Sewer gas Sewer gas Sewer gas is a complex mixture of toxic and nontoxic gases produced and collected in sewage systems by the decomposition of organic household or industrial wastes, typical components of sewage. Sewer gases may include hydrogen sulfide, ammonia, methane, esters, carbon monoxide, sulfur dioxide and nitrogen oxides. Improper disposal of petroleum products such as gasoline and mineral spirits contribute to sewer gas hazards. Sewer gases are of concern due to their odor, health effects, and potential for creating fire or explosions. Sewer gas is typically restricted from entering buildings through plumbing traps that create a water seal at potential
2012 Jersey gas holder fire 2012 Jersey gas holder fire The 2012 Jersey gas holder fire occurred when fire broke out at a gas holder, owned by Jersey Gas, on Tunnell Street, in Saint Helier, Jersey. The Jersey Fire and Rescue Service brought the fire under-control, and it burnt out during the early hours of 5 July 2012. In the aftermath of the incident Jersey Gas was fined £65,000 by the island's Royal Court and ordered to pay legal costs of £11,000. An investigation by the Jersey Fire and Rescue Service conducted shortly after the incident determined the fire started while workers were "repairing a