Human activities that contribute to air pollution include:
- Burning fossil fuels: Coal, oil, and natural gas release pollutants like sulfur dioxide, nitrogen oxides, particulate matter, and carbon monoxide when burned.
- Industrial processes: Manufacturing, mining, and other industrial activities release various pollutants, including volatile organic compounds (VOCs), heavy metals, and toxic chemicals.
- Transportation: Cars, trucks, and airplanes emit exhaust gases that contain pollutants like nitrogen oxides, particulate matter, and carbon monoxide.
- Residential heating and cooking: Burning wood, kerosene, or natural gas for heating or cooking can release pollutants like particulate matter, carbon monoxide, and nitrogen oxides.
- Agriculture: Agricultural activities, such as livestock farming and fertilizer application, can release pollutants like ammonia, nitrogen oxides, and particulate matter.
- Waste disposal: Landfills, incinerators, and other waste disposal methods can release pollutants like methane, dioxins, and hydrogen sulfide.
- Deforestation and land-use changes: Cutting down forests and converting land for other uses can reduce the Earth's ability to absorb carbon dioxide and release other pollutants into the atmosphere.