Pollutants are substances or materials that introduce contaminants into the environment, causing harm or discomfort to living organisms and disrupting the natural functioning of ecosystems. These pollutants can manifest in various forms, including chemicals, particulate matter, noise, heat, or light. Common examples include toxic chemicals, heavy metals, pesticides, sewage, and greenhouse gases. The impact of pollutants can range from short-term health problems to long-term environmental damage.

Classification

Pollutants can be classified based on their origin, chemical composition, and the potential harm they pose to the environment and human health. Here are some common classifications of pollutants:

1.Air Pollutants: These are gases and particles released into the air from various sources, such as factories, transportation, and natural processes. Examples include carbon monoxide, sulphur dioxide, and particulate matter.

2.Water Pollutants: These substances contaminate water bodies such as rivers, lakes, and oceans. Examples include chemicals, sewage, and agricultural runoff.

3.Soil Pollutants: These substances contaminate the soil, such as chemicals from industrial processes, heavy metals, and pesticides.

4.Noise Pollutants: These refer to excessive or unwanted sounds that can harm human health and wildlife.

5.Light Pollutants: These refer to artificial light that interferes with natural light cycles and disrupts ecosystems.