AQSQID: 250250002

Site Name: Boston-Kenmore

Location: Boston (Beacon St), MA

Reporting: True, Located: True

Current AQI: 11.0

Boston (Beacon St) MA, US: 42.3489, -71.097702

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 18, 2019, midnight 12.0 ppb (11) 5.0 ppb (5) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 11.0
 
Sept. 17, 2019, 11 p.m. 20.0 ppb (19) 8.0 ppb (7) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A N/A N/A N/A 19.0
 
Sept. 17, 2019, 10 p.m. 21.0 ppb (19) 8.0 ppb (7) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A N/A N/A N/A 19.0
 
Sept. 17, 2019, 9 p.m. 18.0 ppb (17) 9.0 ppb (8) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 17.0
 
Sept. 17, 2019, 8 p.m. 14.0 ppb (13) 7.0 ppb (6) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 13.0
 
Sept. 17, 2019, 7 p.m. 9.0 ppb (8) 5.0 ppb (5) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A N/A 8.0
 
Sept. 17, 2019, 6 p.m. 11.0 ppb (10) 6.0 ppb (6) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A N/A 10.0
 
Sept. 17, 2019, 5 p.m. 17.0 ppb (16) 9.0 ppb (8) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 16.0
 
Sept. 17, 2019, 4 p.m. 11.0 ppb (10) 7.0 ppb (6) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A N/A 10.0
 
Sept. 17, 2019, 3 p.m. 12.0 ppb (11) 5.0 ppb (5) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 11.0
 
Sept. 17, 2019, 2 p.m. 13.0 ppb (12) 7.0 ppb (6) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 12.0
 
Sept. 17, 2019, 1 p.m. 20.0 ppb (19) 11.0 ppb (10) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 19.0
 
Sept. 17, 2019, noon 28.0 ppb (26) 14.0 ppb (13) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A N/A N/A N/A 26.0
 
Sept. 17, 2019, 11 a.m. 22.0 ppb (20) 9.0 ppb (8) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A N/A N/A N/A 20.0
 
Sept. 17, 2019, 10 a.m. 17.0 ppb (16) 4.0 ppb (4) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A N/A N/A N/A 16.0
 
Sept. 17, 2019, 9 a.m. 11.0 ppb (10) 1.0 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 10.0
 
Sept. 17, 2019, 8 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 5.0
 
Sept. 17, 2019, 7 a.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A N/A 4.0
 
Sept. 17, 2019, 6 a.m. 4.0 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 4.0
 
Sept. 17, 2019, 5 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 5.0
 
Sept. 17, 2019, 4 a.m. N/A 1.0 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 6.0
 
Sept. 17, 2019, 3 a.m. 9.0 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 8.0
 
Sept. 17, 2019, 2 a.m. 13.0 ppb (12) 2.0 ppb (2) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A N/A N/A N/A 12.0
 
Sept. 17, 2019, 1 a.m. 12.0 ppb (11) 2.0 ppb (2) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A N/A 11.0
 
Sept. 17, 2019, midnight 15.0 ppb (14) 4.0 ppb (4) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A N/A N/A N/A 14.0
 
Sept. 16, 2019, 11 p.m. 14.0 ppb (13) 3.0 ppb (3) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A N/A 13.0
 
Sept. 16, 2019, 10 p.m. 13.0 ppb (12) 5.0 ppb (5) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 12.0
 
Sept. 16, 2019, 9 p.m. 10.0 ppb (9) 4.0 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 9.0
 
Sept. 16, 2019, 8 p.m. 9.0 ppb (8) 5.0 ppb (5) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A N/A 8.0
 
Sept. 16, 2019, 7 p.m. 17.0 ppb (16) 9.0 ppb (8) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 16.0
 
Sept. 16, 2019, 6 p.m. 8.0 ppb (7) 4.0 ppb (4) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 7.0
 
Sept. 16, 2019, 5 p.m. 15.0 ppb (14) 7.0 ppb (6) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 14.0
 
