凉果蜜饯的卫生问题,主要是微生物指标及食品添加剂含量超标,而有害重金属超标很少见。然而在１９９５年监测中,我们却意外地发现广西某凉果厂的蜜饯食品铅含量异常增高,大大地超过国家卫生标准（≤１．０ｍｇ／ｋｇ）的规定。为了查明其污染来源,我们对该厂进行了进一步的现场 Preserved candied fruit health problems, mainly microbial indicators and food additives exceeded the standard, and excessive heavy metals are rare. However, during the monitoring in 1995, we unexpectedly found that the lead content of preservative food in a Liangguo fruit factory in Guangxi Province increased abnormally greatly exceeding the requirements of the national health standard (≤1.0mg / kg). In order to find out its sources of pollution, we conducted a further site on the plant