ID: 645

AQSQID: 380650002

Site Name: Hannover

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

Updated: Sept. 29, 2020, 8:39 a.m.

Location: Stanton (N Dakota Hwy 31), ND

Reporting: True, Located: True

Current AQI: 22.0

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
Sept. 29, 2020, 6 a.m. 1.0 ppb (1) 0.5 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 29.0 ppb (22) N/A N/A 2.8 μg/m3 (12) 22.0
 
Sept. 29, 2020, 5 a.m. 0.8 ppb (1) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 27.0 ppb (21) N/A N/A 2.5 μg/m3 (10) 21.0
 
Sept. 29, 2020, 4 a.m. 1.2 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 24.0 ppb (18) N/A N/A 3.7 μg/m3 (15) 18.0
 
Sept. 29, 2020, 3 a.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 3.9 μg/m3 (16) 19.0
 
Sept. 29, 2020, 2 a.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 28.0 ppb (22) N/A N/A 4.1 μg/m3 (17) 22.0
 
Sept. 29, 2020, 1 a.m. 1.3 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 31.0 ppb (24) N/A N/A 4.9 μg/m3 (20) 24.0
 
Sept. 29, 2020, midnight 1.3 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 30.0 ppb (23) N/A N/A 6.5 μg/m3 (27) 27.0
 
Sept. 28, 2020, 11 p.m. 0.9 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 32.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
Sept. 28, 2020, 10 p.m. 0.8 ppb (1) 0.5 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 32.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
Sept. 28, 2020, 9 p.m. 0.7 ppb (1) 0.5 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 31.0 ppb (24) N/A N/A 3.5 μg/m3 (15) 24.0
 
Sept. 28, 2020, 8 p.m. 0.7 ppb (1) 0.5 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 28.0 ppb (22) N/A N/A 3.1 μg/m3 (13) 22.0
 
Sept. 28, 2020, 7 p.m. 0.7 ppb (1) 0.5 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 2.7 μg/m3 (11) 19.0
 
Sept. 28, 2020, 6 p.m. 0.7 ppb (1) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 24.0 ppb (18) N/A N/A 2.0 μg/m3 (8) 18.0
 
Sept. 28, 2020, 5 p.m. 0.8 ppb (1) 0.5 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 1.0 μg/m3 (4) 19.0
 
Sept. 28, 2020, 4 p.m. 0.6 ppb (1) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 28.0 ppb (22) N/A N/A 1.0 μg/m3 (4) 22.0
 
Sept. 28, 2020, 3 p.m. 0.6 ppb (1) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 22.0 ppb (17) N/A N/A 1.3 μg/m3 (5) 17.0
 
Sept. 28, 2020, 2 p.m. 1.0 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 17.0 ppb (13) N/A N/A 2.0 μg/m3 (8) 13.0
 
Sept. 28, 2020, 1 p.m. 1.8 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 14.0 ppb (11) N/A N/A 3.2 μg/m3 (13) 13.0
 
Sept. 28, 2020, noon 2.1 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 13.0 ppb (10) N/A N/A 3.4 μg/m3 (14) 14.0
 
Sept. 28, 2020, 11 a.m. 2.0 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 15.0 ppb (12) N/A N/A 3.3 μg/m3 (14) 14.0
 
Sept. 28, 2020, 10 a.m. 1.8 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 16.0 ppb (12) N/A N/A 3.1 μg/m3 (13) 13.0
 
Sept. 28, 2020, 9 a.m. 1.7 ppb (2) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 17.0 ppb (13) N/A N/A 2.6 μg/m3 (11) 13.0
 
Sept. 28, 2020, 8 a.m. 1.4 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 18.0 ppb (14) N/A N/A 2.6 μg/m3 (11) 14.0
 
Sept. 28, 2020, 7 a.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 19.0 ppb (15) N/A N/A 1.9 μg/m3 (8) 15.0
 
Sept. 28, 2020, 6 a.m. 1.1 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 21.0 ppb (16) N/A N/A 1.8 μg/m3 (8) 16.0
 
Sept. 28, 2020, 5 a.m. 1.0 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 23.0 ppb (18) N/A N/A 1.6 μg/m3 (7) 18.0
 
Sept. 28, 2020, 4 a.m. 0.9 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 24.0 ppb (18) N/A N/A 1.5 μg/m3 (6) 18.0
 
