AQSQID: 380130004

Site Name: Lostwood Nwr

Location: Burke Co, ND

Reporting: True, Located: True

Current AQI: 54.0

Burke Co ND, US: 48.641899, -102.402199

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 21, 2019, 6 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 14.0 μg/m3 (13) 13.7 μg/m3 (54) 54.0
 
Jan. 21, 2019, 5 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 15.0 μg/m3 (14) 10.8 μg/m3 (45) 45.0
 
Jan. 21, 2019, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 12.0 μg/m3 (11) 9.8 μg/m3 (41) 41.0
 
Jan. 21, 2019, 3 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 11.0 μg/m3 (10) 12.9 μg/m3 (52) 52.0
 
Jan. 21, 2019, 2 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 10.0 μg/m3 (9) 7.1 μg/m3 (30) 30.0
 
Jan. 21, 2019, 1 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 9.0 μg/m3 (8) 7.6 μg/m3 (32) 32.0
 
Jan. 21, 2019, midnight 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 7.0 μg/m3 (6) 9.1 μg/m3 (38) 38.0
 
Jan. 20, 2019, 11 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 7.0 μg/m3 (6) 6.2 μg/m3 (26) 27.0
 
Jan. 20, 2019, 10 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 9.0 μg/m3 (8) 5.4 μg/m3 (23) 26.0
 
Jan. 20, 2019, 9 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 9.0 μg/m3 (8) 3.0 μg/m3 (12) 26.0
 
Jan. 20, 2019, 8 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 9.0 μg/m3 (8) 4.9 μg/m3 (20) 25.0
 
Jan. 20, 2019, 7 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 7.0 μg/m3 (6) 4.5 μg/m3 (19) 25.0
 
Jan. 20, 2019, 6 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 7.0 μg/m3 (6) -0.7 μg/m3 (0) 25.0
 
Jan. 20, 2019, 5 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 8.0 μg/m3 (7) 0.0 μg/m3 (0) 24.0
 
Jan. 20, 2019, 4 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 7.0 μg/m3 (6) 3.5 μg/m3 (15) 22.0
 
Jan. 20, 2019, 3 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 7.0 μg/m3 (6) 1.9 μg/m3 (8) 23.0
 
Jan. 20, 2019, 2 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 8.0 μg/m3 (7) 4.2 μg/m3 (18) 24.0
 
Jan. 20, 2019, 1 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 6.0 μg/m3 (5) 5.5 μg/m3 (23) 25.0
 
Jan. 20, 2019, noon 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 7.0 μg/m3 (6) 3.1 μg/m3 (13) 25.0
 
Jan. 20, 2019, 11 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 7.0 μg/m3 (6) 4.4 μg/m3 (18) 25.0
 
Jan. 20, 2019, 10 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 8.0 μg/m3 (7) 4.6 μg/m3 (19) 25.0
 
Jan. 20, 2019, 9 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 7.0 μg/m3 (6) 3.3 μg/m3 (14) 25.0
 
Jan. 20, 2019, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 6.0 μg/m3 (5) 3.7 μg/m3 (15) 26.0
 
Jan. 20, 2019, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 6.0 μg/m3 (5) 5.5 μg/m3 (23) 27.0
 
Jan. 20, 2019, 6 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 6.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2019, 5 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 11.0 μg/m3 (10) 3.3 μg/m3 (14) 27.0
 
Jan. 20, 2019, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 11.0 μg/m3 (10) 1.9 μg/m3 (8) 27.0
 
Jan. 20, 2019, 3 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 12.0 μg/m3 (11) 2.6 μg/m3 (11) 26.0
 
Jan. 20, 2019, 2 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 9.0 μg/m3 (8) 2.4 μg/m3 (10) 25.0
 
Jan. 20, 2019, 1 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 16.0 μg/m3 (15) 1.9 μg/m3 (8) 25.0
 
Jan. 20, 2019, midnight 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 10.0 μg/m3 (9) 4.1 μg/m3 (17) 25.0
 
