ID: 1021

AQSQID: 090050005

Site Name: Cornwall

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

Updated: June 15, 2021, 12:51 p.m.

Location: W Cornwall (E Cornwall), CT

Reporting: True, Located: True

Current AQI: 31.0

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
June 15, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.08 ppb (2) 12.0 μg/m3 (12) 7.3 μg/m3 (31) 31.0
 
June 15, 2021, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.09 ppb (2) 11.0 μg/m3 (11) 6.6 μg/m3 (28) 28.0
 
June 15, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.11 ppb (2) 13.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
June 15, 2021, 8 a.m. N/A 0.0 ppb (0) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.12 ppb (2) 15.0 μg/m3 (14) 7.8 μg/m3 (33) 33.0
 
June 15, 2021, 7 a.m. N/A 0.0 ppb (0) 2.2 ppb (3) N/A N/A 0.0 ppb (0) 27.0 ppb (25) N/A 16.0 μg/m3 (15) 8.0 μg/m3 (34) 34.0
 
June 15, 2021, 6 a.m. N/A 0.0 ppb (0) 2.3 ppb (3) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.19 ppb (3) 13.0 μg/m3 (13) 5.6 μg/m3 (24) 27.0
 
June 15, 2021, 5 a.m. N/A 0.0 ppb (0) 2.1 ppb (2) N/A N/A 0.0 ppb (0) N/A 0.18 ppb (3) 10.0 μg/m3 (10) 4.4 μg/m3 (19) 19.0
 
June 15, 2021, 4 a.m. N/A 0.0 ppb (0) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.16 ppb (3) 12.0 μg/m3 (12) 4.5 μg/m3 (19) 26.0
 
June 15, 2021, 3 a.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.16 ppb (3) 11.0 μg/m3 (11) 4.2 μg/m3 (18) 27.0
 
June 15, 2021, 2 a.m. N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.14 ppb (2) 10.0 μg/m3 (10) 4.1 μg/m3 (18) 26.0
 
June 15, 2021, 1 a.m. N/A 0.0 ppb (0) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.27 ppb (4) 7.0 μg/m3 (7) 3.8 μg/m3 (16) 25.0
 
June 15, 2021, midnight N/A 0.1 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.24 ppb (3) 10.0 μg/m3 (10) 4.4 μg/m3 (19) 27.0
 
June 14, 2021, 11 p.m. N/A 0.0 ppb (0) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.21 ppb (3) 10.0 μg/m3 (10) 4.3 μg/m3 (18) 31.0
 
June 14, 2021, 10 p.m. N/A 0.0 ppb (0) 1.1 ppb (2) N/A N/A N/A 36.0 ppb (34) 0.19 ppb (3) 12.0 μg/m3 (12) 4.2 μg/m3 (18) 34.0
 
June 14, 2021, 9 p.m. N/A 0.1 ppb (1) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.15 ppb (2) 10.0 μg/m3 (10) 4.1 μg/m3 (18) 33.0
 
June 14, 2021, 8 p.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.13 ppb (2) 10.0 μg/m3 (10) 4.0 μg/m3 (17) 33.0
 
June 14, 2021, 7 p.m. N/A 0.0 ppb (0) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.13 ppb (2) 11.0 μg/m3 (11) 4.3 μg/m3 (18) 33.0
 
June 14, 2021, 6 p.m. N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.08 ppb (2) 10.0 μg/m3 (10) 4.2 μg/m3 (18) 34.0
 
June 14, 2021, 5 p.m. N/A 0.1 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.06 ppb (2) 14.0 μg/m3 (13) 4.2 μg/m3 (18) 33.0
 
June 14, 2021, 4 p.m. N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.06 ppb (2) 12.0 μg/m3 (12) 3.6 μg/m3 (16) 33.0
 
June 14, 2021, 3 p.m. N/A 0.1 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.08 ppb (2) 16.0 μg/m3 (15) 3.4 μg/m3 (15) 32.0
 
June 14, 2021, 2 p.m. N/A 0.1 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.11 ppb (2) 15.0 μg/m3 (14) 3.5 μg/m3 (15) 34.0
 
June 14, 2021, 1 p.m. N/A 0.1 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (32) N/A 16.0 μg/m3 (15) 3.6 μg/m3 (16) 32.0
 
