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Gas Chromatographic/Mass Spectrometric Determination of Benzene and Its Alkyl Derivatives in Indoor and Outdoor Air in Fuji, Japan

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An analytical method was established for the determination of benzene and 13 of its alkyl derivatives. The method was applied to a survey of indoor pollution that investigated the usefulness of the method, concentration levels, seasonal variations, profiles, correlations between compounds, and factors that affected indoor pollution by these compounds. The survey was performed in 21 houses in the summer of 1999 and 20 houses in the winter of 1999–2000 in Fuji, Japan. All the target compounds were detected in the indoor and outdoor air of all houses. Outdoor concentrations of benzene ranged from 0.779 to 3.17 μg/m3 in summer and from 1.35 to 6.04 μg/m3 in winter, whereas indoor concentrations of benzene ranged from 0.694 to 3.11 μg/m3 in summer and from 1.65 to 6.89 μg/m3 in winter. Indoor concentrations of the target compounds, except for benzene, were elevated, compared with outdoor concentrations. Because indoor and outdoor concentrations of benzene and its derivatives in summer were lower than in winter, the emission of these compounds may be increased by use of a heater and other variables present in winter. Profiles of the compounds, correlations between the compounds, and factors that affected indoor pollution (determined by multiple regression analysis) were investigated. These results suggested that indoor benzene predominantly penetrated from outdoors and that other benzene derivatives were emitted from indoor sources, such as paint solvents and kerosene heaters.
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Document Type: Research Article

Affiliations: 1: University of Shizuoka, 52-1, Yada, Shizuoka 422-8526, Japan. 2: Shizuoka Institute of Environment and Hygiene, 4-27-2, Kita-ando, Shizuoka 420-8637, Japan. 3: Fuji Tokoha University, 325 Ohbuchi, Fuji, Shizuoka 417-0801, Japan.

Publication date: 01 January 2002

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  • The Journal of AOAC INTERNATIONAL publishes refereed papers and reviews in the fields of chemical, biological and toxicological analytical chemistry for the purpose of showcasing the most precise, accurate and sensitive methods for analysis of foods, food additives, supplements and contaminants, cosmetics, drugs, toxins, hazardous substances, pesticides, feeds, fertilizers and the environment available at that point in time. The scope of the Journal includes unpublished original research describing new analytical methods, techniques and applications; improved approaches to sampling, both in the field and the laboratory; better methods of preparing samples for analysis; collaborative studies substantiating the performance of a given method; statistical techniques for evaluating data. The Journal will also publish other articles of general interest to its audience, e.g., technical communications; cautionary notes; comments on techniques, apparatus, and reagents.
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