AQSQID: 250154002

Site Name: Ware

Location: Ware (Enfield), MA

Reporting: True, Located: True

Current AQI: 34.0

Ware (Enfield) MA, US: 42.298302, -72.334396

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 29, 2020, 4 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 6.0 μg/m3 (25) 34.0
 
Jan. 29, 2020, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A 6.0 μg/m3 (25) 33.0
 
Jan. 29, 2020, 2 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 29, 2020, 1 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 29, 2020, noon 1.0 ppb (1) 0.0 ppb (0) 0.6 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 5.0 μg/m3 (21) 32.0
 
Jan. 29, 2020, 11 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.6 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 6.0 μg/m3 (25) 32.0
 
Jan. 29, 2020, 10 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.6 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 5.0 μg/m3 (21) 32.0
 
Jan. 29, 2020, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.5 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 5.0 μg/m3 (21) 31.0
 
Jan. 29, 2020, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) 0.5 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 29, 2020, 7 a.m. N/A N/A 0.5 ppb (0) N/A N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 6.0 μg/m3 (25) 31.0
 
Jan. 29, 2020, 6 a.m. N/A N/A 0.5 ppb (0) N/A N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 6.0 μg/m3 (25) 30.0
 
Jan. 29, 2020, 5 a.m. N/A N/A 0.4 ppb (0) N/A N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 7.0 μg/m3 (29) 30.0
 
Jan. 29, 2020, 4 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.4 ppb (0) 0.0 ppb (0) N/A N/A 39.0 ppb (30) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 29, 2020, 3 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.6 ppb (1) 1.0 ppb (1) N/A N/A 37.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
Jan. 29, 2020, 2 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.6 ppb (1) 1.0 ppb (1) N/A N/A 36.0 ppb (28) N/A N/A 3.0 μg/m3 (12) 28.0
 
Jan. 29, 2020, 1 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 4.0 μg/m3 (17) 26.0
 
Jan. 29, 2020, midnight 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 5.0 μg/m3 (21) 27.0
 
Jan. 28, 2020, 11 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 4.0 μg/m3 (17) 26.0
 
Jan. 28, 2020, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 3.0 μg/m3 (12) 25.0
 
Jan. 28, 2020, 9 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
Jan. 28, 2020, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 28, 2020, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 4.0 μg/m3 (17) 24.0
 
Jan. 28, 2020, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 4.0 μg/m3 (17) 23.0
 
Jan. 28, 2020, 5 p.m. 1.0 ppb (1) 0.0 ppb (0) 1.1 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 4.0 μg/m3 (17) 23.0
 
Jan. 28, 2020, 4 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 4.0 μg/m3 (17) 23.0
 
Jan. 28, 2020, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 28, 2020, 2 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 28, 2020, 1 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.5 ppb (0) 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 4.0 μg/m3 (17) 22.0
 
Jan. 28, 2020, noon 1.0 ppb (1) 0.0 ppb (0) 0.6 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 4.0 μg/m3 (17) 22.0
 
Jan. 28, 2020, 11 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 5.0 μg/m3 (21) 22.0
 
Jan. 28, 2020, 10 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 28, 2020, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 28, 2020, 8 a.m. 1.0 ppb (1) 0.0 ppb (0) 1.2 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 28, 2020, 7 a.m. 1.0 ppb (1) 0.0 ppb (0) 1.1 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 5.0 μg/m3 (21) 22.0
 
Jan. 28, 2020, 6 a.m. 2.0 ppb (2) 0.0 ppb (0) 1.4 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 4.0 μg/m3 (17) 22.0
 
Jan. 28, 2020, 5 a.m. 2.0 ppb (2) 0.0 ppb (0) 1.6 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 28, 2020, 4 a.m. 2.0 ppb (2) 0.0 ppb (0) 1.8 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 28, 2020, 3 a.m. 2.0 ppb (2) 0.0 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 4.0 μg/m3 (17) 18.0
 
Jan. 28, 2020, 2 a.m. 2.0 ppb (2) 0.0 ppb (0) 2.3 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 28, 2020, 1 a.m. 2.0 ppb (2) 0.0 ppb (0) 2.4 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 28, 2020, midnight 3.0 ppb (3) 0.0 ppb (0) 2.4 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 27, 2020, 11 p.m. 2.0 ppb (2) 0.0 ppb (0) 2.1 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 27, 2020, 10 p.m. 2.0 ppb (2) 0.0 ppb (0) 2.2 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 27, 2020, 9 p.m. 2.0 ppb (2) 0.0 ppb (0) 2.2 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 27, 2020, 8 p.m. 2.0 ppb (2) 0.0 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 4.0 μg/m3 (17) 18.0
 
