Vol. 9, Issue 11, Part A (2025)

Pollutant emissions into ecosystems have grown because of industrial development. Heavy metals are among the most prevalent contaminants. This study examines the potential of metal contamination on human health by eating oil sardine fish off the coast of Mangaluru. The purpose of this study was to measure the levels of Iron, Nickel, Copper, Zinc, Lead, Cadmium, Mercury and Arsenic in the kidney, liver, muscle, and gill tissues of Sardinella longiceps from the Mangaluru shore. A flame atomic absorption spectrophotometer was used to analyses each sample, and the findings were reported as μg g⁻¹ dry weight. With a few exceptions, the liver has substantially greater metal concentrations than other tissues. Fe > Zn > Cu > Ni > As > Pb > Cd > Hg was the order of metal accumulation concentrations in oil sardine tissues. This species' estimated daily intake (EDI) of heavy metals was less than its tolerated daily intake (TDI). Additionally, the average target hazard quotient (THQ) for the metals under study was less than 1, indicating that eating these fish may be safe for human health along the Mangaluru coast.