Sodium cyanide levels well past limit at Tianjin explosion site
August 20, 2015  22:24
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High levels of dangerous chemicals remain at the site of last week's deadly chemical warehouse blasts in the northern Chinese city of Tianjin -- hundreds of times higher than is safe at one spot -- officials said, signaling that a cleanup has a significant way to go. 

Water tests show high levels of sodium cyanide, an extremely toxic chemical that can kill humans rapidly, at eight locations at the blast site, Ministry of Environmental Protection official Tian Weiyong said.

The sodium cyanide level at one spot was 356 times higher than a safety limit, Tian said.
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