AQSQID: 330150014

Site Name: Portsmouth

Location: Portsmouth, NH

Reporting: True, Located: True

Current AQI: 16.0

Portsmouth NH, US: 43.075367, -70.748014

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 16, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 21.0 ppb (16) N/A 9.0 μg/m3 (8) 3.3 μg/m3 (14) 16.0
 
Sept. 16, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 20.0 ppb (15) N/A 9.0 μg/m3 (8) 3.4 μg/m3 (14) 15.0
 
Sept. 16, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 19.0 ppb (15) N/A 8.0 μg/m3 (7) 3.4 μg/m3 (14) 15.0
 
Sept. 16, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 22.0 ppb (17) N/A 7.0 μg/m3 (6) 3.3 μg/m3 (14) 17.0
 
Sept. 16, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 21.0 ppb (16) N/A 9.0 μg/m3 (8) 3.7 μg/m3 (15) 16.0
 
Sept. 16, 2019, 8 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 22.0 ppb (17) N/A 11.0 μg/m3 (10) 4.3 μg/m3 (18) 18.0
 
Sept. 16, 2019, 7 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 19.0 ppb (15) N/A 16.0 μg/m3 (15) 5.0 μg/m3 (21) 21.0
 
Sept. 16, 2019, 6 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 22.0 ppb (17) N/A 17.0 μg/m3 (15) 4.9 μg/m3 (20) 20.0
 
Sept. 16, 2019, 5 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 20.0 ppb (15) N/A 26.0 μg/m3 (24) 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2019, 4 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 20.0 ppb (15) N/A 21.0 μg/m3 (19) 5.7 μg/m3 (24) 24.0
 
Sept. 16, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 22.0 ppb (17) N/A 10.0 μg/m3 (9) 5.3 μg/m3 (22) 22.0
 
Sept. 16, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 20.0 ppb (15) N/A 11.0 μg/m3 (10) 5.5 μg/m3 (23) 23.0
 
Sept. 16, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 22.0 ppb (17) N/A 10.0 μg/m3 (9) 5.2 μg/m3 (22) 22.0
 
Sept. 16, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A 11.0 μg/m3 (10) 5.3 μg/m3 (22) 22.0
 
Sept. 15, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A 10.0 μg/m3 (9) 5.2 μg/m3 (22) 22.0
 
Sept. 15, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A 11.0 μg/m3 (10) 4.7 μg/m3 (20) 20.0
 
Sept. 15, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 32.0 ppb (25) N/A 10.0 μg/m3 (9) 4.1 μg/m3 (17) 25.0
 
Sept. 15, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 31.0 ppb (24) N/A 10.0 μg/m3 (9) 4.2 μg/m3 (18) 24.0
 
Sept. 15, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 34.0 ppb (26) N/A 9.0 μg/m3 (8) 4.1 μg/m3 (17) 26.0
 
Sept. 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 9.0 μg/m3 (8) 4.1 μg/m3 (17) 28.0
 
Sept. 15, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 35.0 ppb (27) N/A 10.0 μg/m3 (9) 4.5 μg/m3 (19) 27.0
 
Sept. 15, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 32.0 ppb (25) N/A 11.0 μg/m3 (10) 4.7 μg/m3 (20) 25.0
 
Sept. 15, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 30.0 ppb (23) N/A 11.0 μg/m3 (10) 4.9 μg/m3 (20) 23.0
 
Sept. 15, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 10.0 μg/m3 (9) 4.9 μg/m3 (20) 20.0
 
Sept. 15, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 24.0 ppb (18) N/A 10.0 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
Sept. 15, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 18.0 ppb (14) N/A 10.0 μg/m3 (9) 4.8 μg/m3 (20) 20.0
 
Sept. 15, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 12.0 ppb (9) N/A 10.0 μg/m3 (9) 4.8 μg/m3 (20) 20.0
 
Sept. 15, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 12.0 ppb (9) N/A 9.0 μg/m3 (8) 4.7 μg/m3 (20) 20.0
 
Sept. 15, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 14.0 ppb (11) N/A 9.0 μg/m3 (8) 4.7 μg/m3 (20) 20.0
 
Sept. 15, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 14.0 ppb (11) N/A 10.0 μg/m3 (9) 4.8 μg/m3 (20) 20.0
 
Sept. 15, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 16.0 ppb (12) N/A 10.0 μg/m3 (9) 4.7 μg/m3 (20) 20.0
 
