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Real estate tycoon measures PM2.5 in Shanghai metro (10/10)

2014-01-09 16:17 Ecns.cn Web Editor:Gu Liping
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Photo taken on Jan 9, 2014 in Shanghai shows Pan Shiyi, a real estate tycoon, with a measureing-PM2.5 device in his hands. Pan measured PM2.5 in 14 spots selected from Shanghai metro Thursday. [Photo: China News Service / Pan Suofei]
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