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NEWS LowTechnologyApproachto DredgedMaterial Management LondonConvention(LC)andits1996Protocol(LP)areglobalconventionsto protectthemarineenvironmentandthemostwidelyapplicablelegislative instrumentsfortheregulationofthedisposalofdredgedmaterialatsea.CEDA activelyparticipatesintheworkoftheLC/LPwhereitrepresentsWODA. ThroughfeedbackfromparticipantsinregionalworkshopsLC/LPidentifiedthe needtodevelopalowtechnologyapproachtodredgedmaterialmanagementto helpthosecountrieswhereregulationsarecurrentlyabsentorindevelopmentandwheretechnicalequipmentandknowhow islackingortooexpensivetorealisticallysetupfromscratch.ThereforetheIMOcontractedCEDAtodevelopsuchan approachintheformofatrainingsetextensiontotheLC/LPWasteAssessmentGuidelines(WAG)andbasedontheLC SpecificGuidelinesforAssessmentofDredgedMaterial(previouslyknownastheDMAF). TheWAGtrainingsetextensionfortheapplicationoflow-technologytechniquesforassessingdredgedmaterial(Low-tech WAG)hasnowbeendevelopedforCEDAbyCentreforEnvironment,FisheriesandAquacultureScience(Cefas),acorporate memberofCEDA.Thelow-techWAGprovidesinformationonlow-costsampling(includinganinventiveuseacolabottle), testing,informationgatheringanddocumenting,low-costmonitoringandfeedbacksurveystohelpimprovedecisionmaking inrelationtodredgedmaterial.Italsofocusesonthealternativeuseofdredgedmaterialreferencingrecentworkundertaken byCEDA. Thelow-techapproachisseenasatemporarymeasuretoallowcountriestoadoptaprecautionaryapproachtothe managementofdredgedmaterial,intheeventthattheyhavenotyetdevelopedsufficientcapabilitytoallowthemtofollow thefullapproachoftheLC/LPGuidelines. TheLow-techWAGwasadoptedbytheLC/LPgoverningbodiesinOctober2011.IthasnowbeenpublishedbytheIMOtobe ‘road-tested'byitsintendedaudience(e.g.portsandregulatoryauthoritiesoperatinginlow-techenvironments).Itishoped thatthisprocesswillenableidentificationoffurtherlow-techapproachesthatcanbeincorporatedinthefuturetoincrease theLow-techWAG'susability.ThedocumentisalsopublishedontheWODAandCEDAwebsites.MembersofCEDA,EADA, WEDAandothersareencouragedtoparticipateintheroad-test.InterestedorganisationsshouldcontacttheCEDA,EADAor WEDASecretariat(CEDA:AnnaCsiti,GeneralManager,[email protected];EADA:RasydanAlias,[email protected]; WEDA:LarryPatella,[email protected]). Image:Nearbedflowandsedimenttransportpatternscanbeinvestigatedbyusingseabeddrifterswhicharereleasedatthe disposalsite. https://www.hydro-international.com/content/news/low-technology-approach-to-dredged-material-management
