AQSQID: 460990008

Site Name: Sioux Falls

Location: Sioux Falls, SD

Reporting: True, Located: True

Current AQI: 19.0

Sioux Falls SD, US: 43.54792, -96.700768

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Nov. 12, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A 7.0 μg/m3 (6) 4.6 μg/m3 (19) 19.0
 
Nov. 12, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 8.0 μg/m3 (7) 5.4 μg/m3 (23) 23.0
 
Nov. 12, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 7.0 μg/m3 (6) 4.4 μg/m3 (18) 18.0
 
Nov. 12, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 7.0 μg/m3 (6) 2.7 μg/m3 (11) 14.0
 
Nov. 12, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 10.0 μg/m3 (9) 3.4 μg/m3 (14) 14.0
 
Nov. 12, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 14.0 μg/m3 (13) 4.9 μg/m3 (20) 20.0
 
Nov. 12, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 12.0 μg/m3 (11) 6.1 μg/m3 (25) 25.0
 
Nov. 12, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 10.0 μg/m3 (9) 6.3 μg/m3 (26) 26.0
 
Nov. 12, 2019, midnight N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 15.0 μg/m3 (14) 1.5 μg/m3 (6) 22.0
 
Nov. 11, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 12.0 μg/m3 (11) 2.9 μg/m3 (12) 23.0
 
Nov. 11, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 18.0 μg/m3 (16) 4.9 μg/m3 (20) 24.0
 
Nov. 11, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 18.0 μg/m3 (16) 4.6 μg/m3 (19) 25.0
 
Nov. 11, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 21.0 μg/m3 (19) 4.4 μg/m3 (18) 25.0
 
Nov. 11, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 16.0 μg/m3 (15) 2.7 μg/m3 (11) 25.0
 
Nov. 11, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 15.0 μg/m3 (14) 3.4 μg/m3 (14) 26.0
 
Nov. 11, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 14.0 μg/m3 (13) 1.2 μg/m3 (5) 25.0
 
Nov. 11, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 17.0 μg/m3 (15) -1.5 μg/m3 (0) 24.0
 
Nov. 11, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 11.0 μg/m3 (10) 0.8 μg/m3 (3) 24.0
 
Nov. 11, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 11.0 μg/m3 (10) 0.1 μg/m3 (0) 24.0
 
Nov. 11, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 28.0 μg/m3 (25) 0.8 μg/m3 (3) 25.0
 
Nov. 11, 2019, noon N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 4.0 μg/m3 (4) 2.7 μg/m3 (11) 20.0
 
Nov. 11, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 4.0 μg/m3 (4) 0.0 μg/m3 (0) 22.0
 
Nov. 11, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 3.0 μg/m3 (3) 1.0 μg/m3 (4) 23.0
 
Nov. 11, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A -5.0 μg/m3 (0) 0.5 μg/m3 (2) 22.0
 
Nov. 11, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 16.0 μg/m3 (15) 0.5 μg/m3 (2) 22.0
 
Nov. 11, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 25.0 μg/m3 (23) 1.0 μg/m3 (4) 23.0
 
Nov. 11, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 2.0 μg/m3 (2) 0.3 μg/m3 (1) 24.0
 
Nov. 11, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 4.0 μg/m3 (4) 0.3 μg/m3 (1) 23.0
 
Nov. 11, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 6.0 μg/m3 (5) -0.3 μg/m3 (0) 23.0
 
Nov. 11, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 9.0 μg/m3 (8) 0.3 μg/m3 (1) 24.0
 
Nov. 11, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 12.0 μg/m3 (11) 1.2 μg/m3 (5) 25.0
 
Nov. 11, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 18.0 μg/m3 (16) 2.5 μg/m3 (10) 25.0
 
Nov. 11, 2019, midnight N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 40.0 μg/m3 (36) 2.5 μg/m3 (10) 36.0
 
Nov. 10, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 10.0 μg/m3 (9) 1.0 μg/m3 (4) 22.0
 
Nov. 10, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 8.0 μg/m3 (7) 2.4 μg/m3 (10) 22.0
 
Nov. 10, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 10.0 μg/m3 (9) 5.4 μg/m3 (23) 23.0
 
Nov. 10, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 21.0 μg/m3 (19) 3.4 μg/m3 (14) 21.0
 
Nov. 10, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 8.0 μg/m3 (7) 2.7 μg/m3 (11) 20.0
 
Nov. 10, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 6.0 μg/m3 (5) 1.0 μg/m3 (4) 19.0
 
Nov. 10, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 9.0 μg/m3 (8) 2.9 μg/m3 (12) 19.0
 
