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At what concentration can the taste and smell of sulphur dioxide be detected?

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+1 vote
in Environmental Engineering by (81.4k points)
At what concentration can the taste and smell of sulphur dioxide be detected?

(a) 1000-2000ppm

(b) 11-30ppm

(c) 500-700ppm

(d) 0.1-0.3ppm

I have been asked this question in homework.

The question is from Air Pollution in chapter Air Pollution of Environmental Engineering

1 Answer

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Best answer
Right answer is (d) 0.1-0.3ppm

Easiest explanation: Sulphur dioxide has a pungent odour which can be detected in even in very minute concentrations in the range of 0.1 – 0.3 parts per million.

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