Sept. 28, 2020, 3 a.m. 0.9 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 1.4 μg/m3 (6) 19.0
 
Sept. 28, 2020, 2 a.m. 0.9 ppb (1) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 26.0 ppb (20) N/A N/A 1.4 μg/m3 (6) 20.0
 
Sept. 28, 2020, 1 a.m. 0.8 ppb (1) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 28.0 ppb (22) N/A N/A 1.5 μg/m3 (6) 22.0
 
Sept. 28, 2020, midnight 0.8 ppb (1) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 29.0 ppb (22) N/A N/A 1.4 μg/m3 (6) 22.0
 
Sept. 27, 2020, 11 p.m. 0.6 ppb (1) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 28.0 ppb (22) N/A N/A 1.3 μg/m3 (5) 22.0
 
Sept. 27, 2020, 10 p.m. 0.6 ppb (1) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 27.0 ppb (21) N/A N/A 1.1 μg/m3 (5) 21.0
 
Sept. 27, 2020, 9 p.m. 0.4 ppb (0) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 27.0 ppb (21) N/A N/A 1.2 μg/m3 (5) 21.0
 
Sept. 27, 2020, 8 p.m. 0.5 ppb (0) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 27.0 ppb (21) N/A N/A 1.5 μg/m3 (6) 21.0
 
Sept. 27, 2020, 7 p.m. 0.7 ppb (1) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 26.0 ppb (20) N/A N/A 1.9 μg/m3 (8) 20.0
 
Sept. 27, 2020, 6 p.m. 0.5 ppb (0) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 26.0 ppb (20) N/A N/A 1.7 μg/m3 (7) 20.0
 
Sept. 27, 2020, 5 p.m. 0.8 ppb (1) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 26.0 ppb (20) N/A N/A 1.7 μg/m3 (7) 20.0
 
Sept. 27, 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 N/A 1.7 μg/m3 (7) 19.0
 
Sept. 27, 2020, 3 p.m. 2.1 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 3.0 ppb (4) 22.0 ppb (17) N/A N/A 1.7 μg/m3 (7) 17.0
 
Sept. 27, 2020, 2 p.m. 1.3 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 21.0 ppb (16) N/A N/A 1.5 μg/m3 (6) 16.0
 
Sept. 27, 2020, 1 p.m. 1.1 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 21.0 ppb (16) N/A N/A 1.7 μg/m3 (7) 16.0
 
Sept. 27, 2020, noon 1.0 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 24.0 ppb (18) N/A N/A 1.7 μg/m3 (7) 18.0
 
Sept. 27, 2020, 11 a.m. 1.7 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 29.0 ppb (22) N/A N/A 1.9 μg/m3 (8) 22.0
 
Sept. 27, 2020, 10 a.m. 0.4 ppb (0) 0.2 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 35.0 ppb (27) N/A N/A 1.2 μg/m3 (5) 27.0
 
Sept. 27, 2020, 9 a.m. 0.7 ppb (1) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 35.0 ppb (27) N/A N/A 1.6 μg/m3 (7) 27.0
 
Sept. 27, 2020, 8 a.m. 1.2 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 31.0 ppb (24) N/A N/A 1.7 μg/m3 (7) 24.0
 
Sept. 27, 2020, 7 a.m. 0.9 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 30.0 ppb (23) N/A N/A 2.1 μg/m3 (9) 23.0
 
Sept. 27, 2020, 6 a.m. 1.7 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 26.0 ppb (20) N/A N/A 1.8 μg/m3 (8) 20.0
 
Sept. 27, 2020, 5 a.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 27.0 ppb (21) N/A N/A 1.7 μg/m3 (7) 21.0
 
Sept. 27, 2020, 4 a.m. 0.7 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 28.0 ppb (22) N/A N/A 1.9 μg/m3 (8) 22.0
 
Sept. 27, 2020, 3 a.m. 0.5 ppb (0) 0.2 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 28.0 ppb (22) N/A N/A 2.7 μg/m3 (11) 22.0
 
Sept. 27, 2020, 2 a.m. 1.1 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 32.0 ppb (25) N/A N/A 2.5 μg/m3 (10) 25.0
 
Sept. 27, 2020, 1 a.m. 0.9 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 35.0 ppb (27) N/A N/A 3.4 μg/m3 (14) 27.0
 
