ld) Frontal 139) The concentration of pollutant in the atmosphere is dependent o
ID: 116823 • Letter: L
Question
ld) Frontal 139) The concentration of pollutant in the atmosphere is dependent on all of these except (a) Extent of pollution b) Atmospheric conditions in the Mesosphere c) wind íd) Humidity (40) Which of these is not regarded as a particulate matter? b) Pb lc) Fe (d) Al (41) How does residence time of particulate matter vary with particle size? (5 pts) (42) List three ecological and three health risks organisms are exposed to from pollutants. (Spts) (43) The atmospheric pollutant responsible for reddish-brown haze in urban air spaces is (a) NO (b) Co (c) NO (44) Which of these pollutants is least likely to be responsible for acid rain? (a) SO (b) CO (d) co (45) Differentiate between mixing height and inversion height. (5pts) (46) The plume that develops immediately below an inversion layer is called (a) Looping (b) Fumigation (c) Lofting (d) Coning (47) Which of these is not an indicator for atmospheric instability? (a) Low clouds (b) Strong windsExplanation / Answer
39) Atmospheric conditions of Mesosphere. All the other factor directly impact on the concentration of pollutant in the air.
41) The bigger the particle size the lesser time it will stay in air, and the smaller the particle the more time it will stay in air. This is because bigger particles are heavy where as smaller particles are lighter
42) Ecological risks
i) The particles might start the bio-accumulation.
ii) The organisms or species might have adverse effect to the particular matter
iiii) The spreading of the pollutant on mass scale occurs.
Health Risks
i) Particulate matter exposure may induce cancer.
ii) Matter like Pb can cause genetic mutation
iii) Inhaling of particulate matter can induce various diseases.
43) NO2
44) SO2
47) A) low clouds
Please ask the rest of the questions in separate questionnaire.
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