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Initial assessment of imports of chlorinated paraffins into Nigeria and the need of improvement of the Stockholm and Rotterdam Conventions

引用

Emerging Contaminants 2022年第1期8卷 360-370页

作者： Joshua O.Babayemi Innocent C.Nnorom Roland Weber Environmental Management and Toxicology Department of Biological SciencesUniversity of Medical Sciences OndoNigeria Anchor University Centre for Global Health Nigeria Department of Pure and Industrial Chemistry Abia State University UturuNigeria POPs Environmental Consulting 73527Schw€abisch GmündGermany

Short-chain and medium-chain chlorinated paraffins(SCCPs/MCCPs)are of concern due to their persistence,bioaccumulation,and *** were listed in 2017 as persistent organic pollutants(POPs)in the Stockholm Convention and Rotterdam Convention for Prior Informed Consent(PIC)*** are evaluated in the POPs Reviewing Committee for *** in Africa demonstrate high SCCP/MCCP levels in house dust and human ***,this study undertook an initial assessment of the production and import situation in *** Nigerian government has not assessed SCCPs yet and has no registered exemptions for SCCPs and therefore should not produce or use ***,Nigeria has not notified Rotterdam Convention of PIC procedure and,therefore,no SCCP should be imported into *** no local production of SCCPs/MCCPs was observed in Nigeria,this study therefore compiled data on importation of SCCPs/MCCPs and products which may likely contain these chemicals from the UN Comtrade Database for the period 1996 to *** the listing of SCCPs in the Rotterdam Convention,there is still no specific Harmonized System(hs)codes for SCCPs/*** study therefore used hs codes of product categories known to contain SCCPs/*** substance categories under which SCCP/MCCPs are usually imported include plasticisers and other product categories that amounted to 229,779 and 518,342 tonnes respectively but without specific information on the type of *** 39%of PVC and rubber imports of 2,683,015 tonnes and 3,516,052 tonnes respectively contain *** on the SCCP and MCCP impact factors from literature for China,the highest amount of SCCP(33,712 tonnes)was imported in the different PVC products while rubber products accounted to 1386 tonnes and PUR foam to 2331 *** amount of imported MCCPs in PVC products(25,599 tonnes)and rubber products(32,317 tonnes)was in the same order of magnitude while MCCP imported in PUR foam was estimated

关键词： SCCPs/MCCPs Plasticisers Importation PVC hs code Inventory Nigeria

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