AQSQID: 380650002

Site Name: Hannover

Location: Stanton (N Dakota Hwy 31), ND

Reporting: True, Located: True

Current AQI: 44.0

Stanton (N Dakota Hwy 31) ND, US: 47.1858, -101.4281

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 6, 2020, 3 p.m. 2.9 ppb (3) 2.3 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 3.0 μg/m3 (3) 0.8 μg/m3 (3) 24.0
 
Jan. 6, 2020, 2 p.m. 3.1 ppb (3) 2.5 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 3.0 μg/m3 (3) 0.5 μg/m3 (2) 24.0
 
Jan. 6, 2020, 1 p.m. 3.1 ppb (3) 2.4 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 6.0 μg/m3 (5) 0.5 μg/m3 (2) 24.0
 
Jan. 6, 2020, noon 3.2 ppb (3) 2.7 ppb (3) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 3.0 μg/m3 (3) 0.2 μg/m3 (1) 25.0
 
Jan. 6, 2020, 11 a.m. 3.1 ppb (3) 2.7 ppb (3) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 2.0 μg/m3 (2) 1.8 μg/m3 (8) 25.0
 
Jan. 6, 2020, 10 a.m. 3.0 ppb (3) 2.6 ppb (2) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 2.0 μg/m3 (2) 1.3 μg/m3 (5) 27.0
 
Jan. 6, 2020, 9 a.m. 3.1 ppb (3) 2.8 ppb (3) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 2.0 μg/m3 (2) 1.7 μg/m3 (7) 26.0
 
Jan. 6, 2020, 8 a.m. 3.2 ppb (3) 2.8 ppb (3) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 2.0 μg/m3 (2) 0.8 μg/m3 (3) 25.0
 
Jan. 6, 2020, 7 a.m. 3.6 ppb (3) 3.1 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 1.0 μg/m3 (1) -1.9 μg/m3 (0) 25.0
 
Jan. 6, 2020, 6 a.m. 3.2 ppb (3) 2.7 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 2.0 μg/m3 (2) -1.6 μg/m3 (0) 25.0
 
Jan. 6, 2020, 5 a.m. 3.8 ppb (4) 3.3 ppb (3) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 2.0 μg/m3 (2) 0.4 μg/m3 (2) 25.0
 
Jan. 6, 2020, 4 a.m. 3.2 ppb (3) 2.7 ppb (3) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 3.0 μg/m3 (3) 2.6 μg/m3 (11) 25.0
 
Jan. 6, 2020, 3 a.m. 3.3 ppb (3) 2.7 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 3.0 μg/m3 (3) 2.3 μg/m3 (10) 25.0
 
Jan. 6, 2020, 2 a.m. 3.3 ppb (3) 2.7 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 3.0 μg/m3 (3) 1.2 μg/m3 (5) 25.0
 
Jan. 6, 2020, 1 a.m. 3.1 ppb (3) 2.7 ppb (3) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 4.0 μg/m3 (4) 0.6 μg/m3 (2) 25.0
 
Jan. 6, 2020, midnight 3.2 ppb (3) 2.8 ppb (3) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 5.0 μg/m3 (5) -0.2 μg/m3 (0) 25.0
 
Jan. 5, 2020, 11 p.m. 3.6 ppb (3) 3.0 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 3.0 μg/m3 (3) -0.6 μg/m3 (0) 25.0
 
Jan. 5, 2020, 10 p.m. 3.3 ppb (3) 2.8 ppb (3) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 4.0 μg/m3 (4) 1.4 μg/m3 (6) 26.0
 
Jan. 5, 2020, 9 p.m. 2.7 ppb (3) 2.2 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 3.0 μg/m3 (3) 1.5 μg/m3 (6) 27.0
 
Jan. 5, 2020, 8 p.m. 1.4 ppb (1) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 2.0 μg/m3 (2) 0.0 μg/m3 (0) 28.0
 
Jan. 5, 2020, 7 p.m. 1.4 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 1.0 μg/m3 (1) -0.5 μg/m3 (0) 28.0
 
Jan. 5, 2020, 6 p.m. 3.7 ppb (3) 1.9 ppb (2) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 36.0 ppb (28) N/A 2.0 μg/m3 (2) 0.0 μg/m3 (0) 28.0
 
