AQSQID: 090050005

Site Name: Cornwall

Location: Litchfield Co, CT

Reporting: True, Located: True

Current AQI: 30.0

Litchfield Co CT, US: 41.833099, -73.303299

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 19, 2019, 3 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.14 ppb (2) 5.0 μg/m3 (5) 3.4 μg/m3 (14) 30.0
 
Jan. 19, 2019, 2 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.13 ppb (1) 5.0 μg/m3 (5) 2.9 μg/m3 (12) 29.0
 
Jan. 19, 2019, 1 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.14 ppb (2) 5.0 μg/m3 (5) 3.5 μg/m3 (15) 29.0
 
Jan. 19, 2019, noon N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.13 ppb (1) 4.0 μg/m3 (4) 2.8 μg/m3 (12) 28.0
 
Jan. 19, 2019, 11 a.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.14 ppb (2) 4.0 μg/m3 (4) 3.1 μg/m3 (13) 28.0
 
Jan. 19, 2019, 10 a.m. N/A 0.0 ppb (0) 1.5 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.14 ppb (2) 8.0 μg/m3 (7) 5.5 μg/m3 (23) 27.0
 
Jan. 19, 2019, 9 a.m. N/A 0.1 ppb (0) 2.5 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.16 ppb (2) 9.0 μg/m3 (8) 6.2 μg/m3 (26) 26.0
 
Jan. 19, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.16 ppb (2) 9.0 μg/m3 (8) 6.6 μg/m3 (28) 28.0
 
Jan. 19, 2019, 7 a.m. N/A 0.0 ppb (0) 3.2 ppb (3) N/A N/A 0.0 ppb (0) 29.0 ppb (22) N/A 10.0 μg/m3 (9) 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2019, 6 a.m. N/A 0.0 ppb (0) 3.1 ppb (3) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.16 ppb (2) 10.0 μg/m3 (9) 7.2 μg/m3 (30) 30.0
 
Jan. 19, 2019, 5 a.m. N/A 0.0 ppb (0) 3.3 ppb (3) N/A N/A 0.0 ppb (0) N/A 0.16 ppb (2) 10.0 μg/m3 (9) 7.1 μg/m3 (30) 30.0
 
Jan. 19, 2019, 4 a.m. N/A 0.0 ppb (0) 3.7 ppb (3) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.16 ppb (2) 10.0 μg/m3 (9) 7.3 μg/m3 (30) 30.0
 
Jan. 19, 2019, 3 a.m. N/A 0.0 ppb (0) 4.3 ppb (4) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.17 ppb (2) 10.0 μg/m3 (9) 6.9 μg/m3 (29) 29.0
 
Jan. 19, 2019, 2 a.m. N/A 0.0 ppb (0) 5.3 ppb (5) N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.19 ppb (2) 10.0 μg/m3 (9) 7.2 μg/m3 (30) 30.0
 
Jan. 19, 2019, 1 a.m. N/A 0.0 ppb (0) 6.6 ppb (6) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.21 ppb (2) 12.0 μg/m3 (11) 8.1 μg/m3 (34) 34.0
 
Jan. 19, 2019, midnight N/A 0.0 ppb (0) 7.0 ppb (6) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.2 ppb (2) 12.0 μg/m3 (11) 7.9 μg/m3 (33) 33.0
 
Jan. 18, 2019, 11 p.m. N/A 0.0 ppb (0) 6.7 ppb (6) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.2 ppb (2) 10.0 μg/m3 (9) 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2019, 10 p.m. N/A 0.0 ppb (0) 5.7 ppb (5) N/A N/A N/A 27.0 ppb (21) 0.19 ppb (2) 9.0 μg/m3 (8) 5.8 μg/m3 (24) 24.0
 
Jan. 18, 2019, 9 p.m. N/A 0.0 ppb (0) 3.9 ppb (4) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.18 ppb (2) 7.0 μg/m3 (6) 4.8 μg/m3 (20) 23.0
 
Jan. 18, 2019, 8 p.m. N/A 0.0 ppb (0) 3.2 ppb (3) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.17 ppb (2) 8.0 μg/m3 (7) 5.0 μg/m3 (21) 24.0
 
Jan. 18, 2019, 7 p.m. N/A 0.0 ppb (0) 2.6 ppb (2) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.17 ppb (2) 7.0 μg/m3 (6) 4.5 μg/m3 (19) 25.0
 