Sept. 15, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 18.0 ppb (14) N/A 9.0 μg/m3 (8) 4.4 μg/m3 (18) 18.0
 
Sept. 15, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 18.0 ppb (14) N/A 10.0 μg/m3 (9) 4.6 μg/m3 (19) 19.0
 
Sept. 15, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 16.0 ppb (12) N/A 11.0 μg/m3 (10) 5.4 μg/m3 (23) 23.0
 
Sept. 15, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 14.0 ppb (11) N/A 12.0 μg/m3 (11) 6.3 μg/m3 (26) 26.0
 
Sept. 15, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 14.0 ppb (11) N/A 13.0 μg/m3 (12) 6.9 μg/m3 (29) 29.0
 
Sept. 15, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 16.0 ppb (12) N/A 12.0 μg/m3 (11) 5.9 μg/m3 (25) 25.0
 
Sept. 15, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 19.0 ppb (15) N/A 10.0 μg/m3 (9) 5.2 μg/m3 (22) 22.0
 
Sept. 14, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 19.0 ppb (15) N/A 13.0 μg/m3 (12) 6.1 μg/m3 (25) 25.0
 
Sept. 14, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 21.0 ppb (16) N/A 13.0 μg/m3 (12) 6.1 μg/m3 (25) 25.0
 
Sept. 14, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 22.0 ppb (17) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
Sept. 14, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 23.0 ppb (18) N/A 12.0 μg/m3 (11) 5.5 μg/m3 (23) 23.0
 
Sept. 14, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 22.0 ppb (17) N/A 15.0 μg/m3 (14) 7.0 μg/m3 (29) 29.0
 
Sept. 14, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A 15.0 μg/m3 (14) 6.6 μg/m3 (28) 28.0
 
Sept. 14, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 28.0 ppb (22) N/A 16.0 μg/m3 (15) 6.5 μg/m3 (27) 27.0
 
Sept. 14, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 27.0 ppb (21) N/A 16.0 μg/m3 (15) 6.2 μg/m3 (26) 26.0
 
Sept. 14, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A 14.0 μg/m3 (13) 5.6 μg/m3 (23) 23.0
 
Sept. 14, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A 14.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
Sept. 14, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 23.0 ppb (18) N/A 12.0 μg/m3 (11) 4.8 μg/m3 (20) 20.0
 
Sept. 14, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 22.0 ppb (17) N/A 12.0 μg/m3 (11) 4.9 μg/m3 (20) 20.0
 
Sept. 14, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 21.0 ppb (16) N/A 10.0 μg/m3 (9) 4.6 μg/m3 (19) 19.0
 
Sept. 14, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 19.0 ppb (15) N/A 10.0 μg/m3 (9) 4.7 μg/m3 (20) 20.0
 
Sept. 14, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 9.0 μg/m3 (8) 4.9 μg/m3 (20) 20.0
 
Sept. 14, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 16.0 ppb (12) N/A 9.0 μg/m3 (8) 4.7 μg/m3 (20) 20.0
 
Sept. 14, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 16.0 ppb (12) N/A 10.0 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
Sept. 14, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 10.0 ppb (8) N/A 12.0 μg/m3 (11) 6.3 μg/m3 (26) 26.0
 
Sept. 14, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 13.0 μg/m3 (12) 5.8 μg/m3 (24) 24.0
 
Sept. 14, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 17.0 ppb (13) N/A 11.0 μg/m3 (10) 4.6 μg/m3 (19) 19.0
 
Sept. 14, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A 7.0 μg/m3 (6) 3.3 μg/m3 (14) 20.0
 
Sept. 14, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 27.0 ppb (21) N/A 7.0 μg/m3 (6) 3.3 μg/m3 (14) 21.0
 
Sept. 14, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 29.0 ppb (22) N/A 6.0 μg/m3 (5) 2.9 μg/m3 (12) 22.0
 
Sept. 14, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A 7.0 μg/m3 (6) 3.4 μg/m3 (14) 20.0
 
Sept. 13, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 27.0 ppb (21) N/A 8.0 μg/m3 (7) 3.6 μg/m3 (15) 21.0
 
Sept. 13, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 27.0 ppb (21) N/A 8.0 μg/m3 (7) 3.4 μg/m3 (14) 21.0
 
Sept. 13, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 28.0 ppb (22) N/A 8.0 μg/m3 (7) 3.4 μg/m3 (14) 22.0
 
