Researchers have developed a new black carbon aerosol observation method
Schematic diagram of black carbon aerosol concentration observation by digital camera
Black carbon aerosol is a particulate matter with strong light absorption in the atmosphere, which plays an important role in global climate change, haze formation, and human health. It is currently a hot spot pollutant in the field of atmospheric environment research.
The study found that the particle opacity observed by digital camera technology has a characteristic relationship with its black carbon loading. In this method, the atmospheric aerosol is sampled with a filter membrane, and the sampled filter membrane is photographed. The digital image of the filter membrane is analyzed to obtain the opacity of its particulate layer. The concentration of carbon aerosol. This method has the advantages of simple operation, low running cost and fast data analysis. It has the potential to replace traditional thermal and optical black carbon monitoring instruments.
The related achievements were published in the authoritative magazine Atmospheric Environment (Atmospheric Environment, DOI: 10.1016 / j.atmosenv.2011.09.035) A national invention patent based on this method has been accepted.
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