Sept. 16, 2019, 4 p.m. 10.0 ppb (9) 5.0 ppb (5) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A N/A 9.0
 
Sept. 16, 2019, 3 p.m. 14.0 ppb (13) 8.0 ppb (7) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A N/A 13.0
 
Sept. 16, 2019, 2 p.m. 18.0 ppb (17) 10.0 ppb (9) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 17.0
 
Sept. 16, 2019, 1 p.m. 18.0 ppb (17) 8.0 ppb (7) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 17.0
 
Sept. 16, 2019, noon 22.0 ppb (20) 11.0 ppb (10) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A N/A N/A N/A 20.0
 
Sept. 16, 2019, 11 a.m. 14.0 ppb (13) 5.0 ppb (5) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A N/A 13.0
 
Sept. 16, 2019, 10 a.m. 9.0 ppb (8) 2.0 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 8.0
 
Sept. 16, 2019, 9 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A N/A 5.0
 
Sept. 16, 2019, 8 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 6.0
 
Sept. 16, 2019, 7 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 6.0
 
Sept. 16, 2019, 6 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, 5 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, 4 a.m. N/A 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 6.0
 
Sept. 16, 2019, 3 a.m. 15.0 ppb (14) 3.0 ppb (3) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A N/A N/A N/A 14.0
 
Sept. 16, 2019, 2 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 7.0
 
Sept. 16, 2019, 1 a.m. 9.0 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 8.0
 
Sept. 16, 2019, midnight 9.0 ppb (8) 2.0 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 8.0
 
Sept. 15, 2019, 11 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A N/A 6.0
 
Sept. 15, 2019, 10 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A N/A 3.0
 
Sept. 15, 2019, 9 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A N/A 2.0
 
Sept. 15, 2019, 8 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A N/A 3.0
 
Sept. 15, 2019, 7 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A N/A N/A 1.0
 
Sept. 15, 2019, 6 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A N/A N/A 1.0
 
Sept. 15, 2019, 5 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A N/A 3.0
 
Sept. 15, 2019, 4 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A N/A 2.0
 
Sept. 15, 2019, 3 p.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A N/A 1.0
 
Sept. 15, 2019, 2 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A N/A 2.0
 
Sept. 15, 2019, 1 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A N/A 4.0
 
Sept. 15, 2019, noon 3.0 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A N/A 3.0
 
Sept. 15, 2019, 11 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A N/A 3.0
 
Sept. 15, 2019, 10 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A N/A 3.0
 
Sept. 15, 2019, 9 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A N/A 3.0
 
Sept. 15, 2019, 8 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A N/A 1.0
 
Sept. 15, 2019, 7 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A N/A 3.0
 
Sept. 15, 2019, 6 a.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A N/A 2.0
 
Sept. 15, 2019, 5 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A N/A 3.0
 
Sept. 15, 2019, 4 a.m. N/A 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A N/A 3.0
 
Sept. 15, 2019, 3 a.m. 21.0 ppb (19) 8.0 ppb (7) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A N/A N/A N/A 19.0
 
Sept. 15, 2019, 2 a.m. 26.0 ppb (24) 10.0 ppb (9) N/A 16.0 ppb (15) N/A 0.0 ppb (0) N/A N/A N/A N/A 24.0
 
Sept. 15, 2019, 1 a.m. 23.0 ppb (21) 8.0 ppb (7) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A N/A N/A N/A 21.0
 
Sept. 15, 2019, midnight 20.0 ppb (19) 5.0 ppb (5) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A N/A N/A N/A 19.0
 
Sept. 14, 2019, 11 p.m. 17.0 ppb (16) 4.0 ppb (4) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A N/A N/A N/A 16.0
 
Sept. 14, 2019, 10 p.m. 19.0 ppb (18) 6.0 ppb (6) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A N/A N/A N/A 18.0
 
