ID: 483

AQSQID: 250250002

Site Name: Boston-Kenmore

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

Updated: Jan. 17, 2022, 4:34 p.m.

Location: Boston (Kenmore), MA

Reporting: True, Located: True

Current AQI: 38.0

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. 17, 2022, 3 p.m. 14.6 ppb (14) 3.2 ppb (4) N/A 11.0 ppb (11) N/A 0.0 ppb (0) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2022, 2 p.m. 8.5 ppb (9) 2.2 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2022, 1 p.m. 8.6 ppb (9) 2.2 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 17, 2022, noon 9.6 ppb (10) 3.0 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 16.0 μg/m3 (60) 60.0
 
Jan. 17, 2022, 11 a.m. 6.5 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 15.0 μg/m3 (58) 58.0
 
Jan. 17, 2022, 10 a.m. 6.7 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 17, 2022, 9 a.m. 4.3 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
Jan. 17, 2022, 8 a.m. 5.4 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2022, 7 a.m. 5.5 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2022, 6 a.m. 8.2 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2022, 5 a.m. 12.4 ppb (12) 2.1 ppb (2) N/A 10.0 ppb (10) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2022, 4 a.m. 15.0 ppb (15) 2.7 ppb (3) N/A 12.0 ppb (12) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2022, 3 a.m. 16.7 ppb (16) 2.7 ppb (3) N/A 14.0 ppb (14) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2022, 2 a.m. 22.8 ppb (22) 4.2 ppb (4) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2022, 1 a.m. 30.7 ppb (29) 6.0 ppb (6) N/A 25.0 ppb (24) N/A 0.0 ppb (0) N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
Jan. 17, 2022, midnight 29.4 ppb (28) 5.9 ppb (6) N/A 24.0 ppb (23) N/A 0.0 ppb (0) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2022, 11 p.m. 28.9 ppb (28) 4.7 ppb (5) N/A 24.0 ppb (23) N/A 0.0 ppb (0) N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2022, 10 p.m. 29.5 ppb (28) 5.2 ppb (5) N/A 24.0 ppb (23) N/A 0.0 ppb (0) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2022, 9 p.m. 37.7 ppb (36) 8.6 ppb (9) N/A 29.0 ppb (28) N/A 0.0 ppb (0) N/A N/A N/A 8.0 μg/m3 (34) 36.0
 
Jan. 16, 2022, 8 p.m. 44.7 ppb (43) 15.4 ppb (15) N/A 29.0 ppb (28) N/A 1.0 ppb (2) N/A N/A N/A 8.0 μg/m3 (34) 43.0
 
Jan. 16, 2022, 7 p.m. 51.3 ppb (49) 21.1 ppb (20) N/A 30.0 ppb (29) N/A 1.0 ppb (2) N/A N/A N/A 9.0 μg/m3 (38) 49.0
 
Jan. 16, 2022, 6 p.m. 46.6 ppb (44) 19.4 ppb (19) N/A 27.0 ppb (26) N/A 2.0 ppb (3) N/A N/A N/A 8.0 μg/m3 (34) 44.0
 
Jan. 16, 2022, 5 p.m. 43.7 ppb (42) 19.2 ppb (19) N/A 25.0 ppb (24) N/A 1.0 ppb (2) N/A N/A N/A 8.0 μg/m3 (34) 42.0
 
