AQSQID: 371830021

Site Name: Triple Oak - Near Road

Location: Morrisville (Dan K Moore Fwy), NC

Reporting: True, Located: True

Current AQI: 29.0

Morrisville (Dan K Moore Fwy) 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, 2020, noon 6.5 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.22 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 21, 2020, 11 a.m. 6.6 ppb (6) 1.6 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. 21, 2020, 10 a.m. 5.3 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.19 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 21, 2020, 9 a.m. 4.0 ppb (4) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.19 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 21, 2020, 8 a.m. 2.5 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 21, 2020, 7 a.m. 3.2 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 21, 2020, 6 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. 21, 2020, 5 a.m. 4.8 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.18 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 21, 2020, 4 a.m. 6.2 ppb (6) 0.6 ppb (1) 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
 
Jan. 21, 2020, 3 a.m. 7.1 ppb (7) 1.6 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.21 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 21, 2020, 2 a.m. 5.1 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 21, 2020, 1 a.m. 6.1 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.23 ppb (3) N/A 2.0 μg/m3 (8) 8.0
 
Jan. 21, 2020, midnight 5.3 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.19 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 20, 2020, 11 p.m. 4.9 ppb (5) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.19 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, 10 p.m. 3.7 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.18 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 9 p.m. 1.8 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.15 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 20, 2020, 8 p.m. 4.8 ppb (4) 1.9 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.17 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, 7 p.m. 5.3 ppb (5) 2.4 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
 
Jan. 20, 2020, 6 p.m. 6.4 ppb (6) 3.7 ppb (3) N/A 3.0 ppb (3) N/A N/A N/A 0.17 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 20, 2020, 5 p.m. 4.1 ppb (4) 1.9 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A 0.17 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 4 p.m. 3.9 ppb (4) 2.0 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A 0.17 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, 3 p.m. 3.3 ppb (3) 1.7 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A 0.17 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 2 p.m. 6.2 ppb (6) 3.1 ppb (3) N/A 3.0 ppb (3) N/A N/A N/A 0.18 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 1 p.m. 11.4 ppb (11) 5.2 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.21 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, noon 8.4 ppb (8) 3.4 ppb (3) 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. 20, 2020, 11 a.m. 5.4 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.18 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 20, 2020, 10 a.m. 2.4 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 9 a.m. 1.8 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.15 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Jan. 20, 2020, 8 a.m. 1.7 ppb (2) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.13 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, 7 a.m. 1.7 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.16 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, 5 a.m. 2.1 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.15 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 20, 2020, 4 a.m. 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.14 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 20, 2020, 3 a.m. 2.0 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Jan. 20, 2020, 2 a.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.14 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 20, 2020, 1 a.m. 1.3 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.14 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, midnight 1.8 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) N/A 1.0 μg/m3 (4) 4.0
 
Jan. 19, 2020, 11 p.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 19, 2020, 10 p.m. 10.0 ppb (9) 2.7 ppb (3) N/A 7.0 ppb (6) N/A N/A N/A 0.26 ppb (3) N/A 1.0 μg/m3 (4) 9.0
 
Jan. 19, 2020, 9 p.m. 7.1 ppb (7) 2.5 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.21 ppb (2) N/A 1.0 μg/m3 (4) 7.0
 
Jan. 19, 2020, 8 p.m. 7.6 ppb (7) 3.4 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.23 ppb (3) N/A 1.0 μg/m3 (4) 7.0
 
Jan. 19, 2020, 7 p.m. 5.5 ppb (5) 2.5 ppb (2) 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
 
Jan. 19, 2020, 6 p.m. 8.9 ppb (8) 4.2 ppb (4) N/A 5.0 ppb (5) N/A N/A N/A 0.27 ppb (3) N/A -2.0 μg/m3 (0) 8.0
 
Jan. 19, 2020, 5 p.m. 10.4 ppb (10) 4.7 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.26 ppb (3) N/A 2.0 μg/m3 (8) 10.0
 
