ID: 645

AQSQID: 380650002

Site Name: Hannover

Added: April 21, 2020, 6:24 p.m.

Updated: Aug. 5, 2020, 1:42 a.m.

Location: Stanton (N Dakota Hwy 31), ND

Reporting: True, Located: True

Current AQI: 29.0

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
July 21, 2020, 11 p.m. 0.7 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 9.0 μg/m3 (8) 5.1 μg/m3 (21) 29.0
 
July 21, 2020, 10 p.m. 0.9 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 9.0 μg/m3 (8) 8.6 μg/m3 (36) 36.0
 
July 21, 2020, 9 p.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 39.0 ppb (30) N/A 13.0 μg/m3 (12) 8.9 μg/m3 (37) 37.0
 
July 21, 2020, 8 p.m. 1.4 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 3.0 ppb (4) 38.0 ppb (29) N/A 14.0 μg/m3 (13) 14.0 μg/m3 (54) 54.0
 
July 21, 2020, 7 p.m. 2.6 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 4.0 ppb (6) 34.0 ppb (26) N/A 20.0 μg/m3 (18) 18.8 μg/m3 (64) 64.0
 
July 21, 2020, 6 p.m. 3.3 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 30.0 ppb (23) N/A 19.0 μg/m3 (17) 12.3 μg/m3 (51) 51.0
 
July 21, 2020, 5 p.m. 2.4 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 28.0 ppb (22) N/A 12.0 μg/m3 (11) 19.1 μg/m3 (65) 65.0
 
July 21, 2020, 4 p.m. 4.3 ppb (4) 1.7 ppb (2) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 23.0 ppb (18) N/A 20.0 μg/m3 (18) 2.8 μg/m3 (12) 18.0
 
July 21, 2020, 3 p.m. 1.9 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 23.0 ppb (18) N/A 6.0 μg/m3 (5) 2.4 μg/m3 (10) 18.0
 
July 21, 2020, 2 p.m. 2.5 ppb (2) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 19.0 ppb (15) N/A 7.0 μg/m3 (6) 1.5 μg/m3 (6) 15.0
 
July 21, 2020, 1 p.m. 3.9 ppb (4) 1.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 15.0 ppb (12) N/A 9.0 μg/m3 (8) 0.3 μg/m3 (1) 12.0
 
July 21, 2020, noon 2.9 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 16.0 ppb (12) N/A 7.0 μg/m3 (6) 1.3 μg/m3 (5) 12.0
 
July 21, 2020, 11 a.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 19.0 ppb (15) N/A 4.0 μg/m3 (4) 4.5 μg/m3 (19) 19.0
 
July 21, 2020, 10 a.m. 1.6 ppb (1) 0.1 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
 
July 21, 2020, 9 a.m. 1.3 ppb (1) 0.1 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) -1.3 μg/m3 (0) 18.0
 
July 21, 2020, 8 a.m. 1.5 ppb (1) 0.1 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 (2) 18.0
 
July 21, 2020, 7 a.m. 1.5 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 4.0 μg/m3 (4) 1.8 μg/m3 (8) 19.0
 
July 21, 2020, 6 a.m. 1.5 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 4.0 μg/m3 (4) 0.0 μg/m3 (0) 19.0
 
July 21, 2020, 5 a.m. 1.6 ppb (1) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 23.0 ppb (18) N/A 4.0 μg/m3 (4) -0.4 μg/m3 (0) 18.0
 
July 21, 2020, 4 a.m. 1.6 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 24.0 ppb (18) N/A 4.0 μg/m3 (4) 1.9 μg/m3 (8) 18.0
 
July 21, 2020, 3 a.m. 1.1 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) 4.1 μg/m3 (17) 21.0
 
July 21, 2020, 2 a.m. 1.5 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 24.0 ppb (18) N/A 5.0 μg/m3 (5) 5.1 μg/m3 (21) 21.0
 
July 21, 2020, 1 a.m. 2.5 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 6.0 μg/m3 (5) 4.4 μg/m3 (18) 21.0
 
July 21, 2020, midnight 5.7 ppb (5) 1.1 ppb (1) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 22.0 ppb (17) N/A 7.0 μg/m3 (6) 2.5 μg/m3 (10) 17.0
 
