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揭露隐藏的风险:水产养殖系统中的农药残留物

Weijia Gan¹, Rongrong Zhang¹, Zhi Cao¹

¹State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo 315211, PR China; Key Laboratory of Aquacultural Biotechnology (Ningbo University), Ministry of Education, School of Marine Sciences, Ningbo University, Ningbo 315211, PR China.

The Science of the total environment

|April 13, 2024

概括

这项研究发现池水产养殖中农药含量很高,特别是在早期. 虽然整体生态风险较低,但农药混合物对水生生物构成风险,强调需要更好的监测和处理.

科学领域:

环境化学环境化学
水产养殖科学水产养殖科学
生态毒理学生态毒理学

背景情况:

农药污染在水产养殖系统中越来越令人担忧.
了解农药存在和生态风险对于可持续水产养殖至关重要.

研究的目的:

评估池 (PA),温室 (GA) 和赛道 (RA) 水产养殖中的农药存在和生态风险.
评估尾水处理系统对除草剂清除的有效性.
识别高风险农药并推监测优先级.

主要方法:

在不同阶段对PA,GA和RA系统中的79种农药进行系统评估.
对农药度的分析和主要残留物的鉴定.
评估四个尾水处理系统的农药清除效率.
对水产养殖和尾水环境进行全面的生态风险评估.

主要成果:

检测到16种除草剂和2种杀菌剂,其度在8.33至3248.45 ng/L之间.
池水产养殖 (PA) 显示的农药度明显高于GA和RA系统.
普罗米特林,西米特林,阿特拉和提胺是主要的杀虫剂;早期水产养殖阶段的度最高.
再循环的尾水处理系统在清除农药方面最有效.
总体而言,生态风险最小,但农药混合物对藻类构成高风险,对无脊椎动物和鱼类构成中等风险.

结论:

农药污染在各种水产养殖系统和阶段有很大差异,PA和早期阶段需要集中注意.
西梅特林和普罗梅特林是高风险的农药,需要优先监测和管理.
有效的尾水处理,特别是循环系统,对于减轻农药污染至关重要.
该研究为开发水产养殖中标准化农药监测和管理策略提供了关键数据.

关键词:

水产养殖模式水产养殖模式不同的水产养殖阶段.杀虫剂是一种杀虫剂.风险评估风险评估风险评估尾水处理系统尾水处理系统

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