Jan. 19, 2019, 11 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 9.0 μg/m3 (8) 6.4 μg/m3 (27) 27.0
 
Jan. 19, 2019, 10 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 7.0 μg/m3 (6) 5.4 μg/m3 (23) 25.0
 
Jan. 19, 2019, 9 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 8.0 μg/m3 (7) 4.9 μg/m3 (20) 25.0
 
Jan. 19, 2019, 8 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 8.0 μg/m3 (7) 3.9 μg/m3 (16) 24.0
 
Jan. 19, 2019, 7 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 4.0 μg/m3 (4) 5.1 μg/m3 (21) 24.0
 
Jan. 19, 2019, 6 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 8.0 μg/m3 (7) 6.9 μg/m3 (29) 29.0
 
Jan. 19, 2019, 5 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 7.0 μg/m3 (6) 6.8 μg/m3 (28) 28.0
 
Jan. 19, 2019, 4 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 8.0 μg/m3 (7) 7.4 μg/m3 (31) 31.0
 
Jan. 19, 2019, 3 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 6.0 μg/m3 (5) 8.6 μg/m3 (36) 36.0
 
Jan. 19, 2019, 2 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 9.0 μg/m3 (8) 8.9 μg/m3 (37) 37.0
 
Jan. 19, 2019, 1 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 7.0 μg/m3 (6) 6.5 μg/m3 (27) 27.0
 
Jan. 19, 2019, noon 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 6.0 μg/m3 (5) 5.1 μg/m3 (21) 21.0
 
Jan. 19, 2019, 11 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 6.0 μg/m3 (5) 6.6 μg/m3 (28) 28.0
 
Jan. 19, 2019, 10 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 6.0 μg/m3 (5) 3.3 μg/m3 (14) 22.0
 
Jan. 19, 2019, 9 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 22.0
 
Jan. 19, 2019, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 5.0 μg/m3 (5) 3.4 μg/m3 (14) 22.0
 
Jan. 19, 2019, 7 a.m. 0.0 ppb (0) 0.0 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) 4.4 μg/m3 (18) 22.0
 
Jan. 19, 2019, 6 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 4.0 μg/m3 (4) 4.1 μg/m3 (17) 23.0
 
Jan. 19, 2019, 5 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 6.0 μg/m3 (5) 2.3 μg/m3 (10) 24.0
 
Jan. 19, 2019, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 6.0 μg/m3 (5) 2.7 μg/m3 (11) 24.0
 
Jan. 19, 2019, 3 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 5.0 μg/m3 (5) 3.3 μg/m3 (14) 25.0
 
Jan. 19, 2019, 2 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 6.0 μg/m3 (5) 4.6 μg/m3 (19) 24.0
 
Jan. 19, 2019, 1 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 6.0 μg/m3 (5) 5.6 μg/m3 (23) 23.0
 
Jan. 19, 2019, midnight 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 5.0 μg/m3 (5) 4.6 μg/m3 (19) 25.0
 
Jan. 18, 2019, 11 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 5.0 μg/m3 (5) 3.6 μg/m3 (15) 26.0
 
Jan. 18, 2019, 10 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 6.0 μg/m3 (5) 3.8 μg/m3 (16) 26.0
 
Jan. 18, 2019, 9 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 5.0 μg/m3 (5) 3.0 μg/m3 (12) 27.0
 
Jan. 18, 2019, 8 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 6.0 μg/m3 (5) 1.8 μg/m3 (8) 27.0
 
Jan. 18, 2019, 7 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 6.0 μg/m3 (5) 3.9 μg/m3 (16) 27.0
 
Jan. 18, 2019, 6 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 7.0 μg/m3 (6) 5.2 μg/m3 (22) 26.0
 
Jan. 18, 2019, 5 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 6.0 μg/m3 (5) 1.9 μg/m3 (8) 25.0
 
Jan. 18, 2019, 4 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 6.0 μg/m3 (5) 0.5 μg/m3 (2) 25.0
 
