AQSQID: 380650002

Site Name: Hannover

Location: Oliver Co, ND

Reporting: True, Located: True

Current AQI: 32.0

Oliver Co ND, US: 47.1858, -101.4281

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 22, 2019, 7 p.m. 1.4 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 7.0 μg/m3 (6) 7.1 μg/m3 (30) 32.0
 
July 22, 2019, 6 p.m. 1.8 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 16.0 μg/m3 (15) 6.9 μg/m3 (29) 31.0
 
July 22, 2019, 5 p.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 8.0 μg/m3 (7) 24.3 μg/m3 (76) 76.0
 
July 22, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A 1.0
 
July 22, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
July 22, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A N/A 22.0
 
July 22, 2019, 1 p.m. 3.3 ppb (3) 1.7 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 15.0 μg/m3 (14) 4.4 μg/m3 (18) 21.0
 
July 22, 2019, noon 3.1 ppb (3) 1.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 8.0 μg/m3 (7) 3.5 μg/m3 (15) 22.0
 
July 22, 2019, 11 a.m. 3.6 ppb (3) 1.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 7.0 μg/m3 (6) 3.1 μg/m3 (13) 22.0
 
July 22, 2019, 10 a.m. 3.7 ppb (3) 1.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 7.0 μg/m3 (6) 5.1 μg/m3 (21) 23.0
 
July 22, 2019, 9 a.m. 3.9 ppb (4) 1.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 8.0 μg/m3 (7) 3.8 μg/m3 (16) 22.0
 
July 22, 2019, 8 a.m. 3.4 ppb (3) 1.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 8.0 μg/m3 (7) 3.9 μg/m3 (16) 23.0
 
July 22, 2019, 7 a.m. 3.7 ppb (3) 1.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 4.0 μg/m3 (4) 7.2 μg/m3 (30) 30.0
 
July 22, 2019, 6 a.m. 4.0 ppb (4) 1.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 10.0 μg/m3 (9) 7.1 μg/m3 (30) 30.0
 
July 22, 2019, 5 a.m. 5.0 ppb (5) 1.7 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 11.0 μg/m3 (10) 7.3 μg/m3 (30) 30.0
 
July 22, 2019, 4 a.m. 4.1 ppb (4) 1.7 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 17.0 μg/m3 (15) 5.7 μg/m3 (24) 24.0
 
July 22, 2019, 3 a.m. 3.0 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 15.0 μg/m3 (14) 0.0 μg/m3 (0) 25.0
 
July 22, 2019, 2 a.m. 1.9 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 12.0 μg/m3 (11) 0.6 μg/m3 (2) 25.0
 
July 22, 2019, 1 a.m. 1.6 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 14.0 μg/m3 (13) 3.5 μg/m3 (15) 27.0
 
July 22, 2019, midnight 1.4 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 9.0 μg/m3 (8) 4.3 μg/m3 (18) 28.0
 
July 21, 2019, 11 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 25.0 μg/m3 (23) 3.7 μg/m3 (15) 28.0
 
July 21, 2019, 10 p.m. 4.0 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 37.0 ppb (28) N/A 35.0 μg/m3 (32) 4.5 μg/m3 (19) 32.0
 
July 21, 2019, 9 p.m. 2.3 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 40.0 ppb (31) N/A 46.0 μg/m3 (42) 3.8 μg/m3 (16) 42.0
 
July 21, 2019, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 82.0 μg/m3 (64) 5.9 μg/m3 (25) 64.0
 
July 21, 2019, 7 p.m. 0.8 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 12.0 μg/m3 (11) 2.3 μg/m3 (10) 30.0
 
July 21, 2019, 6 p.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 8.0 μg/m3 (7) 3.1 μg/m3 (13) 27.0
 
July 21, 2019, 5 p.m. 1.6 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 11.0 μg/m3 (10) 4.2 μg/m3 (18) 19.0
 
