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.
出处
《海洋环境科学》
CAS
CSCD
北大核心
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)
