Air-quality Monitoring
Air quality monitoring by the Department are carried out by 11 general stations and three roadside stations. On 8 March 2012, the Department started reporting data on fine suspended particulates in the air on an hourly basis, that are a leading component of smog. It began regular monitoring of PM2.5 levels, which measure 2.5 micrometers in diameter or less, at three stations since 2005, but the data were never publicized.
Read more about this topic: Environmental Protection Department