Jan. 18, 2019, 6 p.m. N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.15 ppb (2) 7.0 μg/m3 (6) 4.0 μg/m3 (17) 27.0
 
Jan. 18, 2019, 5 p.m. N/A 0.0 ppb (0) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.15 ppb (2) 6.0 μg/m3 (5) 3.4 μg/m3 (14) 28.0
 
Jan. 18, 2019, 4 p.m. N/A 0.1 ppb (0) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.15 ppb (2) 8.0 μg/m3 (7) 4.0 μg/m3 (17) 28.0
 
Jan. 18, 2019, 3 p.m. N/A 0.1 ppb (0) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.16 ppb (2) 9.0 μg/m3 (8) 4.5 μg/m3 (19) 28.0
 
Jan. 18, 2019, 2 p.m. N/A 0.0 ppb (0) 2.4 ppb (2) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.16 ppb (2) 8.0 μg/m3 (7) 4.4 μg/m3 (18) 28.0
 
Jan. 18, 2019, 1 p.m. N/A 0.0 ppb (0) 2.5 ppb (2) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.16 ppb (2) 8.0 μg/m3 (7) 4.6 μg/m3 (19) 28.0
 
Jan. 18, 2019, noon N/A 0.0 ppb (0) 2.3 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.15 ppb (2) 8.0 μg/m3 (7) 4.2 μg/m3 (18) 28.0
 
Jan. 18, 2019, 11 a.m. N/A 0.0 ppb (0) 2.9 ppb (3) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.16 ppb (2) 8.0 μg/m3 (7) 4.4 μg/m3 (18) 27.0
 
Jan. 18, 2019, 10 a.m. N/A 0.0 ppb (0) 2.9 ppb (3) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.15 ppb (2) 9.0 μg/m3 (8) 4.3 μg/m3 (18) 27.0
 
Jan. 18, 2019, 9 a.m. N/A 0.1 ppb (0) 2.9 ppb (3) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.16 ppb (2) 8.0 μg/m3 (7) 4.2 μg/m3 (18) 27.0
 
Jan. 18, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.15 ppb (2) 9.0 μg/m3 (8) 4.5 μg/m3 (19) 28.0
 
Jan. 18, 2019, 7 a.m. N/A 0.0 ppb (0) 4.0 ppb (4) N/A N/A 0.0 ppb (0) 34.0 ppb (26) N/A 9.0 μg/m3 (8) 4.7 μg/m3 (20) 26.0
 
Jan. 18, 2019, 6 a.m. N/A 0.0 ppb (0) 5.6 ppb (5) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.17 ppb (2) 10.0 μg/m3 (9) 4.9 μg/m3 (20) 25.0
 
Jan. 18, 2019, 5 a.m. N/A 0.0 ppb (0) 6.2 ppb (6) N/A N/A 0.0 ppb (0) N/A 0.18 ppb (2) 11.0 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2019, 4 a.m. N/A 0.0 ppb (0) 8.7 ppb (8) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.19 ppb (2) 12.0 μg/m3 (11) 5.7 μg/m3 (24) 24.0
 
Jan. 18, 2019, 3 a.m. N/A 0.0 ppb (0) 8.6 ppb (8) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.2 ppb (2) 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2019, 2 a.m. N/A 0.0 ppb (0) 8.6 ppb (8) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.2 ppb (2) 15.0 μg/m3 (14) 6.4 μg/m3 (27) 27.0
 
Jan. 18, 2019, 1 a.m. N/A 0.0 ppb (0) 6.0 ppb (6) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.18 ppb (2) 15.0 μg/m3 (14) 6.5 μg/m3 (27) 27.0
 
Jan. 18, 2019, midnight N/A 0.0 ppb (0) 2.4 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.15 ppb (2) 15.0 μg/m3 (14) 5.2 μg/m3 (22) 27.0
 
Jan. 17, 2019, 11 p.m. N/A 0.0 ppb (0) 1.6 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.15 ppb (2) 12.0 μg/m3 (11) 4.4 μg/m3 (18) 28.0
 
Jan. 17, 2019, 10 p.m. N/A 0.0 ppb (0) 1.1 ppb (1) N/A N/A N/A 38.0 ppb (29) 0.13 ppb (1) 11.0 μg/m3 (10) 3.3 μg/m3 (14) 29.0
 
