Air Pollution and Its Impact

What is air pollution?

• Contamination of air with chemical, physical, or biological agents.

• The presence of excessive carbon dioxide in the atmosphere.

• Any visible smoke released from factories.

• A natural phenomenon caused by volcanic eruptions.

Which of the following is a human (anthropogenic) source of outdoor air pollution?

• Pollen

• Bushfires

• Dust from deserts

• Burning fossil fuels

What was the estimated number of deaths worldwide in 2012 attributed to outdoor air pollution?

• 1.5 million

• 2.0 million

• 3.7 million

• 5.0 million

Which action is primarily associated with individuals to reduce air pollution?

• Developing air quality standards.

• Reducing emissions from factories.

• Using clean energy sources like wind turbines.

• Reducing reliance on fossil fuels through walking or public transport.

What is the most common source of indoor air pollution globally, leading to high particulate matter concentrations?

• Tobacco smoke

• Chemicals from building materials

• Solid fuels used for cooking and heating

• Pesticides