【摘要】 通过对大化棉花岛排渣场投入使用前后在相关海域内与碱渣相关的 ３ 项污染因子及其综合污染指数的比较，得出由于该排渣场的投入使用，对降低大连湾相关海域的悬浮物、石油类和化学耗氧量的污染起到积极作用的结论更多还原

【Abstract】 This paper analyses the three pollution factors and comprehensive pollution index,which is related to the base residue in the relevant area in Dalian Bay,before and after the cotton Island base residue yard was put into use. A conclusion is drawn that after the yard was put into use,the water quality in this area is improved.更多还原