文章基本信息

标题：Status of Heavy Metal in the Lower Gangetic Delta: Implication of Acidificationon Compartmentation
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作者：Abhijit Mitra ; Sufia Zaman ; Harekrishna Jana 等
期刊名称：Journal of Environmental Analytical Chemistry
电子版ISSN：2380-2391
出版年度：2014
卷号：1
期号：2
页码：1-4
DOI：10.4172/2380-2391.1000111
语种：English
出版社：OMICS International
摘要：Increased atmospheric carbon dioxide concentrations are causing greater dissolution of carbon dioxide into the estuarine water, which is the key factor behind today’s ongoing ocean acidification and subsequent compartmentation of heavy metals in the system. We conducted a long term survey on temporal variation of pH and its impact on heavy metals in the Matla estuary, situated in the central part of Indian Sundarbans. The present study indicates the key role of acidification (major driver) in the exchange of heavy metals from sediment compartment to the overlying aquatic phase. The lowering of pH favours the process of dissolution of selected heavy metals (Zn, Cu and Pb) and promotes the transference of metallic compounds from the sediment to the aquatic phase.
关键词：Acidification;Surface water pH;Dissolved heavy metals;Biologically available heavy metals in the sediment