Jan. 5, 2020, 5 p.m. 2.5 ppb (2) 1.5 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 2.0 μg/m3 (2) 1.1 μg/m3 (5) 28.0
 
Jan. 5, 2020, 4 p.m. 1.9 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 3.0 μg/m3 (3) 2.6 μg/m3 (11) 28.0
 
Jan. 5, 2020, 3 p.m. 2.2 ppb (2) 1.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 5.0 μg/m3 (5) 3.1 μg/m3 (13) 27.0
 
Jan. 5, 2020, 2 p.m. 3.7 ppb (3) 1.1 ppb (1) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 34.0 ppb (26) N/A 4.0 μg/m3 (4) 0.8 μg/m3 (3) 26.0
 
Jan. 5, 2020, 1 p.m. 4.5 ppb (4) 2.2 ppb (2) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 34.0 ppb (26) N/A 4.0 μg/m3 (4) 1.2 μg/m3 (5) 26.0
 
Jan. 5, 2020, noon 4.1 ppb (4) 2.4 ppb (2) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 34.0 ppb (26) N/A 4.0 μg/m3 (4) 3.3 μg/m3 (14) 26.0
 
Jan. 5, 2020, 11 a.m. 4.0 ppb (4) 2.3 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 5.0 μg/m3 (5) 3.8 μg/m3 (16) 27.0
 
Jan. 5, 2020, 10 a.m. 6.6 ppb (6) 2.5 ppb (2) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 33.0 ppb (25) N/A 5.0 μg/m3 (5) 4.5 μg/m3 (19) 25.0
 
Jan. 5, 2020, 9 a.m. 6.8 ppb (6) 2.8 ppb (3) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 32.0 ppb (25) N/A 6.0 μg/m3 (5) 5.9 μg/m3 (25) 25.0
 
Jan. 5, 2020, 8 a.m. 5.0 ppb (5) 2.6 ppb (2) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 34.0 ppb (26) N/A 10.0 μg/m3 (9) 1.1 μg/m3 (5) 26.0
 
Jan. 5, 2020, 7 a.m. 4.0 ppb (4) 2.4 ppb (2) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 36.0 ppb (28) N/A 14.0 μg/m3 (13) 3.0 μg/m3 (12) 28.0
 
Jan. 5, 2020, 6 a.m. 5.1 ppb (5) 2.9 ppb (3) N/A 2.0 ppb (2) N/A 4.0 ppb (6) 38.0 ppb (29) N/A 7.0 μg/m3 (6) 3.6 μg/m3 (15) 29.0
 
Jan. 5, 2020, 5 a.m. 5.4 ppb (5) 2.6 ppb (2) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 37.0 ppb (28) N/A 7.0 μg/m3 (6) 2.2 μg/m3 (9) 28.0
 
Jan. 5, 2020, 4 a.m. 4.2 ppb (4) 2.7 ppb (3) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 36.0 ppb (28) N/A 7.0 μg/m3 (6) 2.2 μg/m3 (9) 28.0
 
Jan. 5, 2020, 3 a.m. 4.3 ppb (4) 3.0 ppb (3) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 33.0 ppb (25) N/A 7.0 μg/m3 (6) 0.0 μg/m3 (0) 25.0
 
Jan. 5, 2020, 2 a.m. 4.4 ppb (4) 3.2 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 4.0 μg/m3 (4) 0.2 μg/m3 (1) 25.0
 
Jan. 5, 2020, 1 a.m. 4.2 ppb (4) 2.9 ppb (3) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 31.0 ppb (24) N/A 6.0 μg/m3 (5) -1.4 μg/m3 (0) 24.0
 
Jan. 5, 2020, midnight 3.9 ppb (4) 2.9 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 5.0 μg/m3 (5) -1.7 μg/m3 (0) 24.0
 
Jan. 4, 2020, 11 p.m. 4.0 ppb (4) 3.1 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 4.0 μg/m3 (4) -0.4 μg/m3 (0) 25.0
 
Jan. 4, 2020, 10 p.m. 4.1 ppb (4) 3.1 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 5.0 μg/m3 (5) -1.4 μg/m3 (0) 26.0
 
