Journal of Environmental Biology

Spatial distribution of heavy metals in water, soil and anurans' livers from Al-Hayr area - Riyadh, Saudi Arabia

K. A. Hasayen*, B. H. Al-Osaimi, A. M. Aljohany and H. M. Al-Jawdah

Department of Zoology, College of Science, King Saud University, Riyadh-11451, Saudi Arabia

*Corresponding Author E-mail: khasayen@ksu.edu.sa

 Key words

Anurans,?

Heavy metal pollution,

Relative accumulation indices,

Saudi Arabia,

Spacial distribution

Publication Data

Paper received : 23.03.2016

Revised received : 26.06.2016

Re-revised received : 02.11.2016

Accepted : 09.11.2016

Abstract

Aim: There is increasing ecological and global health concern associated with environmental contamination by heavy metals. The main objective of the study was to analyze the spatial distribution of heavy metals in soil, water and anurans (frogs and toads) from four sites in Al-Hayr, Riyadh city.

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Methodology: Seven heavy metals (Cu, Cr, Cd, Ni, Zn, Pb and Mn) were estimated to determine the concentration levels in soil, water and anuran liver tissues obtained from Al-Hayr region and arranged in descending order. Relative accumulation indices (RAI) were used to determine the bio-accumulation rate in anuran liver tissues.

Results: Soil and water results showed that no values appeared to be unusual, while two types of anurans (frogs and toads) were found having same RAI distribution and showed the same descending order. All values were statistically insignificant.

Interpretation: The perusal of data revealed that Al-Hayr was considered a non-polluted area.

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