ID: 1021

AQSQID: 090050005

Site Name: Cornwall

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

Updated: Aug. 4, 2020, 7:41 a.m.

Location: W Cornwall (E Cornwall), CT

Reporting: True, Located: True

Current AQI: 21.0

W Cornwall (E Cornwall) CT, US: 41.833099, -73.303299

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Aug. 4, 2020, 7 a.m. N/A 1.0 ppb (1) 2.6 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (26) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 26.0
 
Aug. 4, 2020, 6 a.m. N/A 1.0 ppb (1) 2.4 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.13 ppb (1) 12.0 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
Aug. 4, 2020, 5 a.m. N/A 1.0 ppb (1) 2.6 ppb (2) N/A N/A 0.0 ppb (0) N/A 0.15 ppb (2) 8.0 μg/m3 (7) 4.7 μg/m3 (20) 20.0
 
Aug. 4, 2020, 4 a.m. N/A 1.0 ppb (1) 2.8 ppb (3) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.15 ppb (2) 9.0 μg/m3 (8) 5.1 μg/m3 (21) 29.0
 
Aug. 4, 2020, 3 a.m. N/A 1.0 ppb (1) 2.9 ppb (3) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.16 ppb (2) 12.0 μg/m3 (11) 5.6 μg/m3 (23) 28.0
 
Aug. 4, 2020, 2 a.m. N/A 1.0 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 45.0 ppb (35) 0.13 ppb (1) 9.0 μg/m3 (8) 4.6 μg/m3 (19) 35.0
 
Aug. 4, 2020, 1 a.m. N/A 1.0 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 45.0 ppb (35) 0.13 ppb (1) 7.0 μg/m3 (6) 4.3 μg/m3 (18) 35.0
 
Aug. 4, 2020, midnight N/A 1.0 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 46.0 ppb (35) 0.12 ppb (1) 7.0 μg/m3 (6) 4.2 μg/m3 (18) 35.0
 
Aug. 3, 2020, 11 p.m. N/A 1.1 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 46.0 ppb (35) 0.12 ppb (1) 7.0 μg/m3 (6) 3.9 μg/m3 (16) 35.0
 
Aug. 3, 2020, 10 p.m. N/A 1.1 ppb (1) 1.9 ppb (2) N/A N/A N/A 46.0 ppb (35) 0.12 ppb (1) 6.0 μg/m3 (5) 3.8 μg/m3 (16) 35.0
 
Aug. 3, 2020, 9 p.m. N/A 1.1 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 47.0 ppb (36) 0.11 ppb (1) 7.0 μg/m3 (6) 3.6 μg/m3 (15) 36.0
 
Aug. 3, 2020, 8 p.m. N/A 1.1 ppb (1) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 47.0 ppb (36) 0.11 ppb (1) 8.0 μg/m3 (7) 3.6 μg/m3 (15) 36.0
 
Aug. 3, 2020, 7 p.m. N/A 1.1 ppb (1) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 46.0 ppb (35) 0.12 ppb (1) 6.0 μg/m3 (5) 3.5 μg/m3 (15) 35.0
 
Aug. 3, 2020, 6 p.m. N/A 1.1 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 45.0 ppb (35) 0.12 ppb (1) 5.0 μg/m3 (5) 3.2 μg/m3 (13) 35.0
 
Aug. 3, 2020, 5 p.m. N/A 1.1 ppb (1) 2.3 ppb (2) N/A N/A 0.0 ppb (0) 44.0 ppb (34) 0.14 ppb (2) 6.0 μg/m3 (5) 3.4 μg/m3 (14) 34.0
 
Aug. 3, 2020, 4 p.m. N/A 1.1 ppb (1) 2.3 ppb (2) N/A N/A 0.0 ppb (0) 42.0 ppb (32) 0.13 ppb (1) N/A N/A 32.0
 
Aug. 3, 2020, 3 p.m. N/A 1.1 ppb (1) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.14 ppb (2) 7.0 μg/m3 (6) 3.3 μg/m3 (14) 30.0
 
Aug. 3, 2020, 2 p.m. N/A 1.1 ppb (1) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.14 ppb (2) 7.0 μg/m3 (6) 3.4 μg/m3 (14) 28.0
 
Aug. 3, 2020, 1 p.m. N/A 1.2 ppb (1) 2.3 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.12 ppb (1) 7.0 μg/m3 (6) 3.6 μg/m3 (15) 27.0
 
Aug. 3, 2020, noon N/A 1.1 ppb (1) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.11 ppb (1) 7.0 μg/m3 (6) 3.6 μg/m3 (15) 26.0
 
