Relationship between Sorption Amount into Soil and Carbon Numbers of Straight Chain Alkanes and Alkenes in the Atmosphere

Abstract

The sorption amount into soil of atmospheric alkanes and alkenes of carbon number 3 to 10 was measured to elucidate the relation of sorption amount to carbon number of hydrocarbons. The Henry's law was possible to be used for showing sorption amount of these hydrocarbons. Henry's law constant became larger with the increase of carbon number, and the relation of Kh to N was shown by equation log Kh=0.53 N-3.33 (r=0.99) for alkanes and log Kh=0.62 N-3.75 (r=0.99) for alkenes. Kh is the Henry's law constant and N is the carbon number.