AQSQID: 371830021

Site Name: Triple Oak - Near Road

Location: Cary, NC

Reporting: True, Located: True

Current AQI: 50.0

Cary NC, US: 35.8652, -78.8197

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 22, 2019, 6 p.m. 10.8 ppb (10) 3.9 ppb (4) N/A 7.0 ppb (6) N/A N/A N/A 0.4 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 22, 2019, 5 p.m. 10.7 ppb (10) 4.4 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.38 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 22, 2019, 4 p.m. 8.4 ppb (8) 3.3 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.38 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 22, 2019, 3 p.m. 10.7 ppb (10) 4.3 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.38 ppb (4) N/A 15.0 μg/m3 (56) 56.0
 
Sept. 22, 2019, 2 p.m. 13.5 ppb (12) 5.9 ppb (5) N/A 8.0 ppb (7) N/A N/A N/A 0.38 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 22, 2019, 1 p.m. 12.2 ppb (11) 5.5 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.33 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 22, 2019, noon 13.6 ppb (13) 6.3 ppb (6) N/A 7.0 ppb (6) N/A N/A N/A 0.29 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 22, 2019, 11 a.m. 13.6 ppb (13) 4.7 ppb (4) N/A 9.0 ppb (8) N/A N/A N/A 0.35 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 22, 2019, 10 a.m. 8.9 ppb (8) 2.6 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.28 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 22, 2019, 9 a.m. 4.4 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.25 ppb (3) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 22, 2019, 8 a.m. 8.0 ppb (7) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 22, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.25 ppb (3) N/A 15.0 μg/m3 (56) 56.0
 
Sept. 22, 2019, 6 a.m. 7.3 ppb (7) 1.4 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.31 ppb (3) N/A 16.0 μg/m3 (59) 59.0
 
Sept. 22, 2019, 5 a.m. 8.8 ppb (8) 1.7 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 22, 2019, 4 a.m. 14.8 ppb (14) 2.8 ppb (3) N/A 12.0 ppb (11) N/A N/A N/A 0.35 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 22, 2019, 3 a.m. 16.0 ppb (15) 2.9 ppb (3) N/A 13.0 ppb (12) N/A N/A N/A 0.42 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 22, 2019, 2 a.m. 12.1 ppb (11) 1.6 ppb (1) N/A 11.0 ppb (10) N/A N/A N/A 0.38 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 22, 2019, 1 a.m. 12.8 ppb (12) 1.8 ppb (2) N/A 11.0 ppb (10) N/A N/A N/A 0.41 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 22, 2019, midnight 16.6 ppb (15) 3.4 ppb (3) N/A 13.0 ppb (12) N/A N/A N/A 0.51 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 21, 2019, 11 p.m. 14.8 ppb (14) 2.6 ppb (2) N/A 12.0 ppb (11) N/A N/A N/A 0.45 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 21, 2019, 10 p.m. 14.0 ppb (13) 3.7 ppb (3) N/A 10.0 ppb (9) N/A N/A N/A 0.48 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 21, 2019, 9 p.m. 15.4 ppb (14) 4.4 ppb (4) N/A 11.0 ppb (10) N/A N/A N/A 0.46 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 21, 2019, 8 p.m. 14.4 ppb (13) 4.5 ppb (4) N/A 10.0 ppb (9) N/A N/A N/A 0.41 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 21, 2019, 7 p.m. 11.2 ppb (10) 4.2 ppb (4) N/A 7.0 ppb (6) N/A N/A N/A 0.39 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 21, 2019, 6 p.m. 13.5 ppb (12) 5.2 ppb (5) N/A 8.0 ppb (7) N/A N/A N/A 0.39 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 21, 2019, 5 p.m. 11.8 ppb (11) 4.6 ppb (4) N/A 7.0 ppb (6) N/A N/A N/A 0.37 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 21, 2019, 4 p.m. 12.5 ppb (12) 5.4 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.39 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 21, 2019, 3 p.m. 12.6 ppb (12) 6.0 ppb (6) N/A 7.0 ppb (6) N/A N/A N/A 0.37 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 21, 2019, 2 p.m. 15.8 ppb (15) 8.0 ppb (7) N/A 8.0 ppb (7) N/A N/A N/A 0.37 ppb (4) N/A 0.0 μg/m3 (0) 15.0
 
