AQSQID: 371830021

Site Name: Triple Oak - Near Road

Location: Cary, NC

Reporting: True, Located: True

Current AQI: 12.0

Cary NC, US: 35.8652, -78.8197

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 21, 2019, 9 a.m. 6.4 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.11 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 21, 2019, 8 a.m. 2.0 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.11 ppb (1) N/A 1.0 μg/m3 (4) 4.0
 
Jan. 21, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.11 ppb (1) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 21, 2019, 6 a.m. 3.3 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.11 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 21, 2019, 5 a.m. 4.6 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Jan. 21, 2019, 4 a.m. 2.5 ppb (2) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.11 ppb (1) N/A 1.0 μg/m3 (4) 4.0
 
Jan. 21, 2019, 3 a.m. 7.4 ppb (7) 2.8 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 21, 2019, 2 a.m. 6.7 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (2) N/A 1.0 μg/m3 (4) 6.0
 
Jan. 21, 2019, 1 a.m. 4.8 ppb (4) 1.6 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 21, 2019, midnight 8.9 ppb (8) 2.7 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.19 ppb (2) N/A 1.0 μg/m3 (4) 8.0
 
Jan. 20, 2019, 11 p.m. 9.2 ppb (9) 3.2 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.21 ppb (2) N/A 2.0 μg/m3 (8) 9.0
 
Jan. 20, 2019, 10 p.m. 10.3 ppb (10) 4.8 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.25 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 20, 2019, 9 p.m. 5.9 ppb (5) 3.0 ppb (3) N/A 3.0 ppb (3) N/A N/A N/A 0.2 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 20, 2019, 8 p.m. 4.9 ppb (5) 1.9 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.18 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Jan. 20, 2019, 7 p.m. 5.8 ppb (5) 3.0 ppb (3) N/A 3.0 ppb (3) N/A N/A N/A 0.19 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 20, 2019, 6 p.m. 8.1 ppb (8) 4.3 ppb (4) N/A 4.0 ppb (4) N/A N/A N/A 0.24 ppb (3) N/A N/A 8.0
 
Jan. 20, 2019, 5 p.m. 6.4 ppb (6) 3.5 ppb (3) N/A 3.0 ppb (3) N/A N/A N/A 0.23 ppb (3) N/A -2.0 μg/m3 (0) 6.0
 
Jan. 20, 2019, 4 p.m. 6.3 ppb (6) 3.3 ppb (3) N/A 3.0 ppb (3) N/A N/A N/A 0.24 ppb (3) N/A 0.0 μg/m3 (0) 6.0
 
Jan. 20, 2019, 3 p.m. 8.6 ppb (8) 4.2 ppb (4) N/A 4.0 ppb (4) N/A N/A N/A 0.25 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 20, 2019, 2 p.m. 11.2 ppb (10) 6.2 ppb (6) N/A 5.0 ppb (5) N/A N/A N/A 0.25 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 20, 2019, 1 p.m. 9.7 ppb (9) 5.3 ppb (5) N/A 4.0 ppb (4) N/A N/A N/A 0.26 ppb (3) N/A 1.0 μg/m3 (4) 9.0
 
Jan. 20, 2019, noon 5.0 ppb (5) 2.4 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.21 ppb (2) N/A 0.0 μg/m3 (0) 5.0
 
Jan. 20, 2019, 11 a.m. 5.0 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.18 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 20, 2019, 10 a.m. 3.5 ppb (3) 1.6 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.17 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 20, 2019, 9 a.m. 2.5 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.17 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 20, 2019, 8 a.m. 3.1 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.2 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2019, 6 a.m. 6.0 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.21 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2019, 5 a.m. 7.0 ppb (6) 1.4 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2019, 4 a.m. 10.0 ppb (9) 3.2 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
 
