珠江口地区总悬浮颗粒中金属元素沉降通量  

Deposition fluxes of metals in TSP in Pearl River Estuary

作　　者：刘孟兰[1] 林端[1] 罗一丹[1] 吴施卫[1] 

机构地区：[1]国家海洋局南海环境监测中心,广东广州510300

出　　处：《海洋环境科学》2006年第3期60-62,共3页Marine Environmental Science

基　　金：国家海洋局南海分局海洋科学技术局长基金资助项目(0413)

摘　　要：于2002年5月至2004年10月在珠江口大万山海洋环境监测站地面气象观测场上设立一个监测站,共采样了120多个大气气溶胶样品,用无火焰原子吸收分光光度法测定了元素Cu、Pb、Cd的浓度,讨论了这几种元素入海通量的月变化和年平均值。结果表明,三种元素在珠江口地区沉降通量的变化规律是Pb>Cu>Cd。三元素在5月、8月、10月内的沉降通量占全年的比例均少于20%,而且比例的变化规律是10月>5月>8月。120 aerosol TSP samples were collected at the ground observation site of the Dawanshan Marine Environmental Monitoring Station in Pearl River Estuary from May 2002 to Oct. 2004. The concentrations of Cu,Pb,and Cd were determined by flameless AAS. The monthly temporal variations and the annual average were discussed . The results showed that the deposition flux of Pb, Cu,Cd were decreased and in the order of Pb〉 Cu〉 Cd. The deposition flux of three metals were less than 20% in the whole year. The changes law of the proportion are Oct. 〉 May. 〉 Aug.

关 键 词：气溶胶 总悬浮颗粒 沉降通量 珠江口 

分 类 号：X513[环境科学与工程—环境工程]