AQSQID: 381010003

Site Name: Ryder

Location: Ryder (184th St Swest), ND

Reporting: True, Located: True

Current AQI: 35.0

Ryder (184th St Swest) ND, US: 47.940861, -101.571583

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Dec. 7, 2019, 1 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 17.0 ppb (13) N/A 2.0 μg/m3 (2) 5.4 μg/m3 (23) 23.0
 
Dec. 7, 2019, noon 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 18.0 ppb (14) N/A 2.0 μg/m3 (2) 3.8 μg/m3 (16) 16.0
 
Dec. 7, 2019, 11 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 17.0 ppb (13) N/A 1.0 μg/m3 (1) 6.0 μg/m3 (25) 25.0
 
Dec. 7, 2019, 10 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 16.0 ppb (12) N/A 1.0 μg/m3 (1) 10.4 μg/m3 (43) 43.0
 
Dec. 7, 2019, 9 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 15.0 ppb (12) N/A 3.0 μg/m3 (3) 7.6 μg/m3 (32) 32.0
 
Dec. 7, 2019, 8 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 16.0 ppb (12) N/A 2.0 μg/m3 (2) 5.7 μg/m3 (24) 24.0
 
Dec. 7, 2019, 7 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 14.0 ppb (11) N/A 2.0 μg/m3 (2) 6.1 μg/m3 (25) 25.0
 
Dec. 7, 2019, 6 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 13.0 ppb (10) N/A 2.0 μg/m3 (2) 6.8 μg/m3 (28) 28.0
 
Dec. 7, 2019, 5 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 12.0 ppb (9) N/A 3.0 μg/m3 (3) 9.0 μg/m3 (38) 38.0
 
Dec. 7, 2019, 4 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 12.0 ppb (9) N/A 4.0 μg/m3 (4) 10.3 μg/m3 (43) 43.0
 
Dec. 7, 2019, 3 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 11.0 ppb (8) N/A 5.0 μg/m3 (5) 11.5 μg/m3 (48) 48.0
 
Dec. 7, 2019, 2 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 12.0 ppb (9) N/A 5.0 μg/m3 (5) 10.2 μg/m3 (42) 42.0
 
Dec. 7, 2019, 1 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 13.0 ppb (10) N/A 6.0 μg/m3 (5) 11.5 μg/m3 (48) 48.0
 
Dec. 7, 2019, midnight 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 12.0 ppb (9) N/A 6.0 μg/m3 (5) 7.5 μg/m3 (31) 31.0
 
Dec. 6, 2019, 11 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 14.0 ppb (11) N/A 6.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Dec. 6, 2019, 10 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 18.0 ppb (14) N/A 5.0 μg/m3 (5) 10.5 μg/m3 (44) 44.0
 
Dec. 6, 2019, 9 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (15) N/A 6.0 μg/m3 (5) 11.3 μg/m3 (47) 47.0
 
Dec. 6, 2019, 8 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (16) N/A 5.0 μg/m3 (5) 13.1 μg/m3 (52) 52.0
 
Dec. 6, 2019, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 5.0 μg/m3 (5) 11.3 μg/m3 (47) 47.0
 
Dec. 6, 2019, 6 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 5.0 μg/m3 (5) 18.2 μg/m3 (63) 63.0
 
Dec. 6, 2019, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 7.0 μg/m3 (6) 15.7 μg/m3 (58) 58.0
 
Dec. 6, 2019, 4 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 9.0 μg/m3 (8) 11.7 μg/m3 (49) 49.0
 
Dec. 6, 2019, 3 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 6.0 μg/m3 (5) 13.7 μg/m3 (54) 54.0
 
Dec. 6, 2019, 2 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 8.0 μg/m3 (7) 12.1 μg/m3 (50) 50.0
 
Dec. 6, 2019, 1 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 6.0 μg/m3 (5) 10.3 μg/m3 (43) 43.0
 
Dec. 6, 2019, noon 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 4.0 μg/m3 (4) 16.9 μg/m3 (60) 60.0
 
Dec. 6, 2019, 11 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 22.0 ppb (17) N/A 7.0 μg/m3 (6) 18.7 μg/m3 (64) 64.0
 
Dec. 6, 2019, 10 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 17.0 ppb (13) N/A 10.0 μg/m3 (9) 9.3 μg/m3 (39) 39.0
 
Dec. 6, 2019, 9 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 19.0 ppb (15) N/A 3.0 μg/m3 (3) 6.2 μg/m3 (26) 26.0
 