July 20, 2020, 11 p.m. 4.7 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 26.0 ppb (20) N/A 7.0 μg/m3 (6) 0.7 μg/m3 (3) 20.0
 
July 20, 2020, 10 p.m. 5.5 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 24.0 ppb (18) N/A 7.0 μg/m3 (6) 2.3 μg/m3 (10) 18.0
 
July 20, 2020, 9 p.m. 4.3 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 22.0 ppb (17) N/A 6.0 μg/m3 (5) 3.9 μg/m3 (16) 17.0
 
July 20, 2020, 8 p.m. 3.1 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 20.0 ppb (15) N/A 5.0 μg/m3 (5) 4.0 μg/m3 (17) 17.0
 
July 20, 2020, 7 p.m. 2.4 ppb (2) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 6.0 μg/m3 (5) 6.2 μg/m3 (26) 26.0
 
July 20, 2020, 6 p.m. 6.1 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 16.0 ppb (12) N/A 9.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
July 20, 2020, 5 p.m. 3.2 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 16.0 ppb (12) N/A 6.0 μg/m3 (5) 4.9 μg/m3 (20) 20.0
 
July 20, 2020, 4 p.m. 3.6 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 11.0 ppb (8) N/A 12.0 μg/m3 (11) 6.2 μg/m3 (26) 26.0
 
July 20, 2020, 3 p.m. 1.7 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 15.0 ppb (12) N/A 17.0 μg/m3 (15) 2.2 μg/m3 (9) 15.0
 
July 20, 2020, 2 p.m. 1.5 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 7.0 μg/m3 (6) 1.7 μg/m3 (7) 16.0
 
July 20, 2020, 1 p.m. 1.8 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 16.0 ppb (12) N/A 10.0 μg/m3 (9) 1.2 μg/m3 (5) 12.0
 
July 20, 2020, noon 0.9 ppb (1) 0.1 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) 1.8 μg/m3 (8) 16.0
 
July 20, 2020, 11 a.m. 1.0 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 19.0 ppb (15) N/A 6.0 μg/m3 (5) 0.8 μg/m3 (3) 15.0
 
July 20, 2020, 10 a.m. 1.0 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 7.0 μg/m3 (6) -0.5 μg/m3 (0) 16.0
 
July 20, 2020, 9 a.m. 1.0 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 6.0 μg/m3 (5) 0.7 μg/m3 (3) 16.0
 
July 20, 2020, 8 a.m. 1.3 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) 1.2 μg/m3 (5) 15.0
 
July 20, 2020, 7 a.m. 0.8 ppb (1) 0.1 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) 1.3 μg/m3 (5) 20.0
 
July 20, 2020, 6 a.m. 0.4 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) 1.3 μg/m3 (5) 22.0
 
July 20, 2020, 5 a.m. 0.4 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) -1.1 μg/m3 (0) 22.0
 
July 20, 2020, 4 a.m. 0.5 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) 1.1 μg/m3 (5) 21.0
 
July 20, 2020, 3 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 7.0 μg/m3 (6) 3.0 μg/m3 (12) 21.0
 
July 20, 2020, 2 a.m. 0.8 ppb (1) 0.1 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) 0.1 μg/m3 (0) 21.0
 
July 20, 2020, 1 a.m. 0.8 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 9.0 μg/m3 (8) 0.0 μg/m3 (0) 20.0
 
July 20, 2020, midnight 0.5 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 5.0 μg/m3 (5) 1.2 μg/m3 (5) 23.0
 
July 19, 2020, 11 p.m. 0.5 ppb (0) 0.1 ppb (0) 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
 
July 19, 2020, 10 p.m. 0.6 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 6.0 μg/m3 (5) 0.0 μg/m3 (0) 25.0
 
July 19, 2020, 9 p.m. 0.7 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 5.0 μg/m3 (5) 2.0 μg/m3 (8) 25.0
 
July 19, 2020, 8 p.m. 0.7 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 3.0 μg/m3 (3) 2.2 μg/m3 (9) 24.0
 
July 19, 2020, 7 p.m. 1.4 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 33.0 ppb (25) N/A 16.0 μg/m3 (15) 1.4 μg/m3 (6) 25.0
 
July 19, 2020, 6 p.m. 1.9 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 3.0 ppb (4) 31.0 ppb (24) N/A 7.0 μg/m3 (6) 0.8 μg/m3 (3) 24.0
 
