ID: 2146

AQSQID: 460930001

Site Name: Black Hawk

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

Updated: July 28, 2021, 6:55 p.m.

Location: Black Hawk (Angus Lane), SD

Reporting: True, Located: True

Current AQI: 81.0

Black Hawk (Angus Lane) SD, US: 44.155636, -103.315765

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 28, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A 27.0 μg/m3 (25) N/A 81.0
 
July 28, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A 27.0 μg/m3 (25) N/A 87.0
 
July 28, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A 39.0 μg/m3 (37) N/A 81.0
 
July 28, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 54.0 μg/m3 (50) N/A 58.0
 
July 28, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 32.0 μg/m3 (30) N/A 38.0
 
July 28, 2021, noon N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 23.0 μg/m3 (22) N/A 49.0
 
July 28, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 16.0 μg/m3 (15) N/A 49.0
 
July 28, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A 12.0 μg/m3 (12) N/A 65.0
 
July 28, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 70.0 ppb (100) N/A 16.0 μg/m3 (15) N/A 100.0
 
July 28, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (97) N/A 23.0 μg/m3 (22) N/A 97.0
 
July 28, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A 19.0 μg/m3 (18) N/A 94.0
 
July 28, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (97) N/A 21.0 μg/m3 (20) N/A 97.0
 
July 28, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 70.0 ppb (100) N/A 26.0 μg/m3 (25) N/A 100.0
 
July 28, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (102) N/A 31.0 μg/m3 (29) N/A 102.0
 
July 28, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 74.0 ppb (103) N/A 22.0 μg/m3 (21) N/A 103.0
 
July 28, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 75.0 ppb (104) N/A 28.0 μg/m3 (26) N/A 104.0
 
July 28, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 75.0 ppb (104) N/A 26.0 μg/m3 (25) N/A 104.0
 
July 28, 2021, midnight N/A N/A N/A N/A N/A N/A 75.0 ppb (104) N/A 36.0 μg/m3 (34) N/A 104.0
 
July 27, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 75.0 ppb (104) N/A 44.0 μg/m3 (41) N/A 104.0
 
July 27, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 74.0 ppb (103) N/A 36.0 μg/m3 (34) N/A 103.0
 
July 27, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (102) N/A 30.0 μg/m3 (28) N/A 102.0
 
July 27, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (102) N/A 36.0 μg/m3 (34) N/A 102.0
 
July 27, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (102) N/A 34.0 μg/m3 (32) N/A 102.0
 
July 27, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 70.0 ppb (100) N/A 35.0 μg/m3 (33) N/A 100.0
 
July 27, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A 64.0 μg/m3 (56) N/A 91.0
 
July 27, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 71.0 ppb (101) N/A 141.0 μg/m3 (94) N/A 101.0
 
July 27, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 116.0 μg/m3 (82) N/A 82.0
 
July 27, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 39.0 μg/m3 (37) N/A 39.0
 
July 27, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 23.0 μg/m3 (22) N/A 36.0
 
July 27, 2021, noon N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 40.0 μg/m3 (38) N/A 38.0
 
July 27, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 34.0 μg/m3 (32) N/A 36.0
 
July 27, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 38.0 μg/m3 (36) N/A 40.0
 
July 27, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 41.0 μg/m3 (38) N/A 41.0
 
July 27, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 46.0 μg/m3 (43) N/A 43.0
 
July 27, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 42.0 μg/m3 (39) N/A 39.0
 
July 27, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 41.0 μg/m3 (38) N/A 42.0
 
July 27, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 45.0 μg/m3 (42) N/A 43.0
 
July 27, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 31.0 μg/m3 (29) N/A 51.0
 
July 27, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 32.0 μg/m3 (30) N/A 61.0
 
July 27, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 44.0 μg/m3 (41) N/A 49.0
 
July 27, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A 38.0 μg/m3 (36) N/A 81.0
 
July 27, 2021, midnight N/A N/A N/A N/A N/A N/A 74.0 ppb (103) N/A 34.0 μg/m3 (32) N/A 103.0
 
July 26, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 75.0 ppb (104) N/A 36.0 μg/m3 (34) N/A 104.0
 
July 26, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 74.0 ppb (103) N/A 26.0 μg/m3 (25) N/A 103.0
 
July 26, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 73.0 ppb (103) N/A 26.0 μg/m3 (25) N/A 103.0
 
July 26, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 71.0 ppb (101) N/A 26.0 μg/m3 (25) N/A 101.0
 
July 26, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 70.0 ppb (100) N/A 29.0 μg/m3 (27) N/A 100.0
 
July 26, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A 27.0 μg/m3 (25) N/A 94.0
 
