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    Fe2O3 as indicator of heavy metal enrichment in Zhujiang (Pearl River) estuary sediments

    A part of the heavy metals in estuary and coastal zone occurs naturally in the environment; the other part is due to human activity; so the directly measured concentration of heavy metal does not automatically...

    **ao-tong Peng, Huai-yang Zhou, Jian-ming Pan in Journal of Zhejiang University-SCIENCE A (2002)