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    Local 481686141

    Toxic leak plume scenarios

    A leak of highly toxic hydrogen fluoride at the refinery in St. Paul Park could endanger 1,400 to 1.7 million people, depending on the severity of the break or rupture. 
    By Mark Boswell Star Tribune
    May 4, 2018 — 11:36am
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    Mark Boswell is Deputy News Graphics Director at the Minnesota Star Tribune and has over 30 years experience as a visual journalist, illustrator and writer.

    mboswell@startribune.com 612-673-7590
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