Dec. 6, 2019, 8 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 18.0 ppb (14) N/A 5.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
Dec. 6, 2019, 7 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 16.0 ppb (12) N/A 4.0 μg/m3 (4) 7.6 μg/m3 (32) 32.0
 
Dec. 6, 2019, 6 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 18.0 ppb (14) N/A 4.0 μg/m3 (4) 6.0 μg/m3 (25) 25.0
 
Dec. 6, 2019, 5 a.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 5.0 μg/m3 (5) 3.3 μg/m3 (14) 15.0
 
Dec. 6, 2019, 4 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (15) N/A 5.0 μg/m3 (5) 3.7 μg/m3 (15) 15.0
 
Dec. 6, 2019, 3 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (15) N/A 5.0 μg/m3 (5) 3.9 μg/m3 (16) 16.0
 
Dec. 6, 2019, 2 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (16) N/A 4.0 μg/m3 (4) 3.1 μg/m3 (13) 16.0
 
Dec. 6, 2019, 1 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 4.0 μg/m3 (4) -2.9 μg/m3 (0) 18.0
 
Dec. 6, 2019, midnight 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 5.0 μg/m3 (5) -3.9 μg/m3 (0) 19.0
 
Dec. 5, 2019, 11 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 5.0 μg/m3 (5) 3.0 μg/m3 (12) 23.0
 
Dec. 5, 2019, 10 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 6.0 μg/m3 (5) 8.3 μg/m3 (35) 35.0
 
Dec. 5, 2019, 9 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 5.0 μg/m3 (5) 2.3 μg/m3 (10) 23.0
 
Dec. 5, 2019, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 5.0 μg/m3 (5) 4.4 μg/m3 (18) 22.0
 
Dec. 5, 2019, 7 p.m. 1.0 ppb (1) 0.0 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) 3.9 μg/m3 (16) 22.0
 
Dec. 5, 2019, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 4.0 μg/m3 (4) 2.7 μg/m3 (11) 22.0
 
Dec. 5, 2019, 5 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 5.0 μg/m3 (5) 4.0 μg/m3 (17) 22.0
 
Dec. 5, 2019, 4 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 6.0 μg/m3 (5) 5.1 μg/m3 (21) 22.0
 
Dec. 5, 2019, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 7.0 μg/m3 (6) 4.9 μg/m3 (20) 20.0
 
Dec. 5, 2019, 2 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 7.0 μg/m3 (6) 5.7 μg/m3 (24) 24.0
 
Dec. 5, 2019, 1 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 6.0 μg/m3 (5) 7.9 μg/m3 (33) 33.0
 
Dec. 5, 2019, noon 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 7.0 μg/m3 (6) 6.3 μg/m3 (26) 26.0
 
Dec. 5, 2019, 11 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 19.0 ppb (15) N/A 8.0 μg/m3 (7) 2.9 μg/m3 (12) 15.0
 
Dec. 5, 2019, 10 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 15.0 ppb (12) N/A 4.0 μg/m3 (4) 2.6 μg/m3 (11) 12.0
 
Dec. 5, 2019, 9 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (10) N/A 4.0 μg/m3 (4) 2.8 μg/m3 (12) 12.0
 
Dec. 5, 2019, 8 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 14.0 ppb (11) N/A 4.0 μg/m3 (4) 2.0 μg/m3 (8) 11.0
 
Dec. 5, 2019, 7 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 17.0 ppb (13) N/A 2.0 μg/m3 (2) 1.5 μg/m3 (6) 13.0
 
Dec. 5, 2019, 6 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) N/A 2.0 μg/m3 (2) 0.9 μg/m3 (4) 15.0
 
Dec. 5, 2019, 5 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 18.0 ppb (14) N/A 2.0 μg/m3 (2) 2.0 μg/m3 (8) 14.0
 
Dec. 5, 2019, 4 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 18.0 ppb (14) N/A 2.0 μg/m3 (2) 3.4 μg/m3 (14) 14.0
 
Dec. 5, 2019, 3 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 17.0 ppb (13) N/A 3.0 μg/m3 (3) 2.5 μg/m3 (10) 13.0
 
Dec. 5, 2019, 2 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (15) N/A 1.0 μg/m3 (1) 1.6 μg/m3 (7) 15.0
 
Dec. 5, 2019, 1 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (15) N/A 1.0 μg/m3 (1) 5.6 μg/m3 (23) 23.0
 
Dec. 5, 2019, midnight 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 4.0 μg/m3 (4) 9.5 μg/m3 (40) 40.0
 
Dec. 4, 2019, 11 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) N/A 7.0 μg/m3 (6) 2.3 μg/m3 (10) 15.0
 