Sept. 21, 2019, 1 p.m. 19.1 ppb (18) 10.4 ppb (10) N/A 9.0 ppb (8) N/A N/A N/A 0.4 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 21, 2019, noon 24.3 ppb (23) 12.5 ppb (12) N/A 12.0 ppb (11) N/A N/A N/A 0.45 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 21, 2019, 11 a.m. 31.3 ppb (29) 13.5 ppb (12) N/A 18.0 ppb (17) N/A N/A N/A 0.43 ppb (5) N/A 13.0 μg/m3 (52) 52.0
 
Sept. 21, 2019, 10 a.m. 32.2 ppb (30) 14.1 ppb (13) N/A 18.0 ppb (17) N/A N/A N/A 0.46 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 21, 2019, 9 a.m. 12.6 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (11) N/A N/A N/A 0.3 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 21, 2019, 8 a.m. 15.9 ppb (15) 2.8 ppb (3) N/A 13.0 ppb (12) N/A N/A N/A 0.37 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 21, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.45 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 21, 2019, 6 a.m. 10.1 ppb (9) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.28 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 21, 2019, 5 a.m. 10.2 ppb (9) 0.3 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 21, 2019, 4 a.m. 12.9 ppb (12) 0.3 ppb (0) N/A 13.0 ppb (12) N/A N/A N/A 0.33 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 21, 2019, 3 a.m. 16.0 ppb (15) 0.5 ppb (0) N/A 16.0 ppb (15) N/A N/A N/A 0.35 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 21, 2019, 2 a.m. 14.7 ppb (14) 0.3 ppb (0) N/A 14.0 ppb (13) N/A N/A N/A 0.33 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 21, 2019, 1 a.m. 10.7 ppb (10) 0.3 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A 0.29 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 21, 2019, midnight 10.8 ppb (10) 1.1 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.28 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 20, 2019, 11 p.m. 22.2 ppb (21) 4.7 ppb (4) N/A 18.0 ppb (17) N/A N/A N/A 0.4 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 20, 2019, 10 p.m. 25.9 ppb (24) 8.4 ppb (8) N/A 17.0 ppb (16) N/A N/A N/A 0.4 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 20, 2019, 9 p.m. 19.1 ppb (18) 6.1 ppb (6) N/A 13.0 ppb (12) N/A N/A N/A 0.36 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 20, 2019, 8 p.m. 17.1 ppb (16) 6.5 ppb (6) N/A 11.0 ppb (10) N/A N/A N/A 0.33 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 20, 2019, 7 p.m. 24.6 ppb (23) 10.9 ppb (10) N/A 14.0 ppb (13) N/A N/A N/A 0.4 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 20, 2019, 6 p.m. 22.9 ppb (21) 10.8 ppb (10) N/A 12.0 ppb (11) N/A N/A N/A 0.36 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 20, 2019, 5 p.m. 20.1 ppb (19) 8.9 ppb (8) N/A 11.0 ppb (10) N/A N/A N/A 0.33 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 20, 2019, 4 p.m. 22.7 ppb (21) 10.8 ppb (10) N/A 12.0 ppb (11) N/A N/A N/A 0.34 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 20, 2019, 3 p.m. 21.5 ppb (20) 10.4 ppb (10) N/A 11.0 ppb (10) N/A N/A N/A 0.32 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 20, 2019, 2 p.m. 25.6 ppb (24) 13.3 ppb (12) N/A 12.0 ppb (11) N/A N/A N/A 0.34 ppb (4) N/A 1.0 μg/m3 (4) 24.0
 
Sept. 20, 2019, 1 p.m. 32.5 ppb (30) 17.9 ppb (17) N/A 15.0 ppb (14) N/A N/A N/A 0.36 ppb (4) N/A 5.0 μg/m3 (21) 30.0
 