Jan. 27, 2020, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) 2.1 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 27, 2020, 6 p.m. 2.0 ppb (2) 0.0 ppb (0) 1.8 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 27, 2020, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 27, 2020, 4 p.m. 3.0 ppb (3) 0.0 ppb (0) 2.6 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 27, 2020, 3 p.m. 5.0 ppb (5) 1.0 ppb (1) 4.9 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 27, 2020, 2 p.m. 9.0 ppb (8) 2.0 ppb (2) 9.1 ppb (8) 7.0 ppb (6) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 27, 2020, 1 p.m. 7.0 ppb (6) 1.0 ppb (1) 7.2 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A N/A 13.0
 
Jan. 27, 2020, noon 5.0 ppb (5) 0.0 ppb (0) 5.4 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 27, 2020, 11 a.m. 4.0 ppb (4) 0.0 ppb (0) 4.6 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 27, 2020, 10 a.m. 5.0 ppb (5) 0.0 ppb (0) 5.3 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 27, 2020, 9 a.m. 4.0 ppb (4) 0.0 ppb (0) 4.3 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 27, 2020, 8 a.m. 4.0 ppb (4) 0.0 ppb (0) 4.8 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 27, 2020, 7 a.m. 4.0 ppb (4) 0.0 ppb (0) 4.1 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 27, 2020, 6 a.m. 4.0 ppb (4) 0.0 ppb (0) 4.6 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 27, 2020, 5 a.m. 5.0 ppb (5) 0.0 ppb (0) 5.1 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 27, 2020, 4 a.m. 4.0 ppb (4) 0.0 ppb (0) 4.3 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 27, 2020, 3 a.m. 4.0 ppb (4) 0.0 ppb (0) 4.0 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 27, 2020, 2 a.m. 3.0 ppb (3) 0.0 ppb (0) 3.1 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 27, 2020, 1 a.m. 3.0 ppb (3) 0.0 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 27, 2020, midnight 3.0 ppb (3) 0.0 ppb (0) 2.9 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 26, 2020, 11 p.m. 3.0 ppb (3) 0.0 ppb (0) 2.5 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 26, 2020, 10 p.m. 3.0 ppb (3) 0.0 ppb (0) 2.7 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 26, 2020, 9 p.m. 3.0 ppb (3) 0.0 ppb (0) 2.7 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 26, 2020, 8 p.m. 3.0 ppb (3) 0.0 ppb (0) 2.6 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 3.0 μg/m3 (12) 16.0
 
Jan. 26, 2020, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) 2.2 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 26, 2020, 6 p.m. 2.0 ppb (2) 0.0 ppb (0) 1.6 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 26, 2020, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) 1.6 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 4.0 μg/m3 (17) 22.0
 
Jan. 26, 2020, 4 p.m. 1.0 ppb (1) 0.0 ppb (0) 1.5 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 26, 2020, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) 1.5 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 26, 2020, 2 p.m. 2.0 ppb (2) 0.0 ppb (0) 1.4 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 26, 2020, 1 p.m. 2.0 ppb (2) 0.0 ppb (0) 1.4 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 26, 2020, noon 2.0 ppb (2) 0.0 ppb (0) 1.9 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 4.0 μg/m3 (17) 23.0
 
Jan. 26, 2020, 11 a.m. 2.0 ppb (2) 0.0 ppb (0) 1.6 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 5.0 μg/m3 (21) 23.0
 
Jan. 26, 2020, 10 a.m. 2.0 ppb (2) 0.0 ppb (0) 1.8 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 4.0 μg/m3 (17) 24.0
 
Jan. 26, 2020, 9 a.m. 2.0 ppb (2) 0.0 ppb (0) 1.8 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 2.0 μg/m3 (8) 25.0
 
Jan. 26, 2020, 8 a.m. 1.0 ppb (1) 0.0 ppb (0) 1.1 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 26, 2020, 7 a.m. N/A N/A 1.1 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 6.0 μg/m3 (25) 27.0
 
Jan. 26, 2020, 6 a.m. N/A N/A 1.3 ppb (1) N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 5.0 μg/m3 (21) 25.0
 
Jan. 26, 2020, 5 a.m. N/A N/A 1.1 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 3.0 μg/m3 (12) 27.0
 
Jan. 26, 2020, 4 a.m. 1.0 ppb (1) 0.0 ppb (0) 1.4 ppb (1) 1.0 ppb (1) N/A N/A 36.0 ppb (28) N/A N/A 3.0 μg/m3 (12) 28.0
 
