ID: 2147

AQSQID: 461030020

Site Name: Credit Union

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

Updated: Sept. 21, 2021, 6:55 a.m.

Location: Rapid City (W Chicago St), SD

Reporting: True, Located: True

Current AQI: 43.0

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. 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 46.0 μg/m3 (43) 2.9 μg/m3 (13) 43.0
 
Sept. 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 5.6 μg/m3 (24) 24.0
 
Sept. 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 5.1 μg/m3 (22) 22.0
 
Sept. 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (27) 4.6 μg/m3 (20) 27.0
 
Sept. 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.0 μg/m3 (39) 6.5 μg/m3 (28) 39.0
 
Sept. 21, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (38) 5.1 μg/m3 (22) 38.0
 
Sept. 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) 5.1 μg/m3 (22) 22.0
 
Sept. 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 3.8 μg/m3 (16) 16.0
 
Sept. 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 5.5 μg/m3 (23) 23.0
 
Sept. 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 55.0 μg/m3 (51) 5.1 μg/m3 (22) 51.0
 
Sept. 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (28) 5.5 μg/m3 (23) 28.0
 
Sept. 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (30) 8.5 μg/m3 (36) 36.0
 
Sept. 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 76.0 μg/m3 (62) 8.7 μg/m3 (37) 62.0
 
Sept. 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 107.0 μg/m3 (77) 7.3 μg/m3 (31) 77.0
 
Sept. 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (29) 7.5 μg/m3 (32) 32.0
 
Sept. 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) 8.0 μg/m3 (34) 34.0
 
Sept. 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (41) 7.0 μg/m3 (30) 41.0
 
Sept. 20, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 7.0 μg/m3 (30) 30.0
 
Sept. 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 7.0 μg/m3 (30) 30.0
 
Sept. 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 5.6 μg/m3 (24) 24.0
 
Sept. 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 10.2 μg/m3 (43) 43.0
 
Sept. 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 148.0 μg/m3 (98) 18.3 μg/m3 (65) 98.0
 
Sept. 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (30) 8.8 μg/m3 (37) 37.0
 
Sept. 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 6.8 μg/m3 (29) 29.0
 
Sept. 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (35) 11.2 μg/m3 (47) 47.0
 
Sept. 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 68.0 μg/m3 (58) 14.3 μg/m3 (56) 58.0
 
Sept. 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 61.0 μg/m3 (54) 12.4 μg/m3 (52) 54.0
 
Sept. 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (25) 13.3 μg/m3 (54) 54.0
 
Sept. 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 117.0 μg/m3 (82) 21.5 μg/m3 (71) 82.0
 
Sept. 20, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 302.0 μg/m3 (175) 26.0 μg/m3 (81) 175.0
 
Sept. 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 12.3 μg/m3 (52) 52.0
 
Sept. 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 7.2 μg/m3 (31) 31.0
 
Sept. 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 8.9 μg/m3 (38) 38.0
 
Sept. 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) 3.9 μg/m3 (17) 22.0
 
Sept. 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 4.7 μg/m3 (20) 20.0
 
Sept. 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 6.9 μg/m3 (29) 29.0
 
Sept. 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 3.0 μg/m3 (13) 13.0
 
Sept. 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 132.0 μg/m3 (90) 15.0 μg/m3 (58) 90.0
 
Sept. 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 165.0 μg/m3 (106) 11.2 μg/m3 (47) 106.0
 
Sept. 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 5.5 μg/m3 (23) 23.0
 
Sept. 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 6.8 μg/m3 (29) 29.0
 
Sept. 19, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 0.2 μg/m3 (1) 7.0
 
Sept. 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 1.4 μg/m3 (6) 10.0
 
Sept. 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 2.6 μg/m3 (11) 11.0
 
Sept. 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 1.4 μg/m3 (6) 11.0
 
Sept. 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 46.0 μg/m3 (43) 2.1 μg/m3 (9) 43.0
 
Sept. 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 1.9 μg/m3 (8) 11.0
 
Sept. 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) 2.8 μg/m3 (12) 12.0
 
Sept. 19, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 3.3 μg/m3 (14) 14.0
 
Sept. 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 3.6 μg/m3 (16) 16.0
 
Sept. 19, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 5.5 μg/m3 (23) 23.0
 
Sept. 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) 8.2 μg/m3 (35) 35.0
 
Sept. 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) 6.3 μg/m3 (27) 27.0
 
Sept. 19, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 5.3 μg/m3 (23) 23.0
 
