连云港市近岸海域水质变化趋势与现状研究

Inter-annual Variations and Current Situation of Water Quality in Lianyungang Inshore

采用综合污染指数法,对连云港市近岸海域2006—2010年间水质污染状况和2010年水质现状进行了评价。结果表明:2007年连云港市近岸海域水质主要污染物均值污染指数最高,2009年呈缓慢改善趋势;从现状看,磷、氮营养盐仍然是连云港市近岸海域的主要污染物,距离海岸相对较远点位水质优于近岸点位水质,河口区域海水水质最差。

Based on the monitoring results of water quality in Lianyungang inshore from 2006 to 2010, we made evaluation to the inter-annual variation and current situation of seawater quality in 2010 through the synthetic pollution index method. The results showed that the mean pollution index of main pollutants was high in 2007, and it was slowly improved in 2009. Judging from the current situation, phosphorus and nitrogen nutrients were still the main pollutants, the water quality far off the coast was better than that at the inshore point, and the water of the poorest quality was near the river-mouth area.