ID: 483

AQSQID: 250250002

Site Name: Boston-Kenmore

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

Updated: Sept. 22, 2020, 2:39 p.m.

Location: Boston (Kenmore), MA

Reporting: True, Located: True

Current AQI: 44.0

Boston (Kenmore) MA, US: 42.3489, -71.097702

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 22, 2020, noon 47.0 ppb (44) 26.0 ppb (24) N/A 20.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A N/A 44.0
 
Sept. 22, 2020, 11 a.m. 41.0 ppb (38) 21.0 ppb (19) N/A 19.0 ppb (18) N/A 1.0 ppb (1) N/A N/A N/A N/A 38.0
 
Sept. 22, 2020, 10 a.m. 37.0 ppb (34) 19.0 ppb (18) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A N/A N/A N/A 34.0
 
Sept. 22, 2020, 9 a.m. 13.0 ppb (12) 2.0 ppb (2) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A N/A 12.0
 
Sept. 22, 2020, 8 a.m. 12.0 ppb (11) 1.0 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A N/A N/A N/A 11.0
 
Sept. 22, 2020, 7 a.m. 16.0 ppb (15) 2.0 ppb (2) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A N/A N/A N/A 15.0
 
Sept. 22, 2020, 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. 22, 2020, 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. 22, 2020, 4 a.m. N/A 3.0 ppb (3) N/A 15.0 ppb (14) N/A N/A N/A N/A N/A N/A 14.0
 
Sept. 22, 2020, 3 a.m. 17.0 ppb (16) 2.0 ppb (2) N/A 15.0 ppb (14) N/A N/A N/A N/A N/A N/A 16.0
 
Sept. 22, 2020, 2 a.m. 19.0 ppb (18) 3.0 ppb (3) N/A 16.0 ppb (15) N/A N/A N/A N/A N/A N/A 18.0
 
Sept. 22, 2020, 1 a.m. 21.0 ppb (19) 4.0 ppb (4) N/A 17.0 ppb (16) N/A 0.0 ppb (0) N/A N/A N/A N/A 19.0
 
Sept. 22, 2020, midnight 12.0 ppb (11) 1.0 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A N/A 11.0
 
Sept. 21, 2020, 11 p.m. 11.0 ppb (10) 2.0 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 10.0
 
Sept. 21, 2020, 10 p.m. 11.0 ppb (10) 2.0 ppb (2) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A N/A 10.0
 
Sept. 21, 2020, 9 p.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. 21, 2020, 8 p.m. 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. 21, 2020, 7 p.m. 16.0 ppb (15) 4.0 ppb (4) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A N/A N/A N/A 15.0
 
Sept. 21, 2020, 6 p.m. 12.0 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 11.0
 
Sept. 21, 2020, 5 p.m. 10.0 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 9.0
 
Sept. 21, 2020, 4 p.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. 21, 2020, 3 p.m. 17.0 ppb (16) 6.0 ppb (6) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A N/A N/A N/A 16.0
 
Sept. 21, 2020, 2 p.m. 29.0 ppb (27) 13.0 ppb (12) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A N/A N/A N/A 27.0
 
Sept. 21, 2020, 1 p.m. 38.0 ppb (35) 20.0 ppb (19) N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A N/A N/A 35.0
 
Sept. 21, 2020, noon 50.0 ppb (46) 30.0 ppb (28) N/A 20.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A N/A 46.0
 
Sept. 21, 2020, 11 a.m. 52.0 ppb (48) 32.0 ppb (30) N/A 20.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A N/A 48.0
 
Sept. 21, 2020, 10 a.m. 24.0 ppb (22) 8.0 ppb (7) N/A 16.0 ppb (15) N/A 0.0 ppb (0) N/A N/A N/A N/A 22.0
 
Sept. 21, 2020, 9 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. 21, 2020, 8 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. 21, 2020, 7 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 8.0
 
Sept. 21, 2020, 6 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. 21, 2020, 5 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. 21, 2020, 4 a.m. N/A 4.0 ppb (4) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A N/A N/A N/A 14.0
 
Sept. 21, 2020, 3 a.m. 22.0 ppb (20) 4.0 ppb (4) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A N/A N/A N/A 20.0
 
Sept. 21, 2020, 2 a.m. 20.0 ppb (19) 2.0 ppb (2) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A N/A N/A N/A 19.0
 
Sept. 21, 2020, 1 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A N/A 9.0
 
Sept. 21, 2020, midnight 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. 20, 2020, 11 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 4.0
 
Sept. 20, 2020, 10 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 4.0
 
Sept. 20, 2020, 9 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A N/A 3.0
 
Sept. 20, 2020, 8 p.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. 20, 2020, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A N/A 2.0
 
Sept. 20, 2020, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A N/A 1.0
 
Sept. 20, 2020, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A N/A 2.0
 
Sept. 20, 2020, 4 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A N/A 1.0
 
Sept. 20, 2020, 3 p.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. 20, 2020, 2 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A N/A 2.0
 
