Optimum location for landfills landfill site selection using GIS technique: Al-Naja city as a case study

Solid waste is one of the leading environmental problems affecting human lives. Selecting a landfill where disposed complicated issue that related to many factors and regulations. In this study, optimal sanitary site for An-Najaf city was assessed using GIS weight criteria method. Eight appropriate were selected, which are: urban area, rivers, roads, soil types, elevation, wind, slope, archaeological, historical religious sites. Moreover, weighting by experts’ opinion previous similar literature. The “weighted overlay tool” then applied get map significance index selected Seven suitable sites with an area 177,762,986 m2 form 0.62% from total can accommodate solid generated period, not less than ten years10 years.