AQSQID: 371830021

Site Name: Triple Oak - Near Road

Location: Cary, NC

Reporting: True, Located: True

Current AQI: 2.0

Cary NC, US: 35.8652, -78.8197

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 21, 2019, 11 p.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.17 ppb (2) N/A N/A 2.0
 
May 21, 2019, 10 p.m. 2.4 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.16 ppb (2) N/A N/A 2.0
 
May 21, 2019, 9 p.m. 6.2 ppb (6) 1.8 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.22 ppb (2) N/A N/A 6.0
 
May 21, 2019, 8 p.m. 16.1 ppb (15) 5.0 ppb (5) N/A 11.0 ppb (10) N/A N/A N/A 0.37 ppb (4) N/A N/A 15.0
 
May 21, 2019, 7 p.m. 16.1 ppb (15) 6.7 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A 0.36 ppb (4) N/A N/A 15.0
 
May 21, 2019, 6 p.m. 14.9 ppb (14) 6.4 ppb (6) N/A 8.0 ppb (7) N/A N/A N/A 0.31 ppb (3) N/A N/A 14.0
 
May 21, 2019, 5 p.m. 17.3 ppb (16) 8.3 ppb (8) N/A 9.0 ppb (8) N/A N/A N/A 0.3 ppb (3) N/A N/A 16.0
 
May 21, 2019, 4 p.m. 9.5 ppb (9) 4.3 ppb (4) N/A 5.0 ppb (5) N/A N/A N/A 0.23 ppb (3) N/A N/A 9.0
 
May 21, 2019, 3 p.m. 11.4 ppb (11) 5.3 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.19 ppb (2) N/A N/A 11.0
 
May 21, 2019, 2 p.m. 7.7 ppb (7) 3.3 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.18 ppb (2) N/A N/A 7.0
 
May 21, 2019, 1 p.m. 6.1 ppb (6) 2.5 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.19 ppb (2) N/A N/A 6.0
 
May 21, 2019, noon 7.7 ppb (7) 2.6 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.23 ppb (3) N/A N/A 7.0
 
May 21, 2019, 11 a.m. 13.7 ppb (13) 4.9 ppb (5) N/A 9.0 ppb (8) N/A N/A N/A 0.29 ppb (3) N/A N/A 13.0
 
May 21, 2019, 10 a.m. 19.9 ppb (18) 8.1 ppb (8) N/A 12.0 ppb (11) N/A N/A N/A 0.34 ppb (4) N/A N/A 18.0
 
May 21, 2019, 9 a.m. 16.8 ppb (16) 3.8 ppb (4) N/A 13.0 ppb (12) N/A N/A N/A 0.28 ppb (3) N/A N/A 16.0
 
May 21, 2019, 8 a.m. 11.6 ppb (11) 1.5 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.23 ppb (3) N/A N/A 11.0
 
May 21, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.19 ppb (2) N/A N/A 2.0
 
May 21, 2019, 6 a.m. 12.8 ppb (12) 3.7 ppb (3) N/A 9.0 ppb (8) N/A N/A N/A 0.19 ppb (2) N/A N/A 12.0
 
May 21, 2019, 5 a.m. 9.5 ppb (9) 2.6 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A N/A 9.0
 
May 21, 2019, 4 a.m. 8.8 ppb (8) 1.8 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A 0.29 ppb (3) N/A N/A 8.0
 
May 21, 2019, 3 a.m. 14.4 ppb (13) 2.7 ppb (3) N/A 12.0 ppb (11) N/A N/A N/A 0.32 ppb (4) N/A N/A 13.0
 
May 21, 2019, 2 a.m. 16.3 ppb (15) 3.8 ppb (4) N/A 12.0 ppb (11) N/A N/A N/A 0.35 ppb (4) N/A N/A 15.0
 
May 21, 2019, 1 a.m. 15.4 ppb (14) 3.8 ppb (4) N/A 12.0 ppb (11) N/A N/A N/A 0.34 ppb (4) N/A N/A 14.0
 
