View source for Particulate

'''Particulates''' are very tiny pieces of a [[solid]] or [[liquid]] that are carried floating in a [[gas]].  When the tiny pieces are solid, it is called a [[smoke]].  When the tiny pieces are liquid, it is called an [[aerosol]]. Aerosols can be naturally found in [[clouds]] and [[geysers]]. There are also artificial aerosols such as [[haze]] and some [[air pollutants]]. Smokes can be found naturally in [[wildfires]] and [[volcanoes]]. Artificially, they can be found in [[cigarettes]], [[factories]] and [[power plants]]. Both of them can cause [[air pollution]] and [[climate change]]. It is the job of a [[air filter]] to remove them.

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== Particulate Media ==
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File:PM and a human hair.jpg|PM{{sub|2.5}} and PM{{sub|10}} compared with a [[human hair]] in a graphic from the [[United States Environmental Protection Agency|Environmental Protection Agency]]

File:Airborne-particulate-size-chart.svg|Airborne particles are commonly either biological contaminants, particulate contaminants, gaseous contaminants, or dust. This diagram shows the size distribution in micrometres (µm) of various types of airborne particles.

File:Dust emission when using electrical power tools.webm|Particulate emission when using modern electrical [[power tool]] during home broadband installation, Tai Po, Hong Kong

File:Warsaw_Excavator_006.jpg|[[Excavator]] (a type of heavy equipment commonly used at construction sites and roadworks) demolishing the remnants of the pre-war Postal Train 0880Station (Dworzec Pocztowy) at Jerozolimskie Avenue, Poland

File:GEOS Aerosols (SVS5572 - AnnotationsLabel 9600x3240 30p).webm|GEOS portrait of global aerosols, August 1-September 14, 2024.*{{legend striped|red|orange|Black carbon/Fires (orange/red)}}*{{legend striped|#722|#b52|Mineral dust (pink/magenta)}}*{{legend|#48b|Sea salt (blue)}}*{{legend|green|Sulfates (green)}}

File:Hovering on the Horizon - NASA Earth Observatory.jpg|Horizon and layers of the atmosphere as seen from NASA Earth Observatory: troposphere (darkest), tropopause (brown), stratosphere (gray), mesosphere, thermosphere, and exosphere (blues). Colors are due to the dominant gases and particles in each layer.

File:MODAL2 M AER RA.webm|False-color map based on data from the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Terra satellite. The percentage of small particles is displayed by color, from green (few small particles) to red (many small particles). Gray: the sensor did not collect data.

File:MODAL2 M AER OD.webm|Average monthly aerosol amounts around the world, observations from the [[Moderate Resolution Imaging Spectroradiometer]] (MODIS) on NASA's Terra satellite.

File:Display VSON WP6910 (air detector) -Location 45.44234 10.96862 Verona (Borgo Milano) Italy, strong burnt smell -pm2,5 OUTdoor particulate pollution, polveri sottili, smog (smoke heating systems???) -2020 04 02 (hour20 15).webm|Italian city polluted by particulates and optic air detector (laser)

File:Display VSON WP6910 (air detector) - pm2,5 at Verona (Borgo Milano) Italy - (particulate pollution, polveri sottili) - 2020 01 15 (hour 22.35) OUTdoor & INdoor (HEPA H13) - first publication commons.wikimedia.org.webm|[[Dust collector|Fabric filters]] [[Hepa]] effect: without (outdoor) and with filter (indoor)
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[[Category:Materials]]
[[Category:HVAC]]