Jan. 4, 2020, 9 p.m. 4.8 ppb (4) 3.8 ppb (4) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 4.0 μg/m3 (4) -0.9 μg/m3 (0) 25.0
 
Jan. 4, 2020, 8 p.m. 5.2 ppb (5) 3.9 ppb (4) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 3.0 μg/m3 (3) 0.1 μg/m3 (0) 23.0
 
Jan. 4, 2020, 7 p.m. 5.8 ppb (5) 4.2 ppb (4) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 4.0 μg/m3 (4) 0.8 μg/m3 (3) 22.0
 
Jan. 4, 2020, 6 p.m. 3.2 ppb (3) 2.0 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 3.0 μg/m3 (3) 2.6 μg/m3 (11) 23.0
 
Jan. 4, 2020, 5 p.m. 2.5 ppb (2) 1.4 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) 3.1 μg/m3 (13) 22.0
 
Jan. 4, 2020, 4 p.m. 3.5 ppb (3) 1.9 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 2.0 μg/m3 (2) -0.4 μg/m3 (0) 22.0
 
Jan. 4, 2020, 3 p.m. 2.0 ppb (2) 1.1 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) 0.7 μg/m3 (3) 22.0
 
Jan. 4, 2020, 2 p.m. 1.6 ppb (1) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 3.0 μg/m3 (3) 4.0 μg/m3 (17) 23.0
 
Jan. 4, 2020, 1 p.m. 2.1 ppb (2) 1.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 2.0 μg/m3 (2) 4.4 μg/m3 (18) 24.0
 
Jan. 4, 2020, noon 3.2 ppb (3) 2.2 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 2.0 μg/m3 (2) 1.4 μg/m3 (6) 25.0
 
Jan. 4, 2020, 11 a.m. 4.0 ppb (4) 3.0 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 1.0 μg/m3 (1) 1.1 μg/m3 (5) 25.0
 
Jan. 4, 2020, 10 a.m. 4.0 ppb (4) 2.8 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 0.0 μg/m3 (0) 1.2 μg/m3 (5) 25.0
 
Jan. 4, 2020, 9 a.m. 4.6 ppb (4) 2.5 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 2.0 μg/m3 (2) 2.9 μg/m3 (12) 23.0
 
Jan. 4, 2020, 8 a.m. 4.2 ppb (4) 2.3 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 3.0 μg/m3 (3) 3.6 μg/m3 (15) 25.0
 
Jan. 4, 2020, 7 a.m. 3.8 ppb (4) 2.4 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 2.0 μg/m3 (2) 0.8 μg/m3 (3) 25.0
 
Jan. 4, 2020, 6 a.m. 1.8 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 2.0 μg/m3 (2) 0.1 μg/m3 (0) 27.0
 
Jan. 4, 2020, 5 a.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 3.0 μg/m3 (3) 1.5 μg/m3 (6) 27.0
 
Jan. 4, 2020, 4 a.m. 2.6 ppb (2) 1.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 5.0 μg/m3 (5) 2.3 μg/m3 (10) 26.0
 
Jan. 4, 2020, 3 a.m. 1.9 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 3.0 μg/m3 (3) 2.8 μg/m3 (12) 26.0
 
Jan. 4, 2020, 2 a.m. 2.1 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 3.0 μg/m3 (3) N/A 26.0
 
Jan. 4, 2020, 1 a.m. 4.1 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 2.0 μg/m3 (2) N/A 25.0
 
Jan. 4, 2020, midnight 4.3 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 4.0 μg/m3 (4) 4.5 μg/m3 (19) 26.0
 
Jan. 3, 2020, 11 p.m. 4.9 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 5.0 μg/m3 (5) 4.9 μg/m3 (20) 26.0
 
Jan. 3, 2020, 10 p.m. 5.5 ppb (5) 1.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 6.0 μg/m3 (5) 2.5 μg/m3 (10) 26.0
 
Jan. 3, 2020, 9 p.m. 4.6 ppb (4) 1.7 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 5.0 μg/m3 (5) 2.1 μg/m3 (9) 28.0
 
Jan. 3, 2020, 8 p.m. 3.0 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 4.0 μg/m3 (4) 1.2 μg/m3 (5) 28.0
 
