ENVIRONMENTAL HEADLINES, JULY 14-20
 LYONDELL UNIT SETTLES POLLUTION CASE WITH EPA Houston Chronicle 7/19/07 A subsidiary of Lyondell Chemical will spend more than $125 million to address air, water and hazardous waste violations at petrochemical plants in Texas and three other states under a settlement announced Wednesday by the U.S. government. CITGO CONVICTED IN DUCK DEATHS AT CORPUS CHRISTI REFINERY Houston Chronicle 7/19/07…