Sept. 20, 2020, 1 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A N/A 3.0
 
Sept. 20, 2020, noon 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 4.0
 
Sept. 20, 2020, 11 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 4.0
 
Sept. 20, 2020, 10 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A N/A 5.0
 
Sept. 20, 2020, 9 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 4.0
 
Sept. 20, 2020, 8 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 4.0
 
Sept. 20, 2020, 7 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 4.0
 
Sept. 20, 2020, 6 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 4.0
 
Sept. 20, 2020, 5 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 6.0
 
Sept. 20, 2020, 4 a.m. N/A 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 4.0
 
Sept. 20, 2020, 3 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. 20, 2020, 2 a.m. 11.0 ppb (10) 0.0 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A N/A 10.0
 
Sept. 20, 2020, 1 a.m. 15.0 ppb (14) 1.0 ppb (1) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A N/A N/A N/A 14.0
 
Sept. 20, 2020, midnight 10.0 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 9.0
 
Sept. 19, 2020, 11 p.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. 19, 2020, 10 p.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. 19, 2020, 9 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A N/A 5.0
 
Sept. 19, 2020, 8 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A N/A 4.0
 
Sept. 19, 2020, 7 p.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. 19, 2020, 6 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A N/A 2.0
 
Sept. 19, 2020, 5 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. 19, 2020, 4 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A N/A 2.0
 
Sept. 19, 2020, 3 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A N/A 2.0
 
Sept. 19, 2020, 2 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A N/A 3.0
 
Sept. 19, 2020, 1 p.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. 19, 2020, noon 7.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A N/A 6.0
 
Sept. 19, 2020, 11 a.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. 19, 2020, 10 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. 19, 2020, 9 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A N/A 2.0
 
Sept. 19, 2020, 8 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A N/A 2.0
 
Sept. 19, 2020, 7 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 4.0
 
Sept. 19, 2020, 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. 19, 2020, 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. 19, 2020, 4 a.m. N/A 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A N/A 4.0
 
Sept. 19, 2020, 3 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. 19, 2020, 2 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. 19, 2020, 1 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 4.0
 
Sept. 19, 2020, midnight 12.0 ppb (11) 1.0 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A N/A N/A N/A 11.0
 
Sept. 18, 2020, 11 p.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. 18, 2020, 10 p.m. 18.0 ppb (17) 4.0 ppb (4) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A N/A N/A N/A 17.0
 
Sept. 18, 2020, 9 p.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. 18, 2020, 8 p.m. 7.0 ppb (6) 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. 18, 2020, 7 p.m. 7.0 ppb (6) 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. 18, 2020, 6 p.m. 6.0 ppb (6) 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. 18, 2020, 5 p.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. 18, 2020, 4 p.m. 7.0 ppb (6) 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. 18, 2020, 3 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. 18, 2020, 2 p.m. 12.0 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 11.0
 
Sept. 18, 2020, 1 p.m. 11.0 ppb (10) 2.0 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 10.0
 
Sept. 18, 2020, noon 12.0 ppb (11) 3.0 ppb (3) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A N/A 11.0
 
Sept. 18, 2020, 11 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. 18, 2020, 10 a.m. 10.0 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 9.0
 
Sept. 18, 2020, 9 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A N/A 5.0
 
Sept. 18, 2020, 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. 18, 2020, 7 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A N/A 5.0
 
Sept. 18, 2020, 6 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. 18, 2020, 5 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A N/A 5.0
 
Sept. 18, 2020, 4 a.m. N/A 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 4.0
 
Sept. 18, 2020, 3 a.m. 6.0 ppb (6) 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. 18, 2020, 2 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. 18, 2020, 1 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 9.0
 
Sept. 18, 2020, midnight 26.0 ppb (24) 2.0 ppb (2) N/A 25.0 ppb (23) N/A 0.0 ppb (0) N/A N/A N/A N/A 24.0
 
Sept. 17, 2020, 11 p.m. 20.0 ppb (19) 1.0 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A N/A N/A N/A 19.0
 
Sept. 17, 2020, 10 p.m. 25.0 ppb (23) 3.0 ppb (3) N/A 22.0 ppb (20) N/A 0.0 ppb (0) N/A N/A N/A N/A 23.0
 
Sept. 17, 2020, 9 p.m. 23.0 ppb (21) 2.0 ppb (2) N/A 21.0 ppb (19) N/A 0.0 ppb (0) N/A N/A N/A N/A 21.0
 
Sept. 17, 2020, 8 p.m. 24.0 ppb (22) 5.0 ppb (5) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A N/A N/A N/A 22.0
 
Sept. 17, 2020, 7 p.m. 16.0 ppb (15) 2.0 ppb (2) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A N/A N/A N/A 15.0
 
Sept. 17, 2020, 6 p.m. 20.0 ppb (19) 3.0 ppb (3) N/A 17.0 ppb (16) N/A 0.0 ppb (0) N/A N/A N/A N/A 19.0
 
Sept. 17, 2020, 5 p.m. 18.0 ppb (17) 4.0 ppb (4) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A N/A N/A N/A 17.0
 
Sept. 17, 2020, 4 p.m. 11.0 ppb (10) 1.0 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A N/A N/A N/A 10.0
 
