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https://open.uns.ac.rs/handle/123456789/18015
Назив: | Distribution of organic and inorganic substances in the sediments of the “Great Bačka Canal”, a European environmental hotspot | Аутори: | Krčmar Dejan Dubovina Miloš Nenad Grba Pešić Vesna Watson Malcolm Tričković Jelena Dalmacija Božo |
Датум издавања: | 2017 | Часопис: | Science of the Total Environment | Сажетак: | © 2017 Elsevier B.V. The Great Bačka Canal in Serbia is one of the most polluted waterways in Europe. Surface sediments from the canal were subject to systematic annual monitoring between 2007 and 2014 at 33 representative sampling sites. Eight heavy metals (Ni, Zn, Cd, Cr, Cu, Pb, As and Hg), mineral oils, 16 EPA PAHs and selected pesticides and polychlorinated biphenyls (PCB) were monitored. This study aims to evaluate the quality of the sediments and determine the potential ecological risks in order to establish pollutants of interest. The spatial and temporal influence of different and intense sources of pollution are investigated. The analysis includes multivariate statistical methods (factor analysis of principal component analysis (PCA/FA)) in order to assess the extent and origin (anthropogenic or natural, geogenic sources) of the contaminants detected in the sediment samples and the risks the present to the environment. Various sources, predominantly the food industry, were found to be responsible for most of the contamination by Cd, Cu, Cr and Zn, the mineral oils and PAHs (dibenzo[a,h]anthracene and benzo[a]pyrene contributed 86.0% of the total between 2007 and 2014). In contrast, the As was convincingly of geogenic origin, and the Hg, Pb and Ni present exhibit dual origins. Cd and Cu significantly raise the levels of potential ecological risk at all sampling locations, demonstrating the long-term effects of bioaccumulation and biomagnification. Significantly, the results of this work indicate that Cu, As and dibenzo[a,h]anthracene should be added to the EU watch list of emerging contaminants. This is supported by significant national and similar environmental data from countries in the region. | URI: | https://open.uns.ac.rs/handle/123456789/18015 | ISSN: | 0048-9697 | DOI: | 10.1016/j.scitotenv.2017.05.251 |
Налази се у колекцијама: | PMF Publikacije/Publications |
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