Study sets matching "stratospheric ozone depletion"
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ozone layer
Ozone layer provides
distance of ozone layer from earth's su…
2050
first discovered in 1913 by Charles Fabry and Henri Buisson
protection from sun's radiation
12-18 miles above earth's surface
when hole is expected to recover
ozone layer
first discovered in 1913 by Charles Fabry and Henri Buisson
Ozone layer provides
protection from sun's radiation
Atmospheric composition
Layered structure of atmosphere
Troposphere
Lapse rate
78% nitrogen, 21% oxygen, trace amounts of water, argon, CO2
troposphere, stratosphere, mesosphere, thermosphere
layer next to Earth's surface; 75-85% of mass of Earth's air
rate at which temperature declines with increasing altitude in…
Atmospheric composition
78% nitrogen, 21% oxygen, trace amounts of water, argon, CO2
Layered structure of atmosphere
troposphere, stratosphere, mesosphere, thermosphere
Electrostatic Precipitator
Air pollution
Sulfur Dioxide
Nitrogen Oxides
Dirty air enters, particles in combustion exhaust stream pass…
Introduction of chemicals, particulate matter, or microorganis…
SOx -Comes from combustion of fuels that contain sulfur, inclu…
NOx- Comes from combustion in the atmosphere including fossil…
Electrostatic Precipitator
Dirty air enters, particles in combustion exhaust stream pass…
Air pollution
Introduction of chemicals, particulate matter, or microorganis…
Why is stratospheric ozone important?
What is the Dobson unit?
What does the dobson calculation involv…
3mm = ? DU?
Protects troposphere from harmful UV-B and UV-C rays (all < 31…
Measurement of thickness of the ozone layer
ozone is bought down to surface temperature and pressure
300DU
Why is stratospheric ozone important?
Protects troposphere from harmful UV-B and UV-C rays (all < 31…
What is the Dobson unit?
Measurement of thickness of the ozone layer
What is Ozone
How is Ozone formed
Ozone in the stratospere
The UV Radiation
- The amount is small but vital... - Most is created over the equ…
- When rising oxygen reacts under the influence of sunlight... -…
- Ozone is constantly being destroyed and created. this is a n…
UVA- Longer wavelength, relatively harmless... UVB- Medium wavele…
What is Ozone
- The amount is small but vital... - Most is created over the equ…
How is Ozone formed
- When rising oxygen reacts under the influence of sunlight... -…
Stratospheric ozone=
Sun emits rays-
Which UV rays is bad for you?
Formation of stratospheric ozone
Good ozone- absorbs harmful UV rays
UVA, UV-B, and UVC
UV-B can cause cancer and supress immune system
O2 + UVC--> O + O ... then...... O + O2--> O3
Stratospheric ozone=
Good ozone- absorbs harmful UV rays
Sun emits rays-
UVA, UV-B, and UVC
Stratospheric Ozone
radiation
stratosphere
Selective gas
Naturally Occurring atmospheric ozone that is concentrated in…
The process in which energy is emitted as particles or waves.
The part of the Earths atmosphere which extends from the top o…
A gas with the unique property of selective absorption. Exampl…
Stratospheric Ozone
Naturally Occurring atmospheric ozone that is concentrated in…
radiation
The process in which energy is emitted as particles or waves.
UV-A
UV-B/UV-C
Exposure to UV-B
Formation of the Ozone Hole
Low-energy ultraviolet radiation
Shorter, higher-energy ultraviolet radiation.
Increases the risk of skin cancer and cataracts, and suppresse…
Extremely cold weather conditions during the polar winter caus…
UV-A
Low-energy ultraviolet radiation
UV-B/UV-C
Shorter, higher-energy ultraviolet radiation.
absorption coefficient
dose rate
action spectrum
erythemal action spectrum
measure of how strongly a molecule absorbs electromagnetic rad…
number of UV photons per unit time that lead to a specific bio…
relative efficiency with which UV photons at different wavelen…
chart that describes the appearance of sunburn in humans
absorption coefficient
measure of how strongly a molecule absorbs electromagnetic rad…
dose rate
number of UV photons per unit time that lead to a specific bio…
air pollution
clean air act of 1970
sulfur dioxide, nitrogen oxides, carbon…
inputs
introduction of chemicals particulate matter, or microorganism…
defined six criteria pollutants, EPA specifies allowable conce…
major air pollutants
sources of air pollution
air pollution
introduction of chemicals particulate matter, or microorganism…
clean air act of 1970
defined six criteria pollutants, EPA specifies allowable conce…
six miles, ninety percent, ten percent
thirty miles, ten percent, ninety perce…
UVC (ultraviolet radiation) , does not…
Ammonia and sulfur dioxide
troposphere depth, air molecule percentage, ozone percentage
stratosphere depth, air molecule percentage, ozone percentage…
Shortest wavelengths... Most energy intense and dangerous... Complet…
first used as coolants by refrigeration industry:... Leakage of t…
six miles, ninety percent, ten percent
troposphere depth, air molecule percentage, ozone percentage
thirty miles, ten percent, ninety perce…
stratosphere depth, air molecule percentage, ozone percentage…
Air polution
Ground level pollution
Tropospheric ozone
Haze
Air pollution is a mixture of solid particles and gases in the…
Ground-level ozone is a colorless and highly irritating gas th…
Ozone is a constituent of the troposphere. The troposphere ext…
A slight obscuration of the lower atmosphere, typically caused…
Air polution
Air pollution is a mixture of solid particles and gases in the…
Ground level pollution