Aug. 3, 2020, 11 a.m. N/A 1.1 ppb (1) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.12 ppb (1) 8.0 μg/m3 (7) 3.8 μg/m3 (16) 26.0
 
Aug. 3, 2020, 10 a.m. N/A 1.1 ppb (1) 2.3 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.11 ppb (1) 10.0 μg/m3 (9) 4.3 μg/m3 (18) 27.0
 
Aug. 3, 2020, 9 a.m. N/A N/A N/A 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
 
Aug. 3, 2020, 8 a.m. N/A 1.0 ppb (1) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.13 ppb (1) 10.0 μg/m3 (9) 4.9 μg/m3 (20) 28.0
 
Aug. 3, 2020, 7 a.m. N/A 1.1 ppb (1) 2.3 ppb (2) N/A N/A 0.0 ppb (0) 36.0 ppb (28) N/A 13.0 μg/m3 (12) 6.1 μg/m3 (25) 28.0
 
Aug. 3, 2020, 6 a.m. N/A 1.1 ppb (1) 2.9 ppb (3) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.14 ppb (2) 21.0 μg/m3 (19) 10.1 μg/m3 (42) 42.0
 
Aug. 3, 2020, 5 a.m. N/A 1.0 ppb (1) 3.6 ppb (3) N/A N/A 0.0 ppb (0) N/A 0.16 ppb (2) 27.0 μg/m3 (25) 12.5 μg/m3 (51) 51.0
 
Aug. 3, 2020, 4 a.m. N/A 1.0 ppb (1) 3.6 ppb (3) N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.15 ppb (2) 22.0 μg/m3 (20) 11.2 μg/m3 (47) 47.0
 
Aug. 3, 2020, 3 a.m. N/A 1.1 ppb (1) 3.3 ppb (3) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.16 ppb (2) 21.0 μg/m3 (19) 10.4 μg/m3 (43) 43.0
 
Aug. 3, 2020, 2 a.m. N/A 1.1 ppb (1) 2.9 ppb (3) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.14 ppb (2) 24.0 μg/m3 (22) 11.8 μg/m3 (49) 49.0
 
Aug. 3, 2020, 1 a.m. N/A 1.0 ppb (1) 2.8 ppb (3) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.14 ppb (2) 34.0 μg/m3 (31) 15.3 μg/m3 (57) 57.0
 
Aug. 3, 2020, midnight N/A 1.0 ppb (1) 2.8 ppb (3) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.13 ppb (1) 32.0 μg/m3 (29) 14.8 μg/m3 (56) 56.0
 
Aug. 2, 2020, 11 p.m. N/A 1.1 ppb (1) 2.6 ppb (2) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.12 ppb (1) 28.0 μg/m3 (25) 13.4 μg/m3 (53) 53.0
 
Aug. 2, 2020, 10 p.m. N/A 1.1 ppb (1) 2.3 ppb (2) N/A N/A N/A 32.0 ppb (25) 0.11 ppb (1) 24.0 μg/m3 (22) 11.7 μg/m3 (49) 49.0
 
Aug. 2, 2020, 9 p.m. N/A 1.1 ppb (1) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.13 ppb (1) 20.0 μg/m3 (18) 10.4 μg/m3 (43) 43.0
 
Aug. 2, 2020, 8 p.m. N/A 1.1 ppb (1) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.11 ppb (1) 15.0 μg/m3 (14) 8.1 μg/m3 (34) 34.0
 
Aug. 2, 2020, 7 p.m. N/A 1.1 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.12 ppb (1) 9.0 μg/m3 (8) 5.3 μg/m3 (22) 25.0
 
Aug. 2, 2020, 6 p.m. N/A 1.1 ppb (1) 1.6 ppb (1) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.11 ppb (1) 6.0 μg/m3 (5) 3.5 μg/m3 (15) 25.0
 
Aug. 2, 2020, 5 p.m. N/A 1.1 ppb (1) 1.6 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.12 ppb (1) 5.0 μg/m3 (5) 3.5 μg/m3 (15) 28.0
 
Aug. 2, 2020, 4 p.m. N/A 1.0 ppb (1) 1.6 ppb (1) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.11 ppb (1) 9.0 μg/m3 (8) 5.3 μg/m3 (22) 32.0
 
Aug. 2, 2020, 3 p.m. N/A 1.0 ppb (1) 1.5 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.1 ppb (1) 9.0 μg/m3 (8) 5.2 μg/m3 (22) 30.0
 
