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1、Whitepollutionisanimagetitleoftheenvironmentalpollutionphenomenonofoneoftherefractoryplasticgarbage(especiallyplasticbags).Itreferstotheuseofpolystyrene,polypropylene,PVCandotherpolymersofplasticproductsmadefromvarioustypesoflifebecomeasolidwastedisposalafteruse,due
2、tofreethrowlitter,dealingwithdifficultdegradation,resultinginsevereurbanenvironmentpollution.Plastichhasadvantagesoflightweight,waterproof,anti-corrosionSincethedevelopmentofplasticearlierthiscentury,ithasbecomeapopularmaterialusedinawidevarietyofways.Todayplasticis
3、usedtomake,orwraparound,manyoftheitemswebuyoruse.Theproblemcomeswhenwenolongerwanttheseitemsandhowwedisposeofthem,particularlythethrowawayplasticmaterialusedinwrappingorpackaging.Plasticsareusedbecausetheyareeasyandcheaptomakeandtheycanlastalongtime.Unfortunatelythe
4、sesameusefulqualitiescanmakeplasticahugepollutionproblem.Thecheapnessmeansplasticgetsdiscardedeasilyanditslonglifemeansitsurvivesintheenvironmentforlongperiodswhereitcandogreatharm.Becauseplasticdoesnotdecompose,andrequireshighenergyultra-violetlighttobreakdown,thea
5、mountofplasticwasteinouroceansissteadilyincreasing.Studiesdonelocallyshowabout3500particlesofplasticpersquarekilometreofseaoffthesouthernAfricancoast.Surveysof50SouthAfricanbeachesfromtheEasternCapetoCapeTownshowthatinfiveyearsto1989plasticpollutionhasincreasedby190
6、%.Morethan90%ofthearticlesfoundonthesebeachescontainedplastic.PlasticisnowfoundonvirtuallyallSouthAfricanbeaches,eventhemostremote,andresearchersarenowalsofindingplasticrubbishinAntarcticregions.Theplasticrubbishfoundonbeachesnearurbanareastendstooriginatefromuseonl
7、and,suchaspackagingmaterialusedtowraparoundothergoods.Onremoteruralbeachestherubbishtendstohavecomefromships,suchasfishingequipmentusedinthefishingindustry.Whitepollutionhastwomainhazards:"Visualpollution"and"potentiallyhazardous"."Visualpollution":Referstotheplasti
8、cbags,lunchboxes,cups,bowlsandotherone-timenon-degradableplasticproductsscatteredinthenaturalenvironment,topeopleadversevisualstimulation,
