 Chaoyang news |
| Air Quality of Chaoyang District Stays Good in the 1st Quarter, Number of 'Blue Sky' Days Inceases |
| 2009-04-14 14:31:05.0 |
| By 31st March, 72 and 70 days of Grade 2 air and above had been recorded at two national controlled stations in China Agriculture Exhibition Center and Olympic Sports Center Gymnasium respectively, taking up 80.0% and 77.8% among all the days monitored over the same period. Comparison with that of the same period last year, there was an increase of 4 days both at Agriculture Exhibition Center and at Olympic Sports Center Gymnasium. |