九龙江口厦门海区表层沉积物中重金属人为增量的测定
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摘要: 对沉积物的研究已得出普遍的结论:人类活动排放到天然水体中的重金属污染物,通常以相当不稳定的化学形式—非晶格相存在于表层沉积物中,由于重金属在沉积物/水界面存在着大的浓度梯度,当水环境条件发生变化时,这些弱结合态的金属会再度释放进入水体引起水体的二次污染.
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