Citation:

Chuang, J., S. Cao, Y. Xian, D. Harris, AND J. Mumford. CHEMICAL CHARACTERIZATION OF INDOOR AIR HOMES FROM COMMUNES IN XUAN WEI, CHINA, WITH HIGH LUNG CANCER MORTALITY RATE. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-94/217 (NTIS PB94173680), 1992.

Description:

In a rural county, Xuan Wei, China, the lung cancer mortality rate is among China's highest, especially in women. his mortality rate is more associated with indoor air burning of smoky coal, as opposed to smokeless coal or wood, for cooking and heating under unvented conditions. omes using different fuels from communes with high and low lung cancer mortality rates were sampled for particulate matter (<10 um) and semivolatile organics. he fine particles obtained from homes using smoky coal contained highest concentrations of organic matter (>70 percent), including PAH, followed by homes using wood and smokeless coal. he major components present in the smoky coal filter samples were PAH and alkylated PAH. he smokeless coal filter samples exhibited profiles which were similar to the smoky coal samples except that some sulfur compounds - were found. he estimated concentration levels of PAH in the smokeless coal samples were about one to two orders of magnitude lower than those of the smoky coal samples. n addition to PAH, aliphatic compounds, and fatty acids were the major components found in the wood samples. elected sample extracts from homes using smoky coal were fractionated into four fractions, and the results showed that the PAH and polar fractions have high mutagenic activity. hemical characterization of the PAH fraction indicated that concentrations of some alkylated PAH were higher than those of their parent compounds. hemical characterization of the polar fractions is still in progress.

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