AQSQID: 210610501

Site Name: Mammoth Cave Np

Location: Park City (Alfred Cook Rd), KY

Reporting: True, Located: True

Current AQI: 28.0

Park City (Alfred Cook Rd) KY, US: 37.1314, -86.1481

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 19, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 6.6 μg/m3 (28) 28.0
 
Jan. 19, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 6.2 μg/m3 (26) 26.0
 
Jan. 19, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 7.3 μg/m3 (30) 30.0
 
Jan. 19, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 8.1 μg/m3 (34) 34.0
 
Jan. 19, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 7.6 μg/m3 (32) 32.0
 
Jan. 19, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 6.9 μg/m3 (29) 29.0
 
Jan. 19, 2020, noon N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 5.7 μg/m3 (24) 24.0
 
Jan. 19, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 5.8 μg/m3 (24) 25.0
 
Jan. 19, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 4.9 μg/m3 (20) 25.0
 
Jan. 19, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 4.6 μg/m3 (19) 25.0
 
Jan. 19, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 4.9 μg/m3 (20) 24.0
 
Jan. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 5.1 μg/m3 (21) 24.0
 
Jan. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 6.3 μg/m3 (26) 26.0
 
Jan. 19, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 7.7 μg/m3 (32) 32.0
 
Jan. 19, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 5.9 μg/m3 (25) 25.0
 
Jan. 19, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 4.7 μg/m3 (20) 23.0
 
Jan. 19, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 4.8 μg/m3 (20) 20.0
 
Jan. 19, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 4.6 μg/m3 (19) 19.0
 
Jan. 19, 2020, midnight N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 5.4 μg/m3 (23) 23.0
 
Jan. 18, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 5.5 μg/m3 (23) 23.0
 
Jan. 18, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 4.4 μg/m3 (18) 23.0
 
Jan. 18, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 4.6 μg/m3 (19) 22.0
 
Jan. 18, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 3.8 μg/m3 (16) 23.0
 
Jan. 18, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 3.6 μg/m3 (15) 24.0
 
Jan. 18, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 4.3 μg/m3 (18) 25.0
 
Jan. 18, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 8.3 μg/m3 (35) 35.0
 
Jan. 18, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 7.2 μg/m3 (30) 30.0
 
Jan. 18, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 7.6 μg/m3 (32) 32.0
 
Jan. 18, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 7.2 μg/m3 (30) 30.0
 
Jan. 18, 2020, noon N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 8.2 μg/m3 (34) 34.0
 
Jan. 18, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 6.7 μg/m3 (28) 28.0
 
Jan. 18, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 5.0 μg/m3 (21) 28.0
 
Jan. 18, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 3.7 μg/m3 (15) 28.0
 
Jan. 18, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 3.5 μg/m3 (15) 27.0
 
Jan. 18, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 3.5 μg/m3 (15) 26.0
 
Jan. 18, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 3.4 μg/m3 (14) 25.0
 
Jan. 18, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 2.9 μg/m3 (12) 22.0
 
Jan. 18, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 3.3 μg/m3 (14) 21.0
 
Jan. 18, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 2.6 μg/m3 (11) 20.0
 
Jan. 18, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 3.3 μg/m3 (14) 20.0
 
Jan. 18, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 3.3 μg/m3 (14) 19.0
 
Jan. 18, 2020, midnight N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 4.9 μg/m3 (20) 20.0
 
Jan. 17, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 5.2 μg/m3 (22) 22.0
 
Jan. 17, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 5.1 μg/m3 (21) 21.0
 
Jan. 17, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 4.9 μg/m3 (20) 20.0
 
Jan. 17, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 4.8 μg/m3 (20) 20.0
 
Jan. 17, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 3.6 μg/m3 (15) 19.0
 
Jan. 17, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 4.3 μg/m3 (18) 18.0
 
Jan. 17, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 4.8 μg/m3 (20) 20.0
 
Jan. 17, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 6.9 μg/m3 (29) 29.0
 
