南京北郊春季含Pb气溶胶粒子来源分析

被引：6

作者：

秦鑫 ^{[1
,2
]}

张泽锋 ^{[1
]}

李艳伟 ^{[1
]}

沈艳 ^{[1
]}

赵姝慧 ^{[2
]}

机构：

[1] 南京信息工程大学,中国气象局气溶胶-云-降水重点开放实验室

[2] 辽宁省人工影响天气办公室

来源：

环境科学学报 | 2015年 / 35卷 / 03期

关键词：

Pb; 源解析; SPMAS; 南京;

D O I：

10.13671/j.hjkxxb.2014.0862

中图分类号：

X513 [粒状污染物];

学科分类号：

0706 ; 070602 ;

摘要：

含有重金属的气溶胶粒子对人类健康有着重要的影响,其中,重金属Pb对人体神经系统有很大的危害,因此,含Pb气溶胶粒子的化学特征和来源问题一直受到人们的广泛关注.本研究于2012年3—4月使用在线单颗粒气溶胶质谱仪(SPAMS)在南京北郊对含Pb气溶胶粒子进行连续观测,并结合自适应共振理论神经网络算法(ART-2a)对其化学特征进行了分析.结果表明,南京北郊春季含Pb气溶胶粒子按照化学组成可分为6类:富钾-铅类(K-rich)、扬尘-铅类(DUST)、钾-元素碳-铅类(K-EC)、铜-元素碳-铅类(Cu-EC)、锌-铅类(Zn)和锰-铅类(Mn),它们主要来自钢铁冶炼、城市扬尘、燃油排放和化工排放,贡献率分别为70.66%、24.53%、2.47%和2.34%.

引用

页码：641 / 646

页数：6

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