ID: 1782

AQSQID: 460990008

Site Name: Sioux Falls

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

Updated: Sept. 26, 2020, 7:39 a.m.

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

Reporting: True, Located: True

Current AQI: 71.0

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
Sept. 26, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 75.4 μg/m3 (60) 21.9 μg/m3 (71) 71.0
 
Sept. 26, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 95.3 μg/m3 (70) 40.3 μg/m3 (112) 112.0
 
Sept. 26, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 85.4 μg/m3 (65) 25.8 μg/m3 (79) 79.0
 
Sept. 26, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A 85.9 μg/m3 (65) 22.7 μg/m3 (73) 73.0
 
Sept. 26, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 75.9 μg/m3 (60) 16.6 μg/m3 (60) 60.0
 
Sept. 26, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 77.4 μg/m3 (61) 11.7 μg/m3 (49) 61.0
 
Sept. 26, 2020, midnight N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 40.4 μg/m3 (37) 5.1 μg/m3 (21) 37.0
 
Sept. 25, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 43.0 μg/m3 (39) 4.2 μg/m3 (18) 39.0
 
Sept. 25, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 49.2 μg/m3 (45) 10.0 μg/m3 (42) 45.0
 
Sept. 25, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 59.6 μg/m3 (52) 19.0 μg/m3 (65) 65.0
 
Sept. 25, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 94.5 μg/m3 (70) 20.2 μg/m3 (67) 70.0
 
Sept. 25, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 21.2 μg/m3 (70) 70.0
 
Sept. 25, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 77.4 μg/m3 (61) -1.5 μg/m3 (0) 61.0
 
Sept. 25, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 54.6 μg/m3 (50) 14.8 μg/m3 (56) 56.0
 
Sept. 25, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 48.7 μg/m3 (44) 13.3 μg/m3 (53) 53.0
 
Sept. 25, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 47.8 μg/m3 (43) 11.4 μg/m3 (48) 48.0
 
Sept. 25, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 48.4 μg/m3 (44) 8.5 μg/m3 (35) 44.0
 
Sept. 25, 2020, noon N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 44.6 μg/m3 (41) 8.8 μg/m3 (37) 41.0
 
Sept. 25, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 48.4 μg/m3 (44) 15.8 μg/m3 (58) 58.0
 
Sept. 25, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 59.0 μg/m3 (52) 17.3 μg/m3 (61) 61.0
 
Sept. 25, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 53.1 μg/m3 (48) 24.1 μg/m3 (76) 76.0
 
Sept. 25, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 58.8 μg/m3 (52) 6.3 μg/m3 (26) 52.0
 
Sept. 25, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 87.8 μg/m3 (66) 11.9 μg/m3 (50) 66.0
 
Sept. 25, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 71.2 μg/m3 (58) 19.2 μg/m3 (65) 65.0
 
Sept. 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 95.0 μg/m3 (70) 18.5 μg/m3 (64) 70.0
 
Sept. 25, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 111.9 μg/m3 (78) 19.2 μg/m3 (65) 78.0
 
Sept. 25, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 82.2 μg/m3 (64) 31.2 μg/m3 (91) 91.0
 
Sept. 25, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 76.6 μg/m3 (61) 12.8 μg/m3 (52) 61.0
 
Sept. 25, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 45.0 μg/m3 (41) 17.3 μg/m3 (61) 61.0
 
Sept. 25, 2020, midnight N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 40.9 μg/m3 (37) 13.6 μg/m3 (53) 53.0
 
Sept. 24, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A 38.2 μg/m3 (35) 7.3 μg/m3 (30) 43.0
 
Sept. 24, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A 48.0 μg/m3 (44) 12.4 μg/m3 (51) 51.0
 
Sept. 24, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A 46.8 μg/m3 (43) 8.3 μg/m3 (35) 43.0
 
Sept. 24, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 43.4 μg/m3 (39) 9.7 μg/m3 (40) 40.0
 
Sept. 24, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 50.7 μg/m3 (46) 8.8 μg/m3 (37) 46.0
 
Sept. 24, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 46.5 μg/m3 (42) 8.5 μg/m3 (35) 42.0
 
Sept. 24, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 41.1 μg/m3 (37) 20.5 μg/m3 (68) 68.0
 
Sept. 24, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 33.3 μg/m3 (30) 3.5 μg/m3 (15) 30.0
 
Sept. 24, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 32.1 μg/m3 (29) 9.0 μg/m3 (38) 38.0
 
Sept. 24, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 49.4 μg/m3 (45) 14.6 μg/m3 (56) 56.0
 
