Jan­uary 3, 2017

China Today (English) - - FOCUS -

Pro­fes­sor Liu Yong of Beijing Univer­sity of Chem­i­cal Technology dis­plays mask fil­ters con­tain­ing fine par­ti­cles from the haze in Beijing and sur­round­ing ar­eas whose el­e­ments he and his spe­cial­ist team will iso­late and an­a­lyze.

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