Jan. 18, 2019, 3 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 6.0 μg/m3 (5) 3.5 μg/m3 (15) 25.0
 
Jan. 18, 2019, 2 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 7.0 μg/m3 (6) 3.6 μg/m3 (15) 25.0
 
Jan. 18, 2019, 1 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 8.0 μg/m3 (7) 1.4 μg/m3 (6) 26.0
 
Jan. 18, 2019, noon 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 6.0 μg/m3 (5) 3.5 μg/m3 (15) 27.0
 
Jan. 18, 2019, 11 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 6.0 μg/m3 (5) 2.5 μg/m3 (10) 28.0
 
Jan. 18, 2019, 10 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 5.0 μg/m3 (5) 1.9 μg/m3 (8) 28.0
 
Jan. 18, 2019, 9 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 5.0 μg/m3 (5) 4.2 μg/m3 (18) 28.0
 
Jan. 18, 2019, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 4.0 μg/m3 (4) 3.2 μg/m3 (13) 29.0
 
Jan. 18, 2019, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 38.0 ppb (29) N/A 5.0 μg/m3 (5) 0.7 μg/m3 (3) 29.0
 
Jan. 18, 2019, 6 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 3.0 μg/m3 (3) 2.0 μg/m3 (8) 29.0
 
Jan. 18, 2019, 5 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 38.0 ppb (29) N/A 4.0 μg/m3 (4) 1.6 μg/m3 (7) 29.0
 
Jan. 18, 2019, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 38.0 ppb (29) N/A 4.0 μg/m3 (4) 1.8 μg/m3 (8) 29.0
 
Jan. 18, 2019, 3 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 3.0 μg/m3 (3) 3.5 μg/m3 (15) 29.0
 
Jan. 18, 2019, 2 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 36.0 ppb (28) N/A 4.0 μg/m3 (4) 1.0 μg/m3 (4) 28.0
 
Jan. 18, 2019, 1 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 35.0 ppb (27) N/A 7.0 μg/m3 (6) 1.1 μg/m3 (5) 27.0
 
Jan. 18, 2019, midnight 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 34.0 ppb (26) N/A 8.0 μg/m3 (7) 2.0 μg/m3 (8) 26.0
 
Jan. 17, 2019, 11 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 35.0 ppb (27) N/A 6.0 μg/m3 (5) 4.4 μg/m3 (18) 27.0
 
Jan. 17, 2019, 10 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 28.0
 
Jan. 17, 2019, 9 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 6.0 μg/m3 (5) 3.0 μg/m3 (12) 28.0
 
Jan. 17, 2019, 8 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 28.0
 
Jan. 17, 2019, 7 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 5.0 μg/m3 (5) 4.2 μg/m3 (18) 26.0
 
Jan. 17, 2019, 6 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 31.0 ppb (24) N/A 4.0 μg/m3 (4) 6.8 μg/m3 (28) 28.0
 
Jan. 17, 2019, 5 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 3.0 ppb (4) 31.0 ppb (24) N/A 5.0 μg/m3 (5) 3.2 μg/m3 (13) 24.0
 
Jan. 17, 2019, 4 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 31.0 ppb (24) N/A 7.0 μg/m3 (6) 5.2 μg/m3 (22) 24.0
 
Jan. 17, 2019, 3 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 30.0 ppb (23) N/A 8.0 μg/m3 (7) 6.2 μg/m3 (26) 26.0
 
Jan. 17, 2019, 2 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 3.0 ppb (4) 29.0 ppb (22) N/A 8.0 μg/m3 (7) 5.7 μg/m3 (24) 24.0
 
Jan. 17, 2019, 1 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 3.0 ppb (4) 27.0 ppb (21) N/A 9.0 μg/m3 (8) 2.3 μg/m3 (10) 21.0
 
Jan. 17, 2019, noon 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 25.0 ppb (19) N/A 7.0 μg/m3 (6) 2.7 μg/m3 (11) 19.0
 
