AQSQID: 380530002

Site Name: Trnp-Nu

Location: McKenzie Co, ND

Reporting: True, Located: True

Current AQI: 24.0

McKenzie Co ND, US: 47.6011, -103.2642

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Nov. 15, 2019, 7 p.m. 2.4 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 31.0 ppb (24) N/A 3.0 μg/m3 (3) 5.3 μg/m3 (22) 24.0
 
Nov. 15, 2019, 6 p.m. 2.3 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 3.0 μg/m3 (3) 2.1 μg/m3 (9) 22.0
 
Nov. 15, 2019, 5 p.m. 2.6 ppb (2) 1.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 7.0 μg/m3 (6) 2.6 μg/m3 (11) 20.0
 
Nov. 15, 2019, 4 p.m. 4.5 ppb (4) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 19.0 ppb (15) N/A 7.0 μg/m3 (6) 1.1 μg/m3 (5) 15.0
 
Nov. 15, 2019, 3 p.m. 9.4 ppb (9) 4.9 ppb (5) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 8.0 ppb (6) N/A 7.0 μg/m3 (6) -1.8 μg/m3 (0) 9.0
 
Nov. 15, 2019, 2 p.m. 6.9 ppb (6) 2.1 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 6.0 ppb (5) N/A 5.0 μg/m3 (5) 1.5 μg/m3 (6) 6.0
 
Nov. 15, 2019, 1 p.m. 4.1 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 5.0 ppb (4) N/A 4.0 μg/m3 (4) -1.5 μg/m3 (0) 4.0
 
Nov. 15, 2019, noon 3.7 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 6.0 ppb (5) N/A 5.0 μg/m3 (5) -0.8 μg/m3 (0) 5.0
 
Nov. 15, 2019, 11 a.m. 4.0 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 7.0 ppb (5) N/A 4.0 μg/m3 (4) 1.6 μg/m3 (7) 7.0
 
Nov. 15, 2019, 10 a.m. 3.4 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 7.0 ppb (5) N/A 4.0 μg/m3 (4) 2.3 μg/m3 (10) 10.0
 
Nov. 15, 2019, 9 a.m. 3.3 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 7.0 ppb (5) N/A 4.0 μg/m3 (4) 1.7 μg/m3 (7) 7.0
 
Nov. 15, 2019, 8 a.m. 2.8 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 6.0 ppb (5) N/A 3.0 μg/m3 (3) -1.4 μg/m3 (0) 5.0
 
Nov. 15, 2019, 7 a.m. 3.0 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 6.0 ppb (5) N/A 4.0 μg/m3 (4) -3.4 μg/m3 (0) 5.0
 
Nov. 15, 2019, 6 a.m. 5.1 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 5.0 ppb (4) N/A 3.0 μg/m3 (3) -0.3 μg/m3 (0) 5.0
 
Nov. 15, 2019, 5 a.m. 3.8 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 4.0 ppb (3) N/A 2.0 μg/m3 (2) -1.4 μg/m3 (0) 4.0
 
Nov. 15, 2019, 4 a.m. 1.3 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 5.0 ppb (4) N/A 3.0 μg/m3 (3) -4.2 μg/m3 (0) 4.0
 
Nov. 15, 2019, 3 a.m. 2.3 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 7.0 ppb (5) N/A 2.0 μg/m3 (2) -3.6 μg/m3 (0) 5.0
 
Nov. 15, 2019, 2 a.m. 1.2 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 10.0 ppb (8) N/A 3.0 μg/m3 (3) -4.4 μg/m3 (0) 8.0
 
Nov. 15, 2019, 1 a.m. 1.1 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 13.0 ppb (10) N/A 2.0 μg/m3 (2) -2.7 μg/m3 (0) 10.0
 
Nov. 15, 2019, midnight 1.1 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 17.0 ppb (13) N/A 3.0 μg/m3 (3) 0.0 μg/m3 (0) 13.0
 