June 14, 2021, noon N/A 0.1 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.03 ppb (0) 14.0 μg/m3 (13) 3.0 μg/m3 (13) 33.0
 
June 14, 2021, 11 a.m. N/A 0.1 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.29 ppb (4) 35.0 μg/m3 (33) 3.5 μg/m3 (15) 33.0
 
June 14, 2021, 10 a.m. N/A 1.0 ppb (1) 2.9 ppb (3) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.59 ppb (7) 10.0 μg/m3 (10) 4.8 μg/m3 (20) 31.0
 
June 14, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.15 ppb (2) 9.0 μg/m3 (9) 4.9 μg/m3 (21) 31.0
 
June 14, 2021, 8 a.m. N/A 0.1 ppb (1) 2.3 ppb (3) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.13 ppb (2) 9.0 μg/m3 (9) 5.0 μg/m3 (21) 29.0
 
June 14, 2021, 7 a.m. N/A 0.0 ppb (0) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 31.0 ppb (29) N/A 10.0 μg/m3 (10) 5.2 μg/m3 (22) 29.0
 
June 14, 2021, 6 a.m. N/A 0.0 ppb (0) 2.8 ppb (3) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.17 ppb (3) 10.0 μg/m3 (10) 5.3 μg/m3 (23) 29.0
 
June 14, 2021, 5 a.m. N/A 0.0 ppb (0) 3.3 ppb (4) N/A N/A 0.0 ppb (0) N/A 0.19 ppb (3) 12.0 μg/m3 (12) 5.9 μg/m3 (25) 25.0
 
June 14, 2021, 4 a.m. N/A 0.1 ppb (1) 4.4 ppb (5) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.2 ppb (3) 12.0 μg/m3 (12) 6.6 μg/m3 (28) 29.0
 
June 14, 2021, 3 a.m. N/A 0.0 ppb (0) 4.7 ppb (5) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.21 ppb (3) 14.0 μg/m3 (13) 8.6 μg/m3 (36) 36.0
 
June 14, 2021, 2 a.m. N/A 0.1 ppb (1) 5.4 ppb (6) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.21 ppb (3) 16.0 μg/m3 (15) 9.1 μg/m3 (38) 38.0
 
June 14, 2021, 1 a.m. N/A 0.1 ppb (1) 5.8 ppb (6) N/A N/A 0.0 ppb (0) 52.0 ppb (49) 0.25 ppb (3) 17.0 μg/m3 (16) 10.1 μg/m3 (43) 49.0
 
June 14, 2021, midnight N/A 0.1 ppb (1) 5.4 ppb (6) N/A N/A 0.0 ppb (0) 57.0 ppb (58) 0.24 ppb (3) 18.0 μg/m3 (17) 9.9 μg/m3 (42) 58.0
 
June 13, 2021, 11 p.m. N/A 0.1 ppb (1) 4.5 ppb (5) N/A N/A 0.0 ppb (0) 60.0 ppb (68) 0.2 ppb (3) 16.0 μg/m3 (15) 8.5 μg/m3 (36) 68.0
 
June 13, 2021, 10 p.m. N/A 0.0 ppb (0) 2.8 ppb (3) N/A N/A N/A 55.0 ppb (51) 0.17 ppb (3) 13.0 μg/m3 (13) 7.2 μg/m3 (31) 51.0
 
June 13, 2021, 9 p.m. N/A 0.1 ppb (1) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.15 ppb (2) 11.0 μg/m3 (11) 5.7 μg/m3 (24) 43.0
 
June 13, 2021, 8 p.m. N/A 0.0 ppb (0) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.15 ppb (2) 12.0 μg/m3 (12) 5.6 μg/m3 (24) 41.0
 
June 13, 2021, 7 p.m. N/A 0.1 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.14 ppb (2) 11.0 μg/m3 (11) 5.5 μg/m3 (23) 40.0
 
June 13, 2021, 6 p.m. N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.14 ppb (2) 10.0 μg/m3 (10) 5.4 μg/m3 (23) 40.0
 
June 13, 2021, 5 p.m. N/A 0.1 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.14 ppb (2) 11.0 μg/m3 (11) 5.6 μg/m3 (24) 39.0
 
June 13, 2021, 4 p.m. N/A 0.0 ppb (0) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.14 ppb (2) 11.0 μg/m3 (11) 6.1 μg/m3 (26) 37.0
 
