Document Type : Research article

Author

1- Associate Professor, Department of Geology, Mashhad Branch, Islamic Azad University, Mashhad, Iran

Abstract

Abstract
Background and Aim: Heavy metals contamination of soils is one of the main environmental problems. Heavy metals are considered as one most dangerous groups of pollutants because of their toxicity and stability. The biological and ecological importance of heavy metals is due to their characteristics of polluting, their toxicity, persistence and bioaccumulation. The aim of this study was to investigate the spatial distribution of heavy metals in region Dehnow Shandiz (North West of mashhad).
Materials and Methods: In the present study, 20 soil samples (10-30 cm depth) collected and total concentration of As, Cd, Co, Cr and Ni were measured using Atomic absorption spectrophotometer device. Also, some other soil properties including PH, Organic carbon, CEC and soil texture proportions were measured.
Results: The results showed that the average concentrations of As, Cd, Co, Cr and Ni in the study area were 10.87, 0.26, 14.8, 56.6 and 68.2 mg/kg respectively. Also the results of statistical analysis showed that the standard deviations of As, Cd, Co, Cr and Ni in the study area were 1.97, 0.16, 1.32, 19.47 and 17.39 respectively.
Conclusion: The results indicate that the average concentration of Ni in the soil of study area were higher than the standard of the Environmental Protection Organization of Iran and As, Cd, Co and Cr were lower than the standard. The presence of serpentinite soils has increased the concentration of nickel in the region.
Document Type: Research article

