on the basis of the methods of health-based risk assessment of contaminated sites and the investigation of organic pollution in the A factory in Changzhou,East China, we assess the integrated human health risk of soil, air and groundwater contamination. It is concluded that the pollutants are four monocyclic aromatic hydrocarbons, which may bring pathological changes in liver and kidney, degenerate the nasal epithelium and impair the motorial coordination capacity. There are three exposure pathways for work...