Sept. 27, 2020, midnight 1.8 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 36.0 ppb (28) N/A N/A 3.5 μg/m3 (15) 28.0
 
Sept. 26, 2020, 11 p.m. 1.5 ppb (1) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 36.0 ppb (28) N/A N/A 3.4 μg/m3 (14) 28.0
 
Sept. 26, 2020, 10 p.m. 0.8 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 38.0 ppb (29) N/A N/A 3.3 μg/m3 (14) 29.0
 
Sept. 26, 2020, 9 p.m. 1.0 ppb (1) 0.5 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 39.0 ppb (30) N/A N/A 2.9 μg/m3 (12) 30.0
 
Sept. 26, 2020, 8 p.m. 1.0 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 39.0 ppb (30) N/A N/A 3.2 μg/m3 (13) 30.0
 
Sept. 26, 2020, 7 p.m. 1.1 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 37.0 ppb (28) N/A N/A 4.0 μg/m3 (17) 28.0
 
Sept. 26, 2020, 6 p.m. 1.3 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 37.0 ppb (28) N/A N/A 4.4 μg/m3 (18) 28.0
 
Sept. 26, 2020, 5 p.m. 3.3 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 5.0 ppb (7) 36.0 ppb (28) N/A N/A 4.2 μg/m3 (18) 28.0
 
Sept. 26, 2020, 4 p.m. 3.6 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 7.0 ppb (10) 34.0 ppb (26) N/A N/A 4.8 μg/m3 (20) 26.0
 
Sept. 26, 2020, 3 p.m. 1.7 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 3.0 ppb (4) 33.0 ppb (25) N/A N/A 5.9 μg/m3 (25) 25.0
 
Sept. 26, 2020, 2 p.m. 1.5 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 32.0 ppb (25) N/A N/A 6.5 μg/m3 (27) 27.0
 
Sept. 26, 2020, 1 p.m. 1.5 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 32.0 ppb (25) N/A N/A 6.4 μg/m3 (27) 27.0
 
Sept. 26, 2020, noon 1.5 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 33.0 ppb (25) N/A N/A 7.8 μg/m3 (32) 32.0
 
Sept. 26, 2020, 11 a.m. 1.3 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 33.0 ppb (25) N/A N/A 9.3 μg/m3 (39) 39.0
 
Sept. 26, 2020, 10 a.m. 1.0 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A N/A 9.6 μg/m3 (40) 40.0
 
Sept. 26, 2020, 9 a.m. 1.2 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A N/A 8.8 μg/m3 (37) 37.0
 
Sept. 26, 2020, 8 a.m. 1.3 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 33.0 ppb (25) N/A N/A 8.1 μg/m3 (34) 34.0
 
Sept. 26, 2020, 7 a.m. 1.1 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A N/A 8.7 μg/m3 (36) 36.0
 
Sept. 26, 2020, 6 a.m. 0.9 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A N/A 8.2 μg/m3 (34) 34.0
 
Sept. 26, 2020, 5 a.m. 1.4 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
Sept. 26, 2020, 4 a.m. 1.2 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A 4.7 μg/m3 (20) 28.0
 
Sept. 26, 2020, 3 a.m. 1.6 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A 4.7 μg/m3 (20) 28.0
 
Sept. 26, 2020, 2 a.m. 1.4 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A N/A 4.0 μg/m3 (17) 29.0
 
Sept. 26, 2020, 1 a.m. 1.3 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A N/A 4.8 μg/m3 (20) 28.0
 
Sept. 26, 2020, midnight 1.0 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A N/A 4.0 μg/m3 (17) 28.0
 
Sept. 25, 2020, 11 p.m. 1.2 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 39.0 ppb (30) N/A N/A 2.4 μg/m3 (10) 30.0
 
Sept. 25, 2020, 10 p.m. 1.5 ppb (1) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 41.0 ppb (32) N/A N/A 2.2 μg/m3 (9) 32.0
 
Sept. 25, 2020, 9 p.m. 1.6 ppb (1) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 41.0 ppb (32) N/A N/A 2.2 μg/m3 (9) 32.0
 
Sept. 25, 2020, 8 p.m. 0.8 ppb (1) 0.5 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 40.0 ppb (31) N/A N/A 2.2 μg/m3 (9) 31.0
 
