AQSQID: 460990008

Site Name: Sioux Falls

Location: Sioux Falls (E 8th St), SD

Reporting: True, Located: True

Current AQI: 23.0

Sioux Falls (E 8th St) SD, US: 43.54792, -96.700768

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 9, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 14.0 μg/m3 (13) N/A 23.0
 
April 9, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 11.0 μg/m3 (10) N/A 25.0
 
April 9, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 11.0 μg/m3 (10) N/A 25.0
 
April 9, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 15.0 μg/m3 (14) N/A 25.0
 
April 9, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 17.0 μg/m3 (15) N/A 24.0
 
April 9, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 21.0 μg/m3 (19) N/A 25.0
 
April 9, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 12.0 μg/m3 (11) N/A 26.0
 
April 9, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 10.0 μg/m3 (9) N/A 28.0
 
April 9, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 9.0 μg/m3 (8) N/A 28.0
 
April 9, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 15.0 μg/m3 (14) N/A 29.0
 
April 9, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 9.0 μg/m3 (8) N/A 30.0
 
April 9, 2020, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 11.0 μg/m3 (10) N/A 33.0
 
April 8, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 12.0 μg/m3 (11) N/A 35.0
 
April 8, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 11.0 μg/m3 (10) N/A 35.0
 
April 8, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 31.0 μg/m3 (28) N/A 35.0
 
April 8, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 25.0 μg/m3 (23) N/A 35.0
 
April 8, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 25.0 μg/m3 (23) N/A 35.0
 
April 8, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A N/A 35.0
 
April 8, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 6.6 μg/m3 (28) 28.0
 
April 8, 2020, 3 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) 5.6 μg/m3 (23) 23.0
 
April 8, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 14.0 μg/m3 (13) 20.4 μg/m3 (68) 68.0
 
April 8, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 12.0 μg/m3 (11) 0.5 μg/m3 (2) 15.0
 
April 8, 2020, noon N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 12.0 μg/m3 (11) 7.5 μg/m3 (31) 31.0
 
April 8, 2020, 11 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) 11.1 μg/m3 (46) 46.0
 
April 8, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 15.0 μg/m3 (14) 21.9 μg/m3 (71) 71.0
 
April 8, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 18.0 μg/m3 (16) 11.4 μg/m3 (48) 48.0
 
April 8, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A 27.0 μg/m3 (25) 12.8 μg/m3 (52) 52.0
 
April 8, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 54.0 μg/m3 (49) 46.4 μg/m3 (127) 127.0
 
April 8, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 39.0 μg/m3 (35) 22.9 μg/m3 (73) 73.0
 
April 8, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 38.0 μg/m3 (35) 13.1 μg/m3 (52) 52.0
 
April 8, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 34.0 μg/m3 (31) 31.4 μg/m3 (91) 91.0
 
April 8, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 43.0 μg/m3 (39) 21.7 μg/m3 (71) 71.0
 
April 8, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 47.0 μg/m3 (43) 17.3 μg/m3 (61) 61.0
 
April 8, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 23.0 μg/m3 (21) 12.6 μg/m3 (51) 51.0
 
April 8, 2020, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 11.0 μg/m3 (10) 2.9 μg/m3 (12) 27.0
 
April 7, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 9.0 μg/m3 (8) 4.4 μg/m3 (18) 29.0
 
April 7, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 16.0 μg/m3 (15) 7.5 μg/m3 (31) 32.0
 
April 7, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 11.0 μg/m3 (10) 1.8 μg/m3 (8) 28.0
 
April 7, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 19.0 μg/m3 (17) 0.6 μg/m3 (2) 28.0
 
April 7, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 10.0 μg/m3 (9) 3.5 μg/m3 (15) 28.0
 
April 7, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 14.0 μg/m3 (13) 3.7 μg/m3 (15) 27.0
 
April 7, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 24.0 μg/m3 (22) 2.5 μg/m3 (10) 25.0
 
April 7, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 27.0 μg/m3 (25) 5.9 μg/m3 (25) 25.0
 
April 7, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 24.0 μg/m3 (22) 8.7 μg/m3 (36) 36.0
 
April 7, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 26.0 μg/m3 (24) 12.8 μg/m3 (52) 52.0
 
April 7, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 18.0 μg/m3 (16) 15.0 μg/m3 (56) 56.0
 
April 7, 2020, noon N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 16.0 μg/m3 (15) 12.8 μg/m3 (52) 52.0
 
April 7, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 14.0 μg/m3 (13) 9.7 μg/m3 (40) 40.0
 
April 7, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 12.0 μg/m3 (11) 8.0 μg/m3 (33) 33.0
 
April 7, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 18.0 μg/m3 (16) 8.0 μg/m3 (33) 33.0
 
April 7, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 14.0 μg/m3 (13) 12.6 μg/m3 (51) 51.0
 
April 7, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 14.0 μg/m3 (13) 12.3 μg/m3 (51) 51.0
 
