摘要
选取长沙县某商业区、居住区、对照区三个区域,研究该区域内的PM_(2.5)、PM_(10)浓度及其金属元素贡献率,结果表明,空气中PM_(2.5)、PM_(10)浓度总体呈现商业区>居住区>对照区的趋势,PM_(2.5)中贡献率最大的5类金属元素为Na、Ca、K、Al和Mg,重金属中贡献率最大的为Cu和Mn;PM_(10)中为Na、Ca、Fe、Al和Mg,重金属中贡献率最大的为Cu和Zn。PM_(2.5)、PM_(10)中含量最低的重金属元素都为As。
This paper makes a statistical analysis of the PM2.5 and PM10 concentrations and the contribution rate of metal elements in the three areas of the current commercial area,residential area and control area.The results that the overall concentration of PM2.5 and PM10 in the air is commercial area>residential area>control area.The trend is that the five types of metal elements with the largest contribution rate in PM2.5 are Na,Ca,K,Al,and Mg,and the largest contribution rate among heavy metals is Cu and Mn.The highest metal elements in PM10 are Na,Ca,Fe,Al,Mg,the largest contribution rate among heavy metals is Cu and Zn.The lowest heavy metal element in PM2.5 and PM10 is As.
作者
黄金秀
HUANG Jin-xiu(Centre Testing International(HUNAN)Co.,Ltd.,Changsha 410000,China)
出处
《湖南有色金属》
CAS
2021年第1期67-69,76,共4页
Hunan Nonferrous Metals
