BP has been responsible for more than 8,000 spills, emissions or leaks of oil, chemicals or gases since 1990, according to the Sunlight Foundation. Using data collected by the National Response Center, which compiles reports on oil spills, radiation leaks, chemical emissions and other environmental accidents, the foundation found that BP had allowed chemicals such as benzene, ethylbenzene, and caustic soda solution to be discharged into the atmosphere, or bodies of water. Reports also revealed it permitted spills or gas releases at BP’s refineries, from pipelines, and even at airports where the Air BP subsidiary operates.