June 13, 2021, 3 p.m. N/A 0.0 ppb (0) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.14 ppb (2) 11.0 μg/m3 (11) 6.1 μg/m3 (26) 37.0
 
June 13, 2021, 2 p.m. N/A 0.1 ppb (1) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.14 ppb (2) 12.0 μg/m3 (12) 6.6 μg/m3 (28) 37.0
 
June 13, 2021, 1 p.m. N/A 0.0 ppb (0) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.14 ppb (2) 13.0 μg/m3 (13) 7.6 μg/m3 (32) 34.0
 
June 13, 2021, noon N/A 0.1 ppb (1) 2.6 ppb (3) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.13 ppb (2) 14.0 μg/m3 (13) 8.2 μg/m3 (35) 35.0
 
June 13, 2021, 11 a.m. N/A 0.2 ppb (1) 3.1 ppb (3) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.15 ppb (2) 17.0 μg/m3 (16) 9.1 μg/m3 (38) 38.0
 
June 13, 2021, 10 a.m. N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.16 ppb (3) 13.0 μg/m3 (13) 7.7 μg/m3 (33) 33.0
 
June 13, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.16 ppb (3) 13.0 μg/m3 (13) 7.5 μg/m3 (32) 32.0
 
June 13, 2021, 8 a.m. N/A 0.0 ppb (0) 2.8 ppb (3) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.15 ppb (2) 15.0 μg/m3 (14) 8.3 μg/m3 (35) 35.0
 
June 13, 2021, 7 a.m. N/A 0.0 ppb (0) 4.0 ppb (4) N/A N/A 0.0 ppb (0) 32.0 ppb (30) N/A 15.0 μg/m3 (14) 8.1 μg/m3 (34) 34.0
 
June 13, 2021, 6 a.m. N/A 0.1 ppb (1) 4.0 ppb (4) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.18 ppb (3) 15.0 μg/m3 (14) 8.9 μg/m3 (38) 38.0
 
June 13, 2021, 5 a.m. N/A 0.1 ppb (1) 3.1 ppb (3) N/A N/A 0.0 ppb (0) N/A 0.18 ppb (3) 16.0 μg/m3 (15) 8.3 μg/m3 (35) 35.0
 
June 13, 2021, 4 a.m. N/A 0.1 ppb (1) 2.3 ppb (3) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.16 ppb (3) 13.0 μg/m3 (13) 8.1 μg/m3 (34) 34.0
 
June 13, 2021, 3 a.m. N/A 0.1 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.16 ppb (3) 11.0 μg/m3 (11) 7.0 μg/m3 (30) 30.0
 
June 13, 2021, 2 a.m. N/A 0.0 ppb (0) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.15 ppb (2) 12.0 μg/m3 (12) 7.6 μg/m3 (32) 32.0
 
June 13, 2021, 1 a.m. N/A 0.1 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.17 ppb (3) 11.0 μg/m3 (11) 6.8 μg/m3 (29) 29.0
 
June 13, 2021, midnight N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.16 ppb (3) 10.0 μg/m3 (10) 5.6 μg/m3 (24) 27.0
 
June 12, 2021, 11 p.m. N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.16 ppb (3) 10.0 μg/m3 (10) 4.7 μg/m3 (20) 29.0
 
June 12, 2021, 10 p.m. N/A 0.1 ppb (1) 1.2 ppb (2) N/A N/A N/A 31.0 ppb (29) 0.17 ppb (3) 9.0 μg/m3 (9) 5.1 μg/m3 (22) 29.0
 
June 12, 2021, 9 p.m. N/A 0.0 ppb (0) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.15 ppb (2) 12.0 μg/m3 (12) 5.9 μg/m3 (25) 28.0
 
June 12, 2021, 8 p.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.13 ppb (2) 9.0 μg/m3 (9) 5.4 μg/m3 (23) 30.0
 
June 12, 2021, 7 p.m. N/A 0.0 ppb (0) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.14 ppb (2) 10.0 μg/m3 (10) 5.4 μg/m3 (23) 31.0
 
June 12, 2021, 6 p.m. N/A 0.0 ppb (0) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.14 ppb (2) 11.0 μg/m3 (11) 6.2 μg/m3 (26) 32.0
 
June 12, 2021, 5 p.m. N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.14 ppb (2) 12.0 μg/m3 (12) 6.4 μg/m3 (27) 30.0
 