Nov. 10, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 9.0 μg/m3 (8) 3.2 μg/m3 (13) 21.0
 
Nov. 10, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 3.0 μg/m3 (3) 3.4 μg/m3 (14) 22.0
 
Nov. 10, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 6.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
Nov. 10, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 11.0 μg/m3 (10) 9.7 μg/m3 (40) 40.0
 
Nov. 10, 2019, noon N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 15.0 μg/m3 (14) 6.5 μg/m3 (27) 27.0
 
Nov. 10, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 9.0 μg/m3 (8) 7.5 μg/m3 (31) 31.0
 
Nov. 10, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 6.0 μg/m3 (5) 4.9 μg/m3 (20) 20.0
 
Nov. 10, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 6.0 μg/m3 (5) 3.4 μg/m3 (14) 18.0
 
Nov. 10, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 11.0 μg/m3 (10) 2.7 μg/m3 (11) 15.0
 
Nov. 10, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 17.0 μg/m3 (15) 5.4 μg/m3 (23) 23.0
 
Nov. 10, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 20.0 μg/m3 (18) 6.6 μg/m3 (28) 28.0
 
Nov. 10, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 17.0 μg/m3 (15) 7.5 μg/m3 (31) 31.0
 
Nov. 10, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 14.0 μg/m3 (13) 6.5 μg/m3 (27) 27.0
 
Nov. 10, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 8.0 μg/m3 (7) 2.0 μg/m3 (8) 12.0
 
Nov. 10, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 10.0 μg/m3 (9) 2.7 μg/m3 (11) 15.0
 
Nov. 10, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 9.0 μg/m3 (8) 4.7 μg/m3 (20) 20.0
 
Nov. 10, 2019, midnight N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 12.0 μg/m3 (11) 8.0 μg/m3 (33) 33.0
 
Nov. 9, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 19.0 μg/m3 (17) 9.7 μg/m3 (40) 40.0
 
Nov. 9, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 16.0 μg/m3 (15) 9.2 μg/m3 (38) 38.0
 
Nov. 9, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 10.0 μg/m3 (9) -0.3 μg/m3 (0) 27.0
 
Nov. 9, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 11.0 μg/m3 (10) 1.5 μg/m3 (6) 27.0
 
Nov. 9, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 11.0 μg/m3 (10) 2.5 μg/m3 (10) 25.0
 
Nov. 9, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 14.0 μg/m3 (13) 2.0 μg/m3 (8) 22.0
 
Nov. 9, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 15.0 μg/m3 (14) 0.6 μg/m3 (2) 19.0
 
Nov. 9, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 13.0 μg/m3 (12) 2.0 μg/m3 (8) 16.0
 
Nov. 9, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 10.0 μg/m3 (9) 2.5 μg/m3 (10) 12.0
 
Nov. 9, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 3.0 μg/m3 (3) 2.7 μg/m3 (11) 11.0
 
Nov. 9, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 3.0 μg/m3 (3) 1.0 μg/m3 (4) 10.0
 
Nov. 9, 2019, noon N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 7.0 μg/m3 (6) 0.0 μg/m3 (0) 13.0
 
Nov. 9, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 29.0 μg/m3 (26) 2.0 μg/m3 (8) 26.0
 
Nov. 9, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 4.4 μg/m3 (18) 18.0
 
Nov. 9, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A -1.0 μg/m3 (0) 5.8 μg/m3 (24) 24.0
 
Nov. 9, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 7.0 μg/m3 (6) 2.7 μg/m3 (11) 18.0
 
Nov. 9, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 13.0 μg/m3 (12) 1.0 μg/m3 (4) 16.0
 
Nov. 9, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 15.0 μg/m3 (14) 3.7 μg/m3 (15) 16.0
 
Nov. 9, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 32.0 μg/m3 (29) 6.8 μg/m3 (28) 29.0
 
Nov. 9, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 37.0 μg/m3 (34) 5.8 μg/m3 (24) 34.0
 
Nov. 9, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 37.0 μg/m3 (34) 6.8 μg/m3 (28) 34.0
 
Nov. 9, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 33.0 μg/m3 (30) 8.5 μg/m3 (35) 35.0
 
Nov. 9, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A 26.0 μg/m3 (24) 5.4 μg/m3 (23) 24.0
 
Nov. 9, 2019, midnight N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A 37.0 μg/m3 (34) 3.2 μg/m3 (13) 34.0
 
Nov. 8, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 31.0 μg/m3 (28) 5.1 μg/m3 (21) 28.0
 
Nov. 8, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 24.0 μg/m3 (22) 4.9 μg/m3 (20) 22.0
 