Ground-level ozone is a colorless and highly irritating gas th…
air pollution
particulate matter (PM)
haze
photochemical oxidant
introduction of chemicals, particulate matter, or microorganis…
solid or liquid particles suspended in air
reduced visibility
class of air pollutants formed as a result of sunlight acting…
air pollution
introduction of chemicals, particulate matter, or microorganis…
particulate matter (PM)
solid or liquid particles suspended in air
Air pollution
Particulate matter (PM)
Particulates
Particles
The introduction of chemicals, particulate matter or microorga…
Solid or liquid particles suspended in air. Also known as Part…
Solid or liquid particles suspended in air. Also known as Part…
Solid or liquid particles suspended in air. Also known as Part…
Air pollution
The introduction of chemicals, particulate matter or microorga…
Particulate matter (PM)
Solid or liquid particles suspended in air. Also known as Part…
Air Pollution
Sulfur Dioxide
Nitrogen Oxides
Carbon Monoxide
introduction of chemicals, particulate matter, or microorganis…
SO₂; Combustion of fuels that contain sulfur, including coal,…
NOᵪ; all combustion in the atmosphere including fossil fuel co…
CO; Incomplete combustion of any knd; malfunctioning exhaust s…
Air Pollution
introduction of chemicals, particulate matter, or microorganis…
Sulfur Dioxide
SO₂; Combustion of fuels that contain sulfur, including coal,…
Air pollution
Particulates
Photochemical oxidants
Smog
The introduction of chemicals, particulate matter, or microorg…
Solid or liquid particles suspended in air
A class of air pollutants formed as a result of sunlight actin…
A word derived by combining the words smoke and fog
Air pollution
The introduction of chemicals, particulate matter, or microorg…
Particulates
Solid or liquid particles suspended in air
Air polution
Ground level pollution
Tropospheric ozone
Haze
Air pollution is a mixture of solid particles and gases in the…
Ground-level ozone is a colorless and highly irritating gas th…
Ozone is a constituent of the troposphere. The troposphere ext…
A slight obscuration of the lower atmosphere, typically caused…
Air polution
Air pollution is a mixture of solid particles and gases in the…
Ground level pollution
Ground-level ozone is a colorless and highly irritating gas th…
Air polution
Ground level pollution
Tropospheric ozone
Haze
Air pollution is a mixture of solid particles and gases in the…
Ground-level ozone is a colorless and highly irritating gas th…
Ozone is a constituent of the troposphere. The troposphere ext…
A slight obscuration of the lower atmosphere, typically caused…
Air polution
Air pollution is a mixture of solid particles and gases in the…
Ground level pollution
Ground-level ozone is a colorless and highly irritating gas th…
Air Pollution
Particulate matter
Haze
Ozone
The introduction of chemicals, particulate matter, or microorg…
Solid or liquid particles suspended in air
Reduced visibility
A secondary pollutant made up of three oxygen atoms bound toge…
Air Pollution
The introduction of chemicals, particulate matter, or microorg…
Particulate matter
Solid or liquid particles suspended in air
Electrostatic Precipitator
Air pollution
Sulfur Dioxide
Nitrogen Oxides
Dirty air enters, particles in combustion exhaust stream pass…
Introduction of chemicals, particulate matter, or microorganis…
SOx -Comes from combustion of fuels that contain sulfur, inclu…
NOx- Comes from combustion in the atmosphere including fossil…
Electrostatic Precipitator
Dirty air enters, particles in combustion exhaust stream pass…
Air pollution
Introduction of chemicals, particulate matter, or microorganis…
Air pollution
Particulate matter (PM)
Particulates/Particles
Haze
Chemicals, particulate matter, or microorganisms enter the atm…
Particulates or particles
Solid or liquid particles in the air... Ex. Comes from black smoke
Reduced visibility when the particulate matter of air pollutio…
Air pollution
Chemicals, particulate matter, or microorganisms enter the atm…
Particulate matter (PM)
Particulates or particles
What is air pollution
How does a primary pollutant differ fro…
How does ozone form and degrade natural…
How does photochemical smog form?
The introduction of chemicals, particulate matter, or microorg…
Primary pollutants come directly from an emission source, wher…
NO2 -> NO + O -> O + O2 -> O3
NO2 + VOCs -> O3 + Photochemical Oxidants -> Photochemical smog
What is air pollution
The introduction of chemicals, particulate matter, or microorg…
How does a primary pollutant differ fro…
Primary pollutants come directly from an emission source, wher…
Electrostatic Precipitator
Air pollution
Sulfur Dioxide
Nitrogen Oxides
Dirty air enters, particles in combustion exhaust stream pass…
Introduction of chemicals, particulate matter, or microorganis…
SOx -Comes from combustion of fuels that contain sulfur, inclu…
NOx- Comes from combustion in the atmosphere including fossil…
Electrostatic Precipitator
Dirty air enters, particles in combustion exhaust stream pass…
Air pollution
Introduction of chemicals, particulate matter, or microorganis…
Air pollution
Particulate matter (PM)
Haze
Photochemical oxidant
The introduction of chemicals, particulate matter, or microorg…
Solid or liquid particles suspended in air
Reduced visibility
A class of air pollutants formed as a result of sunlight actin…
Air pollution
The introduction of chemicals, particulate matter, or microorg…
Particulate matter (PM)
Solid or liquid particles suspended in air