Dec. 4, 2019, 10 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 20.0 ppb (15) N/A 3.0 μg/m3 (3) 1.9 μg/m3 (8) 15.0
 
Dec. 4, 2019, 9 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 1.0 μg/m3 (1) 3.3 μg/m3 (14) 22.0
 
Dec. 4, 2019, 8 p.m. 4.0 ppb (4) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 0.0 μg/m3 (0) 2.5 μg/m3 (10) 22.0
 
Dec. 4, 2019, 7 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 33.0 ppb (25) N/A -1.0 μg/m3 (0) 1.7 μg/m3 (7) 25.0
 
Dec. 4, 2019, 6 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 30.0 ppb (23) N/A -1.0 μg/m3 (0) 1.6 μg/m3 (7) 23.0
 
Dec. 4, 2019, 5 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 2.0 μg/m3 (2) 2.0 μg/m3 (8) 19.0
 
Dec. 4, 2019, 4 p.m. 7.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 20.0 ppb (15) N/A 1.0 μg/m3 (1) 3.9 μg/m3 (16) 16.0
 
Dec. 4, 2019, 3 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 17.0 ppb (13) N/A 1.0 μg/m3 (1) 5.8 μg/m3 (24) 24.0
 
Dec. 4, 2019, 2 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 16.0 ppb (12) N/A 1.0 μg/m3 (1) 5.0 μg/m3 (21) 21.0
 
Dec. 4, 2019, 1 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 17.0 ppb (13) N/A 1.0 μg/m3 (1) 7.9 μg/m3 (33) 33.0
 
Dec. 4, 2019, noon 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 17.0 ppb (13) N/A 1.0 μg/m3 (1) 3.7 μg/m3 (15) 15.0
 
Dec. 4, 2019, 11 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 17.0 ppb (13) N/A 0.0 μg/m3 (0) 1.3 μg/m3 (5) 13.0
 
Dec. 4, 2019, 10 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 18.0 ppb (14) N/A 2.0 μg/m3 (2) 2.2 μg/m3 (9) 14.0
 
Dec. 4, 2019, 9 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 18.0 ppb (14) N/A 1.0 μg/m3 (1) 1.6 μg/m3 (7) 14.0
 
Dec. 4, 2019, 8 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 19.0 ppb (15) N/A 1.0 μg/m3 (1) 0.7 μg/m3 (3) 15.0
 
Dec. 4, 2019, 7 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 21.0 ppb (16) N/A 1.0 μg/m3 (1) 1.3 μg/m3 (5) 16.0
 
Dec. 4, 2019, 6 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 0.0 μg/m3 (0) 1.9 μg/m3 (8) 17.0
 
Dec. 4, 2019, 5 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 1.0 μg/m3 (1) 1.8 μg/m3 (8) 18.0
 
Dec. 4, 2019, 4 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 0.0 μg/m3 (0) 0.4 μg/m3 (2) 18.0
 
Dec. 4, 2019, 3 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 18.0
 
Dec. 4, 2019, 2 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 0.0 μg/m3 (0) 1.7 μg/m3 (7) 18.0
 
Dec. 4, 2019, 1 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 0.0 μg/m3 (0) 0.7 μg/m3 (3) 18.0
 
Dec. 4, 2019, midnight 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 0.0 μg/m3 (0) 1.0 μg/m3 (4) 19.0
 
Dec. 3, 2019, 11 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 0.0 μg/m3 (0) 0.9 μg/m3 (4) 20.0
 
Dec. 3, 2019, 10 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 0.0 μg/m3 (0) -0.8 μg/m3 (0) 22.0
 
Dec. 3, 2019, 9 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 30.0 ppb (23) N/A -1.0 μg/m3 (0) 1.7 μg/m3 (7) 23.0
 
Dec. 3, 2019, 8 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 31.0 ppb (24) N/A -2.0 μg/m3 (0) 4.0 μg/m3 (17) 24.0
 
Dec. 3, 2019, 7 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 30.0 ppb (23) N/A -2.0 μg/m3 (0) 3.4 μg/m3 (14) 23.0
 
Dec. 3, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A
Dec. 3, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Dec. 3, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 4.0 μg/m3 (4) 2.3 μg/m3 (10) 20.0
 
Dec. 3, 2019, 3 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 4.0 μg/m3 (4) 1.7 μg/m3 (7) 18.0
 
Dec. 3, 2019, 2 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 3.0 μg/m3 (3) 1.5 μg/m3 (6) 18.0
 
Dec. 3, 2019, 1 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 4.0 μg/m3 (4) 1.3 μg/m3 (5) 18.0
 
