1.   As household refuse Decomposes, it produces an explosive gas, methane.

2.   The dumps were generating explosive gases and leaching noxious chemicals that polluted underground water sources.

3.   A new computer system for checking on chemical reactions deep below the ground could dramatically improve monitoring of the build-up of explosive gasses.

4.   But in the tanks, that chemical was converted to an explosive gas.

5.   Comprehensive environmental tests later determined that the explosive gas, seeping from an old oil field, pervades the entire site.

6.   Hydrogen is an explosive gas that is created by the interaction of high radiation fields on other chemicals.

7.   The LAUSD installed classroom sensors improperly, potentially exposing teachers and students to explosive gases.

8.   Their primary goal was to vent the building by breaking windows and punching holes through doors and screens, which allows potentially explosive gases to escape.

9.   Unknown to the crew, ammonium nitrate generates oxygen and explosive gases when heated.

10.   Use extreme caution when handling a battery, since it can produce explosive gases.