Study sets matching "stratospheric ozone depletion"
Study sets
Classes
Users
Tropospheric Ozone... - Oxidant that harms…
Stratospheric Ozone... - Critically import…
Formation of Stratospheric Ozone Equati…
Formation of Stratospheric Ozone Equati…
respiratory systems; lung tissue; plants; ground level ozone;…
life; global sunscreen; uvb uvc
O2 + UV-light → 2O
O2 + O → O3
Tropospheric Ozone... - Oxidant that harms…
respiratory systems; lung tissue; plants; ground level ozone;…
Stratospheric Ozone... - Critically import…
life; global sunscreen; uvb uvc
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
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.
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…
Particulate Matter
Haze
Photochemical Oxidants
Volatile Organic Compound
Solid or liquid particles suspended in air; also known as part…
Reduced visibility
A class of air pollutants formed as a result of sunlight actin…
An organic compound that evaporates at typical atmospheric tem…
Particulate Matter
Solid or liquid particles suspended in air; also known as part…
Haze
Reduced visibility
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
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 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
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 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…
Chlorofluorocarbon molecules used in
1985
CFC's banned
ozone hole wont disappear
spray cans and refrigerators, led to depletion of ozone layer…
team of British scientists report ozone substantially thinning…
1992
for another 2-3 decades b/c CFCs have residence time of 100yrs
Chlorofluorocarbon molecules used in
spray cans and refrigerators, led to depletion of ozone layer…
1985
team of British scientists report ozone substantially thinning…
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
primary pollutant
secondary pollutant
VOCs
the introduction of chemicals, particulate matter, or microorg…
A polluting compound that comes directly out of the smokestack…
A primary pollutant that has undergone transformation in the p…
Volatile organic compounds (VOCs) are emitted as gases from ce…
Air pollution
the introduction of chemicals, particulate matter, or microorg…
primary pollutant
A polluting compound that comes directly out of the smokestack…
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
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
air pollution
tropsphere
anthropogenic
big six air pollutants (as of 1970)
introduction of chemicals, particulate matter, or microorganis…
layer of the atmosphere where air pollution primarily occurs (…
human-lead
SOx, NOx, CO, particulates, tropospheric ozone, lead
air pollution
introduction of chemicals, particulate matter, or microorganis…
tropsphere
layer of the atmosphere where air pollution primarily occurs (…
Air Pollution
Particulate Matter (PM)
Haze
Photochemical Oxidant
the introduction of chemicals, particulate matter, or microorg…
solid or liquid particles suspended in air; known as particula…
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; known as particula…
air pollution
criteria air pollutants
particulate matter
photochemical (brown) smog
the introduction of chemicals, particulate matter, or microorg…
Ozone... Particulate Matter... Carbon Monoxide... Nitrogen Oxides... Sulfu…
PM in the atmosphere can either absorb or scatter sunlight, cr…
NOx + VOCs + sunlight = photochemical smog... Found in areas with…
air pollution
the introduction of chemicals, particulate matter, or microorg…
criteria air pollutants
Ozone... Particulate Matter... Carbon Monoxide... Nitrogen Oxides... Sulfu…
homogenous reactions
heterogeneous reactions
polar stratospheric clouds (PSC)
reactive chlorine
reactions between molecules that are in the gaseous phase
reactions that occur on a solid surface (e.g. particles)
formation of a collection of droplets that cause Antarctic hol…
Cl compounds that have the ability to catalyze ozone depletion
homogenous reactions
reactions between molecules that are in the gaseous phase
heterogeneous reactions
reactions that occur on a solid surface (e.g. particles)
Formula for ozone formation
Formula for ozone depletion
Factors of ozone depletion
source sink model
O2 + light = O + O remember light breaks down O2... O + O2 = O3
O3 + O= 2O2 we basically get an oxygen removed form O3 which c…
Cl... Br... Nitric Oxide (NO)... OH
source (O2) ------- stratosphere (O3) ------- sink
Formula for ozone formation
O2 + light = O + O remember light breaks down O2... O + O2 = O3
Formula for ozone depletion
O3 + O= 2O2 we basically get an oxygen removed form O3 which c…
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