The transport sector, including road and marine transport, was the second-largest air pollution source in Hong Kong in 2010. To help improve roadside air quality and reduce carbon emissions, the Government set up the $300 million Pilot Green Transport Fund in 2011 to subsidize the testing of green innovative technologies applicable to the public transport sector and goods vehicles. The Government approved 20 new applications in July 2019, which include the trials of 27 electric light goods vehicles and one hybrid light goods vehicle, involving a total subsidy of over $5 million.