June 12, 2021, 4 p.m. N/A 0.0 ppb (0) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.13 ppb (2) 10.0 μg/m3 (10) 5.1 μg/m3 (22) 30.0
 
June 12, 2021, 3 p.m. N/A 0.1 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.13 ppb (2) 10.0 μg/m3 (10) 5.0 μg/m3 (21) 30.0
 
June 12, 2021, 2 p.m. N/A 0.1 ppb (1) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.12 ppb (2) 10.0 μg/m3 (10) 4.5 μg/m3 (19) 29.0
 
June 12, 2021, 1 p.m. N/A 0.1 ppb (1) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.11 ppb (2) 11.0 μg/m3 (11) 4.5 μg/m3 (19) 28.0
 
June 12, 2021, noon N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.13 ppb (2) 11.0 μg/m3 (11) 5.5 μg/m3 (23) 24.0
 
June 12, 2021, 11 a.m. N/A 0.1 ppb (1) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.13 ppb (2) 14.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
June 12, 2021, 10 a.m. N/A 0.1 ppb (1) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.13 ppb (2) 15.0 μg/m3 (14) 6.9 μg/m3 (29) 29.0
 
June 12, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.13 ppb (2) 16.0 μg/m3 (15) 7.1 μg/m3 (30) 30.0
 
June 12, 2021, 8 a.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.12 ppb (2) 14.0 μg/m3 (13) 6.7 μg/m3 (28) 28.0
 
June 12, 2021, 7 a.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 29.0 ppb (27) N/A 14.0 μg/m3 (13) 6.8 μg/m3 (29) 29.0
 
June 12, 2021, 6 a.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.12 ppb (2) 15.0 μg/m3 (14) 7.1 μg/m3 (30) 30.0
 
June 12, 2021, 5 a.m. N/A 0.0 ppb (0) 1.2 ppb (2) N/A N/A 0.0 ppb (0) N/A 0.14 ppb (2) 16.0 μg/m3 (15) 7.4 μg/m3 (31) 31.0
 
June 12, 2021, 4 a.m. N/A 0.0 ppb (0) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.15 ppb (2) 17.0 μg/m3 (16) 7.4 μg/m3 (31) 31.0
 
June 12, 2021, 3 a.m. N/A 0.0 ppb (0) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.14 ppb (2) 16.0 μg/m3 (15) 7.2 μg/m3 (31) 31.0
 
June 12, 2021, 2 a.m. N/A 0.0 ppb (0) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.13 ppb (2) 15.0 μg/m3 (14) 6.5 μg/m3 (28) 33.0
 
June 12, 2021, 1 a.m. N/A 0.0 ppb (0) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.17 ppb (3) 16.0 μg/m3 (15) 5.7 μg/m3 (24) 36.0
 
June 12, 2021, midnight N/A 0.1 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.17 ppb (3) 15.0 μg/m3 (14) 4.8 μg/m3 (20) 38.0
 
June 11, 2021, 11 p.m. N/A 0.0 ppb (0) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.15 ppb (2) 12.0 μg/m3 (12) 4.4 μg/m3 (19) 41.0
 
June 11, 2021, 10 p.m. N/A 0.0 ppb (0) 1.5 ppb (2) N/A N/A N/A 48.0 ppb (45) 0.15 ppb (2) 11.0 μg/m3 (11) 3.7 μg/m3 (16) 45.0
 
June 11, 2021, 9 p.m. N/A 0.0 ppb (0) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 48.0 ppb (45) 0.13 ppb (2) 12.0 μg/m3 (12) 3.5 μg/m3 (15) 45.0
 
June 11, 2021, 8 p.m. N/A 0.1 ppb (1) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.12 ppb (2) 9.0 μg/m3 (9) 2.8 μg/m3 (12) 42.0
 
June 11, 2021, 7 p.m. N/A 0.1 ppb (1) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.1 ppb (2) 9.0 μg/m3 (9) 2.7 μg/m3 (12) 41.0
 
June 11, 2021, 6 p.m. N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.1 ppb (2) 11.0 μg/m3 (11) 3.2 μg/m3 (14) 44.0
 
June 11, 2021, 5 p.m. N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.1 ppb (2) 11.0 μg/m3 (11) 3.5 μg/m3 (15) 42.0
 
