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Safety Aspects
Petrol is a highly unsafe, volatile, easily ignited and hazardous fuel.
Diesel fuel, though less volatile than petrol presents the same problems as Petrol as regards storage, handling etc.
Natural gas is a very safe fuel. It is buoyant at temperatures above -160°F and rises into the atmosphere. It does not pool on the ground and therefore spills or leakages dissipate rapidly in the atmosphere. It has a high ignition temperature, approximately 1,200°F (about 500°F higher than gasoline) and is therefore diffcult to autoignite.
It also has a narrow range of flammability. This means that in concentrations below 5 % and above 15 %, natural gas will not burn. These factors make accidental ignition or combustion of natural gas unlikely.
Natural gas does not detonate in an open environment.
Natural gas is neither toxic nor corrosive and it cannot contaminate ground water.
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