July 19, 2020, 5 p.m. 1.0 ppb (1) 0.3 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) -0.6 μg/m3 (0) 21.0
 
July 19, 2020, 4 p.m. 1.0 ppb (1) 0.3 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) 2.0 μg/m3 (8) 19.0
 
July 19, 2020, 3 p.m. 1.4 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 23.0 ppb (18) N/A 6.0 μg/m3 (5) 2.7 μg/m3 (11) 18.0
 
July 19, 2020, 2 p.m. 4.4 ppb (4) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 5.0 ppb (7) 18.0 ppb (14) N/A 8.0 μg/m3 (7) 2.1 μg/m3 (9) 14.0
 
July 19, 2020, 1 p.m. 2.7 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 18.0 ppb (14) N/A 7.0 μg/m3 (6) 1.7 μg/m3 (7) 14.0
 
July 19, 2020, noon 1.7 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 17.0 ppb (13) N/A 7.0 μg/m3 (6) 1.7 μg/m3 (7) 13.0
 
July 19, 2020, 11 a.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 17.0 ppb (13) N/A 7.0 μg/m3 (6) 2.3 μg/m3 (10) 13.0
 
July 19, 2020, 10 a.m. 1.8 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 18.0 ppb (14) N/A 7.0 μg/m3 (6) 1.0 μg/m3 (4) 14.0
 
July 19, 2020, 9 a.m. 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 6.0 μg/m3 (5) 1.7 μg/m3 (7) 16.0
 
July 19, 2020, 8 a.m. 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 23.0 ppb (18) N/A 4.0 μg/m3 (4) 1.3 μg/m3 (5) 18.0
 
July 19, 2020, 7 a.m. 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 23.0 ppb (18) N/A 2.0 μg/m3 (2) 1.8 μg/m3 (8) 18.0
 
July 19, 2020, 6 a.m. 1.3 ppb (1) 0.1 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) 1.9 μg/m3 (8) 16.0
 
July 19, 2020, 5 a.m. 1.4 ppb (1) 0.1 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) 2.5 μg/m3 (10) 17.0
 
July 19, 2020, 4 a.m. 1.5 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 6.0 μg/m3 (5) 3.9 μg/m3 (16) 20.0
 
July 19, 2020, 3 a.m. 1.2 ppb (1) 0.1 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) 3.8 μg/m3 (16) 21.0
 
July 19, 2020, 2 a.m. 1.3 ppb (1) 0.1 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) 4.7 μg/m3 (20) 20.0
 
July 19, 2020, 1 a.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 7.0 μg/m3 (6) 2.9 μg/m3 (12) 22.0
 
July 19, 2020, midnight 0.8 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 7.0 μg/m3 (6) 1.5 μg/m3 (6) 25.0
 
July 18, 2020, 11 p.m. 0.8 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 5.0 μg/m3 (5) 3.3 μg/m3 (14) 26.0
 
July 18, 2020, 10 p.m. 1.6 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 8.0 μg/m3 (7) 2.4 μg/m3 (10) 28.0
 
July 18, 2020, 9 p.m. 1.0 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 10.0 μg/m3 (9) 4.2 μg/m3 (18) 29.0
 
July 18, 2020, 8 p.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 37.0 ppb (28) N/A 9.0 μg/m3 (8) 7.4 μg/m3 (31) 31.0
 
July 18, 2020, 7 p.m. 2.3 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 35.0 ppb (27) N/A 14.0 μg/m3 (13) 2.7 μg/m3 (11) 27.0
 
July 18, 2020, 6 p.m. 1.1 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 28.0
 
July 18, 2020, 5 p.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 7.0 μg/m3 (6) 1.3 μg/m3 (5) 26.0
 
July 18, 2020, 4 p.m. 2.7 ppb (3) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 36.0 ppb (28) N/A 7.0 μg/m3 (6) -1.0 μg/m3 (0) 28.0
 
July 18, 2020, 3 p.m. 0.6 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 11.0 μg/m3 (10) 0.1 μg/m3 (0) 31.0
 
July 18, 2020, 2 p.m. 0.7 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 5.0 μg/m3 (5) 2.4 μg/m3 (10) 30.0
 