Sept. 25, 2020, 7 p.m. 1.1 ppb (1) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 38.0 ppb (29) N/A N/A 2.0 μg/m3 (8) 29.0
 
Sept. 25, 2020, 6 p.m. 1.0 ppb (1) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 37.0 ppb (28) N/A N/A 1.6 μg/m3 (7) 28.0
 
Sept. 25, 2020, 5 p.m. 0.9 ppb (1) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 35.0 ppb (27) N/A N/A 2.1 μg/m3 (9) 27.0
 
Sept. 25, 2020, 4 p.m. 0.9 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 34.0 ppb (26) N/A N/A 2.7 μg/m3 (11) 26.0
 
Sept. 25, 2020, 3 p.m. 1.2 ppb (1) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 32.0 ppb (25) N/A N/A 2.9 μg/m3 (12) 25.0
 
Sept. 25, 2020, 2 p.m. 2.0 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 29.0 ppb (22) N/A N/A 2.9 μg/m3 (12) 22.0
 
Sept. 25, 2020, 1 p.m. 3.0 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 27.0 ppb (21) N/A N/A 3.0 μg/m3 (12) 21.0
 
Sept. 25, 2020, noon 1.6 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 30.0 ppb (23) N/A N/A 2.5 μg/m3 (10) 23.0
 
Sept. 25, 2020, 11 a.m. 1.4 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 32.0 ppb (25) N/A N/A 2.4 μg/m3 (10) 25.0
 
Sept. 25, 2020, 10 a.m. 1.6 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 32.0 ppb (25) N/A N/A 2.0 μg/m3 (8) 25.0
 
Sept. 25, 2020, 9 a.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 N/A 2.1 μg/m3 (9) 25.0
 
Sept. 25, 2020, 8 a.m. 1.9 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 34.0 ppb (26) N/A N/A 2.0 μg/m3 (8) 26.0
 
Sept. 25, 2020, 7 a.m. 2.1 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 3.0 ppb (4) 35.0 ppb (27) N/A N/A 2.3 μg/m3 (10) 27.0
 
Sept. 25, 2020, 6 a.m. 2.6 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 4.0 ppb (6) 36.0 ppb (28) N/A N/A 3.5 μg/m3 (15) 28.0
 
Sept. 25, 2020, 5 a.m. 1.9 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A 13.3 μg/m3 (53) 53.0
 
Sept. 25, 2020, 4 a.m. 1.6 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A N/A 15.7 μg/m3 (58) 58.0
 
Sept. 25, 2020, 3 a.m. 1.0 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 40.0 ppb (31) N/A N/A 17.8 μg/m3 (62) 62.0
 
Sept. 25, 2020, 2 a.m. 1.2 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 45.0 ppb (35) N/A N/A 19.6 μg/m3 (66) 66.0
 
Sept. 25, 2020, 1 a.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 N/A 19.1 μg/m3 (65) 65.0
 
Sept. 25, 2020, midnight 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 N/A 19.1 μg/m3 (65) 65.0
 
Sept. 24, 2020, 11 p.m. 0.9 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) N/A N/A 19.4 μg/m3 (66) 66.0
 
Sept. 24, 2020, 10 p.m. 0.8 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) N/A N/A 19.2 μg/m3 (65) 65.0
 
Sept. 24, 2020, 9 p.m. 0.9 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 47.0 ppb (36) N/A N/A 19.3 μg/m3 (66) 66.0
 
Sept. 24, 2020, 8 p.m. 0.8 ppb (1) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 48.0 ppb (37) N/A N/A 19.1 μg/m3 (65) 65.0
 
Sept. 24, 2020, 7 p.m. 0.7 ppb (1) 0.2 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 47.0 ppb (36) N/A N/A 17.5 μg/m3 (62) 62.0
 
Sept. 24, 2020, 6 p.m. 0.8 ppb (1) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 44.0 ppb (34) N/A N/A 16.4 μg/m3 (59) 59.0
 
Sept. 24, 2020, 5 p.m. 1.3 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A 14.6 μg/m3 (56) 56.0
 
Sept. 24, 2020, 4 p.m. 2.1 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 11.5 μg/m3 (48) 48.0
 
Sept. 24, 2020, 3 p.m. 1.7 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 20.0 ppb (15) N/A N/A 9.2 μg/m3 (38) 38.0
 
Sept. 24, 2020, 2 p.m. 4.5 ppb (4) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 14.0 ppb (11) N/A N/A 8.3 μg/m3 (35) 35.0
 