Aug. 2, 2020, 2 p.m. N/A 1.0 ppb (1) 1.6 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.1 ppb (1) 8.0 μg/m3 (7) 5.1 μg/m3 (21) 29.0
 
Aug. 2, 2020, 1 p.m. N/A 1.1 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.11 ppb (1) 8.0 μg/m3 (7) 5.2 μg/m3 (22) 28.0
 
Aug. 2, 2020, noon N/A 1.1 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.11 ppb (1) 9.0 μg/m3 (8) 5.3 μg/m3 (22) 28.0
 
Aug. 2, 2020, 11 a.m. N/A 1.1 ppb (1) 2.6 ppb (2) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.13 ppb (1) 9.0 μg/m3 (8) 6.2 μg/m3 (26) 29.0
 
Aug. 2, 2020, 10 a.m. N/A 1.1 ppb (1) 2.5 ppb (2) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.13 ppb (1) 9.0 μg/m3 (8) 6.8 μg/m3 (28) 32.0
 
Aug. 2, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.18 ppb (2) 9.0 μg/m3 (8) 6.3 μg/m3 (26) 32.0
 
Aug. 2, 2020, 8 a.m. N/A 1.0 ppb (1) 3.1 ppb (3) N/A N/A 0.0 ppb (0) 42.0 ppb (32) 0.16 ppb (2) 10.0 μg/m3 (9) 6.8 μg/m3 (28) 32.0
 
Aug. 2, 2020, 7 a.m. N/A 1.0 ppb (1) 3.3 ppb (3) N/A N/A 0.0 ppb (0) 42.0 ppb (32) N/A 10.0 μg/m3 (9) 6.8 μg/m3 (28) 32.0
 
Aug. 2, 2020, 6 a.m. N/A 1.0 ppb (1) 3.6 ppb (3) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.16 ppb (2) 11.0 μg/m3 (10) 7.0 μg/m3 (29) 31.0
 
Aug. 2, 2020, 5 a.m. N/A 1.0 ppb (1) 3.5 ppb (3) N/A N/A 0.0 ppb (0) N/A 0.17 ppb (2) 10.0 μg/m3 (9) 7.1 μg/m3 (30) 30.0
 
Aug. 2, 2020, 4 a.m. N/A 1.0 ppb (1) 3.6 ppb (3) N/A N/A 0.0 ppb (0) 42.0 ppb (32) 0.16 ppb (2) 12.0 μg/m3 (11) 7.4 μg/m3 (31) 32.0
 
Aug. 2, 2020, 3 a.m. N/A 1.0 ppb (1) 4.1 ppb (4) N/A N/A 0.0 ppb (0) 47.0 ppb (36) 0.18 ppb (2) 13.0 μg/m3 (12) 8.3 μg/m3 (35) 36.0
 
Aug. 2, 2020, 2 a.m. N/A 1.0 ppb (1) 4.2 ppb (4) N/A N/A 0.0 ppb (0) 52.0 ppb (40) 0.18 ppb (2) 13.0 μg/m3 (12) 8.3 μg/m3 (35) 40.0
 
Aug. 2, 2020, 1 a.m. N/A 1.0 ppb (1) 3.2 ppb (3) N/A N/A 0.0 ppb (0) 48.0 ppb (37) 0.18 ppb (2) 12.0 μg/m3 (11) 7.7 μg/m3 (32) 37.0
 
Aug. 2, 2020, midnight N/A 1.1 ppb (1) 2.4 ppb (2) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.15 ppb (2) 12.0 μg/m3 (11) 6.9 μg/m3 (29) 31.0
 
Aug. 1, 2020, 11 p.m. N/A 1.1 ppb (1) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.15 ppb (2) 12.0 μg/m3 (11) 6.3 μg/m3 (26) 31.0
 
Aug. 1, 2020, 10 p.m. N/A 1.0 ppb (1) 1.8 ppb (2) N/A N/A N/A 36.0 ppb (28) 0.12 ppb (1) 9.0 μg/m3 (8) 5.3 μg/m3 (22) 28.0
 
Aug. 1, 2020, 9 p.m. N/A 1.0 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.11 ppb (1) 9.0 μg/m3 (8) 5.1 μg/m3 (21) 26.0
 
Aug. 1, 2020, 8 p.m. N/A 1.1 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.1 ppb (1) 9.0 μg/m3 (8) 5.1 μg/m3 (21) 25.0
 
Aug. 1, 2020, 7 p.m. N/A 1.0 ppb (1) 1.5 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.1 ppb (1) 9.0 μg/m3 (8) 4.7 μg/m3 (20) 24.0
 