July 21, 2019, 4 p.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 13.0 μg/m3 (12) 4.2 μg/m3 (18) 18.0
 
July 21, 2019, 3 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 19.0 ppb (15) N/A 17.0 μg/m3 (15) 2.5 μg/m3 (10) 15.0
 
July 21, 2019, 2 p.m. 1.3 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 18.0 μg/m3 (16) 1.5 μg/m3 (6) 16.0
 
July 21, 2019, 1 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 22.0 ppb (17) N/A 22.0 μg/m3 (20) 1.6 μg/m3 (7) 20.0
 
July 21, 2019, noon 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 10.0 μg/m3 (9) 3.1 μg/m3 (13) 22.0
 
July 21, 2019, 11 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 15.0 μg/m3 (14) 3.3 μg/m3 (14) 22.0
 
July 21, 2019, 10 a.m. 0.5 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 11.0 μg/m3 (10) 2.5 μg/m3 (10) 22.0
 
July 21, 2019, 9 a.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 17.0 μg/m3 (15) 2.9 μg/m3 (12) 22.0
 
July 21, 2019, 8 a.m. 0.7 ppb (1) 0.0 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) 2.8 μg/m3 (12) 22.0
 
July 21, 2019, 7 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 12.0 μg/m3 (11) 2.5 μg/m3 (10) 24.0
 
July 21, 2019, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 19.0 μg/m3 (17) 3.0 μg/m3 (12) 25.0
 
July 21, 2019, 5 a.m. 1.3 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 23.0 μg/m3 (21) 2.2 μg/m3 (9) 26.0
 
July 21, 2019, 4 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 20.0 μg/m3 (18) 2.4 μg/m3 (10) 32.0
 
July 21, 2019, 3 a.m. 0.8 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 11.0 μg/m3 (10) 3.2 μg/m3 (13) 34.0
 
July 21, 2019, 2 a.m. 1.3 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 6.0 μg/m3 (5) 3.2 μg/m3 (13) 31.0
 
July 21, 2019, 1 a.m. 5.5 ppb (5) 1.3 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 14.0 μg/m3 (13) 4.5 μg/m3 (19) 30.0
 
July 21, 2019, midnight 2.0 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 14.0 μg/m3 (13) 5.8 μg/m3 (24) 35.0
 
July 20, 2019, 11 p.m. 3.0 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 17.0 μg/m3 (15) 9.3 μg/m3 (39) 39.0
 
July 20, 2019, 10 p.m. 3.5 ppb (3) 1.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 50.0 ppb (38) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 38.0
 
July 20, 2019, 9 p.m. 3.5 ppb (3) 1.6 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 48.0 ppb (37) N/A 17.0 μg/m3 (15) 3.9 μg/m3 (16) 37.0
 
July 20, 2019, 8 p.m. 3.0 ppb (3) 1.7 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 9.0 μg/m3 (8) 3.1 μg/m3 (13) 32.0
 
July 20, 2019, 7 p.m. 2.9 ppb (3) 1.7 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 3.0 μg/m3 (3) 3.8 μg/m3 (16) 29.0
 
July 20, 2019, 6 p.m. 3.1 ppb (3) 1.7 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 1.0 μg/m3 (1) 3.6 μg/m3 (15) 30.0
 
July 20, 2019, 5 p.m. 3.6 ppb (3) 1.8 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 12.0 μg/m3 (11) 3.3 μg/m3 (14) 29.0
 
July 20, 2019, 4 p.m. 6.6 ppb (6) 2.7 ppb (3) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 34.0 ppb (26) N/A 19.0 μg/m3 (17) 5.4 μg/m3 (23) 26.0
 
July 20, 2019, 3 p.m. 5.5 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 33.0 ppb (25) N/A 13.0 μg/m3 (12) 6.2 μg/m3 (26) 26.0
 
July 20, 2019, 2 p.m. 3.5 ppb (3) 1.7 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 14.0 μg/m3 (13) 4.6 μg/m3 (19) 27.0
 
