关键词: 锰矿, 蔬菜污染, 食品安全

Abstract: The pumpkin,kidney bean,cowpea,tomato,cabbage,amaranth,carrots,lettuce and leek growing around manganese mining,area were collected to determine the concentrations of manganese,iron,zinc,copper,lead,cadmium and other heavy metals in them by the method of wet digestion respectively. The determination results were compared with those in the national health standards and national vegetables nutrients. At the same time,the evaluation was made with pollution index. The results showed that the pollution extent of vegetables around the manganese mining processingarea in Zunyi was: manganese>cadmium>zinc>railiron>copper>lead. Among them,the amaranth,lettuce,and cabbage suffer the most serious manganese pollution,and the pollution indexes reach 29.663380,16.162590 and 15.898370,respectively; The cabbage and amaranth suffer the most serious of cadmium pollution,and the pollution index reach 12.252500 and 11.171000,respectively. The vegetable samples do not suffer lead contamination. Few vegetables samples suffer mild copper pollution.

Key words: manganese, vegetables contamination, food security