Nov. 14, 2019, 11 p.m. 1.0 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 3.0 μg/m3 (3) 1.2 μg/m3 (5) 18.0
 
Nov. 14, 2019, 10 p.m. 1.0 ppb (1) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 3.0 μg/m3 (3) 1.6 μg/m3 (7) 22.0
 
Nov. 14, 2019, 9 p.m. 1.1 ppb (1) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 32.0 ppb (25) N/A 3.0 μg/m3 (3) 2.3 μg/m3 (10) 25.0
 
Nov. 14, 2019, 8 p.m. 1.1 ppb (1) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 3.0 μg/m3 (3) 2.6 μg/m3 (11) 24.0
 
Nov. 14, 2019, 7 p.m. 1.2 ppb (1) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 3.0 μg/m3 (3) 2.9 μg/m3 (12) 23.0
 
Nov. 14, 2019, 6 p.m. 1.2 ppb (1) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 3.0 μg/m3 (3) 3.6 μg/m3 (15) 22.0
 
Nov. 14, 2019, 5 p.m. 1.3 ppb (1) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 2.0 μg/m3 (2) 4.1 μg/m3 (17) 22.0
 
Nov. 14, 2019, 4 p.m. 1.5 ppb (1) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 7.0 μg/m3 (6) 0.7 μg/m3 (3) 20.0
 
Nov. 14, 2019, 3 p.m. 1.3 ppb (1) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 5.0 μg/m3 (5) -2.0 μg/m3 (0) 19.0
 
Nov. 14, 2019, 2 p.m. 1.2 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 4.0 μg/m3 (4) -0.6 μg/m3 (0) 19.0
 
Nov. 14, 2019, 1 p.m. 1.2 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 3.0 μg/m3 (3) -2.4 μg/m3 (0) 19.0
 
Nov. 14, 2019, noon 1.3 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 4.0 μg/m3 (4) -0.1 μg/m3 (0) 20.0
 
Nov. 14, 2019, 11 a.m. 1.4 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 4.0 μg/m3 (4) 3.1 μg/m3 (13) 21.0
 
Nov. 14, 2019, 10 a.m. 1.7 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 5.0 μg/m3 (5) 0.2 μg/m3 (1) 19.0
 
Nov. 5, 2019, 1 p.m. 2.4 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 20.0 ppb (15) N/A 5.0 μg/m3 (5) 0.5 μg/m3 (2) 15.0
 
Nov. 5, 2019, noon 2.1 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 20.0 ppb (15) N/A 5.0 μg/m3 (5) -0.2 μg/m3 (0) 15.0
 
Nov. 5, 2019, 11 a.m. 2.1 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 4.0 μg/m3 (4) 2.1 μg/m3 (9) 16.0
 
Nov. 5, 2019, 10 a.m. 2.0 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 19.0 ppb (15) N/A 6.0 μg/m3 (5) -0.4 μg/m3 (0) 15.0
 
Nov. 5, 2019, 9 a.m. 2.7 ppb (3) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 17.0 ppb (13) N/A 6.0 μg/m3 (5) 0.8 μg/m3 (3) 13.0
 
Nov. 5, 2019, 8 a.m. 3.6 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 14.0 ppb (11) N/A 7.0 μg/m3 (6) 0.2 μg/m3 (1) 11.0
 
Nov. 5, 2019, 7 a.m. 4.6 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 12.0 ppb (9) N/A 5.0 μg/m3 (5) -3.6 μg/m3 (0) 9.0
 
Nov. 5, 2019, 6 a.m. 4.5 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 12.0 ppb (9) N/A 4.0 μg/m3 (4) -2.1 μg/m3 (0) 9.0
 
Nov. 5, 2019, 5 a.m. 0.8 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 12.0 ppb (9) N/A 4.0 μg/m3 (4) -2.0 μg/m3 (0) 9.0
 
Nov. 5, 2019, 4 a.m. 0.9 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 14.0 ppb (11) N/A 3.0 μg/m3 (3) -1.9 μg/m3 (0) 11.0
 