Dec. 3, 2019, noon 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 3.0 μg/m3 (3) 1.4 μg/m3 (6) 19.0
 
Dec. 3, 2019, 11 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 3.0 μg/m3 (3) 0.3 μg/m3 (1) 19.0
 
Dec. 3, 2019, 10 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 3.0 μg/m3 (3) 0.2 μg/m3 (1) 18.0
 
Dec. 3, 2019, 9 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 3.0 μg/m3 (3) 0.9 μg/m3 (4) 18.0
 
Dec. 3, 2019, 8 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 4.0 μg/m3 (4) 2.2 μg/m3 (9) 18.0
 
Dec. 3, 2019, 7 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 3.0 μg/m3 (3) 3.4 μg/m3 (14) 19.0
 
Dec. 3, 2019, 6 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 3.0 μg/m3 (3) 1.9 μg/m3 (8) 18.0
 
Dec. 3, 2019, 5 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 3.0 μg/m3 (3) 0.3 μg/m3 (1) 20.0
 
Dec. 3, 2019, 4 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 3.0 μg/m3 (3) -0.3 μg/m3 (0) 20.0
 
Dec. 3, 2019, 3 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 3.0 μg/m3 (3) 1.3 μg/m3 (5) 20.0
 
Dec. 3, 2019, 2 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 3.0 μg/m3 (3) 2.1 μg/m3 (9) 20.0
 
Dec. 3, 2019, 1 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 2.0 μg/m3 (2) 0.4 μg/m3 (2) 20.0
 
Dec. 3, 2019, midnight 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 3.0 μg/m3 (3) 1.3 μg/m3 (5) 20.0
 
Dec. 2, 2019, 11 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 4.0 μg/m3 (4) 3.4 μg/m3 (14) 21.0
 
Dec. 2, 2019, 10 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 4.0 μg/m3 (4) 2.7 μg/m3 (11) 22.0
 
Dec. 2, 2019, 9 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 4.0 μg/m3 (4) -1.4 μg/m3 (0) 24.0
 
Dec. 2, 2019, 8 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 3.0 μg/m3 (3) 0.2 μg/m3 (1) 24.0
 
Dec. 2, 2019, 7 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 4.0 μg/m3 (4) 1.7 μg/m3 (7) 24.0
 
Dec. 2, 2019, 6 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 4.0 μg/m3 (4) 0.6 μg/m3 (2) 22.0
 
Dec. 2, 2019, 5 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 4.0 μg/m3 (4) 0.5 μg/m3 (2) 22.0
 
Dec. 2, 2019, 4 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 4.0 μg/m3 (4) 2.7 μg/m3 (11) 23.0
 
Dec. 2, 2019, 3 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 4.0 μg/m3 (4) 5.0 μg/m3 (21) 23.0
 
Dec. 2, 2019, 2 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 3.0 μg/m3 (3) 3.7 μg/m3 (15) 22.0
 
Dec. 2, 2019, 1 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 3.0 μg/m3 (3) 2.6 μg/m3 (11) 22.0
 
Dec. 2, 2019, noon 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 4.0 μg/m3 (4) 0.8 μg/m3 (3) 22.0
 
Dec. 2, 2019, 11 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 3.0 μg/m3 (3) 1.7 μg/m3 (7) 20.0
 
Dec. 2, 2019, 10 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 3.0 μg/m3 (3) 6.3 μg/m3 (26) 26.0
 
Dec. 2, 2019, 9 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 4.0 μg/m3 (4) 10.5 μg/m3 (44) 44.0
 
Dec. 2, 2019, 8 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 7.0 μg/m3 (6) 5.4 μg/m3 (23) 23.0
 
Dec. 2, 2019, 7 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 7.0 μg/m3 (6) 2.7 μg/m3 (11) 21.0
 
Dec. 2, 2019, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 3.0 μg/m3 (3) 4.9 μg/m3 (20) 22.0
 
Dec. 2, 2019, 5 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 3.0 μg/m3 (3) 3.9 μg/m3 (16) 22.0
 
Dec. 2, 2019, 4 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 21.0
 
Dec. 2, 2019, 3 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 3.0 μg/m3 (3) 3.8 μg/m3 (16) 22.0
 
Dec. 2, 2019, 2 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 4.0 μg/m3 (4) 3.1 μg/m3 (13) 20.0
 
Dec. 2, 2019, 1 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 8.0 μg/m3 (7) 0.7 μg/m3 (3) 17.0
 
Dec. 2, 2019, midnight 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 2.0 μg/m3 (2) 0.5 μg/m3 (2) 18.0
 
