Investigation and Analysis of Heavy Metal Pollution in Food in Fuyang City from 2022 to 2023
Objective:To investigate and analyze the pollution of Pb,Cd,total Hg,total As and Cr in 6 kinds of food risk monitoring in Fuyang city from 2022 to 2023,so as to provide data support for food safety risk monitoring.Method:Random sampling was used to collect wheat flour,corn flour,rice,tea,soybeans and vegetables from farmers'markets in three districts and five counties of Fuyang city.The samples were detected by inductively coupled plasma mass spectrometry.The detection of the same heavy metal elements in different samples and the detection of different heavy metal elements in the same samples were analyzed.Result:Among 80 samples,2 rice samples were found to exceed the standard by Pb,and the rate of exceeding the standard was 2.5%.The detection rate of 5 heavy metals was Cr(83.8%)＞Total As(78.8%)＞Cd(61.3%)＞Pb(45%)＞total Hg(0%).The highest detectable values of Cr and Pb in tea samples were 0.645 mg·kg-1 and 0.559 mg·kg-1,respectively,while the highest detectable values of Pb,Cd and total As in rice samples were 0.816 mg·kg-1,0.166 0 mg·kg-1 and 0.251 0 mg·kg-1,respectively,and there was a certain risk of contamination.No total Hg was detected,and there was statistical difference in the detection of 5 heavy metals,χ2=146.323,P＜0.001;there were statistically significant differences in the exceedance,χ2 =4.401,P=0.198.Conclusion:Two samples of rice Pb exceeded the standard in 80 samples monitored from 2022-2023,which were from farmers'market samples.Therefore,the supervision of food safety in farmers'market should be strengthened.The detection rates and maximum values of Pb,Cd and total As in rice,wheat flour and corn flour samples are high,and although they are lower than the standard limits,there are certain pollution risks.The detection rates of Pb,Cd,total As and Cr in tea are 100%,which is significantly higher than that of soybean and vegetable samples,and there are no exceedance samples,so the overall pollution condition is good.The quality of food hygiene is relatively safe,but there is a risk of pollution,especially the continuous monitoring of heavy metals in cereals and tea should be strengthened.
foodheavy metalspollutioninductively coupled plasma mass spectrometry
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