南海东北部考洲洋海洋渔业环境质量评价

根据1999年考洲洋12个调查站的观测资料,按我国有关的环境质量标准,用质量指数法分级评价考洲洋的环境质量。结果表明：考洲洋的环境质量总体较好,但轻微污染偶有发生,石油类是主要污染物,其次为PO4-P。2月(枯水期)在5测站的表层沉积物中有机质含量略有超标,3测站海水和2测站表层沉积物受石油类轻污染,1测站的海水受Cu轻污染。8月(丰水期),5测站的海水受PO4-P轻污染。

Assessment on the marine environmental quality of Kaozhou Bay

In this paper, based on the data obtained at 12 stations in 1999 and the relative standards of China, the marine environmental quality of Kaozhou Bay was assessed using the quality index method. The results showed that the environmental quality of Kaozhou Bay was generally (good), but light pollution were sporadically occurred,the first pollutant was oil,the second was phosphate. In February 1999, the surficial (sediment) at 5 stations contained organic matter little more than the limit of the standard, the sea water at 3 stations and the surficial sediment at 2 stations was lightly contaminated by oil, and copper at 1 station lightly polluted the sea water. The sea water at 5 stations was lightly polluted by inorganic phosphate in August 1999.