Abstract:
: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.
journal_name
Mar Pollut Bulljournal_title
Marine pollution bulletinauthors
Xu S,Lin C,Qiu P,Song Y,Yang W,Xu G,Feng X,Yang Q,Yang X,Niu Adoi
10.1016/j.marpolbul.2015.08.031subject
Has Abstractpub_date
2015-11-15 00:00:00pages
562-566issue
1eissn
0025-326Xissn
1879-3363pii
S0025-326X(15)00535-4journal_volume
100pub_type
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