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硫胺基诱使用的高甲硫酸在环境中的发生及其生态毒理风险

Yago Guida¹, Robson Rolland Monticelli Barizon², Fábio Kummrow³

¹Laboratório de Micropoluentes Jan Japenga, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Cidade Universitária, 21941-902, Rio de Janeiro, RJ, Brazil.

Environmental research

|May 15, 2025

概括

硫胺在农业土壤中降解为 perfluorooctanesulfonic 酸 (PFOS). 在地表水和地下水中检测到PFOS污染,超过环境质量标准,对水生生物构成风险.

科学领域:

环境化学环境化学
环境科学环境科学
生态毒理学生态毒理学

背景情况:

硫胺是一种杀虫剂,在有氧条件下降解为 perfluorooctanesulfonic 酸 (PFOS),包括巴西农业土壤.
PFOS是一种持久性有机污染物,具有已知的环境和健康问题.
农业区,特别是那些用硫胺为诱用于林业的农业区,是PFOS污染的潜在热点.

研究的目的:

调查PFOS及其前体在硫黄胺应用的农业地区的环境存在情况.
评估PFOS污染对水生生态系统带来的潜在风险.

主要方法:

从选定的微型流域收集地表水,地下水和沉积物样本.
使用超高性能液态染色学对PFOS及其前体进行分析,并与三重四极质谱仪相结合.
使用风险系数 (RQ) 方法进行风险评估,与欧盟的环境质量标准相比较.

主要成果:

在地表水样本中经常检测到PFOS (76%),其度高达50.6 ng/L.
还检测到EtFOSA和FOSA,尽管频率和度较低.
在森林地区观察到地下水污染,可能来自EtFOSA生物降解,沉积物样本显示季节性变化.
表面水中的所有测量PFOS度都超过了欧盟的年平均环境质量标准 (AA-EQS).

结论:

硫胺的应用导致农业和林业地区的PFOS环境污染.
PFOS污染对水生生物群构成潜在风险,超过了既定的环境质量标准.
持续监测,监管行动和开发更安全的害虫防治替代品至关重要.

关键词:

环境污染环境污染环境风险评估环境风险评估永远的化学品永远的化学品杀虫剂是一种杀虫剂.-和多基基物质 (PFAS) 的使用.perfluoroalkyl 酸 (PFAA) 是一种含有高酸的化合物.杀虫剂是一种杀虫剂.

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