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全氟辛烷磺酸盐(PFOS)对其它有机污染物在沉积物上吸附的影响

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Indexed by:期刊论文

Date of Publication:2011-02-15

Journal:环境化学

Included Journals:PKU、ISTIC、CSCD

Volume:30

Issue:2

Page Number:466-470

ISSN No.:0254-6108

Key Words:PFOS;硝基苯;菲;吸附

Abstract:采用平衡振荡实验方法,研究了不同浓度的全氟辛烷磺酸盐(PFOS)对两种有机污染物(硝基苯和菲)在沉积物上吸附的影响.结果表明,单组分PFOS在沉积物上是非线性吸附;与其它有机污染物共存时,随着PFOS浓度的升高,硝基苯的吸附量先减少后增加,而菲的吸附量则先增加后减少.PFOS对其它有机污染物吸附的影响规律与有机污染物的吸附系数有关.PFOS的竞争吸附是使有机污染物吸附量减少的主要原因,PFOS对其它有机污染物吸附的影响是充当有机质增加吸附和竞争降低吸附两种作用叠加的结果.

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