Jan. 17, 2019, 11 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 24.0 ppb (18) N/A 6.0 μg/m3 (5) 3.3 μg/m3 (14) 18.0
 
Jan. 17, 2019, 10 a.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 23.0 ppb (18) N/A 6.0 μg/m3 (5) 5.4 μg/m3 (23) 23.0
 
Jan. 17, 2019, 9 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 6.0 μg/m3 (5) 8.2 μg/m3 (34) 34.0
 
Jan. 17, 2019, 8 a.m. 0.1 ppb (0) 0.2 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 11.0 μg/m3 (10) 6.5 μg/m3 (27) 27.0
 
Jan. 17, 2019, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 23.0 ppb (18) N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 18.0
 
Jan. 17, 2019, 6 a.m. 0.3 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 24.0 ppb (18) N/A 13.0 μg/m3 (12) 5.6 μg/m3 (23) 23.0
 
Jan. 17, 2019, 5 a.m. 0.5 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 23.0 ppb (18) N/A 10.0 μg/m3 (9) 5.9 μg/m3 (25) 25.0
 
Jan. 17, 2019, 4 a.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 8.0 μg/m3 (7) 9.3 μg/m3 (39) 39.0
 
Jan. 17, 2019, 3 a.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 22.0 ppb (17) N/A 8.0 μg/m3 (7) 8.2 μg/m3 (34) 34.0
 
Jan. 17, 2019, 2 a.m. 0.5 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 24.0 ppb (18) N/A 11.0 μg/m3 (10) 8.4 μg/m3 (35) 35.0
 
Jan. 17, 2019, 1 a.m. 0.5 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 13.0 μg/m3 (12) 11.7 μg/m3 (49) 49.0
 
Jan. 17, 2019, midnight 0.5 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 14.0 μg/m3 (13) 10.6 μg/m3 (44) 44.0
 
Jan. 16, 2019, 11 p.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 12.0 μg/m3 (11) 11.6 μg/m3 (48) 48.0
 
Jan. 16, 2019, 10 p.m. 1.3 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 24.0 ppb (18) N/A 11.0 μg/m3 (10) 11.6 μg/m3 (48) 48.0
 
Jan. 16, 2019, 9 p.m. 1.4 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 12.0 μg/m3 (11) 6.7 μg/m3 (28) 28.0
 
Jan. 16, 2019, 8 p.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 26.0 ppb (20) N/A 10.0 μg/m3 (9) 3.4 μg/m3 (14) 20.0
 
Jan. 16, 2019, 7 p.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 27.0 ppb (21) N/A 7.0 μg/m3 (6) 5.9 μg/m3 (25) 25.0
 
Jan. 16, 2019, 6 p.m. 1.0 ppb (1) 0.1 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) 5.6 μg/m3 (23) 23.0
 
Jan. 16, 2019, 5 p.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 5.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
Jan. 16, 2019, 4 p.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 6.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
Jan. 16, 2019, 3 p.m. 0.7 ppb (1) 0.0 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) 5.1 μg/m3 (21) 21.0
 
Jan. 16, 2019, 2 p.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 5.0 μg/m3 (5) 4.5 μg/m3 (19) 22.0
 
Jan. 16, 2019, 1 p.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 5.0 μg/m3 (5) 3.6 μg/m3 (15) 22.0
 
Jan. 16, 2019, noon 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 4.0 μg/m3 (4) 2.9 μg/m3 (12) 24.0
 
Jan. 16, 2019, 11 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 4.0 μg/m3 (4) 3.0 μg/m3 (12) 25.0
 
Jan. 16, 2019, 10 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 3.0 μg/m3 (3) 4.2 μg/m3 (18) 25.0
 
Jan. 16, 2019, 9 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 3.0 μg/m3 (3) 2.8 μg/m3 (12) 26.0
 
Jan. 16, 2019, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 3.0 μg/m3 (3) 2.5 μg/m3 (10) 25.0
 
Jan. 16, 2019, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 3.0 μg/m3 (3) 2.8 μg/m3 (12) 23.0
 
