Justify the statement, Tall stacks are no longer considered asan accep...

Justify the statement, â€œTall stacks are no longer considered as an acceptable alternative for controlling emissions...

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Chemistry

Justify the statement, â€œTall stacks are no longer considered asan acceptable alternative for controlling emissions from electricpower generating plants.â€

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Dear friend your answer is Tall stacks are closely associated with ICS programs since increased stack height can yield decreased needs for intermittent emission reductions assuming that control of ambient sulfur dioxide concentrations is the sole objective Two basic types of tall stackICS programs are thus apparent In the first stacks of sufficient height are built so that groundlevel concentrations do not abrogate standards even without use of ICS measures This approach is advocated in Great Britain Stone and Clark 1967 Lucas 1974 and also by some utilities in this country for plants located in relatively flat terrain where no limitations on stack height eg limitations imposed by flight safety requirements near airports exist See Answer

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