AQSQID: 250250002

Site Name: Boston-Kenmore

Location: Boston (Kenmore), MA

Reporting: True, Located: True

Current AQI: 23.0

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
Jan. 22, 2020, 6 p.m. 25.0 ppb (23) 9.0 ppb (8) N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A N/A N/A 23.0
 
Jan. 22, 2020, 5 p.m. 28.0 ppb (26) 11.0 ppb (10) N/A 17.0 ppb (16) N/A 1.0 ppb (1) N/A N/A N/A N/A 26.0
 
Jan. 22, 2020, 4 p.m. 54.0 ppb (50) 30.0 ppb (28) N/A 24.0 ppb (22) N/A 1.0 ppb (1) N/A N/A N/A N/A 50.0
 
Jan. 22, 2020, 3 p.m. 66.0 ppb (63) 33.0 ppb (31) N/A 34.0 ppb (31) N/A 1.0 ppb (1) N/A N/A N/A N/A 63.0
 
Jan. 22, 2020, 2 p.m. 76.0 ppb (73) 40.0 ppb (37) N/A 36.0 ppb (33) N/A 1.0 ppb (1) N/A N/A N/A N/A 73.0
 
Jan. 22, 2020, 1 p.m. 75.0 ppb (72) 36.0 ppb (33) N/A 39.0 ppb (36) N/A 1.0 ppb (1) N/A N/A N/A N/A 72.0
 
Jan. 22, 2020, noon 83.0 ppb (81) 42.0 ppb (39) N/A 41.0 ppb (38) N/A 1.0 ppb (1) N/A N/A N/A N/A 81.0
 
Jan. 22, 2020, 11 a.m. 106.0 ppb (101) 63.0 ppb (60) N/A 42.0 ppb (39) N/A 2.0 ppb (3) N/A N/A N/A N/A 101.0
 
Jan. 22, 2020, 10 a.m. 93.0 ppb (91) 51.0 ppb (47) N/A 42.0 ppb (39) N/A 1.0 ppb (1) N/A N/A N/A N/A 91.0
 
Jan. 22, 2020, 9 a.m. 69.0 ppb (66) 28.0 ppb (26) N/A 41.0 ppb (38) N/A 1.0 ppb (1) N/A N/A N/A N/A 66.0
 
Jan. 22, 2020, 8 a.m. 48.0 ppb (44) 10.0 ppb (9) N/A 38.0 ppb (35) N/A 1.0 ppb (1) N/A N/A N/A N/A 44.0
 
Jan. 22, 2020, 7 a.m. 47.0 ppb (44) 9.0 ppb (8) N/A 38.0 ppb (35) N/A 1.0 ppb (1) N/A N/A N/A N/A 44.0
 
Jan. 22, 2020, 6 a.m. 55.0 ppb (51) 15.0 ppb (14) N/A 39.0 ppb (36) N/A 1.0 ppb (1) N/A N/A N/A N/A 51.0
 
Jan. 22, 2020, 5 a.m. 46.0 ppb (43) 10.0 ppb (9) N/A 37.0 ppb (34) N/A 1.0 ppb (1) N/A N/A N/A N/A 43.0
 
Jan. 22, 2020, 4 a.m. N/A 5.0 ppb (5) N/A 32.0 ppb (30) N/A 0.0 ppb (0) N/A N/A N/A N/A 30.0
 
Jan. 22, 2020, 3 a.m. 47.0 ppb (44) 10.0 ppb (9) N/A 37.0 ppb (34) N/A 1.0 ppb (1) N/A N/A N/A N/A 44.0
 
Jan. 22, 2020, 2 a.m. 74.0 ppb (71) 29.0 ppb (27) N/A 44.0 ppb (41) N/A 1.0 ppb (1) N/A N/A N/A N/A 71.0
 
Jan. 22, 2020, 1 a.m. 77.0 ppb (74) 31.0 ppb (29) N/A 46.0 ppb (43) N/A 1.0 ppb (1) N/A N/A N/A N/A 74.0
 
Jan. 22, 2020, midnight 69.0 ppb (66) 25.0 ppb (23) N/A 45.0 ppb (42) N/A 1.0 ppb (1) N/A N/A N/A N/A 66.0
 
Jan. 21, 2020, 11 p.m. 50.0 ppb (46) 15.0 ppb (14) N/A 35.0 ppb (32) N/A 1.0 ppb (1) N/A N/A N/A N/A 46.0
 
