Assessment of Some Heavy Metal Concentrations in Raw Cow’s Milk Collected from Dairy Farms in Dire Dawa City

Abstract

Cow milk is a vital dietary product consumed globally due to its rich nutrient content. However, heavy metals present in cow milk can pose significant health risks to humans and animals alike. This study aimed to assess the concentrations of heavy metals, including Chromium (Cr), Nickel (Ni), Copper (Cu), Zinc (Zn), Cadmium (Cd), Iron (Fe), and Lead (Pb), in raw cow's milk from dairy farms in Dire Dawa City, Ethiopia. Milk samples were analyzed using Flame Atomic Absorption Spectrophotometer (FAAS), and statistical analysis was conducted using SAS software. The results were subjected to one-way ANOVA with Duncan’s multiple range test to compare concentrations across different dairy farms. Findings showed that Fe, Cd, and Zn concentrations were 2.392 mg/L, 0.087 mg/L, and 0.32 mg/L, respectively, with most values within internationally accepted limits. The results underscore the importance of monitoring heavy metals in dairy products for public health safety.