Contaminated sites are areas where harmful substances, such as chemicals or pollutants, have been released into the environment. These contaminants can come from various sources, including industrial activities, waste disposal, or accidents. The presence of these hazardous materials can pose risks to human health and the ecosystem. Cleanup and management of contaminated sites are essential to restore the environment and protect public safety. Agencies like the Environmental Protection Agency (EPA) in the United States often oversee the assessment and remediation processes. Effective strategies may involve removing pollutants, treating contaminated soil or water, and monitoring the site for future safety.