[Accumulation of heavy metals in the sediments of Shenzhen Bay, south China].

Heavy metals concentrations in marine sediment cores of Shenzhen Bay were measured, and the profile distribution characteristic of heavy metals was discussed. Combined with the 210 Pb dating results, the contamination history of heavy metals was studied in high resolution records, and the metal accumulation processes were also analyzed. The results indicated that the concentrations of heavy metals was relatively low compared with other area in the world, but the elements of Pb, Cu and Zn were obviously contaminated by anthropogenic impact. The rapid economical development of Shenzhen in the last 20 years and Hong Kong in 1960-1970s contributed much on accumulation of heavy metals in the sediments.