Safety Assessment of Heavy Metal in Tea Garden Soil: A Case Study of Specialized Tea Towns in Guangdong

• 作者: Caijin LING Chaoyi ZHAO Jinsong ZHANG Junxi CAO Qiushuang WANG Shumei LIU
• 来源期刊: 亚洲农业研究：英文版
• 学科: 地球科学
• 关键词: GUANGDONG Specialized TEA TOWNS HEAVY METAL Safety
• 年，卷（期）: 2013,（8）
• 页码范围: 86-88
• 页数: 3页
• 分类号: X53

摘要

More than 20 soil samples were collected from tea gardens of specialized tea towns in Guangdong,including Fenglang Town and Fengshun Town in Meizhou City,Changshan Town in Lianjiang City,Fenghuang Town in Chaozhou City.Content of 6 types of heavy metal (Cr,Cu,Pb,As,Cd,Hg) in tea garden soil was measured.On the basis of these,the safety was assessed.Results show that the comprehensive pollution index of these 6 types of heavy metal is lower than 0.7.According to Soil Pollution Grading Standard formulated by China Green Food Development Center,the soil is not polluted by heavy metal and remains at safety level.It proves that overall soil condition of specialized tea gardens in Guangdong Province is not polluted by heavy metal.