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Shell settles state, US clean air violations at Louisiana plant

WASHINGTON, Feb 12 (Reuters) - Royal Dutch Shell Plc (LSE: 0LN9.L - news) 's Shell Chemical LP will install a $10 million pollution monitoring and control system at its Norco, Louisiana, chemical plant as part of a settlement over allegations it violated the Clean Air Act, the U.S. Department of Justice said on Monday.

In a statement, the department said Shell Chemical would also pay $350,000 in civil penalties as part of the consent decree. (Writing by Susan Heavey; Editing by Jeffrey Benkoe)