Sept. 20, 2019, noon 12.2 ppb (11) 3.2 ppb (3) N/A 9.0 ppb (8) N/A N/A N/A 0.23 ppb (3) N/A 1.0 μg/m3 (4) 11.0
 
Sept. 20, 2019, 11 a.m. 9.7 ppb (9) 1.3 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.21 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 20, 2019, 10 a.m. 5.2 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (2) N/A 1.0 μg/m3 (4) 5.0
 
Sept. 20, 2019, 9 a.m. 4.0 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.15 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 20, 2019, 8 a.m. 3.3 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.15 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 20, 2019, 6 a.m. 1.9 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 20, 2019, 5 a.m. 2.6 ppb (2) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 20, 2019, 4 a.m. 4.7 ppb (4) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.17 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 20, 2019, 3 a.m. 10.6 ppb (10) 0.2 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A 0.22 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 20, 2019, 2 a.m. 11.5 ppb (11) 0.9 ppb (1) N/A 11.0 ppb (10) N/A N/A N/A 0.2 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 20, 2019, 1 a.m. 5.7 ppb (5) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.19 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 20, 2019, midnight 5.0 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.18 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 19, 2019, 11 p.m. 10.7 ppb (10) 2.9 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A 0.21 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 19, 2019, 10 p.m. 15.4 ppb (14) 5.7 ppb (5) N/A 10.0 ppb (9) N/A N/A N/A 0.27 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 19, 2019, 9 p.m. 5.9 ppb (5) 2.1 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.18 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 19, 2019, 8 p.m. 11.6 ppb (11) 5.6 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.23 ppb (3) N/A N/A 11.0
 
Sept. 19, 2019, 7 p.m. 10.5 ppb (10) 5.3 ppb (5) N/A 5.0 ppb (5) N/A N/A N/A 0.25 ppb (3) N/A N/A 10.0
 
Sept. 19, 2019, 6 p.m. 10.7 ppb (10) 5.0 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.23 ppb (3) N/A N/A 10.0
 
Sept. 19, 2019, 5 p.m. 12.9 ppb (12) 7.1 ppb (7) N/A 6.0 ppb (6) N/A N/A N/A 0.24 ppb (3) N/A N/A 12.0
 
Sept. 19, 2019, 4 p.m. 10.9 ppb (10) 5.3 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.22 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 19, 2019, 3 p.m. 10.3 ppb (10) 4.4 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.19 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 19, 2019, 2 p.m. 12.0 ppb (11) 6.6 ppb (6) N/A 5.0 ppb (5) N/A N/A N/A 0.24 ppb (3) N/A -1.0 μg/m3 (0) 11.0
 
Sept. 19, 2019, 1 p.m. 7.6 ppb (7) 3.6 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.19 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Sept. 19, 2019, noon 7.1 ppb (7) 2.3 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Sept. 19, 2019, 11 a.m. 10.1 ppb (9) 3.3 ppb (3) N/A 7.0 ppb (6) N/A N/A N/A 0.21 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 19, 2019, 10 a.m. 10.2 ppb (9) 3.7 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.18 ppb (2) N/A 0.0 μg/m3 (0) 9.0
 
Sept. 19, 2019, 9 a.m. 3.9 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.16 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 19, 2019, 8 a.m. 3.1 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.15 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 19, 2019, 6 a.m. 2.5 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.13 ppb (1) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 19, 2019, 5 a.m. 2.5 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 19, 2019, 4 a.m. 4.7 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.17 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 19, 2019, 3 a.m. 15.8 ppb (15) 4.7 ppb (4) N/A 11.0 ppb (10) N/A N/A N/A 0.24 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 19, 2019, 2 a.m. 14.7 ppb (14) 4.0 ppb (4) N/A 11.0 ppb (10) N/A N/A N/A 0.25 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 19, 2019, 1 a.m. 17.3 ppb (16) 3.2 ppb (3) N/A 14.0 ppb (13) N/A N/A N/A 0.23 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 19, 2019, midnight 13.1 ppb (12) 0.7 ppb (1) N/A 12.0 ppb (11) N/A N/A N/A 0.22 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 18, 2019, 11 p.m. 12.0 ppb (11) 2.3 ppb (2) N/A 10.0 ppb (9) N/A N/A N/A 0.25 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 18, 2019, 10 p.m. 9.7 ppb (9) 2.4 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 1.0 μg/m3 (4) 9.0
 