Jan. 19, 2020, 4 p.m. 11.4 ppb (11) 6.1 ppb (6) N/A 5.0 ppb (5) N/A N/A N/A 0.29 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2020, 3 p.m. 10.7 ppb (10) 6.4 ppb (6) N/A 4.0 ppb (4) N/A N/A N/A 0.31 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2020, 2 p.m. 11.2 ppb (10) 6.7 ppb (6) N/A 5.0 ppb (5) N/A N/A N/A 0.31 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2020, 1 p.m. 10.6 ppb (10) 5.7 ppb (5) N/A 5.0 ppb (5) N/A N/A N/A 0.28 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2020, noon 5.9 ppb (5) 3.1 ppb (3) N/A 3.0 ppb (3) N/A N/A N/A 0.23 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2020, 11 a.m. 6.6 ppb (6) 3.2 ppb (3) N/A 3.0 ppb (3) N/A N/A N/A 0.26 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2020, 10 a.m. 6.1 ppb (6) 2.6 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.22 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 19, 2020, 9 a.m. 4.5 ppb (4) 1.9 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.23 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2020, 8 a.m. 4.4 ppb (4) 1.7 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.21 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 19, 2020, 7 a.m. 6.2 ppb (6) 2.7 ppb (3) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.24 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2020, 5 a.m. 6.8 ppb (6) 3.1 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.25 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2020, 4 a.m. 11.8 ppb (11) 5.5 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.27 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2020, 3 a.m. 12.0 ppb (11) 4.9 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 19, 2020, 2 a.m. 13.1 ppb (12) 5.8 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.37 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2020, 1 a.m. 12.6 ppb (12) 4.5 ppb (4) N/A 8.0 ppb (7) N/A N/A N/A 0.33 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2020, midnight 17.9 ppb (17) 7.7 ppb (7) N/A 10.0 ppb (9) N/A N/A N/A 0.42 ppb (5) N/A 2.0 μg/m3 (8) 17.0
 
Jan. 18, 2020, 11 p.m. 23.7 ppb (22) 10.8 ppb (10) N/A 13.0 ppb (12) N/A N/A N/A 0.42 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2020, 10 p.m. 24.4 ppb (23) 11.5 ppb (11) N/A 13.0 ppb (12) N/A N/A N/A 0.43 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2020, 9 p.m. 21.4 ppb (20) 11.6 ppb (11) N/A 10.0 ppb (9) N/A N/A N/A 0.39 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2020, 8 p.m. 20.1 ppb (19) 10.7 ppb (10) N/A 9.0 ppb (8) N/A N/A N/A 0.38 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2020, 7 p.m. 18.0 ppb (17) 9.5 ppb (9) N/A 9.0 ppb (8) N/A N/A N/A 0.34 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2020, 6 p.m. 18.7 ppb (17) 8.8 ppb (8) N/A 10.0 ppb (9) N/A N/A N/A 0.36 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2020, 5 p.m. 23.1 ppb (21) 12.4 ppb (11) N/A 11.0 ppb (10) N/A N/A N/A 0.35 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2020, 4 p.m. 21.7 ppb (20) 9.9 ppb (9) N/A 12.0 ppb (11) N/A N/A N/A 0.37 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 18, 2020, 3 p.m. 22.1 ppb (20) 11.0 ppb (10) N/A 11.0 ppb (10) N/A N/A N/A 0.38 ppb (4) N/A 4.0 μg/m3 (17) 20.0
 
Jan. 18, 2020, 2 p.m. 23.6 ppb (22) 13.1 ppb (12) N/A 10.0 ppb (9) N/A N/A N/A 0.34 ppb (4) N/A 5.0 μg/m3 (21) 22.0
 
Jan. 18, 2020, 1 p.m. 14.1 ppb (13) 5.4 ppb (5) 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
 
Jan. 18, 2020, noon 18.9 ppb (18) 7.3 ppb (7) N/A 12.0 ppb (11) N/A N/A N/A 0.3 ppb (3) N/A 4.0 μg/m3 (17) 18.0
 
Jan. 18, 2020, 11 a.m. 22.9 ppb (21) 11.4 ppb (11) N/A 12.0 ppb (11) N/A N/A N/A 0.28 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2020, 10 a.m. 8.0 ppb (7) 2.4 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.22 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2020, 9 a.m. 7.2 ppb (7) 1.8 ppb (2) 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
 
