The liver

brain

kidney

lung and stomach tissues of about fifty abortive fetuses from Baotou

Beijing

GuangZhou

Kunming and Shanghai at the period of 1985-1986 were analyzed on 12 elements by PIXE method.From the data

a significant difference on some elemental contents between different regions was found.The contents of Ca in five organs for Guangzhou fetuses were significantly lower than those for other regions fetuses（P<0.01）

while the contents of Rb in five organs for Kunming fetuses showed a higher level than those for other regions’fetuses（P<0.01）.A comparison of the Pb data between fetal elemental spectra and aerosol analysis for different regions revealed a positive interrelation

which may suggest that the data of fetal elemental spectra can indicate the environmental change.In comparison between the fetal elemental spectra data and the regulating cancer-death-rate data

a positive relationship for Pb contents and a negative relationship for Rb contents can be found

which may support the theory that Pb seems cancerogenic and Rb anticancerous.