ID: 645

AQSQID: 380650002

Site Name: Hannover

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

Updated: July 4, 2020, 1:34 a.m.

Location: Stanton (N Dakota Hwy 31), ND

Reporting: True, Located: True

Current AQI: 39.0

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
June 26, 2020, 10 p.m. 1.4 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 56.0 ppb (43) N/A 13.0 μg/m3 (12) 2.3 μg/m3 (10) 43.0
 
June 26, 2020, 9 p.m. 1.4 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 55.0 ppb (42) N/A 12.0 μg/m3 (11) 2.0 μg/m3 (8) 42.0
 
June 26, 2020, 8 p.m. 1.4 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 53.0 ppb (41) N/A 15.0 μg/m3 (14) 3.5 μg/m3 (15) 41.0
 
June 26, 2020, 7 p.m. 1.3 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 51.0 ppb (39) N/A 1.0 μg/m3 (1) 2.8 μg/m3 (12) 39.0
 
June 26, 2020, 6 p.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 50.0 ppb (38) N/A 9.0 μg/m3 (8) 3.9 μg/m3 (16) 38.0
 
June 26, 2020, 5 p.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 47.0 ppb (36) N/A 9.0 μg/m3 (8) 5.5 μg/m3 (23) 36.0
 
June 26, 2020, 4 p.m. 2.0 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 45.0 ppb (35) N/A 5.0 μg/m3 (5) 6.0 μg/m3 (25) 35.0
 
June 26, 2020, 3 p.m. 4.7 ppb (4) 1.2 ppb (1) N/A 3.0 ppb (3) N/A 4.0 ppb (6) 40.0 ppb (31) N/A 12.0 μg/m3 (11) 5.1 μg/m3 (21) 31.0
 
June 26, 2020, 2 p.m. 3.0 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 12.0 μg/m3 (11) 5.5 μg/m3 (23) 28.0
 
June 26, 2020, 1 p.m. 3.5 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 13.0 μg/m3 (12) 4.5 μg/m3 (19) 24.0
 
June 26, 2020, noon 3.8 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 12.0 μg/m3 (11) 5.5 μg/m3 (23) 23.0
 
June 26, 2020, 11 a.m. 3.7 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 9.0 μg/m3 (8) 3.3 μg/m3 (14) 21.0
 
June 26, 2020, 10 a.m. 3.0 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 7.0 μg/m3 (6) 2.2 μg/m3 (9) 20.0
 
June 26, 2020, 9 a.m. 2.5 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 28.0 ppb (22) N/A 8.0 μg/m3 (7) 3.4 μg/m3 (14) 22.0
 
June 26, 2020, 8 a.m. 3.5 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 25.0 ppb (19) N/A 9.0 μg/m3 (8) 6.7 μg/m3 (28) 28.0
 
June 26, 2020, 7 a.m. 4.7 ppb (4) 0.1 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 24.0 ppb (18) N/A 7.0 μg/m3 (6) 4.5 μg/m3 (19) 19.0
 
June 26, 2020, 6 a.m. 4.4 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 10.0 μg/m3 (9) 1.7 μg/m3 (7) 20.0
 
June 26, 2020, 5 a.m. 4.1 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 30.0 ppb (23) N/A 13.0 μg/m3 (12) 3.4 μg/m3 (14) 23.0
 
June 26, 2020, 4 a.m. 3.4 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 11.0 μg/m3 (10) 4.9 μg/m3 (20) 27.0
 
June 26, 2020, 3 a.m. 3.0 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 18.0 μg/m3 (16) 3.9 μg/m3 (16) 29.0
 
June 26, 2020, 2 a.m. 2.2 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 24.0 μg/m3 (22) 3.5 μg/m3 (15) 33.0
 
June 26, 2020, 1 a.m. 1.6 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 21.0 μg/m3 (19) 4.0 μg/m3 (17) 35.0
 
June 26, 2020, midnight 1.7 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 44.0 ppb (34) N/A 12.0 μg/m3 (11) 3.4 μg/m3 (14) 34.0
 
June 25, 2020, 11 p.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 17.0 μg/m3 (15) 5.8 μg/m3 (24) 34.0
 
June 25, 2020, 10 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 7.0 μg/m3 (6) 2.0 μg/m3 (8) 33.0
 