Aug. 1, 2020, 6 p.m. N/A 1.1 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.11 ppb (1) 14.0 μg/m3 (13) 4.8 μg/m3 (20) 23.0
 
Aug. 1, 2020, 5 p.m. N/A 1.1 ppb (1) 1.6 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.11 ppb (1) 10.0 μg/m3 (9) 4.8 μg/m3 (20) 24.0
 
Aug. 1, 2020, 4 p.m. N/A 1.1 ppb (1) 1.6 ppb (1) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.1 ppb (1) 8.0 μg/m3 (7) 4.6 μg/m3 (19) 23.0
 
Aug. 1, 2020, 3 p.m. N/A 1.0 ppb (1) 1.6 ppb (1) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.12 ppb (1) 9.0 μg/m3 (8) 4.7 μg/m3 (20) 23.0
 
Aug. 1, 2020, 2 p.m. N/A 1.1 ppb (1) 1.6 ppb (1) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.11 ppb (1) 8.0 μg/m3 (7) 4.5 μg/m3 (19) 22.0
 
Aug. 1, 2020, 1 p.m. N/A 1.0 ppb (1) 1.6 ppb (1) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.1 ppb (1) 9.0 μg/m3 (8) 4.7 μg/m3 (20) 20.0
 
Aug. 1, 2020, noon N/A 1.0 ppb (1) 1.5 ppb (1) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.1 ppb (1) 8.0 μg/m3 (7) 4.7 μg/m3 (20) 21.0
 
Aug. 1, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.1 ppb (1) 8.0 μg/m3 (7) 4.8 μg/m3 (20) 22.0
 
Aug. 1, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.1 ppb (1) 8.0 μg/m3 (7) 4.7 μg/m3 (20) 22.0
 
Aug. 1, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.13 ppb (1) 8.0 μg/m3 (7) 4.4 μg/m3 (18) 22.0
 
Aug. 1, 2020, 8 a.m. N/A 1.0 ppb (1) 1.3 ppb (1) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.11 ppb (1) 7.0 μg/m3 (6) 4.3 μg/m3 (18) 22.0
 
Aug. 1, 2020, 7 a.m. N/A 1.0 ppb (1) 1.3 ppb (1) N/A N/A 0.0 ppb (0) 27.0 ppb (21) N/A 8.0 μg/m3 (7) 4.4 μg/m3 (18) 21.0
 
Aug. 1, 2020, 6 a.m. N/A 1.0 ppb (1) 1.3 ppb (1) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.1 ppb (1) 9.0 μg/m3 (8) 4.6 μg/m3 (19) 20.0
 
Aug. 1, 2020, 5 a.m. N/A 1.0 ppb (1) 1.5 ppb (1) N/A N/A 0.0 ppb (0) N/A 0.11 ppb (1) 10.0 μg/m3 (9) 4.4 μg/m3 (18) 18.0
 
Aug. 1, 2020, 4 a.m. N/A 1.0 ppb (1) 1.5 ppb (1) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.1 ppb (1) 9.0 μg/m3 (8) 4.6 μg/m3 (19) 21.0
 
Aug. 1, 2020, 3 a.m. N/A 1.0 ppb (1) 1.4 ppb (1) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.11 ppb (1) 7.0 μg/m3 (6) 4.5 μg/m3 (19) 21.0
 
Aug. 1, 2020, 2 a.m. N/A 1.0 ppb (1) 1.5 ppb (1) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.1 ppb (1) 8.0 μg/m3 (7) 4.8 μg/m3 (20) 22.0
 
Aug. 1, 2020, 1 a.m. N/A 1.0 ppb (1) 1.5 ppb (1) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.11 ppb (1) 9.0 μg/m3 (8) 5.0 μg/m3 (21) 22.0
 
Aug. 1, 2020, midnight N/A 1.0 ppb (1) 1.5 ppb (1) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.1 ppb (1) 9.0 μg/m3 (8) 5.1 μg/m3 (21) 22.0
 
July 31, 2020, 11 p.m. N/A 1.0 ppb (1) 1.6 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.12 ppb (1) 9.0 μg/m3 (8) 5.3 μg/m3 (22) 24.0
 
July 31, 2020, 10 p.m. N/A 1.1 ppb (1) 1.7 ppb (2) N/A N/A N/A 33.0 ppb (25) 0.11 ppb (1) 10.0 μg/m3 (9) 5.4 μg/m3 (23) 25.0
 
July 31, 2020, 9 p.m. N/A 1.0 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.11 ppb (1) 10.0 μg/m3 (9) 5.0 μg/m3 (21) 25.0
 