Jan. 16, 2022, 4 p.m. 28.4 ppb (27) 10.8 ppb (11) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
Jan. 16, 2022, 3 p.m. 23.9 ppb (23) 8.4 ppb (8) N/A 16.0 ppb (16) N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2022, 2 p.m. 26.4 ppb (25) 9.2 ppb (9) N/A 17.0 ppb (17) N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2022, 1 p.m. 25.7 ppb (25) 7.4 ppb (7) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2022, noon 22.6 ppb (22) 3.6 ppb (4) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2022, 11 a.m. 20.3 ppb (20) 3.2 ppb (4) N/A 17.0 ppb (17) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2022, 10 a.m. 18.8 ppb (18) 3.0 ppb (3) N/A 16.0 ppb (16) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2022, 9 a.m. 14.4 ppb (14) 2.4 ppb (3) N/A 12.0 ppb (12) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2022, 8 a.m. 11.7 ppb (12) 2.1 ppb (2) N/A 10.0 ppb (10) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2022, 7 a.m. 10.4 ppb (10) 1.9 ppb (2) N/A 9.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2022, 6 a.m. 8.8 ppb (9) 1.7 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2022, 5 a.m. 9.5 ppb (9) 2.1 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2022, 4 a.m. 10.7 ppb (11) 2.5 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2022, 3 a.m. 10.4 ppb (10) 2.4 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2022, 2 a.m. 9.2 ppb (9) 1.8 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
Jan. 16, 2022, 1 a.m. 10.7 ppb (11) 2.2 ppb (3) N/A 9.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2022, midnight 9.5 ppb (9) 1.9 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2022, 11 p.m. 9.8 ppb (10) 2.3 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2022, 10 p.m. 8.3 ppb (8) 2.2 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2022, 9 p.m. 7.7 ppb (8) 2.1 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2022, 8 p.m. 7.6 ppb (8) 2.5 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2022, 7 p.m. 8.1 ppb (8) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2022, 6 p.m. 6.6 ppb (7) 2.9 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2022, 5 p.m. 5.1 ppb (5) 2.2 ppb (3) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2022, 4 p.m. 7.5 ppb (8) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2022, 3 p.m. 5.3 ppb (5) 2.3 ppb (3) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2022, 2 p.m. 8.7 ppb (9) 3.7 ppb (4) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2022, 1 p.m. 9.1 ppb (9) 3.2 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2022, noon 10.0 ppb (10) 2.8 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2022, 11 a.m. 7.8 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2022, 10 a.m. 6.4 ppb (7) 1.6 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2022, 9 a.m. 6.5 ppb (7) 1.7 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2022, 8 a.m. 7.4 ppb (7) 1.7 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2022, 7 a.m. 7.6 ppb (8) 2.1 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2022, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2022, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2022, 4 a.m. 8.8 ppb (9) 2.8 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 15, 2022, 3 a.m. 12.5 ppb (12) 5.3 ppb (5) N/A 7.0 ppb (7) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 15, 2022, 2 a.m. 10.1 ppb (10) 2.6 ppb (3) N/A 8.0 ppb (8) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 15, 2022, 1 a.m. 12.7 ppb (12) 4.2 ppb (4) N/A 9.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2022, midnight 12.5 ppb (12) 4.4 ppb (5) N/A 8.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
Jan. 14, 2022, 11 p.m. 13.1 ppb (13) 5.5 ppb (6) N/A 8.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2022, 10 p.m. 12.1 ppb (12) 4.3 ppb (5) N/A 8.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
Jan. 14, 2022, 9 p.m. 12.7 ppb (12) 4.6 ppb (5) N/A 8.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
Jan. 14, 2022, 8 p.m. 15.8 ppb (15) 5.4 ppb (6) N/A 11.0 ppb (11) N/A 0.0 ppb (0) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 14, 2022, 7 p.m. 16.0 ppb (16) 5.8 ppb (6) N/A 10.0 ppb (10) N/A 0.0 ppb (0) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 14, 2022, 6 p.m. 15.7 ppb (15) 5.9 ppb (6) N/A 10.0 ppb (10) N/A 0.0 ppb (0) N/A N/A N/A 13.0 μg/m3 (53) 53.0
 
Jan. 14, 2022, 5 p.m. 17.0 ppb (17) 5.7 ppb (6) N/A 11.0 ppb (11) N/A 0.0 ppb (0) N/A N/A N/A 16.0 μg/m3 (60) 60.0
 
Jan. 14, 2022, 4 p.m. 24.2 ppb (23) 8.9 ppb (9) N/A 15.0 ppb (15) N/A 0.0 ppb (0) N/A N/A N/A 17.0 μg/m3 (62) 62.0
 