Jan. 16, 2019, 6 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 4.0 μg/m3 (4) 2.9 μg/m3 (12) 25.0
 
Jan. 16, 2019, 5 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 4.0 μg/m3 (4) 3.4 μg/m3 (14) 24.0
 
Jan. 16, 2019, 4 a.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 5.0 μg/m3 (5) 3.8 μg/m3 (16) 22.0
 
Jan. 16, 2019, 3 a.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 5.0 μg/m3 (5) 2.4 μg/m3 (10) 22.0
 
Jan. 16, 2019, 2 a.m. 0.1 ppb (0) 0.0 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) 3.1 μg/m3 (13) 21.0
 
Jan. 16, 2019, 1 a.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 6.0 μg/m3 (5) 2.9 μg/m3 (12) 21.0
 
Jan. 16, 2019, midnight 0.5 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 6.0 μg/m3 (5) 1.8 μg/m3 (8) 19.0
 
Jan. 15, 2019, 11 p.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 7.0 μg/m3 (6) 1.1 μg/m3 (5) 21.0
 
Jan. 15, 2019, 10 p.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 8.0 μg/m3 (7) 0.1 μg/m3 (0) 20.0
 
Jan. 15, 2019, 9 p.m. 0.4 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 22.0 ppb (17) N/A 10.0 μg/m3 (9) 1.7 μg/m3 (7) 17.0
 
Jan. 15, 2019, 8 p.m. 0.5 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 21.0 ppb (16) N/A 8.0 μg/m3 (7) 4.3 μg/m3 (18) 18.0
 
Jan. 15, 2019, 7 p.m. 0.7 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 20.0 ppb (15) N/A 7.0 μg/m3 (6) 4.9 μg/m3 (20) 20.0
 
Jan. 15, 2019, 6 p.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 5.0 μg/m3 (5) 2.3 μg/m3 (10) 16.0
 
Jan. 15, 2019, 5 p.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 5.0 μg/m3 (5) 4.9 μg/m3 (20) 20.0
 
Jan. 15, 2019, 4 p.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 7.0 μg/m3 (6) 9.2 μg/m3 (38) 38.0
 
Jan. 15, 2019, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 7.0 μg/m3 (6) 9.2 μg/m3 (38) 38.0
 
Jan. 15, 2019, 2 p.m. 1.4 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 8.0 μg/m3 (7) 10.7 μg/m3 (45) 45.0
 
Jan. 15, 2019, 1 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 23.0 ppb (18) N/A 10.0 μg/m3 (9) 12.1 μg/m3 (50) 50.0
 
Jan. 15, 2019, noon 2.4 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 4.0 ppb (6) 20.0 ppb (15) N/A 11.0 μg/m3 (10) 9.1 μg/m3 (38) 38.0
 
Jan. 15, 2019, 11 a.m. 2.2 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 4.0 ppb (6) 19.0 ppb (15) N/A 11.0 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2019, 10 a.m. 1.6 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 19.0 ppb (15) N/A 7.0 μg/m3 (6) 8.6 μg/m3 (36) 36.0
 
Jan. 15, 2019, 9 a.m. 1.6 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 16.0 ppb (12) N/A 7.0 μg/m3 (6) 8.6 μg/m3 (36) 36.0
 
Jan. 15, 2019, 8 a.m. 2.1 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 13.0 ppb (10) N/A 6.0 μg/m3 (5) 9.8 μg/m3 (41) 41.0
 
Jan. 15, 2019, 7 a.m. 2.9 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 13.0 ppb (10) N/A 7.0 μg/m3 (6) 14.7 μg/m3 (56) 56.0
 
Jan. 15, 2019, 6 a.m. 4.4 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 10.0 ppb (8) N/A 10.0 μg/m3 (9) 21.9 μg/m3 (71) 71.0
 
Jan. 15, 2019, 5 a.m. 4.8 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 10.0 ppb (8) N/A 13.0 μg/m3 (12) 19.4 μg/m3 (66) 66.0
 