July 26, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A 26.0 μg/m3 (25) N/A 87.0
 
July 26, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 35.0 μg/m3 (33) N/A 74.0
 
July 26, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A 36.0 μg/m3 (34) N/A 68.0
 
July 26, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 11.0 μg/m3 (11) N/A 71.0
 
July 26, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 70.0 ppb (100) N/A 17.0 μg/m3 (16) N/A 100.0
 
July 26, 2021, noon N/A N/A N/A N/A N/A N/A 71.0 ppb (101) N/A 17.0 μg/m3 (16) N/A 101.0
 
July 26, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A 13.0 μg/m3 (13) N/A 94.0
 
July 26, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) N/A 21.0 μg/m3 (20) N/A 84.0
 
July 26, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A 22.0 μg/m3 (21) N/A 87.0
 
July 26, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A 30.0 μg/m3 (28) N/A 94.0
 
July 26, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A 28.0 μg/m3 (26) N/A 91.0
 
July 26, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) N/A 23.0 μg/m3 (22) N/A 84.0
 
July 26, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) N/A 24.0 μg/m3 (23) N/A 84.0
 
July 26, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 28.0 μg/m3 (26) N/A 58.0
 
July 26, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A 22.0 μg/m3 (21) N/A 78.0
 
July 26, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 20.0 μg/m3 (19) N/A 43.0
 
July 26, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 14.0 μg/m3 (13) N/A 32.0
 
July 26, 2021, midnight N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 32.0 μg/m3 (30) N/A 30.0
 
July 25, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A N/A 47.0
 
July 25, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) N/A 24.0
 
July 25, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 76.0 ppb (104) N/A 32.0 μg/m3 (30) N/A 104.0
 
July 25, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 75.0 ppb (104) N/A 22.0 μg/m3 (21) N/A 104.0
 
July 25, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 75.0 ppb (104) N/A 27.0 μg/m3 (25) N/A 104.0
 
July 25, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 73.0 ppb (103) N/A 26.0 μg/m3 (25) N/A 103.0
 
July 25, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 70.0 ppb (100) N/A 24.0 μg/m3 (23) N/A 100.0
 
July 25, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) N/A 29.0 μg/m3 (27) N/A 84.0
 
July 25, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A 26.0 μg/m3 (25) N/A 78.0
 
July 25, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 23.0 μg/m3 (22) N/A 55.0
 
July 25, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 26.0 μg/m3 (25) N/A 49.0
 
July 25, 2021, noon N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 23.0 μg/m3 (22) N/A 51.0
 
July 25, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A 26.0 μg/m3 (25) N/A 91.0
 
July 25, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A 26.0 μg/m3 (25) N/A 91.0
 
July 25, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 21.0 μg/m3 (20) N/A 74.0
 
July 25, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 18.0 μg/m3 (17) N/A 58.0
 
July 25, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 17.0 μg/m3 (16) N/A 50.0
 
July 25, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 22.0 μg/m3 (21) N/A 45.0
 
July 25, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 23.0 μg/m3 (22) N/A 47.0
 
July 25, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 29.0 μg/m3 (27) N/A 45.0
 
July 25, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 26.0 μg/m3 (25) N/A 49.0
 
July 25, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 36.0 μg/m3 (34) N/A 74.0
 
July 25, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (97) N/A 23.0 μg/m3 (22) N/A 97.0
 
July 25, 2021, midnight N/A N/A N/A N/A N/A N/A 73.0 ppb (103) N/A 25.0 μg/m3 (24) N/A 103.0
 
July 24, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 74.0 ppb (103) N/A 27.0 μg/m3 (25) N/A 103.0
 
July 24, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 75.0 ppb (104) N/A 25.0 μg/m3 (24) N/A 104.0
 
July 24, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 73.0 ppb (103) N/A 21.0 μg/m3 (20) N/A 103.0
 
July 24, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (102) N/A 22.0 μg/m3 (21) N/A 102.0
 
July 24, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 71.0 ppb (101) N/A 22.0 μg/m3 (21) N/A 101.0
 
July 24, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (97) N/A 25.0 μg/m3 (24) N/A 97.0
 
July 24, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (97) N/A 17.0 μg/m3 (16) N/A 97.0
 
July 24, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 71.0 ppb (101) N/A 20.0 μg/m3 (19) N/A 101.0
 
July 24, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A 18.0 μg/m3 (17) N/A 94.0
 
July 24, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 15.0 μg/m3 (14) N/A 58.0
 
July 24, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 16.0 μg/m3 (15) N/A 40.0
 
July 24, 2021, noon N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 17.0 μg/m3 (16) N/A 39.0
 