Jan. 26, 2020, 3 a.m. 2.0 ppb (2) 0.0 ppb (0) 1.3 ppb (1) 1.0 ppb (1) N/A N/A 37.0 ppb (28) N/A N/A 3.0 μg/m3 (12) 28.0
 
Jan. 26, 2020, 2 a.m. 2.0 ppb (2) 0.0 ppb (0) 1.2 ppb (1) 2.0 ppb (2) N/A N/A 38.0 ppb (29) N/A N/A 6.0 μg/m3 (25) 29.0
 
Jan. 26, 2020, 1 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 6.0 μg/m3 (25) 29.0
 
Jan. 26, 2020, midnight 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 3.0 μg/m3 (12) 30.0
 
Jan. 25, 2020, 11 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 3.0 μg/m3 (12) 30.0
 
Jan. 25, 2020, 10 p.m. 2.0 ppb (2) 0.0 ppb (0) 1.8 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 4.0 μg/m3 (17) 31.0
 
Jan. 25, 2020, 9 p.m. 2.0 ppb (2) 0.0 ppb (0) 2.1 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 5.0 μg/m3 (21) 30.0
 
Jan. 25, 2020, 8 p.m. 3.0 ppb (3) 0.0 ppb (0) 2.5 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 3.0 μg/m3 (12) 30.0
 
Jan. 25, 2020, 7 p.m. 3.0 ppb (3) 0.0 ppb (0) 2.6 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 5.0 μg/m3 (21) 30.0
 
Jan. 25, 2020, 6 p.m. 3.0 ppb (3) 0.0 ppb (0) 2.8 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 7.0 μg/m3 (29) 31.0
 
Jan. 25, 2020, 5 p.m. 3.0 ppb (3) 0.0 ppb (0) 3.5 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 6.0 μg/m3 (25) 31.0
 
Jan. 25, 2020, 4 p.m. 4.0 ppb (4) 0.0 ppb (0) 3.8 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 25, 2020, 3 p.m. 3.0 ppb (3) 0.0 ppb (0) 3.3 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 13.0 μg/m3 (52) 52.0
 
Jan. 25, 2020, 2 p.m. 3.0 ppb (3) 0.0 ppb (0) 2.6 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 25, 2020, 1 p.m. 2.0 ppb (2) 0.0 ppb (0) 2.9 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 25, 2020, noon 2.0 ppb (2) 0.0 ppb (0) 2.9 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 25, 2020, 11 a.m. 2.0 ppb (2) 0.0 ppb (0) 3.0 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 25, 2020, 10 a.m. 2.0 ppb (2) 0.0 ppb (0) 3.5 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 25, 2020, 9 a.m. 3.0 ppb (3) 0.0 ppb (0) 4.5 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 25, 2020, 8 a.m. 3.0 ppb (3) 0.0 ppb (0) 5.4 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 25, 2020, 7 a.m. 4.0 ppb (4) 0.0 ppb (0) 6.3 ppb (6) 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 25, 2020, 6 a.m. 5.0 ppb (5) 0.0 ppb (0) 7.5 ppb (7) 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 13.0 μg/m3 (52) 52.0
 
Jan. 25, 2020, 5 a.m. 5.0 ppb (5) 0.0 ppb (0) 7.9 ppb (7) 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 25, 2020, 4 a.m. 5.0 ppb (5) 0.0 ppb (0) 8.0 ppb (7) 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 25, 2020, 3 a.m. 6.0 ppb (6) 0.0 ppb (0) 7.9 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 25, 2020, 2 a.m. 6.0 ppb (6) 0.0 ppb (0) 7.9 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 25, 2020, 1 a.m. 5.0 ppb (5) 0.0 ppb (0) 7.0 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 25, 2020, midnight 6.0 ppb (6) 0.0 ppb (0) 7.5 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 24, 2020, 11 p.m. 10.0 ppb (9) 0.0 ppb (0) 11.5 ppb (11) 10.0 ppb (9) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 24, 2020, 10 p.m. 11.0 ppb (10) 0.0 ppb (0) 13.1 ppb (12) 11.0 ppb (10) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 24, 2020, 9 p.m. 9.0 ppb (8) 0.0 ppb (0) 9.6 ppb (9) 9.0 ppb (8) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A N/A 28.0
 
Jan. 24, 2020, 8 p.m. 8.0 ppb (7) 1.0 ppb (1) 8.3 ppb (8) 7.0 ppb (6) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A N/A 30.0
 
