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Assessment of Heavy Metals in Water and Sediments of Chikkere, Sira: Impacts on Aquatic Biodiversity

Year: 2025

Type: article

Abstract: A comprehensive study on heavy metal contamination in the water and sediments of the Chikkere water body was conducted. WAWQI revealed that water quality was poor in April and very poor in August 2021, indicating significant pollution. Samples were analyzed using acid digestion and spectrophotometry. In April 2021, Si, Cu, Mn, and Zn exceeded the acceptable limits set by BIS standards, whereas in August 2021, these metals were within permissible limits. Sediment analysis showed the highest concentration of Fe. Statistically Pb and As correlated with Cu, Mn, and cladocera. Cr, Fe, and Co correlated with Zn (<0.05) and were negatively correlated with rotifers, cladocerans, and copepods. Protozoa correlated with Si, rotifers, and copepods (<0.01). Rotifers showed a positive correlation with cladocerans and copepods (<0.01) but a negative correlation with Zn, Cr, Fe, and Co. These findings underscore the impact of heavy metal contamination on water quality and aquatic biodiversity.

Source: Asian Journal of Environment & Ecology

DOI: 10.9734/ajee/2025/v24i9796

Authors: Sathisha Gouda, Chitra Jayapalan, Shashikanth Majagi

Institutions: Government of Karnataka, Zoological Survey of India, Sri Krishnadevaraya University, Vijayanagara Sri Krishnadevaraya University

Language: English

Topic: Heavy metals in environment

Subfield: Pollution

Field: Environmental Science

Domain: Physical Sciences

SDG: Clean water and sanitation

Open Access status: diamond

OpenAlex ID: W4414472679

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