July 20, 2019, 1 p.m. 3.6 ppb (3) 1.7 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 18.0 μg/m3 (16) 2.7 μg/m3 (11) 23.0
 
July 20, 2019, noon 3.4 ppb (3) 1.7 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 22.0 μg/m3 (20) 3.9 μg/m3 (16) 25.0
 
July 20, 2019, 11 a.m. 3.6 ppb (3) 1.7 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 12.0 μg/m3 (11) 5.3 μg/m3 (22) 26.0
 
July 20, 2019, 10 a.m. 4.7 ppb (4) 1.7 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 11.0 μg/m3 (10) 4.3 μg/m3 (18) 25.0
 
July 20, 2019, 9 a.m. 5.9 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 30.0 ppb (23) N/A 18.0 μg/m3 (16) 3.6 μg/m3 (15) 23.0
 
July 20, 2019, 8 a.m. 6.8 ppb (6) 1.7 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 21.0 μg/m3 (19) 4.5 μg/m3 (19) 23.0
 
July 20, 2019, 7 a.m. 8.1 ppb (8) 1.8 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 12.0 μg/m3 (11) 4.2 μg/m3 (18) 22.0
 
July 20, 2019, 6 a.m. 5.5 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 31.0 μg/m3 (28) 4.4 μg/m3 (18) 28.0
 
July 20, 2019, 5 a.m. 4.7 ppb (4) 1.7 ppb (2) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 41.0 ppb (32) N/A 8.0 μg/m3 (7) 5.8 μg/m3 (24) 32.0
 
July 20, 2019, 4 a.m. 5.0 ppb (5) 1.7 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 24.0 μg/m3 (22) 4.5 μg/m3 (19) 28.0
 
July 20, 2019, 3 a.m. 4.0 ppb (4) 1.8 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 17.0 μg/m3 (15) 3.2 μg/m3 (13) 33.0
 
July 20, 2019, 2 a.m. 4.2 ppb (4) 1.8 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 11.0 μg/m3 (10) 3.4 μg/m3 (14) 33.0
 
July 20, 2019, 1 a.m. 4.3 ppb (4) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 16.0 μg/m3 (15) N/A 34.0
 
July 20, 2019, midnight 3.7 ppb (3) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 47.0 ppb (36) N/A 29.0 μg/m3 (26) N/A 36.0
 
July 19, 2019, 11 p.m. 3.9 ppb (4) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 50.0 ppb (38) N/A 18.0 μg/m3 (16) 3.1 μg/m3 (13) 38.0
 
July 19, 2019, 10 p.m. 4.1 ppb (4) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 50.0 ppb (38) N/A 16.0 μg/m3 (15) 3.1 μg/m3 (13) 38.0
 
July 19, 2019, 9 p.m. 4.1 ppb (4) 2.1 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 17.0 μg/m3 (15) 2.1 μg/m3 (9) 38.0
 
July 19, 2019, 8 p.m. 4.3 ppb (4) 2.2 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 48.0 ppb (37) N/A 21.0 μg/m3 (19) 4.2 μg/m3 (18) 37.0
 
July 19, 2019, 7 p.m. 4.4 ppb (4) 2.2 ppb (2) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 47.0 ppb (36) N/A 11.0 μg/m3 (10) 5.6 μg/m3 (23) 36.0
 
July 19, 2019, 6 p.m. 4.6 ppb (4) 2.2 ppb (2) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 46.0 ppb (35) N/A 9.0 μg/m3 (8) 5.3 μg/m3 (22) 35.0
 
July 19, 2019, 5 p.m. 4.7 ppb (4) 2.3 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 7.0 μg/m3 (6) 6.8 μg/m3 (28) 32.0
 
July 19, 2019, 4 p.m. 4.9 ppb (5) 2.4 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 10.0 μg/m3 (9) 0.0 μg/m3 (0) 28.0
 