Jan. 24, 2020, 7 p.m. 7.0 ppb (6) 1.0 ppb (1) 6.6 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A N/A 31.0
 
Jan. 24, 2020, 6 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 24, 2020, 5 p.m. 8.0 ppb (7) 2.0 ppb (2) 7.8 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 21.0 μg/m3 (69) 69.0
 
Jan. 24, 2020, 4 p.m. 8.0 ppb (7) 2.0 ppb (2) 7.8 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 16.0 μg/m3 (59) 59.0
 
Jan. 24, 2020, 3 p.m. 9.0 ppb (8) 2.0 ppb (2) 9.3 ppb (9) 7.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 16.0 μg/m3 (59) 59.0
 
Jan. 24, 2020, 2 p.m. 13.0 ppb (12) 4.0 ppb (4) 14.2 ppb (13) 9.0 ppb (8) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 18.0 μg/m3 (63) 63.0
 
Jan. 24, 2020, 1 p.m. 16.0 ppb (15) 4.0 ppb (4) 17.6 ppb (16) 13.0 ppb (12) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 20.0 μg/m3 (67) 67.0
 
Jan. 24, 2020, noon 17.0 ppb (16) 1.0 ppb (1) 19.7 ppb (18) 16.0 ppb (15) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 22.0 μg/m3 (71) 71.0
 
Jan. 24, 2020, 11 a.m. 20.0 ppb (19) 0.0 ppb (0) 24.2 ppb (22) 20.0 ppb (19) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 18.0 μg/m3 (63) 63.0
 
Jan. 24, 2020, 10 a.m. 22.0 ppb (20) 0.0 ppb (0) 27.3 ppb (25) 21.0 ppb (19) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 24, 2020, 9 a.m. 17.0 ppb (16) 0.0 ppb (0) 22.9 ppb (21) 17.0 ppb (16) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 24, 2020, 8 a.m. 19.0 ppb (18) 0.0 ppb (0) 24.7 ppb (23) 19.0 ppb (18) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 18.0 μg/m3 (63) 63.0
 
Jan. 24, 2020, 7 a.m. 22.0 ppb (20) 0.0 ppb (0) 26.4 ppb (24) 22.0 ppb (20) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 14.0 μg/m3 (54) 54.0
 
Jan. 24, 2020, 6 a.m. 47.0 ppb (44) 6.0 ppb (6) 49.2 ppb (46) 41.0 ppb (38) N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A 23.0 μg/m3 (73) 73.0
 
Jan. 24, 2020, 5 a.m. 48.0 ppb (44) 6.0 ppb (6) 52.1 ppb (48) 42.0 ppb (39) N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 24.0 μg/m3 (76) 76.0
 
Jan. 24, 2020, 4 a.m. 49.0 ppb (45) 7.0 ppb (6) 53.7 ppb (50) 43.0 ppb (40) N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 23.0 μg/m3 (73) 73.0
 
Jan. 24, 2020, 3 a.m. 43.0 ppb (40) 3.0 ppb (3) 47.0 ppb (44) 40.0 ppb (37) N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 24, 2020, 2 a.m. 27.0 ppb (25) 0.0 ppb (0) 31.5 ppb (29) 27.0 ppb (25) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 24, 2020, 1 a.m. 26.0 ppb (24) 0.0 ppb (0) 30.3 ppb (28) 26.0 ppb (24) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 20.0 μg/m3 (67) 67.0
 
Jan. 24, 2020, midnight 29.0 ppb (27) 0.0 ppb (0) 31.9 ppb (30) 28.0 ppb (26) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 23, 2020, 11 p.m. 27.0 ppb (25) 0.0 ppb (0) 30.8 ppb (29) 27.0 ppb (25) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 23, 2020, 10 p.m. 23.0 ppb (21) 0.0 ppb (0) 25.3 ppb (23) 23.0 ppb (21) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 15.0 μg/m3 (56) 56.0
 
Jan. 23, 2020, 9 p.m. 20.0 ppb (19) 1.0 ppb (1) 21.8 ppb (20) 19.0 ppb (18) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 13.0 μg/m3 (52) 52.0
 
Jan. 23, 2020, 8 p.m. 17.0 ppb (16) 2.0 ppb (2) 18.1 ppb (17) 15.0 ppb (14) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 14.0 μg/m3 (54) 54.0
 
Jan. 23, 2020, 7 p.m. 19.0 ppb (18) 4.0 ppb (4) 20.3 ppb (19) 15.0 ppb (14) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 13.0 μg/m3 (52) 52.0
 