Nov. 5, 2019, 3 a.m. 0.8 ppb (1) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 14.0 ppb (11) N/A 3.0 μg/m3 (3) -4.1 μg/m3 (0) 11.0
 
Nov. 5, 2019, 2 a.m. 0.8 ppb (1) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 17.0 ppb (13) N/A 4.0 μg/m3 (4) N/A 13.0
 
Nov. 5, 2019, 1 a.m. 0.7 ppb (1) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 19.0 ppb (15) N/A 6.0 μg/m3 (5) -0.4 μg/m3 (0) 15.0
 
Nov. 5, 2019, midnight 0.7 ppb (1) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 5.0 μg/m3 (5) 1.1 μg/m3 (5) 18.0
 
Nov. 4, 2019, 11 p.m. 0.8 ppb (1) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 5.0 μg/m3 (5) -1.7 μg/m3 (0) 23.0
 
Nov. 4, 2019, 10 p.m. 0.7 ppb (1) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 4.0 μg/m3 (4) -1.3 μg/m3 (0) 24.0
 
Nov. 4, 2019, 9 p.m. 0.7 ppb (1) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 4.0 μg/m3 (4) -1.6 μg/m3 (0) 24.0
 
Nov. 4, 2019, 8 p.m. 0.7 ppb (1) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 3.0 μg/m3 (3) -2.0 μg/m3 (0) 24.0
 
Nov. 4, 2019, 7 p.m. 0.7 ppb (1) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 4.0 μg/m3 (4) -2.5 μg/m3 (0) 24.0
 
Nov. 4, 2019, 6 p.m. 1.1 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 3.0 μg/m3 (3) -1.1 μg/m3 (0) 22.0
 
Nov. 4, 2019, 5 p.m. 0.7 ppb (1) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 3.0 μg/m3 (3) 0.1 μg/m3 (0) 22.0
 
Nov. 4, 2019, 4 p.m. 1.3 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 4.0 μg/m3 (4) -0.7 μg/m3 (0) 19.0
 
Nov. 4, 2019, 3 p.m. 1.6 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 4.0 μg/m3 (4) N/A 18.0
 
Nov. 4, 2019, 2 p.m. 1.4 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 3.0 μg/m3 (3) N/A 18.0
 
Nov. 4, 2019, 1 p.m. 1.5 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 3.0 μg/m3 (3) N/A 18.0
 
Nov. 4, 2019, noon 1.1 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 3.0 μg/m3 (3) N/A 20.0
 
Nov. 4, 2019, 11 a.m. 0.8 ppb (1) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 4.0 μg/m3 (4) -4.0 μg/m3 (0) 20.0
 
Nov. 4, 2019, 10 a.m. 1.1 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 6.0 μg/m3 (5) 1.5 μg/m3 (6) 19.0
 
Nov. 4, 2019, 9 a.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (16) N/A 5.0 μg/m3 (5) 2.8 μg/m3 (12) 16.0
 
Nov. 4, 2019, 8 a.m. 1.0 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 6.0 μg/m3 (5) 1.0 μg/m3 (4) 18.0
 
Nov. 4, 2019, 7 a.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 7.0 μg/m3 (6) -2.1 μg/m3 (0) 17.0
 
Nov. 4, 2019, 6 a.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 6.0 μg/m3 (5) -1.7 μg/m3 (0) 18.0
 
Nov. 4, 2019, 5 a.m. 1.4 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 6.0 μg/m3 (5) -2.7 μg/m3 (0) 18.0
 
Nov. 4, 2019, 4 a.m. 1.6 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 5.0 μg/m3 (5) -0.8 μg/m3 (0) 18.0
 
Nov. 4, 2019, 3 a.m. 1.4 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 4.0 μg/m3 (4) -0.1 μg/m3 (0) 19.0
 
Nov. 4, 2019, 2 a.m. 1.3 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 5.0 μg/m3 (5) -3.5 μg/m3 (0) 20.0
 