April 7, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 18.0 μg/m3 (16) 11.8 μg/m3 (49) 49.0
 
April 7, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 18.0 μg/m3 (16) 12.1 μg/m3 (50) 50.0
 
April 7, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 18.0 μg/m3 (16) 8.2 μg/m3 (34) 34.0
 
April 7, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 19.0 μg/m3 (17) 9.0 μg/m3 (38) 38.0
 
April 7, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 25.0 μg/m3 (23) 9.0 μg/m3 (38) 38.0
 
April 7, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 19.0 μg/m3 (17) 11.4 μg/m3 (48) 48.0
 
April 7, 2020, midnight N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 19.0 μg/m3 (17) 12.1 μg/m3 (50) 50.0
 
April 6, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 21.0 μg/m3 (19) 12.3 μg/m3 (51) 51.0
 
April 6, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 17.0 μg/m3 (15) 10.5 μg/m3 (44) 44.0
 
April 6, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 21.0 μg/m3 (19) 9.7 μg/m3 (40) 40.0
 
April 6, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 25.0 μg/m3 (23) N/A 24.0
 
April 6, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 25.0 μg/m3 (23) N/A 23.0
 
April 6, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 29.0 μg/m3 (26) N/A 26.0
 
April 6, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 40.0 μg/m3 (36) N/A 36.0
 
April 6, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 33.0 μg/m3 (30) N/A 30.0
 
April 6, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 29.0 μg/m3 (26) N/A 26.0
 
April 6, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 21.0 μg/m3 (19) N/A 19.0
 
April 6, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 16.0 μg/m3 (15) N/A 15.0
 
April 6, 2020, noon N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 14.0 μg/m3 (13) N/A 13.0
 
April 6, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 15.0 μg/m3 (14) N/A 14.0
 
April 6, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 11.0 μg/m3 (10) N/A 12.0
 
April 6, 2020, 9 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) N/A 15.0
 
April 6, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 10.0 μg/m3 (9) N/A 16.0
 
April 6, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 18.0 μg/m3 (16) N/A 16.0
 
April 6, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 18.0 μg/m3 (16) N/A 18.0
 
April 6, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 19.0 μg/m3 (17) N/A 19.0
 
April 6, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 16.0 μg/m3 (15) N/A 20.0
 
April 6, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 17.0 μg/m3 (15) N/A 20.0
 
April 6, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 13.0 μg/m3 (12) N/A 22.0
 
April 6, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 21.0 μg/m3 (19) N/A 25.0
 
April 6, 2020, midnight N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 21.0 μg/m3 (19) N/A 28.0
 
April 5, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 14.0 μg/m3 (13) N/A 31.0
 
April 5, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 15.0 μg/m3 (14) N/A 30.0
 
April 5, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 12.0 μg/m3 (11) N/A 28.0
 
April 5, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 9.0 μg/m3 (8) N/A 28.0
 
April 5, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 12.0 μg/m3 (11) N/A 27.0
 
April 5, 2020, 6 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) N/A 25.0
 
April 5, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 10.0 μg/m3 (9) N/A 23.0
 
April 5, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 7.0 μg/m3 (6) N/A 21.0
 
April 5, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 12.0 μg/m3 (11) N/A 18.0
 
April 5, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 9.0 μg/m3 (8) N/A 16.0
 
April 5, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 10.0 μg/m3 (9) N/A 15.0
 
April 5, 2020, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 11.0 μg/m3 (10) N/A 16.0
 
April 5, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 5.0 μg/m3 (5) N/A 16.0
 
April 5, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 5.0 μg/m3 (5) N/A 17.0
 
April 5, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 6.0 μg/m3 (5) N/A 18.0
 
April 5, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 8.0 μg/m3 (7) N/A 18.0
 
April 5, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 15.0 μg/m3 (14) N/A 18.0
 
April 5, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 8.0 μg/m3 (7) N/A 19.0
 
April 5, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 15.0 μg/m3 (14) N/A 20.0
 
April 5, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 7.0 μg/m3 (6) N/A 20.0
 
April 5, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 7.0 μg/m3 (6) N/A 21.0
 
April 5, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 11.0 μg/m3 (10) N/A 22.0
 
April 5, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 7.0 μg/m3 (6) N/A 24.0
 
April 5, 2020, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 7.0 μg/m3 (6) N/A 26.0
 
April 4, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 9.0 μg/m3 (8) N/A 28.0
 
April 4, 2020, 10 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) N/A 27.0
 
April 4, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 9.0 μg/m3 (8) N/A 28.0
 
April 4, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 12.0 μg/m3 (11) N/A 27.0
 
April 4, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 10.0 μg/m3 (9) N/A 26.0
 
April 4, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 10.0 μg/m3 (9) N/A 25.0
 
April 4, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 10.0 μg/m3 (9) N/A 24.0
 