Sept. 13, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 28.0 ppb (22) N/A 9.0 μg/m3 (8) 3.6 μg/m3 (15) 22.0
 
Sept. 13, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 27.0 ppb (21) N/A 10.0 μg/m3 (9) 3.7 μg/m3 (15) 21.0
 
Sept. 13, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A 12.0 μg/m3 (11) 3.8 μg/m3 (16) 20.0
 
Sept. 13, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A 13.0 μg/m3 (12) 3.8 μg/m3 (16) 19.0
 
Sept. 13, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A 12.0 μg/m3 (11) 4.1 μg/m3 (17) 19.0
 
Sept. 13, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 23.0 ppb (18) N/A 10.0 μg/m3 (9) 4.3 μg/m3 (18) 18.0
 
Sept. 13, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 22.0 ppb (17) N/A 10.0 μg/m3 (9) 4.5 μg/m3 (19) 19.0
 
Sept. 13, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 19.0 ppb (15) N/A 9.0 μg/m3 (8) 4.5 μg/m3 (19) 19.0
 
Sept. 13, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 15.0 ppb (12) N/A 9.0 μg/m3 (8) 4.4 μg/m3 (18) 18.0
 
Sept. 13, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 14.0 ppb (11) N/A 8.0 μg/m3 (7) 4.4 μg/m3 (18) 18.0
 
Sept. 13, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 10.0 ppb (8) N/A 10.0 μg/m3 (9) 4.5 μg/m3 (19) 19.0
 
Sept. 13, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 10.0 ppb (8) N/A 9.0 μg/m3 (8) 4.6 μg/m3 (19) 19.0
 
Sept. 13, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 10.0 ppb (8) N/A 9.0 μg/m3 (8) 4.7 μg/m3 (20) 20.0
 
Sept. 13, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 10.0 ppb (8) N/A 8.0 μg/m3 (7) 4.9 μg/m3 (20) 20.0
 
Sept. 13, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 6.0 ppb (5) N/A 12.0 μg/m3 (11) 5.3 μg/m3 (22) 22.0
 
Sept. 13, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 2.0 ppb (2) N/A 11.0 μg/m3 (10) 5.2 μg/m3 (22) 22.0
 
Sept. 13, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 0.0 ppb (0) N/A 14.0 μg/m3 (13) 7.6 μg/m3 (32) 32.0
 
Sept. 13, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 0.0 ppb (0) N/A 22.0 μg/m3 (20) 9.6 μg/m3 (40) 40.0
 
Sept. 13, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 0.0 ppb (0) N/A 18.0 μg/m3 (16) 9.7 μg/m3 (40) 40.0
 
Sept. 13, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 3.0 ppb (2) N/A 15.0 μg/m3 (14) 7.5 μg/m3 (31) 31.0
 
Sept. 13, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 9.0 ppb (7) N/A 11.0 μg/m3 (10) 6.8 μg/m3 (28) 28.0
 
Sept. 12, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 16.0 ppb (12) N/A 10.0 μg/m3 (9) 4.8 μg/m3 (20) 20.0
 
Sept. 12, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A 8.0 μg/m3 (7) 3.4 μg/m3 (14) 19.0
 
Sept. 12, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A 8.0 μg/m3 (7) 3.2 μg/m3 (13) 19.0
 
Sept. 12, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 23.0 ppb (18) N/A 8.0 μg/m3 (7) 3.3 μg/m3 (14) 18.0
 
Sept. 12, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 22.0 ppb (17) N/A 8.0 μg/m3 (7) 3.4 μg/m3 (14) 17.0
 
Sept. 12, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 19.0 ppb (15) N/A 8.0 μg/m3 (7) 3.5 μg/m3 (15) 15.0
 
Sept. 12, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 17.0 ppb (13) N/A 8.0 μg/m3 (7) 3.4 μg/m3 (14) 14.0
 
Sept. 12, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 17.0 ppb (13) N/A 8.0 μg/m3 (7) 3.4 μg/m3 (14) 14.0
 
Sept. 12, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 18.0 ppb (14) N/A 9.0 μg/m3 (8) 3.3 μg/m3 (14) 14.0
 
Sept. 12, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 21.0 ppb (16) N/A 8.0 μg/m3 (7) 2.5 μg/m3 (10) 16.0
 
Sept. 12, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 20.0 ppb (15) N/A 9.0 μg/m3 (8) 2.9 μg/m3 (12) 15.0
 
