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aerosols

What Is an Aerosol?
Image: iStockphoto.com/joebelanger

What Is an Aerosol?

Aerosols are solid particles or liquid droplets that are suspended in air or some other gas. Aerosols occur naturally (from a volcanic eruption) or are human made (burning coal for energy).

Aerosols are often grouped into “good” and “bad” categories, depending on whether they are beneficial or harmful to the environment and health.

Washington University
Red Sunset, Green Flash

Red Sunset, Green Flash

Ever wonder why sunsets are red? Aerosols play a big part in scattering shorter wavelengths of light, leaving the red for us to see. Although rare, it’s possible to see a green flash before the Sun disappears. More...

Article
HyperPhysics
Atmospheric Aerosols: What Are They and Why Are They So Important?

Atmospheric Aerosols: What Are They and Why Are They So Important?

Discover different kinds of aerosols — natural and human made — and where they originate. Why are they so important to NASA? More...

Article
NASA
Climate Change Analyst

Climate Change Analyst

Are you passionate about safeguarding the environment and wish more people felt that way? Consider a career as a climate change analyst. Find out what they do and what you can do to become one. More...

Profile
Science Buddies
Dust Dominates Foreign Aerosol Imports to North America

Dust Dominates Foreign Aerosol Imports to North America

Some 64 tons of atmospheric particles arrive over North America every year. Where does it all come from and what is it made of? Find out here. More...

Video
NASA
How Do Scientists Study Aerosols?

How Do Scientists Study Aerosols?

How do scientists study aerosols — fine solid particles or liquid droplets suspended in a gas — in the atmosphere? Discover their 3 main options. More...

Video
CIRES
Ozone Depletion

Ozone Depletion

Are aerosols in the air breaking down the ozone layer? Here’s a project idea that you can run with for a science fair. More...

Activity
Science Buddies
Aerosol Science and Engineering

Aerosol Science and Engineering

Nine interactive and animated modules let you explore the science and engineering aspects of aerosols. Investigate the effects of aerosols on health and climate. More...

Interactive
University of Florida
Temperature and Atmospheric Aerosol Abundance

Temperature and Atmospheric Aerosol Abundance

What is the connection between warming temperatures and the amount of aerosols in the atmosphere? Find out what the research says in relation to gases released by plants. More...

Article
Phys.org
Waste Disposal: Turning Garbage into Gas

Waste Disposal: Turning Garbage into Gas

Could atomization be the answer to some waste disposal problems, especially if a by-product is gas that can be used for energy? Some scientists think so. More...

Article
The Economist

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