Jan. 15, 2019, 4 a.m. 4.6 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 10.0 ppb (8) N/A 14.0 μg/m3 (13) 17.5 μg/m3 (62) 62.0
 
Jan. 15, 2019, 3 a.m. 4.4 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 12.0 ppb (9) N/A 13.0 μg/m3 (12) 14.4 μg/m3 (55) 55.0
 
Jan. 15, 2019, 2 a.m. 4.1 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 13.0 ppb (10) N/A 14.0 μg/m3 (13) 21.5 μg/m3 (70) 70.0
 
Jan. 15, 2019, 1 a.m. 4.4 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 12.0 ppb (9) N/A 19.0 μg/m3 (17) 21.3 μg/m3 (70) 70.0
 
Jan. 15, 2019, midnight 4.2 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 13.0 ppb (10) N/A 21.0 μg/m3 (19) 18.3 μg/m3 (63) 63.0
 
Jan. 14, 2019, 11 p.m. 4.7 ppb (4) 0.1 ppb (0) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 14.0 ppb (11) N/A 21.0 μg/m3 (19) 23.1 μg/m3 (74) 74.0
 
Jan. 14, 2019, 10 p.m. 5.1 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 17.0 ppb (13) N/A 19.0 μg/m3 (17) 13.9 μg/m3 (54) 54.0
 
Jan. 14, 2019, 9 p.m. 3.6 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 22.0 ppb (17) N/A 13.0 μg/m3 (12) 11.9 μg/m3 (50) 50.0
 
Jan. 14, 2019, 8 p.m. 2.7 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 23.0 ppb (18) N/A 10.0 μg/m3 (9) 12.3 μg/m3 (51) 51.0
 
Jan. 14, 2019, 7 p.m. 2.1 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 24.0 ppb (18) N/A 9.0 μg/m3 (8) 7.8 μg/m3 (32) 32.0
 
Jan. 14, 2019, 6 p.m. 2.4 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 22.0 ppb (17) N/A 7.0 μg/m3 (6) 7.8 μg/m3 (32) 32.0
 
Jan. 14, 2019, 5 p.m. 2.7 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 20.0 ppb (15) N/A 10.0 μg/m3 (9) 11.9 μg/m3 (50) 50.0
 
Jan. 14, 2019, 4 p.m. 3.3 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 17.0 ppb (13) N/A 10.0 μg/m3 (9) 12.4 μg/m3 (51) 51.0
 
Jan. 14, 2019, 3 p.m. 1.5 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 17.0 ppb (13) N/A 9.0 μg/m3 (8) 11.3 μg/m3 (47) 47.0
 
Jan. 14, 2019, 2 p.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 16.0 ppb (12) N/A 9.0 μg/m3 (8) 12.0 μg/m3 (50) 50.0
 
Jan. 14, 2019, 1 p.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 17.0 ppb (13) N/A 8.0 μg/m3 (7) 12.9 μg/m3 (52) 52.0
 
Jan. 14, 2019, noon 1.3 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 19.0 ppb (15) N/A 9.0 μg/m3 (8) 7.5 μg/m3 (31) 31.0
 
Jan. 14, 2019, 11 a.m. 1.3 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 19.0 ppb (15) N/A 10.0 μg/m3 (9) 11.0 μg/m3 (46) 46.0
 
Jan. 14, 2019, 10 a.m. 1.4 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 20.0 ppb (15) N/A 10.0 μg/m3 (9) 12.9 μg/m3 (52) 52.0
 
Jan. 14, 2019, 9 a.m. 1.6 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 18.0 ppb (14) N/A 10.0 μg/m3 (9) 12.9 μg/m3 (52) 52.0
 
Jan. 14, 2019, 8 a.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 17.0 ppb (13) N/A 11.0 μg/m3 (10) 13.6 μg/m3 (53) 53.0
 
Jan. 14, 2019, 7 a.m. 2.1 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 16.0 ppb (12) N/A 11.0 μg/m3 (10) 14.4 μg/m3 (55) 55.0