Jan. 18, 2020, 8 a.m. 5.9 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.15 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Jan. 18, 2020, 7 a.m. 3.6 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 18, 2020, 5 a.m. 5.8 ppb (5) 1.2 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.19 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2020, 4 a.m. 7.5 ppb (7) 1.8 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2020, 3 a.m. 6.8 ppb (6) 1.9 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.21 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2020, 2 a.m. 9.2 ppb (9) 2.4 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A 0.22 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2020, 1 a.m. 17.9 ppb (17) 3.1 ppb (3) N/A 15.0 ppb (14) N/A N/A N/A 0.28 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2020, midnight 12.4 ppb (11) 1.9 ppb (2) N/A 10.0 ppb (9) N/A N/A N/A 0.28 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2020, 11 p.m. 8.4 ppb (8) 1.6 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.22 ppb (2) N/A 1.0 μg/m3 (4) 8.0
 
Jan. 17, 2020, 10 p.m. 1.8 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2020, 9 p.m. 3.0 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.15 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 17, 2020, 8 p.m. 4.2 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.16 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2020, 7 p.m. 4.7 ppb (4) 2.3 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A 0.15 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 17, 2020, 6 p.m. 4.3 ppb (4) 2.4 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A 0.16 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Jan. 17, 2020, 5 p.m. 3.9 ppb (4) 1.5 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2020, 4 p.m. 5.7 ppb (5) 2.9 ppb (3) N/A 3.0 ppb (3) N/A N/A N/A 0.14 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Jan. 17, 2020, 3 p.m. 1.8 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 0.14 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2020, 2 p.m. 2.7 ppb (3) 0.8 ppb (1) 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
 
Jan. 17, 2020, 1 p.m. 7.8 ppb (7) 2.3 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.18 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2020, noon 6.0 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2020, 11 a.m. 7.5 ppb (7) 2.3 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.17 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 17, 2020, 10 a.m. 4.8 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.13 ppb (1) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2020, 9 a.m. 2.4 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.12 ppb (1) N/A 1.0 μg/m3 (4) 4.0
 
Jan. 17, 2020, 8 a.m. 1.9 ppb (2) 0.2 ppb (0) 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. 17, 2020, 7 a.m. 1.2 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Jan. 17, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.13 ppb (1) N/A 1.0 μg/m3 (4) 4.0
 
Jan. 17, 2020, 5 a.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.13 ppb (1) N/A 0.0 μg/m3 (0) 2.0
 
Jan. 17, 2020, 4 a.m. 1.6 ppb (1) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.13 ppb (1) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2020, 3 a.m. 7.5 ppb (7) 1.8 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.17 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 17, 2020, 2 a.m. 5.8 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.16 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Jan. 17, 2020, 1 a.m. 13.5 ppb (12) 3.0 ppb (3) N/A 11.0 ppb (10) N/A N/A N/A 0.23 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2020, midnight 24.2 ppb (22) 7.5 ppb (7) N/A 17.0 ppb (16) N/A N/A N/A 0.39 ppb (4) N/A 4.0 μg/m3 (17) 22.0
 
Jan. 16, 2020, 11 p.m. 28.5 ppb (26) 11.8 ppb (11) N/A 17.0 ppb (16) N/A N/A N/A 0.39 ppb (4) N/A 4.0 μg/m3 (17) 26.0
 
Jan. 16, 2020, 10 p.m. 20.4 ppb (19) 6.9 ppb (6) N/A 13.0 ppb (12) N/A N/A N/A 0.26 ppb (3) N/A 2.0 μg/m3 (8) 19.0
 
Jan. 16, 2020, 9 p.m. 30.7 ppb (28) 13.2 ppb (12) N/A 18.0 ppb (17) N/A N/A N/A 0.39 ppb (4) N/A 4.0 μg/m3 (17) 28.0
 
Jan. 16, 2020, 8 p.m. 10.7 ppb (10) 4.4 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 1.0 μg/m3 (4) 10.0
 
Jan. 16, 2020, 7 p.m. 8.9 ppb (8) 4.3 ppb (4) N/A 5.0 ppb (5) N/A N/A N/A 0.18 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2020, 6 p.m. 10.3 ppb (10) 4.6 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.18 ppb (2) N/A 2.0 μg/m3 (8) 10.0
 
Jan. 16, 2020, 5 p.m. 14.1 ppb (13) 7.0 ppb (6) N/A 7.0 ppb (6) N/A N/A N/A 0.22 ppb (2) N/A 2.0 μg/m3 (8) 13.0
 
