ID: 2147

AQSQID: 461030020

Site Name: Credit Union

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

Updated: Sept. 20, 2020, 3:38 p.m.

Location: Rapid City (W Chicago St), SD

Reporting: True, Located: True

Current AQI: 40.0

Rapid City (W Chicago St) SD, US: 44.087397, -103.273777

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 20, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 9.6 μg/m3 (40) 40.0
 
Sept. 20, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (30) 10.3 μg/m3 (43) 43.0
 
Sept. 20, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 42.0 μg/m3 (38) 9.1 μg/m3 (38) 38.0
 
Sept. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 10.8 μg/m3 (45) 45.0
 
Sept. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 65.0 μg/m3 (55) 12.9 μg/m3 (52) 55.0
 
Sept. 20, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 10.6 μg/m3 (44) 44.0
 
Sept. 20, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 11.3 μg/m3 (47) 47.0
 
Sept. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 105.0 μg/m3 (75) 10.6 μg/m3 (44) 75.0
 
Sept. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (35) 5.1 μg/m3 (21) 35.0
 
Sept. 20, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 6.1 μg/m3 (25) 25.0
 
Sept. 20, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 7.8 μg/m3 (32) 32.0
 
Sept. 20, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 69.0 μg/m3 (57) 9.1 μg/m3 (38) 57.0
 
Sept. 20, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 55.0 μg/m3 (50) 24.2 μg/m3 (76) 76.0
 
Sept. 20, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 59.0 μg/m3 (52) 26.6 μg/m3 (81) 81.0
 
Sept. 20, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 59.0 μg/m3 (52) 24.5 μg/m3 (77) 77.0
 
Sept. 19, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 48.0 μg/m3 (44) 20.6 μg/m3 (68) 68.0
 
Sept. 19, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 51.0 μg/m3 (46) 18.6 μg/m3 (64) 64.0
 
Sept. 19, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 50.0 μg/m3 (45) 16.8 μg/m3 (60) 60.0
 
Sept. 19, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 51.0 μg/m3 (46) 16.3 μg/m3 (59) 59.0
 
Sept. 19, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 58.0 μg/m3 (52) 23.1 μg/m3 (74) 74.0
 
Sept. 19, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 66.0 μg/m3 (56) 25.2 μg/m3 (78) 78.0
 
Sept. 19, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 65.0 μg/m3 (55) 21.1 μg/m3 (69) 69.0
 
Sept. 19, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 61.0 μg/m3 (53) 23.7 μg/m3 (75) 75.0
 
Sept. 19, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 79.0 μg/m3 (62) 26.9 μg/m3 (82) 82.0
 
Sept. 19, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 376.0 μg/m3 (230) 49.1 μg/m3 (134) 230.0
 
Sept. 19, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 72.0 μg/m3 (58) 22.1 μg/m3 (71) 71.0
 
Sept. 19, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 130.0 μg/m3 (88) 32.7 μg/m3 (94) 94.0
 
Sept. 19, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 75.0 μg/m3 (60) 29.1 μg/m3 (86) 86.0
 
Sept. 19, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 48.0 μg/m3 (44) 25.2 μg/m3 (78) 78.0
 
Sept. 19, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 59.0 μg/m3 (52) 27.6 μg/m3 (83) 83.0
 
Sept. 19, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 133.0 μg/m3 (89) 27.9 μg/m3 (84) 89.0
 
Sept. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (36) 25.2 μg/m3 (78) 78.0
 
Sept. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 47.0 μg/m3 (43) 28.3 μg/m3 (85) 85.0
 
Sept. 19, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 56.0 μg/m3 (50) 32.2 μg/m3 (93) 93.0
 
Sept. 19, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 61.0 μg/m3 (53) 23.8 μg/m3 (75) 75.0
 
Sept. 19, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.0 μg/m3 (37) 18.7 μg/m3 (64) 64.0
 
Sept. 19, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 48.0 μg/m3 (44) 21.1 μg/m3 (69) 69.0
 
Sept. 19, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (39) 20.4 μg/m3 (68) 68.0
 
