The Impact of Anjir –tangeh Coal Washing Plant on Concentration of Some Heavy Metals in the Native Vegetation, Mazandaran Province, Iran

  • سال انتشار: 1392
  • محل انتشار: مجله بین المللی معدن و مهندسی زمین، دوره: 47، شماره: 2
  • کد COI اختصاصی: JR_IJMGE-47-2_006
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 565
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نویسندگان

Samaneh Safari Sinegani

PhD Student, School of Mining, Petroleum & Geophysics Engineering, Shahrood University of Technology

Arezoo Abedi

School of Mining, Petroleum & Geophysics Engineering, Shahrood University of Technology

Hamidreza Asghari

School of Agricultural Engineering, Shahrood University of Technology

Ali Akbar Safari Sinegani

Faculty of Agriculture, Department of Soil Science, Bu-Ali Sina University.

چکیده

A large volume of tailings has been produced in Anjir-tangeh coal washing plant for 22 years ofhuman activity. The coal washing activities have reduced plant diversity near the plant. Theenvironmental impact of coal washing plant on the vegetation around the factory was studied in twoseasons. The concentrations of Pb, Cd and Cr, measured in different native plant species, were innormal ranges in summer. In fall, the concentrations of Pb, Cd and Cr in the plants around the factorywere similar to those in plants in the control area. In summer, however, the metal concentrations wereconsiderably higher in plants grown near the factory than in the plants of the control area. Thisdifference was statistically significant at 0.01 levels for Cd, but not for Pb and Cr. Among the studiedplant species, Oxalis Sp had the highest Cd concentration (0.409 ppm), but Chenopodium album L hadthe lowest Cr concentration in summer. Season was an effective factor in the uptake of heavy metalsby plants; metal concentration in plants was considerably higher in fall than in summer.

کلیدواژه ها

coal washing plant, environmental impact, plants, Anjir-tange, heavy metal pollution

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