摘要
于2014年春季在长春采集大气PM_(2.5)样品,对PM_(2.5)及其水溶性离子特征进行了分析。结果表明,2014年长春春季PM_(2.5)质量浓度为34.9~237.5μg/m3,平均质量浓度为125.6μg/m3。9种水溶性离子的总质量浓度为24.3~71.2μg/m^3,平均质量浓度为39.8μg/m^3,平均浓度大小表现为SO_4^(2-)>Ca^(2+)>Cl^->NH_4^+>NO_3^->Na^+>K^+>Mg^(2+)>F^-。后向轨迹表明,长春春季PM_(2.5)污染主要来源于内蒙古西北方向和长春东南部渤海、黄海地区。
PM（2.5）samples were collected during spring of 2014 in Changchun.The characteristics of PM（2.5）and its water-soluble ions were analyzed.Results showed that PM（2.5） mass concentrations were 34.9-237.5μg/m^3 with average of 125.6μg/m^3.The mass concentrations of 9water-soluble ions were 24.3-71.2μg/m^3 with average of 39.8μg/m3.The average concentrations of 9water-soluble ions showed SO4^（2- ）Ca^（2＋）Cl^-NH4^＋ NO3^- Na^＋K^＋Mg^（2＋）F^-.The backward trajectory showed that the PM（2.5） mainly came from northwest of Inner Mongolia and southeast of Changchun.
作者
吴雨华
王媛
朱娜
秦阳
WU Yuhua WANG Yuan ZHU Na QIN Yang.(Environmental Monitoring Center of Jilin Province ,Changchun Jilin 130011)
出处
《环境污染与防治》
CAS
CSCD
北大核心
2017年第4期398-400,407,共4页
Environmental Pollution & Control
基金
吉林省科学技术厅基本科研专项(No.10605020130032)
