On Thursday, the BP PLC’s has revealed in its annual report that in its two main deep water regions the U. S. Gulf of Mexico and Angola, the production of crude oil has fallen by 15% to 508,000 barrels a day in 2010.

The oil production has slipped from 387,000 barrels per day in 2009 to 338,000 barrels per day in 2010.

In Angola, due various technical problems the production rate of oil has declined from 211,000 barrels per day to 170,000 barrels per day in 2010.

In 2010, the company’s oil production declined by 6.4% to 2.374 million barrels per day.

The National Institute for Environmental Health is planning to start a health survey, focusing on the oil spill impacts on human health. According to the chief of the institute’s epidemiology branch, Dale P. Sandler, 1,000 invitation letters have been dispatched so far to participants.

The participants will be from Florida, Alabama, Mississippi and Louisiana.

The Deepwater Horizon oil spill has affected the tourism and commercial fishing along the Gulf of Mexico coastline, killing 11 people.

The Deepwater Horizon disaster has spilled million of gallons of crude oil into the Gulf of Mexico

Dr. Richard Pierce, director of Mote Marine's Center for Ecotoxicology told WINK, "Once you have oil, that massive amount of oil spilled into the environment, you already got severe problems."