Presence of polycyclic aromatic hydrocarbons in the environment as a consequence of fossil fuel consumption
2002
Djurisic-Mladenovic, N.
Polycyclic aromatic hydrocarbons (PAH) are ubiquitous organic pollutants, a certain part of which represents the largest class of known environmental carcinogens. The aim of this thesis is to determine the presence of these pollutants in the soil and sediment in Novi Sad (Serbia, Yugoslavia) and its surroundings, and wheat from North Backa (Serbia, Yugoslavia), harvest 2000, as inevitable consequence of modern way of living (intense traffic, industrial emissions, residential heating, waste burning, etc.), and the bombardment of Oil Refinery in 1999. The selection of the method for PAH extraction and determination among the reviewed ones was made. The content of organochlorine compounds and heavy metals were also determined and presented. The obtained experimental data for the mentioned pollutants are compared with the literature reported ones and with the regulations of some European countries (there is no corresponding national regulations), so the contamination level could be estimated. Statistical analysis of certain literature data was done in order to determine if there is some trend in percentage presence of individual PAH compounds relative to their sum concentration in the soil. Also, the linear correlation between log-value of PAH distribution coefficients in octanol/water system, log Kow, and retention indices, I, on one side, and the molecular parameters on the other side, and between soil organic content and sum PAH concentration were examined.
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