Jan. 17, 2019, 9 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.15 ppb (2) 9.0 μg/m3 (8) 3.2 μg/m3 (13) 29.0
 
Jan. 17, 2019, 8 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.14 ppb (2) 8.0 μg/m3 (7) 2.9 μg/m3 (12) 29.0
 
Jan. 17, 2019, 7 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) N/A 8.0 μg/m3 (7) 2.9 μg/m3 (12) 30.0
 
Jan. 17, 2019, 6 p.m. N/A 0.1 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) N/A 8.0 μg/m3 (7) 3.0 μg/m3 (12) 30.0
 
Jan. 17, 2019, 5 p.m. N/A 0.1 ppb (0) 1.1 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) N/A 5.0 μg/m3 (5) 1.7 μg/m3 (7) 30.0
 
Jan. 17, 2019, 4 p.m. N/A 0.1 ppb (0) 1.1 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) N/A 5.0 μg/m3 (5) 2.2 μg/m3 (9) 29.0
 
Jan. 17, 2019, 3 p.m. N/A 0.1 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) N/A 8.0 μg/m3 (7) 3.2 μg/m3 (13) 29.0
 
Jan. 17, 2019, 2 p.m. N/A 0.1 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) N/A 8.0 μg/m3 (7) 3.4 μg/m3 (14) 28.0
 
Jan. 17, 2019, 1 p.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.13 ppb (1) 8.0 μg/m3 (7) 1.8 μg/m3 (8) 29.0
 
Jan. 17, 2019, noon N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.12 ppb (1) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 29.0
 
Jan. 17, 2019, 11 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.12 ppb (1) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 29.0
 
Jan. 17, 2019, 10 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.12 ppb (1) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 28.0
 
Jan. 17, 2019, 9 a.m. N/A 0.1 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.12 ppb (1) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 28.0
 
Jan. 17, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.12 ppb (1) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 27.0
 
Jan. 17, 2019, 7 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 35.0 ppb (27) N/A 0.0 μg/m3 (0) 0.0 μg/m3 (0) 27.0
 
Jan. 17, 2019, 6 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.18 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 28.0
 
Jan. 17, 2019, 5 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) N/A 0.13 ppb (1) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 1.0
 
Jan. 17, 2019, 4 a.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.13 ppb (1) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 29.0
 
Jan. 17, 2019, 3 a.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.13 ppb (1) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 29.0
 
Jan. 17, 2019, 2 a.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.13 ppb (1) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 30.0
 
Jan. 17, 2019, 1 a.m. N/A 0.0 ppb (0) 1.5 ppb (1) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.14 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 25.0
 
Jan. 17, 2019, midnight N/A 0.0 ppb (0) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.14 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 21.0
 
Jan. 16, 2019, 11 p.m. N/A 0.0 ppb (0) 1.5 ppb (1) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.14 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 22.0
 
Jan. 16, 2019, 10 p.m. N/A 0.0 ppb (0) 1.7 ppb (2) N/A N/A N/A 28.0 ppb (22) 0.14 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 22.0
 
Jan. 16, 2019, 9 p.m. N/A 0.0 ppb (0) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.15 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 22.0
 
Jan. 16, 2019, 8 p.m. N/A 0.1 ppb (0) 2.3 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.16 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 22.0
 
Jan. 16, 2019, 7 p.m. N/A 0.2 ppb (0) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.18 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 22.0
 
Jan. 16, 2019, 6 p.m. N/A 0.4 ppb (0) 3.4 ppb (3) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.18 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 22.0
 
Jan. 16, 2019, 5 p.m. N/A 0.5 ppb (0) 4.9 ppb (5) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.19 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 22.0
 
Jan. 16, 2019, 4 p.m. N/A 0.4 ppb (0) 5.5 ppb (5) N/A N/A 1.0 ppb (1) 27.0 ppb (21) 0.19 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 21.0
 
Jan. 16, 2019, 3 p.m. N/A 0.3 ppb (0) 5.4 ppb (5) N/A N/A 1.0 ppb (1) 27.0 ppb (21) 0.19 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 21.0
 
Jan. 16, 2019, 2 p.m. N/A 0.2 ppb (0) 5.0 ppb (5) N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.18 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 22.0
 
Jan. 16, 2019, 1 p.m. N/A 0.0 ppb (0) 5.1 ppb (5) N/A N/A 1.0 ppb (1) 29.0 ppb (22) 0.18 ppb (2) 1.0 μg/m3 (1) 0.5 μg/m3 (2) 22.0
 
