Preliminary Study on Heavy Metal Pollution Status of Farmland Soil at Two Sides of Cheng-Guan Expressway

• 作者: Dongli DUAN Hua ZHEN Shuangyan WANG Zhouping YANG Zumin ZHANG
• 来源期刊: 亚洲农业研究：英文版
• 学科: 地球科学
• 关键词: Cheng-Guan EXPRESSWAY FARMLAND soil HEAVY metal po
• 年，卷（期）: yznyyjywb_2013,（8）
• 页码范围: 55-61
• 页数: 7页
• 分类号: X53

摘要

The heavy metal content of the farmland soil at two sides of Cheng-Guan Expressway is measured to make a preliminary evaluation on its heavy metal pollution status.After digestion and volume fixation of the soil samples collected,measure the Cu,Zn,Cd,Pb and Cr content with atomic absorption spectrophotometry and evaluate the measured data according to Level Two of National Soil Environmental Quality Standard to obtain the contamination status.Cu,Zn and Cd content of the farmland soil for sections of Cheng-Guan Expressway goes beyond Level Two of National Soil Environmental Quality Standard,while the Pb and Cr content meets Level Two of National Soil Environmental Quality Standard.Pb and Cr content of the farmland soil at two sides of Cheng-Guan Expressway is in safe state,while the Cu,Zn and Cd content is in a mild contamination state.Cu,Zn and Cd are the main pollution elements.