Analysis Of The Monitoring Of Lead And Cadmium In Food Contaminants In Ningde From2009to2013

The monitoring of toxic heavy metals in food contaminants in Ningde of Fujianprovince was started for purposes as the following. To collect the related data, todetermine the pollution level and trend of lead and cadmium in food contaminants inNingde and to better grasp and analyze the food safety situation there. To determinethe possible source of toxic heavy metals, to spot in time hidden troubles in foodsafety during production and consumption and to offer scientific supports for targetedcontrol measures taken by regulators. To offer sufficient reliable data supports forevaluation of food safety, risk pre-warning and amendments on food safety standards.To evaluate the effectiveness of contamination control and food safety standardsperformance of food production and processing enterprises, and to offer technicalsupports in contamination control and for food production and processing enterprisesand regulators.Samples (including fish, crustaceans, mollusks, vegetable, grains, meat andedible fungi) such as fresh and salt water fish, rice, dairy products were taken from9places (including4supermarkets and5main markets). Monitoring method firmlystuck to the requirements of GB/T5009.12-2003and GB/T5009.15-2003withadditional monitoring of heavy metals in local food. Results were detailedly studied,contrastively analyzed and recorded.Within the113samples of11groups of food in2009, neither lead nor cadmiumin food exceeded the limits with an average figure of0.159mg/kg and0.048mg/kgrespectively. Within the106samples of17groups of food in2010, lead in foodexceeded the limits by5.7%with an average figure of0.286mg/kg and so didcadmium by2.8%with an average figure of0.101mg/kg. Within the155samples of10groups of food in2011, lead in food exceeded the limits by12.3%with an averagefigure of0.461mg/kg and so did cadmium by6.5%with an average figure of0.055mg/kg. The detection rate of lead and cadmium is87.1%and47.7%respectively.Within the85samples of8groups of food in2012, neither lead nor cadmium in food exceeded the limits with an average figure of0.031mg/kg and0.035mg/kgrespectively. Within the33samples of2groups of food in2013, neither lead norcadmium in food exceeded the limits with an average figure of0.075mg/kg and0.035mg/kg respectively.The pollution level of lead and cadmium in food is relatively low at present.However, the contents of heavy metals are likely to rise considering the potentiallyheavier pollution of water. It was revealed that partial groups of food in Ningde weremildly polluted by lead and cadmium, which was supported by the result that heavymetals in mollusks, seaweeds, pig’s livers, grains and edible fungi were more thanwhat limits set.