根据 1 995～ 1 999年同安湾海域的水质监测资料 ,对海域的水质状况进行了评价和营养分级。结果表明 ,海域水质处于高N低P状态。pH、DO、CODMn、和BOD5 符合GB 30 97 1 997第二类海水水质标准 ,但DIN、石油类和DRP超第二类海水水质标准。DIN和石油类的超标率和超标倍数有逐年增强之势。该海域目前处于P中等限制潜在性富营养水平阶段。Based on the survey data in Tongan Bay of Xiamen from 1995 to 1999, the assessments and classification for water quality and the nutrient levels were respectively done. The results shown: (1) The survey area has the typical characteristics of rich nitrogen and low phosphorus. (2) The contents of pH, DO, COD Mn and BOD 5 are coincide with the sea water quality standard of GB 3097 1997, and the contents of DIN, DRP and Oil are beyond the standard. (3) Tongan Bay was at the stage of middle phosphorus limited potential eutrophication
