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Submitted: 20 Jul 2018
Revised: 14 Oct 2018
Accepted: 28 Nov 2018
First published online: 29 Dec 2018
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Avicenna J Environ Health Eng. 2018;5(2):73-77.
doi: 10.15171/ajehe.2018.10
  Abstract View: 135
  PDF Download: 158

Research Article

Health Risk Assessment of Inorganic Arsenic Through Groundwater Drinking Pathway in some Agricultural Districts of Hamedan, West of Iran

Soheil Sobhanardakani 1 * ORCID logo

1 Department of the Environment, College of Basic Sciences, Hamedan Branch, Islamic Azad University, Hamedan, Iran

Abstract

Groundwater resources are an important portion of potable water in Hamedan Province, Iran. Therefore, monitoring the pollutants especially heavy metals in these resources are vital to protect the residents’ health. This study aimed to assess the health risks caused by inorganic arsenic pollution through groundwater drinking pathway in four important agricultural areas of Hamedan Province, Iran. In so doing, a total of 180 groundwater wells were chosen randomly for sampling during the spring and summer seasons in 2015. The samples were filtered (0.45 μm), preserved with HNO3 at a pH level lower than 2, and stored in acid-washed polyethylene bottles at 4°C for further analysis. Finally, arsenic content was determined using inductively coupled plasma- optical emission spectrometry (ICP-OES). The results showed that the mean contents of arsenic (mg/L) in groundwater samples taken during the spring were 0.052 for Asadabad plain, 0.007 for Ghahavand plain, 0.006 for Razan plain, and 0.004 for Toyserkan Plain; whereas, the mean content in groundwater samples taken during the summer from Asadabad, Ghahavand, Razan, and Toyserkan plains were 0.058, 0.009, 0.007, and 0.004, respectively. Moreover, based on the computed values of the noncarcinogenic risk of groundwater samples from Asadabad plain, the hazard quotient (HQ) was greater than 1. Therefore, a non-carcinogenic effect is considered to be possible for the inhabitants of this study area. Accordingly, serious considerations including managing the use of agricultural inputs especially arsenical pesticides or herbicides and treatment of arsenic-contaminated groundwater with some proper methods before water ingestion are recommended.
Keywords: Arsenic, Water quality, Health risk, Agricultural areas,
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