Nov. 8, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 33.0 μg/m3 (30) 5.4 μg/m3 (23) 30.0
 
Nov. 8, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 37.0 μg/m3 (34) 5.1 μg/m3 (21) 34.0
 
Nov. 8, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 35.0 μg/m3 (32) 1.3 μg/m3 (5) 32.0
 
Nov. 8, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 38.0 μg/m3 (35) 2.9 μg/m3 (12) 35.0
 
Nov. 8, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 29.0 μg/m3 (26) 4.4 μg/m3 (18) 26.0
 
Nov. 8, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 23.0 μg/m3 (21) 2.5 μg/m3 (10) 21.0
 
Nov. 8, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 20.0 μg/m3 (18) 3.9 μg/m3 (16) 18.0
 
Nov. 8, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 29.0 μg/m3 (26) 4.2 μg/m3 (18) 26.0
 
Nov. 8, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 28.0 μg/m3 (25) 5.1 μg/m3 (21) 25.0
 
Nov. 8, 2019, noon N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 23.0 μg/m3 (21) 7.0 μg/m3 (29) 29.0
 
Nov. 8, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 28.0 μg/m3 (25) 5.8 μg/m3 (24) 25.0
 
Nov. 8, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 23.0 μg/m3 (21) 5.1 μg/m3 (21) 21.0
 
Nov. 8, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 24.0 μg/m3 (22) 3.4 μg/m3 (14) 22.0
 
Nov. 8, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 26.0 μg/m3 (24) 3.4 μg/m3 (14) 24.0
 
Nov. 8, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 27.0 μg/m3 (25) 4.9 μg/m3 (20) 25.0
 
Nov. 8, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 27.0 μg/m3 (25) 3.4 μg/m3 (14) 25.0
 
Nov. 8, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 22.0 μg/m3 (20) 3.4 μg/m3 (14) 20.0
 
Nov. 8, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 19.0 μg/m3 (17) 4.6 μg/m3 (19) 19.0
 
Nov. 8, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 23.0 μg/m3 (21) 4.7 μg/m3 (20) 21.0
 
Nov. 8, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 16.0 μg/m3 (15) 0.8 μg/m3 (3) 18.0
 
Nov. 8, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 13.0 μg/m3 (12) 0.1 μg/m3 (0) 19.0
 
Nov. 8, 2019, midnight N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 16.0 μg/m3 (15) 2.5 μg/m3 (10) 18.0
 
Nov. 7, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 21.0 μg/m3 (19) 6.3 μg/m3 (26) 26.0
 
Nov. 7, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 14.0 μg/m3 (13) 3.7 μg/m3 (15) 22.0
 
Nov. 7, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 23.0
 
Nov. 7, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 6.0 μg/m3 (5) 4.9 μg/m3 (20) 24.0
 
Nov. 7, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 7.0 μg/m3 (6) 1.3 μg/m3 (5) 24.0
 
Nov. 7, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 8.0 μg/m3 (7) -0.5 μg/m3 (0) 23.0
 
Nov. 7, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 12.0 μg/m3 (11) -1.8 μg/m3 (0) 24.0
 
Nov. 7, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 13.0 μg/m3 (12) -2.5 μg/m3 (0) 22.0
 
Nov. 7, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 15.0 μg/m3 (14) -1.3 μg/m3 (0) 18.0
 
Nov. 7, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 20.0 μg/m3 (18) 2.5 μg/m3 (10) 18.0
 
Nov. 7, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 10.0 μg/m3 (9) 3.2 μg/m3 (13) 13.0
 
Nov. 7, 2019, noon N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A 7.0 μg/m3 (6) 2.9 μg/m3 (12) 12.0
 
Nov. 7, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A 5.0 μg/m3 (5) 2.4 μg/m3 (10) 10.0
 
Nov. 7, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 6.0 μg/m3 (5) 2.2 μg/m3 (9) 9.0
 
Nov. 7, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 9.0 μg/m3 (8) 1.0 μg/m3 (4) 12.0
 
Nov. 7, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 7.0 μg/m3 (6) 0.3 μg/m3 (1) 16.0
 
Nov. 7, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 5.0 μg/m3 (5) 1.0 μg/m3 (4) 13.0
 
Nov. 7, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 6.0 μg/m3 (5) 3.4 μg/m3 (14) 14.0
 
Nov. 7, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 10.0 μg/m3 (9) 2.9 μg/m3 (12) 17.0
 
Nov. 7, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 5.0 μg/m3 (5) 1.5 μg/m3 (6) 18.0
 
Nov. 7, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 5.0 μg/m3 (5) 1.0 μg/m3 (4) 20.0
 