Jan. 16, 2019, noon N/A 0.0 ppb (0) 5.3 ppb (5) N/A N/A 1.0 ppb (1) 29.0 ppb (22) 0.17 ppb (2) 1.0 μg/m3 (1) 1.5 μg/m3 (6) 22.0
 
Jan. 16, 2019, 11 a.m. N/A 0.0 ppb (0) 5.8 ppb (5) N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.19 ppb (2) 0.0 μg/m3 (0) 0.3 μg/m3 (1) 22.0
 
Jan. 16, 2019, 10 a.m. N/A 0.0 ppb (0) 6.4 ppb (6) N/A N/A 1.0 ppb (1) 25.0 ppb (19) 0.19 ppb (2) 0.0 μg/m3 (0) 0.3 μg/m3 (1) 19.0
 
Jan. 16, 2019, 9 a.m. N/A 0.2 ppb (0) 6.2 ppb (6) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.21 ppb (2) 1.0 μg/m3 (1) 0.6 μg/m3 (2) 19.0
 
Jan. 16, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.19 ppb (2) 0.0 μg/m3 (0) 0.1 μg/m3 (0) 20.0
 
Jan. 16, 2019, 7 a.m. N/A 0.0 ppb (0) 3.3 ppb (3) N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A 0.0 μg/m3 (0) 0.4 μg/m3 (2) 23.0
 
Jan. 16, 2019, 6 a.m. N/A 0.0 ppb (0) 3.3 ppb (3) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.17 ppb (2) 0.0 μg/m3 (0) 0.4 μg/m3 (2) 23.0
 
Jan. 16, 2019, 5 a.m. N/A 0.0 ppb (0) 3.1 ppb (3) N/A N/A 0.0 ppb (0) N/A 0.17 ppb (2) 0.0 μg/m3 (0) 0.2 μg/m3 (1) 3.0
 
Jan. 16, 2019, 4 a.m. N/A 0.0 ppb (0) 3.1 ppb (3) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.16 ppb (2) 1.0 μg/m3 (1) 0.6 μg/m3 (2) 25.0
 
Jan. 16, 2019, 3 a.m. N/A 0.0 ppb (0) 3.1 ppb (3) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.16 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 24.0
 
Jan. 16, 2019, 2 a.m. N/A 0.0 ppb (0) 3.1 ppb (3) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.16 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 24.0
 
Jan. 16, 2019, 1 a.m. N/A 0.0 ppb (0) 3.5 ppb (3) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.17 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 23.0
 
Jan. 16, 2019, midnight N/A 0.0 ppb (0) 3.3 ppb (3) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.16 ppb (2) 0.0 μg/m3 (0) 0.1 μg/m3 (0) 23.0
 
Jan. 15, 2019, 11 p.m. N/A 0.0 ppb (0) 3.3 ppb (3) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.17 ppb (2) 0.0 μg/m3 (0) 0.3 μg/m3 (1) 23.0
 
Jan. 15, 2019, 10 p.m. N/A 0.0 ppb (0) 3.6 ppb (3) N/A N/A N/A 30.0 ppb (23) 0.17 ppb (2) 0.0 μg/m3 (0) 0.1 μg/m3 (0) 23.0
 
Jan. 15, 2019, 9 p.m. N/A 0.0 ppb (0) 3.3 ppb (3) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.16 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 24.0
 
Jan. 15, 2019, 8 p.m. N/A 0.1 ppb (0) 3.7 ppb (3) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.16 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 24.0
 
Jan. 15, 2019, 7 p.m. N/A 0.4 ppb (0) 4.5 ppb (4) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.18 ppb (2) 1.0 μg/m3 (1) 1.0 μg/m3 (4) 23.0
 
Jan. 15, 2019, 6 p.m. N/A 0.6 ppb (1) 4.6 ppb (4) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.17 ppb (2) N/A 1.5 μg/m3 (6) 23.0
 
Jan. 15, 2019, 5 p.m. N/A 0.5 ppb (0) 3.7 ppb (3) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.17 ppb (2) 1.0 μg/m3 (1) 0.7 μg/m3 (3) 24.0
 
Jan. 15, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.16 ppb (2) 0.0 μg/m3 (0) 0.1 μg/m3 (0) 26.0
 
Jan. 15, 2019, 3 p.m. N/A 0.2 ppb (0) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.15 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 26.0
 
