Metal contamination research focuses on studying the presence and effects of heavy metals in the environment, particularly in soil, water, and food sources. Heavy metals such as lead, mercury, cadmium, and arsenic are known for their toxicity and ability to accumulate in organisms, posing health risks to humans and wildlife. Researchers in this field investigate the sources of metal contamination, methods of detection and analysis, as well as the impacts on ecosystems and human health. They also develop strategies for remediation and pollution control to reduce metal contamination and protect public health and the environment.