Jan. 21, 2020, 10 p.m. 32.0 ppb (30) 7.0 ppb (6) N/A 25.0 ppb (23) N/A 1.0 ppb (1) N/A N/A N/A N/A 30.0
 
Jan. 21, 2020, 9 p.m. 32.0 ppb (30) 11.0 ppb (10) N/A 21.0 ppb (19) N/A 0.0 ppb (0) N/A N/A N/A N/A 30.0
 
Jan. 21, 2020, 8 p.m. 21.0 ppb (19) 6.0 ppb (6) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A N/A N/A N/A 19.0
 
Jan. 21, 2020, 7 p.m. 22.0 ppb (20) 8.0 ppb (7) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A N/A N/A N/A 20.0
 
Jan. 21, 2020, 6 p.m. 27.0 ppb (25) 13.0 ppb (12) N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A N/A N/A 25.0
 
Jan. 21, 2020, 5 p.m. 28.0 ppb (26) 13.0 ppb (12) N/A 15.0 ppb (14) N/A 1.0 ppb (1) N/A N/A N/A N/A 26.0
 
Jan. 21, 2020, 4 p.m. 24.0 ppb (22) 11.0 ppb (10) N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A N/A 22.0
 
Jan. 21, 2020, 3 p.m. 27.0 ppb (25) 12.0 ppb (11) N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A N/A N/A 25.0
 
Jan. 21, 2020, 2 p.m. 26.0 ppb (24) 11.0 ppb (10) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A N/A N/A N/A 24.0
 
Jan. 21, 2020, 1 p.m. 40.0 ppb (37) 16.0 ppb (15) N/A 24.0 ppb (22) N/A 1.0 ppb (1) N/A N/A N/A N/A 37.0
 
Jan. 21, 2020, noon 38.0 ppb (35) 11.0 ppb (10) N/A 27.0 ppb (25) N/A 1.0 ppb (1) N/A N/A N/A N/A 35.0
 
Jan. 21, 2020, 11 a.m. 25.0 ppb (23) 4.0 ppb (4) N/A 20.0 ppb (19) N/A 0.0 ppb (0) N/A N/A N/A N/A 23.0
 
Jan. 21, 2020, 10 a.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
 
Jan. 21, 2020, 9 a.m. 17.0 ppb (16) 2.0 ppb (2) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A N/A N/A N/A 16.0
 
Jan. 21, 2020, 8 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
 
Jan. 21, 2020, 7 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
 
Jan. 21, 2020, 6 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
 
Jan. 21, 2020, 5 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
 
Jan. 21, 2020, 4 a.m. N/A 2.0 ppb (2) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A N/A N/A N/A 14.0
 
Jan. 21, 2020, 3 a.m. 22.0 ppb (20) 3.0 ppb (3) N/A 20.0 ppb (19) N/A 0.0 ppb (0) N/A N/A N/A N/A 20.0
 
Jan. 21, 2020, 2 a.m. 21.0 ppb (19) 2.0 ppb (2) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A N/A N/A N/A 19.0
 
Jan. 21, 2020, 1 a.m. 15.0 ppb (14) 2.0 ppb (2) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A N/A N/A N/A 14.0
 
Jan. 21, 2020, midnight 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
 
Jan. 20, 2020, 11 p.m. 21.0 ppb (19) 3.0 ppb (3) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A N/A N/A N/A 19.0
 
Jan. 20, 2020, 10 p.m. 18.0 ppb (17) 3.0 ppb (3) N/A 16.0 ppb (15) N/A 0.0 ppb (0) N/A N/A N/A N/A 17.0
 
Jan. 20, 2020, 9 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
 
Jan. 20, 2020, 8 p.m. 20.0 ppb (19) 10.0 ppb (9) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A N/A 19.0
 
Jan. 20, 2020, 7 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
 
Jan. 20, 2020, 6 p.m. 9.0 ppb (8) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A N/A 8.0
 
Jan. 20, 2020, 5 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
 
Jan. 20, 2020, 4 p.m. 11.0 ppb (10) 4.0 ppb (4) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 10.0
 
