An assessment of metal contamination in Caspian Sea sediments

Full text: The Caspian is the largest inland body of water in the world, containing some 44 % of the globe's inland waters. The Caspian Sea occupies a deep depression on the boundary between Asia and Europe with a water level at present 27 m below sea level. The main sources of pollution to the Caspian Sea have generally been considered to be offshore oil production and land-based sources, notably the Volga River. In this study heavy metal concentration and relationships between sedimentary components and metal concentration and relationships between different (various) heavy metal concentrations in sediment samples of Caspian sea were investigated to obtain information about the sources and degree of metal contamination Sediments samples from the stations were collected by Van Veen Grab fitted with stainless-steel jaws