Sept. 12, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 19.0 ppb (15) N/A 11.0 μg/m3 (10) 3.1 μg/m3 (13) 15.0
 
Sept. 12, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 16.0 ppb (12) N/A 11.0 μg/m3 (10) 4.0 μg/m3 (17) 17.0
 
Sept. 12, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 15.0 ppb (12) N/A 11.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Sept. 12, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 17.0 ppb (13) N/A 11.0 μg/m3 (10) 6.5 μg/m3 (27) 27.0
 
Sept. 12, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 19.0 ppb (15) N/A 12.0 μg/m3 (11) 7.4 μg/m3 (31) 31.0
 
Sept. 12, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 20.0 ppb (15) N/A 13.0 μg/m3 (12) 8.6 μg/m3 (36) 36.0
 
Sept. 12, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 18.0 ppb (14) N/A 15.0 μg/m3 (14) 10.1 μg/m3 (42) 42.0
 
Sept. 12, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 2.0 ppb (2) N/A 24.0 μg/m3 (22) 12.3 μg/m3 (51) 51.0
 
Sept. 12, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 11.0 ppb (8) N/A 19.0 μg/m3 (17) 11.6 μg/m3 (48) 48.0
 
Sept. 12, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 15.0 ppb (12) N/A 21.0 μg/m3 (19) 12.2 μg/m3 (50) 50.0
 
Sept. 12, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 17.0 ppb (13) N/A 19.0 μg/m3 (17) 12.0 μg/m3 (50) 50.0
 
Sept. 12, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 27.0 ppb (21) N/A 16.0 μg/m3 (15) 10.6 μg/m3 (44) 44.0
 
Sept. 12, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 29.0 ppb (22) N/A 19.0 μg/m3 (17) 10.6 μg/m3 (44) 44.0
 
Sept. 11, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 29.0 ppb (22) N/A 16.0 μg/m3 (15) 9.6 μg/m3 (40) 40.0
 
Sept. 11, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 39.0 ppb (30) N/A 17.0 μg/m3 (15) 9.5 μg/m3 (40) 40.0
 
Sept. 11, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 41.0 ppb (32) N/A 18.0 μg/m3 (16) 9.2 μg/m3 (38) 38.0
 
Sept. 11, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 41.0 ppb (32) N/A 16.0 μg/m3 (15) 9.2 μg/m3 (38) 38.0
 
Sept. 11, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 40.0 ppb (31) N/A 17.0 μg/m3 (15) 9.4 μg/m3 (39) 39.0
 
Sept. 11, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 40.0 ppb (31) N/A 16.0 μg/m3 (15) 9.1 μg/m3 (38) 38.0
 
Sept. 11, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 9.4 μg/m3 (39) 39.0
 
Sept. 11, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 9.4 μg/m3 (39) 39.0
 
Sept. 11, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 8.7 μg/m3 (36) 36.0
 
Sept. 11, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 7.6 μg/m3 (32) 32.0
 
Sept. 11, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 6.9 μg/m3 (29) 29.0
 
Sept. 11, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 6.9 μg/m3 (29) 29.0
 
Sept. 11, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 4.8 μg/m3 (20) 20.0
 
Sept. 11, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 18.0 ppb (14) N/A 9.0 μg/m3 (8) 4.5 μg/m3 (19) 19.0
 
Sept. 11, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 20.0 ppb (15) N/A 10.0 μg/m3 (9) 4.8 μg/m3 (20) 20.0
 
Sept. 11, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 20.0 ppb (15) N/A 11.0 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
Sept. 11, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 21.0 ppb (16) N/A 8.0 μg/m3 (7) 4.2 μg/m3 (18) 18.0
 
Sept. 11, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 22.0 ppb (17) N/A 9.0 μg/m3 (8) 4.2 μg/m3 (18) 18.0
 
Sept. 11, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 23.0 ppb (18) N/A 9.0 μg/m3 (8) 4.1 μg/m3 (17) 18.0
 
Sept. 11, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 22.0 ppb (17) N/A 9.0 μg/m3 (8) 4.4 μg/m3 (18) 18.0
 
Sept. 11, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 21.0 ppb (16) N/A 10.0 μg/m3 (9) 4.8 μg/m3 (20) 20.0
 
Sept. 11, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 23.0 ppb (18) N/A 9.0 μg/m3 (8) 4.8 μg/m3 (20) 20.0
 
Sept. 11, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A 10.0 μg/m3 (9) 4.7 μg/m3 (20) 20.0
 