Jan. 3, 2020, 7 p.m. 2.2 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 3.0 μg/m3 (3) N/A 29.0
 
Jan. 3, 2020, 6 p.m. 2.8 ppb (3) 1.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 2.0 μg/m3 (2) N/A 28.0
 
Jan. 3, 2020, 5 p.m. 3.8 ppb (4) 2.6 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 3.0 μg/m3 (3) N/A 28.0
 
Jan. 3, 2020, 4 p.m. 4.2 ppb (4) 2.8 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 4.0 μg/m3 (4) N/A 28.0
 
Jan. 3, 2020, 3 p.m. 5.1 ppb (5) 2.8 ppb (3) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 36.0 ppb (28) N/A 3.0 μg/m3 (3) N/A 28.0
 
Jan. 3, 2020, 2 p.m. 4.0 ppb (4) 2.4 ppb (2) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 36.0 ppb (28) N/A 3.0 μg/m3 (3) N/A 28.0
 
Jan. 3, 2020, 1 p.m. 5.6 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 35.0 ppb (27) N/A 3.0 μg/m3 (3) N/A 27.0
 
Jan. 3, 2020, noon 6.6 ppb (6) 2.5 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 34.0 ppb (26) N/A 5.0 μg/m3 (5) N/A 26.0
 
Jan. 3, 2020, 11 a.m. 5.2 ppb (5) 2.6 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 3.0 μg/m3 (3) N/A 28.0
 
Jan. 3, 2020, 10 a.m. 5.1 ppb (5) 2.6 ppb (2) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 35.0 ppb (27) N/A 4.0 μg/m3 (4) N/A 27.0
 
Jan. 3, 2020, 9 a.m. 4.3 ppb (4) 2.9 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 4.0 μg/m3 (4) N/A 28.0
 
Jan. 3, 2020, 8 a.m. 4.6 ppb (4) 3.1 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 5.0 μg/m3 (5) N/A 25.0
 
Jan. 3, 2020, 7 a.m. 4.7 ppb (4) 3.6 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 6.0 μg/m3 (5) N/A 25.0
 
Jan. 3, 2020, 6 a.m. 4.9 ppb (5) 4.0 ppb (4) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 4.0 μg/m3 (4) N/A 28.0
 
Jan. 3, 2020, 5 a.m. 5.9 ppb (5) 3.7 ppb (3) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 5.0 μg/m3 (5) N/A 26.0
 
Jan. 3, 2020, 4 a.m. 5.5 ppb (5) 3.6 ppb (3) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 4.0 μg/m3 (4) N/A 26.0
 
Jan. 3, 2020, 3 a.m. 5.7 ppb (5) 3.8 ppb (4) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 3.0 μg/m3 (3) N/A 25.0
 
Jan. 3, 2020, 2 a.m. 5.6 ppb (5) 3.9 ppb (4) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 4.0 μg/m3 (4) N/A 25.0
 
Jan. 3, 2020, 1 a.m. 6.3 ppb (6) 4.2 ppb (4) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 5.0 μg/m3 (5) N/A 25.0
 
Jan. 3, 2020, midnight 7.6 ppb (7) 4.7 ppb (4) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 5.0 μg/m3 (5) N/A 24.0
 
Jan. 2, 2020, 11 p.m. 7.2 ppb (7) 4.1 ppb (4) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 5.0 μg/m3 (5) N/A 23.0
 
Jan. 2, 2020, 10 p.m. 6.8 ppb (6) 4.0 ppb (4) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 5.0 μg/m3 (5) N/A 25.0
 
Jan. 2, 2020, 9 p.m. 4.2 ppb (4) 2.5 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 6.0 μg/m3 (5) N/A 25.0
 
Jan. 2, 2020, 8 p.m. 6.1 ppb (6) 3.9 ppb (4) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 6.0 μg/m3 (5) N/A 23.0
 
Jan. 2, 2020, 7 p.m. 6.7 ppb (6) 4.3 ppb (4) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 3.0 μg/m3 (3) N/A 22.0
 
Jan. 2, 2020, 6 p.m. 5.0 ppb (5) 3.4 ppb (3) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 3.0 μg/m3 (3) N/A 21.0
 