July 18, 2020, 1 p.m. 2.3 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 26.0 ppb (20) N/A 9.0 μg/m3 (8) 2.7 μg/m3 (11) 20.0
 
July 18, 2020, noon 2.3 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 18.0 ppb (14) N/A 12.0 μg/m3 (11) 0.8 μg/m3 (3) 14.0
 
July 18, 2020, 11 a.m. 1.7 ppb (2) 0.1 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) 2.2 μg/m3 (9) 12.0
 
July 18, 2020, 10 a.m. 2.1 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 20.0 ppb (15) N/A 12.0 μg/m3 (11) 3.5 μg/m3 (15) 15.0
 
July 18, 2020, 9 a.m. 2.1 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 13.0 μg/m3 (12) 3.8 μg/m3 (16) 22.0
 
July 18, 2020, 8 a.m. 2.2 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 9.0 μg/m3 (8) 5.1 μg/m3 (21) 23.0
 
July 18, 2020, 7 a.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 12.0 μg/m3 (11) 5.0 μg/m3 (21) 24.0
 
July 18, 2020, 6 a.m. 1.5 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 14.0 μg/m3 (13) 4.6 μg/m3 (19) 25.0
 
July 18, 2020, 5 a.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 19.0 μg/m3 (17) 5.5 μg/m3 (23) 28.0
 
July 18, 2020, 4 a.m. 1.6 ppb (1) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 20.0 μg/m3 (18) 3.9 μg/m3 (16) 22.0
 
July 18, 2020, 3 a.m. 1.6 ppb (1) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 24.0 μg/m3 (22) 4.9 μg/m3 (20) 22.0
 
July 18, 2020, 2 a.m. 1.4 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) N/A 25.0 μg/m3 (23) 3.9 μg/m3 (16) 25.0
 
July 18, 2020, 1 a.m. 1.2 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 20.0 μg/m3 (18) 3.9 μg/m3 (16) 32.0
 
July 18, 2020, midnight 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 22.0 μg/m3 (20) 5.0 μg/m3 (21) 38.0
 
July 17, 2020, 11 p.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 51.0 ppb (39) N/A 26.0 μg/m3 (24) 3.2 μg/m3 (13) 39.0
 
July 17, 2020, 10 p.m. 1.0 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 50.0 ppb (38) N/A 18.0 μg/m3 (16) 3.3 μg/m3 (14) 38.0
 
July 17, 2020, 9 p.m. 1.1 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 18.0 μg/m3 (16) 3.0 μg/m3 (12) 38.0
 
July 17, 2020, 8 p.m. 1.1 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 47.0 ppb (36) N/A 18.0 μg/m3 (16) 2.3 μg/m3 (10) 36.0
 
July 17, 2020, 7 p.m. 1.0 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 18.0 μg/m3 (16) 3.3 μg/m3 (14) 35.0
 
July 17, 2020, 6 p.m. 1.0 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 18.0 μg/m3 (16) 5.6 μg/m3 (23) 34.0
 
July 17, 2020, 5 p.m. 1.3 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 25.0 μg/m3 (23) 5.7 μg/m3 (24) 32.0
 
July 17, 2020, 4 p.m. 1.5 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 22.0 μg/m3 (20) 4.2 μg/m3 (18) 30.0
 
July 17, 2020, 3 p.m. 1.4 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 25.0 μg/m3 (23) 3.2 μg/m3 (13) 29.0
 
July 17, 2020, 2 p.m. 1.4 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 37.0 μg/m3 (34) 1.2 μg/m3 (5) 34.0
 
July 17, 2020, 1 p.m. 2.1 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 19.0 μg/m3 (17) 0.2 μg/m3 (1) 24.0
 
July 17, 2020, noon 3.7 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 17.0 μg/m3 (15) -0.9 μg/m3 (0) 19.0
 
July 17, 2020, 11 a.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 9.0 μg/m3 (8) 1.8 μg/m3 (8) 21.0
 
July 17, 2020, 10 a.m. 1.2 ppb (1) 0.1 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) 1.7 μg/m3 (7) 22.0
 
July 17, 2020, 9 a.m. 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 9.0 μg/m3 (8) -1.1 μg/m3 (0) 23.0
 
July 17, 2020, 8 a.m. 1.1 ppb (1) 0.1 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) 1.5 μg/m3 (6) 22.0
 
