People snap up bottled water at a supermarket in Lanzhou, Gansu province, April 11, 2014. Tap water in downtown Lanzhou has been found to contain excessive levels of benzene. [Photo / Chinanews.com]
People snap up bottled water at a supermarket in Lanzhou, Gansu province, April 11, 2014. Tap water in downtown Lanzhou has been found to contain excessive levels of benzene. [Photo / Chinanews.com]
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