Sept. 24, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 51.4 μg/m3 (47) 14.8 μg/m3 (56) 56.0
 
Sept. 24, 2020, noon N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 48.4 μg/m3 (44) 18.1 μg/m3 (63) 63.0
 
Sept. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 56.6 μg/m3 (51) 13.1 μg/m3 (52) 52.0
 
Sept. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 58.0 μg/m3 (52) 25.8 μg/m3 (79) 79.0
 
Sept. 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 60.0 μg/m3 (52) 11.6 μg/m3 (48) 52.0
 
Sept. 24, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 56.0 μg/m3 (50) 15.3 μg/m3 (57) 57.0
 
Sept. 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 58.0 μg/m3 (52) 6.3 μg/m3 (26) 52.0
 
Sept. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 47.0 μg/m3 (43) 11.9 μg/m3 (50) 50.0
 
Sept. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 52.0 μg/m3 (47) 8.0 μg/m3 (33) 47.0
 
Sept. 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 54.0 μg/m3 (49) 8.3 μg/m3 (35) 49.0
 
Sept. 24, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 59.0 μg/m3 (52) 13.8 μg/m3 (54) 54.0
 
Sept. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 68.0 μg/m3 (56) 30.9 μg/m3 (90) 90.0
 
Sept. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 67.0 μg/m3 (56) 10.9 μg/m3 (45) 56.0
 
Sept. 24, 2020, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 64.0 μg/m3 (54) 9.7 μg/m3 (40) 54.0
 
Sept. 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 51.0 μg/m3 (46) 10.7 μg/m3 (45) 46.0
 
Sept. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 51.0 μg/m3 (46) 10.5 μg/m3 (44) 46.0
 
Sept. 23, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 52.0 μg/m3 (47) 10.0 μg/m3 (42) 47.0
 
Sept. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 45.0 μg/m3 (41) 30.0 μg/m3 (88) 88.0
 
Sept. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 49.0 μg/m3 (45) 11.4 μg/m3 (48) 48.0
 
Sept. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 52.0 μg/m3 (47) 11.7 μg/m3 (49) 49.0
 
Sept. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 54.0 μg/m3 (49) 7.1 μg/m3 (30) 49.0
 
Sept. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 45.0 μg/m3 (41) 7.0 μg/m3 (29) 41.0
 
Sept. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 32.0 μg/m3 (29) 8.0 μg/m3 (33) 33.0
 
Sept. 23, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 30.0 μg/m3 (27) 8.5 μg/m3 (35) 35.0
 
Sept. 23, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 32.0 μg/m3 (29) 27.2 μg/m3 (82) 82.0
 
Sept. 23, 2020, noon N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 34.0 μg/m3 (31) 4.0 μg/m3 (17) 31.0
 
Sept. 23, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 30.0 μg/m3 (27) 11.1 μg/m3 (46) 46.0
 
Sept. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 62.0 μg/m3 (54) 12.1 μg/m3 (50) 54.0
 
Sept. 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 38.0 μg/m3 (35) 22.2 μg/m3 (72) 72.0
 
Sept. 23, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 39.0 μg/m3 (35) 11.9 μg/m3 (50) 50.0
 
Sept. 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 49.0 μg/m3 (45) 10.0 μg/m3 (42) 45.0
 
Sept. 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 43.0 μg/m3 (39) 11.9 μg/m3 (50) 50.0
 
Sept. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 47.0 μg/m3 (43) 10.7 μg/m3 (45) 45.0
 
Sept. 23, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 54.0 μg/m3 (49) 12.6 μg/m3 (51) 51.0
 
Sept. 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 65.0 μg/m3 (55) 12.6 μg/m3 (51) 55.0
 
Sept. 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 59.0 μg/m3 (52) 17.3 μg/m3 (61) 61.0
 
Sept. 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 63.0 μg/m3 (54) 13.8 μg/m3 (54) 54.0
 
Sept. 23, 2020, midnight N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 60.0 μg/m3 (52) 5.4 μg/m3 (23) 52.0
 
Sept. 22, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A 60.0 μg/m3 (52) 29.0 μg/m3 (86) 86.0
 
Sept. 22, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A 53.0 μg/m3 (48) 8.0 μg/m3 (33) 48.0
 
Sept. 22, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A 52.0 μg/m3 (47) 12.8 μg/m3 (52) 52.0
 
Sept. 22, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A 47.0 μg/m3 (43) 20.0 μg/m3 (67) 67.0
 
Sept. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 39.0 μg/m3 (35) 12.9 μg/m3 (52) 52.0
 