Jan. 23, 2020, 6 p.m. 22.0 ppb (20) 5.0 ppb (5) 23.3 ppb (22) 16.0 ppb (15) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 14.0 μg/m3 (54) 54.0
 
Jan. 23, 2020, 5 p.m. 21.0 ppb (19) 6.0 ppb (6) 22.9 ppb (21) 15.0 ppb (14) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 20.0 μg/m3 (67) 67.0
 
Jan. 23, 2020, 4 p.m. 19.0 ppb (18) 6.0 ppb (6) 20.4 ppb (19) 13.0 ppb (12) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 18.0 μg/m3 (63) 63.0
 
Jan. 23, 2020, 3 p.m. 18.0 ppb (17) 5.0 ppb (5) 19.5 ppb (18) 12.0 ppb (11) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 15.0 μg/m3 (56) 56.0
 
Jan. 23, 2020, 2 p.m. 24.0 ppb (22) 7.0 ppb (6) 25.8 ppb (24) 17.0 ppb (16) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 16.0 μg/m3 (59) 59.0
 
Jan. 23, 2020, 1 p.m. 22.0 ppb (20) 4.0 ppb (4) 24.9 ppb (23) 18.0 ppb (17) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 23, 2020, noon 20.0 ppb (19) 1.0 ppb (1) 22.3 ppb (21) 19.0 ppb (18) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 23, 2020, 11 a.m. 20.0 ppb (19) 0.0 ppb (0) 24.2 ppb (22) 20.0 ppb (19) N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 23, 2020, 10 a.m. 13.0 ppb (12) 0.0 ppb (0) 16.6 ppb (15) 13.0 ppb (12) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 20.0 μg/m3 (67) 67.0
 
Jan. 23, 2020, 9 a.m. 12.0 ppb (11) 0.0 ppb (0) 16.4 ppb (15) 12.0 ppb (11) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 16.0 μg/m3 (59) 59.0
 
Jan. 23, 2020, 8 a.m. 10.0 ppb (9) 0.0 ppb (0) 14.4 ppb (13) 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 23, 2020, 7 a.m. N/A N/A 10.9 ppb (10) N/A N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 18.0 μg/m3 (63) 63.0
 
Jan. 23, 2020, 6 a.m. N/A N/A 14.9 ppb (14) N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A N/A 19.0
 
Jan. 23, 2020, 5 a.m. N/A N/A 16.9 ppb (16) N/A N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 23, 2020, 4 a.m. 12.0 ppb (11) 0.0 ppb (0) 15.2 ppb (14) 12.0 ppb (11) N/A N/A 26.0 ppb (20) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 23, 2020, 3 a.m. 9.0 ppb (8) 0.0 ppb (0) 12.2 ppb (11) 9.0 ppb (8) N/A N/A 30.0 ppb (23) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 23, 2020, 2 a.m. 8.0 ppb (7) 0.0 ppb (0) 9.9 ppb (9) 8.0 ppb (7) N/A N/A 32.0 ppb (25) N/A N/A 18.0 μg/m3 (63) 63.0
 
Jan. 23, 2020, 1 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 15.0 μg/m3 (56) 56.0
 
Jan. 23, 2020, midnight 13.0 ppb (12) 0.0 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 22, 2020, 11 p.m. 14.0 ppb (13) 0.0 ppb (0) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 15.0 μg/m3 (56) 56.0
 
Jan. 22, 2020, 10 p.m. 15.0 ppb (14) 0.0 ppb (0) 16.9 ppb (16) 15.0 ppb (14) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 18.0 μg/m3 (63) 63.0
 
Jan. 22, 2020, 9 p.m. 11.0 ppb (10) 0.0 ppb (0) 13.0 ppb (12) 11.0 ppb (10) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 16.0 μg/m3 (59) 59.0
 
Jan. 22, 2020, 8 p.m. 6.0 ppb (6) 1.0 ppb (1) 6.5 ppb (6) 5.0 ppb (5) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A N/A 29.0
 
Jan. 22, 2020, 7 p.m. 4.0 ppb (4) 1.0 ppb (1) 4.5 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 13.0 μg/m3 (52) 52.0
 
Jan. 22, 2020, 6 p.m. 4.0 ppb (4) 1.0 ppb (1) 4.3 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 13.0 μg/m3 (52) 52.0
 
Jan. 22, 2020, 5 p.m. 5.0 ppb (5) 1.0 ppb (1) 5.8 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 13.0 μg/m3 (52) 52.0