June 11, 2021, 4 p.m. N/A 0.0 ppb (0) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.09 ppb (2) 10.0 μg/m3 (10) 3.7 μg/m3 (16) 40.0
 
June 11, 2021, 3 p.m. N/A 0.1 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.08 ppb (2) 9.0 μg/m3 (9) 4.1 μg/m3 (18) 38.0
 
June 11, 2021, 2 p.m. N/A 0.0 ppb (0) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.07 ppb (2) 11.0 μg/m3 (11) 4.5 μg/m3 (19) 36.0
 
June 11, 2021, 1 p.m. N/A 0.1 ppb (1) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.11 ppb (2) 11.0 μg/m3 (11) 5.0 μg/m3 (21) 34.0
 
June 11, 2021, noon N/A 0.0 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.09 ppb (2) 13.0 μg/m3 (13) 5.9 μg/m3 (25) 32.0
 
June 11, 2021, 11 a.m. N/A 0.1 ppb (1) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.1 ppb (2) 17.0 μg/m3 (16) 8.6 μg/m3 (36) 36.0
 
June 11, 2021, 10 a.m. N/A 0.1 ppb (1) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.13 ppb (2) 19.0 μg/m3 (18) 10.8 μg/m3 (46) 46.0
 
June 11, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.12 ppb (2) 19.0 μg/m3 (18) 10.4 μg/m3 (44) 44.0
 
June 11, 2021, 8 a.m. N/A 0.0 ppb (0) 0.5 ppb (1) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.11 ppb (2) 20.0 μg/m3 (19) 10.3 μg/m3 (43) 43.0
 
June 11, 2021, 7 a.m. N/A 0.0 ppb (0) 0.5 ppb (1) N/A N/A 0.0 ppb (0) 33.0 ppb (31) N/A 20.0 μg/m3 (19) 11.0 μg/m3 (46) 46.0
 
June 11, 2021, 6 a.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.11 ppb (2) 19.0 μg/m3 (18) 10.7 μg/m3 (45) 45.0
 
June 11, 2021, 5 a.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) N/A 0.15 ppb (2) 18.0 μg/m3 (17) 8.8 μg/m3 (37) 37.0
 
June 11, 2021, 4 a.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.2 ppb (3) 18.0 μg/m3 (17) 8.5 μg/m3 (36) 36.0
 
June 11, 2021, 3 a.m. N/A 0.0 ppb (0) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.24 ppb (3) 17.0 μg/m3 (16) 6.0 μg/m3 (25) 30.0
 
June 11, 2021, 2 a.m. N/A 0.1 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.22 ppb (3) 15.0 μg/m3 (14) 5.0 μg/m3 (21) 32.0
 
June 11, 2021, 1 a.m. N/A 0.1 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.11 ppb (2) 15.0 μg/m3 (14) 4.7 μg/m3 (20) 36.0
 
June 11, 2021, midnight N/A 0.1 ppb (1) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.12 ppb (2) 18.0 μg/m3 (17) 4.9 μg/m3 (21) 39.0
 
June 10, 2021, 11 p.m. N/A 0.0 ppb (0) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.12 ppb (2) 17.0 μg/m3 (16) 4.5 μg/m3 (19) 44.0
 
June 10, 2021, 10 p.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A N/A N/A 44.0 ppb (41) 0.11 ppb (2) 14.0 μg/m3 (13) 4.2 μg/m3 (18) 41.0
 
June 10, 2021, 9 p.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.11 ppb (2) 13.0 μg/m3 (13) 4.1 μg/m3 (18) 36.0
 
June 10, 2021, 8 p.m. N/A 0.1 ppb (1) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) 11.0 μg/m3 (11) 3.6 μg/m3 (16) 33.0
 
June 10, 2021, 7 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) 12.0 μg/m3 (12) 4.2 μg/m3 (18) 33.0
 
June 10, 2021, 6 p.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) 11.0 μg/m3 (11) 3.4 μg/m3 (15) 33.0
 
June 10, 2021, 5 p.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) 9.0 μg/m3 (9) 3.0 μg/m3 (13) 33.0
 
June 10, 2021, 4 p.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.11 ppb (2) 11.0 μg/m3 (11) 3.2 μg/m3 (14) 32.0
 
June 10, 2021, 3 p.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.12 ppb (2) 11.0 μg/m3 (11) 3.1 μg/m3 (13) 31.0
 
