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在中国的地表水域中典型的酸盐的空间分布和慢性生态风险评估

Yuhang Dou¹, Weixuan Hu¹, Jing Wang¹

¹School of Environmental Science and Safety Engineering, Tianjin University of Technology, 391 Binshui West Rode, Xiqing District, Tianjin, 300384, China.

Bulletin of environmental contamination and toxicology

|December 15, 2024

概括

中国水域的酸盐 (PAE) 构成生态风险. 双甲酸盐 (DBP),二甲基甲酸盐 (DEHP) 和丁甲酸盐 (BBP) 对水生生物构成最大威胁,特别是在,黄浦和珍珠河.

科学领域:

环境化学环境化学
生态毒理学生态毒理学
评估水质水质的评估.

背景情况:

甲酸 (PAE) 是常见的增塑剂,它们在水生生态系统中的残留存在引起了人们对慢性生态风险的担忧.
了解PAE在中国地表水中的空间分布和生态影响对于环境保护至关重要.

研究的目的:

分析中国地表水域中五种典型的PAE (DBP,DEHP,BBP,DEP,DMP) 的空间分布.
评估这些PAE对水生生物构成的慢性生态风险.
根据PAE度,确定中国的高风险河流系统.

主要方法:

对地表水样本的分析以确定五种PAE的度:迪布甲酸盐 (DBP),二甲基甲酸盐 (DEHP),丁甲酸盐 (BBP),二甲基甲酸盐 (DEP) 和二甲基甲酸盐 (DMP).
在中国的各种河流系统中绘制PAE度的空间分布图.
应用物种灵敏度分布 (SSD) 曲线,使用十年的数据计算每种PAE影响5%水生物种的慢性危险度 (PNEC5).

主要成果:

河的PAE度最高,在5~79.8μg/L之间.
双甲酸 (DBP) 是中国地表水域中检测到的最丰富的PAE.
计算的PNEC5值表明,DBP (0.018 mg/L),DEHP (0.022 mg/L) 和BBP (0.062 mg/L) 对水生生物构成最严重的威胁.

结论:

DBP,DEHP和BBP被确定为在中国对水生生物构成最大生态威胁的PAE.
在,黄浦和珍珠河中,PAE带来了高的生态风险,需要有针对性的管理策略.
建议进行进一步的研究和监测,以减轻与中国地表水域PAE相关的慢性生态风险.

关键词:

生态风险生态风险甲酸 Ester 是一种甲酸.来源分配的分配方式空间分布的空间分布一种物种的敏感度分布.

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