Hazardous pollutants are toxic substances that pose significant risks to human health and the environment. These pollutants can originate from various sources, including industrial processes, waste disposal, vehicle emissions, and agricultural practices. Common examples include heavy metals (like lead and mercury), volatile organic compounds (VOCs), persistent organic pollutants (POPs), and certain chemicals like benzene and dioxins. Hazardous pollutants can lead to air and water contamination, adversely affecting ecosystems, wildlife, and human health, often requiring stringent regulation and management to mitigate their impact.