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Real estate tycoon measures PM2.5 in Shanghai metro (6/10)

2014-01-09 16:03 Ecns.cn Web Editor:Gu Liping
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Pan Shiyi (R), a real estate tycoon, measures PM2.5 using a device in a metro train of Shanghai, with reporters and passengers around him on Jan 9, 2014. Pan said the concentrations of PM2.5 in 14 spots selected from Shanghai metro were from 36 to 54 micrograms per cubic meter. [Photo: China News Service / Pan Suofei]

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