May 21, 2019, midnight 21.5 ppb (20) 5.4 ppb (5) N/A 16.0 ppb (15) N/A N/A N/A 0.46 ppb (5) N/A N/A 20.0
 
May 20, 2019, 11 p.m. 21.8 ppb (20) 7.2 ppb (7) N/A 15.0 ppb (14) N/A N/A N/A 0.5 ppb (6) N/A N/A 20.0
 
May 20, 2019, 10 p.m. 17.0 ppb (16) 6.1 ppb (6) N/A 11.0 ppb (10) N/A N/A N/A 0.42 ppb (5) N/A N/A 16.0
 
May 20, 2019, 9 p.m. 18.4 ppb (17) 7.8 ppb (7) N/A 11.0 ppb (10) N/A N/A N/A 0.41 ppb (5) N/A N/A 17.0
 
May 20, 2019, 8 p.m. 19.4 ppb (18) 8.9 ppb (8) N/A 10.0 ppb (9) N/A N/A N/A 0.45 ppb (5) N/A N/A 18.0
 
May 20, 2019, 7 p.m. 18.4 ppb (17) 9.5 ppb (9) N/A 9.0 ppb (8) N/A N/A N/A 0.37 ppb (4) N/A N/A 17.0
 
May 20, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 0.38 ppb (4) N/A N/A 4.0
 
May 20, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 0.34 ppb (4) N/A N/A 4.0
 
May 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 0.36 ppb (4) N/A N/A 4.0
 
May 20, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 0.32 ppb (4) N/A N/A 4.0
 
May 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
May 20, 2019, 1 p.m. 21.5 ppb (20) 13.2 ppb (12) N/A 8.0 ppb (7) N/A N/A N/A 0.31 ppb (3) N/A N/A 20.0
 
May 20, 2019, noon 22.4 ppb (21) 13.4 ppb (12) N/A 9.0 ppb (8) N/A N/A N/A 0.34 ppb (4) N/A N/A 21.0
 
May 20, 2019, 11 a.m. 20.8 ppb (19) 11.9 ppb (11) N/A 9.0 ppb (8) N/A N/A N/A 0.33 ppb (4) N/A N/A 19.0
 
May 20, 2019, 10 a.m. 26.6 ppb (25) 15.2 ppb (14) N/A 11.0 ppb (10) N/A N/A N/A 0.38 ppb (4) N/A N/A 25.0
 
May 20, 2019, 9 a.m. 18.4 ppb (17) 8.3 ppb (8) N/A 10.0 ppb (9) N/A N/A N/A 0.27 ppb (3) N/A N/A 17.0
 
May 20, 2019, 8 a.m. 12.2 ppb (11) 5.5 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.21 ppb (2) N/A N/A 11.0
 
May 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.16 ppb (2) N/A N/A 2.0
 
May 20, 2019, 6 a.m. 5.6 ppb (5) 2.2 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.15 ppb (2) N/A N/A 5.0
 
May 20, 2019, 5 a.m. 4.7 ppb (4) 1.7 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A N/A 4.0
 
May 20, 2019, 4 a.m. 5.9 ppb (5) 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.22 ppb (2) N/A N/A 5.0
 
May 20, 2019, 3 a.m. 4.9 ppb (5) 1.4 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.22 ppb (2) N/A N/A 5.0
 
May 20, 2019, 2 a.m. 7.7 ppb (7) 1.7 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.22 ppb (2) N/A N/A 7.0
 
May 20, 2019, 1 a.m. 11.5 ppb (11) 2.8 ppb (3) N/A 9.0 ppb (8) N/A N/A N/A 0.32 ppb (4) N/A N/A 11.0
 
May 20, 2019, midnight 14.3 ppb (13) 3.7 ppb (3) N/A 11.0 ppb (10) N/A N/A N/A 0.41 ppb (5) N/A N/A 13.0
 
May 19, 2019, 11 p.m. 11.0 ppb (10) 3.1 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A 0.4 ppb (4) N/A N/A 10.0
 
May 19, 2019, 10 p.m. 11.8 ppb (11) 3.6 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A 0.45 ppb (5) N/A N/A 11.0
 
