Our Lungs Have A Fatal Flaw

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Our respiratory systems do a great job of protecting us, but they are no match for the smallest pollution particles created by the modern world.

To learn more about this topic, start your googling with these keywords:
– Alveolus: any of the many tiny air sacs of the lungs which allow for rapid gaseous exchange.
– Bronchiole: any of the minute branches into which a bronchus divides.
– PM 2.5: tiny particles or droplets in the air that are two and one half microns or less in width.
– PM 10: inhalable particles, with diameters that are generally 10 micrometers and smaller.
– Nasopharynx: the upper part of the pharynx, connecting with the nasal cavity above the soft palate.

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Cameron Duke | Script Writer, Narrator and Director
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Apple Podcasts|

“Data Review: How Many People Die from Air Pollution?” Our World in Data,

“Fine Particles (PM 2.5) Questions and Answers”

Hiraiwa, Kunihiko, and Stephan F. van Eeden. “Contribution of Lung Macrophages to the Inflammatory Responses Induced by Exposure to Air Pollutants.” Mediators of Inflammation, vol. 2013, 2013, pp. 1–10, 10.1155/2013/619523.

Hofmann, Werner. “Modelling Inhaled Particle Deposition in the Human Lung—a Review.” Journal of Aerosol Science, vol. 42, no. 10, 1 Oct. 2011, pp. 693–724,, 10.1016/j.jaerosci.2011.05.007.

“Particle Deposition – an Overview | ScienceDirect Topics.”,

Schwab, Jan-Alexander, and Matthias Zenkel. “Filtration of Particulates in the Human Nose.” The Laryngoscope, vol. 108, no. 1, Jan. 1998, pp. 120–124, 10.1097/00005537-199801000-00023

US EPA, OAR. “Indoor Particulate Matter.” US EPA, 15 Aug. 2014,

US EPA, OAR. “Particulate Matter (PM2.5) Trends | US EPA.” US EPA, 19 July 2016,

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