Legal analysis of articles of the water pollution: comparative study case of Karun River and its national and international responsibilities

Karun River is the only navigable river in Iran. In addition to these features, it is the only river that has relationship with international waters and oceans of the world. However, in a few past years it has changed to a low-water and polluted river ad it is used as a means to transfer the urban and rural sewage. All these factors have caused that the River Pollution makes troubles not only the drinking water of people of the province, but also the quality of water for agriculture and crop production with high quality and quantity especially in the central and southern parts of the province. the countries have to provide domestically and internationally the rules and conventions regarding pollution of surface waters so that they provide grounds for preventing contamination of rivers including the Karun.In this article, it has been tried to present a legal analysis of the legal articles in the field of protection of surface waters against pollution of water especially protection and restoration of the Karun. National and international responsibility of Iran against pollution of Karun River is reviewed. At last, some suggestions and solutions will be made in order to revive it.