Only eight Chinese cities met the country's air quality standards in 2014, according to China's Ministry of Environmental Protection, although this was an improvement on 2013 when just three made the grade.
원문출처 : http://edition.cnn.com/2015/02/03/asia/china-pollution-rankings/index.html?eref=edition
원문출처 : http://edition.cnn.com/2015/02/03/asia/china-pollution-rankings/index.html?eref=edition