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Summary

Air Pollution - Particulae Matter

Most particles form in the atmosphere as a result of complex reactions of chemicals such as sulphur dioxide and nitrogen oxides, which are pollutants emitted from power plants, industries and automobiles.

PM10 : inhalable particles, with diameters that are generally 10 micrometers and smaller; and

PM2.5 : fine inhalable particles, with diameters that are generally 2.5 micrometers and smaller.

How small is 2.5 micrometers? Think about a single hair from your head. The average human hair is about 70 micrometers in diameter – making it 30 times larger than the largest fine particle.


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Reference

EPA USA https://www.epa.gov/pm-pollution/particulate-matter-pm-basics


Cite this page: Hill, M.A. (2024, March 29) Embryology Particulate matter.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Particulate_matter.jpg

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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current12:06, 5 March 2019Thumbnail for version as of 12:06, 5 March 20191,950 × 1,361 (1.24 MB)Z8600021 (talk | contribs)==Air Pollution - Particulae Matter== PM10 : inhalable particles, with diameters that are generally 10 micrometers and smaller; and PM2.5 : fine inhalable particles, with diameters that are generally 2.5 micrometers and smaller. How small is 2.5 mic...

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