LG GD570 Manual page 16

Blasting Areas
To avoid interfering with blasting operations, turn your phone
OFF when in a "blasting area" or in areas posted: "Turn off
two-way radio". Obey all signs and instructions.
Potentially Explosive Atmosphere
Turn your phone OFF when in any area with a potentially
explosive atmosphere and obey all signs and instructions.
Sparks in such areas could cause an explosion or fire resulting
in bodily injury or even death.
Areas with a potentially explosive atmosphere are often, but
not always marked clearly. Potential areas may include: fueling
areas (such as gasoline stations); below deck on boats; fuel or
chemical transfer or storage facilities; vehicles using liquefied
petroleum gas (such as propane or butane); areas where the
air contains chemicals or particles (such as grain, dust, or
metal powders); and any other area where you would normally
be advised to turn off your vehicle engine.
For Vehicles Equipped with an Air Bag
An air bag inflates with great force. DO NOT place objects,
including either installed or portable wireless equipment, in
the area over the air bag or in the air bag deployment area. If
in-vehicle wireless equipment is improperly installed and the
air bag inflates, serious injury could result.