Contamination of soil , leaves and vegetables by polychlorinated biphenyls in Xiamen region , China

The paper aimed to identify the primary of polychlorinated biphenyls( PCBs) in the Jiulong River Estuary , inve stigate the spatial distribution of PCBs contamination in the environment,localize the atmospheric source and evaluate ongoing PCBs emissions by analyzing soil sample s collected along the Jiulong River region. In addition , the accumulation of PCBs in the human food chain wa s quantified by analyzing leaf of orange tree s and vegetable samples collected along a gradient of soil/ atmospheric contamination moving away from the source. Consequently , the impact on the human health and the eco system wa s quantified, different management options were proposed to reduce this impact and to carry out re search on organic contaminants along the Jiulong River and Xiamen region.The National Natural Science Foundation of China (No. 40206015) ; the Fork Ying Tong Education Foundation(No. 94002) and the State Key Laborator