July 19, 2019, 3 p.m. 6.7 ppb (6) 3.1 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 14.0 μg/m3 (13) 1.4 μg/m3 (6) 22.0
 
July 19, 2019, 2 p.m. 7.9 ppb (7) 3.5 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 22.0 ppb (17) N/A 7.0 μg/m3 (6) 3.7 μg/m3 (15) 17.0
 
July 19, 2019, 1 p.m. 6.8 ppb (6) 2.7 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 19.0 ppb (15) N/A 11.0 μg/m3 (10) 2.3 μg/m3 (10) 15.0
 
July 19, 2019, noon 5.2 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 20.0 ppb (15) N/A 12.0 μg/m3 (11) 0.7 μg/m3 (3) 15.0
 
July 19, 2019, 11 a.m. 5.0 ppb (5) 1.9 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 8.0 μg/m3 (7) 3.2 μg/m3 (13) 16.0
 
July 19, 2019, 10 a.m. 4.3 ppb (4) 1.8 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 23.0 ppb (18) N/A 4.0 μg/m3 (4) 5.6 μg/m3 (23) 23.0
 
July 19, 2019, 9 a.m. 4.8 ppb (4) 1.9 ppb (2) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 25.0 ppb (19) N/A 7.0 μg/m3 (6) 5.8 μg/m3 (24) 24.0
 
July 19, 2019, 8 a.m. 3.9 ppb (4) 1.8 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 16.0 μg/m3 (15) 4.6 μg/m3 (19) 22.0
 
July 19, 2019, 7 a.m. 3.4 ppb (3) 1.8 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 7.0 μg/m3 (6) 4.0 μg/m3 (17) 22.0
 
July 19, 2019, 6 a.m. 3.9 ppb (4) 1.8 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 22.0 ppb (17) N/A 9.0 μg/m3 (8) 2.0 μg/m3 (8) 17.0
 
July 19, 2019, 5 a.m. 4.3 ppb (4) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 19.0 ppb (15) N/A 13.0 μg/m3 (12) 3.6 μg/m3 (15) 15.0
 
July 19, 2019, 4 a.m. 4.0 ppb (4) 1.8 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 23.0 ppb (18) N/A N/A 5.2 μg/m3 (22) 22.0
 
July 19, 2019, 3 a.m. 3.6 ppb (3) 1.8 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 108.0 μg/m3 (76) 5.3 μg/m3 (22) 76.0
 
July 19, 2019, 2 a.m. 3.1 ppb (3) 1.8 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 40.0 μg/m3 (36) 5.0 μg/m3 (21) 36.0
 
July 19, 2019, 1 a.m. 3.1 ppb (3) 1.9 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 17.0 μg/m3 (15) 7.5 μg/m3 (31) 31.0
 
July 19, 2019, midnight 3.1 ppb (3) 2.0 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 15.0 μg/m3 (14) 2.6 μg/m3 (11) 25.0
 
July 18, 2019, 11 p.m. 3.0 ppb (3) 1.9 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 14.0 μg/m3 (13) 1.7 μg/m3 (7) 26.0
 
July 18, 2019, 10 p.m. 3.1 ppb (3) 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 25.0
 
July 18, 2019, 9 p.m. 3.1 ppb (3) 2.0 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 11.0 μg/m3 (10) 3.3 μg/m3 (14) 25.0
 
July 18, 2019, 8 p.m. 3.2 ppb (3) 2.0 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 15.0 μg/m3 (14) 2.3 μg/m3 (10) 27.0
 
July 18, 2019, 7 p.m. 3.4 ppb (3) 2.1 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 12.0 μg/m3 (11) 3.9 μg/m3 (16) 28.0
 
July 18, 2019, 6 p.m. 4.2 ppb (4) 2.3 ppb (2) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 36.0 ppb (28) N/A 8.0 μg/m3 (7) 4.6 μg/m3 (19) 28.0
 