Jan. 2, 2020, 5 p.m. 4.5 ppb (4) 2.2 ppb (2) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 26.0 ppb (20) N/A 4.0 μg/m3 (4) N/A 20.0
 
Jan. 2, 2020, 4 p.m. 3.9 ppb (4) 1.6 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 26.0 ppb (20) N/A 4.0 μg/m3 (4) N/A 20.0
 
Jan. 2, 2020, 3 p.m. 4.2 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 26.0 ppb (20) N/A 5.0 μg/m3 (5) N/A 20.0
 
Jan. 2, 2020, 2 p.m. 4.0 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 25.0 ppb (19) N/A 4.0 μg/m3 (4) N/A 19.0
 
Jan. 2, 2020, 1 p.m. 4.4 ppb (4) 1.2 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 5.0 μg/m3 (5) N/A 21.0
 
Jan. 2, 2020, noon 6.0 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 26.0 ppb (20) N/A 8.0 μg/m3 (7) N/A 20.0
 
Jan. 2, 2020, 11 a.m. 4.5 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 5.0 μg/m3 (5) N/A 23.0
 
Jan. 2, 2020, 10 a.m. 5.1 ppb (5) 1.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 6.0 μg/m3 (5) N/A 21.0
 
Jan. 2, 2020, 9 a.m. 4.5 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 6.0 μg/m3 (5) N/A 21.0
 
Jan. 2, 2020, 8 a.m. 4.3 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 6.0 μg/m3 (5) N/A 22.0
 
Jan. 2, 2020, 7 a.m. 4.0 ppb (4) 1.2 ppb (1) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 30.0 ppb (23) N/A 6.0 μg/m3 (5) N/A 23.0
 
Jan. 2, 2020, 6 a.m. 3.6 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 28.0 ppb (22) N/A 6.0 μg/m3 (5) N/A 22.0
 
Jan. 2, 2020, 5 a.m. 2.9 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 29.0 ppb (22) N/A 6.0 μg/m3 (5) N/A 22.0
 
Jan. 2, 2020, 4 a.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 25.0 ppb (19) N/A 7.0 μg/m3 (6) N/A 19.0
 
Jan. 2, 2020, 3 a.m. 3.9 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 25.0 ppb (19) N/A 5.0 μg/m3 (5) N/A 19.0
 
Jan. 2, 2020, 2 a.m. 3.4 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 26.0 ppb (20) N/A 5.0 μg/m3 (5) N/A 20.0
 
Jan. 2, 2020, 1 a.m. 4.1 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 5.0 μg/m3 (5) N/A 20.0
 
Jan. 2, 2020, midnight 5.5 ppb (5) 1.3 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 24.0 ppb (18) N/A 5.0 μg/m3 (5) N/A 18.0
 
Jan. 1, 2020, 11 p.m. 3.8 ppb (4) 1.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 5.0 μg/m3 (5) N/A 20.0
 
Jan. 1, 2020, 10 p.m. 3.6 ppb (3) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 28.0 ppb (22) N/A 6.0 μg/m3 (5) N/A 22.0
 
Jan. 1, 2020, 9 p.m. 2.6 ppb (2) 1.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 5.0 μg/m3 (5) N/A 22.0
 
Jan. 1, 2020, 8 p.m. 3.2 ppb (3) 1.6 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 29.0 ppb (22) N/A 4.0 μg/m3 (4) -0.1 μg/m3 (0) 22.0
 
Jan. 1, 2020, 7 p.m. 2.0 ppb (2) 1.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 4.0 μg/m3 (4) -0.8 μg/m3 (0) 23.0
 
Jan. 1, 2020, 6 p.m. 1.8 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 5.0 μg/m3 (5) -0.9 μg/m3 (0) 24.0
 
Jan. 1, 2020, 5 p.m. 2.6 ppb (2) 1.7 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 4.0 μg/m3 (4) -0.6 μg/m3 (0) 25.0
 
Jan. 1, 2020, 4 p.m. 3.4 ppb (3) 2.5 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 3.0 μg/m3 (3) 0.1 μg/m3 (0) 25.0
 
Jan. 1, 2020, 3 p.m. 3.2 ppb (3) 2.2 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 4.0 μg/m3 (4) 0.5 μg/m3 (2) 26.0
 
