Lakhasly

Introduction Microplastics, the small polymers with a diameter less than 5 mm, are emerging contaminants with increasing concerns.AccordingtothestudybyGeyeretal.(2017),theabundantcategoriesinworldwidenon-fiberplasticproduction include PE (36%), PP (21%), and PVC (12%), followed by polyethylene terephthalate (PET), polyurethane (PUR) and polystyrene(PS)(eachlessthan10%).Polyester(mostofwhichisPET)consistsof70%ofallpolyester/polyamide/acrylic (PP&A)fiberproduction.Thesesevengroupsaccountfor92%oftheplasticsevergeneratedannually.Nylonisageneric designationofsyntheticpolymerscomposedofpolyamides,whichisathermoplasticmaterialthatcanbeprocessedinto fibers,films,orshapes.Nylonpolymerscanbemixedwithawidevarietyofadditivestoformdifferentpropertiesand haveavarietyofcommercialapplicationsinfabricandfibers(clothingandrubberreinforcement),shapes(moldedparts forcars,electricalequipment),andfilms(foodpackaging).Roughly42%ofthenon-fiberplasticsareusedforpackaging, whichispredominantlycomposedofPE,PP,andPET.Thebuildingandconstructionsector,whichused69%ofallproduced PVC,isthesecond-largestconsumingsector,using19%ofallnon-fiberplastics(Geyeretal.,2017).Manystudieshavebeenconductedtoexaminetheenvironmentalimplicationsofmicroplasticsusingvariousassess- mentmethodsandanalyticalprocedures(Maietal.,2018).ChenandChen(2020)employedtheFourier-transforminfrared (FTIR)spectrometertoquantifythemicroplasticsincoastalareasbyparticlecounting.Loderetal.(2015)utilizedthe focalplanearraydetector-basedmicro-FTIRimagingtomeasurethesizeandnumberofinvestigatedmicroplastics.Yu etal.(2019)appliedthermo-gravimetricanalysis(TGA)coupledwithFTIRspectroscopytoquantifythemicroplastics ofpolyvinylchloride(PVC)andpolystyrene(PS).FischerandScholz-Bottcher(2017)characterizedthecommontypes ofmicroplasticsinenvironmentalsamplesfromtheBalticSeausingpyrolysis-gaschromatography-massspectrometry (GC/MS) methodology.Lin et al. Environmental Technology & Innovation 23 (2021) 101798 2017;CostaandBarletta,2015;Bellasietal.,2020).Withoutadoubt,immediateactionisdeemednecessarytocontrol microplasticpollutioninterrestrialecosystems,especiallytocharacterizeandquantifythemicroplasticsofinterest.

Introduction Microplastics, the small polymers with a diameter less than 5 mm, are emerging contaminants with increasing concerns.AccordingtothestudybyGeyeretal.(2017),theabundantcategoriesinworldwidenon-fiberplasticproduction include PE (36%), PP (21%), and PVC (12%), followed by polyethylene terephthalate (PET), polyurethane (PUR) and polystyrene(PS)(eachlessthan10%).Polyester(mostofwhichisPET)consistsof70%ofallpolyester/polyamide/acrylic (PP&A)fiberproduction.Thesesevengroupsaccountfor92%oftheplasticsevergeneratedannually.Nylonisageneric designationofsyntheticpolymerscomposedofpolyamides,whichisathermoplasticmaterialthatcanbeprocessedinto fibers,films,orshapes.Nylonpolymerscanbemixedwithawidevarietyofadditivestoformdifferentpropertiesand haveavarietyofcommercialapplicationsinfabricandfibers(clothingandrubberreinforcement),shapes(moldedparts forcars,electricalequipment),andfilms(foodpackaging).Roughly42%ofthenon-fiberplasticsareusedforpackaging, whichispredominantlycomposedofPE,PP,andPET.Thebuildingandconstructionsector,whichused69%ofallproduced PVC,isthesecond-largestconsumingsector,using19%ofallnon-fiberplastics(Geyeretal.,2017).Manystudieshavebeenconductedtoexaminetheenvironmentalimplicationsofmicroplasticsusingvariousassess- mentmethodsandanalyticalprocedures(Maietal.,2018).ChenandChen(2020)employedtheFourier-transforminfrared (FTIR)spectrometertoquantifythemicroplasticsincoastalareasbyparticlecounting.Loderetal.(2015)utilizedthe focalplanearraydetector-basedmicro-FTIRimagingtomeasurethesizeandnumberofinvestigatedmicroplastics.Yu etal.(2019)appliedthermo-gravimetricanalysis(TGA)coupledwithFTIRspectroscopytoquantifythemicroplastics ofpolyvinylchloride(PVC)andpolystyrene(PS).FischerandScholz-Bottcher(2017)characterizedthecommontypes ofmicroplasticsinenvironmentalsamplesfromtheBalticSeausingpyrolysis-gaschromatography-massspectrometry (GC/MS) methodology.Lin et al. Environmental Technology & Innovation 23 (2021) 101798 2017;CostaandBarletta,2015;Bellasietal.,2020).Withoutadoubt,immediateactionisdeemednecessarytocontrol microplasticpollutioninterrestrialecosystems,especiallytocharacterizeandquantifythemicroplasticsofinterest.