Jan. 20, 2019, 3 a.m. 7.0 ppb (6) 2.9 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.22 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 20, 2019, 2 a.m. 6.5 ppb (6) 2.4 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.26 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2019, 1 a.m. 9.2 ppb (9) 3.9 ppb (4) N/A 5.0 ppb (5) N/A N/A N/A 0.27 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2019, midnight 14.6 ppb (14) 4.6 ppb (4) N/A 10.0 ppb (9) N/A N/A N/A 0.35 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2019, 11 p.m. 17.1 ppb (16) 5.5 ppb (5) N/A 12.0 ppb (11) N/A N/A N/A 0.37 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2019, 10 p.m. 16.8 ppb (16) 5.2 ppb (5) N/A 12.0 ppb (11) N/A N/A N/A 0.35 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2019, 9 p.m. 10.7 ppb (10) 3.6 ppb (3) N/A 7.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2019, 8 p.m. 16.5 ppb (15) 6.5 ppb (6) N/A 10.0 ppb (9) N/A N/A N/A 0.37 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2019, 7 p.m. 13.7 ppb (13) 5.5 ppb (5) N/A 8.0 ppb (7) N/A N/A N/A 0.33 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2019, 6 p.m. 20.8 ppb (19) 9.9 ppb (9) N/A 11.0 ppb (10) N/A N/A N/A 0.37 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2019, 5 p.m. 14.7 ppb (14) 6.2 ppb (6) N/A 8.0 ppb (7) N/A N/A N/A 0.34 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2019, 4 p.m. 13.5 ppb (12) 6.4 ppb (6) N/A 7.0 ppb (6) N/A N/A N/A 0.29 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2019, 3 p.m. 9.5 ppb (9) 3.5 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.26 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2019, 2 p.m. 16.5 ppb (15) 8.5 ppb (8) N/A 8.0 ppb (7) N/A N/A N/A 0.3 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2019, 1 p.m. 9.3 ppb (9) 3.8 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.24 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2019, noon 9.6 ppb (9) 3.9 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.22 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, 11 a.m. 12.3 ppb (11) 5.5 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.26 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 19, 2019, 10 a.m. 8.9 ppb (8) 2.7 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.25 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, 9 a.m. 14.2 ppb (13) 4.3 ppb (4) N/A 10.0 ppb (9) N/A N/A N/A 0.34 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2019, 8 a.m. 20.8 ppb (19) 8.8 ppb (8) N/A 12.0 ppb (11) N/A N/A N/A 0.37 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.58 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2019, 6 a.m. 25.5 ppb (24) 11.7 ppb (11) N/A 14.0 ppb (13) N/A N/A N/A 0.48 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 19, 2019, 5 a.m. 26.6 ppb (25) 10.1 ppb (9) N/A 16.0 ppb (15) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 25.0
 
Jan. 19, 2019, 4 a.m. 40.8 ppb (38) 22.7 ppb (21) N/A 18.0 ppb (17) N/A N/A N/A 0.53 ppb (6) N/A 7.0 μg/m3 (29) 38.0
 
Jan. 19, 2019, 3 a.m. 25.5 ppb (24) 7.1 ppb (7) N/A 18.0 ppb (17) N/A N/A N/A 0.44 ppb (5) N/A 5.0 μg/m3 (21) 24.0
 
Jan. 19, 2019, 2 a.m. 35.5 ppb (33) 15.7 ppb (15) N/A 20.0 ppb (19) N/A N/A N/A 0.5 ppb (6) N/A 5.0 μg/m3 (21) 33.0
 
Jan. 19, 2019, 1 a.m. 37.8 ppb (35) 15.1 ppb (14) N/A 23.0 ppb (21) N/A N/A N/A 0.51 ppb (6) N/A 4.0 μg/m3 (17) 35.0
 
Jan. 19, 2019, midnight 20.8 ppb (19) 4.9 ppb (5) N/A 16.0 ppb (15) N/A N/A N/A 0.35 ppb (4) N/A 0.0 μg/m3 (0) 19.0
 