June 25, 2020, 9 p.m. 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 45.0 ppb (35) N/A -2.0 μg/m3 (0) 5.0 μg/m3 (21) 35.0
 
June 25, 2020, 8 p.m. 2.2 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 11.0 μg/m3 (10) 6.0 μg/m3 (25) 35.0
 
June 25, 2020, 7 p.m. 2.3 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 16.0 μg/m3 (15) 2.8 μg/m3 (12) 32.0
 
June 25, 2020, 6 p.m. 3.1 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 17.0 μg/m3 (15) 2.7 μg/m3 (11) 25.0
 
June 25, 2020, 5 p.m. 2.8 ppb (3) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 30.0 ppb (23) N/A 23.0 μg/m3 (21) 6.3 μg/m3 (26) 26.0
 
June 25, 2020, 4 p.m. 2.6 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 22.0 μg/m3 (20) 7.8 μg/m3 (32) 32.0
 
June 25, 2020, 3 p.m. 3.3 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 31.0 ppb (24) N/A 16.0 μg/m3 (15) 3.6 μg/m3 (15) 24.0
 
June 25, 2020, 2 p.m. 3.1 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 18.0 μg/m3 (16) 3.5 μg/m3 (15) 22.0
 
June 25, 2020, 1 p.m. 3.2 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 20.0 μg/m3 (18) 4.6 μg/m3 (19) 22.0
 
June 25, 2020, noon 3.4 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 17.0 μg/m3 (15) 4.5 μg/m3 (19) 22.0
 
June 25, 2020, 11 a.m. 3.8 ppb (4) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 9.0 μg/m3 (8) 4.4 μg/m3 (18) 22.0
 
June 25, 2020, 10 a.m. 2.1 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 10.0 μg/m3 (9) 5.1 μg/m3 (21) 25.0
 
June 25, 2020, 9 a.m. 2.5 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 12.0 μg/m3 (11) 4.3 μg/m3 (18) 25.0
 
June 25, 2020, 8 a.m. 2.6 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 10.0 μg/m3 (9) 4.7 μg/m3 (20) 25.0
 
June 25, 2020, 7 a.m. 2.9 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 11.0 μg/m3 (10) 4.5 μg/m3 (19) 25.0
 
June 25, 2020, 6 a.m. 2.6 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 12.0 μg/m3 (11) 1.1 μg/m3 (5) 26.0
 
June 25, 2020, 5 a.m. 3.7 ppb (3) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 12.0 μg/m3 (11) 0.8 μg/m3 (3) 26.0
 
June 25, 2020, 4 a.m. 4.0 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 17.0 μg/m3 (15) 1.8 μg/m3 (8) 28.0
 
June 25, 2020, 3 a.m. 3.2 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 23.0 μg/m3 (21) 2.2 μg/m3 (9) 29.0
 
June 25, 2020, 2 a.m. 2.7 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 35.0 μg/m3 (32) 3.0 μg/m3 (12) 32.0
 
June 25, 2020, 1 a.m. 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 29.0 μg/m3 (26) 4.1 μg/m3 (17) 33.0
 
June 25, 2020, midnight 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 25.0 μg/m3 (23) 5.1 μg/m3 (21) 32.0
 
June 24, 2020, 11 p.m. 1.8 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 19.0 μg/m3 (17) 6.0 μg/m3 (25) 32.0
 
June 24, 2020, 10 p.m. 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 12.0 μg/m3 (11) 5.1 μg/m3 (21) 35.0
 
June 24, 2020, 9 p.m. 0.9 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 12.0 μg/m3 (11) 2.8 μg/m3 (12) 35.0
 
June 24, 2020, 8 p.m. 1.0 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 7.0 μg/m3 (6) 3.9 μg/m3 (16) 35.0
 
June 24, 2020, 7 p.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 47.0 ppb (36) N/A 9.0 μg/m3 (8) 5.4 μg/m3 (23) 36.0
 
June 24, 2020, 6 p.m. 1.2 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 47.0 ppb (36) N/A 8.0 μg/m3 (7) 2.6 μg/m3 (11) 36.0
 
June 24, 2020, 5 p.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 12.0 μg/m3 (11) 3.0 μg/m3 (12) 35.0
 