Sept. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 46.0 μg/m3 (42) 11.2 μg/m3 (47) 47.0
 
Sept. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 46.0 μg/m3 (42) 12.4 μg/m3 (51) 51.0
 
Sept. 22, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 41.0 μg/m3 (37) 14.6 μg/m3 (56) 56.0
 
Sept. 22, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 38.0 μg/m3 (35) 25.8 μg/m3 (79) 79.0
 
Sept. 22, 2020, 2 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) 4.7 μg/m3 (20) 35.0
 
Sept. 22, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 39.0 μg/m3 (35) 10.7 μg/m3 (45) 45.0
 
Sept. 22, 2020, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 31.0 μg/m3 (28) 9.5 μg/m3 (40) 40.0
 
Sept. 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 27.0 μg/m3 (25) 11.6 μg/m3 (48) 48.0
 
Sept. 22, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 32.0 μg/m3 (29) 9.2 μg/m3 (38) 38.0
 
Sept. 22, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 40.0 μg/m3 (36) 27.0 μg/m3 (82) 82.0
 
Sept. 22, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 42.0 μg/m3 (38) 9.7 μg/m3 (40) 40.0
 
Sept. 22, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 45.0 μg/m3 (41) 12.3 μg/m3 (51) 51.0
 
Sept. 22, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 47.0 μg/m3 (43) 12.8 μg/m3 (52) 52.0
 
Sept. 22, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 58.0 μg/m3 (52) 15.3 μg/m3 (57) 57.0
 
Sept. 22, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 61.0 μg/m3 (53) 15.6 μg/m3 (58) 58.0
 
Sept. 22, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 57.0 μg/m3 (51) 18.0 μg/m3 (63) 63.0
 
Sept. 22, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 63.0 μg/m3 (54) 22.7 μg/m3 (73) 73.0
 
Sept. 22, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 62.0 μg/m3 (54) 14.3 μg/m3 (55) 55.0
 
Sept. 22, 2020, midnight N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 48.0 μg/m3 (44) 13.6 μg/m3 (53) 53.0
 
Sept. 21, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 46.0 μg/m3 (42) 1.8 μg/m3 (8) 42.0
 
Sept. 21, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 41.0 μg/m3 (37) 18.5 μg/m3 (64) 64.0
 
Sept. 21, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 59.0 μg/m3 (52) 16.3 μg/m3 (59) 59.0
 
Sept. 21, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 58.0 μg/m3 (52) 15.1 μg/m3 (57) 57.0
 
Sept. 21, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 48.0 μg/m3 (44) 17.3 μg/m3 (61) 61.0
 
Sept. 21, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 45.0 μg/m3 (41) 20.0 μg/m3 (67) 67.0
 
Sept. 21, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 48.0 μg/m3 (44) 12.8 μg/m3 (52) 52.0
 
Sept. 21, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 47.0 μg/m3 (43) 26.5 μg/m3 (81) 81.0
 
Sept. 21, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 36.0 μg/m3 (33) 2.0 μg/m3 (8) 33.0
 
Sept. 21, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 31.0 μg/m3 (28) 15.1 μg/m3 (57) 57.0
 
Sept. 21, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 51.0 μg/m3 (46) 28.7 μg/m3 (86) 86.0
 
Sept. 21, 2020, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 26.0 μg/m3 (24) 7.1 μg/m3 (30) 30.0
 
Sept. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 24.0 μg/m3 (22) 6.3 μg/m3 (26) 26.0
 
Sept. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 30.0 μg/m3 (27) 13.4 μg/m3 (53) 53.0
 
Sept. 21, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 30.0 μg/m3 (27) 27.2 μg/m3 (82) 82.0
 
Sept. 21, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 32.0 μg/m3 (29) 17.8 μg/m3 (62) 62.0
 
Sept. 21, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 34.0 μg/m3 (31) 14.8 μg/m3 (56) 56.0
 
Sept. 21, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 32.0 μg/m3 (29) 18.8 μg/m3 (64) 64.0
 
Sept. 21, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 38.0 μg/m3 (35) 15.3 μg/m3 (57) 57.0
 
Sept. 21, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 46.0 μg/m3 (42) 19.7 μg/m3 (66) 66.0
 
Sept. 21, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 48.0 μg/m3 (44) 24.5 μg/m3 (77) 77.0
 
Sept. 21, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 52.0 μg/m3 (47) 24.5 μg/m3 (77) 77.0
 
Sept. 21, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 62.0 μg/m3 (54) 11.7 μg/m3 (49) 54.0
 
Sept. 21, 2020, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 64.0 μg/m3 (54) 33.2 μg/m3 (95) 95.0
 
