Science Letters

Risk Assessment of Dissolved Trace Metals by Chronic Daily Intake in Drinking Water of District Jamshoro, Pakistan

Amjad Hussain Memon 1*, Allah Bux Ghanghro 1, Taj Mohammad Jahangir 2, Hussain Ahmed Abro 3, Irshad Ghanghro 2

1 Institute of Biochemistry, University of Sindh, Sindh, Pakistan

2 Hitech Research Laboratory, University of Sindh, Jamshoro, Sindh, Pakistan

3 Beijing University of Chemical Technology, Beijing, China

Abstract

This study was conducted to observe probabilistic health burden of water samples collected season wise from Manchar Lake, river Indus, water supply schemes and ground water from different locations of Jamshoro, Sindh, Pakistan. The health burden was analyzed using USEPA standard methods to measure chronic and carcinogenic health quotients (HQ) of different metals such as As, Cd, Ni, Zn, Cu, Mn, Fe and Co in wet (phase 1) and dry (phase 2) seasons. The results declared that in phase 1 HQ of As and in phase 2 HQ of Cd indicated more adverse potential health effects. In addition, the carcinogenic risk of As was observed higher than the standard USEPA level in some samples. The HQ of other metals was increased in phase 2 compared to phase 1, reflecting more potential adverse health effects on local residents of District Jamshoro in the dry season. This study revealed the probabilistic chronic impact of different metals and carcinogenic impact of dissolved As on drinking water consumers.

Keywords Arsenic, hazard quotient, risk assessment, trace metals.

Received February 08, 2016 Accepted May 11, 2016 Abstract Published May 30, 2016 Manuscript Published August 15, 2016

*Corresponding author Amjad Hussain Memon E-mail ahmemon05@gmail.com Tel +92-333-2778622