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 of several Taiwanese petrochemical companies took a dive in the aftermath of the explosions, especially those operating in Kaohsiung. The shares of LCY has dropped 30% since the explosions day. Deputy Minister of Economic Affairs Woody Duh said that the ministry would set up a system soon to help check the underground pipelines and build a database for safety management in the future, starting from Kaohsiung and followed by other cities, municipalities and counties. Duh mentioned that relocation of the Kaohsiung underground pipelines would be considered once the roadworks are completed. Taipei City Government ordered mandatory inspections of all four