What is pollutants give examples?

Pollutants are substances that contaminate the environment and can cause harm to humans, wildlife, and ecosystems. They can be categorized into several types, including chemical pollutants like heavy metals (e.g., lead, Mercury), biological pollutants such as bacteria and viruses, and physical pollutants like plastic waste. Common examples include carbon monoxide from vehicle emissions, pesticides in agricultural runoff, and microplastics in oceans. The presence of these pollutants can lead to health problems, environmental degradation, and loss of biodiversity.