Industrialization in Kano State has accelerated economic growth but introduced significant environmental challenges. This study investigates pollution from metallurgical industries and its impact on air, water, and soil quality. Using quantitative data from environmental monitoring reports and peer-reviewed studies, we compare measured pollutant levels against WHO, NESREA, and FAO standards. Results reveal elevated concentrations of PM₁₀, SO₂, NOₓ, and heavy metals such as Pb, Cd, and Cr in industrial zones including Challawa, Sharada, Bompai, and Salanta. These exceedances pose risks to public health, agriculture, and aquatic ecosystems. The study identifies contamination hotspots and recommends policy interventions including effluent treatment enforcement, air quality monitoring, soil remediation, and community education. Limitations include reliance on secondary data and lack of continuous monitoring infrastructure. This assessment provides a foundation for sustainable environmental management in Kano’s industrial landscape.