Jan. 14, 2022, 3 p.m. 37.7 ppb (36) 15.7 ppb (15) N/A 22.0 ppb (21) N/A 0.0 ppb (0) N/A N/A N/A 19.0 μg/m3 (66) 66.0
 
Jan. 14, 2022, 2 p.m. 42.3 ppb (40) 19.9 ppb (19) N/A 22.0 ppb (21) N/A 0.0 ppb (0) N/A N/A N/A 19.0 μg/m3 (66) 66.0
 
Jan. 14, 2022, 1 p.m. 47.3 ppb (45) 21.8 ppb (21) N/A 25.0 ppb (24) N/A 0.0 ppb (0) N/A N/A N/A 19.0 μg/m3 (66) 66.0
 
Jan. 14, 2022, noon 35.0 ppb (34) 12.1 ppb (12) N/A 23.0 ppb (22) N/A 0.0 ppb (0) N/A N/A N/A 19.0 μg/m3 (66) 66.0
 
Jan. 14, 2022, 11 a.m. 31.0 ppb (30) 8.8 ppb (9) N/A 22.0 ppb (21) N/A 0.0 ppb (0) N/A N/A N/A 19.0 μg/m3 (66) 66.0
 
Jan. 14, 2022, 10 a.m. 34.9 ppb (33) 9.9 ppb (10) N/A 25.0 ppb (24) N/A 0.0 ppb (0) N/A N/A N/A 20.0 μg/m3 (68) 68.0
 
Jan. 14, 2022, 9 a.m. 41.6 ppb (40) 14.6 ppb (14) N/A 27.0 ppb (26) N/A 0.0 ppb (0) N/A N/A N/A 21.0 μg/m3 (70) 70.0
 
Jan. 14, 2022, 8 a.m. 59.1 ppb (57) 29.4 ppb (28) N/A 30.0 ppb (29) N/A 1.0 ppb (2) N/A N/A N/A 21.0 μg/m3 (70) 70.0
 
Jan. 14, 2022, 7 a.m. 65.1 ppb (63) 34.3 ppb (33) N/A 31.0 ppb (30) N/A 0.0 ppb (0) N/A N/A N/A 21.0 μg/m3 (70) 70.0
 
Jan. 14, 2022, 6 a.m. 99.0 ppb (99) 65.0 ppb (63) N/A 34.0 ppb (33) N/A 1.0 ppb (2) N/A N/A N/A 22.0 μg/m3 (72) 99.0
 
Jan. 14, 2022, 5 a.m. 126.2 ppb (106) 89.9 ppb (90) N/A 36.0 ppb (34) N/A 1.0 ppb (2) N/A N/A N/A 22.0 μg/m3 (72) 106.0
 
Jan. 14, 2022, 2 a.m. 50.1 ppb (48) 15.1 ppb (15) N/A 35.0 ppb (34) N/A 0.0 ppb (0) N/A N/A N/A 16.0 μg/m3 (60) 60.0
 
Jan. 14, 2022, 1 a.m. 71.0 ppb (70) 32.6 ppb (31) N/A 38.0 ppb (36) N/A 1.0 ppb (2) N/A N/A N/A 16.0 μg/m3 (60) 70.0
 
Jan. 14, 2022, midnight 74.8 ppb (74) 37.0 ppb (35) N/A 38.0 ppb (36) N/A 1.0 ppb (2) N/A N/A N/A 16.0 μg/m3 (60) 74.0
 
Jan. 13, 2022, 11 p.m. 82.6 ppb (82) 42.6 ppb (41) N/A 40.0 ppb (38) N/A 1.0 ppb (2) N/A N/A N/A 17.0 μg/m3 (62) 82.0
 
Jan. 13, 2022, 10 p.m. 82.5 ppb (82) 41.7 ppb (40) N/A 41.0 ppb (39) N/A 1.0 ppb (2) N/A N/A N/A 17.0 μg/m3 (62) 82.0
 
Jan. 13, 2022, 9 p.m. 62.1 ppb (60) 25.0 ppb (24) N/A 37.0 ppb (35) N/A 0.0 ppb (0) N/A N/A N/A 17.0 μg/m3 (62) 62.0
 
