Atmospheric Pollution 3
Test Your Knowledge on Atmospheric Pollution
Welcome to the Atmospheric Pollution Quiz! This quiz consists of 29 carefully curated questions that will challenge your understanding of air pollution, climate change, and related environmental issues.
Take this opportunity to:
- Enhance your knowledge on atmospheric science
- Learn about key concepts like greenhouse gases and pollution dispersion
- Test your skills against peers and see how you measure up!
In what latitudes do the highest stratospheric ozone concentrations occur?
20°
60°
80°
45°
The declared aim of the policy of high stacks was to
Enhance the chminey effect and create higher effective stack heights
Make use of higher wind speeds
Reduce maximum immissions on the ground
Delay deposition
Distribute pollutants over large areas
Global temperature increase over the last 150 years is about
0,2 °C
1,2 °C
0,8 °C
0,4 °C
What process is not part of dispersion of pollutants in air?
Interception
Diffusion
Decay
Deposition
Sedimentation
Clinical studies to determine concentration limits for humans help to
Replace experiments using animals
Study exposures under normal conditions
Understand systematic dose-effect relationships
Study the effects of high exposures
What is characteristic of an Eulerian model?
The limited amount of input data and numerical capacity needed
A coordinate system that is fixed realtive to the earth surface
The good representation of point sources
A grid with increasingly smaller dimensions
What is the dual role of CFCs in the atmosphere?
Enhance chemical reactions and produce stratospheric ozone
Enhance chemical reactions and destroy thropospheric ozone
Contribute to global warming as GHG and deplete ozone
Destroy ozone and contribute to Global Dimming
Inversions can cause high immission concentrations near the ground
When pollutants are emitted below the inversion
Because heating is especially intense in these periods
When pollutants are emitted into the inversion through high stacks
Because pollutants are pressed downward
Sulfates can cover large distances in th atmosphere because
They are released in great heights
They are not easily washed-out
Their lifetime in the atmosphere is long
They are especially light compared to their size
What data re not relevant for emission inventories?
Geographical position of sources
Flue gas temperature
Stack height
Wind speed
Emission rates of different pollutant groups
What human impact does not (yet) exceed the resilience boundaries of the global ecosystems?
Climate change
Biodiversity loss
Acidification of the ocean
Nitrogen cycle
Gaussian models for continuous point sources assume that
Emissions occur at least 10 m above ground
Life time of pollutants is limited
Wind speed exceeds 1 m/s
Pollutant concentration is uniform within the plume
Stratospheric ozone concentration
Is falling in midlatitudes in winter, constant in summer
Is falling worldwide
Is falling in midlatitudes, and strongly falling over Antarctica
Is falling in equatorial regions in winter
What part of the solar spectrum is primarily responsible for the cancer in human skin?
UVA
UVC
Roentgen waves
UVB
Infra-red
Protections regarding climate in the future do not rely on
Assumptions on GHG emissions
An understanding of radiation
Assumptions on the development of the world population
Mathematical models to simulate physical processes in the atmosphere
Statistical extrapolations of the climate change of the past
Air flow is influenced near buildings
But the induced turbulence is irrelevant for dispersion
Up to about 150 m behind the building
The stronger, the smaller the building is
In the vertical within about 2,5 times the height of the building
Which is no Green House Gas (GHG)?
Carbon monoxide
Carbon dioxide
Water vapour
Methane
Ozone
What feedback mechanism is reinforcing (=positive)?
Increase in CO2, increased biomass, increased evaporation, cooling
Temperature decrease, more glaciers, higher Albedo
Temperature increase, increased evaporation, increased cloud cover
Temperature increase, forest fires, increased Albedo
Deposition reaches generally its highest values
Chemical transformation
Occult deposition
Sedimentation
Wet deposition
Emission reductions necessary to meet the 2 °C goal are consistent with
80% reduction in industrialized and unlimited emissions in other nations
50% reduction of GHG emissions in industrialized nations
Full use of conventional and unconventional reserves
About 1t of CO2 per person and year till 2050 in industrialized nations
GHG emissions about three times the amount already emitted
Which is a secondary pollutant?
Aerosols
Sulfur dioxide
Carbon monoxide
Nitrogen oxide
Ozone
Expected temperature increase in Austria in the next 20-50 years is about
2-4°
0,5-1°
4-6°
5-10°
Which is NOT a component of the radiation balance at the earths surface?
Diffuse or sky radiation
Atmospheric radiation
Celestial radiation
Terrestrial radiation
Direct solar radiation
The effective source height
Is defined as the sum of stack height and plume rise
Depends on the emitted pollutants
Is equal to stack height for hot effluents
Is near 40 km for stratospheric ozone
Increases with air temperature
Climate change is scientifically proved by
Increase of global mean temperature
What is the significance of oceans in the global carbon cycle?
A sink, but may become a source
What is not part of geo-engineering?
Substitution of fossil energy sources
Which of the following pollutants are GHGs?
Ozone, carbon dioxide, methane and water vapour are GHGs
Radiation balance is clearly negative
Day time, inversion, rainfall
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