珠江口海域底层大气中TSP与Cu、Pb、Cd质量现状与趋势

Quality status and trend of TSP and Cu,Pb,and Cd in atmosphere near surface of Zhujiang River estuary

于2002—2005年在珠江口海域大万山岛海洋环境监测站设立一个大气监测站,采集了120多个大气气溶胶样品,测定TSP(总悬浮颗粒物)的含量与元素Cu、Pb、Cd的浓度。结果表明,Cu的浓度有增加并趋于稳定的趋势,Pb与Cd变化缓慢,浓度趋于稳定。

An air monitoring site was established at the Dawansan ocean environmental monitoring station in Zhujiang River estuary from 2002 to 2005. Total 120 samples of aerosol TSP （total suspended particles） were collected. The concentrations of three heavy metals including Cu, Pb, and Cd were determined. The results showed that the concentration of Cu increased and tended to be stable, and the concentrations of Pb and Cd increased slowly and showed a stable trend.