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“海洋不是垃圾桶”。专家指出,海洋虽有很强的自净能力,但它的纳污能力也是有限的。在渤海这样的半封闭式海湾,和外海完成一次海水交换需要上百年,海水的严重污染将贻患无穷。 据统计,排入我国海域的污水和各种有毒有害物质,80％以上来自陆地。1995年,仅沿岸工厂和城市直接排海的污水就达86亿吨,主要有毒有害物质约146万多吨。 中国近海污染还在继续发展 在大连,国家海洋监测中心的专家向记者介绍说:我国近岸海区环境质量逐年退化,污染范围有所扩大,外海水质基本良好,重金属污染得到较好控制,油污染重点向南部海区转移,营养盐和有机污染呈上升趋势,突发性污损事件频率加大,海洋生态破坏加剧。
“The ocean is not a trash can.” Experts point out that although the ocean has a strong self-purification capability, its capacity to contain pollutants is also limited. In a semi-enclosed bay such as the Bohai Sea, it takes hundreds of years to complete a seawater exchange with the open sea, and the serious pollution of seawater will be extremely troublesome. According to statistics, more than 80% of sewage and various toxic and harmful substances discharged into the waters of our country come from the land. In 1995, only 8.6 billion tons of sewage were directly discharged into the sea by coastal factories and cities and about 1.46 million tons of major poisonous and harmful substances were produced. China’s coastal pollution continues to develop In Dalian, the State Oceanographic Monitoring Center experts told reporters: China’s coastal environment degradation year by year, the scope of pollution has been expanded, the sea water is basically good, heavy metal pollution is better controlled, oil pollution The transfer of nutrients and organic pollutants to the southern sea areas will increase with the increasing frequency of sudden defacement events and aggravating marine ecological damage.