It could, for instance, be particularly useful in environmental monitoring of smokestacks and car exhausts.

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In the 1980s, there was a vogue for fitting hoses to car exhausts and feeding fumes through the window.

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The 30-year-old's car was fitted with a new front wing, diffuser, engine cover and exhausts.

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At the back of the building on the first floor, parts dept. lorries were unloaded fortnightly with car parts brought down from BMC Birmingham, these included everything from engines, body panels, exhausts to spare bulbs.

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