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Concentrations, sources and spatial distribution of polycyclic aromatic hydrocarbons in soils from Beijing, Tianjin and surrounding areas, North China

机译:北京,天津及华北地区土壤中多环芳烃的浓度,来源和空间分布

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摘要

The concentrations, profiles, sources and spatial distribution of polycyclic aromatic hydrocarbons (PAHs) were determined in 40 surface soil samples collected from Beijing, Tianjin and surrounding areas, North China in 2007, and all sampling sites were far from industrial areas, roadsides and other pollution sources, and across a range of soil types in remote, rural villages and urban areas. The total concentrations of 16 PAHs ranged from 31.6 to 1475.0 ng/g, with an arithmetic average of 336.4 ng/g. The highest PAH concentrations were measured in urban soils, followed by rural village soils and soils from remote locations. The remote-rural village-urban PAH concentration gradient was related to population density, gross domestic product (GDP), long-range atmospheric transport and different types of land use. In addition, the PAH concentration was well correlated with the total organic carbon (TOC) concentration of the soil. The PAH profile suggested that coal combustion and biomass burning were primary PAH sources.
机译:在2007年从北京,天津和华北周边地区收集的40个表层土壤样品中测定了多环芳烃(PAHs)的浓度,分布,来源和空间分布,所有采样点均远离工业区,路边和其他地方。污染源,以及偏远乡村和城市地区的各种土壤类型。 16种多环芳烃的总浓度为31.6至1475.0 ng / g,算术平均值为336.4 ng / g。在城市土壤中,PAH浓度最高,其次是乡村土壤和偏远地区的土壤。偏远乡村-城市多环芳烃浓度梯度与人口密度,国内生产总值(GDP),远距离大气运输和不同类型的土地利用有关。此外,PAH浓度与土壤中的总有机碳(TOC)浓度有很好的相关性。多环芳烃的特征表明,燃煤和生物质燃烧是多环芳烃的主要来源。

著录项

  • 来源
    《Environmental pollution》 |2010年第5期|p.1245-1251|共7页
  • 作者单位

    Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, USA;

    Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, USA Department of Chemistry, Oregon State University, Corvallis, OR 97331, USA;

    Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China;

    Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China;

    Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China;

    Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China;

    Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China;

    Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    soil; PAHs; source diagnostics; Beijing; Tianjin;

    机译:泥;多环芳烃;源诊断;北京;天津;

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