Jan. 16, 2020, 4 p.m. 13.8 ppb (13) 7.3 ppb (7) N/A 6.0 ppb (6) N/A N/A N/A 0.21 ppb (2) N/A 3.0 μg/m3 (12) 13.0
 
Jan. 16, 2020, 3 p.m. 5.4 ppb (5) 2.6 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.17 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 16, 2020, 2 p.m. 4.7 ppb (4) 1.8 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.2 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 16, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2020, noon 35.0 ppb (32) 25.1 ppb (23) N/A 10.0 ppb (9) N/A N/A N/A 0.49 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 16, 2020, 11 a.m. 38.5 ppb (36) 28.4 ppb (26) N/A 10.0 ppb (9) N/A N/A N/A 0.51 ppb (6) N/A 7.0 μg/m3 (29) 36.0
 
Jan. 16, 2020, 10 a.m. 22.2 ppb (21) 14.1 ppb (13) N/A 8.0 ppb (7) N/A N/A N/A 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2020, 9 a.m. 12.3 ppb (11) 7.6 ppb (7) 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. 16, 2020, 8 a.m. 7.3 ppb (7) 3.7 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2020, 7 a.m. 7.0 ppb (6) 3.3 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.19 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 16, 2020, 5 a.m. 15.3 ppb (14) 7.8 ppb (7) N/A 8.0 ppb (7) N/A N/A N/A 0.28 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2020, 4 a.m. 17.5 ppb (16) 9.3 ppb (9) N/A 8.0 ppb (7) N/A N/A N/A 0.31 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 16, 2020, 3 a.m. 14.8 ppb (14) 8.0 ppb (7) N/A 7.0 ppb (6) N/A N/A N/A 0.28 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 16, 2020, 2 a.m. 16.2 ppb (15) 8.6 ppb (8) N/A 8.0 ppb (7) N/A N/A N/A 0.32 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 16, 2020, 1 a.m. 24.8 ppb (23) 11.5 ppb (11) N/A 13.0 ppb (12) N/A N/A N/A 0.45 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2020, midnight 30.2 ppb (28) 13.8 ppb (13) N/A 16.0 ppb (15) N/A N/A N/A 0.52 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2020, 11 p.m. 31.7 ppb (29) 14.3 ppb (13) N/A 17.0 ppb (16) N/A N/A N/A 0.54 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2020, 10 p.m. 15.4 ppb (14) 5.0 ppb (5) N/A 10.0 ppb (9) N/A N/A N/A 0.37 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2020, 9 p.m. 23.0 ppb (21) 9.4 ppb (9) N/A 14.0 ppb (13) N/A N/A N/A 0.44 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2020, 8 p.m. 29.5 ppb (27) 15.4 ppb (14) N/A 14.0 ppb (13) N/A N/A N/A 0.42 ppb (5) N/A 4.0 μg/m3 (17) 27.0
 
Jan. 15, 2020, 7 p.m. 21.0 ppb (19) 11.7 ppb (11) N/A 9.0 ppb (8) N/A N/A N/A 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2020, 6 p.m. 27.4 ppb (25) 17.2 ppb (16) N/A 10.0 ppb (9) N/A N/A N/A 0.36 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2020, 5 p.m. 26.9 ppb (25) 16.0 ppb (15) N/A 11.0 ppb (10) N/A N/A N/A 0.35 ppb (4) N/A 1.0 μg/m3 (4) 25.0
 
Jan. 15, 2020, 4 p.m. 11.7 ppb (11) 6.0 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A 0.27 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2020, 3 p.m. 17.9 ppb (17) 9.3 ppb (9) N/A 9.0 ppb (8) N/A N/A N/A 0.29 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2020, 2 p.m. 10.9 ppb (10) 4.5 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.24 ppb (3) N/A N/A 10.0
 
Jan. 15, 2020, 1 p.m. 15.0 ppb (14) 5.7 ppb (5) N/A 9.0 ppb (8) N/A N/A N/A 0.27 ppb (3) N/A 23.0 μg/m3 (73) 73.0
 
Jan. 15, 2020, noon 11.6 ppb (11) 4.0 ppb (4) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A N/A 11.0
 
Jan. 15, 2020, 11 a.m. 14.7 ppb (14) 5.4 ppb (5) N/A 9.0 ppb (8) N/A N/A N/A 0.27 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2020, 10 a.m. 35.5 ppb (33) 25.2 ppb (23) N/A 10.0 ppb (9) N/A N/A N/A 0.33 ppb (4) N/A 6.0 μg/m3 (25) 33.0
 
