First generic of symbicort receives FDA approval

The U.S. Food and Drug Administration approved the first generic of Symbicort (budesonide and formoterol fumarate dihydrate) Inhalation Aerosol to treat asthma in patients 6 years and older and for maintenance treatment in ...

Medical research

Study demonstrates active SARS-CoV-2 in air

A recent study published in Indoor Air by Antonio Rothfuchs et al, is the first to demonstrate active SARS-CoV-2 in air. Infectious SARS-CoV-2 was recovered from the air in rooms occupied by COVID-19 patients. This result ...

Diseases, Conditions, Syndromes

Disinfecting COVID-19 with a plasma filter

A research team led by Dr. Seunghun Lee of the Department of Nano-Bio Convergence at the Korea Institute of Materials Science (KIMS) developed a plasma air conditioning technology that can inactivate the SARS-CoV-2 in real ...

Diseases, Conditions, Syndromes

Can SARS-CoV-2 be detected in a few exhalations?

In a study published by Wiley in Influenza and Other Respiratory Viruses, investigators could detect SARS-CoV-2 in the exhaled breaths and coughs of individuals with COVID-19.

Diseases, Conditions, Syndromes

COVID: How the disease moves through the air

Masks have been a common sight all over the world since SARS-CoV-2, the novel coronavirus, invaded our lives. We set out to investigate if they work. Our goal was to find out how the virus travels through the air in buildings ...

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Technically, an aerosol is a suspension of fine solid particles or liquid droplets in a gas. Examples are clouds, and air pollution such as smog and smoke. In general conversation, aerosol usually refers to an aerosol spray can or the output of such a can. The word aerosol derives from the fact that matter "floating" in air is a suspension (a mixture in which solid or liquid or combined solid–liquid particles are suspended in a fluid). To differentiate suspensions from true solutions, the term sol evolved—originally meant to cover dispersions of tiny (sub-microscopic) particles in a liquid. With studies of dispersions in air, the term aerosol evolved and now embraces both liquid droplets, solid particles, and combinations of these. The Earth atmosphere contains aerosols of various types and concentrations, including quantities of:

By far the most common aerosols in the atmosphere are clouds, which normally consist of suspensions of water droplets or ice particles of greater or lesser density.

Aerosols can be found in urban Ecosystems in various forms, for example:

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