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 15.2 μg/m3 (58) 58.0
 
Jan. 6, 2021, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 15.5 μg/m3 (59) 59.0
 
Jan. 6, 2021, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 15.4 μg/m3 (58) 58.0
 
Jan. 6, 2021, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 15.8 μg/m3 (59) 59.0
 
Jan. 6, 2021, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 13.9 μg/m3 (55) 55.0
 
Jan. 6, 2021, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 12.8 μg/m3 (53) 53.0
 
Jan. 5, 2021, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 13.6 μg/m3 (55) 55.0
 
Jan. 5, 2021, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 14.8 μg/m3 (57) 57.0
 
Jan. 5, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 5, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 8.6 μg/m3 (36) 36.0