Haze in China: current and future challenges.

Regional haze which triggered both public anxiety and official concerns has been one of the most disastrous weather events in China in recent years. Haze not only had negative impact on daily life, but also an indicator of high concentrations of PM2.5 with the potential to adversely impact public health by damaging people's respiratory, cardiovascular, blood vessel of brain and nervous system. The dust-haze is an accumulated result for a long time of both natural factors and unhealthy economic growth model. In order to tackle air pollution, a number of policies and measures which target at reducing pollution emission and promoting alternative energy production had been implemented. Although significant improvement has occurred in China, change the development mode of "high growth, high pollution" and balance environmental conservation with the well-being of the population remains a challenge for China.