在地中海气候条件下,畜牧制药的捕获规模快速转移
Nico Hachgenei1, Nicolas Robinet2, Christine Baduel1
1Univ. Grenoble Alpes, CNRS, INRAE, IRD, Grenoble INP, IGE, Grenoble, France.
The Science of the total environment
|August 31, 2023
概括
像芬班达 (FBZ) 和梅班达 (MBZ) 这样的畜牧药物可以在地中海气候中的强烈风暴期间污染溪流. 事件驱动的转移会导致暂时的水质恶化,突出显示牧场下水的风险.
科学领域:
- 环境化学环境化学
- 水生毒理学 水生毒理学
- 农业科学 农业科学
背景情况:
- 畜牧制药对水生生态系统构成风险.
- 地中海气候的特点是干燥的夏季和强烈的秋季风暴.
- 药物转移到地表水中是一个重大的环境问题.
研究的目的:
- 研究地中海气候条件对药品残留物流向河流转移的影响.
- 评估地表水中兽医药物污染的风险,以水域规模为单位.
- 在不同的水文条件下模拟特定兽药 (芬本达,梅本达,伊弗梅克丁) 的转移.
主要方法:
- 通过采访农民,确定经常使用的兽药及其应用模式.
- 选择了芬班达 (FBZ),梅班达 (MBZ) 和伊弗梅克丁 (IVM) 作为代表不同牲畜和分析可行性的模型化合物.
- 在洪水事件期间,在低流量和高频率采样期间监测药品残留物的溪水.
主要成果:
- 在低流量期间,选择的兽医药物无法检测到.
- 在洪水事件中,班达 (FBZ) 和梅班达 (MBZ) 在短时间内达到高度.
- 药物转移是事件驱动的,导致暂时但显著的水质恶化,FBZ度超过预测无效度 (PNEC) 的355倍.
结论:
- 在风暴期间,兽医药物的事件驱动的转移对水生生态系统构成重大风险.
- 牧场管理实践需要仔细考虑,特别是避免在潮湿的条件下靠近水体.
- 低频水质监测不足以在洪水事件期间捕获暂时高度的药品.
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