摘要
为了解玉溪市某工业园区大气PM2.5中重金属污染特征,于2017年3月至2018年3月在玉溪市某工业园区采集PM2.5样品共70个。利用微波消解,ICP-MS方法检测Cr、As、Cd、Pb四种重金属的质量浓度并分析其污染特征。结果表明,玉溪市某工业园区大气PM2.5日均质量浓度在10μg·m-3~75μg·m-3,而PM2.5中四种重金属的浓度范围在0.003~0.377μg·m-3,并且浓度由高到低依次为Pb>As>Cr>Cd,其中As超过国家质量指标限值。因此,应对玉溪市废气排放采取一定控制措施。
In order to understand the pollution characteristics of heavy metals in PM2.5 of an industrial park in Yuxi city. The 70 samples of PM2.5 werecollected from March 2017 to March 2018. Then Cr,As,Cd,Pb were determined by ICP-MS. The results showed that the daily content of PM2.5 were between 10μg·m-3~75μg·m-3. The concentrations of heavy metals in PM2.5 were between 0.003~0.377μg·m-3,and the concentrations from high to low were Pb >As >Cr>Cd. The concentrations of As were exceeded the limit of Ambient air quality standards of China. Therefore,exhaust gas in Yuxi city should be controlled.
作者
王淑凡
鲁广秋
李泽渊
张殿叶
鞠正雄
Wang Shufan;Lu Guangqiu;Li Zeyuan;Zhang Dianye;Ju Zhengxiong(College of Resource Environment ,Yuxi Normal University,Yuxi Yunnan,653100)
出处
《云南化工》
CAS
2019年第5期58-60,共3页
Yunnan Chemical Technology