Sept. 14, 2019, 9 p.m. 19.0 ppb (18) 5.0 ppb (5) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A N/A N/A N/A 18.0
 
Sept. 14, 2019, 8 p.m. 13.0 ppb (12) 5.0 ppb (5) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 12.0
 
Sept. 14, 2019, 7 p.m. 15.0 ppb (14) 5.0 ppb (5) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A N/A 14.0
 
Sept. 14, 2019, 6 p.m. 12.0 ppb (11) 3.0 ppb (3) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 11.0
 
Sept. 14, 2019, 5 p.m. 7.0 ppb (6) 3.0 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 6.0
 
Sept. 14, 2019, 4 p.m. 8.0 ppb (7) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A N/A 7.0
 
Sept. 14, 2019, 3 p.m. 13.0 ppb (12) 6.0 ppb (6) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 12.0
 
Sept. 14, 2019, 2 p.m. 12.0 ppb (11) 5.0 ppb (5) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 11.0
 
Sept. 14, 2019, 1 p.m. 29.0 ppb (27) 13.0 ppb (12) N/A 16.0 ppb (15) N/A 0.0 ppb (0) N/A N/A N/A N/A 27.0
 
Sept. 14, 2019, noon 26.0 ppb (24) 10.0 ppb (9) N/A 16.0 ppb (15) N/A 0.0 ppb (0) N/A N/A N/A N/A 24.0
 
Sept. 14, 2019, 11 a.m. 39.0 ppb (36) 20.0 ppb (19) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A N/A N/A N/A 36.0
 
Sept. 14, 2019, 10 a.m. 45.0 ppb (42) 24.0 ppb (22) N/A 21.0 ppb (19) N/A 0.0 ppb (0) N/A N/A N/A N/A 42.0
 
Sept. 14, 2019, 9 a.m. 30.0 ppb (28) 12.0 ppb (11) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A N/A N/A N/A 28.0
 
Sept. 14, 2019, 8 a.m. 22.0 ppb (20) 6.0 ppb (6) N/A 16.0 ppb (15) N/A 0.0 ppb (0) N/A N/A N/A N/A 20.0
 
Sept. 14, 2019, 7 a.m. 17.0 ppb (16) 4.0 ppb (4) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A N/A N/A N/A 16.0
 
Sept. 14, 2019, 6 a.m. 17.0 ppb (16) 4.0 ppb (4) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A N/A N/A N/A 16.0
 
Sept. 14, 2019, 5 a.m. 23.0 ppb (21) 6.0 ppb (6) N/A 17.0 ppb (16) N/A 0.0 ppb (0) N/A N/A N/A N/A 21.0
 
Sept. 14, 2019, 4 a.m. N/A 9.0 ppb (8) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A N/A N/A N/A 17.0
 
Sept. 14, 2019, 3 a.m. 23.0 ppb (21) 7.0 ppb (6) N/A 16.0 ppb (15) N/A 0.0 ppb (0) N/A N/A N/A N/A 21.0
 
Sept. 14, 2019, 2 a.m. 23.0 ppb (21) 8.0 ppb (7) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A N/A N/A N/A 21.0
 
Sept. 14, 2019, 1 a.m. 13.0 ppb (12) 4.0 ppb (4) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 12.0
 
Sept. 14, 2019, midnight 13.0 ppb (12) 4.0 ppb (4) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 12.0
 
Sept. 13, 2019, 11 p.m. 22.0 ppb (20) 9.0 ppb (8) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A N/A N/A N/A 20.0
 
Sept. 13, 2019, 10 p.m. 14.0 ppb (13) 6.0 ppb (6) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 13.0
 
Sept. 13, 2019, 9 p.m. 19.0 ppb (18) 8.0 ppb (7) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A N/A N/A N/A 18.0
 
Sept. 13, 2019, 8 p.m. 17.0 ppb (16) 8.0 ppb (7) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 16.0
 
Sept. 13, 2019, 7 p.m. 13.0 ppb (12) 6.0 ppb (6) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 12.0
 