June 10, 2021, 2 p.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.11 ppb (2) 12.0 μg/m3 (12) 3.2 μg/m3 (14) 30.0
 
June 10, 2021, 1 p.m. N/A 0.0 ppb (0) 0.5 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.1 ppb (2) 12.0 μg/m3 (12) 3.1 μg/m3 (13) 29.0
 
June 10, 2021, noon N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.1 ppb (2) 10.0 μg/m3 (10) 3.3 μg/m3 (14) 29.0
 
June 10, 2021, 11 a.m. N/A 0.1 ppb (1) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) 12.0 μg/m3 (12) 3.5 μg/m3 (15) 31.0
 
June 10, 2021, 10 a.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.12 ppb (2) 14.0 μg/m3 (13) 4.3 μg/m3 (18) 34.0
 
June 10, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.13 ppb (2) 14.0 μg/m3 (13) 4.8 μg/m3 (20) 36.0
 
June 10, 2021, 8 a.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.12 ppb (2) 17.0 μg/m3 (16) 6.0 μg/m3 (25) 39.0
 
June 10, 2021, 7 a.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 42.0 ppb (39) N/A 17.0 μg/m3 (16) 6.9 μg/m3 (29) 39.0
 
June 10, 2021, 6 a.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.13 ppb (2) 18.0 μg/m3 (17) 7.6 μg/m3 (32) 36.0
 
June 10, 2021, 5 a.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) N/A 0.14 ppb (2) 18.0 μg/m3 (17) 9.8 μg/m3 (41) 41.0
 
June 10, 2021, 4 a.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.14 ppb (2) 19.0 μg/m3 (18) 11.2 μg/m3 (47) 47.0
 
June 10, 2021, 3 a.m. N/A 0.0 ppb (0) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.14 ppb (2) 19.0 μg/m3 (18) 11.0 μg/m3 (46) 46.0
 
June 10, 2021, 2 a.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.14 ppb (2) 22.0 μg/m3 (21) 12.8 μg/m3 (53) 53.0
 
June 10, 2021, 1 a.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.13 ppb (2) 20.0 μg/m3 (19) 12.7 μg/m3 (53) 53.0
 
June 10, 2021, midnight N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.13 ppb (2) 19.0 μg/m3 (18) 11.9 μg/m3 (50) 50.0
 
June 9, 2021, 11 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.12 ppb (2) 21.0 μg/m3 (20) 12.9 μg/m3 (53) 53.0
 
June 9, 2021, 10 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A N/A 33.0 ppb (31) 0.13 ppb (2) 19.0 μg/m3 (18) 10.7 μg/m3 (45) 45.0
 
June 9, 2021, 9 p.m. N/A 0.0 ppb (0) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.19 ppb (3) 16.0 μg/m3 (15) 9.9 μg/m3 (42) 42.0
 
June 9, 2021, 8 p.m. N/A 0.0 ppb (0) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.15 ppb (2) 16.0 μg/m3 (15) 8.8 μg/m3 (37) 37.0
 
June 9, 2021, 7 p.m. N/A 0.1 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.14 ppb (2) 16.0 μg/m3 (15) 9.6 μg/m3 (40) 40.0
 
June 9, 2021, 6 p.m. N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) N/A 0.13 ppb (2) 14.0 μg/m3 (13) 8.4 μg/m3 (36) 36.0
 
June 9, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.16 ppb (3) 15.0 μg/m3 (14) 8.3 μg/m3 (35) 35.0
 
June 9, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.14 ppb (2) 12.0 μg/m3 (12) 7.5 μg/m3 (32) 32.0
 
June 9, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.24 ppb (3) 11.0 μg/m3 (11) 7.2 μg/m3 (31) 31.0
 
June 9, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.12 ppb (2) 12.0 μg/m3 (12) 7.2 μg/m3 (31) 31.0
 
June 9, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.11 ppb (2) 15.0 μg/m3 (14) 7.2 μg/m3 (31) 31.0
 
June 9, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.11 ppb (2) 13.0 μg/m3 (13) 6.7 μg/m3 (28) 28.0
 
June 9, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.12 ppb (2) 8.0 μg/m3 (8) 4.8 μg/m3 (20) 20.0
 
