ABSTRACT

Neota Dam, a historic water reservoir in Jaipur, Rajasthan, constructed in 1867, faces increasing environmental stress due to heavy metal pollution from nearby urban and industrial activities. This research paper investigates the bioaccumulation of heavy metals (such as lead, cadmium, copper, zinc, and chromium) in the aquatic biota of Neota Dam, focusing on fish, macroinvertebrates, and zooplankton. The study assesses metal concentrations in water and biota, evaluates bioaccumulation factors (BAF), and explores potential ecological and human health risks. Results indicate significant bioaccumulation of metals, particularly in fish liver and gills, with lead and cadmium exceeding permissible limits in certain species. The findings highlight the urgent need for pollution control measures to protect the dam’s biodiversity and its role as a water resource for local communities. Keywords: Contamination, Aquatic ecosystem, Heavy metals, Bioaccumulation
Publication date: 01/06/2026

https://www.ijbpas.com/pdf/2026/June/MS_IJBPAS_2026_10276.pdf

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https://doi.org/10.31032/IJBPAS/2026/15.6.10276