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Pan Shiyi tests PM 2.5 on Shanghai subway

2014-01-10 11:34

By (chinadaily.com.cn)

Pan Shiyi tests PM 2.5 on Shanghai subway

Pan Shiyi, chairman of Soho China, uses a PM2.5 density monitor outside Jing'ansi station of Shanghai Subway Line 2 on Jan 9, 2014.[Photo/icpress.cn]

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