LPG powered scooters
Encyclopedia
An LPG powered scooter is a scooter
Scooter (motorcycle)
A scooter is a motorcycle with step-through frame and a platform for the operator's feet. Elements of scooter design have been present in some of the earliest motorcycles, and motorcycles identifiable as scooters have been made from 1914 or earlier...

 powered by liquefied petroleum gas (LPG) or autogas
Autogas
Autogas is the common name for liquefied petroleum gas when it is used as a fuel in internal combustion engines in vehicles as well as in stationary applications such as generators. It is a mixture of propane and butane....

. The scooters are in use in China and many parts of Southern Asia.

Shanghai
Shanghai
Shanghai is the largest city by population in China and the largest city proper in the world. It is one of the four province-level municipalities in the People's Republic of China, with a total population of over 23 million as of 2010...

 has banned petrol scooters/mopeds and only allows LPG scooters to be used in the city due to air pollution
Air pollution
Air pollution is the introduction of chemicals, particulate matter, or biological materials that cause harm or discomfort to humans or other living organisms, or cause damage to the natural environment or built environment, into the atmosphere....

. About 190,000 gasoline mopeds were eliminated between 2001 and 2004, replaced by 140,000 LPG mopeds as of 2004, at which time the city had over 100 LPG refueling stations. In 1996 the city's 500,000 gasoline mopeds were responsible one fifth of the air pollution in Shanghai, so in 1997 the city stopped issuing new license plates for them. In 2000, the city stopped renewing plates for existing gasoline mopeds, so all of them expired by 2008.
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