Jan. 1, 2020, 2 p.m. 3.2 ppb (3) 2.4 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 4.0 μg/m3 (4) 1.9 μg/m3 (8) 26.0
 
Jan. 1, 2020, 1 p.m. 4.0 ppb (4) 3.1 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 3.0 μg/m3 (3) -0.6 μg/m3 (0) 26.0
 
Jan. 1, 2020, noon 4.6 ppb (4) 3.6 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 3.0 μg/m3 (3) -2.0 μg/m3 (0) 25.0
 
Jan. 1, 2020, 11 a.m. 4.8 ppb (4) 3.9 ppb (4) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 3.0 μg/m3 (3) -0.3 μg/m3 (0) 26.0
 
Jan. 1, 2020, 10 a.m. 4.5 ppb (4) 3.6 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 3.0 μg/m3 (3) -0.5 μg/m3 (0) 27.0
 
Jan. 1, 2020, 9 a.m. 3.7 ppb (3) 2.8 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 3.0 μg/m3 (3) -0.5 μg/m3 (0) 27.0
 
Jan. 1, 2020, 8 a.m. 3.8 ppb (4) 3.0 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 6.0 μg/m3 (5) -1.0 μg/m3 (0) 27.0
 
Jan. 1, 2020, 7 a.m. 3.9 ppb (4) 3.0 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 6.0 μg/m3 (5) -0.8 μg/m3 (0) 27.0
 
Jan. 1, 2020, 6 a.m. 4.3 ppb (4) 3.2 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 3.0 μg/m3 (3) 0.5 μg/m3 (2) 26.0
 
Jan. 1, 2020, 5 a.m. 3.8 ppb (4) 2.9 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 4.0 μg/m3 (4) 1.2 μg/m3 (5) 27.0
 
Jan. 1, 2020, 4 a.m. 3.5 ppb (3) 2.7 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 5.0 μg/m3 (5) 0.1 μg/m3 (0) 28.0
 
Jan. 1, 2020, 3 a.m. 2.6 ppb (2) 1.8 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 3.0 μg/m3 (3) 0.2 μg/m3 (1) 28.0
 
Jan. 1, 2020, 2 a.m. 2.8 ppb (3) 1.9 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 5.0 μg/m3 (5) 1.0 μg/m3 (4) 28.0
 
Jan. 1, 2020, 1 a.m. 2.3 ppb (2) 1.5 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 6.0 μg/m3 (5) 0.0 μg/m3 (0) 28.0
 
Jan. 1, 2020, midnight 2.2 ppb (2) 1.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 9.0 μg/m3 (8) -0.7 μg/m3 (0) 28.0
 
Dec. 31, 2019, 11 p.m. 2.7 ppb (3) 1.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 11.0 μg/m3 (10) 1.2 μg/m3 (5) 29.0
 
Dec. 31, 2019, 10 p.m. 2.9 ppb (3) 1.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 15.0 μg/m3 (14) 3.9 μg/m3 (16) 28.0
 
Dec. 31, 2019, 9 p.m. 3.5 ppb (3) 2.2 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 9.0 μg/m3 (8) 4.7 μg/m3 (20) 29.0
 
Dec. 31, 2019, 8 p.m. 2.7 ppb (3) 1.4 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 7.0 μg/m3 (6) 4.6 μg/m3 (19) 28.0
 
Dec. 31, 2019, 7 p.m. 2.8 ppb (3) 1.4 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 7.0 μg/m3 (6) 2.7 μg/m3 (11) 26.0
 
Dec. 31, 2019, 6 p.m. 2.5 ppb (2) 1.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 6.0 μg/m3 (5) N/A 26.0
 
Dec. 31, 2019, 5 p.m. 2.6 ppb (2) 1.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 2.0 μg/m3 (2) N/A 25.0
 
Dec. 31, 2019, 4 p.m. 3.7 ppb (3) 2.3 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 2.0 μg/m3 (2) N/A 24.0
 
Dec. 31, 2019, 3 p.m. 3.4 ppb (3) 2.0 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 2.0 μg/m3 (2) 1.4 μg/m3 (6) 22.0
 
Dec. 31, 2019, 2 p.m. 3.1 ppb (3) 1.8 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 4.0 μg/m3 (4) 3.8 μg/m3 (16) 22.0
 
