综合污染分析,污染区域的识别和重金属污染的来源分配在农业土壤中的污染
Fang Xia1, Zefang Zhao2, Xiang Niu3
1School of Life and Environmental Science, Shaoxing University, Shaoxing 312000, China; Zhejiang Provincial Key Laboratory of Watershed Sciences and Health, School of Public Health and Management, Wenzhou Medical University, Wenzhou 325035, China.
Journal of hazardous materials
|December 15, 2023
概括
温州的土壤重金属污染主要来自 (Cd) 和 (Pb). 工业排放,农业化学品和母体材料是关键来源,需要对食品安全进行污染控制.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 地质化学 地质化学
背景情况:
- 全球土壤重金属污染对环境质量和食品安全构成风险.
- 评估土壤污染,识别受污染地区和确定污染源对于有效管理至关重要.
研究的目的:
- 用土壤静态环境能力 (QI) 来评估温州农田的污染风险.
- 识别污染地区并分析不确定性.
- 用正矩阵分解 (PMF) 模型量化分配重金属来源.
主要方法:
- 土壤静态环境能力 (QI) 指数的计算.
- 地理统计方法用于空间分析和不确定性评估.
- 源分配的正矩阵因子化 (PMF) 模型.
主要成果:
- 温州的农业土壤主要受到 (Cd) 和 (Pb) 的污染.
- 根据QI,超过90%的评估区域显示了Zn,Cd和Pb的污染.
- 工业排放 (32.1%),农业化学品 (32.2%) 和基因材料 (35.7%) 被确定为重金属积累的主要原因.
结论:
- 土壤重金属污染,特别是Cd和Pb的污染,是温州农田的一个重要问题.
- 针对人为排放和土壤修复的严格政策对于改善土壤质量和确保食品安全至关重要.
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