Dissolved Concentrations, Sources, and Risk Evaluation of Selected Metals in Surface Water from Mangla Lake, PakistanReport as inadecuate




Dissolved Concentrations, Sources, and Risk Evaluation of Selected Metals in Surface Water from Mangla Lake, Pakistan - Download this document for free, or read online. Document in PDF available to download.

The Scientific World Journal - Volume 2014 2014, Article ID 948396, 12 pages -

Research ArticleDepartment of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan

Received 30 August 2013; Accepted 4 February 2014; Published 9 March 2014

Academic Editors: A. Gambaro, D. W. Metge, and C. Vereda-Alonso

Copyright © 2014 Muhammad Saleem et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The present study is carried out for the assessment of water quality parameters and selected metals levels in surface water from Mangla Lake, Pakistan. The metal levels Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Na, Ni, Pb, Sr, and Zn were determined by flame atomic absorption spectrophotometry. Average levels of Cd, Co, Cr, Ni, and Pb were higher than the allowable concentrations set by national and international agencies. Principal component analysis indicated significant anthropogenic contributions of Cd, Co, Cr, Ni, and Pb in the water reservoir. Noncarcinogenic risk assessment was then evaluated using Hazard Quotient and Hazard Index following USEPA methodology. For adults and children, Cd, Co, Cr, and Pb emerged as the most important pollutants leading to noncarcinogenic concerns via ingestion route, whereas there was no risk via dermal contact of surface water. This study helps in establishing pollutant loading reduction goal and the total maximum daily loads, and consequently contributes to preserve public health and develop water conservation strategy.





Author: Muhammad Saleem, Javed Iqbal, and Munir H. Shah

Source: https://www.hindawi.com/



DOWNLOAD PDF




Related documents