Jan. 13, 2022, 8 p.m. 32.1 ppb (31) 8.5 ppb (9) N/A 24.0 ppb (23) N/A 0.0 ppb (0) N/A N/A N/A 13.0 μg/m3 (53) 53.0
 
Jan. 13, 2022, 7 p.m. 27.0 ppb (26) 7.9 ppb (8) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A N/A N/A 13.0 μg/m3 (53) 53.0
 
Jan. 13, 2022, 6 p.m. 27.0 ppb (26) 9.1 ppb (9) N/A 18.0 ppb (17) N/A 1.0 ppb (2) N/A N/A N/A 14.0 μg/m3 (55) 55.0
 
Jan. 13, 2022, 5 p.m. 40.1 ppb (38) 17.8 ppb (17) N/A 22.0 ppb (21) N/A 1.0 ppb (2) N/A N/A N/A 17.0 μg/m3 (62) 62.0
 
Jan. 13, 2022, 4 p.m. 46.3 ppb (44) 21.0 ppb (20) N/A 25.0 ppb (24) N/A 1.0 ppb (2) N/A N/A N/A 20.0 μg/m3 (68) 68.0
 
Jan. 13, 2022, 3 p.m. 66.0 ppb (64) 34.7 ppb (33) N/A 31.0 ppb (30) N/A 1.0 ppb (2) N/A N/A N/A 22.0 μg/m3 (72) 72.0
 
Jan. 13, 2022, 2 p.m. 74.8 ppb (74) 41.1 ppb (39) N/A 34.0 ppb (33) N/A 1.0 ppb (2) N/A N/A N/A 20.0 μg/m3 (68) 74.0
 
Jan. 13, 2022, 1 p.m. 81.2 ppb (80) 47.2 ppb (45) N/A 34.0 ppb (33) N/A 1.0 ppb (2) N/A N/A N/A 19.0 μg/m3 (66) 80.0
 
Jan. 13, 2022, noon 104.4 ppb (102) 68.4 ppb (67) N/A 36.0 ppb (34) N/A 1.0 ppb (2) N/A N/A N/A 18.0 μg/m3 (64) 102.0
 
Jan. 13, 2022, 11 a.m. 87.3 ppb (87) 52.2 ppb (50) N/A 35.0 ppb (34) N/A 1.0 ppb (2) N/A N/A N/A 17.0 μg/m3 (62) 87.0
 
Jan. 13, 2022, 10 a.m. 64.8 ppb (63) 33.3 ppb (32) N/A 32.0 ppb (31) N/A 1.0 ppb (2) N/A N/A N/A 14.0 μg/m3 (55) 63.0
 
Jan. 13, 2022, 9 a.m. 49.5 ppb (47) 18.9 ppb (18) N/A 31.0 ppb (30) N/A 0.0 ppb (0) N/A N/A N/A 13.0 μg/m3 (53) 53.0
 
Jan. 13, 2022, 8 a.m. 32.2 ppb (31) 7.2 ppb (7) N/A 25.0 ppb (24) N/A 0.0 ppb (0) N/A N/A N/A 13.0 μg/m3 (53) 53.0
 
Jan. 13, 2022, 7 a.m. 31.7 ppb (30) 7.8 ppb (8) N/A 24.0 ppb (23) N/A 0.0 ppb (0) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 13, 2022, 6 a.m. 40.2 ppb (38) 14.3 ppb (14) N/A 26.0 ppb (25) N/A 0.0 ppb (0) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 13, 2022, 5 a.m. 44.9 ppb (43) 17.9 ppb (17) N/A 27.0 ppb (26) N/A 0.0 ppb (0) N/A N/A N/A 13.0 μg/m3 (53) 53.0
 
Jan. 13, 2022, 4 a.m. 38.6 ppb (37) 12.7 ppb (12) N/A 26.0 ppb (25) N/A 0.0 ppb (0) N/A N/A N/A N/A 37.0
 
