Risk assessment of pollution accidents in dam reservoirs, Using WRASTIC Model (Case study: Shafarood Dam, Guilan, Iran)
Subject Areas :Hamed Hassanpour Kourandeh 1 , Ebrahim Fataei 2
1 - کارشناس ارشد زمین شناسی زیست محیطی دانشگاه آزاد اسلامی واحد تنکابن
2 - استادیار گروه محیط زیست دانشگاه آزاد اسلامی واحد اردبیل
Keywords: risk management, Geographic Information System, Surface water resources, Weight combination,
Abstract :
Nowadays, important parts of water requirements for various sectors of agricultural, potable and industrial aresupplied from surface water resources. Population growth and civilization and also, industrial and agriculturaldevelopments increased the risk of water resources pollution. So, application of appropriate methods for themanagement of surface water quality seems necessary to consider. In this research, the risk of Shafarood damwhich is located in Guilan(northern Iranian province) was examined in the phase. In this study according to thehydrologic characteristics of the basin, potential of its pollution acceptance against contaminants were zoning.For this purpose, WRASTIC model and GIS were used. Required data for this model were collected by threeresearch methods of surveys, studies, and documents and use of experts opinions. So at the beginning, the fieldstudies were performed for identification of the study area. The next step was identification of pollutionresources influencing on Shafarood dam basin. The identified pollution resources were recorded by GPS, then,the pollution resources map was prepared by GIS software. Finally, the risk value of pollution resources wascalculated by WRASTIC model and according to major indicators, extent of the area and land usage. The riskvalue obtained from model calculations showed the moderate to high risk level caused by human and naturalactivities at this hydrological environment.
