51.   Those investigations center on Arminta Street and Germain Street elementaries and Francis Polytechnic High School, where landfills could be leaching methane gas and other emissions.

52.   When it rains, the ground bubbles with methane gas rising to the surface.

53.   Workers building the line on Wilshire Boulevard produced a spark that set off methane gas under a Ross Dress for Less store.

54.   People in Santurce often complain of the stink of methane gas, which builds up when sewage lines get clogged.

55.   Part of the mine roof collapsed, causing a spark that ignited highly volatile methane gas, the company said.

56.   A garlic odor is injected into the methane gas to help detect leaks.

57.   Additionally, such a project will prevent environment pollution from methane gas.

58.   An explosion caused by methane gas killed six coal miners in the Donetsk region of Ukraine on Saturday and injured seven.

59.   An explosion caused by methane gas killed three coal miners in the Donetsk region of Ukraine Saturday and left two others badly burned.

60.   Canatoy said the methane gas produced by the garbage would soon kill anyone buried under the waste.