Nov. 4, 2019, 1 a.m. 1.1 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 6.0 μg/m3 (5) -2.4 μg/m3 (0) 21.0
 
Nov. 4, 2019, midnight 1.9 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 5.0 μg/m3 (5) -2.5 μg/m3 (0) 20.0
 
Nov. 3, 2019, 11 p.m. 1.0 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 5.0 μg/m3 (5) -2.0 μg/m3 (0) 22.0
 
Nov. 3, 2019, 10 p.m. 1.1 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 4.0 μg/m3 (4) -0.2 μg/m3 (0) 23.0
 
Nov. 3, 2019, 9 p.m. 1.0 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 5.0 μg/m3 (5) 2.2 μg/m3 (9) 23.0
 
Nov. 3, 2019, 8 p.m. 1.2 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 5.0 μg/m3 (5) 4.2 μg/m3 (18) 21.0
 
Nov. 3, 2019, 7 p.m. 1.2 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 5.0 μg/m3 (5) 2.6 μg/m3 (11) 20.0
 
Nov. 3, 2019, 6 p.m. 1.2 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 6.0 μg/m3 (5) 1.1 μg/m3 (5) 19.0
 
Nov. 3, 2019, 5 p.m. 1.4 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 5.0 μg/m3 (5) 0.9 μg/m3 (4) 18.0
 
Nov. 3, 2019, 4 p.m. 1.2 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 7.0 μg/m3 (6) 0.5 μg/m3 (2) 18.0
 
Nov. 3, 2019, 3 p.m. 1.0 ppb (1) 0.5 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 8.0 μg/m3 (7) 1.0 μg/m3 (4) 17.0
 
Nov. 3, 2019, 2 p.m. 1.2 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 10.0 ppb (8) N/A 6.0 μg/m3 (5) 0.0 μg/m3 (0) 8.0
 
Nov. 3, 2019, 1 p.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 10.0 ppb (8) N/A 5.0 μg/m3 (5) -1.3 μg/m3 (0) 8.0
 
Nov. 3, 2019, noon 1.3 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 10.0 ppb (8) N/A 6.0 μg/m3 (5) 2.1 μg/m3 (9) 9.0
 
Nov. 3, 2019, 11 a.m. 1.3 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 10.0 ppb (8) N/A 6.0 μg/m3 (5) 3.2 μg/m3 (13) 13.0
 
Nov. 3, 2019, 10 a.m. 1.3 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 11.0 ppb (8) N/A 5.0 μg/m3 (5) 1.1 μg/m3 (5) 8.0
 
Nov. 3, 2019, 9 a.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 14.0 ppb (11) N/A 6.0 μg/m3 (5) -0.2 μg/m3 (0) 11.0
 
Nov. 3, 2019, 8 a.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 14.0 ppb (11) N/A 6.0 μg/m3 (5) 0.0 μg/m3 (0) 11.0
 
Nov. 3, 2019, 7 a.m. 1.4 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 18.0 ppb (14) N/A 6.0 μg/m3 (5) 0.3 μg/m3 (1) 14.0
 
Nov. 3, 2019, 6 a.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 12.0 ppb (9) N/A 6.0 μg/m3 (5) -0.5 μg/m3 (0) 9.0
 
Nov. 3, 2019, 5 a.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 16.0 ppb (12) N/A 5.0 μg/m3 (5) -3.5 μg/m3 (0) 12.0
 
Nov. 3, 2019, 4 a.m. 1.0 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 12.0 ppb (9) N/A 6.0 μg/m3 (5) -2.1 μg/m3 (0) 9.0
 
Nov. 3, 2019, 3 a.m. 1.1 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 13.0 ppb (10) N/A 5.0 μg/m3 (5) 1.1 μg/m3 (5) 10.0
 
Nov. 3, 2019, 2 a.m. 1.1 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 14.0 ppb (11) N/A 5.0 μg/m3 (5) 3.1 μg/m3 (13) 13.0
 