Sept. 19, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 47.0 μg/m3 (43) 15.4 μg/m3 (57) 57.0
 
Sept. 18, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 46.0 μg/m3 (42) 21.9 μg/m3 (71) 71.0
 
Sept. 18, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 49.0 μg/m3 (45) 17.2 μg/m3 (61) 61.0
 
Sept. 18, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 47.0 μg/m3 (43) 19.1 μg/m3 (65) 65.0
 
Sept. 18, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 55.0 μg/m3 (50) 15.9 μg/m3 (58) 58.0
 
Sept. 18, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 55.0 μg/m3 (50) 20.6 μg/m3 (68) 68.0
 
Sept. 18, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 48.0 μg/m3 (44) 19.4 μg/m3 (66) 66.0
 
Sept. 18, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (40) 24.0 μg/m3 (76) 76.0
 
Sept. 18, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 47.0 μg/m3 (43) 20.4 μg/m3 (68) 68.0
 
Sept. 18, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 62.0 μg/m3 (54) 20.4 μg/m3 (68) 68.0
 
Sept. 18, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (33) 17.7 μg/m3 (62) 62.0
 
Sept. 18, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (30) 20.1 μg/m3 (67) 67.0
 
Sept. 18, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 18.2 μg/m3 (63) 63.0
 
Sept. 18, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 20.9 μg/m3 (69) 69.0
 
Sept. 18, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (33) 22.6 μg/m3 (73) 73.0
 
Sept. 18, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (32) 17.2 μg/m3 (61) 61.0
 
Sept. 18, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (34) 17.7 μg/m3 (62) 62.0
 
Sept. 18, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (30) 18.9 μg/m3 (65) 65.0
 
Sept. 18, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (33) 18.2 μg/m3 (63) 63.0
 
Sept. 18, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (35) 21.9 μg/m3 (71) 71.0
 
Sept. 18, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (41) 27.8 μg/m3 (84) 84.0
 
Sept. 18, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 48.0 μg/m3 (44) 25.2 μg/m3 (78) 78.0
 
Sept. 18, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 52.0 μg/m3 (47) 24.5 μg/m3 (77) 77.0
 
Sept. 18, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 92.0 μg/m3 (68) 24.0 μg/m3 (76) 76.0
 
Sept. 18, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 85.0 μg/m3 (65) 26.9 μg/m3 (82) 82.0
 
Sept. 17, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 105.0 μg/m3 (75) 29.5 μg/m3 (87) 87.0
 
Sept. 17, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 138.0 μg/m3 (92) 26.6 μg/m3 (81) 92.0
 
Sept. 17, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 160.0 μg/m3 (102) 34.4 μg/m3 (98) 102.0
 
Sept. 17, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 209.0 μg/m3 (127) 33.4 μg/m3 (96) 127.0
 
Sept. 17, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 152.0 μg/m3 (98) 24.4 μg/m3 (76) 98.0
 
Sept. 17, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 129.0 μg/m3 (87) 27.1 μg/m3 (82) 87.0
 
Sept. 17, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 127.0 μg/m3 (86) 29.3 μg/m3 (87) 87.0
 
Sept. 17, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 127.0 μg/m3 (86) 33.9 μg/m3 (97) 97.0
 
Sept. 17, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 117.0 μg/m3 (81) 42.0 μg/m3 (116) 116.0
 
Sept. 17, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 291.0 μg/m3 (168) 54.3 μg/m3 (147) 168.0
 
Sept. 17, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 101.0 μg/m3 (73) 40.2 μg/m3 (112) 112.0
 
Sept. 17, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 144.0 μg/m3 (94) 44.2 μg/m3 (122) 122.0
 
Sept. 17, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 282.0 μg/m3 (164) 41.0 μg/m3 (114) 164.0
 
Sept. 17, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 98.0 μg/m3 (72) 31.5 μg/m3 (91) 91.0
 
Sept. 17, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 57.0 μg/m3 (51) 28.6 μg/m3 (85) 85.0
 
Sept. 17, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 153.0 μg/m3 (99) 28.1 μg/m3 (84) 99.0
 
