ID: 2219

AQSQID: 410391009

Site Name: Springfield City Hall

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

Updated: Sept. 19, 2020, 9:38 a.m.

Location: Springfield (Main St), OR

Reporting: True, Located: True

Current AQI: 89.0

Springfield (Main St) OR, US: 44.046683, -123.017736

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 19, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 30.2 μg/m3 (89) 89.0
 
Sept. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 27.4 μg/m3 (83) 83.0
 
Sept. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 27.9 μg/m3 (84) 84.0
 
Sept. 19, 2020, 5 a.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. 19, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.8 μg/m3 (54) 54.0
 
Sept. 19, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.6 μg/m3 (23) 23.0
 
Sept. 19, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.1 μg/m3 (21) 21.0
 
Sept. 19, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.6 μg/m3 (23) 23.0
 
Sept. 19, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
Sept. 18, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (36) 36.0
 
Sept. 18, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.2 μg/m3 (30) 30.0
 
Sept. 18, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.9 μg/m3 (29) 29.0
 
Sept. 18, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.9 μg/m3 (29) 29.0
 
Sept. 18, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.2 μg/m3 (30) 30.0
 
Sept. 18, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.5 μg/m3 (64) 64.0
 
Sept. 18, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 22.9 μg/m3 (73) 73.0
 
Sept. 18, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 25.1 μg/m3 (78) 78.0
 
Sept. 18, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 22.2 μg/m3 (72) 72.0
 
Sept. 18, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 20.3 μg/m3 (68) 68.0
 
Sept. 18, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 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 N/A 20.8 μg/m3 (69) 69.0
 
Sept. 18, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 22.2 μg/m3 (72) 72.0
 
Sept. 18, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 19.7 μg/m3 (66) 66.0
 
Sept. 18, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (65) 65.0
 
Sept. 18, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 25.2 μg/m3 (78) 78.0
 
Sept. 18, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 131.0 μg/m3 (190) 190.0
 
Sept. 18, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 250.5 μg/m3 (300) 300.0
 
Sept. 18, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 273.7 μg/m3 (323) 323.0
 
Sept. 18, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 279.8 μg/m3 (329) 329.0
 
Sept. 18, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 279.0 μg/m3 (328) 328.0
 
Sept. 18, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 283.2 μg/m3 (333) 333.0
 
Sept. 18, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 292.2 μg/m3 (342) 342.0
 
Sept. 18, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 301.1 μg/m3 (351) 351.0
 
Sept. 17, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 273.9 μg/m3 (323) 323.0
 
Sept. 17, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 270.8 μg/m3 (320) 320.0
 
Sept. 17, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 263.8 μg/m3 (313) 313.0
 
Sept. 17, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 171.7 μg/m3 (221) 221.0
 
Sept. 17, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 169.2 μg/m3 (219) 219.0
 
Sept. 17, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 87.3 μg/m3 (167) 167.0
 
Sept. 17, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 67.0 μg/m3 (156) 156.0
 
Sept. 17, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 96.1 μg/m3 (171) 171.0
 
Sept. 17, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 238.2 μg/m3 (288) 288.0
 
Sept. 17, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 204.9 μg/m3 (254) 254.0
 
Sept. 17, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 256.1 μg/m3 (306) 306.0
 
Sept. 17, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 274.5 μg/m3 (324) 324.0
 
Sept. 17, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 227.2 μg/m3 (277) 277.0
 
Sept. 17, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 235.5 μg/m3 (285) 285.0
 
Sept. 17, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 167.0 μg/m3 (216) 216.0
 
Sept. 17, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 106.1 μg/m3 (177) 177.0
 
Sept. 17, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 96.0 μg/m3 (171) 171.0
 
Sept. 17, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 48.9 μg/m3 (134) 134.0
 
Sept. 17, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 17, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.8 μg/m3 (24) 24.0
 
Sept. 17, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.6 μg/m3 (23) 23.0
 
Sept. 17, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.2 μg/m3 (34) 34.0
 
Sept. 17, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 76.4 μg/m3 (161) 161.0
 
