10A-B-1 江戸時代小倉藩城下に居住した人々に見られる高度鉛汚染状況の階層差及び性差(B会場一般講演)

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We analyzed lead concentrations in bones from both genders of Japanese merchants (including rohnin ; masterless samurai) and farmer classes, and compared the findings with those of the samurai class in the Edo period (1603-1867) to clarify gender and hierarchical (or occupational) differences in lead exposure during the Japanese feudal age. Merchant class females had significantly higher lead exposure (90.8μg Pb/g dry bone ; n=20) than males of the same class (39.9μgPb/g dry bone ; n=31) (p<0.01), indicating a remarkable gender difference in the urban population. In contrast to these high concentrations, males and females of the farmer class living in agricultural (or semi-rural) areas had significantly lower exposure (total mean value ; 9.2 μg Pb/g dry bone ; n=4) than both gender of the merchant class (p<0.001), and the gender difference was not seen in this class.
2010-10-09