Heavy metals in the water might be accumulated in the sediments as well in the benthic organisms such as clam. To understand the Pb and Cr content, a research has been conducted in May 2019. The water, sediment and clam samples were taken from 3 sampling sites, in the area close to mangrove (S1), around the shipyard and settlement area (S2) and around the port and settlement area (S3). Sam…