July 31, 2020, 8 p.m. N/A 1.0 ppb (1) 1.6 ppb (1) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.1 ppb (1) 9.0 μg/m3 (8) 5.0 μg/m3 (21) 25.0
 
July 31, 2020, 7 p.m. N/A 1.1 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.11 ppb (1) 8.0 μg/m3 (7) 4.9 μg/m3 (20) 25.0
 
July 31, 2020, 6 p.m. N/A 1.1 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.1 ppb (1) 9.0 μg/m3 (8) 4.7 μg/m3 (20) 25.0
 
July 31, 2020, 5 p.m. N/A 1.1 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.11 ppb (1) 9.0 μg/m3 (8) 5.0 μg/m3 (21) 26.0
 
July 31, 2020, 4 p.m. N/A 1.1 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.11 ppb (1) 10.0 μg/m3 (9) 5.4 μg/m3 (23) 26.0
 
July 31, 2020, 3 p.m. N/A 1.1 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.12 ppb (1) 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
July 31, 2020, 2 p.m. N/A 1.1 ppb (1) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.11 ppb (1) 11.0 μg/m3 (10) 5.4 μg/m3 (23) 23.0
 
July 31, 2020, 1 p.m. N/A 1.2 ppb (1) 2.3 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.11 ppb (1) 12.0 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
July 31, 2020, noon N/A 1.1 ppb (1) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.1 ppb (1) 8.0 μg/m3 (7) 4.5 μg/m3 (19) 20.0
 
July 31, 2020, 11 a.m. N/A 1.1 ppb (1) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.11 ppb (1) 7.0 μg/m3 (6) 4.3 μg/m3 (18) 21.0
 
July 31, 2020, 10 a.m. N/A 0.7 ppb (1) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.11 ppb (1) 9.0 μg/m3 (8) 5.6 μg/m3 (23) 23.0
 
July 31, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.15 ppb (2) 10.0 μg/m3 (9) 5.6 μg/m3 (23) 24.0
 
July 31, 2020, 8 a.m. N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.12 ppb (1) 9.0 μg/m3 (8) 5.0 μg/m3 (21) 23.0
 
July 31, 2020, 7 a.m. N/A 1.0 ppb (1) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A 9.0 μg/m3 (8) 5.2 μg/m3 (22) 24.0
 
July 31, 2020, 6 a.m. N/A 1.0 ppb (1) 2.2 ppb (2) N/A N/A 1.0 ppb (1) 33.0 ppb (25) 0.1 ppb (1) 11.0 μg/m3 (10) 5.5 μg/m3 (23) 25.0
 
July 31, 2020, 5 a.m. N/A 1.0 ppb (1) 1.9 ppb (2) N/A N/A 0.0 ppb (0) N/A 0.11 ppb (1) 11.0 μg/m3 (10) 6.1 μg/m3 (25) 25.0
 
July 31, 2020, 4 a.m. N/A 1.0 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.1 ppb (1) 10.0 μg/m3 (9) 6.6 μg/m3 (28) 31.0
 
July 31, 2020, 3 a.m. N/A 1.0 ppb (1) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.11 ppb (1) 11.0 μg/m3 (10) 6.6 μg/m3 (28) 32.0
 
July 31, 2020, 2 a.m. N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.11 ppb (1) 12.0 μg/m3 (11) 6.7 μg/m3 (28) 32.0
 
July 31, 2020, 1 a.m. N/A 1.0 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 44.0 ppb (34) 0.13 ppb (1) 12.0 μg/m3 (11) 6.4 μg/m3 (27) 34.0
 
July 31, 2020, midnight N/A 1.0 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 49.0 ppb (38) 0.12 ppb (1) 11.0 μg/m3 (10) 6.8 μg/m3 (28) 38.0
 
July 30, 2020, 11 p.m. N/A 1.1 ppb (1) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 49.0 ppb (38) 0.12 ppb (1) 13.0 μg/m3 (12) 6.9 μg/m3 (29) 38.0
 
July 30, 2020, 10 p.m. N/A 1.1 ppb (1) 2.2 ppb (2) N/A N/A N/A 48.0 ppb (37) 0.11 ppb (1) 13.0 μg/m3 (12) 6.6 μg/m3 (28) 37.0
 
July 30, 2020, 9 p.m. N/A 1.1 ppb (1) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 49.0 ppb (38) 0.12 ppb (1) 12.0 μg/m3 (11) 6.0 μg/m3 (25) 38.0
 