July 17, 2020, 7 a.m. 1.2 ppb (1) 0.1 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) 4.1 μg/m3 (17) 22.0
 
July 17, 2020, 6 a.m. 2.1 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 14.0 μg/m3 (13) 5.9 μg/m3 (25) 25.0
 
July 17, 2020, 5 a.m. 3.1 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 18.0 μg/m3 (16) 6.9 μg/m3 (29) 29.0
 
July 17, 2020, 4 a.m. 5.5 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 23.0 ppb (18) N/A 35.0 μg/m3 (32) 4.5 μg/m3 (19) 32.0
 
July 17, 2020, 3 a.m. 3.2 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 27.0 μg/m3 (25) 4.1 μg/m3 (17) 25.0
 
July 17, 2020, 2 a.m. 2.3 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 22.0 μg/m3 (20) 4.7 μg/m3 (20) 27.0
 
July 17, 2020, 1 a.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 39.0 ppb (30) N/A 19.0 μg/m3 (17) 2.0 μg/m3 (8) 30.0
 
July 17, 2020, midnight 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 43.0 ppb (33) N/A 16.0 μg/m3 (15) 0.0 μg/m3 (0) 33.0
 
July 16, 2020, 11 p.m. 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 3.0 ppb (4) 43.0 ppb (33) N/A 14.0 μg/m3 (13) 2.2 μg/m3 (9) 33.0
 
July 16, 2020, 10 p.m. 1.0 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 43.0 ppb (33) N/A 15.0 μg/m3 (14) 2.9 μg/m3 (12) 33.0
 
July 16, 2020, 9 p.m. 0.9 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 16.0 μg/m3 (15) 2.9 μg/m3 (12) 33.0
 
July 16, 2020, 8 p.m. 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 19.0 μg/m3 (17) 3.4 μg/m3 (14) 33.0
 
July 16, 2020, 7 p.m. 0.8 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 15.0 μg/m3 (14) 1.7 μg/m3 (7) 30.0
 
July 16, 2020, 6 p.m. 0.6 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 12.0 μg/m3 (11) 2.5 μg/m3 (10) 28.0
 
July 16, 2020, 5 p.m. 0.9 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 14.0 μg/m3 (13) 3.4 μg/m3 (14) 28.0
 
July 16, 2020, 4 p.m. 2.0 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 3.0 ppb (4) 33.0 ppb (25) N/A 16.0 μg/m3 (15) 3.2 μg/m3 (13) 25.0
 
July 16, 2020, 3 p.m. 1.4 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 19.0 μg/m3 (17) 4.7 μg/m3 (20) 25.0
 
July 16, 2020, 2 p.m. 1.9 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 19.0 μg/m3 (17) 4.4 μg/m3 (18) 23.0
 
July 16, 2020, 1 p.m. 2.2 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 12.0 μg/m3 (11) 3.8 μg/m3 (16) 21.0
 
July 16, 2020, noon 2.3 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 13.0 μg/m3 (12) 4.5 μg/m3 (19) 19.0
 
July 16, 2020, 11 a.m. 2.2 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 12.0 μg/m3 (11) 4.1 μg/m3 (17) 20.0
 
July 16, 2020, 10 a.m. 2.7 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 10.0 μg/m3 (9) 2.6 μg/m3 (11) 19.0
 
July 16, 2020, 9 a.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 11.0 μg/m3 (10) 1.5 μg/m3 (6) 20.0
 
July 16, 2020, 8 a.m. 1.6 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 14.0 μg/m3 (13) 0.3 μg/m3 (1) 21.0
 
July 16, 2020, 7 a.m. 1.1 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 11.0 μg/m3 (10) 0.9 μg/m3 (4) 24.0
 
July 16, 2020, 6 a.m. 2.2 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 15.0 μg/m3 (14) 1.2 μg/m3 (5) 22.0
 
July 16, 2020, 5 a.m. 1.6 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 15.0 μg/m3 (14) 4.0 μg/m3 (17) 22.0
 
July 16, 2020, 4 a.m. 2.5 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 17.0 μg/m3 (15) 5.6 μg/m3 (23) 23.0
 
July 16, 2020, 3 a.m. 2.6 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 20.0 μg/m3 (18) 3.3 μg/m3 (14) 19.0
 
