The Environmental Protection Agency submitted requested information to the House Science, Space, and Technology Committee on August 19. The committee had subpoenaed the agency for data on air pollution; staffers on the committee said they are currently reviewing all submitted information. In addition, following a series of requests beginning in March for data from Senate Environment and Public Works Ranking Member David Vitter (R-LA), the agency also released the same day part of the data used in its 2009 study on fine particulate matter and public health.