July 30, 2020, 8 p.m. N/A 1.0 ppb (1) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 52.0 ppb (40) 0.12 ppb (1) 12.0 μg/m3 (11) 6.3 μg/m3 (26) 40.0
 
July 30, 2020, 7 p.m. N/A 1.0 ppb (1) 2.4 ppb (2) N/A N/A 0.0 ppb (0) 55.0 ppb (42) 0.12 ppb (1) 12.0 μg/m3 (11) 5.9 μg/m3 (25) 42.0
 
July 30, 2020, 6 p.m. N/A 1.1 ppb (1) 2.6 ppb (2) N/A N/A 0.0 ppb (0) 57.0 ppb (44) 0.12 ppb (1) 11.0 μg/m3 (10) 5.7 μg/m3 (24) 44.0
 
July 30, 2020, 5 p.m. N/A 1.1 ppb (1) 2.4 ppb (2) N/A N/A 0.0 ppb (0) 57.0 ppb (44) 0.12 ppb (1) 9.0 μg/m3 (8) 4.8 μg/m3 (20) 44.0
 
July 30, 2020, 4 p.m. N/A 1.1 ppb (1) 2.3 ppb (2) N/A N/A 0.0 ppb (0) 54.0 ppb (42) 0.11 ppb (1) 9.0 μg/m3 (8) 5.0 μg/m3 (21) 42.0
 
July 30, 2020, 3 p.m. N/A 1.0 ppb (1) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 52.0 ppb (40) 0.12 ppb (1) 8.0 μg/m3 (7) 4.8 μg/m3 (20) 40.0
 
July 30, 2020, 2 p.m. N/A 1.1 ppb (1) 2.3 ppb (2) N/A N/A 0.0 ppb (0) 50.0 ppb (38) 0.11 ppb (1) 8.0 μg/m3 (7) 4.3 μg/m3 (18) 38.0
 
July 30, 2020, 1 p.m. N/A 1.0 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 48.0 ppb (37) 0.11 ppb (1) 7.0 μg/m3 (6) 4.1 μg/m3 (17) 37.0
 
July 30, 2020, noon N/A 1.0 ppb (1) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 46.0 ppb (35) 0.1 ppb (1) 8.0 μg/m3 (7) 4.7 μg/m3 (20) 35.0
 
July 30, 2020, 11 a.m. N/A 1.0 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 50.0 ppb (38) 0.12 ppb (1) 9.0 μg/m3 (8) 5.0 μg/m3 (21) 38.0
 
July 30, 2020, 10 a.m. N/A 0.7 ppb (1) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 52.0 ppb (40) 0.12 ppb (1) 9.0 μg/m3 (8) 5.2 μg/m3 (22) 40.0
 
July 30, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 52.0 ppb (40) 0.15 ppb (2) 8.0 μg/m3 (7) 5.2 μg/m3 (22) 40.0
 
July 30, 2020, 8 a.m. N/A 1.0 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 52.0 ppb (40) 0.13 ppb (1) 9.0 μg/m3 (8) 5.0 μg/m3 (21) 40.0
 
July 30, 2020, 7 a.m. N/A 1.0 ppb (1) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 50.0 ppb (38) N/A 10.0 μg/m3 (9) 5.5 μg/m3 (23) 38.0
 
July 30, 2020, 6 a.m. N/A 1.0 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 51.0 ppb (39) 0.12 ppb (1) 10.0 μg/m3 (9) 5.6 μg/m3 (23) 39.0
 
July 30, 2020, 5 a.m. N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A 0.0 ppb (0) N/A 0.12 ppb (1) 11.0 μg/m3 (10) 5.6 μg/m3 (23) 23.0
 
July 30, 2020, 4 a.m. N/A 1.0 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 48.0 ppb (37) 0.11 ppb (1) 11.0 μg/m3 (10) 5.6 μg/m3 (23) 37.0
 
July 30, 2020, 3 a.m. N/A 1.0 ppb (1) 2.6 ppb (2) N/A N/A 0.0 ppb (0) 48.0 ppb (37) 0.13 ppb (1) 14.0 μg/m3 (13) 6.9 μg/m3 (29) 37.0
 
July 30, 2020, 2 a.m. N/A 1.0 ppb (1) 4.2 ppb (4) N/A N/A 0.0 ppb (0) 54.0 ppb (42) 0.16 ppb (2) 14.0 μg/m3 (13) 8.2 μg/m3 (34) 42.0
 
