This is a summary of a report that studies the health risks and economic loss linked to PM2.5 in four major Chinese cities, and assesses the potential public health and economic benefits given effective improvement of PM2.5 pollution control under different scenarios.

Tea drinking is one of China's most cherished customs; and tea a symbol of Chinese culture. Today, China is the world's biggest tea producer, with 20 tea-producing provinces and eight million tea growers. And the area of tea plantations and annual tea output in the country is on a continuous rise.