BEIJING, April 25 (Xinhua) -- More than half of the number of days in the first three months of the year had clean air, according to results from74 Chinese cities that were monitored.
Forty-eight days out of 90, or 53.1 percent, had clean air, up 5.1 percentage points year on year, the Ministry of Environmental Protection said on Friday.
The ten cities with the most serious air pollution were Xingtai, Shijiazhuang, Baoding, Tangshan, Handan, Hengshui, Jinan, Xi'an, Langfang and Chengdu, most of them in the country's north, the ministry said in a report.
Air pollution in the region surrounding Beijing was worse than other parts of the country during the three months, according to the report.
The 13 monitored cities in the region had on average more than 69.4 percent of days that failed to meet standards, while the national average stood at around 47 percent.
South China's Pearl River Delta had more clear days than other parts of the country with 76 percent meeting the standard.
There was a slight drop in the density of pollutants PM2.5 and PM10 in March compared with the same period last year, the report said.
To cope with severe air pollution challenges, the government announced a plan in September to tackle air pollution by cutting coal consumption, shutting down polluters and promoting cleaner production.
The plan aims to cut density of inhalable particulate matter by at least 10 percent in major cities nationwide by 2017.