量化气候变化对饮用水中的农药风险的影响
J Harmon O'Driscoll1, M G Healy2, A Siggins3
1Discipline of Civil, Structural and Environmental Engineering, School of Engineering, University College Cork, Ireland.
The Science of the total environment
|March 18, 2025
概括
气候变化将增加饮用水中的农药污染,增加人类健康风险. 一个新的模型显示,到2100年,风险将大幅增加,特别是在爱尔兰西南部,这突显了需要基于气候的农药管理.
科学领域:
- 环境科学 环境科学
- 公共卫生 公共卫生
- 气候科学 气候科学
背景情况:
- 气候变化改变了天气模式,影响农药命运,运输和污染水平.
- 现有的研究在评估气候变化对农药相关人类健康风险的影响方面是有限的.
- 监管框架和适应策略还没有能力在不断变化的气候条件下处理未来的农药风险.
研究的目的:
- 开发一种新的概率模型来量化气候变化对农药相关人类健康风险的影响.
- 在不同的气候场景下评估这些影响 (RCP 4.5和RCP8.5) 在爱尔兰.
- 确定健康风险的区域差异以及气候变化如何加剧这些风险.
主要方法:
- 开发一种概率模型来模拟农药的命运和运输.
- 整合气候场景数据 (RCP 4.5和RCP8.5) 用于未来的预测.
- 模型应用于研究爱尔兰东北部和西南部的地点.
主要成果:
- 预计在所有气候情景下,饮用水中的农药度将越来越频繁地超过法律限制.
- 人类健康风险估计平均增加18% (RCP4.5,2050) 和38% (RCP8.5,2100).
- 观察到健康风险的区域差异很大,西南地区的风险更高,气候变化加剧了风险.
结论:
- 预计气候变化将增加爱尔兰与农药有关的人类健康风险,区域差异显著.
- 尽管增加了,总体风险可能仍然很低,但适应策略至关重要.
- 开发的概率框架可以在全球范围内应用,在不断变化的气候条件下为农药管理和公共卫生战略提供信息.
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