ID: 1904

AQSQID: 420859991

Site Name: M.K. Goddard

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

Updated: Jan. 27, 2021, 8:32 p.m.

Location: Sandy Lake (Lake Wilhelm Rd), PA

Reporting: True, Located: True

Current AQI: 33.0

Sandy Lake (Lake Wilhelm Rd) PA, US: 41.4271, -80.1451

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 27, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 27, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
Jan. 27, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
Jan. 27, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 27, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 27, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 27, 2021, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
Jan. 27, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 27, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
Jan. 27, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
Jan. 27, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
Jan. 27, 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
Jan. 27, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 29.0
 
Jan. 27, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 29.0
 
Jan. 27, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 29.0
 
Jan. 27, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 27.0
 
Jan. 27, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 27.0
 
Jan. 27, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 27, 2021, midnight N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A N/A 16.0
 
Jan. 26, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A N/A 13.0
 
Jan. 26, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A N/A 10.0
 
Jan. 26, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A N/A 10.0
 
Jan. 26, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A N/A 12.0
 
Jan. 26, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A N/A 11.0
 
Jan. 26, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A N/A 13.0
 
Jan. 26, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 17.0
 
Jan. 26, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A N/A 20.0
 
Jan. 26, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 26, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 26, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 26, 2021, noon N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 26, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A N/A 24.0
 
Jan. 26, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 26, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 26, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 26, 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
Jan. 26, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 27.0
 
Jan. 26, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 28.0
 
Jan. 26, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A N/A 30.0
 
Jan. 26, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 26, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 26, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 26, 2021, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
Jan. 25, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
Jan. 25, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 28.0
 
Jan. 25, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 28.0
 
Jan. 25, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
Jan. 25, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
Jan. 25, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
Jan. 25, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
Jan. 25, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
Jan. 25, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 29.0
 
Jan. 25, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 26.0
 
Jan. 25, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A N/A 23.0
 
Jan. 25, 2021, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A N/A 21.0
 
Jan. 25, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A N/A 21.0
 
Jan. 25, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A N/A 24.0
 
Jan. 25, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 25, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 27.0
 
Jan. 25, 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
Jan. 25, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 28.0
 
Jan. 25, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A N/A 30.0
 
Jan. 25, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
Jan. 25, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
Jan. 25, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
Jan. 25, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
Jan. 25, 2021, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 24, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
Jan. 24, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 24, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
Jan. 24, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
Jan. 24, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
Jan. 24, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
Jan. 24, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
Jan. 24, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
Jan. 24, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 24, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 24, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A N/A 24.0
 
Jan. 24, 2021, noon N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 24, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 26.0
 
Jan. 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 26.0
 
Jan. 24, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 29.0
 
Jan. 24, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A N/A 30.0
 
Jan. 24, 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
Jan. 24, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A N/A 30.0
 
Jan. 24, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
Jan. 24, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
Jan. 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
Jan. 24, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
Jan. 24, 2021, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
Jan. 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
Jan. 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
Jan. 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
Jan. 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
Jan. 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
Jan. 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 23, 2021, noon N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
Jan. 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
Jan. 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
Jan. 23, 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
Jan. 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
Jan. 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
Jan. 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
Jan. 23, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 29.0
 
Jan. 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 28.0
 
Jan. 23, 2021, midnight N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 27.0
 
Jan. 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 27.0
 
Jan. 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 27.0
 
Jan. 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 26.0
 
Jan. 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 27.0
 
Jan. 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 26.0
 
Jan. 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 29.0
 
Jan. 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 28.0
 
Jan. 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 26.0
 
Jan. 22, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 22, 2021, noon N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 26.0
 
Jan. 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 27.0
 
Jan. 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 28.0
 
Jan. 22, 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
Jan. 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
Jan. 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
Jan. 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
Jan. 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 29.0
 
Jan. 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 28.0
 
Jan. 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 29.0
 
Jan. 22, 2021, midnight N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 29.0
 
Jan. 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A N/A 30.0
 
Jan. 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
Jan. 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
Jan. 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
Jan. 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 29.0
 
Jan. 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 28.0
 
Jan. 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 27.0
 
Jan. 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A N/A 24.0
 
Jan. 21, 2021, noon N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A N/A 23.0
 
Jan. 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 21, 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
Jan. 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A N/A 24.0
 
Jan. 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 26.0
 
Jan. 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 27.0
 
Jan. 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 26.0
 
Jan. 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 28.0
 
Jan. 21, 2021, midnight N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 28.0
 
Jan. 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 27.0
 
Jan. 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 28.0
 
Jan. 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 29.0
 
Jan. 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A N/A 30.0
 
Jan. 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0