Marine Sciences Department, Goa University, Taleigao Plateau, Goa 403206, India.
Marine Sciences Department, Goa University, Taleigao Plateau, Goa 403206, India.
Mar Pollut Bull. 2014 Feb 15;79(1-2):371-8. doi: 10.1016/j.marpolbul.2013.11.013. Epub 2013 Dec 6.
The present study investigated the concentration, distribution and speciation of metals (Fe, Mn, Cu, Pb, Co, Zn and Cr) in sediments of Mumbai region. Pearson's correlation matrix and cluster analyses showed good association of metals with grain size and organic matter. Factor analysis applied to the speciation data helped to identify the role of different sediment fractions in metal retention. The environmental risks of metals, evaluated by sediment quality guidelines, revealed some contamination in the region. However, the Individual and Global Contamination Factors and the Risk Assessment Code, suggested low risk to the aquatic environment, except of Mn in the creek sediments.
本研究调查了孟买地区沉积物中金属(铁、锰、铜、铅、钴、锌和铬)的浓度、分布和形态。皮尔逊相关矩阵和聚类分析显示,金属与粒度和有机质具有良好的相关性。应用于形态数据分析的因子分析有助于确定不同沉积物组分在金属保留中的作用。通过沉积物质量准则评估金属的环境风险表明该地区存在一些污染。然而,个体和总体污染因子以及风险评估代码表明,除了小溪沉积物中的锰外,该地区的水生环境风险较低。