Sept. 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 1.3 μg/m3 (6) 11.0
 
Sept. 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 5.3 μg/m3 (23) 23.0
 
Sept. 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 8.0 μg/m3 (34) 34.0
 
Sept. 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) 7.7 μg/m3 (33) 33.0
 
Sept. 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) 9.5 μg/m3 (40) 40.0
 
Sept. 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 12.2 μg/m3 (52) 52.0
 
Sept. 18, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (25) 8.2 μg/m3 (35) 35.0
 
Sept. 18, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) 6.4 μg/m3 (27) 27.0
 
Sept. 18, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 7.0 μg/m3 (30) 30.0
 
Sept. 18, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 5.8 μg/m3 (25) 25.0
 
Sept. 18, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 7.0 μg/m3 (30) 30.0
 
Sept. 18, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 9.0 μg/m3 (38) 38.0
 
Sept. 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 11.4 μg/m3 (48) 48.0
 
Sept. 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (19) 7.7 μg/m3 (33) 33.0
 
Sept. 18, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (25) 5.1 μg/m3 (22) 25.0
 
Sept. 18, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (28) 15.6 μg/m3 (59) 59.0
 
Sept. 18, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.0 μg/m3 (38) 18.3 μg/m3 (65) 65.0
 
Sept. 18, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 46.0 μg/m3 (43) 24.6 μg/m3 (78) 78.0
 
Sept. 18, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 56.0 μg/m3 (52) 31.9 μg/m3 (93) 93.0
 
Sept. 18, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 64.0 μg/m3 (56) 37.7 μg/m3 (107) 107.0
 
Sept. 18, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 112.0 μg/m3 (80) 76.2 μg/m3 (162) 162.0
 
Sept. 18, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 156.0 μg/m3 (102) 106.4 μg/m3 (178) 178.0
 
Sept. 18, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 141.0 μg/m3 (94) 89.5 μg/m3 (169) 169.0
 
Sept. 18, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 108.0 μg/m3 (78) 68.1 μg/m3 (158) 158.0
 
Sept. 17, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 127.0 μg/m3 (87) 87.1 μg/m3 (168) 168.0
 
Sept. 17, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 80.0 μg/m3 (64) 41.1 μg/m3 (115) 115.0
 
Sept. 17, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) -0.2 μg/m3 (0) 22.0
 
Sept. 17, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) -0.2 μg/m3 (0) 23.0
 
Sept. 17, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) 3.3 μg/m3 (14) 22.0
 
Sept. 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 4.3 μg/m3 (18) 21.0
 
Sept. 17, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 0.7 μg/m3 (3) 21.0
 
Sept. 17, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 4.0 μg/m3 (17) 17.0
 
Sept. 17, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 9.5 μg/m3 (40) 40.0
 
Sept. 17, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 1.4 μg/m3 (6) 11.0
 
Sept. 17, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 4.3 μg/m3 (18) 18.0
 
Sept. 17, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 6.3 μg/m3 (27) 27.0
 
Sept. 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 3.1 μg/m3 (13) 13.0
 
Sept. 17, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 0.4 μg/m3 (2) 4.0
 
Sept. 17, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 0.7 μg/m3 (3) 4.0
 
Sept. 17, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 1.6 μg/m3 (7) 7.0
 
Sept. 17, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 3.8 μg/m3 (16) 16.0
 
Sept. 17, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 294.0 μg/m3 (171) 14.1 μg/m3 (56) 171.0
 
Sept. 17, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 182.0 μg/m3 (115) 17.8 μg/m3 (63) 115.0
 
Sept. 17, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (37) 5.1 μg/m3 (22) 37.0
 
Sept. 17, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 89.0 μg/m3 (68) 6.5 μg/m3 (28) 68.0
 
Sept. 17, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 77.0 μg/m3 (62) 4.3 μg/m3 (18) 62.0
 
Sept. 17, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 284.0 μg/m3 (166) 16.3 μg/m3 (60) 166.0
 
Sept. 17, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 327.0 μg/m3 (187) 22.3 μg/m3 (73) 187.0
 
Sept. 16, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (30) 5.3 μg/m3 (23) 30.0
 
Sept. 16, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 54.0 μg/m3 (50) 6.9 μg/m3 (29) 50.0
 
Sept. 16, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 59.0 μg/m3 (53) 5.7 μg/m3 (24) 53.0
 
Sept. 16, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 53.0 μg/m3 (50) 6.7 μg/m3 (28) 50.0
 
Sept. 16, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 99.0 μg/m3 (73) 9.7 μg/m3 (41) 73.0
 
Sept. 16, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 70.0 μg/m3 (59) 6.4 μg/m3 (27) 59.0
 
Sept. 16, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 117.0 μg/m3 (82) 8.5 μg/m3 (36) 82.0
 
