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J.Health Sci., 48(3), 256-262, 2002
Polynuclear Aromatic Hydrocarbon Concentration and Mutagenicity of Airborne Particles in Urban Air: Comparison of Tokyo Area and Santiago
Michiko Koyano,*, a Osamu Endo,a Motoe Katoh,b Ruby Valdivia,b M. Ilabaca Marileo,c Keijiro Morita,d Sumio Goto,e and Hidetsuru Matsushitaf
aDepartment of Community Environmental Sciences, National Institute of Public Health, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8638, Japan, bFacultad de Odontologia Universidad de Chile, Santos Dumont 964 Casilla 1903, Santiago, Chile, cServicio de Salud Metropolitano del Ambiente, Avenida Bulnes 177, Santiago, Chile, dEnvironmental Division, Okayama Health Foundation, 408-1 Hirata, Okayama 700-0952, Japan, eEnvironmental Chemistry Division, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-0053, Japan, and fShizuoka Institute of Environment and Hygiene, 4-27-2 Kitaando, Shizuoka 420-8637, Japan
Five mutagenic and/or carcinogenic polynuclear aromatic hydrocarbons (PAHs), and Salmonella mutagenicity in airborne particles collected at three stations (industrial, commercial/residential, and agricultural areas) in Santiago, Chile were measured, and compared with the same measurements in the Tokyo metropolitan area. PAH concentrations showed daily variations in both cities. The concentrations of four-ring PAHs were higher in the Tokyo area than in Santiago, and the concentrations of five-or-more-ring PAHs were higher in Santiago than in the Tokyo area. Mutagenic activities also showed daily variations in both places, and were generally higher in Santiago. In the Tokyo area, the mutagenic activities were higher under conditions of TA98-S9 mix than under TA98+S9 mix while in Santiago, the activities were similar under the two mixes. There were good correlations between PAH concentrations and mutagenic activities in both areas. In Santiago, mutagenic activities and PAH concentrations were higher in the commercial/residential area and the industrial area than in the agricultural area.
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