Sept. 17, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 102.7 μg/m3 (175) 175.0
 
Sept. 16, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 120.8 μg/m3 (184) 184.0
 
Sept. 16, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 156.5 μg/m3 (206) 206.0
 
Sept. 16, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 150.7 μg/m3 (200) 200.0
 
Sept. 16, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 266.7 μg/m3 (316) 316.0
 
Sept. 16, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 296.5 μg/m3 (346) 346.0
 
Sept. 16, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 274.0 μg/m3 (324) 324.0
 
Sept. 16, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 251.2 μg/m3 (301) 301.0
 
Sept. 16, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 240.5 μg/m3 (290) 290.0
 
Sept. 16, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 262.3 μg/m3 (312) 312.0
 
Sept. 16, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 284.7 μg/m3 (334) 334.0
 
Sept. 16, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 264.2 μg/m3 (314) 314.0
 
Sept. 16, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 264.3 μg/m3 (314) 314.0
 
Sept. 16, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 263.0 μg/m3 (312) 312.0
 
Sept. 16, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 261.8 μg/m3 (311) 311.0
 
Sept. 16, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 276.8 μg/m3 (326) 326.0
 
Sept. 16, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 298.7 μg/m3 (348) 348.0
 
Sept. 16, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 322.5 μg/m3 (372) 372.0
 
Sept. 16, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 291.5 μg/m3 (341) 341.0
 
Sept. 16, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 232.2 μg/m3 (282) 282.0
 
Sept. 16, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 247.0 μg/m3 (296) 296.0
 
Sept. 16, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 270.9 μg/m3 (320) 320.0
 
Sept. 16, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 265.4 μg/m3 (315) 315.0
 
Sept. 16, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 272.7 μg/m3 (322) 322.0
 
Sept. 16, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 258.8 μg/m3 (308) 308.0
 
Sept. 15, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 229.2 μg/m3 (279) 279.0
 
Sept. 15, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 250.6 μg/m3 (300) 300.0
 
Sept. 15, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 317.3 μg/m3 (367) 367.0
 
Sept. 15, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 350.5 μg/m3 (400) 400.0
 
Sept. 15, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 350.7 μg/m3 (400) 400.0
 
Sept. 15, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 268.1 μg/m3 (318) 318.0
 
Sept. 15, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 242.1 μg/m3 (292) 292.0
 
Sept. 15, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 239.8 μg/m3 (289) 289.0
 
Sept. 15, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 227.0 μg/m3 (276) 276.0
 
Sept. 15, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 219.8 μg/m3 (269) 269.0
 
Sept. 15, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 248.0 μg/m3 (298) 298.0
 
Sept. 15, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 277.4 μg/m3 (327) 327.0
 
Sept. 15, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 352.0 μg/m3 (401) 401.0
 
Sept. 15, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 335.1 μg/m3 (385) 385.0
 
Sept. 15, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 398.9 μg/m3 (432) 432.0
 
Sept. 15, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 396.7 μg/m3 (431) 431.0
 
Sept. 15, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 518.2 μg/m3 (512) 512.0
 
Sept. 15, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 438.8 μg/m3 (459) 459.0
 
Sept. 15, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 251.7 μg/m3 (301) 301.0
 
Sept. 15, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 206.9 μg/m3 (256) 256.0
 
Sept. 15, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 167.3 μg/m3 (217) 217.0
 
Sept. 15, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 153.2 μg/m3 (203) 203.0
 
Sept. 14, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 407.1 μg/m3 (438) 438.0
 
Sept. 14, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 393.4 μg/m3 (429) 429.0
 
Sept. 14, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 357.8 μg/m3 (405) 405.0
 
Sept. 14, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 345.0 μg/m3 (394) 394.0
 
Sept. 14, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 354.9 μg/m3 (403) 403.0
 
Sept. 14, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 352.8 μg/m3 (402) 402.0
 
Sept. 14, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 360.0 μg/m3 (406) 406.0
 
Sept. 14, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 372.1 μg/m3 (414) 414.0
 
Sept. 14, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 407.9 μg/m3 (438) 438.0
 
