A PC-BOSS sampler for the routine determination of fine particulate material
Conference
·
OSTI ID:617784
- Brigham Young Univ., Provo, UT (United States)
Fine particulate mass will frequently be significantly underestimated in urban environments using current and proposed EPA federal reference method filter pack samplers because of loss of volatile material from the particles during sampling. Previously described diffusion denuder samplers, such as the Brigham Young University Organic Sampling System (BOSS) and BIG BOSS, eliminate both positive and negative sampling artifacts by removing the gas phase material before fine particulate mass is collected on a quartz filter and semi-volatile organic material lost from the particles is collected on a sequential sorbent filter or bed. However, these samplers are not amenable to routine field use because they require multiple systems to accurately account for the efficiency of the denuder for each sample. This problem has been solved by combining a virtual impactor and a particle concentrator (PC) to provide concentrated fine particles (0.1-2.5 {mu}m) to a BOSS sampling system.
- OSTI ID:
- 617784
- Report Number(s):
- CONF-9704195--
- Country of Publication:
- United States
- Language:
- English
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