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AIR POLLUTION
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Questions in this quiz (31)
1Which of the following does not heat up faster than global average CC?
- AThe continents
- BThe Arctic
- CThe Alpine region
- DThe oceans
2In what latitudes do the highest stratospheric ozone concentrations occure?
- A20°
- B60°
- C80°
- D45°
3The declared aim of the policy of high stacks was to
- AEnhance the chimney effect and create higher effective stack heights
- BMake use of higher windspeeds
- CReduce maximum immissions on the ground
- DDelay deposition
- EDistribute pollutants over larger areas
4What was the original definition of Smog?
- AHigh concentrations of photochemicals
- BA combination of smoke and fog
- CCigarette smoke
5Global temperature increase over the last 150 years is about
- A0,2°C
- B1,2°C
- C0,8°C
- D0,4°C
6What process is not part of dispersion of pollutants in air?
- AInterception
- BDiffusion
- CDecay
- DDeposition
- ESedimentation
7Clinical studies to determine concentration limits for humans help to
- AReplace experiments using animals
- BStudy exposures under normal conditions
- CUnderstand systematic dose-effect relationships
- DStudy the effects of high exposures
8For the development of the ozone hole in the Antarctic the following are decisive:
- AHigh CFC concentrations and temperatures below zero
- BHigh CFC concentrations and climate change
- CTemperatures below -80°C and little air mass exchange
- DHigh CFC concentrations and lack of solar radiation
9What is characteristic of an Eulerian model?
- AThe limited amount of inputdata and numerical capacity needed
- BA coordinate system that is fixed relative to the earth surface
- CThe good representation of point sources
- DA grid with increasingly smaller dimensions
10Climate Change does not involve
- AMelting of polar ice
- BChanges in precipitation
- CFrequency of extreme events
- DTemperature changes
- EMore intense earthquakes
11What is the dual role of CFCs in the atmosphere?
- AEnhance chemical reactions and produce stratospheric ozone
- BEnhance chemical reactions and destroy tropospheric ozone
- CContribute to global warming as GHG and deplete ozone
- DDestroy ozone and contribute to Global Dimming
12Inversions can cause high immission concentrations near the ground
- AWhen pollutants are emitted below the inversion
- BBecause heating is especially intense in these periods
- CWhen pollutants are emitted into the inversion through high stacks
- DBecause pollutants are pressed downward
13Sulfates can cover large distances in the atmosphere because
- AThey are released in great heights
- BThey are not easily washed-out
- CTheir life time in the atmosphere is long
- DThey are especially light compared to their size
14What data are not relevant for emission inventories?
- AGeographical position of sources
- BFlue gas temperature
- CStack height
- DWindspeed
- EEmission rates of different pollutant groups
15Occult deposition is
- ADeposition pollutants attached to aerosols
- BDeposition by fog, dew, etc.
- CAn as yet undiscovered deposition
- DDeposition that is not yet fully understood
16What human impact does not (yet) exceed the resilience boundaries of the global
ecosystems?- AClimate change
- BBiodiversity loss
- CAcidification of the ocean
- DNitrogen cycle
17Under clear sky conditions in summer ozone levels are especially high in Vienna
- AIn the early morning
- BOn Saturdays
- COn Sundays and holidays
- DOn weekdays
- EDuring traffic peaks
18Trajectories are an important part of which kind of dispersion models?
- ADiffusions models
- BEulerian models
- CGaussian models
- DLangrangian models
- ERichardson models
19Gaussian models for continuous point sources assume that
- AEmissions occur at least 10 m above ground
- BLife time of pollutants is limited
- CWindspeed exceeds 1 m/s
- DPollutant concentration is uniform within the plume
20The trend of the stratospheric ozone concentration
- AIs falling in midlatitudes in winter, constant in summer
- BIs falling worldwide
- CIs falling in midlatitudes, and strongly falling over Antarctica
- DIs falling in equatorial regions in winter
21End-of-pipe measures are e.g.:
- AUsing more efficient technologies
- BFilter flue gases
- CTechnological improvements in the process
- DDesulfurisation of oil
- EImplementing an emission trading scheme
22What part of the solar spectrum is primarily responsible for the cancer in human skin?
- AUV A
- BUV C
- CRoentgen waves
- DUV B
- EInfra-red
23Protections regarding climate in the future do not rely on:
- AAssumptions on GHG emissions
- BAn understanding of radiation
- CAssumptions on the development of the world population
- DMathematical models to simulate physical processes in the atmosphere
- EStatistical extrapolations of the climate change of the past
24Dispersion models typically consist of 3 modules
- AEmission module, Transmission Module, Immissions Module
- BTransport Module, Immission Module, Impact Module
- CMeterology Module, Chemistry Module, Depostion Module
- DMeterology Module, Chemistry Module, Transport Module
- EMeterology Module, Transport Module, Deposition Module
25Air flow is influenced near buildings
- ABut the induced turbulence is irrelevant for dispersion
- BUp to about 150 m behind the building
- CThe stronger, the smaller the building is
- DIn the vertical within about 2,5 times the height of the building
26Which is no Green House Gas (GHG)?
- ACarbon monoxide
- BCarbon dioxide
- CWater vapour
- DMethane
- EOzone
27Chronic damage caused by air pollution can be prevented by
- AStandards expressed in high percentiles
- BLimiting maximum daily concentrations
- CLong term standards, e.g. yearly means
- DShort term standards, e.g. hourely means
28Concentrations caused at a specific point by a continuous point source vary strongly
- AIn stable layers under strong wind conditions
- BIn neutral (=adiabatic) layers
- CIn inversions
- DIn unstable layers
- EIn isothermal layers near the ground
29Airborne radio nuclide concentraions are especially relevant for
- AInfiltration and submersion
- BIngestion and submersion
- CIngestion and inhalation
- DExposition and ingestion
30What feedback mechanism is reinforcing (=positive)?
- AIncrease in CO2, increased biomass, increased evaporation, cooling
- BTemperature decrease, more glaciers, higher Albedo
- CTemperature increase, increased evaporation, increased cloud cover
- DTemperature increase, forest fires, increased albedo
31A
- AA
- BB
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- Description
- Quiz on AIR POLLUTION, created by Anna Mayer on 15/04/2015.
- Author
- Anna Mayer
- Language
- Deutsch
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