Wpływ emisji wielopieroecieniowych węglowodorów aromatycznych (WWA) z zakładów koksowniczych w Dąbrowie Górniczej (woj. śląskie) na zanieczyszczenie środowiska glebowego

The paper presents results of studies of soil samples for content of sixteen polycyclic aromatic hydrocarbons (PAHs). The studies covered 40 soil samples taken in agricultural areas located nearby coking plant in D1browa Górnicza (Upper Silesia region, Poland). The obtained results showed that contents of PAHs, especially phenanthrene, anthracene, fluoranthene, chrysene, benz(a)anthracene and benz(a)pyrene, exceed admissible environmental pollution levels. Benz(a)pyrene is the most often determinated PAHs compound, because of strong carcinogenic properties. In order to assess the contamination level of the studied soils, the samples were assigned to four classes depending on sum of contents of PAHs (žg/kg). Only 2% of the samples were assigned to the non-contaminated class whereas the remaining 98% of samples had to be classified as contaminated: 54% ads weakly contaminated and 37%—as contaminated (including 17% heavily contaminated). The data made it also possible to carry out statistical evaluation of PAHs content in the investigated soil samples in relation to soil type. The analyses were conducted by the accelerated solvent extraction method and high performance liquid chromatography technique (HPLC). The procedure of soil sampling by "envelope method"is also presented.