Nov. 3, 2019, 1 a.m. 1.1 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (15) N/A 6.0 μg/m3 (5) 2.5 μg/m3 (10) 15.0
 
Nov. 3, 2019, midnight 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 5.0 μg/m3 (5) 1.7 μg/m3 (7) 17.0
 
Nov. 2, 2019, 11 p.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 6.0 μg/m3 (5) 4.8 μg/m3 (20) 21.0
 
Nov. 2, 2019, 10 p.m. 1.3 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 6.0 μg/m3 (5) 2.8 μg/m3 (12) 21.0
 
Nov. 2, 2019, 9 p.m. 1.4 ppb (1) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 4.0 μg/m3 (4) 3.8 μg/m3 (16) 21.0
 
Nov. 2, 2019, 8 p.m. 0.9 ppb (1) 0.5 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 3.0 μg/m3 (3) 4.2 μg/m3 (18) 22.0
 
Nov. 2, 2019, 7 p.m. 0.9 ppb (1) 0.5 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 2.0 μg/m3 (2) -0.9 μg/m3 (0) 21.0
 
Nov. 2, 2019, 6 p.m. 0.9 ppb (1) 0.5 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 3.0 μg/m3 (3) -1.1 μg/m3 (0) 20.0
 
Nov. 2, 2019, 5 p.m. 1.0 ppb (1) 0.5 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 5.0 μg/m3 (5) 3.3 μg/m3 (14) 21.0
 
Nov. 2, 2019, 4 p.m. 2.7 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 22.0 ppb (17) N/A 6.0 μg/m3 (5) 4.6 μg/m3 (19) 19.0
 
Nov. 2, 2019, 3 p.m. 10.9 ppb (10) 4.6 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 9.0 ppb (7) N/A 5.0 μg/m3 (5) 0.7 μg/m3 (3) 10.0
 
Nov. 2, 2019, 2 p.m. 10.3 ppb (10) 4.3 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 6.0 ppb (5) N/A 3.0 μg/m3 (3) 0.3 μg/m3 (1) 10.0
 
Nov. 2, 2019, 1 p.m. 2.0 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 9.0 ppb (7) N/A 2.0 μg/m3 (2) -2.5 μg/m3 (0) 7.0
 
Nov. 2, 2019, noon 0.7 ppb (1) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 9.0 ppb (7) N/A 2.0 μg/m3 (2) -2.8 μg/m3 (0) 7.0
 
Nov. 2, 2019, 11 a.m. 0.8 ppb (1) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 10.0 ppb (8) N/A 3.0 μg/m3 (3) -1.0 μg/m3 (0) 8.0
 
Nov. 2, 2019, 10 a.m. 0.9 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 11.0 ppb (8) N/A 2.0 μg/m3 (2) 0.6 μg/m3 (2) 8.0
 
Nov. 2, 2019, 9 a.m. 1.0 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 13.0 ppb (10) N/A 3.0 μg/m3 (3) 0.0 μg/m3 (0) 10.0
 
Nov. 2, 2019, 8 a.m. 1.1 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 13.0 ppb (10) N/A 2.0 μg/m3 (2) -1.0 μg/m3 (0) 10.0
 
Nov. 2, 2019, 7 a.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 13.0 ppb (10) N/A 3.0 μg/m3 (3) -0.1 μg/m3 (0) 10.0
 
Nov. 2, 2019, 6 a.m. 1.3 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 15.0 ppb (12) N/A 2.0 μg/m3 (2) 0.9 μg/m3 (4) 12.0
 
Nov. 2, 2019, 5 a.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (15) N/A 3.0 μg/m3 (3) 1.4 μg/m3 (6) 15.0
 
Nov. 2, 2019, 4 a.m. 1.1 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 23.0 ppb (18) N/A 3.0 μg/m3 (3) -0.6 μg/m3 (0) 18.0
 
