Mississippi River closed, plants evacuated after sulfur trioxide release

Tuesday, March 23, 2010 | 3:31 p.m. CDT; updated 4:41 p.m. CDT, Tuesday, March 23, 2010

ST. LOUIS — A section of the Mississippi River was shut down in northeast Missouri on Tuesday after a cloud of sulfur trioxide gas was released from an industrial plant. The BASF plant and others nearby were evacuated.

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