Jan. 18, 2019, 11 p.m. 10.4 ppb (10) 1.4 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A 0.26 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 18, 2019, 10 p.m. 12.2 ppb (11) 4.0 ppb (4) N/A 8.0 ppb (7) N/A N/A N/A 0.34 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2019, 9 p.m. 33.8 ppb (31) 16.1 ppb (15) N/A 18.0 ppb (17) N/A N/A N/A 0.42 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2019, 8 p.m. 26.8 ppb (25) 14.3 ppb (13) N/A 13.0 ppb (12) N/A N/A N/A 0.39 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2019, 7 p.m. 33.1 ppb (31) 19.6 ppb (18) N/A 14.0 ppb (13) N/A N/A N/A 0.39 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2019, 6 p.m. 32.1 ppb (30) 19.7 ppb (18) N/A 12.0 ppb (11) N/A N/A N/A 0.35 ppb (4) N/A N/A 30.0
 
Jan. 18, 2019, 5 p.m. 32.3 ppb (30) 20.3 ppb (19) N/A 12.0 ppb (11) N/A N/A N/A 0.41 ppb (5) N/A N/A 30.0
 
Jan. 18, 2019, 4 p.m. 38.6 ppb (36) 27.9 ppb (26) N/A 11.0 ppb (10) N/A N/A N/A 0.42 ppb (5) N/A N/A 36.0
 
Jan. 18, 2019, 3 p.m. 39.4 ppb (36) 28.6 ppb (26) N/A 11.0 ppb (10) N/A N/A N/A 0.4 ppb (4) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 18, 2019, 2 p.m. 45.9 ppb (42) 32.0 ppb (30) N/A 14.0 ppb (13) N/A N/A N/A 0.48 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 18, 2019, 1 p.m. 55.3 ppb (51) 38.0 ppb (35) N/A 17.0 ppb (16) N/A N/A N/A 0.55 ppb (6) N/A 10.0 μg/m3 (42) 51.0
 
Jan. 18, 2019, noon 58.9 ppb (55) 38.9 ppb (36) N/A 20.0 ppb (19) N/A N/A N/A 0.52 ppb (6) N/A 12.0 μg/m3 (50) 55.0
 
Jan. 18, 2019, 11 a.m. 55.9 ppb (52) 36.0 ppb (33) N/A 20.0 ppb (19) N/A N/A N/A 0.49 ppb (5) N/A 11.0 μg/m3 (46) 52.0
 
Jan. 18, 2019, 10 a.m. 30.0 ppb (28) 16.9 ppb (16) 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
 
Jan. 18, 2019, 9 a.m. 19.6 ppb (18) 10.0 ppb (9) N/A 10.0 ppb (9) N/A N/A N/A 0.24 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2019, 8 a.m. 12.5 ppb (12) 5.5 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.22 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.21 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2019, 6 a.m. 11.1 ppb (10) 5.0 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.19 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2019, 5 a.m. 12.0 ppb (11) 5.8 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2019, 4 a.m. 19.9 ppb (18) 10.1 ppb (9) N/A 10.0 ppb (9) N/A N/A N/A 0.34 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2019, 3 a.m. 30.4 ppb (28) 15.8 ppb (15) N/A 15.0 ppb (14) N/A N/A N/A 0.41 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 18, 2019, 2 a.m. 29.9 ppb (28) 14.2 ppb (13) N/A 16.0 ppb (15) N/A N/A N/A 0.41 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 18, 2019, 1 a.m. 31.5 ppb (29) 13.9 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
 
Jan. 18, 2019, midnight 41.9 ppb (39) 19.2 ppb (18) N/A 23.0 ppb (21) N/A N/A N/A 0.5 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2019, 11 p.m. 33.0 ppb (31) 12.4 ppb (11) N/A 21.0 ppb (19) N/A N/A N/A 0.42 ppb (5) N/A 7.0 μg/m3 (29) 31.0
 
Jan. 17, 2019, 10 p.m. 19.7 ppb (18) 4.6 ppb (4) N/A 15.0 ppb (14) N/A N/A N/A 0.36 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2019, 9 p.m. 29.5 ppb (27) 12.2 ppb (11) N/A 17.0 ppb (16) N/A N/A N/A 0.39 ppb (4) N/A 5.0 μg/m3 (21) 27.0
 