July 18, 2019, 5 p.m. 4.2 ppb (4) 2.2 ppb (2) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 40.0 ppb (31) N/A 12.0 μg/m3 (11) 4.2 μg/m3 (18) 31.0
 
July 18, 2019, 4 p.m. 3.6 ppb (3) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 15.0 μg/m3 (14) 2.3 μg/m3 (10) 30.0
 
July 18, 2019, 3 p.m. 3.8 ppb (4) 2.1 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 13.0 μg/m3 (12) 1.5 μg/m3 (6) 28.0
 
July 18, 2019, 2 p.m. 5.5 ppb (5) 2.6 ppb (2) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 30.0 ppb (23) N/A 17.0 μg/m3 (15) 1.4 μg/m3 (6) 23.0
 
July 18, 2019, 1 p.m. 4.6 ppb (4) 2.2 ppb (2) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 29.0 ppb (22) N/A 8.0 μg/m3 (7) 2.3 μg/m3 (10) 22.0
 
July 18, 2019, noon 3.7 ppb (3) 1.9 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 8.0 μg/m3 (7) 2.4 μg/m3 (10) 24.0
 
July 18, 2019, 11 a.m. 3.7 ppb (3) 1.9 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 12.0 μg/m3 (11) 0.7 μg/m3 (3) 25.0
 
July 18, 2019, 10 a.m. 3.6 ppb (3) 1.8 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 5.0 μg/m3 (5) 1.3 μg/m3 (5) 28.0
 
July 18, 2019, 9 a.m. 3.8 ppb (4) 1.8 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 5.0 μg/m3 (5) 4.3 μg/m3 (18) 29.0
 
July 18, 2019, 8 a.m. 3.9 ppb (4) 1.8 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 3.0 μg/m3 (3) 4.3 μg/m3 (18) 29.0
 
July 18, 2019, 7 a.m. 5.0 ppb (5) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 33.0 ppb (25) N/A -2.0 μg/m3 (0) 3.2 μg/m3 (13) 25.0
 
July 18, 2019, 6 a.m. 5.0 ppb (5) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 11.0 μg/m3 (10) 2.4 μg/m3 (10) 25.0
 
July 18, 2019, 5 a.m. 4.3 ppb (4) 1.9 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 16.0 μg/m3 (15) 3.2 μg/m3 (13) 27.0
 
July 18, 2019, 4 a.m. 4.1 ppb (4) 1.9 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 57.0 μg/m3 (51) 4.5 μg/m3 (19) 51.0
 
July 18, 2019, 3 a.m. 3.8 ppb (4) 1.9 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 35.0 ppb (27) N/A N/A 4.1 μg/m3 (17) 27.0
 
July 18, 2019, 2 a.m. 3.8 ppb (4) 1.9 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 6.0 μg/m3 (5) 0.9 μg/m3 (4) 30.0
 
July 18, 2019, 1 a.m. 4.6 ppb (4) 1.9 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 24.0 μg/m3 (22) 0.0 μg/m3 (0) 25.0
 
July 18, 2019, midnight 3.3 ppb (3) 1.9 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 4.0 μg/m3 (4) 1.5 μg/m3 (6) 31.0
 
July 17, 2019, 11 p.m. 3.5 ppb (3) 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) N/A 10.0 μg/m3 (9) 3.2 μg/m3 (13) 35.0
 
July 17, 2019, 10 p.m. 4.1 ppb (4) 2.1 ppb (2) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 48.0 ppb (37) N/A 7.0 μg/m3 (6) 4.4 μg/m3 (18) 37.0
 
July 17, 2019, 9 p.m. 5.2 ppb (5) 2.3 ppb (2) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 48.0 ppb (37) N/A 8.0 μg/m3 (7) 6.0 μg/m3 (25) 37.0
 
July 17, 2019, 8 p.m. 5.2 ppb (5) 2.3 ppb (2) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 49.0 ppb (38) N/A 8.0 μg/m3 (7) 4.7 μg/m3 (20) 38.0
 
