METAL POLLUTION IN THE GOLDEN HORN, TURKEY - CONTRIBUTION OF NATURAL AND ANTHROPOGENIC COMPONENTS SINCE 1913

Historical records of the Golden Horn, so named in antiquity because o f its shape, were examined to construct the pollution history of the a rea and to find out the past and present-day entries of pollutants and hence the impact of man. The pollution level of the Golden Horn by me tals is presented by comparison which the continental soil and two oth er polluted water bodies: Savannah River Estuary and Narragansett Bay. Metals are distinguished as crustal and anthropogenic according to th eir enrichment factors. Information on how pollution level changes in time was shown using the concentration profiles of the elements betwee n years 1913 and 1988. Li, Na, K, Rb, Be, Mg, Ca, Sr, Ba, Al, La, Ti, V. Mn, Fe, Co and P in the Golden Horn sediments are in levels compara ble with those In continental soil. Cd, Cr, Ni, Cu, Zn, Ag, Pb, Mo, Ca , Sr, on the other hand, displayed enrichment through the surface stra ta. Elements were further grouped using factor analysis. As a result, an anthropogenic component, Whose origin is mainly domestic, two crust al components, and a sea-salt component were found to be the main cons tituents of the Golden Horn sediments.