Environment|US
Hours-long toxic gas leak at Pemex oil refinery near Houston far exceeded legal limit
Pemex's Deer Park oil refinery near Houston discharged 43,500 pounds of highly toxic hydrogen sulfide gas over more than seven hours
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The Los Angeles Post
Pemex's Deer Park oil refinery near Houston discharged 43,500 pounds of highly toxic hydrogen sulfide gas over more than seven hours
U.S. and Mexican investigators have begun probes of a fatal chemical leak at a Houston area oil refinery on Thursday owned by