The Impact of Jajarm Alumina Plant on Topsoil Contamination with Lead

Subject Areas : environmental management

Mehdi Elahi ¹ ( Faculty of Department of Environmental Sciences, Ardakan University, Yazd, Iran * (Corresponding Author). )
Soheila Rezaitabar ² ( Ph.D Graduate of Department of Environmental Sciences, Tarbiat Modares University, Tehran, Iran. )
Abdolali Vahdani ³ ( Master Graduate of Department of Environmental Sciences, Tarbiat Modares University, Tehran, Iran. )
Mohamad sharif Fazeli ⁴ ( - Director and Faculty Member of Pazhvaak Environmental Economics Research Institute, Tehran, Iran. )

Received: 2012-01-10 Accepted : 2012-06-13 Published : 2016-11-21

Keywords: Lead, Topsoil, Jajarm Alumina plant, Bauxite ore,

Abstract :

Background and Objective: Presence of heavy metals in different parts of the environment (such as, soil) has adverse effects on organisms’ health. The main sources releasing these pollutants to the environment are industries and mines. Therefore, in this study, the effect of Jajarm Alumina plant (located in North Khorasan province) on contamination of topsoil with Lead (Pb) around the factory, has been proceed. Method: Sampling of topsoil (depth < 10 cm) was carried out in 2008, considering the dominant wind direction (Northwest-Southeast) and distance from factory. 38 sites in 10 km of radius around the factory and also one evidence site 20 km away from the factory were studied. After preparing samples, Pb concentration was measured by atomic absorption spectrometry (Philips, PU 9400). Results: Comparison of mean concentration of Pb in main geological directions of the factory, showed a significant difference between them (p < 0.05). Despite the direction of dominant wind, maximum and minimum mean concentrations of Pb were observed in the north (27.34 mg/kg) and south (9.40 mg/kg) respectively. Also, investigation of relationship between Pb concentrations with distance from the factory (in main geological directions) showed a positive significant correlation in the east of the factory. Conclusion: Overall, results showed that Jajarm Alumina plant has not a significant effect on topsoil contamination with Pb

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