Assess the degree of accumulation of substances priority/hazardous pollutants in soil and sediment sources around the Olt River, upstream and downstream of wastewater discharges from industrial platform Ramnicu Valcea

Abstract

This study was realized in order to determine the degree of substances priority/hazardous pollution in the industrial chemical platform of Ramnicu Valcea. Samples were collected in two campaigns, in February and June 2010 and nickel, copper, cadmium, 1,2 dichloroethane, trichlorethylene, 1,2,4 trichlorobenzene and perchlorethylene from water, soil and sediments was analized. The results show that heavy metals in sediments collected from the Olt river, (Priza Olt and Cremenari), had higher concentrations than in National Legislation. Also notice that in all three points, 1,2 dichloroethane, trichlorethylene, 1,2,4 trichlorobenzene and perchlorethylene taking values below the detection method. Concentrations of heavy metals in water were lower than the limits imposed by National Legislation. For organochlorine substances analyzed in three points, an increase of concentration for 1,2 dichloroethane, trichlorethylene and perchlorethylene in sections downstream of the chemical platform of Ramnicu Valcea (Cremenari and Babeni Marcea) to the Priza Olt upstream section of the platform.The concentrations of nickel, copper, cadmium, 1,2 dichloroethane, trichlorethylene, 1,2,4 trichlorobenzene and perchlorethylene in soil samples respect the limits by the Environmental Legislation. In Priza Olt and Cremenari points, were found a degree of accumulation of heavy metals higher compared Babeni Marcea point, located in downstream of wastewater discharges of chemical platform. There was an accumulation of organochlorine in sediments in the three points.