重金属污染和农业土壤潜在的生态风险评估
Muhammad Saleem1, David Pierce2, Yuqiang Wang2
1Department of Pathology, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58202, USA.
Journal of xenobiotics
|May 28, 2024
概括
北达科他州农田土壤中的重金属,包括 (As) 和 (Cd),显示积累和潜在的生态风险. 持续监测对于消费者健康和环境保护至关重要.
科学领域:
- 环境科学 环境科学
- 地质化学 地质化学
- 土壤科学 土壤科学
背景情况:
- 重金属污染带来了由于毒性和生物积累的全球风险.
- 评估土壤重金属的含量对于了解环境健康和农业安全至关重要.
研究的目的:
- 为了确定基线重金属含量,生态风险,以及北达科他州格兰福克斯县农田土壤中的来源.
- 评估 (As) 和 (Cd) 的污染及其潜在的生态影响.
主要方法:
- 在酸性消化后使用ICP-MS分析了11种重金属的表面土壤样本.
- 使用了统计分析,包括主要组件分析 (PCA) 和分层集群分析 (HCA).
- 计算了污染因子 (Cf),地质积累指数 (Igeo),丰富因子 (EF),生态风险因子 (Er) 和潜在生态风险指数 (PERI).
主要成果:
- 铁 (Fe) 是最丰富的金属,而 (Hg) 是最少的.
- (As) 和 (Cd) 呈现出相当大的污染和显著的缩.
- (Cd) 构成相当大的生态风险,与其他分析的金属不同.
结论:
- 研究区域的土壤显示出和的积累,对作物积累和消费者健康有潜在的风险.
- 石质源是金属含量的主要贡献者,其中一些超过国际准则.
- 建议进行持续的环境监测,以管理潜在的健康和生态影响.
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