01717nam 2200457 a 450 991069534670332120061012134806.0(CKB)5470000002369284(OCoLC)72693967(EXLCZ)99547000000236928420061012d2006 ua 0engurmn|---|||||txtrdacontentcrdamediacrrdacarrierParticulate matter[electronic resource] EPA has started to address the National Academies' recommendations on estimating health benefits, but more progress is needed : report to congressional rquesters[Washington, D.C.] :U.S. Government Accountability Office,[2006]ii, 39 pages digital, PDF fileTitle from title screen (viewed on Oct. 11, 2006)."July 2006."Paper version available from: U.S. Government Accountability Office, 441 G St., NW, Rm. LM, Washington, D.C. 20548."GAO-06-780."Includes bibliographical references.Particulate matter ParticlesEnvironmental aspectsUnited StatesAirPollutionUnited StatesEnvironmental policyHealth risk assessmentUnited StatesEnvironmental risk assessmentUnited StatesParticlesEnvironmental aspectsAirPollutionEnvironmental policy.Health risk assessmentEnvironmental risk assessmentGPOGPOBOOK9910695346703321Particulate matter2601068UNINA