May 19, 2019, 9 p.m. 9.6 ppb (9) 3.3 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.38 ppb (4) N/A N/A 9.0
 
May 19, 2019, 8 p.m. 9.3 ppb (9) 3.5 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.39 ppb (4) N/A N/A 9.0
 
May 19, 2019, 7 p.m. 9.7 ppb (9) 3.6 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.34 ppb (4) N/A N/A 9.0
 
May 19, 2019, 6 p.m. 8.8 ppb (8) 3.4 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.35 ppb (4) N/A N/A 8.0
 
May 19, 2019, 5 p.m. 9.0 ppb (8) 3.3 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.36 ppb (4) N/A N/A 8.0
 
May 19, 2019, 4 p.m. 8.5 ppb (8) 3.4 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.38 ppb (4) N/A N/A 8.0
 
May 19, 2019, 3 p.m. 7.5 ppb (7) 3.1 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.35 ppb (4) N/A N/A 7.0
 
May 19, 2019, 2 p.m. 7.8 ppb (7) 3.3 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.34 ppb (4) N/A N/A 7.0
 
May 19, 2019, 1 p.m. 7.3 ppb (7) 3.0 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.32 ppb (4) N/A N/A 7.0
 
May 19, 2019, noon 8.5 ppb (8) 3.8 ppb (4) N/A 5.0 ppb (5) N/A N/A N/A 0.31 ppb (3) N/A N/A 8.0
 
May 19, 2019, 11 a.m. 9.0 ppb (8) 2.6 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A N/A 8.0
 
May 19, 2019, 10 a.m. 12.4 ppb (11) 3.7 ppb (3) N/A 9.0 ppb (8) N/A N/A N/A 0.34 ppb (4) N/A N/A 11.0
 
May 19, 2019, 9 a.m. 7.7 ppb (7) 1.4 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.34 ppb (4) N/A N/A 7.0
 
May 19, 2019, 8 a.m. 8.7 ppb (8) 1.3 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.25 ppb (3) N/A N/A 8.0
 
May 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.21 ppb (2) N/A N/A 2.0
 
May 19, 2019, 6 a.m. 5.9 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.24 ppb (3) N/A N/A 5.0
 
May 19, 2019, 5 a.m. 8.8 ppb (8) 0.8 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A N/A 8.0
 
May 19, 2019, 4 a.m. 11.5 ppb (11) 1.3 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.37 ppb (4) N/A N/A 11.0
 
May 19, 2019, 3 a.m. 11.7 ppb (11) 0.7 ppb (1) N/A 11.0 ppb (10) N/A N/A N/A 0.42 ppb (5) N/A N/A 11.0
 
May 19, 2019, 2 a.m. 14.3 ppb (13) 2.3 ppb (2) N/A 12.0 ppb (11) N/A N/A N/A 0.38 ppb (4) N/A N/A 13.0
 
May 19, 2019, 1 a.m. 5.5 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (3) N/A N/A 5.0
 
May 19, 2019, midnight 2.2 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.23 ppb (3) N/A N/A 3.0
 
May 18, 2019, 11 p.m. 4.7 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.27 ppb (3) N/A N/A 4.0
 
May 18, 2019, 10 p.m. 14.2 ppb (13) 3.5 ppb (3) N/A 11.0 ppb (10) N/A N/A N/A 0.47 ppb (5) N/A N/A 13.0
 
May 18, 2019, 9 p.m. 13.9 ppb (13) 4.6 ppb (4) N/A 9.0 ppb (8) N/A N/A N/A 0.47 ppb (5) N/A N/A 13.0
 
May 18, 2019, 8 p.m. 12.4 ppb (11) 3.6 ppb (3) N/A 9.0 ppb (8) N/A N/A N/A 0.42 ppb (5) N/A N/A 11.0
 
May 18, 2019, 7 p.m. 9.1 ppb (8) 2.7 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.34 ppb (4) N/A N/A 8.0
 
May 18, 2019, 6 p.m. 10.7 ppb (10) 3.4 ppb (3) N/A 7.0 ppb (6) N/A N/A N/A 0.39 ppb (4) N/A N/A 10.0
 
