What is the ozone layer What does it do?

What is the ozone layer What does it do?

The ozone layer protects the Earth against most UVB coming from the sun.

What role does the ozone layer play to protect life on Earth?

Most ozone resides in the stratosphere (a layer of the atmosphere between 10 and 40 km above us), where it acts as a shield to protect Earth’s surface from the sun’s harmful ultraviolet radiation. With a weakening of this shield, we would be more susceptible to skin cancer, cataracts and impaired immune systems.

What is ozone layer how it affect the environment?

It is a cause of melanoma and other types of skin cancer. It has also been linked to damage to some materials, crops, and marine organisms. The ozone layer protects the Earth against most UVB coming from the sun.

What does the ozone layer do quizlet?

What is the purpose of the ozone layer? To stop excessive amounts of ultraviolet radiation reaching the Earth’s surface. It absorbs the UV rays to prevent them from reaching the ground.

How does the ozone layer protect us?

The stratospheric ozone layer is Earth’s “sunscreen” – protecting living things from too much ultraviolet radiation from the sun. The emission of ozone depleting substances has been damaging the ozone layer.

Why is the ozone layer so fragile?

Research by Cambridge University shows that it is not increased pollution but a side effect of climate change that is making ozone depletion worse. At high altitudes, 50% of the protective layer had been destroyed.

What are some of the things that the Aura satellite detects?

Aura carries four instruments for studies of atmospheric chemistry: HIRDLS — High Resolution Dynamics Limb Sounder — measures infrared radiation from ozone, water vapor, CFCs, methane and nitrogen compounds.

How long will it take for chlorine levels near the ozone layer to drop to normal levels?

Models suggest that the concentration of chlorine and other ozone-depleting substances in the stratosphere will not return to pre-1980 levels until the middle decades of the 21st century.

Can I replace R22 with R134a?

Using R134a in Systems Designed for R22 For one, the cooling capacity of R134a is only 60 percent that of R22, so the system condenser has to work overtime to produce the same amount of cooling. R134a has a lower thermal conductivity than R22, so an R134a system needs a larger heat exchanger.

What is the replacement for R22?

RS-44b

Can you still get R22 refrigerant?

When the phase-out is complete in 2020, R22 refrigerant will no longer be available. R22 refrigerant, sometimes known as R22 Freon or HCFC-22 Freon, is an environmental danger because it contributes to the depletion of the ozone layer. Availability of R22 will be limited since it cannot be purchased new.

How much is a tank of R22?

Companies have quoted prices ranging from $35 to $175 per pound for R-22.