Evaluation of some heavy metals contaminated soils around the Shahid Salimi power plant, Neka, Mazandaran Province, Iran

Marjan Sedghi


One of the most important problems threatening the health of natural resources and, in turn, the food safety of societies is environmental contamination. Heavy metals are considered as the environmental pollutants. The entry of heavy metals into the soil is done through the atmospheric sources and mostly via melting plants, oil refieries and power plants. Due to the mazut consumption in some seasons, power plants are considered as a threat to the soil. This study was conducted with the aim of evaluating contamination of some heavy metals including copper, zinc, cadmium, lead, and nickel in the soils around the Shahid Salimi power plant, Neka located in Mazandaran province, north of Iran. One of the greatest threats is the possible contamination of cultivated paddy by pollutant elements. A number of 50 samples from the soil around the power plant were taken from a depth of 0–20 cm within the form of a regular grid and the concentration of the corresponding metals was measured in each of them. The mean background concentration of copper, nickel, lead, zinc, and cadmium was 36.2, 339.8, 90.8, 13.8, and 0.20 mg∙kg, respectively. The maximum mean contamination factor belongs to nickel, lead, copper, zinc, and cadmium, respectively. The frequency of the obtained contamination evaluation classes indicates that the majority of the analyzed samples have a medium level of contamination. Copper, nickel, and lead belong to the class of very high contaminants. By comparing the concentrations of the heavy metals of studied region with quality standard of Iranian soil resources, presented by the Department of Environment Protection of Iran, it was observed that the concentrations of cadmium, zinc, and copper have been signifiant at the level of 5% based on the standards determined by the agency for agricultural uses, environmental standard and groundwater level. In other words, they do not have conflct with the determined standard at any of the three levels.


background concentration, contamination factor, heavy metals, Mazandaran province, soil contamination

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Azimzadeh, B., Khademi, H., 2013. Estimation of background concentration of selected heavy metals for pollution assessment of surface soils of Mazandaran province, Iran. Journal of Water and Soil (Agricultural Sciences and Technology), 27(3): 548–559.

Barati, S., Ghaffari, N., Khodakarami, L., Safyanian, A., 2012. The spatial distribution of chromium, cobalt, and nickel in the superfiial soils of Hamedan province. Issue of natural environment. Iranian Journal of Natural Resources, 65(3): 283–295.

Bhuiyan, M.A.H., Dampare, S.B., Islam, M.A., Parvaz, L., Suzukia, S., 2010. Heavy metal pollution of coal mine-affected agricultural soils in the northern part of Bangladesh. Journal of Hazardous Materials, 173: 384–392.

Blaser, P., Luster, J., Shotyk, W., Zimmermann, S., 2000. Critical examination of trace elements and depletions in soils: As, Cr, Cu, Ni, Pb and Zu, in Swiss forest soils. Science of the Total Environment, 249: 257–280.

Borzin, M., Afyouni, M., Kheirabadi, H., 2015. An investigation into pollution of selected heavy metals of surface soils in Hamadan province using pollution index. The Journal of Agricultural Technologies and Sciences and Natural Resources. Water and Soil Sciences, 19(72): 69–79.

Carlon, C.,2007.Derivation Methods of Soil Screening Values in Europe: A Review and Evaluation of National Procedures Towards Harmonization. European Commission, Joint Research Center, Ispra, Lombardy, Italy.

Chen, J.S., Adriano, D.C., Wei, F.S., Zheng, C.J., Wu, Y.Y.,1991. Background concentrations of elements in soils of China. Water, Air, and Soil Pollution, 57: 699–712.

Dankoub, Z., Ayoubi, S., Khademi, H., Lu, S.G., 2012. Spatial distribution of magnetic properties and selected Heavy metal in calcareous soils as affected by land use in the Isfahan region, central Iran. Pedosphere, 22: 33–47.

De Meeus, C., Eduljee, G.H., Hutton, M., 2002. Assessment and management of risks arising from exposure to cadmium in fertilizers. Science of the Total Environment, 291: 167–187.

Esmaeili, M., Jafari, H., Khoshzaman, V.T., Takasi, M., Tabandeh, L., Taheri, M., 2011. The zoning of contamination status of zinc and lead in the soils of the water lands of Zanjan town. The 12th Congress of Iranian Soil Sciences, 1–3 September, Tabriz.

Facchinelli, A., Mallen, L., Sachi, E., 2001. Multivariate statistical and GIS-based approach to identify heavy metal sources in soils. Environmental Pollution, 114: 313–324.

Farabi, S.M.V., 2009. The research plan for investigation of the effects of cooling devices and the wastewater of Shahid Salimi power plant in Neka on the environment and the aquaculture of Caspian Sea. The Environmental Administration of Mazandaran Province.

Gilbert, R.O., 1987. Statistical Methods for Environmental Pollution Monitoring. John Wiley & Sons, New York.

Hakanson L., 1980. An ecological risk index for aquatic pollution control: A sedimentological approach. Water Research, 14: 975–1001.

Kabata-Pendias, A., Pendias, H., 2001. Trace Elements in Soils and Plants, (3rd edition). CRC Press, Boca Raton, London.

Mousavi, A., 2011. Investigation of the spatial distribution of some heavy metals in the soils of Hamedan Province. Journal of Soil Research (Water and Soil Sciences), 4(25): 323–336.

Power Research Center, Environmental Sector, 1996. The report of investigation of air pollution of Shahid Salimi power plant (Neka).

Rodriguez Martin, J.A., Grau Corbi, J.M., Lopez Arias, M., 2006. Heavy metals contents in agricultural topsoils in the Ebro basin (Spain). Application of the multivariate geostatistical methods to study spatial variations. Environmental Pollution, 144: 101–112.

Standard Methods, Examination for Water and Waste Water, 2005, (21 st edition).

Taghipour, M., Ayoubi, S., Khademi, H., 2011. Contribution of lithologic and anthropogenic factors to heavy metal in surface soils of western Iran: Use of multivariate geostatistics. Journal of Soils and Sediments, 20: 921–937.

The Standard for the Quality of Soil Resources and Its Guide, 2016. Iranian Environmental Protection Organization, 30–35.

Ye, C., Li, S., Zhang, Q., Zhang, Y., 2011. Assessing soil heavy metal pollution in the water-level-flctuation zone of the Three Gorges Reservoir, China. Journal of Hazardous Materials, 191: 366–372.

Yeganeh, M., 2012. Modeling of the trend of accumulation of heavy metals in superfiial soils of Hamedan Province and determination of the risk resulting from it on human health. The Doctoral Thesis of Pedology, Isfahan Industrial University.

Yongming, H., Junji, C., Peixuan, D., Posmentierm, E.S., 2006. Multivariate analysis of heavy metal contamination in urban dusts of Xi’an, Central China. Science of the Total Environment, 355: 176–186.

Zhang, Q., Huang, B., Shi, X.Z., Sinclair, F.L., Wang, T.J., Yu, D.S., 2007. Surface water quality of factory based and vegetable based peri-urban areas in the Yangtze River Delta region, China. CATENA, 69(1): 57–64.

DOI: http://dx.doi.org/10.17951/pjss.2019.52.1.129
Data publikacji: 2019-05-29 08:10:50
Data złożenia artykułu: 2018-11-15 10:06:31


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