Definitions for "Fumes"
"Fumes" means vapors, mists, and airborne liquid or solid particulate matter or any combination including these.
vapors, gasses or particles suspended in a vapor or gas
are solid particles that are formed when a substance that has evaporated condenses in cool air. Fumes often result as molten metals cool.
The toxic oxides of nitrogen produced by a detonation.
Keywords:  ejected, gases, waste, engine, products
gases ejected from an engine as waste products
Keywords:  pollution, streets, city, cars, around
The pollution around city streets caused mainly by cars.