Sept. 24, 2020, 1 p.m. 8.3 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 10.0 ppb (8) N/A N/A 8.1 μg/m3 (34) 34.0
 
Sept. 24, 2020, noon 3.3 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 15.0 ppb (12) N/A N/A 6.6 μg/m3 (28) 28.0
 
Sept. 24, 2020, 11 a.m. 3.3 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 17.0 ppb (13) N/A N/A 5.8 μg/m3 (24) 24.0
 
Sept. 24, 2020, 10 a.m. 1.5 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 19.0 ppb (15) N/A N/A 5.2 μg/m3 (22) 22.0
 
Sept. 24, 2020, 9 a.m. 1.2 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 22.0 ppb (17) N/A N/A 5.6 μg/m3 (23) 23.0
 
Sept. 24, 2020, 8 a.m. 1.1 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 24.0 ppb (18) N/A N/A 5.6 μg/m3 (23) 23.0
 
Sept. 24, 2020, 7 a.m. 1.1 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 24.0 ppb (18) N/A N/A 5.9 μg/m3 (25) 25.0
 
Sept. 24, 2020, 6 a.m. 1.3 ppb (1) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 23.0 ppb (18) N/A N/A 6.1 μg/m3 (25) 25.0
 
Sept. 24, 2020, 5 a.m. 1.2 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 23.0 ppb (18) N/A N/A 5.8 μg/m3 (24) 24.0
 
Sept. 24, 2020, 4 a.m. 1.7 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 21.0 ppb (16) N/A N/A 6.2 μg/m3 (26) 26.0
 
Sept. 24, 2020, 3 a.m. 1.3 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 22.0 ppb (17) N/A N/A 6.8 μg/m3 (28) 28.0
 
Sept. 24, 2020, 2 a.m. 1.5 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 24.0 ppb (18) N/A N/A 8.2 μg/m3 (34) 34.0
 
Sept. 24, 2020, 1 a.m. 1.4 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 9.2 μg/m3 (38) 38.0
 
Sept. 24, 2020, midnight 1.6 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 27.0 ppb (21) N/A N/A 9.7 μg/m3 (40) 40.0
 
Sept. 23, 2020, 11 p.m. 2.0 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 31.0 ppb (24) N/A N/A 10.1 μg/m3 (42) 42.0
 
Sept. 23, 2020, 10 p.m. 1.3 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 32.0 ppb (25) N/A N/A 10.2 μg/m3 (42) 42.0
 
Sept. 23, 2020, 9 p.m. 1.6 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A N/A 11.4 μg/m3 (48) 48.0
 
Sept. 23, 2020, 8 p.m. 3.7 ppb (3) 1.2 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 38.0 ppb (29) N/A N/A 13.2 μg/m3 (53) 53.0
 
Sept. 23, 2020, 7 p.m. 11.3 ppb (10) 4.1 ppb (4) N/A 7.0 ppb (6) N/A 3.0 ppb (4) 29.0 ppb (22) N/A N/A 13.6 μg/m3 (53) 53.0
 
Sept. 23, 2020, 6 p.m. 5.7 ppb (5) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 30.0 ppb (23) N/A N/A 12.4 μg/m3 (51) 51.0
 
Sept. 23, 2020, 5 p.m. 3.7 ppb (3) 1.4 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 26.0 ppb (20) N/A N/A 11.3 μg/m3 (47) 47.0
 
Sept. 23, 2020, 4 p.m. 1.3 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 23.0 ppb (18) N/A N/A 10.6 μg/m3 (44) 44.0
 
Sept. 23, 2020, 3 p.m. 1.3 ppb (1) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 22.0 ppb (17) N/A N/A 10.1 μg/m3 (42) 42.0
 
Sept. 23, 2020, 2 p.m. 0.9 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 21.0 ppb (16) N/A N/A 10.4 μg/m3 (43) 43.0
 
Sept. 23, 2020, 1 p.m. 2.9 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 22.0 ppb (17) N/A N/A 13.5 μg/m3 (53) 53.0
 
Sept. 23, 2020, noon 3.4 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 16.7 μg/m3 (60) 60.0
 
Sept. 23, 2020, 11 a.m. 2.2 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 41.0 ppb (32) N/A N/A 18.9 μg/m3 (65) 65.0
 