May 18, 2019, 5 p.m. 2.0 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.22 ppb (2) N/A N/A 2.0
 
May 18, 2019, 4 p.m. 5.4 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) N/A N/A 5.0
 
May 18, 2019, 3 p.m. 7.3 ppb (7) 2.2 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.38 ppb (4) N/A N/A 7.0
 
May 18, 2019, 2 p.m. 6.4 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.32 ppb (4) N/A N/A 6.0
 
May 18, 2019, 1 p.m. 12.0 ppb (11) 3.5 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A 0.35 ppb (4) N/A N/A 11.0
 
May 18, 2019, noon 14.9 ppb (14) 4.9 ppb (5) N/A 10.0 ppb (9) N/A N/A N/A 0.41 ppb (5) N/A N/A 14.0
 
May 18, 2019, 11 a.m. 29.1 ppb (27) 19.5 ppb (18) N/A 10.0 ppb (9) N/A N/A N/A 0.53 ppb (6) N/A N/A 27.0
 
May 18, 2019, 10 a.m. 30.1 ppb (28) 22.3 ppb (21) N/A 8.0 ppb (7) N/A N/A N/A 0.45 ppb (5) N/A N/A 28.0
 
May 18, 2019, 9 a.m. 12.3 ppb (11) 2.6 ppb (2) N/A 10.0 ppb (9) N/A N/A N/A 0.37 ppb (4) N/A N/A 11.0
 
May 18, 2019, 8 a.m. 8.2 ppb (8) 0.7 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.32 ppb (4) N/A N/A 8.0
 
May 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.41 ppb (5) N/A N/A 5.0
 
May 18, 2019, 6 a.m. 26.4 ppb (24) 6.0 ppb (6) N/A 20.0 ppb (19) N/A N/A N/A 0.59 ppb (7) N/A N/A 24.0
 
May 18, 2019, 5 a.m. 18.7 ppb (17) 2.6 ppb (2) N/A 16.0 ppb (15) N/A N/A N/A N/A N/A N/A 17.0
 
May 18, 2019, 4 a.m. 10.9 ppb (10) 1.1 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.38 ppb (4) N/A N/A 10.0
 
May 18, 2019, 3 a.m. 13.5 ppb (12) 0.8 ppb (1) N/A 13.0 ppb (12) N/A N/A N/A 0.42 ppb (5) N/A N/A 12.0
 
May 18, 2019, 2 a.m. 16.3 ppb (15) 2.1 ppb (2) N/A 14.0 ppb (13) N/A N/A N/A 0.42 ppb (5) N/A N/A 15.0
 
May 18, 2019, 1 a.m. 6.8 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.28 ppb (3) N/A N/A 6.0
 
May 18, 2019, midnight 19.8 ppb (18) 3.3 ppb (3) N/A 16.0 ppb (15) N/A N/A N/A 0.51 ppb (6) N/A N/A 18.0
 
May 17, 2019, 11 p.m. 24.5 ppb (23) 5.3 ppb (5) N/A 19.0 ppb (18) N/A N/A N/A 0.62 ppb (7) N/A N/A 23.0
 
May 17, 2019, 10 p.m. 19.9 ppb (18) 5.8 ppb (5) N/A 14.0 ppb (13) N/A N/A N/A 0.53 ppb (6) N/A N/A 18.0
 
May 17, 2019, 9 p.m. 16.4 ppb (15) 6.3 ppb (6) N/A 10.0 ppb (9) N/A N/A N/A 0.4 ppb (4) N/A N/A 15.0
 
May 17, 2019, 8 p.m. 16.0 ppb (15) 6.5 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A 0.41 ppb (5) N/A N/A 15.0
 
May 17, 2019, 7 p.m. 18.4 ppb (17) 8.7 ppb (8) N/A 10.0 ppb (9) N/A N/A N/A 0.42 ppb (5) N/A N/A 17.0
 
May 17, 2019, 6 p.m. 17.7 ppb (16) 8.2 ppb (8) N/A 9.0 ppb (8) N/A N/A N/A 0.42 ppb (5) N/A N/A 16.0
 
