A university team is assessing whether a cement works near Rawalpindi should install filters and use waste heat to generate electricity. Nearby residents ha...
Question 1 Report
A university team is assessing whether a cement works near Rawalpindi should install filters and use waste heat to generate electricity. Nearby residents have reported dust on crops, while managers argue that the factory provides important jobs and materials for Pakistan's construction sector.
(a) State one pollutant, other than carbon dioxide, that may be released by a cement works. [1]
(b) Explain two reasons why recovering waste heat is more sustainable than allowing it to escape. [2]
(c) Analyse one social benefit and one environmental cost of retaining the factory at this location. [1]
Answer Details
(a) Dust / particulate matter / sulfur dioxide / nitrogen oxides [1]. (b) Any two: waste energy is used to generate electricity [1]; less fuel needs to be burned [1]; operating costs and carbon dioxide emissions can fall [1]. (c) Social benefit: employment / local construction materials [1]. Environmental cost: air pollution / dust on crops / carbon dioxide emissions [1].
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