Sept. 23, 2020, 10 a.m. 1.9 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) N/A N/A 18.6 μg/m3 (64) 64.0
 
Sept. 23, 2020, 9 a.m. 3.8 ppb (4) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 40.0 ppb (31) N/A N/A 18.2 μg/m3 (63) 63.0
 
Sept. 23, 2020, 8 a.m. 6.1 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A 3.0 ppb (4) 33.0 ppb (25) N/A N/A 16.7 μg/m3 (60) 60.0
 
Sept. 23, 2020, 7 a.m. 5.9 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 36.0 ppb (28) N/A N/A 15.7 μg/m3 (58) 58.0
 
Sept. 23, 2020, 6 a.m. 9.9 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 34.0 ppb (26) N/A N/A 15.1 μg/m3 (57) 57.0
 
Sept. 23, 2020, 5 a.m. 13.5 ppb (12) 0.6 ppb (1) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 32.0 ppb (25) N/A N/A 15.0 μg/m3 (56) 56.0
 
Sept. 23, 2020, 4 a.m. 6.4 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 40.0 ppb (31) N/A N/A 15.3 μg/m3 (57) 57.0
 
Sept. 23, 2020, 3 a.m. 3.5 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 43.0 ppb (33) N/A N/A 16.2 μg/m3 (59) 59.0
 
Sept. 23, 2020, 2 a.m. 2.2 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 47.0 ppb (36) N/A N/A 14.2 μg/m3 (55) 55.0
 
Sept. 23, 2020, 1 a.m. 3.6 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 48.0 ppb (37) N/A N/A 13.0 μg/m3 (52) 52.0
 
Sept. 23, 2020, midnight 1.9 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 50.0 ppb (38) N/A N/A 12.1 μg/m3 (50) 50.0
 
Sept. 22, 2020, 11 p.m. 1.4 ppb (1) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 50.0 ppb (38) N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 22, 2020, 10 p.m. 1.3 ppb (1) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 53.0 ppb (41) N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 22, 2020, 9 p.m. 1.1 ppb (1) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 53.0 ppb (41) N/A N/A 12.7 μg/m3 (51) 51.0
 
Sept. 22, 2020, 8 p.m. 1.1 ppb (1) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 52.0 ppb (40) N/A N/A 12.9 μg/m3 (52) 52.0
 
Sept. 22, 2020, 7 p.m. 1.1 ppb (1) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 51.0 ppb (39) N/A N/A 13.9 μg/m3 (54) 54.0
 
Sept. 22, 2020, 6 p.m. 1.1 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 48.0 ppb (37) N/A N/A 15.0 μg/m3 (56) 56.0
 
Sept. 22, 2020, 5 p.m. 1.0 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 46.0 ppb (35) N/A N/A 15.1 μg/m3 (57) 57.0
 
Sept. 22, 2020, 4 p.m. 0.9 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 45.0 ppb (35) N/A N/A 15.4 μg/m3 (57) 57.0
 
Sept. 22, 2020, 3 p.m. 1.2 ppb (1) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 42.0 ppb (32) N/A N/A 15.6 μg/m3 (58) 58.0
 
Sept. 22, 2020, 2 p.m. 1.6 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 33.0 ppb (25) N/A N/A 15.4 μg/m3 (57) 57.0
 
Sept. 22, 2020, 1 p.m. 1.8 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 29.0 ppb (22) N/A N/A 14.1 μg/m3 (54) 54.0
 
Sept. 22, 2020, noon 2.2 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A N/A 13.8 μg/m3 (54) 54.0
 
Sept. 22, 2020, 11 a.m. 1.6 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 30.0 ppb (23) N/A N/A 13.6 μg/m3 (53) 53.0
 
Sept. 22, 2020, 10 a.m. 2.2 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 30.0 ppb (23) N/A N/A 13.2 μg/m3 (53) 53.0
 
Sept. 22, 2020, 9 a.m. 2.1 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 30.0 ppb (23) N/A N/A 13.1 μg/m3 (52) 52.0
 
Sept. 22, 2020, 8 a.m. 2.5 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 30.0 ppb (23) N/A N/A 13.1 μg/m3 (52) 52.0
 
Sept. 22, 2020, 7 a.m. 3.4 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 32.0 ppb (25) N/A N/A 13.0 μg/m3 (52) 52.0