Aquatic pollution assessment using skin tissues of mulley (Wallago attu, Bloch & Schneider, 1801) as a bio-indicator in kalpani river at District Mardan, Khyber Pakhtunkhwa Pakistan
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2015, Vol 6, Issue 2
Abstract
Bioaccumulation profile of five heavy metals including lead (Pb), chromium (Cr), cadmium (Cd), Zinc (Zn) and Nickel (Ni) were investigated in the skin tissue of fresh water fish Mulley, Wallago attu, to assess aquatic pollution in Kalpani river at District Mardan, Khyber Pakhtunkhwa Pakistan. Specimens were collected of three different polluted sites of the river during the months of July through October, 2013. The heavy metals concentration was determined by using Perkin Elmer AS 3100 flame atomic absorption spectrophotometer. Pb was not detected in any of the specimens collected from the river while Cd was the highest and Ni was the least accumulated metal for all sampling months and sites. Mean values recorded (wet weight) for Cr, Cd, Zn and Ni were 0.168±0.326 μg g-1, 0.747±1.106 μg g-1, 0.328±0.074 μg g-1 and 0.161±0.156 μg g-1 respectively. The results showed metals bio accumulation in skin of Mulley in order of Cd>Zn>Cr>Ni, with no detection of Pb. For data validation, statistics of Pearson correlation coefficient matrix was calculated (r > 0.5) It was concluded that Cr and Ni were higher than RDA permissible limits and fish skin act as a primary exposed target to aquatic pollutants.
Authors and Affiliations
Iram Alam Sthanadar, Aftab Alam Sthanadar, Benazir Begum, Muhammad Jamal Nasir, Imtiaz Ahmad, Ali Muhammad, Muhammad Zahid, Sana Ullah
Keywords
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