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181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aEstimation of annual agricultural pesticide use for counties of the conterminous United States, 1992-2009 /$fby Gail P. Thelin and Wesley W. Stone
210  1$aReston, Virginia :$cU.S. Department of the Interior, U.S. Geological Survey,$d2013.
215   $a1 online resource (66 pages) $cillustrations, maps +$e2 appendices
225 1 $aScientific investigations report ;$v2013-5009
300   $a"National Water-Quality Assessment Program."
300   $aAppendix 1. Summary of EPest-low and EPest-high annual national totals by pesticide and crop type (1.1 MB) -- Appendix 2. EPest-low and EPest-high annual national totals derived from EPest surveyed, tier 1, tier 2, and regional rate estimates (400 KB).
320   $aIncludes bibliographical references (page 54).
606   $aGroundwater$xPollution$zUnited States
606   $aPesticides$xEnvironmental aspects$zUnited States
606   $aAgricultural pollution$zUnited States
606   $aAgricultural pollution$2fast
606   $aGroundwater$xPollution$2fast
606   $aPesticides$xEnvironmental aspects$2fast
607   $aUnited States$2fast
615  0$aGroundwater$xPollution
615  0$aPesticides$xEnvironmental aspects
615  0$aAgricultural pollution
615  7$aAgricultural pollution.
615  7$aGroundwater$xPollution.
615  7$aPesticides$xEnvironmental aspects.
700   $aThelin$b Gail P.$01390087
702   $aStone$b Wesley W.
712 02$aNational Water-Quality Assessment Program (U.S.)
712 02$aGeological Survey (U.S.),
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996   $aEstimation of annual agricultural pesticide use for counties of the conterminous United States, 1992-2009$93536792
997   $aUNINA