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 management. During his inspection of the damage in Kaohsiung, Premier Jiang Yi-huah, ordered the Taiwanese national flag to be flown at half-mast for three days starting 5 August to commemorate the victims of the gas explosions and also the TransAsia Airways Flight 222 crash a week before in Penghu County. Vice Premier Mao Chi-kuo said during the rescue and relief effort works that public utilities companies would work hard to resume power and water supplies within three to five days. Taiwan Power Company said that power supply to about 3,900 households in less-affected areas should resume in two days, while