Solid waste is defined as any garbage, refuse, sludge from waste treatment plant, water supply treatment plant, or air pollution control facility and other materials, including solid, liquid, semisolid, contained gaseous resulting from industrials, commercials, mining and agricultural operations from community activities . The groups at risk from the unscientific waste disposal include : Populations in areas where there is no proper waste treatment method. children Waste workers Populations living close to waste dump Animals