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
2014 Kaohsiung gas explosions the company with electricity and water respectively. The Minister of Economic Affairs Chang Chia-juch, acting as the Director of the Central Emergency Operation Center, suspected that the explosions were caused by a propene leak, and the firefighters could not extinguish the fires with water. Emergency workers had to wait until the gas had burnt away after the supply was shut down. It is suspected that the affected pipelines were those used for gas delivery to the petrochemical factory LCY Chemical Corp. (LCY; ). The affected pipelines were designed and constructed by the government-owned CPC Corporation. However, CPC said that the