June 24, 2020, 4 p.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 14.0 μg/m3 (13) 4.3 μg/m3 (18) 35.0
 
June 24, 2020, 3 p.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 11.0 μg/m3 (10) 4.8 μg/m3 (20) 33.0
 
June 24, 2020, 2 p.m. 1.7 ppb (2) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 10.0 μg/m3 (9) 5.2 μg/m3 (22) 33.0
 
June 24, 2020, 1 p.m. 2.2 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 10.0 μg/m3 (9) 4.6 μg/m3 (19) 32.0
 
June 24, 2020, noon 3.2 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 8.0 μg/m3 (7) 3.2 μg/m3 (13) 27.0
 
June 24, 2020, 11 a.m. 3.7 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 9.0 μg/m3 (8) 2.2 μg/m3 (9) 24.0
 
June 24, 2020, 10 a.m. 3.0 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 16.0 μg/m3 (15) 3.3 μg/m3 (14) 26.0
 
June 24, 2020, 9 a.m. 3.5 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 16.0 μg/m3 (15) 4.9 μg/m3 (20) 27.0
 
June 24, 2020, 8 a.m. 4.1 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 35.0 ppb (27) N/A 26.0 μg/m3 (24) 5.1 μg/m3 (21) 27.0
 
June 24, 2020, 7 a.m. 8.4 ppb (8) 0.1 ppb (0) N/A 8.0 ppb (7) N/A 2.0 ppb (3) 29.0 ppb (22) N/A 37.0 μg/m3 (34) 3.9 μg/m3 (16) 34.0
 
June 24, 2020, 6 a.m. 13.5 ppb (12) 0.1 ppb (0) N/A 13.0 ppb (12) N/A 2.0 ppb (3) 25.0 ppb (19) N/A 45.0 μg/m3 (41) 2.9 μg/m3 (12) 41.0
 
June 24, 2020, 5 a.m. 6.8 ppb (6) 0.1 ppb (0) N/A 7.0 ppb (6) N/A 2.0 ppb (3) 35.0 ppb (27) N/A 26.0 μg/m3 (24) 3.4 μg/m3 (14) 27.0
 
June 24, 2020, 4 a.m. 3.6 ppb (3) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 41.0 ppb (32) N/A 19.0 μg/m3 (17) 4.5 μg/m3 (19) 32.0
 
June 24, 2020, 3 a.m. 3.0 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 44.0 ppb (34) N/A 18.0 μg/m3 (16) 4.5 μg/m3 (19) 34.0
 
June 24, 2020, 2 a.m. 1.9 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 48.0 ppb (37) N/A 14.0 μg/m3 (13) 3.5 μg/m3 (15) 37.0
 
June 24, 2020, 1 a.m. 4.9 ppb (5) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 17.0 μg/m3 (15) 3.3 μg/m3 (14) 34.0
 
June 24, 2020, midnight 2.5 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 25.0 μg/m3 (23) 3.9 μg/m3 (16) 38.0
 
June 23, 2020, 11 p.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 51.0 ppb (39) N/A 17.0 μg/m3 (15) 3.4 μg/m3 (14) 39.0
 
June 23, 2020, 10 p.m. 1.2 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 51.0 ppb (39) N/A 24.0 μg/m3 (22) 2.6 μg/m3 (11) 39.0
 
June 23, 2020, 9 p.m. 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 53.0 ppb (41) N/A 17.0 μg/m3 (15) 4.4 μg/m3 (18) 41.0
 
June 23, 2020, 8 p.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 54.0 ppb (42) N/A 16.0 μg/m3 (15) 7.8 μg/m3 (32) 42.0
 
June 23, 2020, 7 p.m. 2.0 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 51.0 ppb (39) N/A 18.0 μg/m3 (16) 8.3 μg/m3 (35) 39.0
 
June 23, 2020, 6 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A 17.0 μg/m3 (15) 4.9 μg/m3 (20) 20.0
 
June 23, 2020, 5 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A 14.0 μg/m3 (13) N/A 13.0
 
June 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A N/A 32.0
 
June 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A N/A 28.0
 
June 23, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 11.0 μg/m3 (10) 3.4 μg/m3 (14) 25.0
 