Dec. 31, 2019, 1 p.m. 3.0 ppb (3) 1.7 ppb (2) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 29.0 ppb (22) N/A 2.0 μg/m3 (2) 4.0 μg/m3 (17) 22.0
 
Dec. 31, 2019, noon 3.6 ppb (3) 1.9 ppb (2) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 28.0 ppb (22) N/A 3.0 μg/m3 (3) 4.6 μg/m3 (19) 22.0
 
Dec. 31, 2019, 11 a.m. 3.5 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 28.0 ppb (22) N/A 3.0 μg/m3 (3) 6.5 μg/m3 (27) 27.0
 
Dec. 31, 2019, 10 a.m. 4.3 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 27.0 ppb (21) N/A 4.0 μg/m3 (4) 10.8 μg/m3 (45) 45.0
 
Dec. 31, 2019, 9 a.m. 4.8 ppb (4) 1.3 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 27.0 ppb (21) N/A 5.0 μg/m3 (5) 8.0 μg/m3 (33) 33.0
 
Dec. 31, 2019, 8 a.m. 5.6 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 26.0 ppb (20) N/A 6.0 μg/m3 (5) 4.9 μg/m3 (20) 20.0
 
Dec. 31, 2019, 7 a.m. 8.0 ppb (7) 3.3 ppb (3) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 26.0 ppb (20) N/A 4.0 μg/m3 (4) 7.7 μg/m3 (32) 32.0
 
Dec. 31, 2019, 6 a.m. 8.0 ppb (7) 2.6 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 7.0 μg/m3 (6) 9.0 μg/m3 (38) 38.0
 
Dec. 31, 2019, 5 a.m. 8.6 ppb (8) 2.5 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 24.0 ppb (18) N/A 8.0 μg/m3 (7) 6.9 μg/m3 (29) 29.0
 
Dec. 31, 2019, 4 a.m. 8.7 ppb (8) 2.1 ppb (2) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 23.0 ppb (18) N/A 9.0 μg/m3 (8) 5.1 μg/m3 (21) 21.0
 
Dec. 31, 2019, 3 a.m. 8.4 ppb (8) 2.2 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 24.0 ppb (18) N/A 12.0 μg/m3 (11) 5.3 μg/m3 (22) 22.0
 
Dec. 31, 2019, 2 a.m. 7.2 ppb (7) 1.3 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 13.0 μg/m3 (12) 4.9 μg/m3 (20) 20.0
 
Dec. 31, 2019, 1 a.m. 7.8 ppb (7) 1.5 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 13.0 μg/m3 (12) 3.9 μg/m3 (16) 19.0
 
Dec. 31, 2019, midnight 8.1 ppb (8) 1.9 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 13.0 μg/m3 (12) 4.8 μg/m3 (20) 20.0
 
Dec. 30, 2019, 11 p.m. 9.2 ppb (9) 2.6 ppb (2) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 14.0 μg/m3 (13) 2.7 μg/m3 (11) 21.0
 
Dec. 30, 2019, 10 p.m. 6.6 ppb (6) 1.7 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 10.0 μg/m3 (9) 1.4 μg/m3 (6) 22.0
 
Dec. 30, 2019, 9 p.m. 5.3 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 11.0 μg/m3 (10) 1.2 μg/m3 (5) 24.0
 
Dec. 30, 2019, 8 p.m. 4.8 ppb (4) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 12.0 μg/m3 (11) 2.4 μg/m3 (10) 25.0
 
Dec. 30, 2019, 7 p.m. 4.6 ppb (4) 2.1 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 8.0 μg/m3 (7) 1.9 μg/m3 (8) 26.0
 
Dec. 30, 2019, 6 p.m. 5.8 ppb (5) 2.9 ppb (3) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 9.0 μg/m3 (8) 2.5 μg/m3 (10) 27.0
 
Dec. 30, 2019, 5 p.m. 5.2 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 6.0 μg/m3 (5) 2.9 μg/m3 (12) 27.0
 
Dec. 30, 2019, 4 p.m. 4.8 ppb (4) 2.1 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 5.0 μg/m3 (5) 0.2 μg/m3 (1) 26.0