摘要
Residents of China’s capital deal with air pollution The Chinese Government has set a stringent standard for the quality of the masks being sold to combat the effects of pollution in Beijing on January 18.The news comes against the backdrop of the unprecedentedamount of heavy haze that had shrouded the Chinese capital for more than 20 days.
Residents of China’s capital deal with air pollution The Chinese Government has set a stringent standard for the quality of the masks being sold to combat the effects of pollution in Beijing on January 18.The news comes against the backdrop of the