Sept. 17, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (33) 24.9 μg/m3 (77) 77.0
 
Sept. 17, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (39) 20.4 μg/m3 (68) 68.0
 
Sept. 17, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (41) 23.8 μg/m3 (75) 75.0
 
Sept. 17, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (40) 15.7 μg/m3 (58) 58.0
 
Sept. 17, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 53.0 μg/m3 (48) 20.6 μg/m3 (68) 68.0
 
Sept. 17, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (40) 20.4 μg/m3 (68) 68.0
 
Sept. 17, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 54.0 μg/m3 (49) 24.2 μg/m3 (76) 76.0
 
Sept. 17, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 48.0 μg/m3 (44) 12.4 μg/m3 (51) 51.0
 
Sept. 16, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 48.0 μg/m3 (44) 19.4 μg/m3 (66) 66.0
 
Sept. 16, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (41) 9.3 μg/m3 (39) 41.0
 
Sept. 16, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 46.0 μg/m3 (42) 8.6 μg/m3 (36) 42.0
 
Sept. 16, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (39) 10.1 μg/m3 (42) 42.0
 
Sept. 16, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (41) 9.3 μg/m3 (39) 41.0
 
Sept. 16, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (40) 6.1 μg/m3 (25) 40.0
 
Sept. 16, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.0 μg/m3 (38) 6.4 μg/m3 (27) 38.0
 
Sept. 16, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 66.0 μg/m3 (56) 7.3 μg/m3 (30) 56.0
 
Sept. 16, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 77.0 μg/m3 (61) 12.0 μg/m3 (50) 61.0
 
Sept. 16, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 21.6 μg/m3 (70) 70.0
 
Sept. 16, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 70.0 μg/m3 (58) 30.0 μg/m3 (88) 88.0
 
Sept. 16, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 59.0 μg/m3 (52) 26.6 μg/m3 (81) 81.0
 
Sept. 16, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 91.0 μg/m3 (68) 27.8 μg/m3 (84) 84.0
 
Sept. 16, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 102.0 μg/m3 (74) 32.7 μg/m3 (94) 94.0
 
Sept. 16, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 100.0 μg/m3 (72) 34.2 μg/m3 (97) 97.0
 
Sept. 16, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 92.0 μg/m3 (68) 37.0 μg/m3 (104) 104.0
 
Sept. 16, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 64.0 μg/m3 (54) 39.2 μg/m3 (109) 109.0
 
Sept. 16, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 92.0 μg/m3 (68) 33.7 μg/m3 (96) 96.0
 
Sept. 16, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 118.0 μg/m3 (82) 32.2 μg/m3 (93) 93.0
 
Sept. 16, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 107.0 μg/m3 (76) 22.6 μg/m3 (73) 76.0
 
Sept. 16, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 92.0 μg/m3 (68) 26.2 μg/m3 (80) 80.0
 
Sept. 16, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 57.0 μg/m3 (51) 27.6 μg/m3 (83) 83.0
 
Sept. 16, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 52.0 μg/m3 (47) 24.2 μg/m3 (76) 76.0
 
Sept. 16, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 78.0 μg/m3 (62) 32.2 μg/m3 (93) 93.0
 
Sept. 15, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 69.0 μg/m3 (57) 25.4 μg/m3 (79) 79.0
 
Sept. 15, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 80.0 μg/m3 (62) 24.4 μg/m3 (76) 76.0
 
Sept. 15, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 75.0 μg/m3 (60) 25.5 μg/m3 (79) 79.0
 
Sept. 15, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 81.0 μg/m3 (63) 30.1 μg/m3 (89) 89.0
 
Sept. 15, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 77.0 μg/m3 (61) 30.3 μg/m3 (89) 89.0
 
Sept. 15, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 86.0 μg/m3 (66) 33.7 μg/m3 (96) 96.0
 
Sept. 15, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 105.0 μg/m3 (75) 26.9 μg/m3 (82) 82.0
 
Sept. 15, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 112.0 μg/m3 (78) 11.2 μg/m3 (47) 78.0
 
