Determination of heavy metal (Lead) concentration in water, gill, liver and muscles tissues of Capoeta capoeta in Palangrood River of Glian

Lead pollution due to toxic effects is one of the biggest problems of natural resources and environment. The current research have been done in winter 2012 till summer 2012, in order to measure the rate of pollution in the heavy metal, lead, in the water and the tissues of Lenkoran (Capoeta capoeta gracilis) fish (liver, gills and muscles) in Palangrood river, located in Abatar city of Somesara, Gilan province.
Water and fish samples have been collected from three specific stations. Water sampler and net vetch were used respectively for taking samples from water of the river and catching fish. After carrying out tests on the samples, we analyzed them statistically by excel software; also regression test was used for the study of cohesion.
The density of lead in gills, liver and muscles are respectively 50.7 mg/kg, 34.2 mg/kg and 24.3 mg/kg; according to data, lead density is higher than WHO, FAO, USFDA and NHMRC standards.
The results are showed that rates of the measured element in the samples higher than limitations of discussed standards and the region is densely polluted with the lead heavy metal.