May 17, 2019, 5 p.m. 19.8 ppb (18) 9.2 ppb (9) N/A 11.0 ppb (10) N/A N/A N/A 0.39 ppb (4) N/A N/A 18.0
 
May 17, 2019, 4 p.m. 25.0 ppb (23) 12.3 ppb (11) N/A 13.0 ppb (12) N/A N/A N/A N/A N/A N/A 23.0
 
May 17, 2019, 3 p.m. 29.3 ppb (27) 13.4 ppb (12) N/A 16.0 ppb (15) N/A N/A N/A N/A N/A N/A 27.0
 
May 17, 2019, 2 p.m. 31.9 ppb (30) 17.2 ppb (16) N/A 15.0 ppb (14) N/A N/A N/A 0.45 ppb (5) N/A N/A 30.0
 
May 17, 2019, 1 p.m. 32.3 ppb (30) 17.8 ppb (16) N/A 14.0 ppb (13) N/A N/A N/A 0.45 ppb (5) N/A N/A 30.0
 
May 17, 2019, noon 30.3 ppb (28) 16.6 ppb (15) N/A 14.0 ppb (13) N/A N/A N/A 0.46 ppb (5) N/A N/A 28.0
 
May 17, 2019, 11 a.m. 42.9 ppb (40) 25.2 ppb (23) N/A 18.0 ppb (17) N/A N/A N/A 0.53 ppb (6) N/A N/A 40.0
 
May 17, 2019, 10 a.m. 42.6 ppb (39) 22.2 ppb (21) N/A 20.0 ppb (19) N/A N/A N/A 0.52 ppb (6) N/A N/A 39.0
 
May 17, 2019, 9 a.m. 25.3 ppb (23) 10.4 ppb (10) N/A 15.0 ppb (14) N/A N/A N/A 0.39 ppb (4) N/A N/A 23.0
 
May 17, 2019, 8 a.m. 6.2 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.25 ppb (3) N/A N/A 6.0
 
May 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.26 ppb (3) N/A N/A 3.0
 
May 17, 2019, 6 a.m. 12.0 ppb (11) 0.5 ppb (0) N/A 12.0 ppb (11) N/A N/A N/A 0.32 ppb (4) N/A N/A 11.0
 
May 17, 2019, 5 a.m. 24.9 ppb (23) 3.8 ppb (4) N/A 21.0 ppb (19) N/A N/A N/A N/A N/A N/A 23.0
 
May 17, 2019, 4 a.m. 26.5 ppb (25) 3.0 ppb (3) N/A 24.0 ppb (22) N/A N/A N/A 0.49 ppb (5) N/A N/A 25.0
 
May 17, 2019, 3 a.m. 23.3 ppb (22) 1.6 ppb (1) N/A 22.0 ppb (20) N/A N/A N/A 0.43 ppb (5) N/A N/A 22.0
 
May 17, 2019, 2 a.m. 20.8 ppb (19) 1.0 ppb (1) N/A 20.0 ppb (19) N/A N/A N/A 0.39 ppb (4) N/A N/A 19.0
 
May 17, 2019, 1 a.m. 11.5 ppb (11) 0.4 ppb (0) N/A 11.0 ppb (10) N/A N/A N/A 0.3 ppb (3) N/A N/A 11.0
 
May 17, 2019, midnight 4.1 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.23 ppb (3) N/A N/A 4.0
 
May 16, 2019, 11 p.m. 23.0 ppb (21) 6.9 ppb (6) N/A 16.0 ppb (15) N/A N/A N/A 0.5 ppb (6) N/A N/A 21.0
 
May 16, 2019, 10 p.m. 21.1 ppb (20) 7.4 ppb (7) N/A 14.0 ppb (13) N/A N/A N/A 0.43 ppb (5) N/A N/A 20.0
 
May 16, 2019, 9 p.m. 18.6 ppb (17) 6.8 ppb (6) N/A 12.0 ppb (11) N/A N/A N/A 0.37 ppb (4) N/A N/A 17.0
 