Nov. 2, 2019, 3 a.m. 1.1 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 3.0 μg/m3 (3) -2.5 μg/m3 (0) 20.0
 
Nov. 2, 2019, 2 a.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 3.0 μg/m3 (3) -2.1 μg/m3 (0) 21.0
 
Nov. 2, 2019, 1 a.m. 0.9 ppb (1) 0.5 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 4.0 μg/m3 (4) -1.9 μg/m3 (0) 22.0
 
Nov. 2, 2019, midnight 1.0 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 5.0 μg/m3 (5) -1.2 μg/m3 (0) 22.0
 
Nov. 1, 2019, 11 p.m. 1.1 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 5.0 μg/m3 (5) -1.6 μg/m3 (0) 22.0
 
Nov. 1, 2019, 10 p.m. 1.0 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 4.0 μg/m3 (4) -0.6 μg/m3 (0) 23.0
 
Nov. 1, 2019, 9 p.m. 1.0 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 3.0 μg/m3 (3) -3.7 μg/m3 (0) 22.0
 
Nov. 1, 2019, 8 p.m. 0.9 ppb (1) 0.5 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 4.0 μg/m3 (4) -3.4 μg/m3 (0) 22.0
 
Nov. 1, 2019, 7 p.m. 0.8 ppb (1) 0.5 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 2.0 μg/m3 (2) 2.7 μg/m3 (11) 23.0
 
Nov. 1, 2019, 6 p.m. 1.1 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 3.0 μg/m3 (3) 4.3 μg/m3 (18) 21.0
 
Nov. 1, 2019, 5 p.m. 1.0 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 23.0 ppb (18) N/A 5.0 μg/m3 (5) 2.2 μg/m3 (9) 18.0
 
Nov. 1, 2019, 4 p.m. 1.1 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 3.0 μg/m3 (3) -1.5 μg/m3 (0) 18.0
 
Nov. 1, 2019, 3 p.m. 1.1 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 2.0 μg/m3 (2) N/A 20.0
 
Nov. 1, 2019, 2 p.m. 0.9 ppb (1) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 1.0 μg/m3 (1) N/A 22.0
 
Nov. 1, 2019, 1 p.m. 0.7 ppb (1) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 0.0 μg/m3 (0) N/A 23.0
 
Nov. 1, 2019, noon 1.0 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) N/A -1.0 μg/m3 (0) N/A 19.0
 
Nov. 1, 2019, 11 a.m. 1.5 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A -4.1 μg/m3 (0) 15.0
 
Nov. 1, 2019, 10 a.m. 1.5 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A -1.9 μg/m3 (0) 16.0
 
Nov. 1, 2019, 9 a.m. 1.3 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (16) N/A 7.0 μg/m3 (6) -1.7 μg/m3 (0) 16.0
 
Nov. 1, 2019, 8 a.m. 1.3 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 22.0 ppb (17) N/A 7.0 μg/m3 (6) -1.1 μg/m3 (0) 17.0
 
Nov. 1, 2019, 7 a.m. 1.3 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 6.0 μg/m3 (5) 1.7 μg/m3 (7) 17.0
 
Nov. 1, 2019, 6 a.m. 1.2 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 7.0 μg/m3 (6) 1.3 μg/m3 (5) 18.0
 
Nov. 1, 2019, 5 a.m. 1.5 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 6.0 μg/m3 (5) -3.6 μg/m3 (0) 18.0
 
Nov. 1, 2019, 4 a.m. 1.5 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 7.0 μg/m3 (6) -2.7 μg/m3 (0) 19.0
 
Nov. 1, 2019, 3 a.m. 1.7 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 7.0 μg/m3 (6) -0.5 μg/m3 (0) 20.0
 
Nov. 1, 2019, 2 a.m. 1.8 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 9.0 μg/m3 (8) 3.8 μg/m3 (16) 20.0
 
Nov. 1, 2019, 1 a.m. 2.0 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 9.0 μg/m3 (8) 7.7 μg/m3 (32) 32.0
 