Jan. 17, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 7.5 μg/m3 (31) 31.0
 
Jan. 17, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 9.4 μg/m3 (39) 39.0
 
Jan. 17, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 8.6 μg/m3 (36) 36.0
 
Jan. 17, 2020, noon N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 8.8 μg/m3 (37) 37.0
 
Jan. 17, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 6.8 μg/m3 (28) 28.0
 
Jan. 17, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 4.9 μg/m3 (20) 20.0
 
Jan. 17, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 5.8 μg/m3 (24) 24.0
 
Jan. 17, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 6.9 μg/m3 (29) 29.0
 
Jan. 17, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 6.5 μg/m3 (27) 27.0
 
Jan. 17, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 5.2 μg/m3 (22) 22.0
 
Jan. 17, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 6.2 μg/m3 (26) 26.0
 
Jan. 17, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 7.7 μg/m3 (32) 32.0
 
Jan. 17, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 8.6 μg/m3 (36) 36.0
 
Jan. 17, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2020, midnight N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 6.7 μg/m3 (28) 28.0
 
Jan. 16, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 6.4 μg/m3 (27) 27.0
 
Jan. 16, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 6.4 μg/m3 (27) 27.0
 
Jan. 16, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 5.2 μg/m3 (22) 27.0
 
Jan. 16, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 6.6 μg/m3 (28) 28.0
 
Jan. 16, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 5.5 μg/m3 (23) 23.0
 
Jan. 16, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 4.6 μg/m3 (19) 22.0
 
Jan. 16, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 4.8 μg/m3 (20) 20.0
 
Jan. 16, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 5.9 μg/m3 (25) 25.0
 
Jan. 16, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 8.6 μg/m3 (36) 36.0
 
Jan. 16, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 8.6 μg/m3 (36) 36.0
 
Jan. 16, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 10.7 μg/m3 (45) 45.0
 
Jan. 16, 2020, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 10.1 μg/m3 (42) 42.0
 
Jan. 16, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 10.3 μg/m3 (43) 43.0
 
Jan. 16, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 10.3 μg/m3 (43) 43.0
 
Jan. 16, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 11.2 μg/m3 (47) 47.0
 
Jan. 16, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 10.9 μg/m3 (45) 45.0
 
Jan. 16, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 10.3 μg/m3 (43) 43.0
 
Jan. 16, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 9.8 μg/m3 (41) 41.0
 
Jan. 16, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 9.4 μg/m3 (39) 39.0
 
Jan. 16, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 10.3 μg/m3 (43) 43.0
 
Jan. 16, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2020, midnight N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 8.4 μg/m3 (35) 35.0
 
Jan. 15, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 8.9 μg/m3 (37) 37.0
 
Jan. 15, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 6.6 μg/m3 (28) 28.0
 
Jan. 15, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 6.9 μg/m3 (29) 29.0
 
Jan. 15, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 4.5 μg/m3 (19) 19.0
 
Jan. 15, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 2.5 μg/m3 (10) 17.0
 
Jan. 15, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 2.5 μg/m3 (10) 14.0
 
Jan. 15, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 4.3 μg/m3 (18) 18.0
 
Jan. 15, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 5.8 μg/m3 (24) 24.0
 
Jan. 15, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 6.1 μg/m3 (25) 25.0
 
Jan. 15, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 5.2 μg/m3 (22) 22.0
 
Jan. 15, 2020, noon N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 5.1 μg/m3 (21) 21.0
 
Jan. 15, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 4.7 μg/m3 (20) 20.0
 
Jan. 15, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 4.9 μg/m3 (20) 20.0
 
Jan. 15, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 4.7 μg/m3 (20) 20.0
 
Jan. 14, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 9.9 μg/m3 (41) 41.0
 
Jan. 14, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 7.7 μg/m3 (32) 32.0
 
Jan. 14, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 8.4 μg/m3 (35) 35.0
 
Jan. 14, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 2.7 μg/m3 (11) 21.0
 
