We determined the spatial distribution pattern, source, risk level and influencing factor of heavy metal pollution in a typical high-tech industrial development zone of Changsha, China. A total of 123 topsoil samples were excavated from 11 different land-uses. Quite strong pollution (Nemerow) occurred in the whole zone. The Igeo pollution levels were from slight to strong for these elements. Four primary components were extracted from PCA with 79.36% of total variance explained. It could be deduced from the primary components that Cu, Co, Ni no...