July 24, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 13.0 μg/m3 (13) N/A 41.0
 
July 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 16.0 μg/m3 (15) N/A 39.0
 
July 24, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 17.0 μg/m3 (16) N/A 38.0
 
July 24, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 16.0 μg/m3 (15) N/A 44.0
 
July 24, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 16.0 μg/m3 (15) N/A 61.0
 
July 24, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 18.0 μg/m3 (17) N/A 48.0
 
July 24, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 20.0 μg/m3 (19) N/A 49.0
 
July 24, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 22.0 μg/m3 (21) N/A 49.0
 
July 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 20.0 μg/m3 (19) N/A 48.0
 
July 24, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 24.0 μg/m3 (23) N/A 46.0
 
July 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 32.0 μg/m3 (30) N/A 46.0
 
July 24, 2021, midnight N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 23.0 μg/m3 (22) N/A 58.0
 
July 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A 31.0 μg/m3 (29) N/A 65.0
 
July 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 27.0 μg/m3 (25) N/A 61.0
 
July 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 27.0 μg/m3 (25) N/A 51.0
 
July 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 24.0 μg/m3 (23) N/A 50.0
 
July 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 55.0 μg/m3 (51) N/A 51.0
 
July 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 19.0 μg/m3 (18) N/A 50.0
 
July 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) N/A 18.0 μg/m3 (17) N/A 84.0
 
July 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 23.0 μg/m3 (22) N/A 71.0
 
July 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 29.0 μg/m3 (27) N/A 47.0
 
July 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 15.0 μg/m3 (14) N/A 39.0
 
July 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 8.0 μg/m3 (8) N/A 34.0
 
July 23, 2021, noon N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 6.0 μg/m3 (6) N/A 39.0
 
July 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 14.0 μg/m3 (13) N/A 44.0
 
July 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 11.0 μg/m3 (11) N/A 44.0
 
July 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 10.0 μg/m3 (10) N/A 34.0
 
July 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 13.0 μg/m3 (13) N/A 28.0
 
July 23, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 14.0 μg/m3 (13) N/A 32.0
 
July 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 10.0 μg/m3 (10) N/A 37.0
 
July 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 13.0 μg/m3 (13) N/A 31.0
 
July 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 10.0 μg/m3 (10) N/A 42.0
 
July 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 10.0 μg/m3 (10) N/A 38.0
 
July 23, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 14.0 μg/m3 (13) N/A 40.0
 
July 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A N/A 39.0
 
July 23, 2021, midnight N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 110.0 μg/m3 (79) N/A 79.0
 
July 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 34.0 μg/m3 (32) N/A 58.0
 
July 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A 23.0 μg/m3 (22) N/A 91.0
 
July 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A 29.0 μg/m3 (27) N/A 78.0
 
July 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A 32.0 μg/m3 (30) N/A 81.0
 
July 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (97) N/A 35.0 μg/m3 (33) N/A 97.0
 
July 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A 36.0 μg/m3 (34) N/A 91.0
 
July 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A 43.0 μg/m3 (40) N/A 87.0
 
July 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A 44.0 μg/m3 (41) N/A 78.0
 
July 22, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 28.0 μg/m3 (26) N/A 58.0
 
July 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 34.0 μg/m3 (32) N/A 50.0
 
July 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 35.0 μg/m3 (33) N/A 33.0
 
July 22, 2021, noon N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 26.0 μg/m3 (25) N/A 25.0
 
July 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 19.0 μg/m3 (18) N/A 32.0
 
July 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 24.0 μg/m3 (23) N/A 29.0
 
July 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 24.0 μg/m3 (23) N/A 34.0
 
July 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 27.0 μg/m3 (25) N/A 32.0
 
July 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 28.0 μg/m3 (26) N/A 26.0
 
July 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 22.0 μg/m3 (21) N/A 33.0
 
July 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 30.0 μg/m3 (28) N/A 32.0
 
July 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 17.0 μg/m3 (16) N/A 36.0
 
July 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 22.0 μg/m3 (21) N/A 49.0
 
July 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 23.0 μg/m3 (22) N/A 49.0
 
July 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 19.0 μg/m3 (18) N/A 50.0
 
July 22, 2021, midnight N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 17.0 μg/m3 (16) N/A 61.0
 
July 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 20.0 μg/m3 (19) N/A 51.0
 
July 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 31.0 μg/m3 (29) N/A 50.0
 
July 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A 33.0 μg/m3 (31) N/A 68.0
 
July 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A 43.0 μg/m3 (40) N/A 81.0
 
July 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A 38.0 μg/m3 (36) N/A 81.0
 
July 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 44.0 μg/m3 (41) N/A 74.0