The Influence of Water Content on the Sorption of Atmospheric Aromatic Hydrocarbons Into Soil

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  • 大気中芳香族炭化水素の土壌収着に及ぼす水分の影響
  • タイキチュウ ホウコウゾク タンカ スイソ ノ ドジョウ シュウチャク ニ オ

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Abstract

Aromatic hydrocarbons from the atmosphere were studied to elucidate their sorption into soil. The sorption amount of these hydrocarbons including benzene, toluene and o-xylene could be calculated using Henry's Law equation. Henry's Law constant was highest in o-xylene, less in toluene, and lowest in benzene, it also decreased with increasing water content of soil. The aromatic hydrocarbons were concentrated into dry soil by sorption, and emission of these hydrocarbons from the soil by addition of water was observed. Sorption and emission of the aromatic hydrocarbons would often occur between actual soil and atmosphere in the range of water content of 2-10%, because change of Henry's Law constant was large in this range of water content.

Journal

  • NIPPON KAGAKU KAISHI

    NIPPON KAGAKU KAISHI 1991 (11), 1549-1552, 1991-11-10

    The Chemical Society of Japan

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