Sept. 14, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 450.6 μg/m3 (467) 467.0
 
Sept. 14, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 490.2 μg/m3 (493) 493.0
 
Sept. 14, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 458.5 μg/m3 (472) 472.0
 
Sept. 14, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 488.2 μg/m3 (492) 492.0
 
Sept. 14, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 522.6 μg/m3 (515) 515.0
 
Sept. 14, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 557.0 μg/m3 (538) 538.0
 
Sept. 14, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 544.0 μg/m3 (529) 529.0
 
Sept. 14, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 511.9 μg/m3 (508) 508.0
 
Sept. 14, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 472.0 μg/m3 (481) 481.0
 
Sept. 14, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 469.3 μg/m3 (479) 479.0
 
Sept. 14, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 455.1 μg/m3 (470) 470.0
 
Sept. 14, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 449.1 μg/m3 (466) 466.0
 
Sept. 14, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 461.9 μg/m3 (474) 474.0
 
Sept. 14, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 469.5 μg/m3 (479) 479.0
 
Sept. 13, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 483.2 μg/m3 (488) 488.0
 
Sept. 13, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 546.0 μg/m3 (530) 530.0
 
Sept. 13, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 552.5 μg/m3 (535) 535.0
 
Sept. 13, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 48.5 μg/m3 (132) 132.0
 
Sept. 12, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 52.2 μg/m3 (142) 142.0
 
Sept. 12, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 57.3 μg/m3 (151) 151.0
 
Sept. 12, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 60.0 μg/m3 (152) 152.0
 
Sept. 12, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 69.6 μg/m3 (157) 157.0
 
Sept. 12, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 107.9 μg/m3 (178) 178.0
 
Sept. 12, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 100.6 μg/m3 (174) 174.0
 
Sept. 12, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 91.9 μg/m3 (169) 169.0
 
Sept. 12, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 86.1 μg/m3 (166) 166.0
 
Sept. 12, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 90.0 μg/m3 (168) 168.0
 
Sept. 12, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 86.4 μg/m3 (166) 166.0
 
Sept. 12, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 93.8 μg/m3 (170) 170.0
 
Sept. 12, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 105.7 μg/m3 (176) 176.0
 
Sept. 12, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 115.8 μg/m3 (182) 182.0
 
Sept. 12, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 142.0 μg/m3 (196) 196.0
 
Sept. 12, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 166.7 μg/m3 (216) 216.0
 
Sept. 12, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 191.6 μg/m3 (241) 241.0
 
Sept. 12, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 220.4 μg/m3 (270) 270.0
 
Sept. 12, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 243.1 μg/m3 (293) 293.0
 
Sept. 12, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 231.7 μg/m3 (281) 281.0
 
Sept. 12, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 214.8 μg/m3 (264) 264.0
 
Sept. 12, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 198.6 μg/m3 (248) 248.0
 
Sept. 12, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 204.0 μg/m3 (254) 254.0
 
Sept. 12, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 216.3 μg/m3 (266) 266.0
 
Sept. 12, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 224.4 μg/m3 (274) 274.0
 
Sept. 11, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 214.5 μg/m3 (264) 264.0
 
Sept. 11, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 224.6 μg/m3 (274) 274.0
 
Sept. 11, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 194.1 μg/m3 (244) 244.0
 
Sept. 11, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 201.6 μg/m3 (251) 251.0
 
Sept. 11, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 221.9 μg/m3 (271) 271.0
 
Sept. 11, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 236.3 μg/m3 (286) 286.0
 
Sept. 11, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 249.3 μg/m3 (299) 299.0
 
Sept. 11, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 267.3 μg/m3 (317) 317.0
 
Sept. 11, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 281.0 μg/m3 (330) 330.0
 
Sept. 11, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 303.4 μg/m3 (353) 353.0
 
Sept. 11, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 323.7 μg/m3 (373) 373.0
 
Sept. 11, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 334.4 μg/m3 (384) 384.0
 
Sept. 11, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 354.3 μg/m3 (403) 403.0
 
Sept. 11, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 374.1 μg/m3 (416) 416.0