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May 26, 2014

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All-clear after poison gas leak

AIR and water quality in Baoshan District were at safe levels yesterday morning after poisonous sulfur trioxide gas leaked on Saturday, environmental authorities said.

The leak occurred at noon when maintenance work was being carried out at Shanghai Lianshi Electronic Chemical Materials Co in Baoshan.

Primary investigations concluded that the gas might have escaped from an 8-ton tank containing sulfur trioxide, due to corrosion on a valve.

A number of people were evacuated, but there were no casualties, said authorities.

The Baoshan environmental protection administration said pollution levels in the area were all within safe standards.


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