Heavy metal (Pb, Cd, Cr, Ni ) concentration in water sediments and fish was analysed from Madivala lake in the month of June 2008. There was an appreciable increase in metal concentrations in going from the water to the sediment samples.The Heavy metal concentration, in water was in the order Pb > Cr > Cd > Ni , in sediments Pb > Cr > Cd > Ni.

Zn, Cu and Pb levels in the aquatic phase and underlying surface sediment from three stations (viz. Shankarpur, Canning and Bali Islands) of the coastal zone of West Bengal during different seasons in 2002 were recorded. The order of the heavy metal level in the ambient media of the selected stations is Zn> Cu> Pb.

The ability of weathered coal to remove Cr(VI), Hg(VI), Hg(II), Cu(II) and Fe(II) from aqueous solution by adsorption was studied. In this work, adsorption of heavy metals on weathered coal has been studied by using batch techniques.

Environmental pollution has become a cause for great concern as it continues to increase rapidly day by day. The heavy metals, such as copper, lead, chromium and nickel are more toxic to the living organisms. In the present investigation, an attempt is made to remove the heavy metals using activated carbon of rice husk.

Concentrations of Hg, total organic carbon (TOC), Al, Fe and Mn were determined in sediment of the Amba Estuary between the mouth and the head over a distance of 24 km in December and May during 1997-2002. Temporal and spatial changes in metal concentrations appear to be due to sediment movement associated with tidal movements.

Vegetables (Beta vulgaris L., Abelmoschus esculentus L. and Brassica oleracea L.) from the production and market sites of India were tested for Cu, Cd, Zn and Pb. At market sites, the mean concentration of Cu in cauliflower, and of Zn and Cd in both palak and cauliflower had exceeded the PFA standard. Zn at the production sites also exceeded the PFA standard in cauliflower.

One way of managing waste