June 23, 2020, 1 p.m. 2.1 ppb (2) 0.4 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) 2.9 μg/m3 (12) 23.0
 
June 23, 2020, noon 2.3 ppb (2) 0.3 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) 1.7 μg/m3 (7) 20.0
 
June 23, 2020, 11 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 9.0 μg/m3 (8) 2.5 μg/m3 (10) 19.0
 
June 23, 2020, 10 a.m. 2.5 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 20.0
 
June 23, 2020, 9 a.m. 2.3 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) 2.6 μg/m3 (11) 20.0
 
June 23, 2020, 8 a.m. 2.1 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 11.0 μg/m3 (10) 4.2 μg/m3 (18) 21.0
 
June 23, 2020, 7 a.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 10.0 μg/m3 (9) 3.9 μg/m3 (16) 22.0
 
June 23, 2020, 6 a.m. 2.7 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 9.0 μg/m3 (8) 2.3 μg/m3 (10) 21.0
 
June 23, 2020, 5 a.m. 2.7 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 11.0 μg/m3 (10) 2.8 μg/m3 (12) 21.0
 
June 23, 2020, 4 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 12.0 μg/m3 (11) 6.9 μg/m3 (29) 29.0
 
June 23, 2020, 3 a.m. 3.6 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 14.0 μg/m3 (13) 9.3 μg/m3 (39) 39.0
 
June 23, 2020, 2 a.m. 2.6 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 13.0 μg/m3 (12) 3.5 μg/m3 (15) 22.0
 
June 23, 2020, 1 a.m. 2.4 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 13.0 μg/m3 (12) 2.7 μg/m3 (11) 25.0
 
June 23, 2020, midnight 1.5 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 17.0 μg/m3 (15) 3.3 μg/m3 (14) 29.0
 
June 22, 2020, 11 p.m. 1.3 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 14.0 μg/m3 (13) 3.4 μg/m3 (14) 31.0
 
June 22, 2020, 10 p.m. 1.2 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 41.0 ppb (32) N/A 12.0 μg/m3 (11) 2.6 μg/m3 (11) 32.0
 
June 22, 2020, 9 p.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 9.0 μg/m3 (8) 3.4 μg/m3 (14) 32.0
 
June 22, 2020, 8 p.m. 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 8.0 μg/m3 (7) 0.4 μg/m3 (2) 32.0
 
June 22, 2020, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 5.0 μg/m3 (5) 0.8 μg/m3 (3) 32.0
 
June 22, 2020, 6 p.m. 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 10.0 μg/m3 (9) 3.2 μg/m3 (13) 31.0
 
June 22, 2020, 5 p.m. 1.0 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
 
June 22, 2020, 4 p.m. 1.0 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 6.0 μg/m3 (5) 3.3 μg/m3 (14) 28.0
 
June 22, 2020, 3 p.m. 1.1 ppb (1) 0.1 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) 3.0 μg/m3 (12) 26.0
 
June 22, 2020, 2 p.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 4.0 μg/m3 (4) 3.2 μg/m3 (13) 22.0
 
June 22, 2020, 1 p.m. 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 24.0 ppb (18) N/A 5.0 μg/m3 (5) 0.9 μg/m3 (4) 18.0
 
June 22, 2020, noon 3.3 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 11.0 μg/m3 (10) 1.7 μg/m3 (7) 16.0
 
June 22, 2020, 11 a.m. 2.1 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 2.0 μg/m3 (2) 4.1 μg/m3 (17) 21.0
 
June 22, 2020, 10 a.m. 2.1 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 6.0 μg/m3 (5) 3.9 μg/m3 (16) 19.0
 
June 22, 2020, 9 a.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 5.0 μg/m3 (5) 3.4 μg/m3 (14) 21.0
 
June 22, 2020, 8 a.m. 2.1 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 5.0 μg/m3 (5) 2.9 μg/m3 (12) 20.0
 
June 22, 2020, 7 a.m. 2.5 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 7.0 μg/m3 (6) 3.0 μg/m3 (12) 20.0
 
June 22, 2020, 6 a.m. 3.1 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 8.0 μg/m3 (7) 4.9 μg/m3 (20) 20.0
 
June 22, 2020, 5 a.m. 4.1 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 8.0 μg/m3 (7) 2.0 μg/m3 (8) 19.0
 
