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《Environmental Science & Technology》 2010-09
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Investigation and Evaluation of Heavy Metals in Tea of FengHuang Moutain Tea Gardens in East Guangdong Province

LI Zhang-wei (Department of Chemistry,Hanshan Normal University,Chaozhou 521041,China)  
The contents of metal elements in tea is a very important index for evaluating the quality of tea. Heavy metal elements as Cu,Cr,Pb,Mn. Ni and Zn in 83 tea samples of the 11 tea gardens in east Guangdong Province were measured by atomic absorption spectrometry.In the same time,the single-factor pollution index and combined pollution index were used for evaluating the influence degree in tea. Result indicated that the contents of heavy metal elements in tea was Mn ZnCuCrNiPb,the single-factor pollution index was CrZnPbCu.All the tea gardens combined pollution index were less than 1,as the same to the enrich index of the heavy metals in tea,which enrich index degree was CuMnZnCrNi Pb.In conclusion,qualities of tea were quite good on the whole,but few kinds of heavy metals was exceed the standard level,which should be pay modre attention.
【Fund】: 广东省教育厅2008年度高校学科建设专项基金项目资助;; 韩山师范学院青年科研基金项目(413814)
【CateGory Index】: X53
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