Sept. 15, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 106.0 μg/m3 (76) 19.6 μg/m3 (66) 76.0
 
Sept. 15, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 8.6 μg/m3 (36) 36.0
 
Sept. 15, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 5.9 μg/m3 (25) 25.0
 
Sept. 15, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 5.1 μg/m3 (21) 21.0
 
Sept. 15, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 2.9 μg/m3 (12) 12.0
 
Sept. 15, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 3.9 μg/m3 (16) 16.0
 
Sept. 15, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 4.4 μg/m3 (18) 18.0
 
Sept. 15, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 6.6 μg/m3 (28) 28.0
 
Sept. 15, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 10.0 μg/m3 (42) 42.0
 
Sept. 15, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 8.3 μg/m3 (35) 35.0
 
Sept. 15, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 16.9 μg/m3 (60) 60.0
 
Sept. 15, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 12.2 μg/m3 (50) 50.0
 
Sept. 15, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 17.2 μg/m3 (61) 61.0
 
Sept. 15, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 9.2 μg/m3 (38) 38.0
 
Sept. 14, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 10.1 μg/m3 (42) 42.0
 
Sept. 14, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 10.3 μg/m3 (43) 43.0
 
Sept. 14, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 12.2 μg/m3 (50) 50.0
 
Sept. 14, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 1.5 μg/m3 (6) 13.0
 
Sept. 14, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 0.5 μg/m3 (2) 15.0
 
Sept. 14, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 0.8 μg/m3 (3) 18.0
 
Sept. 14, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 3.0 μg/m3 (12) 29.0
 
Sept. 14, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 5.0 μg/m3 (21) 31.0
 
Sept. 14, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 53.0 μg/m3 (48) 15.4 μg/m3 (57) 57.0
 
Sept. 14, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 55.0 μg/m3 (50) 6.4 μg/m3 (27) 50.0
 
Sept. 14, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 3.4 μg/m3 (14) 24.0
 
Sept. 14, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 1.7 μg/m3 (7) 8.0
 
Sept. 14, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 1.2 μg/m3 (5) 5.0
 
Sept. 14, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 1.0 μg/m3 (4) 7.0
 
Sept. 14, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 1.2 μg/m3 (5) 6.0
 
Sept. 14, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) -1.3 μg/m3 (0) 9.0
 
Sept. 14, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) -0.8 μg/m3 (0) 11.0
 
Sept. 14, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 1.7 μg/m3 (7) 11.0
 
Sept. 14, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 4.2 μg/m3 (18) 19.0
 
Sept. 14, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 6.9 μg/m3 (29) 29.0
 
Sept. 14, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 13.4 μg/m3 (53) 53.0
 
Sept. 14, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 7.1 μg/m3 (30) 30.0
 
Sept. 14, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 7.3 μg/m3 (30) 30.0
 
Sept. 14, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 89.0 μg/m3 (67) 8.3 μg/m3 (35) 67.0
 
Sept. 13, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 50.0 μg/m3 (45) 8.3 μg/m3 (35) 45.0
 
Sept. 13, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 66.0 μg/m3 (56) 4.3 μg/m3 (18) 56.0
 
Sept. 13, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 61.0 μg/m3 (53) 5.4 μg/m3 (23) 53.0
 
Sept. 13, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 98.0 μg/m3 (72) 6.6 μg/m3 (28) 72.0
 
Sept. 13, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 86.0 μg/m3 (66) 5.9 μg/m3 (25) 66.0
 
Sept. 13, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 134.0 μg/m3 (90) 5.7 μg/m3 (24) 90.0
 
Sept. 13, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 148.0 μg/m3 (96) 8.0 μg/m3 (33) 96.0
 
Sept. 13, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 234.0 μg/m3 (140) 13.6 μg/m3 (53) 140.0
 
Sept. 13, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 86.0 μg/m3 (66) 2.9 μg/m3 (12) 66.0
 
Sept. 13, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 3.2 μg/m3 (13) 13.0
 
Sept. 13, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 3.7 μg/m3 (15) 18.0