July 30, 2020, 1 a.m. N/A 1.1 ppb (1) 4.1 ppb (4) N/A N/A 0.0 ppb (0) 60.0 ppb (46) 0.17 ppb (2) 15.0 μg/m3 (14) 8.5 μg/m3 (35) 46.0
 
July 30, 2020, midnight N/A 1.1 ppb (1) 4.1 ppb (4) N/A N/A 0.0 ppb (0) 66.0 ppb (51) 0.16 ppb (2) 15.0 μg/m3 (14) 8.7 μg/m3 (36) 51.0
 
July 29, 2020, 11 p.m. N/A 1.1 ppb (1) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 57.0 ppb (44) 0.14 ppb (2) 12.0 μg/m3 (11) 6.3 μg/m3 (26) 44.0
 
July 29, 2020, 10 p.m. N/A 1.1 ppb (1) 2.3 ppb (2) N/A N/A N/A 56.0 ppb (43) 0.12 ppb (1) 12.0 μg/m3 (11) 5.4 μg/m3 (23) 43.0
 
July 29, 2020, 9 p.m. N/A 1.1 ppb (1) 2.3 ppb (2) N/A N/A 0.0 ppb (0) 56.0 ppb (43) 0.13 ppb (1) 11.0 μg/m3 (10) 5.3 μg/m3 (22) 43.0
 
July 29, 2020, 8 p.m. N/A 1.1 ppb (1) 2.5 ppb (2) N/A N/A 0.0 ppb (0) 55.0 ppb (42) 0.12 ppb (1) 12.0 μg/m3 (11) 5.7 μg/m3 (24) 42.0
 
July 29, 2020, 7 p.m. N/A 1.1 ppb (1) 2.6 ppb (2) N/A N/A 0.0 ppb (0) 55.0 ppb (42) 0.13 ppb (1) 12.0 μg/m3 (11) 6.0 μg/m3 (25) 42.0
 
July 29, 2020, 6 p.m. N/A 1.1 ppb (1) 2.5 ppb (2) N/A N/A 0.0 ppb (0) 55.0 ppb (42) 0.14 ppb (2) 11.0 μg/m3 (10) 5.5 μg/m3 (23) 42.0
 
July 29, 2020, 5 p.m. N/A 1.1 ppb (1) 2.6 ppb (2) N/A N/A 0.0 ppb (0) 52.0 ppb (40) 0.11 ppb (1) 13.0 μg/m3 (12) 6.6 μg/m3 (28) 40.0
 
July 29, 2020, 4 p.m. N/A 1.1 ppb (1) 3.2 ppb (3) N/A N/A 0.0 ppb (0) 50.0 ppb (38) 0.12 ppb (1) 14.0 μg/m3 (13) 6.8 μg/m3 (28) 38.0
 
July 29, 2020, 3 p.m. N/A 1.1 ppb (1) 2.6 ppb (2) N/A N/A 0.0 ppb (0) 42.0 ppb (32) 0.11 ppb (1) 11.0 μg/m3 (10) 5.9 μg/m3 (25) 32.0
 
July 29, 2020, 2 p.m. N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.1 ppb (1) 10.0 μg/m3 (9) 5.1 μg/m3 (21) 27.0
 
July 29, 2020, 1 p.m. N/A 1.0 ppb (1) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.1 ppb (1) 10.0 μg/m3 (9) 4.8 μg/m3 (20) 25.0
 
July 29, 2020, noon N/A 1.0 ppb (1) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.09 ppb (1) 9.0 μg/m3 (8) 4.4 μg/m3 (18) 25.0
 
July 29, 2020, 11 a.m. N/A 1.0 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.1 ppb (1) 8.0 μg/m3 (7) 4.3 μg/m3 (18) 27.0
 
July 29, 2020, 10 a.m. N/A 1.0 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.1 ppb (1) 8.0 μg/m3 (7) 4.1 μg/m3 (17) 27.0
 
July 29, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.12 ppb (1) 8.0 μg/m3 (7) 4.1 μg/m3 (17) 28.0
 
July 29, 2020, 8 a.m. N/A 1.0 ppb (1) 1.6 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.11 ppb (1) 9.0 μg/m3 (8) 4.4 μg/m3 (18) 28.0
 
July 29, 2020, 7 a.m. N/A 1.0 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (27) N/A 9.0 μg/m3 (8) 4.5 μg/m3 (19) 27.0
 
July 29, 2020, 6 a.m. N/A 1.0 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.09 ppb (1) 9.0 μg/m3 (8) 4.4 μg/m3 (18) 26.0
 
