摘要
为探究泰山景区PM_(2.5)的化学组分特征,于2015年2月(冬季)和4月(春季)在位于泰山景区中的南天门和位于泰山景区与泰安城区交界处的某学校2个点位采集PM_(2.5)样品,并分析其化学组分。结果表明,泰山景区冬季和春季的PM_(2.5)质量浓度分别为(65.14±42.21)、(54.32±25.96)μg/m^3,冬季高于春季,某学校高于南天门。SO_4^(2-)是泰山景区PM_(2.5)中浓度最高的水溶性离子,冬、春季的水溶性离子污染来源比较稳定。泰山景区存在一次有机碳向二次有机碳转化的反应。冬季,Ti、Na、K、Mg的富集因子(EF)介于1~10之间,为人为来源和自然来源的混合来源;Ca、Cr、Mn、Fe、Ni、Cu、Zn、Pb的EF>10,主要来自于人为来源。春季,Na、K、Mg、Cr、Mn、Fe、Ni的EF介于1~10之间,为人为来源和自然来源的混合来源;Ca、V、Cu、Zn、Pb主要来自于人为来源(EF>10);Ti主要来自于自然来源。
In order to investigate the chemical composition characteristics of PM2.5in Taishan Scenic Area,PM2.5samples were collected and chemical composition characteristics were analyzed in Taishan Scenic Area during winter（February）and spring（April）,2015.The sampling sites were located at a school at the edge of Taishan Scenic Area and Taian downtown,and at Nantian Gate in the Taishan Scenic Area.Results indicated that the mass concentrations of PM2.5 were（65.14±42.21）and（54.32±25.96）μg/m^3 in winter and spring,respectively.It showed that the concentrations of PM2.5 was higher in winter than in spring,and at a school than at Nantian Gate.SO4^2- was the major water soluble ion in PM2.5.The source of soluble ions had little difference between two seasons.Secondary organic carbon might transformed from primary organic carbon.In winter,the enrichment factors（EF）of Ti,Na,K and Mg（1-10）revealed mixed sources of both natural and anthropogenic sources;and that of Ca,Cr,Mn,Fe,Ni,Cu,Zn and Pb（〉10） anthropogenic source.In spring,the EF of Na,K,Mg,Cr,Mn,Fe and Ni（1-10）revealed mixed sources of both natural and anthropogenic sources;that of Ca,V,Cu,Zn and Pb（〉10） anthropogenic source,and that of Ti natural source.
出处
《环境污染与防治》
CAS
CSCD
北大核心
2018年第1期84-87,111,共5页
Environmental Pollution & Control
关键词
泰山景区
PM2.5
化学组分特征
水溶性离子
二次有机碳
Taishan Scenic Area
PM2.5
chemical composition characteristics
water soluble ions
secondaryorganic carbon
