Polycyclic aromatic hydrocarbon concentrations in urban soils representing differenct land use categories in Shanghai

Jing Liang, Guangjun Ma, Hailan Fang*, Ling Chen, Peter Christie

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)
295 Downloads (Pure)

Abstract

An extensive soil survey was carried out in Shanghai to investigate the spatial distribution and possible sources of polycyclic aromatic hydrocarbons (PAHs) in urban soils. Soil samples were collected from highways, iron-smelting plants, steel-smelting plants, shipbuilding yards, coking plants, power plants, chemical plants, urban parks, university campuses and residential areas and were analyzed for 16 PAHs by gas chromatography with mass detection. High PAH concentrations were found in all locations investigated, with mean values of soil total PAH concentrations in the range 3,279–38,868 μg/kg DM, and the PAH concentrations were significantly influenced by soil organic matter content. Soil PAH profiles in all districts were dominated by PAHs with 4–6 rings. Principal components analysis and diagnostic ratios of PAHs indicate that they were mainly derived from coal combustion and petroleum but in soils from highways the PAHs were derived largely from vehicle exhaust emissions. The high concentrations of PAHs found indicate that many urban soils in Shanghai represent a potential hazard to public health.

Original languageEnglish
Pages (from-to)33-42
JournalEnvironmental Earth Sciences
Volume62
Issue number1
Early online date02 Mar 2010
DOIs
Publication statusPublished - Jan 2011
Externally publishedYes

ASJC Scopus subject areas

  • Earth-Surface Processes
  • Geology
  • Global and Planetary Change
  • Pollution
  • Water Science and Technology
  • Environmental Chemistry
  • Soil Science

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