Assessment of heavy metals contamination and water quality characterization in the Nanming River, Guizhou Province
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ORIGINAL PAPER
Assessment of heavy metals contamination and water quality characterization in the Nanming River, Guizhou Province Zhenhui Yuan
. Qiuhua Li . Xinyang Ma . Mengshu Han
Received: 23 January 2020 / Accepted: 27 August 2020 Ó Springer Nature B.V. 2020
Abstract The analysis to assess the water quality and potential ecological risks in sediments was carried out by means of the distribution characteristics of nutrient properties and heavy metals in water, and heavy metals in sediments from the Nanming River. The results from nutrient properties demonstrated that the majority of TN and TP exceeded the permissible limit and concentrated within the study area. The concentrations of heavy metal in water were lower than the permissible limits but may pose potential threat to aquatic ecosystems. Based on the potential
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10653-020-00710-3) contains supplementary material, which is available to authorized users. Z. Yuan Q. Li (&) X. Ma Key Laboratory for Information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guiyang 550001, People’s Republic of China e-mail: [email protected] Z. Yuan Q. Li X. Ma Guizhou International Science and Technology Cooperation Base-International Joint Research Centre for Aquatic Ecology, Guiyang 550001, People’s Republic of China M. Han Key Laboratory for Information and Computing Science of Guizhou Province, Guizhou Normal University, Guiyang 550001, People’s Republic of China
ecological risk results of heavy metals in sediments, Cd posed risk to ecological environment, and the serious contaminations mainly existed in the center of Guiyang City. The multivariate statistical analyses were used to support the idea that the Upstream Area and Midstream Area were significantly dominated by NH4?, TP, TN and CODMn in water. Furthermore, landscape characteristics and hydrology condition better explained the certain trend of water quality. Finally, identifying relationship between nutrient properties and heavy metals that are key ecological components of ecosystem can potentially aid the advances for restoration of geochemical transformations and give rise to river restoration efforts. Keywords Heavy metals Nutrient properties Ecological risk Nanming River Guizhou Province
Introduction Heavy metal contamination in ecosystems is derived from anthropogenic activities and geochemical processes (Li et al. 2007). Heavy metals migrate primarily through the water–soil interface and the water–atmosphere interface (Ali et al. 2016; Varol 2011). Once heavy metals enter the river, they are rapidly diluted and delivered long-distance transport over several hundreds of kilometers, then accumulated in aquatic
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Environ Geochem Health
organisms and deposited in sediment (Audry et al. 2004; Resongles et al. 2014; Tam and Wong 2000). Furthermore, due to the diversities of exte
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