Paper Information

Journal:   GEOGRAPHICAL JOURNAL OF CHASHMANDAZ-E-ZAGROS   WINTER 2010 , Volume 1 , Number 2; Page(s) 79 To 88.
 
Paper: 

BIOMONITORING OF AIR AND SOIL POLLUTION IN KARAJ

 
 
Author(s):  GHOLAMI ALI, ESTEKI KH.
 
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Abstract: 

Development of industry and heavy traffic in developed and some developing countries resulted pollution of resources such as soils, air and waters. Because of the pollution of environment, monitoring of soil, water and air pollution is of major importance. Biomonitoring of pollutants has been attracting attention of many investigators since early decided of 20th century and even earlier some plants and animals has been used as biomonitors in many parts of the world. We used acacia trees in other to monitor the intensity of soil and air pollution to some heavy metals (Fe, Zn, Pb, Cu, Mn and Cd) in the city of Karaj. Concentration of these heavy metals in soils, washed and unwashed leaves of Fraxinus , for four cites ( Azimieh highway Taleghani highway, Hashtgerd industrial zone and Nazarabad village) were collected in two stages ( Jun and September ) for chemical analysis. Chemical analysis of soil samples at depth of 0-10cm showed that concentration of most of these elements was lower than the maximum recommended levels. Concentration of measured heavy metals in washed leaves was lower than those of unwashed leaves of Fraxinus and different was significant. The stages of leaf sampling did not show any significant effect on the concentration of the measured heavy metals in leaf samples. There was no significant correlation between the concentrations of heavy metals in washed leaves is the concentration of these metals in soil samples. Results of this investigation showed that the industry and traffic were the main source of air heavy metal pollution in Karaj, and Fraxinus tree is a dependable biomonitor for air and soil pollution investigations.

 
Keyword(s): BIOMONITOR, FRAXINUS TREE, HEAVY METALS, AIR POLLUTION, SOIL POLLUTION, INDUSTRIAL REGION, HEAVY TRAFFIC
 
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