sewer gas

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Noun1.sewer gas - foul-smelling gas that forms in sewers
gas - a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely
References in classic literature ?
smoke, sewer gas and similar products of civilization.
Alan, 45, and 34-year-old Stephen died in a horrific sewer gas accident in June.
THE heartbroken son of a man who was poisoned by toxic sewer gas paid an emotional tribute to him at his funeral yesterday.
Unlike cast iron or other metallic covers and rings, BlueGreen Sewper Covers are not affected by H2S sewer gas and will never rust, said Eric Dupre, BlueGreen technical director of product development.
When the Obama administration rolled out the American Recovery & Reinvestment Act of 2009, Owens saw potential to fix the city's aging water and sewage infrastructure, which in some places was seeping raw sewage and sewer gas from underground.
Testing is done within two phases in the chamber: a liquid phase containing a prescribed acid and saline solution; and a vapor phase consisting of air, humidity and concentrated sewer gas, which is composed of hydrogen sulfide, carbon dioxide and methane gases.