Jan. 20, 2020, 3 p.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
 
Jan. 20, 2020, 2 p.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
 
Jan. 20, 2020, 1 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
 
Jan. 20, 2020, noon 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
 
Jan. 20, 2020, 11 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
 
Jan. 20, 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
 
Jan. 20, 2020, 9 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
 
Jan. 20, 2020, 8 a.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
 
Jan. 20, 2020, 7 a.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
 
Jan. 20, 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
Jan. 20, 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
Jan. 20, 2020, 4 a.m. N/A 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A N/A 6.0
 
Jan. 20, 2020, 3 a.m. 8.0 ppb (7) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A N/A 7.0
 
Jan. 20, 2020, 2 a.m. 7.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A N/A 6.0
 
Jan. 20, 2020, 1 a.m. 10.0 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A 2.0 ppb (3) N/A N/A N/A N/A 9.0
 
Jan. 20, 2020, midnight 4.0 ppb (4) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 2.0 ppb (3) N/A N/A N/A N/A 4.0
 
Jan. 19, 2020, 7 a.m. 46.0 ppb (43) 13.0 ppb (12) N/A 33.0 ppb (31) N/A 1.0 ppb (1) N/A N/A N/A N/A 43.0
 
Jan. 19, 2020, 6 a.m. 65.0 ppb (62) 26.0 ppb (24) N/A 39.0 ppb (36) N/A 1.0 ppb (1) N/A N/A N/A N/A 62.0
 
Jan. 19, 2020, 5 a.m. 73.0 ppb (70) 32.0 ppb (30) N/A 41.0 ppb (38) N/A 1.0 ppb (1) N/A N/A N/A N/A 70.0
 
Jan. 19, 2020, 4 a.m. N/A 17.0 ppb (16) N/A 38.0 ppb (35) N/A 1.0 ppb (1) N/A N/A N/A N/A 35.0
 
Jan. 19, 2020, 3 a.m. 37.0 ppb (34) 8.0 ppb (7) N/A 29.0 ppb (27) N/A 1.0 ppb (1) N/A N/A N/A N/A 34.0
 
Jan. 19, 2020, 2 a.m. 34.0 ppb (31) 10.0 ppb (9) N/A 25.0 ppb (23) N/A 0.0 ppb (0) N/A N/A N/A N/A 31.0
 
Jan. 19, 2020, 1 a.m. 26.0 ppb (24) 5.0 ppb (5) N/A 21.0 ppb (19) N/A 0.0 ppb (0) N/A N/A N/A N/A 24.0
 
Jan. 19, 2020, midnight 29.0 ppb (27) 8.0 ppb (7) N/A 21.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A N/A 27.0
 
Jan. 18, 2020, 11 p.m. 26.0 ppb (24) 7.0 ppb (6) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A N/A N/A N/A 24.0
 
Jan. 18, 2020, 10 p.m. 26.0 ppb (24) 7.0 ppb (6) N/A 20.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A N/A 24.0
 
Jan. 18, 2020, 9 p.m. 30.0 ppb (28) 9.0 ppb (8) N/A 21.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A N/A 28.0
 
Jan. 18, 2020, 8 p.m. 30.0 ppb (28) 9.0 ppb (8) N/A 21.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A N/A 28.0
 
Jan. 18, 2020, 7 p.m. 28.0 ppb (26) 7.0 ppb (6) N/A 21.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A N/A 26.0
 
Jan. 18, 2020, 6 p.m. 33.0 ppb (31) 9.0 ppb (8) N/A 24.0 ppb (22) N/A 1.0 ppb (1) N/A N/A N/A N/A 31.0
 
Jan. 18, 2020, 5 p.m. 35.0 ppb (32) 12.0 ppb (11) N/A 24.0 ppb (22) N/A 1.0 ppb (1) N/A N/A N/A N/A 32.0
 
Jan. 18, 2020, 4 p.m. 25.0 ppb (23) 7.0 ppb (6) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A N/A N/A N/A 23.0
 
Jan. 18, 2020, 3 p.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
 
Jan. 18, 2020, 2 p.m. 11.0 ppb (10) 3.0 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 10.0
 
Jan. 18, 2020, 1 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
 
Jan. 18, 2020, noon 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
 
Jan. 18, 2020, 11 a.m. 12.0 ppb (11) 2.0 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A N/A 11.0
 
Jan. 18, 2020, 10 a.m. 16.0 ppb (15) 3.0 ppb (3) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A N/A N/A N/A 15.0
 