July 17, 2019, 7 p.m. 5.0 ppb (5) 2.3 ppb (2) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 47.0 ppb (36) N/A 4.0 μg/m3 (4) 6.7 μg/m3 (28) 36.0
 
July 17, 2019, 6 p.m. 6.7 ppb (6) 2.9 ppb (3) N/A 4.0 ppb (4) N/A 4.0 ppb (6) 43.0 ppb (33) N/A 8.0 μg/m3 (7) 6.4 μg/m3 (27) 33.0
 
July 17, 2019, 5 p.m. 6.9 ppb (6) 3.0 ppb (3) N/A 4.0 ppb (4) N/A 4.0 ppb (6) 41.0 ppb (32) N/A 12.0 μg/m3 (11) 4.6 μg/m3 (19) 32.0
 
July 17, 2019, 4 p.m. 3.9 ppb (4) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 8.0 μg/m3 (7) 5.1 μg/m3 (21) 31.0
 
July 17, 2019, 3 p.m. 8.5 ppb (8) 3.7 ppb (3) N/A 5.0 ppb (5) N/A 6.0 ppb (9) 32.0 ppb (25) N/A 7.0 μg/m3 (6) 1.1 μg/m3 (5) 25.0
 
July 17, 2019, 2 p.m. 4.2 ppb (4) 2.2 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 4.0 μg/m3 (4) 2.8 μg/m3 (12) 23.0
 
July 17, 2019, 1 p.m. 4.2 ppb (4) 2.1 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 7.0 μg/m3 (6) 3.6 μg/m3 (15) 23.0
 
July 17, 2019, noon 4.3 ppb (4) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 9.0 μg/m3 (8) 3.1 μg/m3 (13) 22.0
 
July 17, 2019, 11 a.m. 4.2 ppb (4) 1.9 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 9.0 μg/m3 (8) 2.8 μg/m3 (12) 25.0
 
July 17, 2019, 10 a.m. 11.3 ppb (10) 1.9 ppb (2) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 9.0 μg/m3 (8) 2.0 μg/m3 (8) 19.0
 
July 17, 2019, 9 a.m. 4.1 ppb (4) 1.8 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 3.0 μg/m3 (3) 3.3 μg/m3 (14) 24.0
 
July 17, 2019, 8 a.m. 3.5 ppb (3) 1.8 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 7.0 μg/m3 (6) 3.6 μg/m3 (15) 25.0
 
July 17, 2019, 7 a.m. 3.3 ppb (3) 1.8 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 13.0 μg/m3 (12) 3.4 μg/m3 (14) 28.0
 
July 17, 2019, 6 a.m. 3.6 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 10.0 μg/m3 (9) 4.6 μg/m3 (19) 29.0
 
July 17, 2019, 5 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 6.0 μg/m3 (5) 1.6 μg/m3 (7) 28.0
 
July 17, 2019, 4 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (32) N/A 14.0 μg/m3 (13) 1.6 μg/m3 (7) 32.0
 
July 17, 2019, 3 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 49.0 μg/m3 (45) 4.8 μg/m3 (20) 45.0
 
July 17, 2019, 2 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 0.0 μg/m3 (0) 5.3 μg/m3 (22) 28.0
 
July 17, 2019, 1 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 13.0 μg/m3 (12) 3.1 μg/m3 (13) 28.0
 
July 17, 2019, midnight 0.9 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 14.0 μg/m3 (13) 4.4 μg/m3 (18) 32.0
 
July 16, 2019, 11 p.m. 2.2 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 6.0 μg/m3 (5) 6.8 μg/m3 (28) 34.0
 
July 16, 2019, 10 p.m. 5.2 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 5.0 μg/m3 (5) 3.7 μg/m3 (15) 32.0
 
