LPG is a gas that has no odor and is not toxic. In addition, this gas is not as flammable as most other fuels, making it one of the safest vehicle fuel options around. Alternative renewable energy sources such as solar power and hydro power are safer, but there is no fuel involved with these vehicles so the comparison is not equal. LPG does pose a danger though, and this involves a buildup of the gas. LPG is heavier than the air, so it will sink to the lowest point on the floor. Because there is no odor, a buildup of gas in the air may result in asphyxiation because LPG will take place of oxygen in the air. An odor causing chemical is added to LPG so that any leak is detected right away to minimize this safety hazard. There is a second health risk with LPG, and that is frostbite. The gas will not irritate skin, but it is extremely cold when it leaves the pressurized tank. If the escaping gas makes contact with your skin it may cause the skin to freeze, resulting in frostbite.
Vehicles which use propane or LPG are much friendlier to the environment than diesel or gasoline vehicles. LPG vehicles do not produce anywhere close to the amount of carbon monoxide and nitrogen emissions that traditional vehicles which run on gas or diesel do. These vehicles have fuel systems which are tightly sealed up, so no harmful vapors can escape. Liquid Petroleum Gas also has a much lower sulfur amount, and this means that there is less sulfur in the atmosphere to create acid rain. LPG vehicles may run on a fossil fuel, but they are much more efficient and earth friendly than vehicles which run on other types of fossil fuels.
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