Sept. 16, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 136.0 μg/m3 (92) 9.2 μg/m3 (39) 92.0
 
Sept. 16, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 450.0 μg/m3 (333) 20.8 μg/m3 (70) 333.0
 
Sept. 16, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 176.0 μg/m3 (112) 12.6 μg/m3 (53) 112.0
 
Sept. 16, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 130.0 μg/m3 (89) 17.3 μg/m3 (62) 89.0
 
Sept. 16, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 4.1 μg/m3 (18) 18.0
 
Sept. 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 5.3 μg/m3 (23) 23.0
 
Sept. 16, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 5.3 μg/m3 (23) 23.0
 
Sept. 16, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 5.3 μg/m3 (23) 23.0
 
Sept. 16, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 9.2 μg/m3 (39) 39.0
 
Sept. 16, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) 10.2 μg/m3 (43) 43.0
 
Sept. 16, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 7.5 μg/m3 (32) 32.0
 
Sept. 16, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 7.3 μg/m3 (31) 31.0
 
Sept. 16, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 9.7 μg/m3 (41) 41.0
 
Sept. 16, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 8.7 μg/m3 (37) 37.0
 
Sept. 16, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) 9.7 μg/m3 (41) 41.0
 
Sept. 16, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (29) 11.2 μg/m3 (47) 47.0
 
Sept. 16, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 5.9 μg/m3 (25) 25.0
 
Sept. 15, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (28) 9.6 μg/m3 (40) 40.0
 
Sept. 15, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 9.0 μg/m3 (38) 38.0
 
Sept. 15, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (19) 7.6 μg/m3 (32) 32.0
 
Sept. 15, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 7.1 μg/m3 (30) 30.0
 
Sept. 15, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 5.1 μg/m3 (22) 22.0
 
Sept. 15, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 5.8 μg/m3 (25) 25.0
 
Sept. 15, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 8.5 μg/m3 (36) 36.0
 
Sept. 15, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (25) 8.2 μg/m3 (35) 35.0
 
Sept. 15, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) 11.9 μg/m3 (50) 50.0
 
Sept. 15, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (26) 8.7 μg/m3 (37) 37.0
 
Sept. 15, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 84.0 μg/m3 (66) 10.7 μg/m3 (45) 66.0
 
Sept. 15, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (38) 10.2 μg/m3 (43) 43.0
 
Sept. 15, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 74.0 μg/m3 (61) 12.4 μg/m3 (52) 61.0
 
Sept. 15, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 250.0 μg/m3 (149) 8.0 μg/m3 (34) 149.0
 
Sept. 15, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 3.8 μg/m3 (16) 16.0
 
Sept. 15, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 5.1 μg/m3 (22) 22.0
 
Sept. 15, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 6.3 μg/m3 (27) 27.0
 
Sept. 15, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 3.8 μg/m3 (16) 16.0
 
Sept. 15, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 2.1 μg/m3 (9) 14.0
 
Sept. 15, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 3.6 μg/m3 (16) 16.0
 
Sept. 15, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 3.3 μg/m3 (14) 14.0
 
Sept. 15, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 3.1 μg/m3 (13) 17.0
 
Sept. 15, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 4.1 μg/m3 (18) 18.0
 
Sept. 15, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 2.8 μg/m3 (12) 14.0
 
Sept. 14, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 4.1 μg/m3 (18) 18.0
 
Sept. 14, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 1.8 μg/m3 (8) 11.0
 
Sept. 14, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 3.8 μg/m3 (16) 16.0
 
Sept. 14, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 6.3 μg/m3 (27) 27.0
 
Sept. 14, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 4.0 μg/m3 (17) 18.0
 
Sept. 14, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 3.2 μg/m3 (14) 14.0
 
Sept. 14, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (34) 6.2 μg/m3 (26) 34.0
 
Sept. 14, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (42) 9.2 μg/m3 (39) 42.0
 
Sept. 14, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 56.0 μg/m3 (52) 18.3 μg/m3 (65) 65.0
 
Sept. 14, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 3.6 μg/m3 (16) 16.0
 
Sept. 14, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 7.0 μg/m3 (30) 30.0
 
Sept. 14, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
Sept. 14, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 6.8 μg/m3 (29) 29.0
 
Sept. 14, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) 3.1 μg/m3 (13) 13.0
 
Sept. 14, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 3.3 μg/m3 (14) 14.0
 
Sept. 14, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) 7.5 μg/m3 (32) 32.0
 
Sept. 14, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 8.0 μg/m3 (34) 34.0
 
Sept. 14, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 4.3 μg/m3 (18) 18.0