AQSQID: 390990013

Site Name: Youngstown - Oakhill

Location: Youngstown, OH

Reporting: True, Located: True

Current AQI: 5.0

Youngstown OH, US: 41.096158, -80.658908

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 22, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 7.0 ppb (5) N/A N/A N/A 5.0
 
Sept. 22, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 9.0 ppb (7) N/A N/A N/A 7.0
 
Sept. 22, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 8.0 ppb (6) N/A N/A N/A 6.0
 
Sept. 22, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 8.0 ppb (6) N/A N/A N/A 6.0
 
Sept. 22, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 10.0 ppb (8) N/A N/A N/A 8.0
 
Sept. 22, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A N/A 22.0
 
Sept. 22, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 43.0 ppb (33) N/A N/A N/A 33.0
 
Sept. 22, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 50.0 ppb (38) N/A N/A N/A 38.0
 
Sept. 22, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 54.0 ppb (42) N/A N/A N/A 42.0
 
Sept. 21, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 57.0 ppb (44) N/A N/A N/A 44.0
 
Sept. 21, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 66.0 ppb (51) N/A N/A N/A 51.0
 
Sept. 21, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 66.0 ppb (51) N/A N/A N/A 51.0
 
Sept. 21, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 64.0 ppb (49) N/A N/A N/A 49.0
 
Sept. 21, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 66.0 ppb (51) N/A N/A N/A 51.0
 
Sept. 21, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 65.0 ppb (50) N/A N/A N/A 50.0
 
Sept. 21, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 65.0 ppb (50) N/A N/A N/A 50.0
 
Sept. 21, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 60.0 ppb (46) N/A N/A N/A 46.0
 
Sept. 21, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 49.0 ppb (38) N/A N/A N/A 38.0
 
Sept. 21, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A N/A N/A 20.0
 
Sept. 21, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 16.0 ppb (12) N/A N/A N/A 12.0
 
Sept. 21, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A N/A 2.0
 
Sept. 21, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A N/A 2.0
 
Sept. 21, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A
Sept. 21, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A N/A 1.0
 
Sept. 21, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (4) N/A N/A N/A 4.0
 
Sept. 21, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A N/A 2.0
 
Sept. 21, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A N/A 1.0
 
Sept. 21, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 3.0 ppb (2) N/A N/A N/A 2.0
 
Sept. 21, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (4) N/A N/A N/A 4.0
 
Sept. 21, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A N/A 4.0
 
Sept. 21, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 11.0 ppb (8) N/A N/A N/A 8.0
 
Sept. 21, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 14.0 ppb (11) N/A N/A N/A 11.0
 
Sept. 21, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A N/A 28.0
 
Sept. 20, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 47.0 ppb (36) N/A N/A N/A 36.0
 
Sept. 20, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 52.0 ppb (40) N/A N/A N/A 40.0
 
Sept. 20, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 60.0 ppb (46) N/A N/A N/A 46.0
 
Sept. 20, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 59.0 ppb (45) N/A N/A N/A 45.0
 
Sept. 20, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 59.0 ppb (45) N/A N/A N/A 45.0
 
Sept. 20, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 59.0 ppb (45) N/A N/A N/A 45.0
 
Sept. 20, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 52.0 ppb (40) N/A N/A N/A 40.0
 
Sept. 20, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 44.0 ppb (34) N/A N/A N/A 34.0
 
Sept. 20, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 35.0 ppb (27) N/A N/A N/A 27.0
 
Sept. 20, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 31.0 ppb (24) N/A N/A N/A 24.0
 
Sept. 20, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 13.0 ppb (10) N/A N/A N/A 10.0
 
Sept. 20, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 7.0 ppb (5) N/A N/A N/A 5.0
 
Sept. 20, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A N/A 1.0
 
Sept. 20, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A
Sept. 20, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 3.0 ppb (2) N/A N/A N/A 2.0
 
Sept. 20, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A N/A 6.0
 
Sept. 20, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 3.0 ppb (2) N/A N/A N/A 2.0
 
Sept. 20, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A N/A 5.0
 
Sept. 20, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A N/A 10.0
 
Sept. 20, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A N/A 18.0
 
Sept. 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A N/A 22.0
 
Sept. 20, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A N/A 24.0
 
Sept. 20, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 39.0 ppb (30) N/A N/A N/A 30.0
 
Sept. 20, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 46.0 ppb (35) N/A N/A N/A 35.0
 
Sept. 19, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 50.0 ppb (38) N/A N/A N/A 38.0
 
Sept. 19, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 58.0 ppb (45) N/A N/A N/A 45.0
 
Sept. 19, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 61.0 ppb (47) N/A N/A N/A 47.0
 
Sept. 19, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 59.0 ppb (45) N/A N/A N/A 45.0
 
Sept. 19, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 60.0 ppb (46) N/A N/A N/A 46.0
 
Sept. 19, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 59.0 ppb (45) N/A N/A N/A 45.0
 
Sept. 19, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 54.0 ppb (42) N/A N/A N/A 42.0
 
Sept. 19, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 49.0 ppb (38) N/A N/A N/A 38.0
 
Sept. 19, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 44.0 ppb (34) N/A N/A N/A 34.0
 
Sept. 19, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 33.0 ppb (25) N/A N/A N/A 25.0
 
Sept. 19, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 21.0 ppb (16) N/A N/A N/A 16.0
 
Sept. 19, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 9.0 ppb (7) N/A N/A N/A 7.0
 
