Nano Matters Building Blocks for a Precautionary



  NanoMatters  BuildingBlocksforaPrecautionaryApproach              PieterJ.C.vanBoekhuizen

 



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NanoMatters BuildingBlocksforaPrecautionaryApproach    

ACADEMISCHPROEFSCHRIFT  terverkrijgingvandegraadvandoctor  aandeUniversiteitvanAmsterdam  opgezagvandeRectorMagnificus  prof.dr.D.C.vandenBoom  tenoverstaanvaneendoorhetcollegevoorpromotiesingesteldecommissie,  inhetopenbaarteverdedigenindeAuladerUniversiteit  opvrijdag21December2012,te15:00uur   door   JacquesCornelisvanBroekhuizen  geborenteAmsterdam     

  Promotor: Prof.Dr.L.Reijnders  Overigeleden: Prof.Dr.W.E.Bijker  Prof.Dr.F.J.H.vanDijk  Prof.Dr.W.R.F.Notten  Prof.Dr.W.P.deVoogt  FaculteitderNatuurwetenschappen,WiskundeenInformatica  

 

                   The work in this thesis was performed at IVAM UvA BV – Research and Consultancy on Sustainability,PlantageMuidergracht24,1018TVAmsterdam. ThestudywasfacilitatedbyageneralgrantfromtheUvAHoldingBV.Partsofthestudy elaborate on other projects such as the capacity building project NanoCap that was granted by the European FP6, Science and Society Program, grant no. SASͲCTͲ2006– 036754ͲNanoCap, the study within the context of the European Social Dialogue in the Construction Industry as granted by the European Commission, Directorate General Employment by the grant agreement no. VS/2008/0500–SI2.512656, a study granted by Stichting Arbouw to perform exposure measurements in the construction industry, the pilotprojects‘NanoReferenceValues’and‘Guidanceforsafeworkingwithnanomaterials’, ascommissionedbytheDutchsocialpartnersFNV,CNVandVNO/NCWwithagrantfrom the Dutch Ministry of Social Affairs and by many discussions within the frame of the WorkingConditionsCommitteeoftheDutchSocialEconomicCouncil.



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9"! S'5=-&+0'$'4*'$%&'6J-$(+$B%''60%'0)=='&%0-4/T'&A+$BT+%12xNRV15minͲTWA.Measurementsinanotherpaintcompany manufacturingapaintbasedonnanoͲTiO2showed8hrͲTWAexposuresfarbelowtheNRV8hrͲTWA.Van MaanenͲVernooij et al. (2012) emphasize that the level of exposure is strongly influenced by the handlingproceduresandthecontrolmeasuresappliedinaddingthebagstothemix.  „ In sum: the downstream information supply on nanomaterials’ release and potential risks shows large gaps. Gaps may regard products (components) supplied to paint manufacturers and professionalendusers,butmayalsoregardsinformationaboutproductssuppliedforservices(like carrepairandmaintenance).Thelackofinformationisnotalwaysexperiencedasproblematic,asis shownforpaintcontractors.Exposuretonanomaterialsinthepaintvaluechainisexpectedprimarily duringpaintmanufacturing.Theexposuretoairbornenanomaterialsduringpaintmanufacturingis stronglyinfluencedbythecontrolmeasuresandcaretakenduringthehandlingofthenanomaterials. Exceeding of the NRV15minͲTWA is likely when insufficient control measures are taken. The source of airbornenanomaterialsmayalsobe“conventional”drypowderingredients,whichcontainnanosized particles. This source may dominate over the number concentrations generated by nanoͲ components.    References  VanBroekhuizenF(2012),“NanoinFurniture”,StateoftheArt2012,ExecutiveSummary,IVAMUvABVMay 2012,EuropeanSocialDialogueintheFurnitureIndustry  VanMaanenͲVernooijB,LeFeberM,vanBroekhuizenF,vanBroekhuizenP(2012),Pilot“KennisdelenNanoin deVerfketen”,TNOreportV9445|1,March2012.http://www.rijksoverheid.nl/documentenͲenͲ publicaties/rapporten/2012/04/10/eindrapportͲpilotͲkennisdelenͲnanoͲinͲdeͲverfketen.html



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NanoMatters - Building Blocks for a Precautionary Approach ____________________________________________________________________________________________



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