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Trace elements in aquatic environment. Origin, distribution, assessment and toxicity effect for the aquatic biota
Ecohydrology & Hydrobiology ( IF 2.6 ) Pub Date : 2021-02-26 , DOI: 10.1016/j.ecohyd.2021.02.002
Nikola Kolarova , Paweł Napiórkowski

Trace elements contamination and accumulation in bottom sediment represents a risk to environment and aquatic biota. Their anthropogenic or natural discharge, extension and cumulation can cause large scale of ecological destructions. Bioaccumulation and biomagnification is capable of leading to toxic level of these chemical substances in fish and other fresh water organisms (benthos, zooplankton), even when the exposure is low. The fish contamination through trophic structure can cause serious consequences to human health.

The aim of the manuscript was to assemble and summarize the latest literature on the environmental and the aquatic biota effects of trace element contamination of bottom sediments. The article is also a review of new methods for trace elements elimination and their assessment to impact on aquatic organisms. Based on collected scientific publications in last 20 years the most common and important trace elements in aquatic ecosystem are Chromium, Arsenic, Mercury, Cadmium and Copper. These compounds are dangerous for living organisms and can disrupt their homeostasis as well as a cardiovascular, nervous and digestive system. Nowadays exist many instrumental methods, which are available to determine the trace element concentration such as PMF, INNA, BCR, XRF and bioassay. In searched studies the most preferred and used analyse of trace element concentration in aquatic bottom sediments is bioassay. This biological method is good complement to physical and chemical analyses in procedures of sediment quality assessment. Bioassay method can indicate sensitive response of planktonic organisms to various trace elements and provide information about the real risk to aquatic life.



中文翻译:

水生环境中的微量元素。水生生物群的起源、分布、评估和毒性效应

底部沉积物中的微量元素污染和积累对环境和水生生物群构成了风险。它们的人为或自然排放、扩展和累积会造成大规模的生态破坏。生物蓄积和生物放大能够导致鱼类和其他淡水生物(底栖动物、浮游动物)中这些化学物质的毒性水平,即使接触量很低。通过营养结构的鱼类污染会对人类健康造成严重后果。

手稿的目的是收集和总结有关底部沉积物微量元素污染对环境和水生生物群影响的最新文献。文章还回顾了微量元素消除的新方法及其对水生生物影响的评估。根据过去 20 年收集的科学出版物,水生生态系统中最常见和最重要的微量元素是铬、砷、汞、镉和铜。这些化合物对生物体是危险的,会破坏它们的体内平衡以及心血管、神经和消化系统。目前有多种仪器方法可用于测定微量元素浓度,如PMF、INNA、BCR、XRF和生物测定。在搜索研究中,对水生底部沉积物中微量元素浓度的最优选和最常用的分析是生物测定。这种生物方法是对沉积物质量评估程序中物理和化学分析的良好补充。生物测定方法可以指示浮游生物对各种微量元素的敏感反应,并提供有关水生生物真正风险的信息。

更新日期:2021-02-26
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