Sept. 11, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A 9.0 μg/m3 (8) 4.3 μg/m3 (18) 19.0
 
Sept. 10, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A 8.0 μg/m3 (7) 4.1 μg/m3 (17) 19.0
 
Sept. 10, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A 9.0 μg/m3 (8) 3.8 μg/m3 (16) 19.0
 
Sept. 10, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A 7.0 μg/m3 (6) 3.5 μg/m3 (15) 19.0
 
Sept. 10, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A 7.0 μg/m3 (6) 3.5 μg/m3 (15) 20.0
 
Sept. 10, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 28.0 ppb (22) N/A 9.0 μg/m3 (8) 4.1 μg/m3 (17) 22.0
 
Sept. 10, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A 11.0 μg/m3 (10) 4.8 μg/m3 (20) 20.0
 
Sept. 10, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 22.0 ppb (17) N/A 17.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Sept. 10, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 21.0 ppb (16) N/A 17.0 μg/m3 (15) 5.7 μg/m3 (24) 24.0
 
Sept. 10, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 19.0 ppb (15) N/A 13.0 μg/m3 (12) 5.6 μg/m3 (23) 23.0
 
Sept. 10, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 17.0 ppb (13) N/A 16.0 μg/m3 (15) 5.8 μg/m3 (24) 24.0
 
Sept. 10, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 13.0 ppb (10) N/A 19.0 μg/m3 (17) 5.8 μg/m3 (24) 24.0
 
Sept. 10, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 10.0 ppb (8) N/A 11.0 μg/m3 (10) 5.8 μg/m3 (24) 24.0
 
Sept. 10, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 8.0 ppb (6) N/A 11.0 μg/m3 (10) 6.7 μg/m3 (28) 28.0
 
Sept. 10, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 7.0 ppb (5) N/A 12.0 μg/m3 (11) 7.7 μg/m3 (32) 32.0
 
Sept. 10, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 11.0 μg/m3 (10) 6.8 μg/m3 (28) 28.0
 
Sept. 10, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 10.0 ppb (8) N/A 10.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Sept. 10, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 12.0 ppb (9) N/A 10.0 μg/m3 (9) 5.8 μg/m3 (24) 24.0
 
Sept. 10, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 12.0 ppb (9) N/A 10.0 μg/m3 (9) 5.9 μg/m3 (25) 25.0
 
Sept. 10, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A 9.0 μg/m3 (8) 5.3 μg/m3 (22) 22.0
 
Sept. 10, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 8.0 ppb (6) N/A 9.0 μg/m3 (8) 5.4 μg/m3 (23) 23.0
 
Sept. 10, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 8.0 ppb (6) N/A 10.0 μg/m3 (9) 5.8 μg/m3 (24) 24.0
 
Sept. 10, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 15.0 ppb (12) N/A 9.0 μg/m3 (8) 4.7 μg/m3 (20) 20.0
 
Sept. 10, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 23.0 ppb (18) N/A 8.0 μg/m3 (7) 4.3 μg/m3 (18) 18.0
 
Sept. 10, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A 8.0 μg/m3 (7) 4.2 μg/m3 (18) 19.0
 
Sept. 9, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A 9.0 μg/m3 (8) 4.3 μg/m3 (18) 19.0
 
Sept. 9, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A 9.0 μg/m3 (8) 4.3 μg/m3 (18) 20.0
 
Sept. 9, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 30.0 ppb (23) N/A 9.0 μg/m3 (8) 4.1 μg/m3 (17) 23.0
 
Sept. 9, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 28.0 ppb (22) N/A 9.0 μg/m3 (8) 3.9 μg/m3 (16) 22.0
 
Sept. 9, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A 10.0 μg/m3 (9) 3.9 μg/m3 (16) 20.0
 
Sept. 9, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 27.0 ppb (21) N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 21.0
 
Sept. 9, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 28.0 ppb (22) N/A 8.0 μg/m3 (7) 3.7 μg/m3 (15) 22.0
 
Sept. 9, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 24.0 ppb (18) N/A 10.0 μg/m3 (9) 3.6 μg/m3 (15) 18.0
 
Sept. 9, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 23.0 ppb (18) N/A 10.0 μg/m3 (9) 4.1 μg/m3 (17) 18.0
 
Sept. 9, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 18.0 ppb (14) N/A 11.0 μg/m3 (10) 4.1 μg/m3 (17) 17.0