Pollutants are harmful substances that contaminate the environment, making it unsafe for living beings. They can come from various sources, such as factories, vehicles, and even household products. Common types of pollutants include smoke, chemicals, and waste, which can affect air, water, and soil quality. When pollutants enter our surroundings, they can cause serious health problems for humans, animals, and plants. For example, air pollution can lead to respiratory issues, while water pollution can harm aquatic life. Reducing pollutants is essential for a healthier planet and a better quality of life for everyone.