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100   $a20061012d2006      ua             0
101 0 $aeng
135   $aurmn|---|||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aParticulate matter$b[electronic resource] $eEPA has started to address the National Academies' recommendations on estimating health benefits, but more progress is needed : report to congressional rquesters
210  1$a[Washington, D.C.] :$cU.S. Government Accountability Office,$d[2006]
215   $aii, 39 pages $cdigital, PDF file
300   $aTitle from title screen (viewed on Oct. 11, 2006).
300   $a"July 2006."
300   $aPaper version available from: U.S. Government Accountability Office, 441 G St., NW, Rm. LM, Washington, D.C. 20548.
300   $a"GAO-06-780."
320   $aIncludes bibliographical references.
517   $aParticulate matter 
606   $aParticles$xEnvironmental aspects$zUnited States
606   $aAir$xPollution$zUnited States
606   $aEnvironmental policy
606   $aHealth risk assessment$zUnited States
606   $aEnvironmental risk assessment$zUnited States
615  0$aParticles$xEnvironmental aspects
615  0$aAir$xPollution
615  0$aEnvironmental policy.
615  0$aHealth risk assessment
615  0$aEnvironmental risk assessment
801  0$bGPO
801  1$bGPO
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912   $a9910695346703321
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