University of Novi Sad, Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg Dositeja Obradovica 3, 21000 Novi Sad, Serbia.
University of Novi Sad, Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg Dositeja Obradovica 3, 21000 Novi Sad, Serbia.
Environ Pollut. 2018 May;236:773-784. doi: 10.1016/j.envpol.2018.02.014.
This research is designed to determine the level and types of pollution in the highly contaminated sediments of the international Begej canal in Timiş district, Romania and north-eastern Serbia. The cross-border canal stretch investigated is currently not navigable, but represents an important waterway between the Danube River in Serbia and the city of Timisoara. Surface sediments were monitored annually from 2008 to 2016 at 36 representative sampling locations, with a wide range of analyses, including eight heavy metals of long-term monitoring concern (Ni, Zn, Cd, Cr, Cu, Pb, As and Hg) and the 16 USEPA PAHs. The purpose of this study was to determine the diversity and impact of anthropogenic and natural sources of pollution at the pollution hot spots on the canal: at the Itebej lock (near the border with Romania) and downstream at the Klek lock. Sediment quality and ecological risk were assessed in order to determine pollutants of concern. Several multi-proxies were applied (e.g. geo-accumulation index (I), ecological risk index (RI) and total benzo[a]pyrene equivalent (B[a]P)). To determine and predict trends, multivariate statistical methods (factor analysis of principal component analysis (PCA/FA)) were carried out on the organic and inorganic parameters analysed. In the near-border region, acute and significant ecological impacts were observed. The heavy metals Hg, Cr, Pb, Cu and Zn, and the carcinogenic PAH dibenzo[a,h]anthracene, were historically the most frequently detected harmful substances to biota in this and the wider Pannonia region. This is the first long-term study to quantify and derivate the most frequently detected harmful substances of concern for this and similar sites in the wider region, and is additionally supported by significant national and similar environmental data from previous studies in the region.
本研究旨在确定罗马尼亚蒂米什县和塞尔维亚东北部污染严重的贝日杰国际运河底泥的污染水平和类型。所研究的跨境运河目前无法通航，但它是塞尔维亚多瑙河和蒂米什瓦拉市之间的一条重要航道。2008 年至 2016 年期间，每年在 36 个具有代表性的采样点监测表层沉积物，进行了广泛的分析，包括 8 种长期监测关注的重金属（Ni、Zn、Cd、Cr、Cu、Pb、As 和 Hg）和 16 种 USEPA PAHs。本研究的目的是确定运河污染热点处人为和自然污染源的多样性和影响：在 Itebej 水闸（靠近罗马尼亚边境）和下游的 Klek 水闸。为了确定关注污染物，评估了沉积物质量和生态风险。应用了几种多指标（例如，地质累积指数（I）、生态风险指数（RI）和总苯并[a]芘当量（B[a]P））。为了确定和预测趋势，对分析的有机和无机参数进行了多元统计方法（主成分分析（PCA）/因子分析（FA））。在近边界地区，观察到了严重的急性生态影响。汞（Hg）、铬（Cr）、铅（Pb）、铜（Cu）和锌（Zn）等重金属以及致癌多环芳烃苯并[a]蒽是该地区及更广泛的潘诺尼亚地区生物群中历史上最常检测到的有害物质。这是首次对该地区和类似地区的最常检测到的有害关注物质进行量化和推导的长期研究，并且得到了该地区以前研究的大量国家和类似环境数据的支持。
