白皮松针叶中几种元素的测定及对北京大气污染状况的评价  

Determination of Some Elements in the Needle Leaves of Pinus.Bungeana Zucc. Ex Endl and Evaluation on the Atmosphere Pollution State in Beijing

作　　者：王娟[1] 杨蓉西[1] 周云龙[1] 李永良[2] 

机构地区：[1]北京师范大学生命科学学院,北京100875 [2]北京师范大学分析测试中心,北京100875

出　　处：《环境科学研究》2004年第2期6-9,共4页Research of Environmental Sciences

摘　　要：通过对北京市区的白皮松(Pinus.bungeanaZucc.ExEndl)不同年龄针叶中Cr,Zn,Pb,Mn,Fe,Cu等重金属元素及元素S质量分数的分析,探讨了它们与北京大气污染之间的关系。结果表明,各元素含量存在着地区和年际的差异:这些元素在重工业区和交通枢纽区的含量明显高于清洁对照区;近年来空气中SO2浓度有所下降,但重金属的污染情况仍不容乐观。研究结果基本上反映了北京地区大气环境质量近几年的变化。With the appearance observation and the determination of the contents of Cr,Zn,Pb,Mn,Fe,Cu and S in different ages of needles of Pinus.bungeana Zucc.Ex Endl,the relationship between the elemental contents in needles and the urban air pollution states were studied.According to the results,the elemental contents vary among different regions and years.It is obviously higher in industrial and traffic areas than in the clean control area.In recent years,the contents of SO_2 are decreasing,but the metal pollution state still cannot be optimistic.The results basically showed the change of air quality in Beijing in recent years.

关 键 词：白皮松 针叶 重金属元素 S元素 大气污染 监测 

分 类 号：X511[环境科学与工程—环境工程] X831