Sept. 18, 2019, 9 p.m. 5.3 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.18 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 18, 2019, 8 p.m. 7.3 ppb (7) 2.5 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.22 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 18, 2019, 7 p.m. 9.7 ppb (9) 3.3 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.23 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 18, 2019, 6 p.m. 7.2 ppb (7) 3.3 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.22 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 18, 2019, 5 p.m. 11.3 ppb (10) 4.9 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.21 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2019, 4 p.m. 7.6 ppb (7) 3.3 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.26 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 18, 2019, 3 p.m. 13.3 ppb (12) 5.8 ppb (5) N/A 8.0 ppb (7) N/A N/A N/A 0.24 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 18, 2019, 2 p.m. 15.9 ppb (15) 7.4 ppb (7) N/A 9.0 ppb (8) N/A N/A N/A 0.24 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 18, 2019, 1 p.m. 10.8 ppb (10) 5.0 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.23 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 18, 2019, noon 16.2 ppb (15) 6.7 ppb (6) N/A 10.0 ppb (9) N/A N/A N/A 0.26 ppb (3) N/A 2.0 μg/m3 (8) 15.0
 
Sept. 18, 2019, 11 a.m. 11.0 ppb (10) 3.0 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A 0.22 ppb (2) N/A 2.0 μg/m3 (8) 10.0
 
Sept. 18, 2019, 10 a.m. 4.0 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2019, 9 a.m. 2.2 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 18, 2019, 8 a.m. 4.6 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.14 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 18, 2019, 6 a.m. 2.3 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 18, 2019, 5 a.m. 5.5 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 18, 2019, 4 a.m. 3.8 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.18 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 18, 2019, 3 a.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.18 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 18, 2019, 2 a.m. 4.5 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 18, 2019, 1 a.m. 4.2 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.19 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 18, 2019, midnight 7.5 ppb (7) 1.2 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.24 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 17, 2019, 11 p.m. 4.3 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.22 ppb (2) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 17, 2019, 10 p.m. 5.5 ppb (5) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.22 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 17, 2019, 9 p.m. 7.7 ppb (7) 2.6 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.24 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
Sept. 17, 2019, 8 p.m. 8.9 ppb (8) 2.9 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.26 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 17, 2019, 7 p.m. 12.2 ppb (11) 5.3 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.29 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 17, 2019, 6 p.m. 10.4 ppb (10) 4.6 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.24 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 17, 2019, 5 p.m. 13.6 ppb (13) 6.6 ppb (6) N/A 7.0 ppb (6) N/A N/A N/A 0.29 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 17, 2019, 4 p.m. 18.7 ppb (17) 8.2 ppb (8) N/A 10.0 ppb (9) N/A N/A N/A 0.35 ppb (4) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 17, 2019, 3 p.m. 16.1 ppb (15) 7.0 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A 0.31 ppb (3) N/A 16.0 μg/m3 (59) 59.0
 
Sept. 17, 2019, 2 p.m. 14.8 ppb (14) 6.7 ppb (6) N/A 8.0 ppb (7) N/A N/A N/A 0.33 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 17, 2019, 1 p.m. 17.8 ppb (16) 7.9 ppb (7) N/A 10.0 ppb (9) N/A N/A N/A 0.33 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 17, 2019, noon 33.0 ppb (31) 21.6 ppb (20) N/A 11.0 ppb (10) N/A N/A N/A 0.42 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 17, 2019, 11 a.m. 16.5 ppb (15) 7.7 ppb (7) N/A 9.0 ppb (8) N/A N/A N/A 0.34 ppb (4) N/A 13.0 μg/m3 (52) 52.0
 
