eCFR.io
Daily eCFR

Table F-6 to Subpart F of Part 53—Estimated Mass Concentration Measurement of PM <sub>2.5</sub> for Idealized Fine Aerosol Size Distribution

Estimated Mass Concentration Measurement of PM <sub>2.5</sub> for Idealized Fine Aerosol Size Distribution

  1. CFR
  2. ›
  3. Title 40
  4. ›
  5. Chapter I
  6. ›
  7. Part 53
  8. ›
  9. Subpart F
  10. ›
  11. Appendix Table F-6 to Subpart F of Part 53
CorpusDaily eCFR
Displayed edition2026-04-27
Last updated2026-04-27

Table F-6 to Subpart F of Part 53—Estimated Mass Concentration Measurement of PM 2.5 for Idealized Fine Aerosol Size Distribution

Particle Aerodynamic Diameter (µm)Test SamplerIdeal Sampler
Fractional Sampling EffectivenessInterval Mass Concentration (µg/m3)Estimated Mass Concentration Measurement (µg/m3)Fractional Sampling EffectivenessInterval Mass Concentration (µg/m3)Estimated Mass Concentration Measurement (µg/m3)
(1)(2)(3)(4)(5)(6)(7)
<0.5001.00018.868 1.00018.86818.868
0.625 13.412 0.99913.41213.399
0.750 8.014 0.9988.0147.998
0.875 6.984 0.9976.9846.963
1.000 5.954 0.9955.9545.924
1.125 5.015 0.9915.0154.970
1.250 4.197 0.9874.1974.142
1.375 3.503 0.9803.5033.433
1.500 2.921 0.9692.9212.830
1.675 2.438 0.9542.4382.326
1.750 2.039 0.9322.0391.900
1.875 1.709 0.8991.7091.536
2.000 1.437 0.8541.4371.227
2.125 1.212 0.7911.2120.959
2.250 1.026 0.7071.0260.725
2.375 0.873 0.6020.8730.526
2.500 0.745 0.4800.7450.358
2.625 0.638 0.3510.6380.224
2.750 0.550 0.2300.5500.127
2.875 0.476 0.1330.4760.063
3.000 0.414 0.0670.4140.028
3.125 0.362 0.0300.3620.011
3.250 0.319 0.0120.3190.004
3.3750.282 0.0040.2820.001
3.500 0.252 0.0010.2520.000000
3.625 0.226 0.0000000.2260.000000
3.750 0.204 0.0000000.2040.000000
3.875 0.185 0.0000000.1850.000000
4.000 0.170 0.0000000.1700.000000
4.125 0.157 0.0000000.1570.000000
4.250 0.146 0.0000000.1460.000000
4.375 0.136 0.0000000.1360.000000
4.500 0.129 0.0000000.1290.000000
4.625 0.122 0.0000000.1220.000000
4.750 0.117 0.0000000.1170.000000
4.875 0.112 0.0000000.1120.000000
5.000 0.108 0.0000000.1080.000000
5.125 0.105 0.0000000.1050.000000
5.250 0.102 0.0000000.1020.000000
5.375 0.100 0.0000000.1000.000000
5.500 0.098 0.0000000.0980.000000
5.625 0.097 0.0000000.0970.000000
5.75 0.096 0.0000000.0960.000000
Csam(exp)= Cideal(exp)=78.539