June 9, 2021, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.12 ppb (2) 7.0 μg/m3 (7) 4.3 μg/m3 (18) 20.0
 
June 9, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.13 ppb (2) 6.0 μg/m3 (6) 4.0 μg/m3 (17) 21.0
 
June 9, 2021, 8 a.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.12 ppb (2) 8.0 μg/m3 (8) 5.3 μg/m3 (23) 24.0
 
June 9, 2021, 7 a.m. N/A -0.1 ppb (0) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 24.0 ppb (23) N/A 7.0 μg/m3 (7) 4.7 μg/m3 (20) 23.0
 
June 9, 2021, 6 a.m. N/A -0.1 ppb (0) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.16 ppb (3) 7.0 μg/m3 (7) 4.0 μg/m3 (17) 23.0
 
June 9, 2021, 5 a.m. N/A -0.1 ppb (0) 1.4 ppb (2) N/A N/A 0.0 ppb (0) N/A 0.16 ppb (3) 8.1 μg/m3 (8) 5.7 μg/m3 (24) 24.0
 
June 9, 2021, 4 a.m. N/A 0.0 ppb (0) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.15 ppb (2) 10.2 μg/m3 (10) 6.7 μg/m3 (28) 28.0
 
June 9, 2021, 3 a.m. N/A 0.0 ppb (0) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.15 ppb (2) 12.3 μg/m3 (12) 7.1 μg/m3 (30) 30.0
 
June 9, 2021, 2 a.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.16 ppb (3) 13.5 μg/m3 (13) 6.5 μg/m3 (28) 28.0
 
June 9, 2021, 1 a.m. N/A 0.0 ppb (0) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.18 ppb (3) 17.8 μg/m3 (17) 8.5 μg/m3 (36) 36.0
 
June 9, 2021, midnight N/A -0.1 ppb (0) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.18 ppb (3) 20.8 μg/m3 (20) 8.7 μg/m3 (37) 37.0
 
June 8, 2021, 11 p.m. N/A 0.0 ppb (0) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.17 ppb (3) 18.8 μg/m3 (18) 8.0 μg/m3 (34) 37.0
 
June 8, 2021, 10 p.m. N/A 0.0 ppb (0) 1.4 ppb (2) N/A N/A N/A 42.0 ppb (39) 0.18 ppb (3) 17.3 μg/m3 (17) 8.1 μg/m3 (34) 39.0
 
June 8, 2021, 9 p.m. N/A 0.0 ppb (0) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.16 ppb (3) 17.2 μg/m3 (16) 8.4 μg/m3 (36) 36.0
 
June 8, 2021, 8 p.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.15 ppb (2) 20.5 μg/m3 (19) 7.5 μg/m3 (32) 40.0
 
June 8, 2021, 7 p.m. N/A 0.0 ppb (0) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.13 ppb (2) 14.7 μg/m3 (14) 8.8 μg/m3 (37) 44.0
 
June 8, 2021, 6 p.m. N/A -0.1 ppb (0) 2.3 ppb (3) N/A N/A 0.0 ppb (0) 54.0 ppb (50) 0.17 ppb (3) 20.3 μg/m3 (19) 14.2 μg/m3 (56) 56.0
 
June 8, 2021, 5 p.m. N/A 0.0 ppb (0) 3.4 ppb (4) N/A N/A 0.0 ppb (0) 56.0 ppb (55) 0.19 ppb (3) 20.6 μg/m3 (20) 14.3 μg/m3 (56) 56.0
 
June 8, 2021, 4 p.m. N/A 0.0 ppb (0) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 53.0 ppb (50) 0.19 ppb (3) 21.9 μg/m3 (21) 16.1 μg/m3 (60) 60.0
 
June 8, 2021, 3 p.m. N/A 0.0 ppb (0) 3.4 ppb (4) N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.2 ppb (3) 22.9 μg/m3 (22) 17.5 μg/m3 (63) 63.0
 
June 8, 2021, 2 p.m. N/A 0.0 ppb (0) 3.6 ppb (4) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.2 ppb (3) 20.9 μg/m3 (20) 14.9 μg/m3 (57) 57.0
 
June 8, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.2 ppb (3) 22.2 μg/m3 (21) 15.2 μg/m3 (58) 58.0
 
June 8, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.25 ppb (3) 21.5 μg/m3 (20) 15.1 μg/m3 (58) 58.0