Sept. 20, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 68.0 μg/m3 (56) 45.0 μg/m3 (124) 124.0
 
Sept. 20, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 69.0 μg/m3 (57) 7.5 μg/m3 (31) 57.0
 
Sept. 20, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 64.0 μg/m3 (54) 20.7 μg/m3 (69) 69.0
 
Sept. 20, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 75.0 μg/m3 (60) 21.4 μg/m3 (70) 70.0
 
Sept. 20, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 57.0 μg/m3 (51) 20.2 μg/m3 (67) 67.0
 
Sept. 20, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 65.0 μg/m3 (55) 24.3 μg/m3 (76) 76.0
 
Sept. 20, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 58.0 μg/m3 (52) 16.3 μg/m3 (59) 59.0
 
Sept. 20, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 49.0 μg/m3 (45) 18.1 μg/m3 (63) 63.0
 
Sept. 20, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 42.0 μg/m3 (38) 11.7 μg/m3 (49) 49.0
 
Sept. 20, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 34.0 μg/m3 (31) 14.1 μg/m3 (54) 54.0
 
Sept. 20, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 31.0 μg/m3 (28) 12.6 μg/m3 (51) 51.0
 
Sept. 20, 2020, noon N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 22.0 μg/m3 (20) 10.2 μg/m3 (42) 42.0
 
Sept. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 23.0 μg/m3 (21) 12.6 μg/m3 (51) 51.0
 
Sept. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 23.0 μg/m3 (21) 9.7 μg/m3 (40) 40.0
 
Sept. 20, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 25.0 μg/m3 (23) 8.0 μg/m3 (33) 33.0
 
Sept. 20, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 31.0 μg/m3 (28) 8.5 μg/m3 (35) 35.0
 
Sept. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 26.0 μg/m3 (24) 22.1 μg/m3 (71) 71.0
 
Sept. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 32.0 μg/m3 (29) 12.4 μg/m3 (51) 51.0
 
Sept. 20, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 38.0 μg/m3 (35) 10.9 μg/m3 (45) 45.0
 
Sept. 20, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 43.0 μg/m3 (39) 11.4 μg/m3 (48) 48.0
 
Sept. 20, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 45.0 μg/m3 (41) 11.4 μg/m3 (48) 48.0
 
Sept. 20, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 50.0 μg/m3 (45) 16.6 μg/m3 (60) 60.0
 
Sept. 20, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 60.0 μg/m3 (52) 5.8 μg/m3 (24) 52.0
 
Sept. 20, 2020, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 55.0 μg/m3 (50) 10.7 μg/m3 (45) 50.0
 
Sept. 19, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 67.0 μg/m3 (56) 11.7 μg/m3 (49) 56.0
 
Sept. 19, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 65.0 μg/m3 (55) 13.8 μg/m3 (54) 55.0
 
Sept. 19, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 64.0 μg/m3 (54) 11.2 μg/m3 (47) 54.0
 
Sept. 19, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 68.0 μg/m3 (56) 11.7 μg/m3 (49) 56.0
 
Sept. 19, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 66.0 μg/m3 (56) 8.0 μg/m3 (33) 56.0
 
Sept. 19, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 66.0 μg/m3 (56) 6.4 μg/m3 (27) 56.0
 
Sept. 19, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 54.0 μg/m3 (49) 17.1 μg/m3 (61) 61.0
 
Sept. 19, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 46.0 μg/m3 (42) 5.6 μg/m3 (23) 42.0
 
Sept. 19, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 39.0 μg/m3 (35) 3.0 μg/m3 (12) 35.0
 
Sept. 19, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 34.0 μg/m3 (31) 17.8 μg/m3 (62) 62.0
 
Sept. 19, 2020, 1 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) 6.6 μg/m3 (28) 28.0
 
Sept. 19, 2020, noon N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 21.0 μg/m3 (19) 6.3 μg/m3 (26) 26.0
 
Sept. 19, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 27.0 μg/m3 (25) 6.3 μg/m3 (26) 26.0
 
Sept. 19, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 31.0 μg/m3 (28) 7.0 μg/m3 (29) 29.0
 
Sept. 19, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 31.0 μg/m3 (28) -1.2 μg/m3 (0) 28.0
 
Sept. 19, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 37.0 μg/m3 (34) 5.6 μg/m3 (23) 34.0
 
Sept. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 43.0 μg/m3 (39) 24.1 μg/m3 (76) 76.0
 
Sept. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 50.0 μg/m3 (45) 8.5 μg/m3 (35) 45.0