Sept. 13, 2019, 6 p.m. 16.0 ppb (15) 9.0 ppb (8) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 15.0
 
Sept. 13, 2019, 5 p.m. 12.0 ppb (11) 7.0 ppb (6) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A N/A 11.0
 
Sept. 13, 2019, 4 p.m. 11.0 ppb (10) 7.0 ppb (6) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 10.0
 
Sept. 13, 2019, 3 p.m. 35.0 ppb (32) 24.0 ppb (22) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A N/A N/A N/A 32.0
 
Sept. 13, 2019, 2 p.m. 11.0 ppb (10) 7.0 ppb (6) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 10.0
 
Sept. 13, 2019, 1 p.m. 20.0 ppb (19) 11.0 ppb (10) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 19.0
 
Sept. 13, 2019, noon 41.0 ppb (38) 25.0 ppb (23) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A N/A N/A N/A 38.0
 
Sept. 13, 2019, 11 a.m. 31.0 ppb (29) 19.0 ppb (18) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A N/A N/A N/A 29.0
 
Sept. 13, 2019, 10 a.m. 15.0 ppb (14) 5.0 ppb (5) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 14.0
 
Sept. 13, 2019, 9 a.m. 12.0 ppb (11) 4.0 ppb (4) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 11.0
 
Sept. 13, 2019, 8 a.m. 12.0 ppb (11) 4.0 ppb (4) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 11.0
 
Sept. 13, 2019, 7 a.m. 15.0 ppb (14) 4.0 ppb (4) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A N/A N/A N/A 14.0
 
Sept. 13, 2019, 6 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. 13, 2019, 5 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. 13, 2019, 4 a.m. N/A 2.0 ppb (2) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A N/A N/A N/A 10.0
 
Sept. 13, 2019, 3 a.m. 13.0 ppb (12) 2.0 ppb (2) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A N/A N/A N/A 12.0
 
Sept. 13, 2019, 2 a.m. 14.0 ppb (13) 3.0 ppb (3) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A N/A N/A N/A 13.0
 
Sept. 13, 2019, 1 a.m. 13.0 ppb (12) 3.0 ppb (3) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A N/A 12.0
 
Sept. 13, 2019, midnight 15.0 ppb (14) 5.0 ppb (5) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 14.0
 
Sept. 12, 2019, 11 p.m. 10.0 ppb (9) 3.0 ppb (3) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 9.0
 
Sept. 12, 2019, 10 p.m. 10.0 ppb (9) 4.0 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 9.0
 
Sept. 12, 2019, 9 p.m. 10.0 ppb (9) 5.0 ppb (5) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 9.0
 
Sept. 12, 2019, 8 p.m. 17.0 ppb (16) 9.0 ppb (8) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 16.0
 
Sept. 12, 2019, 7 p.m. 18.0 ppb (17) 9.0 ppb (8) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 17.0
 
Sept. 12, 2019, 6 p.m. 18.0 ppb (17) 10.0 ppb (9) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 17.0
 
Sept. 12, 2019, 5 p.m. 19.0 ppb (18) 10.0 ppb (9) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 18.0
 
Sept. 12, 2019, 4 p.m. 22.0 ppb (20) 13.0 ppb (12) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A N/A 20.0
 
Sept. 12, 2019, 3 p.m. 18.0 ppb (17) 9.0 ppb (8) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 17.0
 
Sept. 12, 2019, 2 p.m. 17.0 ppb (16) 8.0 ppb (7) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 16.0
 
Sept. 12, 2019, 1 p.m. 21.0 ppb (19) 12.0 ppb (11) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A N/A 19.0
 
Sept. 12, 2019, noon 14.0 ppb (13) 7.0 ppb (6) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 13.0
 
Sept. 12, 2019, 11 a.m. 15.0 ppb (14) 7.0 ppb (6) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 14.0
 
