عنوان مقاله [English]
Investigating the birds as an indicator of heavy metal pollution is very useful because the biology of birds is well-known, also birds feed on the higher trophic in the ecosystems, so they can provide information about the extent of pollution in the entire food web. This research was done in 2018 to investigate the distribution of heavy metals (lead, iron, zinc, copper, manganese) in different tissues (kidney, liver, muscle, and feather) of Passer domesticus in Dezful city. A total of 60 domestic sparrows from the urban area and 10 from a rural area (Abolhassan village of Dezful city) were randomly collected in the spring with the help of local natives. Biometric characteristics such as body length, wing length, weight and gender were also studied. Acid digestion method was used to prepare the samples. The results were analyzed using SPSS software. The order of accumulation of heavy metals in the feather of Passer domesticus in rural and urban areas was: Fe> Zn> Mn> Pb> Cu. Based on the results, the average Fe, Cu, Zn and Mn in urban areas were 106.67, 1.95, 12.43, 32.41 mg/kg and 2.69 mg/kg for Pb respectively. Also, the average concentrations of heavy metals of Fe, Cu, Zn and Mn in the gentian organs of rural areas were 95.96, 1.26, 100.44, 23.88 mg/kg and 2.75 mg/kg for Pb respectively. Comparison between mean values of zinc and manganese in rural and urban areas were significantly at the level of 0.05.