Jan. 15, 2019, 2 p.m. N/A 0.1 ppb (0) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (26) N/A 0.0 μg/m3 (0) 0.1 μg/m3 (0) 26.0
 
Jan. 15, 2019, 1 p.m. N/A 0.1 ppb (0) 2.4 ppb (2) N/A N/A N/A 33.0 ppb (25) 0.15 ppb (2) 0.0 μg/m3 (0) 0.2 μg/m3 (1) 25.0
 
Jan. 15, 2019, noon N/A 0.0 ppb (0) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.15 ppb (2) 0.0 μg/m3 (0) 0.1 μg/m3 (0) 24.0
 
Jan. 15, 2019, 11 a.m. N/A 0.0 ppb (0) 2.6 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.15 ppb (2) 1.0 μg/m3 (1) 0.6 μg/m3 (2) 25.0
 
Jan. 15, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.15 ppb (2) 1.0 μg/m3 (1) 0.5 μg/m3 (2) 25.0
 
Jan. 15, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.15 ppb (2) 1.0 μg/m3 (1) 0.6 μg/m3 (2) 26.0
 
Jan. 15, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.15 ppb (2) 0.0 μg/m3 (0) 0.2 μg/m3 (1) 27.0
 
Jan. 15, 2019, 7 a.m. N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (26) N/A 0.0 μg/m3 (0) 0.1 μg/m3 (0) 26.0
 
Jan. 15, 2019, 6 a.m. N/A 0.0 ppb (0) 2.8 ppb (3) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.16 ppb (2) 1.0 μg/m3 (1) 0.8 μg/m3 (3) 25.0
 
Jan. 15, 2019, 5 a.m. N/A 0.0 ppb (0) 3.2 ppb (3) N/A N/A 0.0 ppb (0) N/A 0.17 ppb (2) 1.0 μg/m3 (1) 0.4 μg/m3 (2) 3.0
 
Jan. 15, 2019, 4 a.m. N/A 0.0 ppb (0) 3.1 ppb (3) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.17 ppb (2) 1.0 μg/m3 (1) 0.8 μg/m3 (3) 25.0
 
Jan. 15, 2019, 3 a.m. N/A 0.0 ppb (0) 2.3 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.16 ppb (2) 1.0 μg/m3 (1) 0.7 μg/m3 (3) 26.0
 
Jan. 15, 2019, 2 a.m. N/A 0.0 ppb (0) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.14 ppb (2) 0.0 μg/m3 (0) 0.4 μg/m3 (2) 27.0
 
Jan. 15, 2019, 1 a.m. N/A 0.0 ppb (0) 1.1 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.14 ppb (2) 0.0 μg/m3 (0) 0.3 μg/m3 (1) 28.0
 
Jan. 15, 2019, midnight N/A 0.0 ppb (0) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.13 ppb (1) 0.0 μg/m3 (0) 0.1 μg/m3 (0) 29.0
 
Jan. 14, 2019, 11 p.m. N/A 0.0 ppb (0) 1.3 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.13 ppb (1) 0.0 μg/m3 (0) 0.1 μg/m3 (0) 28.0
 
Jan. 14, 2019, 10 p.m. N/A 0.0 ppb (0) 1.2 ppb (1) N/A N/A N/A 37.0 ppb (28) 0.14 ppb (2) 1.0 μg/m3 (1) 0.3 μg/m3 (1) 28.0
 
Jan. 14, 2019, 9 p.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.14 ppb (2) 0.0 μg/m3 (0) 0.1 μg/m3 (0) 30.0
 
Jan. 14, 2019, 8 p.m. N/A 0.0 ppb (0) 1.3 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.15 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 28.0
 
Jan. 14, 2019, 7 p.m. N/A 0.1 ppb (0) 1.3 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.15 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 30.0
 
Jan. 14, 2019, 6 p.m. N/A 0.2 ppb (0) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.15 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 29.0
 
Jan. 14, 2019, 5 p.m. N/A 0.4 ppb (0) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.15 ppb (2) 0.0 μg/m3 (0) 0.1 μg/m3 (0) 27.0
 
Jan. 14, 2019, 4 p.m. N/A 0.4 ppb (0) 2.3 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.18 ppb (2) 2.0 μg/m3 (2) 1.1 μg/m3 (5) 26.0
 
