PM meaning in Physics Related ?

Answer:

What is Particulate Matter mean?

Particulates – also known as atmospheric aerosol particles, atmospheric particulate matter, particulate matter (PM), or suspended particulate matter (SPM) – are microscopic particles of solid or liquid matter suspended in the air. The term aerosol commonly refers to the particulate/air mixture, as opposed to the particulate matter alone. Sources of particulate matter can be natural or anthropogenic. They have impacts on climate and precipitation that adversely affect human health, in ways additional to direct inhalation.

Types of atmospheric particles include suspended particulate matter; thoracic and respirable particles; inhalable coarse particles, designated PM10, which are coarse particles with a diameter of 10 micrometers (μm) or less; fine particles, designated PM2.5, with a diameter of 2.5 μm or less; ultrafine particles, with a diameter of 100 nm or less; and soot.

The IARC and WHO designate airborne particulates as a Group 1 carcinogen. Particulates are the most harmful form of air pollution due to their ability to penetrate deep into the lungs, blood streams and brain, causing health problems including heart attacks, respiratory disease, and premature death. In 2013, a study involving 312,944 people in nine European countries revealed that there was no safe level of particulates and that for every increase of 10 μg/m3 in PM10, the lung cancer rate rose 22% (95% CI [1.03–1.45]). The smaller PM2.5 were particularly deadly, with an 18% increase in lung cancer per 5 μg/m3 (95% CI [0.96–1.46]) as it can penetrate deeper into the lungs. Worldwide exposure to PM2.5 contributed to 4.1 million deaths from heart disease and stroke, lung cancer, chronic lung disease, and respiratory infections in 2016. Overall, ambient particulate matter ranks as the sixth leading risk factor for premature death globally.

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Philosophy Methodology	Academic & Science
Dennis J. Picard Medal for Radar Technologies and Applications	Academic & Science
Picometre	Academic & Science
Process Manager	Academic & Science
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Power Meter	Academic & Science
Plumbing Mechanical	Business
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People Motivator	Community
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Place Marker	Community
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Precious Moments	Community
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Pre Midnight	Community
Pianella Mandoline	Community
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Price Milburn	Community
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Patrick Madrid	Community
Pappa Meyer	Community
Practice Management	Community
Phase Modulation	Computer and Networking
Performance Management	Computer and Networking
Processable Mode	Computer and Networking
Peg Material	Computer Hardware
Physical Memory	Computer Hardware
Pocket Message	Computing
Partial Match	Computing
Personal Mainframe	Computing
Private Mail	Computing
Physical Machine	Computing
Pocket Mirror	Computing
Poultry Man	Computing
Product Manual	Computing
Pikon Message	Computing
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Pattern Match	Computing
Protected Mode	Computing
Paper Mario	Computing
Private Messaging	Computing
Power Mac	Computing
Power Management	Computing
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Permanent Magnet	Electronics
Pulse Modulation	Electronics
Prototype Model	Electronics
X Window Pixelmap 8-bit Text Bitmap Graphics	File Type
Presentation Manager Bitmap Graphics File	File Type
Perl	File Type
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President's Medal	Governmental
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Per Metre	Measurement Unit
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Posterior Mitral	Medical
posteromedial	Medical
postmenopausal	Medical
Practice Manager	Medical
premotor	Medical
Psoas Major	Medical
Pterygoid Muscle	Medical
Pulmonary Macrophage	Medical
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pyloromyotomy	Medical
Portable Monitor	Medical
Pubococcygeal Muscle	Medical
Power Meditation	Medical
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Prime Moose	Medical
Progress Monitor	Medical
Pardon My ....	Messaging
Personal Message	Messaging
Private Message	Messaging
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Pm0	Military and Defence
Pm1	Military and Defence
Polic A Militar	Military and Defence
Preventative Maintenance	Military and Defence
Powder Maggots	Military and Defence
Provost Marshal	Military and Defence
Planning Module	Military and Defence
Pulse Modulated	Military and Defence
Personal Media	Networking
Php (php Hypertext Preprocessor) Mime (multipurpose Internet Mail Extensions)	Networking
Palm Mute	Networking
Particle Multiplication	Physics Related
Particulate Material	Physics Related
Particulate Matter	Physics Related
Pere Marquette Railway (CSX Transportation)	Regional
Pere Marquette	Regional
Pattern Matching	Softwares
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