Sept. 19, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A N/A 1.0
 
Sept. 19, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A 1.0
 
Sept. 19, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A N/A 1.0
 
Sept. 19, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A N/A 1.0
 
Sept. 19, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A N/A 1.0
 
Sept. 19, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 12.0 ppb (9) N/A N/A N/A 9.0
 
Sept. 19, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 5.0 ppb (4) N/A N/A N/A 4.0
 
Sept. 19, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 6.0 ppb (5) N/A N/A N/A 5.0
 
Sept. 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A N/A 5.0
 
Sept. 19, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A N/A 8.0
 
Sept. 19, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A N/A 17.0
 
Sept. 19, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A N/A 22.0
 
Sept. 18, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A N/A 23.0
 
Sept. 18, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A N/A 27.0
 
Sept. 18, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A N/A 29.0
 
Sept. 18, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A N/A 29.0
 
Sept. 18, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A N/A 29.0
 
Sept. 18, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A N/A 29.0
 
Sept. 18, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A N/A 28.0
 
Sept. 18, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A N/A 28.0
 
Sept. 18, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 32.0 ppb (25) N/A N/A N/A 25.0
 
Sept. 18, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A N/A 21.0
 
Sept. 18, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A N/A 15.0
 
Sept. 18, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 11.0 ppb (8) N/A N/A N/A 8.0
 
Sept. 18, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 3.0 ppb (2) N/A N/A N/A 2.0
 
Sept. 18, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A
Sept. 18, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 4.0 ppb (3) N/A N/A N/A 3.0
 
Sept. 18, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 3.0 ppb (2) N/A N/A N/A 2.0
 
Sept. 18, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A N/A 6.0
 
Sept. 18, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A N/A 10.0
 
Sept. 18, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A N/A 13.0
 
Sept. 18, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A N/A 12.0
 
Sept. 18, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A N/A 15.0
 
Sept. 18, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A N/A 18.0
 
Sept. 18, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A N/A 22.0
 
Sept. 18, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A N/A 22.0
 
Sept. 17, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 21.0 ppb (16) N/A N/A N/A 16.0
 
Sept. 17, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A N/A 28.0
 
Sept. 17, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A N/A 31.0
 
Sept. 17, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A N/A 32.0
 
Sept. 17, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A N/A 32.0
 
Sept. 17, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A N/A 32.0
 
Sept. 17, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A N/A 30.0
 
Sept. 17, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A N/A 26.0
 
Sept. 17, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A N/A 20.0
 
Sept. 17, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A N/A 17.0
 
Sept. 17, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A N/A 15.0
 
Sept. 17, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A N/A 13.0
 
Sept. 17, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A N/A 12.0
 
Sept. 17, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A
Sept. 17, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A N/A 15.0
 
Sept. 17, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A N/A 16.0
 
Sept. 17, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A N/A 15.0
 
Sept. 17, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A N/A 13.0
 
Sept. 17, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A N/A 15.0
 
Sept. 17, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A N/A 20.0
 
Sept. 17, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A N/A 23.0
 
Sept. 17, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A N/A 28.0
 
Sept. 17, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A N/A 31.0
 
Sept. 16, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A N/A 32.0
 
Sept. 16, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 47.0 ppb (36) N/A N/A N/A 36.0
 
Sept. 16, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 46.0 ppb (35) N/A N/A N/A 35.0
 
Sept. 16, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 48.0 ppb (37) N/A N/A N/A 37.0
 
Sept. 16, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 50.0 ppb (38) N/A N/A N/A 38.0
 
Sept. 16, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 54.0 ppb (42) N/A N/A N/A 42.0
 
Sept. 16, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 50.0 ppb (38) N/A N/A N/A 38.0
 
Sept. 16, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 42.0 ppb (32) N/A N/A N/A 32.0
 
Sept. 16, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 28.0 ppb (22) N/A N/A N/A 22.0
 
Sept. 16, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A N/A N/A 20.0
 
Sept. 16, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 23.0 ppb (18) N/A N/A N/A 18.0
 
Sept. 16, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 5.0 ppb (4) N/A N/A N/A 4.0
 
Sept. 16, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 3.0 ppb (2) N/A N/A N/A 2.0
 
Sept. 16, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A
Sept. 16, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 4.0 ppb (3) N/A N/A N/A 3.0
 
Sept. 16, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A N/A 13.0
 
Sept. 16, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A N/A 12.0
 
Sept. 16, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A N/A 18.0
 
Sept. 16, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A N/A 9.0
 
Sept. 16, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (4) N/A N/A N/A 4.0
 
Sept. 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 2.0
 
Sept. 16, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (4) N/A N/A N/A 4.0
 
Sept. 16, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A N/A 6.0
 
Sept. 16, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A N/A 15.0
 
Sept. 15, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A N/A 25.0
 
Sept. 15, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 37.0 ppb (28) N/A N/A N/A 28.0
 
Sept. 15, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A N/A 30.0
 
Sept. 15, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A N/A 28.0
 
Sept. 15, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 37.0 ppb (28) N/A N/A N/A 28.0
 
Sept. 15, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A N/A 30.0
 
Sept. 15, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A N/A 31.0
 
Sept. 15, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A N/A 30.0
 
Sept. 15, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A N/A 28.0
 
Sept. 15, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A N/A 22.0
 
Sept. 15, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 11.0 ppb (8) N/A N/A N/A 8.0
 
Sept. 15, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 3.0 ppb (2) N/A N/A N/A 2.0
 
Sept. 15, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A N/A 1.0
 
Sept. 15, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A
Sept. 15, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A N/A 1.0
 
Sept. 15, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A