Nov. 1, 2019, midnight 1.9 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 8.0 μg/m3 (7) 1.9 μg/m3 (8) 21.0
 
Oct. 31, 2019, 11 p.m. 1.5 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 9.0 μg/m3 (8) -0.5 μg/m3 (0) 22.0
 
Oct. 31, 2019, 10 p.m. 1.4 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 9.0 μg/m3 (8) -0.1 μg/m3 (0) 22.0
 
Oct. 31, 2019, 9 p.m. 1.2 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 10.0 μg/m3 (9) 1.1 μg/m3 (5) 24.0
 
Oct. 31, 2019, 8 p.m. 1.2 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 10.0 μg/m3 (9) 0.6 μg/m3 (2) 24.0
 
Oct. 31, 2019, 7 p.m. 1.5 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 11.0 μg/m3 (10) 0.5 μg/m3 (2) 23.0
 
Oct. 31, 2019, 6 p.m. 1.7 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 12.0 μg/m3 (11) 0.1 μg/m3 (0) 22.0
 
Oct. 31, 2019, 5 p.m. 1.6 ppb (1) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 9.0 μg/m3 (8) -2.1 μg/m3 (0) 22.0
 
Oct. 31, 2019, 4 p.m. 1.1 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 9.0 μg/m3 (8) -0.3 μg/m3 (0) 22.0
 
Oct. 31, 2019, 3 p.m. 1.0 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 5.0 μg/m3 (5) -0.5 μg/m3 (0) 22.0
 
Oct. 31, 2019, 2 p.m. 1.0 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 4.0 μg/m3 (4) 0.4 μg/m3 (2) 22.0
 
Oct. 31, 2019, 1 p.m. 0.9 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 3.0 μg/m3 (3) 1.5 μg/m3 (6) 22.0
 
Oct. 31, 2019, noon 1.0 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 3.0 μg/m3 (3) -0.6 μg/m3 (0) 20.0
 
Oct. 31, 2019, 11 a.m. 1.0 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 3.0 μg/m3 (3) 1.5 μg/m3 (6) 21.0
 
Oct. 31, 2019, 10 a.m. 1.0 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 3.0 μg/m3 (3) 5.6 μg/m3 (23) 23.0
 
Oct. 31, 2019, 9 a.m. 1.0 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 4.0 μg/m3 (4) 7.2 μg/m3 (30) 30.0
 
Oct. 31, 2019, 8 a.m. 1.0 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 5.0 μg/m3 (5) 2.0 μg/m3 (8) 21.0
 
Oct. 31, 2019, 7 a.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 7.0 μg/m3 (6) 1.6 μg/m3 (7) 18.0
 
Oct. 31, 2019, 6 a.m. 2.8 ppb (3) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 11.0 ppb (8) N/A 4.0 μg/m3 (4) -0.6 μg/m3 (0) 8.0
 
Oct. 31, 2019, 5 a.m. 1.0 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 11.0 ppb (8) N/A 4.0 μg/m3 (4) -2.6 μg/m3 (0) 8.0
 
Oct. 31, 2019, 4 a.m. 0.7 ppb (1) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 12.0 ppb (9) N/A 5.0 μg/m3 (5) -1.5 μg/m3 (0) 9.0
 
Oct. 31, 2019, 3 a.m. 0.7 ppb (1) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 15.0 ppb (12) N/A 5.0 μg/m3 (5) -2.2 μg/m3 (0) 12.0
 
Oct. 31, 2019, 2 a.m. 0.7 ppb (1) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 19.0 ppb (15) N/A 5.0 μg/m3 (5) -4.3 μg/m3 (0) 15.0
 
Oct. 31, 2019, 1 a.m. 0.7 ppb (1) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 5.0 μg/m3 (5) -3.8 μg/m3 (0) 19.0
 
Oct. 31, 2019, midnight 0.7 ppb (1) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 6.0 μg/m3 (5) -0.3 μg/m3 (0) 22.0