Sept. 17, 2019, 10 a.m. 11.3 ppb (10) 2.8 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A 0.3 ppb (3) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 17, 2019, 9 a.m. 9.1 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.3 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 17, 2019, 8 a.m. 11.6 ppb (11) 1.1 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.32 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 17, 2019, 6 a.m. 12.7 ppb (12) 2.3 ppb (2) N/A 10.0 ppb (9) N/A N/A N/A 0.29 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 17, 2019, 5 a.m. 12.0 ppb (11) 0.5 ppb (0) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
Sept. 17, 2019, 4 a.m. 11.9 ppb (11) 0.4 ppb (0) N/A 12.0 ppb (11) N/A N/A N/A 0.31 ppb (3) N/A N/A 11.0
 
Sept. 17, 2019, 3 a.m. 8.8 ppb (8) 0.5 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.28 ppb (3) N/A N/A 8.0
 
Sept. 17, 2019, 2 a.m. 8.6 ppb (8) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.27 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 17, 2019, 1 a.m. 6.9 ppb (6) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A 0.26 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 17, 2019, midnight 5.8 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.23 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 16, 2019, 11 p.m. 6.5 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.23 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 16, 2019, 10 p.m. 6.4 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.22 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 16, 2019, 9 p.m. 11.7 ppb (11) 3.7 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A 0.26 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 16, 2019, 8 p.m. 10.3 ppb (10) 3.7 ppb (3) N/A 7.0 ppb (6) N/A N/A N/A 0.27 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 16, 2019, 7 p.m. 7.9 ppb (7) 3.3 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.26 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 16, 2019, 6 p.m. 11.7 ppb (11) 4.9 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.27 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 16, 2019, 5 p.m. 12.3 ppb (11) 5.8 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.28 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
Sept. 16, 2019, 4 p.m. 12.8 ppb (12) 6.1 ppb (6) N/A 7.0 ppb (6) N/A N/A N/A 0.27 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 16, 2019, 3 p.m. 10.5 ppb (10) 5.4 ppb (5) N/A 5.0 ppb (5) N/A N/A N/A 0.26 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 16, 2019, 2 p.m. 13.1 ppb (12) 7.4 ppb (7) N/A 6.0 ppb (6) N/A N/A N/A 0.27 ppb (3) N/A 0.0 μg/m3 (0) 12.0
 
Sept. 16, 2019, 1 p.m. 9.9 ppb (9) 5.1 ppb (5) N/A 5.0 ppb (5) N/A N/A N/A 0.24 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2019, noon 14.0 ppb (13) 8.3 ppb (8) N/A 6.0 ppb (6) N/A N/A N/A 0.33 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 16, 2019, 11 a.m. 14.7 ppb (14) 8.9 ppb (8) N/A 6.0 ppb (6) N/A N/A N/A 0.32 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 16, 2019, 10 a.m. 7.1 ppb (7) 3.8 ppb (4) N/A 3.0 ppb (3) N/A N/A N/A 0.22 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 16, 2019, 9 a.m. 3.3 ppb (3) 1.3 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.19 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 16, 2019, 8 a.m. 4.3 ppb (4) 1.6 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.17 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.17 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2019, 6 a.m. 2.9 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.16 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 16, 2019, 5 a.m. 2.5 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 16, 2019, 4 a.m. 4.0 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.21 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 16, 2019, 3 a.m. 5.9 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.24 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 16, 2019, 2 a.m. 7.5 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A 0.24 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 16, 2019, 1 a.m. 10.8 ppb (10) 0.4 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A 0.23 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 16, 2019, midnight 10.3 ppb (10) 0.3 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A 0.2 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 15, 2019, 11 p.m. 4.2 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.19 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 15, 2019, 10 p.m. 4.6 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.21 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 15, 2019, 9 p.m. 4.1 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.21 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 15, 2019, 8 p.m. 7.7 ppb (7) 2.9 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.28 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 15, 2019, 7 p.m. 5.0 ppb (5) 2.3 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.26 ppb (3) N/A 10.0 μg/m3 (42) 42.0