June 22, 2020, 4 a.m. 4.3 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 12.0 μg/m3 (11) 4.1 μg/m3 (17) 21.0
 
June 22, 2020, 3 a.m. 5.0 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 9.0 μg/m3 (8) 6.6 μg/m3 (28) 28.0
 
June 22, 2020, 2 a.m. 4.8 ppb (4) 0.2 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 12.0 μg/m3 (11) 3.8 μg/m3 (16) 26.0
 
June 22, 2020, 1 a.m. 6.0 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 17.0 μg/m3 (15) 5.4 μg/m3 (23) 27.0
 
June 22, 2020, midnight 3.3 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 43.0 ppb (33) N/A 14.0 μg/m3 (13) 5.8 μg/m3 (24) 33.0
 
June 21, 2020, 11 p.m. 4.0 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 45.0 ppb (35) N/A 9.0 μg/m3 (8) 8.3 μg/m3 (35) 35.0
 
June 21, 2020, 10 p.m. 3.5 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 46.0 ppb (35) N/A 10.0 μg/m3 (9) 5.5 μg/m3 (23) 35.0
 
June 21, 2020, 9 p.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 46.0 ppb (35) N/A 10.0 μg/m3 (9) 1.2 μg/m3 (5) 35.0
 
June 21, 2020, 8 p.m. 1.7 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 45.0 ppb (35) N/A 10.0 μg/m3 (9) 1.4 μg/m3 (6) 35.0
 
June 21, 2020, 7 p.m. 1.7 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 42.0 ppb (32) N/A 10.0 μg/m3 (9) 2.0 μg/m3 (8) 32.0
 
June 21, 2020, 6 p.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 10.0 μg/m3 (9) 3.0 μg/m3 (12) 30.0
 
June 21, 2020, 5 p.m. 1.8 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 36.0 ppb (28) N/A 8.0 μg/m3 (7) 2.2 μg/m3 (9) 28.0
 
June 21, 2020, 4 p.m. 1.9 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 33.0 ppb (25) N/A 5.0 μg/m3 (5) 0.5 μg/m3 (2) 25.0
 
June 21, 2020, 3 p.m. 2.5 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 5.0 μg/m3 (5) 1.0 μg/m3 (4) 21.0
 
June 21, 2020, 2 p.m. 2.6 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 24.0 ppb (18) N/A 5.0 μg/m3 (5) 3.5 μg/m3 (15) 18.0
 
June 21, 2020, 1 p.m. 3.7 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 17.0
 
June 21, 2020, noon 4.3 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 19.0 ppb (15) N/A 7.0 μg/m3 (6) 2.3 μg/m3 (10) 15.0
 
June 21, 2020, 11 a.m. 4.7 ppb (4) 0.2 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 19.0 ppb (15) N/A 7.0 μg/m3 (6) 2.9 μg/m3 (12) 15.0
 
June 21, 2020, 10 a.m. 3.1 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 6.0 μg/m3 (5) 3.6 μg/m3 (15) 16.0
 
June 21, 2020, 9 a.m. 3.6 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 8.0 μg/m3 (7) 2.5 μg/m3 (10) 16.0
 
June 21, 2020, 8 a.m. 4.5 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 6.0 μg/m3 (5) 0.9 μg/m3 (4) 16.0
 
June 21, 2020, 7 a.m. 4.5 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 23.0 ppb (18) N/A 8.0 μg/m3 (7) 3.5 μg/m3 (15) 18.0
 
June 21, 2020, 6 a.m. 4.9 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 12.0 μg/m3 (11) 2.8 μg/m3 (12) 20.0
 
June 21, 2020, 5 a.m. 3.9 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 20.0 μg/m3 (18) 1.2 μg/m3 (5) 24.0
 
June 21, 2020, 4 a.m. 3.2 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 9.0 μg/m3 (8) 3.4 μg/m3 (14) 27.0
 
June 21, 2020, 3 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 17.0 μg/m3 (15) 5.0 μg/m3 (21) 27.0
 
June 21, 2020, 2 a.m. 3.3 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 15.0 μg/m3 (14) 0.7 μg/m3 (3) 30.0
 
