亚马逊微盆地水质的变化:生态和人类健康的影响
Louisiane Farias Batista1, Thiago Shinaigger Rocha do Nascimento1, Igor Costa2
1Bachelor of Science and Water Technology, Federal University of Western Pará, Av Mendonça Furtado, 2946, Santarém, PA 68040-070, Brazil.
Journal of water and health
|April 1, 2024
概括
亚马逊地区的城市增长迅速降低了水质. 一个新的指数揭示了金属的高生态风险,需要持续监测,尽管人类健康风险较低.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 水资源管理 水资源管理
背景情况:
- 亚马逊地区无计划的城市增长严重影响了水资源质量.
- 季节性变化 (潮湿和干燥) 显著影响水生生态系统中的污染物行为.
研究的目的:
- 评估Juá流域的生态和人类健康风险.
- 提出一种新的生态指数,即水生生物质量指数 (QIAL),用于评估对水生生物的污染风险.
主要方法:
- 在2020年至2021年期间,在Juá流域的六个点进行了采样.
- 分析了物理化学参数,主要离子,金属 (包括Cr III和Cr VI) 和总.
- 计算了水生生物质量指数 (QIAL),以评估生态风险.
主要成果:
- 污染物度,特别是化物 (Cl),在雨季显著上升,超过巴西法律限制的307倍以上.
- 水生生物质量指数 (QIAL) 显示,等金属对生物群的生态风险很高.
- 人类健康风险评估显示风险低,但这与基本卫生设施不足相对应.
结论:
- 由于金属度升高,Juá流域面临着相当大的生态风险,特别是在雨季.
- 尽管发现人体健康直接风险很低,但基本卫生设施的缺乏凸显了亚马逊地区持续监测城市水资源的迫切需要.
- 拟议的水生生物质量指数 (QIAL) 为评估和管理受影响流域的生态威胁提供了有价值的工具.
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