More than 3,000 people [consider joining] a $10 billion lawsuit filed this week against BP…Friendswood attorney Anthony Buzbee filed a federal lawsuit…over the release of more than 500,000 pounds of pollutants…into the air after a unit failure at BP’s Texas City refinery…Buzbee said his clients who already had signed up have experienced “…common benzene exposure symptoms.”…BP doesn’t argue the fact that more than 250 tons of emissions were sent into the atmosphere during the 40 days. The company does take issue with claims the health of workers and residents was affected. “If we believed there was a health impact associated with this event or any event, we would have notified the community,” BP spokesman Michael Marr said.