Jan. 14, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 5.8 μg/m3 (24) 24.0
 
Jan. 14, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 7.8 μg/m3 (32) 32.0
 
Jan. 14, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 8.4 μg/m3 (35) 35.0
 
Jan. 14, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 6.8 μg/m3 (28) 28.0
 
Jan. 14, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 7.6 μg/m3 (32) 32.0
 
Jan. 14, 2020, noon N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 7.3 μg/m3 (30) 30.0
 
Jan. 14, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 9.3 μg/m3 (39) 39.0
 
Jan. 14, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 9.3 μg/m3 (39) 39.0
 
Jan. 14, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 9.2 μg/m3 (38) 38.0
 
Jan. 14, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 6.7 μg/m3 (28) 28.0
 
Jan. 14, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 6.2 μg/m3 (26) 26.0
 
Jan. 14, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 6.6 μg/m3 (28) 28.0
 
Jan. 14, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 5.8 μg/m3 (24) 24.0
 
Jan. 14, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 6.1 μg/m3 (25) 25.0
 
Jan. 14, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 5.4 μg/m3 (23) 23.0
 
Jan. 14, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 4.9 μg/m3 (20) 20.0
 
Jan. 14, 2020, midnight N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 4.6 μg/m3 (19) 19.0
 
Jan. 13, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 5.3 μg/m3 (22) 22.0
 
Jan. 13, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 6.1 μg/m3 (25) 25.0
 
Jan. 13, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 5.9 μg/m3 (25) 25.0
 
Jan. 13, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 5.6 μg/m3 (23) 23.0
 
Jan. 13, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 3.2 μg/m3 (13) 19.0
 
Jan. 13, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A -0.8 μg/m3 (0) 18.0
 
Jan. 13, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 3.2 μg/m3 (13) 15.0
 
Jan. 13, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 4.9 μg/m3 (20) 20.0
 
Jan. 13, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 5.9 μg/m3 (25) 25.0
 
Jan. 13, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 6.4 μg/m3 (27) 27.0
 
Jan. 13, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 5.1 μg/m3 (21) 21.0
 
Jan. 13, 2020, noon N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 5.3 μg/m3 (22) 22.0
 
Jan. 13, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 6.8 μg/m3 (28) 28.0
 
Jan. 13, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 6.7 μg/m3 (28) 28.0
 
Jan. 13, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 5.4 μg/m3 (23) 23.0
 
Jan. 13, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 5.7 μg/m3 (24) 24.0
 
Jan. 13, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 4.6 μg/m3 (19) 19.0
 
Jan. 13, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 3.7 μg/m3 (15) 15.0
 
Jan. 13, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 3.7 μg/m3 (15) 15.0
 
Jan. 13, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 4.7 μg/m3 (20) 20.0
 
Jan. 13, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 3.6 μg/m3 (15) 15.0
 
Jan. 13, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 13, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 2.9 μg/m3 (12) 13.0
 
Jan. 13, 2020, midnight N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 3.7 μg/m3 (15) 15.0
 
Jan. 12, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 2.4 μg/m3 (10) 13.0
 
Jan. 12, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 12, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 4.2 μg/m3 (18) 18.0
 
Jan. 12, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 2.4 μg/m3 (10) 15.0
 
Jan. 12, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 2.7 μg/m3 (11) 15.0
 
Jan. 12, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 1.3 μg/m3 (5) 15.0
 
Jan. 12, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 1.1 μg/m3 (5) 14.0
 
Jan. 12, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 2.4 μg/m3 (10) 12.0
 
Jan. 12, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 4.8 μg/m3 (20) 20.0
 
Jan. 12, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 5.4 μg/m3 (23) 23.0
 
Jan. 12, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 5.8 μg/m3 (24) 24.0
 
Jan. 12, 2020, noon N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 4.8 μg/m3 (20) 20.0
 
Jan. 12, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 4.1 μg/m3 (17) 17.0
 
Jan. 12, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 4.0 μg/m3 (17) 17.0