July 16, 2019, 9 p.m. 14.8 ppb (14) 5.3 ppb (5) N/A 9.0 ppb (8) N/A 2.0 ppb (3) 36.0 ppb (28) N/A 5.0 μg/m3 (5) 2.8 μg/m3 (12) 28.0
 
July 16, 2019, 8 p.m. 1.1 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 8.0 μg/m3 (7) 2.7 μg/m3 (11) 31.0
 
July 16, 2019, 7 p.m. 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 26.0 μg/m3 (24) 2.8 μg/m3 (12) 29.0
 
July 16, 2019, 6 p.m. 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 29.0 μg/m3 (26) 4.5 μg/m3 (19) 34.0
 
July 16, 2019, 5 p.m. 7.3 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A 2.0 ppb (3) 40.0 ppb (31) N/A 22.0 μg/m3 (20) 4.8 μg/m3 (20) 31.0
 
July 16, 2019, 4 p.m. 8.2 ppb (8) 1.5 ppb (1) N/A 7.0 ppb (6) N/A 2.0 ppb (3) 41.0 ppb (32) N/A 19.0 μg/m3 (17) 5.0 μg/m3 (21) 32.0
 
July 16, 2019, 3 p.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 13.0 μg/m3 (12) 6.8 μg/m3 (28) 35.0
 
July 16, 2019, 2 p.m. 2.3 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 15.0 μg/m3 (14) 6.8 μg/m3 (28) 32.0
 
July 16, 2019, 1 p.m. 2.9 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 15.0 μg/m3 (14) 5.7 μg/m3 (24) 24.0
 
July 16, 2019, noon 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 22.0 μg/m3 (20) 8.3 μg/m3 (35) 35.0
 
July 16, 2019, 11 a.m. 1.3 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 17.0 μg/m3 (15) 3.5 μg/m3 (15) 28.0
 
July 16, 2019, 10 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 79.0 μg/m3 (62) 3.2 μg/m3 (13) 62.0
 
July 16, 2019, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 28.0 μg/m3 (25) 4.6 μg/m3 (19) 32.0
 
July 16, 2019, 8 a.m. 1.4 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 23.0 μg/m3 (21) 3.7 μg/m3 (15) 30.0
 
July 16, 2019, 7 a.m. 2.1 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 16.0 μg/m3 (15) 4.4 μg/m3 (18) 28.0
 
July 16, 2019, 6 a.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 17.0 μg/m3 (15) 6.2 μg/m3 (26) 31.0
 
July 16, 2019, 5 a.m. 1.3 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 19.0 μg/m3 (17) 4.5 μg/m3 (19) 34.0
 
July 16, 2019, 4 a.m. 1.1 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 20.0 μg/m3 (18) 3.8 μg/m3 (16) 35.0
 
July 16, 2019, 3 a.m. 2.1 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 26.0 μg/m3 (24) 2.0 μg/m3 (8) 35.0
 
July 16, 2019, 2 a.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 69.0 μg/m3 (57) 2.6 μg/m3 (11) 57.0
 
July 16, 2019, 1 a.m. 1.4 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 50.0 ppb (38) N/A 27.0 μg/m3 (25) 2.0 μg/m3 (8) 38.0
 
July 16, 2019, midnight 1.4 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 54.0 ppb (42) N/A 6.0 μg/m3 (5) 2.9 μg/m3 (12) 42.0
 
July 15, 2019, 11 p.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 55.0 ppb (42) N/A 17.0 μg/m3 (15) 5.3 μg/m3 (22) 42.0
 
July 15, 2019, 10 p.m. 2.1 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 57.0 ppb (44) N/A 21.0 μg/m3 (19) 5.7 μg/m3 (24) 44.0
 
July 15, 2019, 9 p.m. 2.3 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 57.0 ppb (44) N/A 31.0 μg/m3 (28) 6.2 μg/m3 (26) 44.0
 
July 15, 2019, 8 p.m. 2.4 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 54.0 ppb (42) N/A 56.0 μg/m3 (50) 4.3 μg/m3 (18) 50.0