1.   Increasing tax on petrol would encourage people to drive smaller cars with fewer noxious emissions.

2.   The air is a toxic cocktail of exhaust fumes and noxious emissions from nearby factories.

3.   The paint industry, breweries, aerosol manufacturers, and even bakeries would have to install equipment to reduce noxious emissions.

4.   Will no-name gas make your engine knock and your tailpipe spew more noxious emissions?

5.   For example, would noxious emissions from this kind of plant be counted as U.S. or Mexican under the Kyoto Agreement on climate change?

6.   He claimed the plant would be environmentally friendly and would not produce noxious emissions.

7.   Neighbors of its buildings and compounds have constantly complained of noxious emissions.