Effect of soil properties on bioavailability and extractability of phenanthrene and atrazine sequestered in soil

Namhyun Chung, Martin Alexander

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Sixteen soils with markedly different properties were analyzed to determine their porosity in the range of 7 nm-10 μm, cation-exchange capacity (CEC), surface area and clay mineralogy. The extent of sequestration of phenanthrene and atrazine has been shown to differ markedly among these soils. Correlations were sought between soil characteristics and four methods of measuring sequestration. Simple correlation analysis showed that some but not all measures of phenanthrene and atrazine sequestration were highly correlated with organic C content, nanoporosity or CEC but not other properties of the soils. Multiple linear-regression analysis suggested an interaction of organic C content with soil texture, CEC or surface area in determining the extent of atrazine or phenanthrene sequestration. We conclude that organic C content, CEC and other properties of soil may be useful predictors of sequestration of some compounds.

Original languageEnglish
Pages (from-to)109-115
Number of pages7
Issue number1
Publication statusPublished - 2002 Jun 18
Externally publishedYes


ASJC Scopus subject areas

  • Environmental Chemistry
  • Environmental Science(all)

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