Jan. 15, 2020, 9 a.m. 38.6 ppb (36) 28.4 ppb (26) N/A 10.0 ppb (9) N/A N/A N/A 0.32 ppb (4) N/A 3.0 μg/m3 (12) 36.0
 
Jan. 15, 2020, 8 a.m. 26.3 ppb (24) 19.6 ppb (18) N/A 7.0 ppb (6) N/A N/A N/A 0.35 ppb (4) N/A 4.0 μg/m3 (17) 24.0
 
Jan. 15, 2020, 7 a.m. 9.8 ppb (9) 5.5 ppb (5) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 15, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.49 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2020, 5 a.m. 28.2 ppb (26) 21.6 ppb (20) N/A 7.0 ppb (6) N/A N/A N/A 0.49 ppb (5) N/A 4.0 μg/m3 (17) 26.0
 
Jan. 15, 2020, 4 a.m. 22.6 ppb (21) 15.5 ppb (14) N/A 7.0 ppb (6) N/A N/A N/A 0.51 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2020, 3 a.m. 24.9 ppb (23) 16.0 ppb (15) N/A 9.0 ppb (8) N/A N/A N/A 0.42 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2020, 2 a.m. 35.3 ppb (33) 23.4 ppb (22) N/A 12.0 ppb (11) N/A N/A N/A 0.5 ppb (6) N/A 7.0 μg/m3 (29) 33.0
 
Jan. 15, 2020, 1 a.m. 26.7 ppb (25) 15.4 ppb (14) N/A 11.0 ppb (10) N/A N/A N/A 0.47 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2020, midnight 32.4 ppb (30) 20.1 ppb (19) N/A 12.0 ppb (11) N/A N/A N/A 0.52 ppb (6) N/A 3.0 μg/m3 (12) 30.0
 
Jan. 14, 2020, 11 p.m. 28.8 ppb (27) 17.6 ppb (16) N/A 11.0 ppb (10) N/A N/A N/A 0.47 ppb (5) N/A 5.0 μg/m3 (21) 27.0
 
Jan. 14, 2020, 10 p.m. 26.7 ppb (25) 15.5 ppb (14) N/A 11.0 ppb (10) N/A N/A N/A 0.53 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2020, 9 p.m. 26.0 ppb (24) 15.4 ppb (14) N/A 11.0 ppb (10) N/A N/A N/A 0.42 ppb (5) N/A 4.0 μg/m3 (17) 24.0
 
Jan. 14, 2020, 8 p.m. 27.9 ppb (26) 16.6 ppb (15) N/A 11.0 ppb (10) N/A N/A N/A 0.43 ppb (5) N/A 2.0 μg/m3 (8) 26.0
 
Jan. 14, 2020, 7 p.m. 30.8 ppb (29) 18.5 ppb (17) N/A 12.0 ppb (11) N/A N/A N/A 0.36 ppb (4) N/A 5.0 μg/m3 (21) 29.0
 
Jan. 14, 2020, 6 p.m. 26.9 ppb (25) 16.5 ppb (15) N/A 10.0 ppb (9) N/A N/A N/A 0.32 ppb (4) N/A 14.0 μg/m3 (54) 54.0
 
Jan. 14, 2020, 5 p.m. 19.9 ppb (18) 12.1 ppb (11) N/A 8.0 ppb (7) N/A N/A N/A 0.27 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2020, 4 p.m. 27.1 ppb (25) 16.9 ppb (16) N/A 10.0 ppb (9) N/A N/A N/A 0.35 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2020, 3 p.m. 34.3 ppb (32) 21.8 ppb (20) N/A 13.0 ppb (12) N/A N/A N/A 0.37 ppb (4) N/A 5.0 μg/m3 (21) 32.0
 
Jan. 14, 2020, 2 p.m. 36.9 ppb (34) 23.0 ppb (21) N/A 14.0 ppb (13) N/A N/A N/A 0.43 ppb (5) N/A 8.0 μg/m3 (33) 34.0
 
Jan. 14, 2020, 1 p.m. 36.1 ppb (33) 19.8 ppb (18) N/A 16.0 ppb (15) N/A N/A N/A 0.49 ppb (5) N/A 5.0 μg/m3 (21) 33.0