Iraqi marshes are one of the most important biodiversity in the world. They had many problems: bad environmental conditions, as well as decreasing of the amount of water that reaches marshes after restoration, in addition to the increase in the source of pollution around the marshes as a result of villages, hospitals, factories ….etc. All these reasons cause dispersion of pollutants in the marshes. This research study the source of pollution such as ( industrial, agricultural, medical, political and waste water) in Nassiriya marshes and project them on the digital maps to generate a final map represents all the sources of pollutants in this region. The research shows the environmental and medical effects of this pollutants and comprising them with the Iraqi environmental legislations.