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♤ Brown carbon is a ubiquitous and unidentified component of organic aerosol which has recently come into the forefront of atmospheric research.
♤ Light-absorbing organic matter (other than soot) in atmospheric aerosols of various origins, e.g., soil humics, humic-like substances (HULIS), tarry materials from combustion, bioaerosols, etc.
Possible Sources of Brown Carbon are
♤ Biomass burning (possibly domestic wood burning) is shown to be a major source of brown carbon
♤ smoke from agricultural fires may be an additional source.
♤ “Brown carbon” is generally referred for greenhouse gases and “black carbon” for particles resulting from impure combustion, such as soot and dust.
Do you know?
A flowering tree usually has a dome-shaped appearance and a deliquescent stem in which the main trunk divides at some distance from the ground into several branches, which branch again and again, making the trunk appear to deliquese or melt away