Distribution of heavy metal of Hg

As

Cd

Cr

Cu

Zn

Ni and Pb in cultivated soil in TGRA has been studied in the present investigation.Statistical results showed that the cultivated soil in Chongqing area was polluted by heavy metals. Contrast with the standards of soil environment quality and background

Cd has far most excess in the several heavy metals. As a whole

the content of heavy metals in dry farm land was higher than that in paddy soil

such as purple and yellow soil. There was a significantly positive correlation among Cd

Pb

Cu

As

Zn. The soil quality of some submerged counties is appraised by comprehensive pollution index. Only the one county reached middle pollution level and the others subtle polluted or not. The risks of heavy metals submerge and the condition of non-point source pollution in TGRA was analyzed.