Jan. 14, 2019, 3 p.m. N/A 0.2 ppb (0) 1.5 ppb (1) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.15 ppb (2) 7.0 μg/m3 (6) 3.9 μg/m3 (16) 26.0
 
Jan. 14, 2019, 2 p.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.15 ppb (2) 6.0 μg/m3 (5) 3.7 μg/m3 (15) 28.0
 
Jan. 14, 2019, 1 p.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.14 ppb (2) 7.0 μg/m3 (6) 3.9 μg/m3 (16) 28.0
 
Jan. 14, 2019, noon N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.14 ppb (2) 7.0 μg/m3 (6) 4.2 μg/m3 (18) 27.0
 
Jan. 14, 2019, 11 a.m. N/A 0.0 ppb (0) 1.4 ppb (1) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.16 ppb (2) 9.0 μg/m3 (8) 4.9 μg/m3 (20) 25.0
 
Jan. 14, 2019, 10 a.m. N/A 0.0 ppb (0) 1.1 ppb (1) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.15 ppb (2) 9.0 μg/m3 (8) 4.7 μg/m3 (20) 26.0
 
Jan. 14, 2019, 9 a.m. N/A 0.0 ppb (0) 1.1 ppb (1) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.16 ppb (2) 8.0 μg/m3 (7) 4.9 μg/m3 (20) 25.0
 
Jan. 14, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.15 ppb (2) 8.0 μg/m3 (7) 4.6 μg/m3 (19) 27.0
 
Jan. 14, 2019, 7 a.m. N/A 0.0 ppb (0) 1.6 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (27) N/A 9.0 μg/m3 (8) 5.1 μg/m3 (21) 27.0
 
Jan. 14, 2019, 6 a.m. N/A 0.0 ppb (0) 1.6 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.15 ppb (2) 9.0 μg/m3 (8) 4.9 μg/m3 (20) 27.0
 
Jan. 14, 2019, 5 a.m. N/A 0.0 ppb (0) 1.8 ppb (2) N/A N/A 0.0 ppb (0) N/A 0.16 ppb (2) 8.0 μg/m3 (7) 4.3 μg/m3 (18) 18.0
 
Jan. 14, 2019, 4 a.m. N/A 0.0 ppb (0) 1.5 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.15 ppb (2) 8.0 μg/m3 (7) 4.3 μg/m3 (18) 27.0
 
Jan. 14, 2019, 3 a.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.15 ppb (2) 8.0 μg/m3 (7) 4.0 μg/m3 (17) 28.0
 
Jan. 14, 2019, 2 a.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.14 ppb (2) 7.0 μg/m3 (6) 3.9 μg/m3 (16) 28.0
 
Jan. 14, 2019, 1 a.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.14 ppb (2) 8.0 μg/m3 (7) 3.7 μg/m3 (15) 28.0
 
Jan. 14, 2019, midnight N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.14 ppb (2) 8.0 μg/m3 (7) 3.8 μg/m3 (16) 28.0
 
Jan. 13, 2019, 11 p.m. N/A 0.0 ppb (0) 1.5 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.16 ppb (2) 8.0 μg/m3 (7) 4.4 μg/m3 (18) 27.0
 
Jan. 13, 2019, 10 p.m. N/A 0.0 ppb (0) 1.5 ppb (1) N/A N/A N/A 36.0 ppb (28) 0.15 ppb (2) 11.0 μg/m3 (10) 3.8 μg/m3 (16) 28.0
 
Jan. 13, 2019, 9 p.m. N/A 0.0 ppb (0) 1.2 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.14 ppb (2) 10.0 μg/m3 (9) 3.8 μg/m3 (16) 28.0
 
Jan. 13, 2019, 8 p.m. N/A 0.0 ppb (0) 1.1 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.14 ppb (2) 8.0 μg/m3 (7) 3.8 μg/m3 (16) 28.0
 
Jan. 13, 2019, 7 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.14 ppb (2) 8.0 μg/m3 (7) 3.2 μg/m3 (13) 28.0
 
Jan. 13, 2019, 6 p.m. N/A 0.1 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.13 ppb (1) 7.0 μg/m3 (6) 3.3 μg/m3 (14) 28.0
 
Jan. 13, 2019, 5 p.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.14 ppb (2) 8.0 μg/m3 (7) 3.2 μg/m3 (13) 28.0
 
