1. Air pollution: This type of pollution occurs when harmful substances such as gases, particulate matter, and chemicals are released into the atmosphere. Sources of air pollution include vehicle emissions, industrial activities, and burning of fossil fuels. Air pollution can have serious health effects on humans, animals, and plants, and can also contribute to climate change.
2. Water pollution: Water pollution occurs when contaminants such as chemicals, sewage, and waste products are discharged into bodies of water such as rivers, lakes, and oceans. Sources of water pollution include industrial discharges, agricultural runoff, and improper disposal of waste. Water pollution can harm aquatic ecosystems, affect drinking water quality, and pose health risks to humans and wildlife.
3. Land pollution: Land pollution refers to the degradation of land resources due to the accumulation of waste, chemicals, and other pollutants. Sources of land pollution include improper disposal of solid waste, industrial activities, and use of pesticides and fertilizers in agriculture. Land pollution can have negative impacts on soil quality, biodiversity, and human health, and can also lead to the contamination of groundwater and surface water.