July 16, 2020, 2 a.m. 3.1 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 23.0 ppb (18) N/A 16.0 μg/m3 (15) 4.0 μg/m3 (17) 18.0
 
July 16, 2020, 1 a.m. 2.5 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 26.0 μg/m3 (24) 3.9 μg/m3 (16) 24.0
 
July 16, 2020, midnight 1.7 ppb (2) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 24.0 μg/m3 (22) 0.8 μg/m3 (3) 24.0
 
July 15, 2020, 11 p.m. 0.7 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 18.0 μg/m3 (16) -1.3 μg/m3 (0) 28.0
 
July 15, 2020, 10 p.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 9.0 μg/m3 (8) 0.1 μg/m3 (0) 30.0
 
July 15, 2020, 9 p.m. 0.4 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 7.0 μg/m3 (6) 1.6 μg/m3 (7) 30.0
 
July 15, 2020, 8 p.m. 0.7 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 39.0 ppb (30) N/A 8.0 μg/m3 (7) -0.2 μg/m3 (0) 30.0
 
July 15, 2020, 7 p.m. 1.3 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 39.0 ppb (30) N/A 7.0 μg/m3 (6) 1.4 μg/m3 (6) 30.0
 
July 15, 2020, 6 p.m. 0.9 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 37.0 ppb (28) N/A 8.0 μg/m3 (7) 3.3 μg/m3 (14) 28.0
 
July 15, 2020, 5 p.m. 0.5 ppb (0) 0.1 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) 1.8 μg/m3 (8) 26.0
 
July 15, 2020, 4 p.m. 3.2 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A 5.0 ppb (7) 30.0 ppb (23) N/A 5.0 μg/m3 (5) 2.8 μg/m3 (12) 23.0
 
July 15, 2020, 3 p.m. 1.0 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 5.0 μg/m3 (5) 2.3 μg/m3 (10) 24.0
 
July 15, 2020, 2 p.m. 4.4 ppb (4) 1.6 ppb (1) N/A 3.0 ppb (3) N/A 6.0 ppb (9) 25.0 ppb (19) N/A 5.0 μg/m3 (5) 1.2 μg/m3 (5) 19.0
 
July 15, 2020, 1 p.m. 1.7 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 27.0 ppb (21) N/A 11.0 μg/m3 (10) 1.1 μg/m3 (5) 21.0
 
July 15, 2020, noon 1.8 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 26.0 ppb (20) N/A 11.0 μg/m3 (10) 0.8 μg/m3 (3) 20.0
 
July 15, 2020, 11 a.m. 1.9 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 24.0 ppb (18) N/A 8.0 μg/m3 (7) 0.1 μg/m3 (0) 18.0
 
July 15, 2020, 10 a.m. 1.8 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 7.0 μg/m3 (6) 2.0 μg/m3 (8) 21.0
 
July 15, 2020, 9 a.m. 1.3 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 6.0 μg/m3 (5) 4.6 μg/m3 (19) 23.0
 
July 15, 2020, 8 a.m. 1.2 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 33.0 ppb (25) N/A 4.0 μg/m3 (4) 1.4 μg/m3 (6) 25.0
 
July 15, 2020, 7 a.m. 1.6 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 7.0 μg/m3 (6) 0.2 μg/m3 (1) 22.0
 
July 15, 2020, 6 a.m. 1.6 ppb (1) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 9.0 μg/m3 (8) 1.4 μg/m3 (6) 22.0
 
July 15, 2020, 5 a.m. 1.6 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 11.0 μg/m3 (10) 0.8 μg/m3 (3) 22.0
 
July 15, 2020, 4 a.m. 1.5 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 10.0 μg/m3 (9) 0.9 μg/m3 (4) 24.0
 
July 15, 2020, 3 a.m. 1.4 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) N/A 11.0 μg/m3 (10) 1.8 μg/m3 (8) 25.0
 
July 15, 2020, 2 a.m. 2.1 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 8.0 μg/m3 (7) 1.2 μg/m3 (5) 21.0
 
July 15, 2020, 1 a.m. 2.0 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 16.0 μg/m3 (15) 0.4 μg/m3 (2) 22.0
 
July 15, 2020, midnight 0.7 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (28) N/A 11.0 μg/m3 (10) 2.2 μg/m3 (9) 28.0