Jan. 13, 2019, 4 p.m. N/A 0.1 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.13 ppb (1) 7.0 μg/m3 (6) 3.1 μg/m3 (13) 28.0
 
Jan. 13, 2019, 3 p.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.13 ppb (1) 8.0 μg/m3 (7) 3.1 μg/m3 (13) 28.0
 
Jan. 13, 2019, 2 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.13 ppb (1) 5.0 μg/m3 (5) 2.6 μg/m3 (11) 29.0
 
Jan. 13, 2019, 1 p.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.14 ppb (2) 8.0 μg/m3 (7) 2.8 μg/m3 (12) 29.0
 
Jan. 13, 2019, noon N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.13 ppb (1) 6.0 μg/m3 (5) 2.7 μg/m3 (11) 29.0
 
Jan. 13, 2019, 11 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.13 ppb (1) 6.0 μg/m3 (5) 2.8 μg/m3 (12) 29.0
 
Jan. 13, 2019, 10 a.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.13 ppb (1) 6.0 μg/m3 (5) 2.7 μg/m3 (11) 29.0
 
Jan. 13, 2019, 9 a.m. N/A 0.1 ppb (0) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.13 ppb (1) 7.0 μg/m3 (6) 2.8 μg/m3 (12) 29.0
 
Jan. 13, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.12 ppb (1) 6.0 μg/m3 (5) 2.9 μg/m3 (12) 29.0
 
Jan. 13, 2019, 7 a.m. N/A 0.0 ppb (0) 1.6 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) N/A 9.0 μg/m3 (8) 3.7 μg/m3 (15) 28.0
 
Jan. 13, 2019, 6 a.m. N/A 0.0 ppb (0) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.13 ppb (1) 13.0 μg/m3 (12) 4.0 μg/m3 (17) 28.0
 
Jan. 13, 2019, 5 a.m. N/A 0.0 ppb (0) 1.4 ppb (1) N/A N/A 0.0 ppb (0) N/A 0.14 ppb (2) 10.0 μg/m3 (9) 3.7 μg/m3 (15) 15.0
 
Jan. 13, 2019, 4 a.m. N/A 0.0 ppb (0) 1.2 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.13 ppb (1) 9.0 μg/m3 (8) 3.3 μg/m3 (14) 29.0
 
Jan. 13, 2019, 3 a.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.12 ppb (1) 8.0 μg/m3 (7) 2.9 μg/m3 (12) 30.0
 
Jan. 13, 2019, 2 a.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.12 ppb (1) 9.0 μg/m3 (8) 2.6 μg/m3 (11) 30.0
 
Jan. 13, 2019, 1 a.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.13 ppb (1) 8.0 μg/m3 (7) 2.9 μg/m3 (12) 31.0
 
Jan. 13, 2019, midnight N/A 0.0 ppb (0) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.13 ppb (1) 9.0 μg/m3 (8) 3.1 μg/m3 (13) 30.0
 
Jan. 12, 2019, 11 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.13 ppb (1) 10.0 μg/m3 (9) 3.1 μg/m3 (13) 30.0
 
Jan. 12, 2019, 10 p.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A N/A N/A 40.0 ppb (31) 0.12 ppb (1) 9.0 μg/m3 (8) 3.0 μg/m3 (12) 31.0
 
Jan. 12, 2019, 9 p.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.13 ppb (1) 9.0 μg/m3 (8) 3.2 μg/m3 (13) 30.0
 
Jan. 12, 2019, 8 p.m. N/A 0.0 ppb (0) 1.2 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.13 ppb (1) 10.0 μg/m3 (9) 3.1 μg/m3 (13) 30.0
 
Jan. 12, 2019, 7 p.m. N/A 0.1 ppb (0) 1.4 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.13 ppb (1) 8.0 μg/m3 (7) 3.4 μg/m3 (14) 29.0
 
Jan. 12, 2019, 6 p.m. N/A 0.1 ppb (0) 1.2 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.13 ppb (1) 7.0 μg/m3 (6) 3.2 μg/m3 (13) 30.0
 
Jan. 12, 2019, 5 p.m. N/A 0.1 ppb (0) 1.1 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.13 ppb (1) 6.0 μg/m3 (5) 3.1 μg/m3 (13) 29.0
 
Jan. 12, 2019, 4 p.m. N/A 0.1 ppb (0) 1.3 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.13 ppb (1) 6.0 μg/m3 (5) 3.2 μg/m3 (13) 29.0