Environment Missouri
Saint Louis Post-Dispatch
Blythe Bernhard

More than 12.7 million pounds of toxic chemicals, such as nitrates, arsenic, benzene and mercury were dumped into the Mississippi River in 2010, according to a report released Thursday by the advocacy group Environment Missouri.

Only the Ohio River, with 32 million pounds, received more toxic discharge in 2010, according to the report based on data from the U.S. Environmental Protection Agency.

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