title: Coke industry and steel metallurgy as the source of soil contamination by technogenic magnetic particles, heavy metals and polycyclic aromatic hydrocarbons.
abstract: Application of integrated magnetic, geochemical and mineralogical methods for qualitative and quantitative assessment of forest topsoils exposed to the industrial emissions was the objective of this manuscript. Volume magnetic susceptibility (κ) in three areas of southern Poland close to the coke and metallurgical plants was measured directly in the field. Representative topsoil samples were collected for further chemical and mineralogical analyses. Topsoil magnetic susceptibility in the studied areas depended mainly on the content of technogenic magnetic particles (TMPs) and decreased downwind at increasing distance from the emitters. In the vicinity of coking plants a high amount of polycyclic aromatic hydrocarbons (PAHs) was observed, especially the most carcinogenic ones with four- and five-member rings. No significant concentration of TMPs (estimated on the base of κ values) and heavy metals (HM) was observed in area where the coke plant was the only pollution source. In areas with both coke and metallurgical industry, higher amounts of TMPs, PAHs and HM were detected. Morphological and mineralogical analyses of TMPs separated from contaminated soil samples revealed their high heterogeneity in respect of morphology, grain size, mineral and chemical constitution. Pollution load index and toxicity equivalent concentration of PAHs used for soil quality assessment indicated its high level of pollution.
authors.affiliation: Institute of Environmental Engineering, Polish Academy of Sciences, 34 Sklodowska-Curie Str., 41-819 Zabrze, Poland. Electronic address: marzena.rachwal@ipis.zabrze.pl.
authors.forename: Marzena
authors.initials: M
authors.lastname: Rachwał
authors.affiliation: Institute of Environmental Engineering, Polish Academy of Sciences, 34 Sklodowska-Curie Str., 41-819 Zabrze, Poland. Electronic address: tadeusz.magiera@ipis.zabrze.pl.
authors.forename: Tadeusz
authors.initials: T
authors.lastname: Magiera
authors.affiliation: Institute of Environmental Engineering, Polish Academy of Sciences, 34 Sklodowska-Curie Str., 41-819 Zabrze, Poland. Electronic address: malgorzata.wawer@ipis.zabrze.pl.
authors.forename: Małgorzata
authors.initials: M
authors.lastname: Wawer
mesh_terms: D003077:Coke; D007221:Industry; D059346:Magnets / Q000032:analysis* / Q000737:chemistry; D008669:Metallurgy; D019216:Metals, Heavy / Q000032:analysis*; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D012987:Soil / Q000737:chemistry; D012989:Soil Pollutants / Q000032:analysis; D013232:Steel / Q000737:chemistry*
chemical_list: D003077:Coke; D019216:Metals, Heavy; D011084:Polycyclic Aromatic Hydrocarbons; D012987:Soil; D012989:Soil Pollutants; D013232:Steel
keywords: Coke dust emissions; Heavy metals; Magnetic susceptibility; Polycyclic aromatic hydrocarbons; Soil pollution; Toxicity equivalent concentration