Ten U.S. oil refineries, including six in Texas, released the cancer-causing chemical benzene in concentrations that exceeded federal limits last year, according to government data published by the green group Environmental Integrity Project on Thursday.  The study is based on the first full year of data reported by U.S. refineries since a U.S. Environmental Protection Agency rule was implemented in 2018. The rule requires continuous monitoring of air pollutants around plants to protect nearby communities, many of which are disproportionately poor, black and Hispanic. “These results highlight refineries that need to do a better job of installing pollution controls and implementing safer workplace practices,” EIP Executive Director Eric Schaeffer said in a statement. “Now, EPA needs to enforce these rules.” EPA officials […]