Investigation of Heavy Metals (Cd, Cr, Ni, Pb, Zn) in Islamshahr Groundwater Resources and their Regional Distribution Pattern in GIS

Subject Areas : Environment Pullotion (water and wastewater)

Fatemeh Valinejhad ¹ , Amir Hessam Hassani ² , Mojtaba Sayadi ³

1 - - MSc. Student of Environmental Engineering‚ Faculty of Environment and Energy‚ Science and Research Branch‚ Islamic Azad University‚ Tehran‚ Iran.
2 - Associate Professor of Environment and Energy Faculty‚ Science and Research Branch‚ Islamic Azad University‚Tehran‚ Iran. *(Corresponding Author)
3 - In Charge of Research Group of ABFAR Tehran and Assistant Professor of Azad University.

Received: 2011-08-27 Accepted : 2011-11-13 Published : 2016-11-21

Keywords: Heavy Metals, Groundwater pollution, distribution, Industrial activities, Farm activities,

Abstract :

Background and Objective: Nowadays, pollution of groundwater by heavy metals is encreasing. Heavy metals are one of the most widespread cause of pollution in water and the presence of increasing levels of these metals in the environment is causing serious concern in public opinion owing to their toxicity. This study aims to assess the concentration and distribution pattern of heavy metals (Cadmium, Chrome, Nickel, Lead and Zink) in groundwater of an industrialized region in Eslamshahr which located in the southeastern of Tehran   Method: Presently, groundwater is the predominant source of drinking water in this town. For this purpose, 92 samples were taken from 23 wells in 4 seasons.The concentration of heavy metals in the samples was measured by flame atomic absorption spectrophotometry. ARC GIS software was applied for preparing the distribution patterns. Results: The results showed that chrome and zinc concentrations were lower than the permissible level in the drinking water. However, the concentration of cadmium in 8.7% of samples taken in winter were higher than the permissible level determined in drinking water standard of Iran. Nickel concentration in winter was 8.7% higher than the permissible level. Lead concentration of samples in 47.8% and 4.35% of samples taken in summer and winter were higher than the permissible level, respectively. The high level of water pollution in southern part of Eslamshahr is attributed to the large number of industries, big farm lands, application of chemical fertilizers and the pesticides containing heavy metals, busy main and  secondary roads , and most importantly, the hydraulic slope from northwest to southeast of this region. 

References:

1-   نوری، جعفر و همکاران، «بررسی غلظت فلزات سنگین در چاههای آب مجاور کارخانه سرب و روی زنجان» ، مجله سلامت و محیط فصلنامه علمی پژوهشی انجمن علمی بهداشت محیط ایران، پائیز 1387، دوره اول، شماره اول.

2-   فروزان-شیرین، خلیل بنی حبیب-ابراهیم، رحیمی راد-امیر، معتمدیان-نوشین، محمدی-دانش، یگانه-سامال، «بررسی وجود فلزات سنگین، مقادیر نیتریت و نیترات و ویژگیهای میکربی آبهای معدنی موجود در بازار استان آذربایجان غربی» ،هجدهمین کنگره ملی علوم و صنایع غذایی، مهر 1387- مشهد مقدس-ایران.

3-   عالیقدر-مرتضی، حضرتی-صادق، قنبری-محسن، «اندازه گیری غلظت فلزات سنگین در منابع آب آشامیدنی شهر اردبیل در سال 85-84» ،دهمین همایش ملی بهداشت محیط، آبان 1386-همدان-ایران.

4-      Nouri ،J. ،Mahvi ،A.H. ،Babaei       ،A.A.،Jahed ،G.R. ،Ahmadpour ،E. ،2006.Investigation of heavy metals in groundwater.Pakistan journal of biological sciences ،Vol. 9(3) ،pp.377-384.

5-      Adefemi ،S.O. ،Awokunmi ،E.E. ،2010 .determination of physico-chemical parameters and heavy metals in water samples from Itaogbolu area of Ondo-State، Nigeria. African journal of environmental science and technology ،Vol.4 (3) ،pp.145-148.

6-      Momodu ،M.A. ،Anyakora ،C.A.،2010 .Heavy metals contamination of groundwater:the surulere case study. Research journal environmental earth science   ،Vol.2(1) ،pp.39-43.

7-      Nassef ،M. ،Hannigan ،R. ،El sayed ،K.L. ،Tahawy ،M.S.EL. ،2006 .Determination of some heavy metals in the invironment of sadat industrial city ،see information in:www.physicsegypt.org/epc06/epc621.pdf.

8-   یغمائیان ،کامیار ،«بررسی حذف فلزات سنگین(آرسنیک، کادمیوم، کبالت، کروم، آهن، نقره، نیکل، سرب، وانادیوم) ازپسابهای صنعتی توسط جلبکها» ،پایان نامه دکترا بهداشت محیط ،دانشگاه علوم پزشکی تهران ،دانشکده بهداشت و انستیتو تحقیقات بهداشتی.

9-      دفتر آمار و اطلاعات استانداری تهران ،سالنامه آماری استان تهران در سال 1385، 1385.

10- سازمان مدیریت و برنامه ریزی استان تهران ،سیمای اقتصادی اجتماعی شهرستان اسلامشهر در سال 1383 ، سازمان مدیریت و برنامه ریزی استان تهران، 1385.