Keywords

1-Babaei H, Ghanavati N, Nazarpour A. Contamination level of mercury in the street dust of Ahvaz city and its spatial distribution. Journal of water and soil science (Science and Technology of Agriculture and Natural Resources), Isfahan University of Technology. 2018; 22(3): 249-259 (in Persian).
2-Moradi Q, Mirzaei R. Spatial variability analysis of heavy metals in street dust of Khashan city. Journal Health and Environ. 2017; 9(4): 443-456 (in persian).
3-Hadia F, Ambreen A. Heavy metal pollution-A mini review. Journal of Bactreriology and Mycology. 2018; 6(3): 179-189. 4-Atabaki M.R, Lotfi A. Investigation of soil heavy metals concentrations (Pb, Cd, Zn and Cu) in different areas of Isfahan in 1396. 2018; 4(1): 21-30 (in Persian).
5-Rehman K., Fatima F, Waheed I, Akash, M.S.H ..Prevalence of exposure of biochemistry. Heavy metals and their impact on health consequences. Journal of cellular. 2018; 119(1): 157- 184.
6-World Health Organization (WHO). Arsenic in drinking water. Guidelines for Drinking Water Quality.2017; 11p.
7-World Health Organization (WHO). Chromium in drinking water. Guidelines for Drinking Water Quality, 21p.
8-Yang S, Zhao J, Chang S.X, Collins C, Xu J, Liu X. Status assessment and probabilisitic health risk modeling of metals accumulation in agriculture soils across Chia: A synthesis. Environ Int 2019; 128: 165-174.
9-Li C, Zhou K, Qin W, Tian C, Qi M, Yan X, Han W. Areview on heavy metals contamination in soil: effects, source, and remediation techniques. Soil and Sediment Contamination: An International Journal. 2019; 28(4): 380-394.
10-Lentini P, Zanoli L, Granata A, Signocelli S.S, Castelino ., Dell Aquila R, Kidney and heavy metals. The role of environmental exposure. Molecular medicine reports. 2017; 15(5):3413- 3419.
11-Aazami J, Taban, P. Monitoring of heavy metals in water, sediment and phragmites australis of Aras River along the Iranian- Armenian Border. Iranian Journal of Toxicology. 2018; 12(2):1-6.
12- Ebqa ai M, Ibrahim B. Application of multivariate statistical analysis in the pollution and health risk of traffic related heavy metals.Enviromental Geochemistry and Health. 2017; 39: 1441-1456.
13- Zhong T, Xue D, Zhao L, Zhang X. Concentration of heavy metals in vegetables and potential health risk assessment in China. Environ Geochem Health, 2018; 40(1):313-322.
14-Coleman R.G. Ophiolites: Ancient oceanic lithosphere Berlin. Germany Speringer-Verlag, 1999; 229 P.
15-Oze C, Fendorf S.k, Bird D, Coleman R. Chromium geochemistry of serpentine soils, International Geology Review. 2004; 46:97-126.
16-Salminen R, Tarvainen T. The problem of difining geochemical baselines, a case study of selected elements and geological materials in Finland. J Geochem Expl. 1997;60:91-98.
17- Malekzadeh Z. Distribution of lead, cadmium and nickel in Bakhtiar range of Isfahan plain [dissertation]. Isfahan University of Technology 2014 (in persian).
18-Shamshiri S, Mahmodi Gharaei M.H, Abrishamchi P. Evaulation of soil contamination in ophiolithic region of Rpbat Sefid (Khorasan Razavi). Journal of Environmental Research, 2017; 8(15):165-178 (in Persian).
19-Fazel Valipour M.E, Fazel Valipour B, Dabiri R. Geochemical and environmental assessment of the heavy metals in Robat Sefid region (South of Mashhad) soil, Journal of Environmental Geology, 2018;12(42): 45-60 (in Persian).
20-Punturo R, Ricchiuti C, Bloise A. Assessment of serpentine group minerals in soils: A case study from the village of San Severino Lucano (Basilicata, Southern Italy). Fibers, 2019; 7(2) :18.
21-Pourlatifi A. Geological map 1:100000 Torqabeh, ministry of mines and metals, Geological Survy of Iran, 2001. 9 (in Persian).
22- Cao H.F, Chang A.C, Page A.L. Heavy Metal Contents of Sludge-Treated Soils as Determined by Three Extraction Procedures. J Environ Quall, 1984; 13(4):632-634.
23-Weaver R.W, Angle J.S, Bottomley P.S. Methods of soil analysis, microbiological and biochemical properties, part II, Soil Science of America INC, Wisconsia.1994.
24- Klute A. .Methods of soil analysis, part I, physical and mineralogical methods, Soil Science Society of America INC, Wisconsia.1986.
25- Schumacher B.A . Methods for the determination of total organic carbon (TOC) in soils and sediments, Ecological Risk Assessments Support Center Office of Research and Development US. Environmental Protection Agency, 2002.
26-Sauve S, Hendershot W, Allen H.E. Solid-Solution partitioning of metals incontaminated soils: dependens on PH. total metal burden, and organic matter. Environmental Science and Technology, 2000;34(7):1125-1131.
27- Sharma S.K. Heavy Metals in Water: Presence, Removal and Safety. Royal Society of Chemistry, 2014.
28-Hooda P.S.Trace elements in soils, Wiley publication,2010, 596P.
29-Kabata-Pedias A, Mukherjee A.B. Trace elements from soil to Human, Springer Berlin Heidelberg New York, 2007.
30-Buekers J, Amery F, Maes A, Solders E. Long-term reaction of Ni,Zn and Cd with iron oxyhydroxides depend on crystallinity and structure and on metal concentrations, Eur.J. Soil Sci.2008;59:706-715.
31-Uren N.C. Forms reaction and availability of nicle in soil, Adv.Agron, 1992; 48: 141-203.
32-Luo L, Ma Y.B, Zhang S.Z, Wei D.P, Zhu Y.G. An inventory of heavy metal inputs to agricultural soils in China: J. Environ. Manage. doi: 10.1016/j.jenevman.2009:1-11.
33-Senesi G.S, Baldassarre G, Senesi N, Radina B. Trace element input into soils by anthropogenic activities and implications for human health, Chemosphere, 1999; 39: 343-377.
34-Salavati-Nik S, Saadat S, Allameh M.E. nvironmental study of the distribution of heavy metals contamination in soils of Sheshtamad area (Northeastern Iran), Journal of Water and Soil,2020; 34(3): 721-7
 35-Fazel Valipour M.E, FazelValipour B, Dabiri R. Geochemical and environmental assessment of the heavy metals in Robat Sefid region (south of Mashhad) soil, Journal Environmental Geology,2018; 12(42) :45-60 (In Persian).
36-Ghasemi Dehnavi A. Assessment of heavy metal contamination of serpentinite soils, Harsin – Sahneh region, Kermabshah, Journal Applied Sedimentology,2020;8(16): 93-104. (In Persian).
37-Haghparast M, Torshizian H, Dabiri R. Assessment of heavy metals concentrations and pollution in sediments of Almejogh ophiolite region (northeast of Iran), J. Env.Sci.Tech, 2019;21(4): 93-103 (In Persian).