Jan. 17, 2019, 8 p.m. 37.6 ppb (35) 19.7 ppb (18) N/A 18.0 ppb (17) N/A N/A N/A 0.42 ppb (5) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 17, 2019, 7 p.m. 33.8 ppb (31) 19.8 ppb (18) N/A 14.0 ppb (13) N/A N/A N/A 0.34 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2019, 6 p.m. 29.1 ppb (27) 18.0 ppb (17) N/A 11.0 ppb (10) N/A N/A N/A 0.32 ppb (4) N/A 1.0 μg/m3 (4) 27.0
 
Jan. 17, 2019, 5 p.m. 30.5 ppb (28) 18.7 ppb (17) N/A 12.0 ppb (11) N/A N/A N/A 0.32 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2019, 4 p.m. 26.8 ppb (25) 15.7 ppb (15) N/A 11.0 ppb (10) N/A N/A N/A 0.25 ppb (3) N/A 5.0 μg/m3 (21) 25.0
 
Jan. 17, 2019, 3 p.m. 25.1 ppb (23) 14.1 ppb (13) N/A 11.0 ppb (10) N/A N/A N/A 0.28 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2019, 2 p.m. 19.3 ppb (18) 9.9 ppb (9) N/A 9.0 ppb (8) N/A N/A N/A 0.26 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2019, 1 p.m. 20.6 ppb (19) 8.2 ppb (8) N/A 12.0 ppb (11) N/A N/A N/A 0.28 ppb (3) N/A 4.0 μg/m3 (17) 19.0
 
Jan. 17, 2019, noon 21.3 ppb (20) 7.3 ppb (7) N/A 14.0 ppb (13) N/A N/A N/A 0.27 ppb (3) N/A 4.0 μg/m3 (17) 20.0
 
Jan. 17, 2019, 11 a.m. 11.9 ppb (11) 5.0 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.21 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2019, 10 a.m. 6.3 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.17 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2019, 9 a.m. 10.1 ppb (9) 2.7 ppb (3) N/A 7.0 ppb (6) N/A N/A N/A 0.17 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2019, 8 a.m. 8.3 ppb (8) 1.7 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A 0.18 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.18 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2019, 6 a.m. 14.3 ppb (13) 6.4 ppb (6) N/A 8.0 ppb (7) N/A N/A N/A 0.18 ppb (2) N/A 2.0 μg/m3 (8) 13.0
 
Jan. 17, 2019, 5 a.m. 4.4 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2019, 4 a.m. 5.7 ppb (5) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.18 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2019, 3 a.m. 8.1 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.22 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2019, 2 a.m. 8.3 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.25 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2019, 1 a.m. 21.5 ppb (20) 2.4 ppb (2) N/A 19.0 ppb (18) N/A N/A N/A 0.36 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2019, midnight 14.3 ppb (13) 1.0 ppb (1) N/A 13.0 ppb (12) N/A N/A N/A 0.32 ppb (4) N/A 2.0 μg/m3 (8) 13.0
 
Jan. 16, 2019, 11 p.m. 13.9 ppb (13) 2.5 ppb (2) N/A 11.0 ppb (10) N/A N/A N/A 0.31 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2019, 10 p.m. 16.3 ppb (15) 5.3 ppb (5) N/A 11.0 ppb (10) N/A N/A N/A 0.29 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2019, 9 p.m. 31.0 ppb (29) 14.8 ppb (14) N/A 16.0 ppb (15) N/A N/A N/A 0.35 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 16, 2019, 8 p.m. 42.1 ppb (39) 22.5 ppb (21) N/A 20.0 ppb (19) N/A N/A N/A 0.37 ppb (4) N/A 5.0 μg/m3 (21) 39.0
 
Jan. 16, 2019, 7 p.m. 37.9 ppb (35) 21.2 ppb (20) N/A 17.0 ppb (16) N/A N/A N/A 0.37 ppb (4) N/A 7.0 μg/m3 (29) 35.0
 
