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Offshore oil well blowouts can be made extremely dangerous by the presence of hydrogen sulfide gas, and operators need to take steps to minimize the risk of disaster. The gas should be monitored because it is colorless and can deaden the sense of smell. It collects in low areas, can be flammable in high concentrations, and can corrode equipment. Highly-trained personnel should be available to deal with the gas, and all employees at an offshore installation should be trained and in good health. An evacuation and rescue plan should be in place., An offshore blowout with hydrogen sulfide ([H.sub.2]S) gas present requires special procedures and highly trained personnel to control the well quickly and safely. Toxic gas clouds from a blowing well [...]

It is possible to sniff out problems in sewer pipes before they happen ONE of the hidden glories of Victorian engineering is proper drains. Isolating a city's effluent and shipping [...]

Construction work on the Belmont Learning Complex in California is to be halted by the Los Angeles school board because of site contamination by hydrogen sulfide and methane gases and disputes with the design-build contract team.