Nov. 7, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 9.0 μg/m3 (8) -1.0 μg/m3 (0) 20.0
 
Nov. 7, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 9.0 μg/m3 (8) -0.5 μg/m3 (0) 21.0
 
Nov. 7, 2019, midnight N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 7.0 μg/m3 (6) 1.7 μg/m3 (7) 22.0
 
Nov. 6, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 6.0 μg/m3 (5) 2.7 μg/m3 (11) 22.0
 
Nov. 6, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 7.0 μg/m3 (6) 3.2 μg/m3 (13) 22.0
 
Nov. 6, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 8.0 μg/m3 (7) 5.1 μg/m3 (21) 22.0
 
Nov. 6, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 15.0 μg/m3 (14) 3.9 μg/m3 (16) 22.0
 
Nov. 6, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 26.0 μg/m3 (24) 3.9 μg/m3 (16) 24.0
 
Nov. 6, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 17.0 μg/m3 (15) 3.7 μg/m3 (15) 22.0
 
Nov. 6, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 17.0 μg/m3 (15) 5.8 μg/m3 (24) 24.0
 
Nov. 6, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 26.0 μg/m3 (24) 6.8 μg/m3 (28) 28.0
 
Nov. 6, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 18.0 μg/m3 (16) 5.6 μg/m3 (23) 23.0
 
Nov. 6, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 7.0 μg/m3 (6) 4.9 μg/m3 (20) 20.0
 
Nov. 6, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 5.0 μg/m3 (5) 4.4 μg/m3 (18) 18.0
 
Nov. 6, 2019, noon N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 4.0 μg/m3 (4) 3.7 μg/m3 (15) 15.0
 
Nov. 6, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 5.0 μg/m3 (5) 4.6 μg/m3 (19) 19.0
 
Nov. 6, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 7.0 μg/m3 (6) 4.4 μg/m3 (18) 18.0
 
Nov. 6, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 5.0 μg/m3 (5) 2.2 μg/m3 (9) 15.0
 
Nov. 6, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 5.0 μg/m3 (5) 0.5 μg/m3 (2) 15.0
 
Nov. 6, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 4.0 μg/m3 (4) 3.2 μg/m3 (13) 14.0
 
Nov. 6, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 7.0 μg/m3 (6) 4.4 μg/m3 (18) 18.0
 
Nov. 6, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 11.0 μg/m3 (10) 2.2 μg/m3 (9) 13.0
 
Nov. 6, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 14.0 μg/m3 (13) 4.9 μg/m3 (20) 20.0
 
Nov. 6, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 15.0 μg/m3 (14) 4.2 μg/m3 (18) 18.0
 
Nov. 6, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 22.0 μg/m3 (20) 3.7 μg/m3 (15) 20.0
 
Nov. 6, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 23.0 μg/m3 (21) 4.6 μg/m3 (19) 21.0
 
Nov. 6, 2019, midnight N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 27.0 μg/m3 (25) 4.6 μg/m3 (19) 25.0
 
Nov. 5, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 25.0 μg/m3 (23) 6.3 μg/m3 (26) 26.0
 
Nov. 5, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 14.0 μg/m3 (13) 4.6 μg/m3 (19) 19.0
 
Nov. 5, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 18.0 μg/m3 (16) 4.9 μg/m3 (20) 20.0
 
Nov. 5, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 10.0 μg/m3 (9) 3.7 μg/m3 (15) 19.0
 
Nov. 5, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 9.0 μg/m3 (8) 3.2 μg/m3 (13) 21.0
 
Nov. 5, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 9.0 μg/m3 (8) 4.2 μg/m3 (18) 22.0
 
Nov. 5, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 13.0 μg/m3 (12) 5.8 μg/m3 (24) 24.0
 
Nov. 5, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 23.0 μg/m3 (21) 4.6 μg/m3 (19) 21.0
 
Nov. 5, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 38.0 μg/m3 (35) 4.4 μg/m3 (18) 35.0
 
Nov. 5, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 5.0 μg/m3 (5) 4.4 μg/m3 (18) 18.0
 
Nov. 5, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A 6.0 μg/m3 (5) 4.9 μg/m3 (20) 20.0
 
Nov. 5, 2019, noon N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 2.0 μg/m3 (2) 1.2 μg/m3 (5) 10.0
 
Nov. 5, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 3.0 μg/m3 (3) 0.0 μg/m3 (0) 15.0
 
Nov. 5, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 3.0 μg/m3 (3) 1.7 μg/m3 (7) 18.0
 
Nov. 5, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 3.0 μg/m3 (3) 0.5 μg/m3 (2) 14.0