Sept. 17, 2020, 3 p.m. 18.0 ppb (17) 3.0 ppb (3) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A N/A N/A N/A 17.0
 
Sept. 17, 2020, 2 p.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. 17, 2020, 1 p.m. 22.0 ppb (20) 5.0 ppb (5) N/A 16.0 ppb (15) N/A 0.0 ppb (0) N/A N/A N/A N/A 20.0
 
Sept. 17, 2020, noon 24.0 ppb (22) 7.0 ppb (6) N/A 17.0 ppb (16) N/A 1.0 ppb (1) N/A N/A N/A N/A 22.0
 
Sept. 17, 2020, 11 a.m. 22.0 ppb (20) 7.0 ppb (6) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A N/A N/A N/A 20.0
 
Sept. 17, 2020, 10 a.m. 18.0 ppb (17) 4.0 ppb (4) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A N/A N/A N/A 17.0
 
Sept. 17, 2020, 9 a.m. 10.0 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 9.0
 
Sept. 17, 2020, 8 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 4.0
 
Sept. 17, 2020, 7 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A N/A 3.0
 
Sept. 17, 2020, 6 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 4.0
 
Sept. 17, 2020, 5 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A N/A 3.0
 
Sept. 17, 2020, 4 a.m. N/A 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A N/A 3.0
 
Sept. 17, 2020, 3 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 4.0
 
Sept. 17, 2020, 2 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 4.0
 
Sept. 17, 2020, 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. 17, 2020, midnight 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, 2020, 11 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. 16, 2020, 10 p.m. 19.0 ppb (18) 4.0 ppb (4) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A N/A N/A N/A 18.0
 
Sept. 16, 2020, 9 p.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. 16, 2020, 8 p.m. 11.0 ppb (10) 2.0 ppb (2) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A N/A 10.0
 
Sept. 16, 2020, 7 p.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. 16, 2020, 6 p.m. 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, 2020, 5 p.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. 16, 2020, 4 p.m. 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, 2020, 3 p.m. 10.0 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 9.0
 
Sept. 16, 2020, 2 p.m. 12.0 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 11.0
 
Sept. 16, 2020, 1 p.m. 17.0 ppb (16) 5.0 ppb (5) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A N/A N/A N/A 16.0
 
Sept. 16, 2020, noon 25.0 ppb (23) 9.0 ppb (8) N/A 16.0 ppb (15) N/A 0.0 ppb (0) N/A N/A N/A N/A 23.0
 
Sept. 16, 2020, 11 a.m. 40.0 ppb (37) 19.0 ppb (18) N/A 21.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A N/A 37.0
 
Sept. 16, 2020, 10 a.m. 31.0 ppb (29) 13.0 ppb (12) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A N/A N/A N/A 29.0
 
Sept. 16, 2020, 9 a.m. 18.0 ppb (17) 4.0 ppb (4) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A N/A N/A N/A 17.0
 
Sept. 16, 2020, 8 a.m. 11.0 ppb (10) 2.0 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 10.0
 
Sept. 16, 2020, 7 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 7.0
 
Sept. 16, 2020, 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, 2020, 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, 2020, 4 a.m. N/A 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A N/A 7.0
 
Sept. 16, 2020, 3 a.m. 18.0 ppb (17) 4.0 ppb (4) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A N/A 17.0
 
Sept. 16, 2020, 2 a.m. 17.0 ppb (16) 3.0 ppb (3) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A N/A 16.0
 
Sept. 16, 2020, 1 a.m. 19.0 ppb (18) 4.0 ppb (4) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A N/A N/A N/A 18.0
 
Sept. 16, 2020, midnight 30.0 ppb (28) 8.0 ppb (7) N/A 22.0 ppb (20) N/A 0.0 ppb (0) N/A N/A N/A N/A 28.0
 
Sept. 15, 2020, 11 p.m. 28.0 ppb (26) 7.0 ppb (6) N/A 21.0 ppb (19) N/A 0.0 ppb (0) N/A N/A N/A N/A 26.0
 
Sept. 15, 2020, 10 p.m. 21.0 ppb (19) 5.0 ppb (5) N/A 16.0 ppb (15) N/A 0.0 ppb (0) N/A N/A N/A N/A 19.0
 
Sept. 15, 2020, 9 p.m. 17.0 ppb (16) 3.0 ppb (3) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A N/A N/A N/A 16.0
 
Sept. 15, 2020, 8 p.m. 15.0 ppb (14) 2.0 ppb (2) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A N/A N/A N/A 14.0
 
Sept. 15, 2020, 7 p.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. 15, 2020, 6 p.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. 15, 2020, 5 p.m. 12.0 ppb (11) 3.0 ppb (3) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A N/A 11.0
 
Sept. 15, 2020, 4 p.m. 11.0 ppb (10) 2.0 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 10.0
 
Sept. 15, 2020, 3 p.m. 11.0 ppb (10) 3.0 ppb (3) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 10.0
 
Sept. 15, 2020, 2 p.m. 12.0 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 11.0
 
Sept. 15, 2020, 1 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