Printer Friendly

Hazard assessment of radionuclides in soil and sediments of Malakand District, Khyber Pakhtunkhuwa.

Byline: Bushra Saba and Seema Anjum Khattak

Abstract

This study is aimed to conclude NORM (Naturally Occurring Radioactive Material) in soil and sediment samples ofMalakand. For this reason, 25 soil and sediment samples were collected from Malakand district. To determine the activity concentration of Ra226, Th232 and K40 and to assess their radiological hazards analysis on the collected samples were carried out by using gamma ray spectrometry consisting ofhigh purity germanium (HPGe) detector. The activity concentrations calculated are given in the unit ofBq kg-1. Activity concentrations ofRa226, Th232 and K40 in the samples were determined to be 55 +-0.74 (6-181), 45 +- 0.75(8-73) and 734 +- 6.6(65-1648) Bq kg-1 respectively. The maximum value ofradium equivalent activity was less than recommended value 370 Bq kg-1 but was higher than country's soil. The results were compared with the international recommended values and country's soil and sediments.

The hazards ofthe radiological indices and measurement rates in this study were higher than their worldwide mean values however lower than their maximum suggested limits demonstrating that soil and sediments don't impose any health hazard.Malakand soil can be regarded as having normal levels ofnatural background radiation.

COPYRIGHT 2016 Asianet-Pakistan
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2016 Gale, Cengage Learning. All rights reserved.

Article Details
Printer friendly Cite/link Email Feedback
Publication:Journal of Himalayan Earth Sciences
Date:Dec 31, 2016
Words:232
Previous Article:Concrete the greatest source of depletion (A step towards economical and sustainable construction).
Next Article:Prospect evaluation and fault seal analysis of reservoir potential massive sands with Seismic and well log data in Sinjhoro, Pakistan.
Topics:

Terms of use | Privacy policy | Copyright © 2020 Farlex, Inc. | Feedback | For webmasters