File:Particulate matter.jpg: Difference between revisions
(==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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== Summary == | == Summary == | ||
==Air Pollution - Particulae Matter== | ==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 | PM10 : inhalable particles, with diameters that are generally 10 micrometers and smaller; and | ||
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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. | 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. | ||
{{Environmental}} | |||
===Reference=== | ===Reference=== | ||
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{{Footer}} | {{Footer}} | ||
[[Category:Environmental]] |
Revision as of 11:08, 5 March 2019
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.
Reference
EPA USA https://www.epa.gov/pm-pollution/particulate-matter-pm-basics
Cite this page: Hill, M.A. (2024, May 1) Embryology Particulate matter.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Particulate_matter.jpg
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
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