Dec. 1, 2019, 11 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 2.0 μg/m3 (2) -1.9 μg/m3 (0) 18.0
 
Dec. 1, 2019, 10 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 4.0 μg/m3 (4) 2.0 μg/m3 (8) 17.0
 
Dec. 1, 2019, 9 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 5.0 μg/m3 (5) 5.8 μg/m3 (24) 24.0
 
Dec. 1, 2019, 8 p.m. 2.0 ppb (2) 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) 7.8 μg/m3 (32) 32.0
 
Dec. 1, 2019, 7 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 19.0 ppb (15) N/A 4.0 μg/m3 (4) 5.8 μg/m3 (24) 24.0
 
Dec. 1, 2019, 6 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 19.0 ppb (15) N/A 5.0 μg/m3 (5) 5.9 μg/m3 (25) 25.0
 
Dec. 1, 2019, 5 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 3.0 ppb (4) 18.0 ppb (14) N/A 4.0 μg/m3 (4) 2.9 μg/m3 (12) 14.0
 
Dec. 1, 2019, 4 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 20.0 ppb (15) N/A 5.0 μg/m3 (5) 1.3 μg/m3 (5) 15.0
 
Dec. 1, 2019, 3 p.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 5.0 μg/m3 (5) 2.2 μg/m3 (9) 18.0
 
Dec. 1, 2019, 2 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 22.0 ppb (17) N/A 5.0 μg/m3 (5) 1.8 μg/m3 (8) 17.0
 
Dec. 1, 2019, 1 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 22.0 ppb (17) N/A 4.0 μg/m3 (4) 0.8 μg/m3 (3) 17.0
 
Dec. 1, 2019, noon 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 4.0 μg/m3 (4) 1.6 μg/m3 (7) 17.0
 
Dec. 1, 2019, 11 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 4.0 μg/m3 (4) 3.1 μg/m3 (13) 18.0
 
Dec. 1, 2019, 10 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 3.0 μg/m3 (3) 2.1 μg/m3 (9) 17.0
 
Dec. 1, 2019, 9 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 3.0 μg/m3 (3) 1.1 μg/m3 (5) 18.0
 
Dec. 1, 2019, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 4.0 μg/m3 (4) 1.2 μg/m3 (5) 18.0
 
Dec. 1, 2019, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 3.0 μg/m3 (3) 1.6 μg/m3 (7) 18.0
 
Dec. 1, 2019, 6 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 3.0 μg/m3 (3) 0.9 μg/m3 (4) 17.0
 
Dec. 1, 2019, 5 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 4.0 μg/m3 (4) 0.8 μg/m3 (3) 18.0
 
Dec. 1, 2019, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 4.0 μg/m3 (4) 1.9 μg/m3 (8) 18.0
 
Dec. 1, 2019, 3 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 4.0 μg/m3 (4) 3.3 μg/m3 (14) 17.0
 
Dec. 1, 2019, 2 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 4.0 μg/m3 (4) 5.1 μg/m3 (21) 21.0
 
Dec. 1, 2019, 1 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 4.0 μg/m3 (4) 4.3 μg/m3 (18) 18.0
 
Dec. 1, 2019, midnight 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 4.0 μg/m3 (4) 1.9 μg/m3 (8) 18.0
 
Nov. 30, 2019, 11 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 4.0 μg/m3 (4) 0.9 μg/m3 (4) 18.0
 
Nov. 30, 2019, 10 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 21.0 ppb (16) N/A 4.0 μg/m3 (4) 2.1 μg/m3 (9) 16.0
 
Nov. 30, 2019, 9 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 21.0 ppb (16) N/A 4.0 μg/m3 (4) 3.0 μg/m3 (12) 16.0
 
Nov. 30, 2019, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 3.0 μg/m3 (3) 1.7 μg/m3 (7) 18.0
 
Nov. 30, 2019, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 2.0 μg/m3 (2) 0.3 μg/m3 (1) 18.0
 
Nov. 30, 2019, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 3.0 μg/m3 (3) 0.0 μg/m3 (0) 17.0
 
Nov. 30, 2019, 5 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 3.0 μg/m3 (3) 0.5 μg/m3 (2) 17.0
 
Nov. 30, 2019, 4 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 3.0 μg/m3 (3) 1.8 μg/m3 (8) 18.0
 
Nov. 30, 2019, 3 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 3.0 μg/m3 (3) 2.3 μg/m3 (10) 17.0
 
Nov. 30, 2019, 2 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 3.0 μg/m3 (3) 0.8 μg/m3 (3) 17.0