File:Particulate matter.jpg: Difference between revisions
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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, | Most {{air pollution}} particles form in the atmosphere as a result of complex reactions of chemicals, such as sulphur dioxide and nitrogen oxides, that 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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EPA USA | EPA USA | ||
https://www.epa.gov/pm-pollution/particulate-matter-pm-basics | https://www.epa.gov/pm-pollution/particulate-matter-pm-basics | ||
====Copyright==== | |||
United States government creative works, including writing, images, and computer code, are usually prepared by officers or employees of the United States government as part of their official duties. A government work is generally not subject to copyright in the United States and there is generally no copyright restriction on reproduction, derivative works, distribution, performance, or display of a government work. Unless the work falls under an exception, anyone may, without restriction under U.S. copyright laws: Reproduce the work in print or digital form, Create derivative works, Perform the work publicly, Display the work, Distribute copies or digitally transfer the work to the public by sale or other transfer of ownership, or by rental, lease, or lending. https://www.usa.gov/government-works | |||
{{Footer}} | {{Footer}} | ||
[[Category:Environment]] | [[Category:Environment]] | ||
Latest revision as of 11:27, 5 March 2019
Summary
Air Pollution - Particulae Matter
Most air pollution particles form in the atmosphere as a result of complex reactions of chemicals, such as sulphur dioxide and nitrogen oxides, that 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.
(text modified from EPA page)
Reference
EPA USA https://www.epa.gov/pm-pollution/particulate-matter-pm-basics
Copyright
United States government creative works, including writing, images, and computer code, are usually prepared by officers or employees of the United States government as part of their official duties. A government work is generally not subject to copyright in the United States and there is generally no copyright restriction on reproduction, derivative works, distribution, performance, or display of a government work. Unless the work falls under an exception, anyone may, without restriction under U.S. copyright laws: Reproduce the work in print or digital form, Create derivative works, Perform the work publicly, Display the work, Distribute copies or digitally transfer the work to the public by sale or other transfer of ownership, or by rental, lease, or lending. https://www.usa.gov/government-works
Cite this page: Hill, M.A. (2024, April 19) 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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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 11:06, 5 March 2019 |  | 1,950 × 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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