在西安的地表土壤中,甲酸乙烯 (PAE) 的含量和组成
1Ecological and Environmental Engineering Branch, Yangling Vocational and Technical College, Shaanxi Yangling, People's Republic of China.
Environmental technology
|March 4, 2025
概括
在西安城市土壤中测量了酸盐 (PAE). 一些PAE的度超过了纽约州的标准,交通和工业区的污染水平最高.
科学领域:
- 环境科学 环境科学
- 分析化学 分析化学
- 城市生态城市生态学
背景情况:
- 甲酸 (PAE) 是城市环境中常见的污染物.
- 了解PAE在城市表面土壤中的积累对于环境风险评估至关重要.
- 选择了西安的城市地表土壤来调查PAE污染.
研究的目的:
- 确定西安城市地表土壤中美国环保署控制的六种PAE的含量和特征.
- 将PAE水平与环境标准和其他城市进行比较.
- 分析PAE总数 (6PAE) 在不同功能城市区域的分布.
主要方法:
- 高性能液态染色学 (HPLC) 用于对六种特定的PAE进行定量分析.
- 从西安的城市表面收集了土壤样本.
- 进行了统计分析,以评估积累和组成特征.
主要成果:
- DMP,DEP,BBP,DnBP,DEHP和DnOP的平均度分别为0.10,0.05,0.05,0.52,0.77,0.05毫克·公斤-1. 这些度均为0.10毫克·公斤-1.
- 西安地表土壤中平均PAE总量 (6PAE) 为1.37 mg·kg−1,范围为0.1919.15 mg·kg−1.1.
- 西安的PAE水平超过了纽约州对DMP,DEP,DnBP和DEHP的标准,交通和工业区的PAE水平最高.
结论:
- 西安的城市地表土壤表现出大量的PAE污染,某些化合物超过了监管限制.
- 西安的PAE水平与其他城市的PAE水平相当或高于其他城市的PAE水平,特别是DPP和BBP.
- PAE的分布不均,在交通和工业区发现的度更高,表明这些是污染的主要来源.
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