Jan. 16, 2019, 6 p.m. 31.4 ppb (29) 17.4 ppb (16) N/A 14.0 ppb (13) N/A N/A N/A 0.33 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2019, 5 p.m. 35.1 ppb (32) 22.4 ppb (21) N/A 13.0 ppb (12) N/A N/A N/A 0.32 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 16, 2019, 4 p.m. 41.6 ppb (39) 28.8 ppb (27) N/A 13.0 ppb (12) N/A N/A N/A 0.38 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2019, 3 p.m. 49.2 ppb (46) 35.5 ppb (33) N/A 14.0 ppb (13) N/A N/A N/A 0.41 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 16, 2019, 2 p.m. 72.8 ppb (70) 54.9 ppb (51) N/A 18.0 ppb (17) N/A N/A N/A 0.57 ppb (6) N/A 15.0 μg/m3 (56) 70.0
 
Jan. 16, 2019, 1 p.m. 112.6 ppb (102) 90.0 ppb (88) N/A 23.0 ppb (21) N/A N/A N/A 0.74 ppb (8) N/A 14.0 μg/m3 (54) 102.0
 
Jan. 16, 2019, noon 93.5 ppb (92) 74.0 ppb (71) N/A 19.0 ppb (18) N/A N/A N/A 0.72 ppb (8) N/A 13.0 μg/m3 (52) 92.0
 
Jan. 16, 2019, 11 a.m. 114.5 ppb (103) 94.0 ppb (93) N/A 20.0 ppb (19) N/A N/A N/A 0.79 ppb (9) N/A 9.0 μg/m3 (38) 103.0
 
Jan. 16, 2019, 10 a.m. 92.5 ppb (91) 77.0 ppb (74) N/A 15.0 ppb (14) N/A N/A N/A 0.65 ppb (7) N/A 11.0 μg/m3 (46) 91.0
 
Jan. 16, 2019, 9 a.m. 109.9 ppb (102) 94.6 ppb (93) N/A 15.0 ppb (14) N/A N/A N/A 0.76 ppb (8) N/A 9.0 μg/m3 (38) 102.0
 
Jan. 16, 2019, 8 a.m. 77.3 ppb (75) 63.0 ppb (60) N/A 14.0 ppb (13) N/A N/A N/A 0.69 ppb (8) N/A 14.0 μg/m3 (54) 75.0
 
Jan. 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.76 ppb (8) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2019, 6 a.m. 86.9 ppb (85) 71.5 ppb (69) N/A 15.0 ppb (14) N/A N/A N/A 0.84 ppb (9) N/A 10.0 μg/m3 (42) 85.0
 
Jan. 16, 2019, 5 a.m. 59.8 ppb (56) 42.3 ppb (39) N/A 17.0 ppb (16) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 56.0
 
Jan. 16, 2019, 4 a.m. 48.3 ppb (45) 29.9 ppb (28) N/A 18.0 ppb (17) N/A N/A N/A 0.61 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2019, 3 a.m. 48.7 ppb (45) 30.3 ppb (28) N/A 18.0 ppb (17) N/A N/A N/A 0.62 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2019, 2 a.m. 76.2 ppb (74) 56.5 ppb (53) N/A 20.0 ppb (19) N/A N/A N/A 0.8 ppb (9) N/A 9.0 μg/m3 (38) 74.0
 
Jan. 16, 2019, 1 a.m. 74.2 ppb (71) 52.3 ppb (48) N/A 22.0 ppb (20) N/A N/A N/A 0.76 ppb (8) N/A 7.0 μg/m3 (29) 71.0
 
Jan. 16, 2019, midnight 40.6 ppb (38) 21.6 ppb (20) N/A 19.0 ppb (18) N/A N/A N/A 0.57 ppb (6) N/A 7.0 μg/m3 (29) 38.0
 
Jan. 15, 2019, 11 p.m. 12.9 ppb (12) 2.2 ppb (2) N/A 11.0 ppb (10) N/A N/A N/A 0.29 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 15, 2019, 10 p.m. 8.9 ppb (8) 1.4 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.28 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.38 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.35 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2019, 5 p.m. 34.4 ppb (32) 22.6 ppb (21) N/A 12.0 ppb (11) N/A N/A N/A 0.38 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2019, 4 p.m. 15.2 ppb (14) 8.1 ppb (8) N/A 7.0 ppb (6) N/A N/A N/A 0.27 ppb (3) N/A 15.0 μg/m3 (56) 56.0
 
