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J.Health Sci., 46(5), 380-384, 2000
Dynamics Analysis for Emission Sources of Polycyclic Aromatic Hydrocarbons in Tokushima Soils
Takashi Korenaga,*, a, b Xiaoxing Liu,b and Yoko Tsukiyamaa
aFaculty of Integrated Arts and Sciences, University of Tokushima, 1-1 Minami-josanjima-cho, Tokushima 770-8502, Japan and
bGraduate School of Engineering, University of Tokushima, 2-1 Minami-josanjima-cho, Tokushima 770-8506, Japan
Soil samples from 30 sites in Tokushima, Japan, were analyzed to obtain contemporary normal (or typical) levels of polycyclic aromatic hydrocarbons (PAHs) in local soils. A very wide range of PAH concentration has been observed in these soils.
The Sigma PAH values ranged over 2 orders of magnitude, from 1 to 147 mu g/kg.
Fluoranthene was consistently found to be the most abundant compound. Other major constituents were pyrene, benzo[b]fluoranthene, and benzo[a]anthracene.
Biomass burning and vehicular exhaust contribute PAH to soils. Higher PAH contents in rural soils principally came from biomass burning. Mobile sources (diesel- and gasoline-powered vehicles) raise PAH contents in urban soils. In addition, soil properties play some role in controlling/influencing the PAHs contents of soils.
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