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Evaluation of Pollution Intensity in Different Districts of Tehran Based on Measuring Chlorophyll, Plumb and Cadmium Heavy Metal Contents in Trees | ||
International Journal of Environmental Research | ||
مقاله 26، دوره 8، شماره 4، دی 2014، صفحه 1105-1114 اصل مقاله (322.13 K) | ||
نوع مقاله: Original Research Paper | ||
شناسه دیجیتال (DOI): 10.22059/ijer.2014.804 | ||
نویسندگان | ||
S. Ali Ahmad Korori* 1؛ M. Matinizadeh2؛ A. Shirvany3؛ E. Madani Mashaei1؛ T. Talebi Khorabadi1؛ S.M. Monemian4؛ E. Abdi3 | ||
1Technology of natural sustainable ecosystem research group, Karaj, Iran | ||
2Research Institute of Forests and Rangelands, Tehran, Iran | ||
3Department of Forestry, Faculty of Natural Resources, University of Tehran, Karaj, Iran | ||
4Faculty of Forest science and ecology, University of Gottingen, Germany | ||
چکیده | ||
Plane and Mulberry trees play a crucial role in purifying the polluted air in Tehran as a major city. In this research, 13 main districts of Tehran city were chosen as study area. 20 completely healthy Plane and Mulberry species were selected in similar ecological conditions and age range. The uptake of Cd and Pb was determined using Spectrophotometry, whereas the Chlorophyll content was measured applying ICP method. The statistical results of Chlorophyll data put the Mulberry and Plane trees of the studied district into 9 classes (Dunkan statistical test). The statistical results put the studied districts in terms of amount of Pb uptake in 3 classes for Plane trees and in 5 classes for Mulberry trees. The districts were classified in 5 classes for plane trees and in 4 classes for Mulberry trees in terms of amount of Cd uptake. In general, the uptake content of Cd and Pb is higher in Plane trees in comparison with Mulberry ones. In other words, Plane trees are more sensitive to the uptake of contaminants than Mulberry trees. Finally, GIS maps were designed showing the average uptake of contaminates in each district. | ||
کلیدواژهها | ||
Plane tree؛ Mulberry tree؛ Phytoremediation؛ Tehran؛ Contaminants | ||
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