Jan. 15, 2019, 3 p.m. 18.7 ppb (17) 8.3 ppb (8) N/A 10.0 ppb (9) N/A N/A N/A 0.32 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2019, 2 p.m. 60.0 ppb (56) 40.2 ppb (37) N/A 20.0 ppb (19) N/A N/A N/A 0.54 ppb (6) N/A 12.0 μg/m3 (50) 56.0
 
Jan. 15, 2019, 1 p.m. 71.3 ppb (68) 47.9 ppb (44) N/A 23.0 ppb (21) N/A N/A N/A 0.63 ppb (7) N/A 13.0 μg/m3 (52) 68.0
 
Jan. 15, 2019, noon 59.3 ppb (56) 39.1 ppb (36) N/A 20.0 ppb (19) N/A N/A N/A 0.58 ppb (6) N/A 8.0 μg/m3 (33) 56.0
 
Jan. 15, 2019, 11 a.m. 11.3 ppb (10) 2.8 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A 0.24 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2019, 10 a.m. 9.0 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.24 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2019, 9 a.m. 16.2 ppb (15) 4.2 ppb (4) N/A 12.0 ppb (11) N/A N/A N/A 0.26 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2019, 8 a.m. 28.6 ppb (26) 11.7 ppb (11) N/A 17.0 ppb (16) N/A N/A N/A 0.33 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.31 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2019, 6 a.m. 21.9 ppb (20) 7.0 ppb (6) N/A 15.0 ppb (14) N/A N/A N/A 0.27 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2019, 5 a.m. 8.0 ppb (7) 0.4 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2019, 4 a.m. 9.5 ppb (9) 0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A 0.26 ppb (3) N/A 15.0 μg/m3 (56) 56.0
 
Jan. 15, 2019, 3 a.m. 13.2 ppb (12) 2.3 ppb (2) N/A 11.0 ppb (10) N/A N/A N/A 0.3 ppb (3) N/A 15.0 μg/m3 (56) 56.0
 
Jan. 15, 2019, 2 a.m. 10.1 ppb (9) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.37 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2019, 1 a.m. 10.4 ppb (10) 0.4 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A 0.29 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2019, midnight 8.9 ppb (8) 0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A 0.23 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 14, 2019, 11 p.m. 6.2 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.22 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 14, 2019, 10 p.m. 5.6 ppb (5) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.19 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2019, 9 p.m. 7.7 ppb (7) 2.7 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.22 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 14, 2019, 8 p.m. 3.8 ppb (4) 1.3 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.19 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 14, 2019, 7 p.m. 16.7 ppb (15) 9.5 ppb (9) N/A 7.0 ppb (6) N/A N/A N/A 0.26 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 14, 2019, 6 p.m. 11.0 ppb (10) 6.2 ppb (6) N/A 5.0 ppb (5) N/A N/A N/A 0.23 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 14, 2019, 5 p.m. 9.4 ppb (9) 4.8 ppb (4) N/A 5.0 ppb (5) N/A N/A N/A 0.21 ppb (2) N/A 1.0 μg/m3 (4) 9.0
 
Jan. 14, 2019, 4 p.m. 12.8 ppb (12) 6.5 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A 0.24 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2019, 3 p.m. 13.6 ppb (13) 7.2 ppb (7) N/A 6.0 ppb (6) N/A N/A N/A 0.26 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 14, 2019, 2 p.m. 8.5 ppb (8) 3.8 ppb (4) N/A 5.0 ppb (5) N/A N/A N/A 0.25 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 14, 2019, 1 p.m. 8.8 ppb (8) 3.1 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.25 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 14, 2019, noon 7.2 ppb (7) 2.3 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.24 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 14, 2019, 11 a.m. 7.7 ppb (7) 2.8 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.24 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2019, 10 a.m. 3.6 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.21 ppb (2) N/A 7.0 μg/m3 (29) 29.0