Sept. 12, 2019, 10 a.m. 9.0 ppb (8) 3.0 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A N/A 8.0
 
Sept. 12, 2019, 9 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A N/A 7.0
 
Sept. 12, 2019, 8 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A N/A 6.0
 
Sept. 12, 2019, 7 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 6.0
 
Sept. 12, 2019, 6 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 7.0
 
Sept. 12, 2019, 5 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 7.0
 
Sept. 12, 2019, 4 a.m. N/A 0.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 7.0
 
Sept. 12, 2019, 3 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 6.0
 
Sept. 12, 2019, 2 a.m. 14.0 ppb (13) 2.0 ppb (2) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A N/A N/A N/A 13.0
 
Sept. 12, 2019, 1 a.m. 11.0 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A N/A 10.0
 
Sept. 12, 2019, midnight 25.0 ppb (23) 8.0 ppb (7) N/A 17.0 ppb (16) N/A 0.0 ppb (0) N/A N/A N/A N/A 23.0
 
Sept. 11, 2019, 11 p.m. 18.0 ppb (17) 3.0 ppb (3) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A N/A N/A N/A 17.0
 
Sept. 11, 2019, 10 p.m. 24.0 ppb (22) 5.0 ppb (5) N/A 20.0 ppb (19) N/A 0.0 ppb (0) N/A N/A N/A N/A 22.0
 
Sept. 11, 2019, 9 p.m. 21.0 ppb (19) 7.0 ppb (6) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A N/A N/A N/A 19.0
 
Sept. 11, 2019, 8 p.m. 9.0 ppb (8) 2.0 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 8.0
 
Sept. 11, 2019, 7 p.m. 8.0 ppb (7) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 7.0
 
Sept. 11, 2019, 6 p.m. 14.0 ppb (13) 4.0 ppb (4) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A N/A 13.0
 
Sept. 11, 2019, 5 p.m. 17.0 ppb (16) 5.0 ppb (5) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A N/A N/A N/A 16.0
 
Sept. 11, 2019, 4 p.m. 16.0 ppb (15) 7.0 ppb (6) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 15.0
 
Sept. 11, 2019, 3 p.m. 16.0 ppb (15) 7.0 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A N/A 15.0
 
Sept. 11, 2019, 2 p.m. 19.0 ppb (18) 10.0 ppb (9) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A N/A 18.0
 
Sept. 11, 2019, 1 p.m. 15.0 ppb (14) 6.0 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A N/A 14.0
 
Sept. 11, 2019, noon 29.0 ppb (27) 14.0 ppb (13) N/A 15.0 ppb (14) N/A N/A N/A N/A N/A N/A 27.0
 
Sept. 11, 2019, 11 a.m. 13.0 ppb (12) 5.0 ppb (5) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A N/A 12.0
 
Sept. 11, 2019, 10 a.m. 12.0 ppb (11) 4.0 ppb (4) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A N/A 11.0
 
Sept. 11, 2019, 9 a.m. 3.0 ppb (3) 2.0 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A N/A 3.0
 
Sept. 11, 2019, 8 a.m. 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A N/A 1.0
 
Sept. 11, 2019, 7 a.m. 2.0 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A N/A 2.0
 
Sept. 11, 2019, 6 a.m. 13.0 ppb (12) 4.0 ppb (4) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A N/A 12.0
 
Sept. 11, 2019, 5 a.m. 11.0 ppb (10) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A N/A 10.0
 
Sept. 11, 2019, 4 a.m. N/A 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A N/A 5.0
 
Sept. 11, 2019, 3 a.m. 12.0 ppb (11) 4.0 ppb (4) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A N/A 11.0
 
Sept. 11, 2019, 2 a.m. 13.0 ppb (12) 3.0 ppb (3) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A N/A 12.0
 
Sept. 11, 2019, 1 a.m. 16.0 ppb (15) 4.0 ppb (4) N/A 12.0 ppb (11) N/A N/A N/A N/A N/A N/A 15.0