Guangzhou will tighten its emission standards on light vehicles from next month in a move the city says could cut their pollutant discharges by at least 30 per cent, according to local media reports.
The Nanfang Daily said yesterday that Guangzhou would officially enforce the National Phase III Motor Vehicle Emission Standards, the equivalent of European III standards, from September 1 and any new light vehicle not meeting the standards would not be licensed.
The standards are being introduced 10 months ahead of a central government deadline for national implementation.
The phase-three standards were implemented in Beijing in December and Shanghai applied them last month.
China began enforcing standards equivalent to European I levels in 2000 and the existing phase-two levels came into effect in 2004.
Vehicles meeting the new standards could cut their output of pollutants by 30 per cent to 50 per cent, said Liu Xian, a vehicle emissions expert at the Beijing Automobile Research Institute.
The new standards also require all new vehicles coming onto the market to include an in-built diagnostics system to monitor emissions and alert the driver if exhaust fumes are too high.
Cai Ruibin , a vehicle expert from the South China University of Technology, said the government should focus more on implementation.
Professor Cai said the government's routine examinations of car emissions were very important, but there were no qualified institutes in the province to check whether vehicles met the new standards.
He also said the government should improve traffic flow because cars discharged several dozen times the usual amount of exhaust fumes when stuck in traffic jams.