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A man pushes a shopping cart filled with bottled water after reports on heavy levels of benzene in local tap water, in Lanzhou, Gansu province, China. (Reuters photo)
phys.org - April 11, 2014
Tap water in a Chinese city was found to contain excessive levels of the toxic chemical benzene, prompting residents to rush to buy bottled water, state media said on Friday.
Tests conducted on Thursday and Friday showed that tap water in Lanzhou, the capital of northwestern Gansu province, had as much as 200 micrograms of benzene per litre, 20 times the national limit, the official Xinhua news agency said, citing local environment authorities.
Benzene is an aromatic, colourless liquid and a basic raw material used in the petrochemical industry. Human exposure to the chemical increases the risk of cancer and other illnesses.
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