Heavy metals in the environment are generally not favourable because of their nonbiodegradeable and accumulative nature.In developing countries,among various other anthropogenic sources industrial estates are considered to be one of the important source of environmental pollution.The present study is an attempt to investigate the heavy metal contamination in one of the industrial estates of Pakistan.It was carried out in Kahuta Industrial Triangle,Islamabad from Feb 2012-Aug 2012.Samples of soil,vegetation and water were collected randomly from the vicinity of industrial area and were assessed for five heavy metals(Cd,Cu,Ni,Pb and Zn).These heavy metals were analyzed through atomic absorption spectrophotometer.Results of soil analysis showed contamination by heavy-metals in the order of Cd > Cu > Ni > Pb >Zn.Except Cd other metals detected were within the permissible limits.The selected plants analyzed for heavy metals in the area i.e.(Dalbergia sisso,Morus alba,Eucalyptus camaldulensis,Triticum aestivum)showed that except Cd and Pb,the remaining three heavy-metals were within the permissible limits.The order of heavy-metals in plants was Cd > Pb > Cu > Zn > Ni.Biological Accumulation Coefficient showed that some of the studied plants can accumulate Cd.The analysis of groundwater showed that Cd,Ni and Pb were above the permissible limits given by National Environmental Quality standards while Cu and Zn were below the permissible limit.The heavy metals in ground water were present in the order,Pb > Cd > Ni > Cu > Zn.Correlations analysis showed mixed type of correlations between heavy-metals in soil,plants and water.