May 16, 2019, 8 p.m. 19.9 ppb (18) 8.2 ppb (8) N/A 12.0 ppb (11) N/A N/A N/A 0.35 ppb (4) N/A N/A 18.0
 
May 16, 2019, 7 p.m. 18.4 ppb (17) 8.1 ppb (8) N/A 10.0 ppb (9) N/A N/A N/A 0.34 ppb (4) N/A N/A 17.0
 
May 16, 2019, 6 p.m. 22.9 ppb (21) 10.1 ppb (9) N/A 13.0 ppb (12) N/A N/A N/A 0.38 ppb (4) N/A N/A 21.0
 
May 16, 2019, 5 p.m. 23.8 ppb (22) 11.3 ppb (10) N/A 13.0 ppb (12) N/A N/A N/A 0.34 ppb (4) N/A N/A 22.0
 
May 16, 2019, 4 p.m. 24.1 ppb (22) 11.6 ppb (11) N/A 13.0 ppb (12) N/A N/A N/A 0.34 ppb (4) N/A N/A 22.0
 
May 16, 2019, 3 p.m. 24.7 ppb (23) 11.5 ppb (11) N/A 13.0 ppb (12) N/A N/A N/A 0.39 ppb (4) N/A N/A 23.0
 
May 16, 2019, 2 p.m. 21.2 ppb (20) 9.0 ppb (8) N/A 12.0 ppb (11) N/A N/A N/A 0.31 ppb (3) N/A N/A 20.0
 
May 16, 2019, 1 p.m. 28.1 ppb (26) 14.9 ppb (14) N/A 13.0 ppb (12) N/A N/A N/A 0.33 ppb (4) N/A N/A 26.0
 
May 16, 2019, noon 29.1 ppb (27) 15.7 ppb (15) N/A 13.0 ppb (12) N/A N/A N/A 0.43 ppb (5) N/A N/A 27.0
 
May 16, 2019, 11 a.m. 46.0 ppb (43) 29.4 ppb (27) N/A 17.0 ppb (16) N/A N/A N/A 0.58 ppb (6) N/A N/A 43.0
 
May 16, 2019, 10 a.m. 59.9 ppb (56) 41.0 ppb (38) N/A 19.0 ppb (18) N/A N/A N/A 0.63 ppb (7) N/A N/A 56.0
 
May 16, 2019, 9 a.m. 28.7 ppb (27) 11.0 ppb (10) N/A 18.0 ppb (17) N/A N/A N/A 0.35 ppb (4) N/A N/A 27.0
 
May 16, 2019, 8 a.m. 20.7 ppb (19) 4.5 ppb (4) N/A 16.0 ppb (15) N/A N/A N/A 0.27 ppb (3) N/A N/A 19.0
 
May 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.23 ppb (3) N/A N/A 3.0
 
May 16, 2019, 6 a.m. 7.9 ppb (7) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.22 ppb (2) N/A N/A 7.0
 
May 16, 2019, 5 a.m. 8.9 ppb (8) 0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A N/A 8.0
 
May 16, 2019, 4 a.m. 11.8 ppb (11) 0.3 ppb (0) N/A 11.0 ppb (10) N/A N/A N/A 0.28 ppb (3) N/A N/A 11.0
 
May 16, 2019, 3 a.m. 11.9 ppb (11) 0.3 ppb (0) N/A 12.0 ppb (11) N/A N/A N/A 0.28 ppb (3) N/A N/A 11.0
 
May 16, 2019, 2 a.m. 17.4 ppb (16) 1.4 ppb (1) N/A 16.0 ppb (15) N/A N/A N/A 0.31 ppb (3) N/A N/A 16.0
 
May 16, 2019, 1 a.m. 9.9 ppb (9) 0.3 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A 0.24 ppb (3) N/A N/A 9.0
 
May 16, 2019, midnight 13.2 ppb (12) 3.0 ppb (3) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A N/A 12.0
 
May 15, 2019, 11 p.m. 24.3 ppb (23) 9.1 ppb (8) N/A 15.0 ppb (14) N/A N/A N/A 0.43 ppb (5) N/A N/A 23.0
 
