Eastern city unveils Clean Air Action Plan to protect environment

Shanghai unveiled its Clean Air Action Plan on Friday, which aims to reduce the concentration of PM2.5 by 20 percent to the 2012 level by 2017.

The plan, introduced in China's most populous city with nearly 24 million residents including 173,000 foreigners, included targets for pollution prevention in six sectors - energy, industry, transportation, construction, agriculture and social life.