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Asian Journal of Biological Sciences
Year: 2011  |  Volume: 4  |  Issue: 3  |  Page No.: 300 - 305

Air Pollution Tolerance Indices of Some Plants Around Industrial Zone in South of Iran

S.M. Seyyednjad, K. Majdian, H. Koochak and M. Niknejad    

Abstract: The study examined Air Pollution Tolerance Indices (APTI) of four plant species around petrochemical station in south west of Iran and compared with unpolluted area. Four physiological and biochemical parameters; ascorbic acid content (AA), leaf Relative Water Content (RWC), leaf extract pH and total leaf chlorophyll (TCh) were used to compute the APTI values. The result showed that combining variety of these parameters gave a more reliable result than those of individual parameter. The result showed order of tolerance in polluted area as E. camaldulensis (8/5)> A. lebbeck (8/1)> C. salignus (7/9)> P. juliflora (5/8) and in unpolluted area as E. camaldulensis (8/4)> A. lebbeck (6/7)> C. salignus (6/2)> P. juliflora (6/6). These results show that in cases that APTI increase from control site to polluted site improve the species tolerance to pollution stress.

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