July 29, 2020, 5 a.m. N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A 0.0 ppb (0) N/A 0.11 ppb (1) 10.0 μg/m3 (9) 4.4 μg/m3 (18) 18.0
 
July 29, 2020, 4 a.m. N/A 1.0 ppb (1) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.1 ppb (1) 9.0 μg/m3 (8) 4.8 μg/m3 (20) 25.0
 
July 29, 2020, 3 a.m. N/A 1.0 ppb (1) 1.5 ppb (1) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.1 ppb (1) 9.0 μg/m3 (8) 4.8 μg/m3 (20) 25.0
 
July 29, 2020, 2 a.m. N/A 1.1 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.1 ppb (1) 11.0 μg/m3 (10) 4.8 μg/m3 (20) 24.0
 
July 29, 2020, 1 a.m. N/A 1.4 ppb (1) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.11 ppb (1) 19.0 μg/m3 (17) 5.5 μg/m3 (23) 23.0
 
July 29, 2020, midnight N/A 1.1 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.1 ppb (1) 11.0 μg/m3 (10) 5.4 μg/m3 (23) 23.0
 
July 28, 2020, 11 p.m. N/A 1.1 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.11 ppb (1) 17.0 μg/m3 (15) 5.8 μg/m3 (24) 24.0
 
July 28, 2020, 10 p.m. N/A 1.1 ppb (1) 1.8 ppb (2) N/A N/A N/A 34.0 ppb (26) 0.11 ppb (1) 10.0 μg/m3 (9) 5.8 μg/m3 (24) 26.0
 
July 28, 2020, 9 p.m. N/A 1.1 ppb (1) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.11 ppb (1) 10.0 μg/m3 (9) 5.5 μg/m3 (23) 29.0
 
July 28, 2020, 8 p.m. N/A 1.1 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.13 ppb (1) 11.0 μg/m3 (10) 5.7 μg/m3 (24) 32.0
 
July 28, 2020, 7 p.m. N/A 1.1 ppb (1) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.51 ppb (6) 10.0 μg/m3 (9) 5.6 μg/m3 (23) 32.0
 
July 28, 2020, 6 p.m. N/A 1.1 ppb (1) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 42.0 ppb (32) N/A 10.0 μg/m3 (9) 5.5 μg/m3 (23) 32.0
 
July 28, 2020, 5 p.m. N/A 1.1 ppb (1) 2.0 ppb (2) N/A N/A N/A 44.0 ppb (34) N/A 11.0 μg/m3 (10) 5.3 μg/m3 (22) 34.0
 
July 28, 2020, 4 p.m. N/A 1.1 ppb (1) 2.1 ppb (2) N/A N/A N/A 45.0 ppb (35) N/A 9.0 μg/m3 (8) 4.6 μg/m3 (19) 35.0
 
July 28, 2020, 3 p.m. N/A 1.1 ppb (1) 2.1 ppb (2) N/A N/A N/A 44.0 ppb (34) N/A 9.0 μg/m3 (8) 5.0 μg/m3 (21) 34.0
 
July 28, 2020, 2 p.m. N/A 1.1 ppb (1) 2.7 ppb (3) N/A N/A N/A 46.0 ppb (35) N/A 10.0 μg/m3 (9) 5.7 μg/m3 (24) 35.0
 
July 28, 2020, 1 p.m. N/A 1.1 ppb (1) 3.0 ppb (3) N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 6.1 μg/m3 (25) 25.0
 
July 28, 2020, noon N/A 1.1 ppb (1) 2.9 ppb (3) N/A N/A 0.0 ppb (0) N/A 0.11 ppb (1) 10.0 μg/m3 (9) 5.6 μg/m3 (23) 23.0
 
July 28, 2020, 11 a.m. N/A 1.1 ppb (1) 2.7 ppb (3) N/A N/A 0.0 ppb (0) N/A 0.1 ppb (1) 9.0 μg/m3 (8) 5.5 μg/m3 (23) 23.0
 
July 28, 2020, 10 a.m. N/A 1.1 ppb (1) 3.1 ppb (3) N/A N/A 0.0 ppb (0) N/A 0.1 ppb (1) 11.0 μg/m3 (10) 6.2 μg/m3 (26) 26.0
 
July 28, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (33) 0.15 ppb (2) 11.0 μg/m3 (10) 6.9 μg/m3 (29) 33.0
 
July 28, 2020, 8 a.m. N/A 1.1 ppb (1) 3.2 ppb (3) N/A N/A 0.0 ppb (0) 44.0 ppb (34) 0.13 ppb (1) 12.0 μg/m3 (11) 7.5 μg/m3 (31) 34.0