May 15, 2019, 10 p.m. 21.3 ppb (20) 8.9 ppb (8) N/A 12.0 ppb (11) N/A N/A N/A 0.37 ppb (4) N/A N/A 20.0
 
May 15, 2019, 9 p.m. 19.7 ppb (18) 8.9 ppb (8) N/A 11.0 ppb (10) N/A N/A N/A 0.32 ppb (4) N/A N/A 18.0
 
May 15, 2019, 8 p.m. 19.4 ppb (18) 9.3 ppb (9) N/A 10.0 ppb (9) N/A N/A N/A 0.32 ppb (4) N/A N/A 18.0
 
May 15, 2019, 7 p.m. 20.6 ppb (19) 10.7 ppb (10) N/A 10.0 ppb (9) N/A N/A N/A 0.29 ppb (3) N/A N/A 19.0
 
May 15, 2019, 6 p.m. 17.5 ppb (16) 8.3 ppb (8) N/A 9.0 ppb (8) N/A N/A N/A 0.28 ppb (3) N/A N/A 16.0
 
May 15, 2019, 5 p.m. 19.6 ppb (18) 9.6 ppb (9) N/A 10.0 ppb (9) N/A N/A N/A 0.29 ppb (3) N/A N/A 18.0
 
May 15, 2019, 4 p.m. 27.1 ppb (25) 14.0 ppb (13) N/A 13.0 ppb (12) N/A N/A N/A 0.35 ppb (4) N/A N/A 25.0
 
May 15, 2019, 3 p.m. 14.9 ppb (14) 7.7 ppb (7) N/A 7.0 ppb (6) N/A N/A N/A 0.21 ppb (2) N/A N/A 14.0
 
May 15, 2019, 2 p.m. 11.7 ppb (11) 5.4 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A N/A 11.0
 
May 15, 2019, 1 p.m. 20.0 ppb (19) 9.9 ppb (9) N/A 10.0 ppb (9) N/A N/A N/A 0.28 ppb (3) N/A N/A 19.0
 
May 15, 2019, noon 36.7 ppb (34) 20.3 ppb (19) N/A 16.0 ppb (15) N/A N/A N/A 0.4 ppb (4) N/A N/A 34.0
 
May 15, 2019, 11 a.m. 45.6 ppb (42) 35.0 ppb (32) N/A 11.0 ppb (10) N/A N/A N/A 0.5 ppb (6) N/A N/A 42.0
 
May 15, 2019, 10 a.m. 51.8 ppb (48) 41.9 ppb (39) N/A 10.0 ppb (9) N/A N/A N/A 0.51 ppb (6) N/A N/A 48.0
 
May 15, 2019, 9 a.m. 27.7 ppb (26) 17.0 ppb (16) N/A 11.0 ppb (10) N/A N/A N/A 0.32 ppb (4) N/A N/A 26.0
 
May 15, 2019, 8 a.m. 29.5 ppb (27) 16.1 ppb (15) N/A 13.0 ppb (12) N/A N/A N/A 0.3 ppb (3) N/A N/A 27.0
 
May 15, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.26 ppb (3) N/A N/A 3.0
 
May 15, 2019, 6 a.m. 9.8 ppb (9) 0.8 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A 0.18 ppb (2) N/A N/A 9.0
 
May 15, 2019, 5 a.m. 12.4 ppb (11) 0.3 ppb (0) N/A 12.0 ppb (11) N/A N/A N/A N/A N/A N/A 11.0
 
May 15, 2019, 4 a.m. 10.8 ppb (10) 0.8 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.2 ppb (2) N/A N/A 10.0
 
May 15, 2019, 3 a.m. 14.8 ppb (14) 2.2 ppb (2) N/A 13.0 ppb (12) N/A N/A N/A 0.25 ppb (3) N/A N/A 14.0
 
May 15, 2019, 2 a.m. 6.8 ppb (6) 0.1 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A 0.19 ppb (2) N/A N/A 6.0
 
May 15, 2019, 1 a.m. 4.7 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.18 ppb (2) N/A N/A 4.0
 
May 15, 2019, midnight 2.0 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) N/A N/A 2.0