Jan. 13, 2022, 3 a.m. 36.1 ppb (35) 11.0 ppb (11) N/A 25.0 ppb (24) N/A 0.0 ppb (0) N/A N/A N/A N/A 35.0
 
Jan. 13, 2022, 2 a.m. 33.4 ppb (32) 9.3 ppb (9) N/A 24.0 ppb (23) N/A 0.0 ppb (0) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 13, 2022, 1 a.m. 39.4 ppb (38) 12.6 ppb (12) N/A 27.0 ppb (26) N/A 0.0 ppb (0) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 13, 2022, midnight 45.5 ppb (43) 16.9 ppb (16) N/A 29.0 ppb (28) N/A 1.0 ppb (2) N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 12, 2022, 11 p.m. 38.5 ppb (37) 9.2 ppb (9) N/A 29.0 ppb (28) N/A 0.0 ppb (0) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 12, 2022, 10 p.m. 36.0 ppb (34) 6.8 ppb (7) N/A 29.0 ppb (28) N/A 0.0 ppb (0) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 12, 2022, 9 p.m. 29.3 ppb (28) 7.1 ppb (7) N/A 22.0 ppb (21) N/A 0.0 ppb (0) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 12, 2022, 8 p.m. 19.7 ppb (19) 4.4 ppb (5) N/A 15.0 ppb (15) N/A 0.0 ppb (0) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 12, 2022, 7 p.m. 18.1 ppb (18) 5.0 ppb (5) N/A 13.0 ppb (13) N/A 0.0 ppb (0) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 12, 2022, 6 p.m. 21.0 ppb (20) 7.6 ppb (8) N/A 13.0 ppb (13) N/A 0.0 ppb (0) N/A N/A N/A N/A 20.0
 
Jan. 12, 2022, 5 p.m. 27.6 ppb (27) 12.7 ppb (12) N/A 15.0 ppb (15) N/A 0.0 ppb (0) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 12, 2022, 4 p.m. 25.4 ppb (24) 11.2 ppb (11) N/A 14.0 ppb (14) N/A 0.0 ppb (0) N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 12, 2022, 3 p.m. 24.7 ppb (24) 10.0 ppb (10) N/A 15.0 ppb (15) N/A 0.0 ppb (0) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 12, 2022, 2 p.m. 32.8 ppb (31) 13.5 ppb (13) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
Jan. 12, 2022, 1 p.m. 51.9 ppb (49) 24.7 ppb (24) N/A 27.0 ppb (26) N/A 0.0 ppb (0) N/A N/A N/A 9.0 μg/m3 (38) 49.0
 
Jan. 12, 2022, noon 55.4 ppb (53) 23.7 ppb (23) N/A 32.0 ppb (31) N/A 0.0 ppb (0) N/A N/A N/A 11.0 μg/m3 (46) 53.0
 
Jan. 12, 2022, 11 a.m. 48.3 ppb (46) 18.6 ppb (18) N/A 30.0 ppb (29) N/A 0.0 ppb (0) N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 12, 2022, 10 a.m. 35.9 ppb (34) 10.1 ppb (10) N/A 26.0 ppb (25) N/A 0.0 ppb (0) N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 12, 2022, 9 a.m. 27.8 ppb (27) 4.8 ppb (5) N/A 23.0 ppb (22) N/A 0.0 ppb (0) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 12, 2022, 8 a.m. 29.8 ppb (29) 6.0 ppb (6) N/A 24.0 ppb (23) N/A 0.0 ppb (0) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 12, 2022, 7 a.m. 25.3 ppb (24) 5.8 ppb (6) N/A 20.0 ppb (19) N/A 0.0 ppb (0) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 12, 2022, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 12, 2022, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 13.0 μg/m3 (53) 53.0
 
Jan. 12, 2022, 4 a.m. 34.8 ppb (33) 9.8 ppb (10) N/A 25.0 ppb (24) N/A N/A N/A N/A N/A 13.0 μg/m3 (53) 53.0
 