Jan. 18, 2020, 9 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
 
Jan. 18, 2020, 8 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
 
Jan. 18, 2020, 7 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
 
Jan. 18, 2020, 6 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
 
Jan. 18, 2020, 5 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
 
Jan. 18, 2020, 4 a.m. N/A 2.0 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 7.0
 
Jan. 18, 2020, 3 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
 
Jan. 18, 2020, 2 a.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
 
Jan. 18, 2020, 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
 
Jan. 18, 2020, midnight 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
 
Jan. 17, 2020, 11 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
 
Jan. 17, 2020, 10 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
 
Jan. 17, 2020, 9 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
 
Jan. 17, 2020, 8 p.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
 
Jan. 17, 2020, 7 p.m. 12.0 ppb (11) 6.0 ppb (6) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 11.0
 
Jan. 17, 2020, 6 p.m. 9.0 ppb (8) 4.0 ppb (4) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A N/A 8.0
 
Jan. 17, 2020, 5 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
 
Jan. 17, 2020, 4 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
 
Jan. 17, 2020, 3 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
 
Jan. 17, 2020, 2 p.m. 15.0 ppb (14) 6.0 ppb (6) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 14.0
 
Jan. 17, 2020, 1 p.m. 12.0 ppb (11) 5.0 ppb (5) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 11.0
 
Jan. 17, 2020, noon 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
 
Jan. 17, 2020, 11 a.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
 
Jan. 17, 2020, 10 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A N/A 5.0
 
Jan. 17, 2020, 9 a.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
 
Jan. 17, 2020, 8 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
 
Jan. 17, 2020, 7 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A N/A 5.0
 
Jan. 17, 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
Jan. 17, 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
Jan. 17, 2020, 4 a.m. N/A 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A N/A 3.0
 
Jan. 17, 2020, 3 a.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A N/A 6.0
 
Jan. 17, 2020, 2 a.m. 7.0 ppb (6) 3.0 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A N/A 6.0
 
Jan. 17, 2020, 1 a.m. 9.0 ppb (8) 4.0 ppb (4) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 8.0
 
Jan. 17, 2020, midnight 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
 
Jan. 16, 2020, 11 p.m. 11.0 ppb (10) 5.0 ppb (5) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 10.0
 
Jan. 16, 2020, 10 p.m. 9.0 ppb (8) 4.0 ppb (4) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 8.0
 
Jan. 16, 2020, 9 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A N/A 6.0
 
Jan. 16, 2020, 8 p.m. 7.0 ppb (6) 3.0 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A N/A 6.0
 
Jan. 16, 2020, 7 p.m. 7.0 ppb (6) 3.0 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A N/A 6.0
 
Jan. 16, 2020, 6 p.m. 8.0 ppb (7) 4.0 ppb (4) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A N/A 7.0
 
Jan. 16, 2020, 5 p.m. 12.0 ppb (11) 5.0 ppb (5) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 11.0
 
Jan. 16, 2020, 4 p.m. 15.0 ppb (14) 7.0 ppb (6) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A N/A 14.0
 
Jan. 16, 2020, 3 p.m. 28.0 ppb (26) 13.0 ppb (12) N/A 15.0 ppb (14) N/A 1.0 ppb (1) N/A N/A N/A N/A 26.0
 
Jan. 16, 2020, 2 p.m. 59.0 ppb (55) 30.0 ppb (28) N/A 29.0 ppb (27) N/A 1.0 ppb (1) N/A N/A N/A N/A 55.0
 
Jan. 16, 2020, 1 p.m. 52.0 ppb (48) 23.0 ppb (21) N/A 28.0 ppb (26) N/A 1.0 ppb (1) N/A N/A N/A N/A 48.0
 
Jan. 16, 2020, noon 47.0 ppb (44) 20.0 ppb (19) N/A 27.0 ppb (25) N/A 1.0 ppb (1) N/A N/A N/A N/A 44.0
 
Jan. 16, 2020, 11 a.m. 45.0 ppb (42) 16.0 ppb (15) N/A 29.0 ppb (27) N/A 1.0 ppb (1) N/A N/A N/A N/A 42.0
 
Jan. 16, 2020, 10 a.m. 45.0 ppb (42) 17.0 ppb (16) N/A 29.0 ppb (27) N/A 1.0 ppb (1) N/A N/A N/A N/A 42.0
 
Jan. 16, 2020, 9 a.m. 40.0 ppb (37) 13.0 ppb (12) N/A 26.0 ppb (24) N/A 1.0 ppb (1) N/A N/A N/A N/A 37.0
 