April 4, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 9.0 μg/m3 (8) N/A 22.0
 
April 4, 2020, 3 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) N/A 22.0
 
April 4, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 15.0 μg/m3 (14) N/A 20.0
 
April 4, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 8.0 μg/m3 (7) N/A 16.0
 
April 4, 2020, noon N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 7.0 μg/m3 (6) N/A 9.0
 
April 4, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 9.0 μg/m3 (8) N/A 8.0
 
April 4, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A 12.0 μg/m3 (11) N/A 11.0
 
April 4, 2020, 9 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) N/A 7.0
 
April 4, 2020, 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) N/A 6.0
 
April 4, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 4.0 μg/m3 (4) 6.1 μg/m3 (25) 25.0
 
April 4, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 6.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
April 4, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 8.0 μg/m3 (7) 6.1 μg/m3 (25) 25.0
 
April 4, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 8.0 μg/m3 (7) 7.2 μg/m3 (30) 30.0
 
April 4, 2020, 3 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) 5.8 μg/m3 (24) 24.0
 
April 4, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 4.0 μg/m3 (4) 4.4 μg/m3 (18) 20.0
 
April 4, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 5.0 μg/m3 (5) 6.1 μg/m3 (25) 25.0
 
April 4, 2020, midnight N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 5.0 μg/m3 (5) 4.4 μg/m3 (18) 23.0
 
April 3, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 5.0 μg/m3 (5) 4.9 μg/m3 (20) 22.0
 
April 3, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 6.0 μg/m3 (5) 3.9 μg/m3 (16) 21.0
 
April 3, 2020, 9 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
 
April 3, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 8.0 μg/m3 (7) 2.7 μg/m3 (11) 21.0
 
April 3, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 6.0 μg/m3 (5) 3.9 μg/m3 (16) 21.0
 
April 3, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 7.0 μg/m3 (6) 2.5 μg/m3 (10) 21.0
 
April 3, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 2.2 μg/m3 (9) 9.0
 
April 3, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 4.4 μg/m3 (18) 18.0
 
April 3, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 6.0 μg/m3 (5) 5.1 μg/m3 (21) 21.0
 
April 3, 2020, 2 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) 0.7 μg/m3 (3) 19.0
 
April 3, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 7.0 μg/m3 (6) 2.0 μg/m3 (8) 18.0
 
April 3, 2020, noon N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 5.0 μg/m3 (5) 2.7 μg/m3 (11) 18.0
 
April 3, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 5.0 μg/m3 (5) 3.6 μg/m3 (15) 18.0
 
April 3, 2020, 10 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) 5.8 μg/m3 (24) 24.0
 
April 3, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 9.0 μg/m3 (8) 8.2 μg/m3 (34) 34.0
 
April 3, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 8.0 μg/m3 (7) 7.5 μg/m3 (31) 31.0
 
April 3, 2020, 7 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) 7.5 μg/m3 (31) 31.0
 
April 3, 2020, 6 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) 4.6 μg/m3 (19) 19.0
 
April 3, 2020, 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) 2.7 μg/m3 (11) 17.0
 
April 3, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 29.0 μg/m3 (26) 2.7 μg/m3 (11) 26.0
 
April 3, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A -3.0 μg/m3 (0) 4.9 μg/m3 (20) 20.0
 
April 3, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 6.0 μg/m3 (5) 3.9 μg/m3 (16) 16.0
 
April 3, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 6.0 μg/m3 (5) 4.1 μg/m3 (17) 17.0
 
April 3, 2020, midnight N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 1.0 μg/m3 (1) 1.2 μg/m3 (5) 15.0
 
April 2, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 2.0 μg/m3 (2) 3.7 μg/m3 (15) 15.0
 
April 2, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 3.0 μg/m3 (3) 2.4 μg/m3 (10) 13.0
 
April 2, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 6.0 μg/m3 (5) 0.5 μg/m3 (2) 12.0
 
April 2, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 4.0 μg/m3 (4) 3.2 μg/m3 (13) 13.0
 
April 2, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 3.0 μg/m3 (3) -0.1 μg/m3 (0) 12.0
 
April 2, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 5.0 μg/m3 (5) -0.5 μg/m3 (0) 12.0
 
April 2, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 7.0 μg/m3 (6) -1.0 μg/m3 (0) 11.0
 
April 2, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 5.0 μg/m3 (5) 2.2 μg/m3 (9) 10.0
 
April 2, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 8.0 μg/m3 (7) 4.9 μg/m3 (20) 20.0
 
April 2, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 14.0 μg/m3 (13) 4.4 μg/m3 (18) 18.0
 
April 2, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 13.0 μg/m3 (12) 5.6 μg/m3 (23) 23.0
 
April 2, 2020, noon N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 7.0 μg/m3 (6) 5.1 μg/m3 (21) 21.0
 
April 2, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 7.0 μg/m3 (6) 5.8 μg/m3 (24) 24.0