بررسي غلظت فلزات سنگين روي ، مس ، آهن ، كروم رسوب ) در رسوبات سطحي سواحل بندرعباس

A Survey of Heavy Metal Concentration in the Upper Sediment Layers of Bandar Abbas Coasts

The effects resulting from commercial and economical activities on bio - marine environment of Bandar Abbas coasts were studied. Nine transects were considerd vertical to coast line while 13 stations determined in each transect. Three transects were to the east of Bandar Abbas and 6 in west of Shahid Bahonar Platform to west of Shipping Complex. Samples were taken twice in each station and then the rates of zinc, copper, iron, chromium, and lead measured by atomic absorption application. Sampling and analyses were performed according to the standard method MOOPAM, 1989. Results indicate the concentration of copper as equal to 33.2ppm, chromium 68.3 ppm, iron 34.5 g/kg and lead as 3.4 ppm. The concentration of metals (assessed according to Sediments International Standards) indicate all metals except chromium to be lower in to amount as compared to international standards. This concentration as compared to regional control samples show the region is contaminated with copper, zinc and chromium. Therefore it was concluded that commercial and industrial activities in the region give rise to contamination (copper , zinc and chromium), even though such a contamination (excepting chromium) is less than that in international standards. The relation coefficients among elements indicate that the sources of contamination of zinc, copper, chromium, and lead are similar, whereas iron, beacause of its diffusion, has earthen (terrestrial) origin. SPSS program was needed to be employed for statistical calculations.