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沉积式PFAS在历史受污染的织废物场所潜在的长期影响的描述

Jarod Snook¹, Jitka Becanova¹, Simon Vojta¹

¹Graduate School of Oceanography, University of Rhode Island, 215 S Ferry Road, Narragansett, Rhode Island 02882, United States.

ACS ES&T water

|January 15, 2026

概括

织厂的留水池是和多甲基物质 (PFAS) 污染的重要来源. 这些持久污染物可以在沉积物中存在100多年,不断影响河流.

科学领域:

环境化学环境化学
环境科学环境科学
地质化学地质化学

背景情况:

和多醇基物质 (PFAS) 是广泛存在的环境污染物.
历史上受污染的地点,如织厂废物保留池,作为PFAS的持续来源.
这些池中的PFAS可以污染相邻的河流,河口和沿海水域.

研究的目的:

调查织厂的保留池作为PFAS污染的长期来源.
评估PFAS从沉积物到水中的流动性和质量流.
为了确定各种PFAS从受污染的沉积物中脱落的脱落时间.

主要方法:

用水的被动采样来测量PFAS度.
沉积物化以分析底层沉积物中的PFAS.
使用田间沉积物和水的实验室衍生分区系数 (Kd).
从沉积物中估计PFAS质量流和脱落时间.

主要成果:

保持池1显示了更高的PFAS污染 (高达26 ng/L的PFOA和74 ng/g的PFTrDA).
PFAS分区系数 (log Kd) 在1到5之间,表明沉积物中的储存量很大.
据估计,PFAS从沉积物中流失的流量在5至228μg m-2年-1之间,某些化合物的脱吸时间超过100年.

结论:

织厂的保留池作为PFAS的持续,长期来源,对邻近的水生生态系统起到作用.
沉积物充当PFAS的重要储库,缓慢释放到水柱中.
未经处理的保留池构成 PFAS 河流污染的持续风险.

关键词:

在PFAS中,有很多方法.我们的环境环境环境环境环境环境环境环境人类健康人类健康人类健康质量流量量流量量流量量流量.沉积物的沉积物

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