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Polycyclic Aromatic Hydrocarbon - Substance Sources
Oct 20, 2017

Polycyclic Aromatic Hydrocarbon Definition: Aromatic compound containing more than one benzene ring, produced in industrial production, organic pyrolysis or incomplete combustion, many of which have been shown to be carcinogenic.

Applied science: ecology (a subject); pollution ecology (two subjects)

In the nature of these compounds exist biodegradation, hydrolysis, light cracking and other ways to eliminate, so that the environment PAHs content has always been a dynamic balance, which remained at a lower concentration level, but in recent years , With the intensification of human production activities, undermine its dynamic balance in the environment, so that a large increase in the environment PAHs.

Natural source

Mainly including combustion (forest fires and volcanic eruptions) and biosynthesis (sedimentary diagenesis, biotransformation processes and tar gas in tar), unexploited coal, and petroleum containing large amounts of polycyclic aromatic hydrocarbon.

Man-made source

PAHs anthropogenic sources are derived from industrial processes, anaerobic combustion, waste incineration and landfill, food production and direct traffic emissions and accompanying tire wear, asphalt particles produced by road wear, and road dust, along with industrial production The total increase in the total amount of PAHs in the environment; the oil spill has also become part of the PAHs anthropogenic source. Therefore, how to speed up the PAHs in the environment to eliminate speed, Polycyclic Aromatic Hydrocarbon pollution of the environment and other issues, has attracted increasing attention.


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