June 21, 2020, 1 a.m. 2.4 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 15.0 μg/m3 (14) 1.2 μg/m3 (5) 35.0
 
June 21, 2020, midnight 1.8 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 47.0 ppb (36) N/A 10.0 μg/m3 (9) 3.2 μg/m3 (13) 36.0
 
June 20, 2020, 11 p.m. 1.6 ppb (1) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 49.0 ppb (38) N/A 12.0 μg/m3 (11) 2.8 μg/m3 (12) 38.0
 
June 20, 2020, 10 p.m. 1.7 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 52.0 ppb (40) N/A 3.0 μg/m3 (3) 0.8 μg/m3 (3) 40.0
 
June 20, 2020, 9 p.m. 1.7 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 51.0 ppb (39) N/A 4.0 μg/m3 (4) 3.0 μg/m3 (12) 39.0
 
June 20, 2020, 8 p.m. 1.5 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 2.0 μg/m3 (2) 5.7 μg/m3 (24) 38.0
 
June 20, 2020, 7 p.m. 2.1 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 45.0 ppb (35) N/A 2.0 μg/m3 (2) 5.3 μg/m3 (22) 35.0
 
June 20, 2020, 6 p.m. 3.4 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 4.0 ppb (6) 37.0 ppb (28) N/A 10.0 μg/m3 (9) 4.2 μg/m3 (18) 28.0
 
June 20, 2020, 5 p.m. 3.0 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 4.0 ppb (6) 34.0 ppb (26) N/A 4.0 μg/m3 (4) 2.6 μg/m3 (11) 26.0
 
June 20, 2020, 4 p.m. 4.2 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 25.0 ppb (19) N/A 7.0 μg/m3 (6) 0.4 μg/m3 (2) 19.0
 
June 20, 2020, 3 p.m. 3.7 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 24.0 ppb (18) N/A 8.0 μg/m3 (7) -1.9 μg/m3 (0) 18.0
 
June 20, 2020, 2 p.m. 4.0 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A 4.0 ppb (6) 24.0 ppb (18) N/A 5.0 μg/m3 (5) -0.6 μg/m3 (0) 18.0
 
June 20, 2020, 1 p.m. 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 24.0 ppb (18) N/A 6.0 μg/m3 (5) 1.4 μg/m3 (6) 18.0
 
June 20, 2020, noon 2.5 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 23.0 ppb (18) N/A 6.0 μg/m3 (5) 2.5 μg/m3 (10) 18.0
 
June 20, 2020, 11 a.m. 2.9 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 17.0 ppb (13) N/A 7.0 μg/m3 (6) 1.6 μg/m3 (7) 13.0
 
June 20, 2020, 10 a.m. 3.1 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 16.0 ppb (12) N/A 5.0 μg/m3 (5) -0.9 μg/m3 (0) 12.0
 
June 20, 2020, 9 a.m. 2.1 ppb (2) 0.0 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) 0.9 μg/m3 (4) 18.0
 
June 20, 2020, 8 a.m. 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 1.0 μg/m3 (1) 4.0 μg/m3 (17) 19.0
 
June 20, 2020, 7 a.m. 2.7 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 20.0 ppb (15) N/A 4.0 μg/m3 (4) 4.7 μg/m3 (20) 20.0
 
June 20, 2020, 6 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 1.0 μg/m3 (1) 2.8 μg/m3 (12) 19.0
 
June 20, 2020, 5 a.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 5.0 μg/m3 (5) 2.9 μg/m3 (12) 21.0
 
June 20, 2020, 4 a.m. 1.6 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 3.0 μg/m3 (3) 1.5 μg/m3 (6) 22.0
 
June 20, 2020, 3 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 8.0 μg/m3 (7) 0.8 μg/m3 (3) 21.0
 
June 20, 2020, 2 a.m. 1.5 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 25.0 μg/m3 (23) 1.9 μg/m3 (8) 23.0
 
June 20, 2020, 1 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 20.0 μg/m3 (18) 0.5 μg/m3 (2) 23.0
 
June 20, 2020, midnight 1.4 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) 1.6 μg/m3 (7) 30.0
 
June 19, 2020, 11 p.m. 0.9 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 7.0 μg/m3 (6) 2.4 μg/m3 (10) 35.0