Sources, properties and health risks of carcinogenic polycyclic aromatic hydrocarbons
نویسندگان
چکیده
In the present review article focus on highlighting the sources, properties and health risks of carcinogenic PAHs both on human health and environment. Polycyclic Aromatic Hydrocarbons (PAHs) comprises a broad family of compounds that are also described as semi volatile organic compounds (SVOC). This term refers to the fact that PAHs are distributed between gas and particle phases. In fast budding cities of India, limited research work has been done on air contamination and distribution behaviour of PAHs, where vehicles (cars, trucks, buses and two wheeler) as old as one to twenty years run on the same roads. The trouble is further multiplied due to lack of maintenance, poor planning, socio economic condition and slow pace of infrastructure development. In the city atmosphere smaller vehicles (two, three and four wheelers) running mainly on petrol and diesel fuels are foremost contributor of PAHs. Due to increase in urbanization, industrial development, increase in population and vehicular traffic over the past decades the demand of fossil fuels has increased resulting in the rise of emission of PAHs to the atmosphere. PAHs are omnipresent including soil, water and air. They are generally stuck to the solid sediments. PAHs existence in the atmosphere results in troubles because consuming products obtained from sources like processed petroleum products and agricultural produce could be ruinous as it causes tumours in animals and cancers in human beings
منابع مشابه
Assessment of Sources and Health Risks of Polycyclic Aromatic Hydrocarbons (PAHs) in the Street Dust of Dezful City
Street dust is mainly affected by the pollution of polycyclic aromatic hydrocarbons (PAHs). PAHs are a group of organic pollutants consisting of two or more benzene rings and are mainly produced during incomplete combustion. PAHs have attracted widespread attention due to their high carcinogenic and mutagenic properties in humans. Therefore, the purpose of this study was to investigate the sour...
متن کاملPolycyclic aromatic hydrocarbons species in soil and its probabilistic cancer risk to residents near municipal solid waste landfill site
Present study was undertaken to examine the extent of Polycyclic Aromatic Hydrocarbons (PAHs) contamination in neighbourhood lithospheric environment of landfill site situated in eastern outer edge of Kolkata metropolitan city in West Bengal, India, along with its sources identification, spatial distribution and probabilistic cancer risks to residents. The collection and analytical tests were p...
متن کاملPolycyclic Aromatic Hydrocarbons in the Dagang Oilfield (China): Distribution, Sources, and Risk Assessment
The levels of 16 polycyclic aromatic hydrocarbons (PAHs) were investigated in 27 upper layer (0-25 cm) soil samples collected from the Dagang Oilfield (China) in April 2013 to estimate their distribution, possible sources, and potential risks posed. The total concentrations of PAHs (∑PAHs) varied between 103.6 µg·kg(-1) and 5872 µg·kg(-1), with a mean concentration of 919.8 µg·kg(-1); increased...
متن کاملPolycyclic aromatic hydrocarbons (PAHs) in atmospheric dustfall from the industrial corridor in Hubei Province, Central China.
Thirty atmospheric dustfall samples collected from an industrial corridor in Hubei Province, central China, were analyzed for 16 USEPA priority polycyclic aromatic hydrocarbons (PAHs) to investigate their concentrations, spatial distributions, sources, and health risks. Total PAH concentrations (ΣPAHs) ranged from 1.72 to 13.17 µg/g and averaged 4.91 µg/g. High molecular weight (4-5 rings) PAHs...
متن کامل