1. Ambient (outdoor) air pollution. Who.int. Accessed November 7, 2023. https://www.who.int/news-room/fact-sheets/detail/ambient-(outdoor)-air-quality-and-health.
2. Household air pollution. Who.int. Accessed November 7, 2023. https://www.who.int/news-room/fact-sheets/detail/household-air-pollution-and-health.
3. Home. Stateofglobalair.org. Accessed November 7, 2023. https://www.stateofglobalair.org/.
4. Air pollution. Who.int. Accessed November 7, 2023. https://www.who.int/health-topics/air-pollution.
5. Types of pollutants. Who.int. Accessed November 7, 2023. https://www.who.int/teams/environment-climate-change-and-health/air-quality-and-health/health-impacts/types-of-pollutants.