Jan. 16, 2020, 8 a.m. 42.0 ppb (39) 14.0 ppb (13) N/A 28.0 ppb (26) N/A 1.0 ppb (1) N/A N/A N/A N/A 39.0
 
Jan. 16, 2020, 7 a.m. 41.0 ppb (38) 12.0 ppb (11) N/A 29.0 ppb (27) N/A 1.0 ppb (1) N/A N/A N/A N/A 38.0
 
Jan. 16, 2020, 6 a.m. 46.0 ppb (43) 16.0 ppb (15) N/A 30.0 ppb (28) N/A 1.0 ppb (1) N/A N/A N/A N/A 43.0
 
Jan. 16, 2020, 5 a.m. 47.0 ppb (44) 17.0 ppb (16) N/A 30.0 ppb (28) N/A 1.0 ppb (1) N/A N/A N/A N/A 44.0
 
Jan. 16, 2020, 4 a.m. N/A 6.0 ppb (6) N/A 27.0 ppb (25) N/A 1.0 ppb (1) N/A N/A N/A N/A 25.0
 
Jan. 16, 2020, 3 a.m. 41.0 ppb (38) 14.0 ppb (13) N/A 27.0 ppb (25) N/A 1.0 ppb (1) N/A N/A N/A N/A 38.0
 
Jan. 16, 2020, 2 a.m. 37.0 ppb (34) 11.0 ppb (10) N/A 27.0 ppb (25) N/A 1.0 ppb (1) N/A N/A N/A N/A 34.0
 
Jan. 16, 2020, 1 a.m. 35.0 ppb (32) 8.0 ppb (7) N/A 27.0 ppb (25) N/A 1.0 ppb (1) N/A N/A N/A N/A 32.0
 
Jan. 16, 2020, midnight 40.0 ppb (37) 10.0 ppb (9) N/A 30.0 ppb (28) N/A 1.0 ppb (1) N/A N/A N/A N/A 37.0
 
Jan. 15, 2020, 11 p.m. 36.0 ppb (33) 9.0 ppb (8) N/A 27.0 ppb (25) N/A 1.0 ppb (1) N/A N/A N/A N/A 33.0
 
Jan. 15, 2020, 10 p.m. 28.0 ppb (26) 6.0 ppb (6) N/A 21.0 ppb (19) N/A 0.0 ppb (0) N/A N/A N/A N/A 26.0
 
Jan. 15, 2020, 9 p.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
 
Jan. 15, 2020, 8 p.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
 
Jan. 15, 2020, 7 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
 
Jan. 15, 2020, 6 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
 
Jan. 15, 2020, 5 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
 
Jan. 15, 2020, 4 p.m. 11.0 ppb (10) 4.0 ppb (4) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 10.0
 
Jan. 15, 2020, 3 p.m. 15.0 ppb (14) 6.0 ppb (6) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A N/A 14.0
 
Jan. 15, 2020, 2 p.m. 22.0 ppb (20) 9.0 ppb (8) N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A N/A 20.0
 
Jan. 15, 2020, 1 p.m. 33.0 ppb (31) 15.0 ppb (14) N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A N/A N/A 31.0
 
Jan. 15, 2020, noon 31.0 ppb (29) 12.0 ppb (11) N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A N/A N/A 29.0
 
Jan. 15, 2020, 11 a.m. 24.0 ppb (22) 9.0 ppb (8) N/A 15.0 ppb (14) N/A 1.0 ppb (1) N/A N/A N/A N/A 22.0
 
Jan. 15, 2020, 10 a.m. 17.0 ppb (16) 5.0 ppb (5) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A N/A N/A N/A 16.0
 
Jan. 15, 2020, 9 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
 
Jan. 15, 2020, 8 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
 
Jan. 15, 2020, 7 a.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
 
Jan. 15, 2020, 6 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
 
Jan. 15, 2020, 5 a.m. 20.0 ppb (19) 4.0 ppb (4) N/A 16.0 ppb (15) N/A 0.0 ppb (0) N/A N/A N/A N/A 19.0
 
Jan. 15, 2020, 4 a.m. N/A 6.0 ppb (6) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A N/A N/A N/A 17.0
 
Jan. 15, 2020, 3 a.m. 27.0 ppb (25) 9.0 ppb (8) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A N/A N/A N/A 25.0