Jan. 12, 2022, 3 a.m. 27.8 ppb (27) 7.4 ppb (7) N/A 20.0 ppb (19) N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 12, 2022, 2 a.m. 21.8 ppb (21) 3.9 ppb (4) N/A 18.0 ppb (17) N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 12, 2022, 1 a.m. 16.6 ppb (16) 3.8 ppb (4) N/A 13.0 ppb (13) N/A 0.0 ppb (0) N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 12, 2022, midnight 12.8 ppb (13) 2.4 ppb (3) N/A 10.0 ppb (10) N/A 0.0 ppb (0) N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 11, 2022, 11 p.m. 16.1 ppb (16) 3.5 ppb (4) N/A 13.0 ppb (13) N/A 0.0 ppb (0) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 11, 2022, 10 p.m. 18.0 ppb (17) 6.5 ppb (7) N/A 12.0 ppb (12) N/A 0.0 ppb (0) N/A N/A N/A 13.0 μg/m3 (53) 53.0
 
Jan. 11, 2022, 9 p.m. 10.4 ppb (10) 2.6 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 11, 2022, 8 p.m. 12.1 ppb (12) 4.1 ppb (4) N/A 8.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 11, 2022, 7 p.m. 9.8 ppb (10) 3.5 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 11, 2022, 6 p.m. 13.1 ppb (13) 5.6 ppb (6) N/A 8.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A 13.0 μg/m3 (53) 53.0
 
Jan. 11, 2022, 5 p.m. 7.6 ppb (8) 3.4 ppb (4) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 11, 2022, 4 p.m. 11.7 ppb (12) 5.2 ppb (5) N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 11, 2022, 3 p.m. 10.6 ppb (10) 4.2 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 11, 2022, 2 p.m. 13.1 ppb (13) 5.6 ppb (6) N/A 8.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
Jan. 11, 2022, 1 p.m. 13.8 ppb (14) 5.2 ppb (5) N/A 9.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
Jan. 11, 2022, noon 15.6 ppb (15) 5.5 ppb (6) N/A 10.0 ppb (10) N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 11, 2022, 11 a.m. 10.5 ppb (10) 3.3 ppb (4) N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 11, 2022, 10 a.m. 8.8 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 11, 2022, 9 a.m. 8.0 ppb (8) 1.4 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 11, 2022, 8 a.m. 6.5 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 11, 2022, 7 a.m. 5.4 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 11, 2022, 6 a.m. 7.1 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 11, 2022, 5 a.m. 7.1 ppb (7) 0.5 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 11, 2022, 4 a.m. 12.3 ppb (12) 1.5 ppb (2) N/A 11.0 ppb (11) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 11, 2022, 3 a.m. 12.9 ppb (13) 1.8 ppb (2) N/A 11.0 ppb (11) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 11, 2022, 2 a.m. 13.6 ppb (13) 2.1 ppb (2) N/A 12.0 ppb (12) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 11, 2022, 1 a.m. 12.1 ppb (12) 1.4 ppb (2) N/A 11.0 ppb (11) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 11, 2022, midnight 14.2 ppb (14) 1.6 ppb (2) N/A 13.0 ppb (13) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 10, 2022, 11 p.m. 12.2 ppb (12) 2.0 ppb (2) N/A 10.0 ppb (10) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 10, 2022, 10 p.m. 12.5 ppb (12) 1.8 ppb (2) N/A 11.0 ppb (11) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 10, 2022, 9 p.m. 11.6 ppb (11) 2.7 ppb (3) N/A 9.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 10, 2022, 8 p.m. 9.0 ppb (9) 2.1 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 10, 2022, 7 p.m. 9.6 ppb (10) 3.0 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 10, 2022, 6 p.m. 11.1 ppb (11) 3.9 ppb (4) N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 10, 2022, 5 p.m. 8.6 ppb (9) 3.3 ppb (4) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 10, 2022, 4 p.m. 11.4 ppb (11) 4.1 ppb (4) N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 10, 2022, 3 p.m. 8.1 ppb (8) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 10, 2022, 2 p.m. 7.2 ppb (7) 2.8 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0