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Tungsten- and cobalt-dominated heavy metal contamination of mangrove sediments in Shenzhen, China

Xu, S, Lin, C, Qiu, P, Song, Y, Yang, W, Xu, G, Feng, X, Yang, Q, Yang, X and Niu, A 2015, 'Tungsten- and cobalt-dominated heavy metal contamination of mangrove sediments in Shenzhen, China' , Marine Pollution Bulletin, 100 (1) , pp. 562-566.

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A baseline investigation into heavy metal status in the mangrove sediments was conducted in Shenzhen, China where rapid urban development has caused severe environmental contamination. It is found that heavy metal contamination in this mangrove wetland is characterized by the dominant presence of tungsten and cobalt, which is markedly different from the neighboring Hong Kong and other parts of the world. The vertical variation pattern of these two metals along the sediment profile differed from other heavy metals, suggesting an increasing influx of tungsten and cobalt into the investigated mangrove habitat, as a result of uncontrolled discharge of industrial wastewater from factories that produce or use chemical compounds or alloys containing these two heavy metals. Laboratory simulation experiment indicated that seawater had a stronger capacity to mobilize sediment-borne tungsten and cobalt, as compared to deionized water, diluted acetic, sulfuric and nitric acids.

Item Type: Article
Journal or Publication Title: Marine Pollution Bulletin
Publisher: Elsevier
Refereed: Yes
ISSN: 0025-326X
Related URLs:
Funders: Non funded research
Depositing User: C Lin
Date Deposited: 17 Sep 2015 16:25
Last Modified: 22 Mar 2016 09:25

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