CAJ | 학술논문

调查采集了瓯江口春季10个站位的表层沉积物样品，对其Cu、 Pb、 Zn、 Cd四种重金属含量进行了化学分析和评价，研究认为：瓯江北口总体沉积物质量优良，总体达到国家1类标准，符合其海洋功能区划的要求；铜为该区主要重金属污染影响因子；从空间角度看，主要重金属含量有由近岸向外海减小的趋势；从时间角度看，主要重金属含量除铅含量略有增加外，其他重金属含量均由一定幅度的下降，显示该区底质环境有改善的迹象。
조사채집료구강구춘계10개참위적표층침적물양품，대기Cu、 Pb、 Zn、 Cd사충중금속함량진행료화학분석화평개，연구인위：구강북구총체침적물질량우량，총체체도국가1류표준，부합기해양공능구화적요구；동위해구주요중금속오염영향인자；종공간각도간，주요중금속함량유유근안향외해감소적추세；종시간각도간，주요중금속함량제연함량략유증가외，기타중금속함량균유일정폭도적하강，현시해구저질배경유개선적적상。
The research on four kinds of heavy metals of Cu , Pb, Zn and Cd in surface sediments presented north estuary of the Ou Jiang River in spring and 10 samples were conducted.The difference of Cu , Pb, Zn and Cd of surface sediments in time and space was compared , at the same time , considering dynamic conditions , some conclusions were obtained that the area was not evidently polluted by heavy metals except for light contaminated of Cu with the first sediment quality standard , Cu was the dominate contaminated factor in surface sediments , the lower contaminated of surface sediments was showed offshore of north estuary of Ou Jiang River in space.Comparison with the 2011's data, the heavy metals contents was decreased except for Pb which hinted surface sediments quality was improved .