京津冀地区表层土壤多环芳烃含量及来源分析
首发时间:2023-01-12
摘要:京津冀地区作为我国的"首都经济圈",随着工业化、城市化的发展,表层土壤多环芳烃污染越来越受到全社会的关注。本研究通过搜集2000年以来有关京津冀地区表层土壤的相关研究,对筛选出的28篇文献采集数据进行统计,运用污染物特征比值和主成分回归分析判断其来源。结果表明,京津冀地区表层土壤中PAHs含量平均值为692.25 μg kg-1,中位值为700.29 μg kg-1,与其它地区相比,处于中等水平;16种PAHs单体含量中菲(Phe)的含量最高,苊烯(Acy)的含量最低;表层土壤中PAHs组成以高环为主(4环及以上),占比将近70%,且北京和天津地区PAHs浓度相当,但远高于河北地区;源解析结果表明表明京津冀地区表层土壤PAHs主要来源于石油、生物质和煤的高温燃烧。本研究为京津冀地区土壤环境质量评价和标准制定提供参考。
关键词: 环境科学 京津冀地区 表层土壤 PAHs污染水平 源解析
For information in English, please click here
Analysis on the Content and Source of Polycyclic Aromatic Hydrocarbons in Surface Soils in the Beijing-Tianjin-Hebei Region
Abstract: 【Objective】Beijing-Tianjin-Hebei region as China\'s "capital economic circle", with the development of industrialization and urbanization, surface soil polycyclic aromatic hydrocarbon pollution has been more and more attention of the whole society. 【Method】By collecting relevant studies on surface soil in Beijing-Tianjin-Hebei area since 2000, this study counted 28 documents collected by screening, and used the pollutant characteristic ratio and the main component regression analysis to determine its source. 【Result】The results showed that the average content of PAHs in surface soil in Beijing-Tianjin-Hebei area was 692.25 μg kg-1 and the median value was 700.29 μg kg-1, which was at a moderate level compared with otheAnalysis on Analysis on the Content and Source of Polycyclic Aromatic Hydrocarbons in Surface Soils in the Beijing-Tianjin-Hebei Regionthe Content and Source of Polycyclic Aromatic Hydrocarbons in Surface Soils in the Beijing-Tianjin-Hebei Regionr regions. Of the 16 PAHs monomer content, Phe had the highest content and Acy had the lowest content. The composition of PAHs in surface soil is mainly high ring (4 rings and above), accounting for nearly 70%, and the concentration of PAHs in Beijing and Tianjin is equivalent, but much higher than in Hebei. The source analysis results show that the surface soil PAHs in Beijing-Tianjin-Hebei area mainly come from the high temperature combustion of petroleum, biomass and coal. This study provides reference for soil environmental quality evaluation and standard-setting in Beijing-Tianjin-Hebei area.
Keywords: Environmental Science Beijing-Tianjin-Hebei region Surface soil PAHs pollution levels Source resolution
基金:
引用
No.****
同行评议
勘误表
京津冀地区表层土壤多环芳烃含量及来源分析
评论
全部评论