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A Method for Monitoring Mass Concentration of Black Carbon Particulate Matter Using Photothermal Interferometry

A Method for Monitoring Mass Concentration of Black Carbon Particulate Matter Using Photothermal Interferometry

Baosheng Li, Yicheng Wang, Zhengqiang Li

Environ Sci Pollut Res Int. 2016 Mar;23(5):4692-9.

PMID: 26527346

Abstract:

A method for measurements of mass concentration of black carbon particulate matter (PM) is proposed based on photothermal interferometry (PTI). A folded Jamin photothermal interferometer was used with a laser irradiation of particles deposited on a filter paper. The black carbon PM deposited on the filter paper was regarded as a film while the quartz filter paper was regarded as a substrate to establish a mathematical model for measuring the mass concentration of PM using a photothermal method. The photothermal interferometry system was calibrated and used to measure the atmospheric PM concentration corresponding to different dust-treated filter paper. The measurements were compared to those obtained using β ray method and were found consistent. This method can be particularly relevant to polluted atmospheres where PM is dominated by black carbon.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
IAR42110	Particulate Matter on Filter Paper			Price

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