一次性塑料袋的危害

1、使用一次性塑料袋的危害Againsttheuseofdisposableplasticbags塑料袋的確給我們生活帶來了方便，但是這一時的方便卻帶來長久的危害。Plasticbagsdogiveuslifetobringtheconvenience,butitaconvenientbutlastingharm.塑料袋回收價值較低，在使用過程中除了散落在城市街道、旅游區(qū)、水體中、公路和鐵路兩側(cè)造成視覺污染”污染外，它還存在著潛在的危害。塑料結(jié)構(gòu)穩(wěn)定，不易被天然微生物菌降解，在自然環(huán)境中長期不分離。這就意味著廢塑料垃圾如不加以回收，將在環(huán)境中變成污染物永久存在并不斷累積，會對環(huán)境造成極大危害。Lo

2、werthevalueofrecyclingplasticbags,inadditiontotheuseofscatteredinthecitystreets,touristareas,water,railwayandhighwayonbothsidesvisualpollutioncausedbypollution,italsopotentiallyharmful.Plasticstructuralstability,noteasytobenaturalmicrobialdegradation,thenaturalenvironmentisnotalongseparation.Thismea

3、nsthatthewasteplasticgarbageifnotrecovered,willbecomeapermanentpresenceofcontaminantsintheenvironmentandcontinuetoaccumulate,willcausegreatharmtotheenvironment.的身體健康，還對環(huán)境造成嚴(yán)重的污染。具體表現(xiàn)為Theuseofdisposableplasticbagsorplasticfoamlunchboxesnotonlyseriouslyaffectspeopleshealth,butalsocauseseriouspollution

4、totheenvironment.Specificperformance一方面， 對人體的影響： 對于早點、 熟食、 蔬菜、 水果、 小吃每天， 當(dāng)我們把各類食品裝入塑料食品袋或一次性餐盒時， 也許你還沒有意識到，健康的危險正在悄然降臨。前不久，有關(guān)部門對某市的早點攤和熟食品小店使用的塑料食品袋和一次性餐盒的衛(wèi)生狀況開展了一次調(diào)查，結(jié)果發(fā)現(xiàn)，送檢樣品蒸發(fā)殘渣均不符合健康標(biāo)準(zhǔn)。據(jù)健康專家介紹， 蒸發(fā)殘渣指標(biāo)能反映由塑料食品袋和一次性餐盒在使用過程中遇醋、酒、油等液體時析由殘渣、重金屬的多少，而殘渣和重金屬的存在會對人體健康產(chǎn)生不良影響， 特別是對處于成長期的兒童和青少年的健康影響會更大。再有，殘

5、渣還會對食品的色、香、味造成直接影響。另外，一次性塑料袋還會釋放有毒氣體污染食品，長期食用一次性塑料袋包裝的食物易引發(fā)中毒。 據(jù)了解， 目前市面上用來包裝食品的塑料袋的制造材料， 一般都是聚乙烯和聚丙烯， 而一次性塑料袋大多是聚氯乙烯和聚苯乙烯制成的再生塑料制品， 對人體是有害的。其中有相當(dāng)數(shù)量是利用垃圾站收購的廢舊塑料再生材料，且未經(jīng)消毒，很可能含有大量病菌。Ontheonehand,theimpactonthehumanbody:forbreakfast,cookedfood,vegetables,fruits,snacksEveryday,whenweputallkindsoffoodi

6、nplasticfoodbagsordisposablelunchbox,youmaynotrealize,healthdangerisquietlycome.Notlongago,therelevantdepartmentsofthecityhealthbreakfastspreadandcookedfoodshopuseplasticfoodbagsanddisposabletablewarecarriedoutasurvey,resultsshowedthat,thesamplesdonotmeetthehealthstandardsofevaporationresidue.Accord

7、ingtohealthexperts,evaporationresidueindexcanreflecttheplasticfoodbagsanddisposablelunchboxinuseprocessinvinegar,wine,oilandotherliquidprecipitationofheavymetals,howmuchresidue,andresidueandheavymetalspresencewillhaveanegativeimpactonhumanhealth,especiallythehealtheffectsonalong-terminchildrenandado

8、lescentswillbegreater.Again,adirectimpactontheresiduewillfoodcolor,fragrance,taste.Inaddition,disposableplasticbagswillreleasetoxicgasespollutionfood,long-termconsumptionofdisposableplasticbagsoffoodiseasytocausepoisoning.Itisunderstood,materialscurrentlyusedinfoodpackagingplasticbags,aregenerallyof

9、polyethyleneandpolypropylene,anddisposableplasticbagsarerecycledplasticsmadefrompolyvinylchlorideandpolystyrene,isharmfultohumanbody.Therearequiteanumberofthegarbagestationacquisitionofwasteplasticrecyclingmaterial,andwithoutdisinfection,itmaycontainalargenumberofbacteria.有的生產(chǎn)廠家在加工一次性塑料袋的過程中還會加入一些有毒

10、的穩(wěn)定劑，這類塑料袋是絕對不能用于包裝食品的。如果用這類塑料袋盛裝含油類食品及高溫食物，塑料中的有害成分就會溶解到食品中，危害人們的身體健康。Somemanufacturershavealsoaddedsometoxicstabilizersintheprocessofdisposableplasticbags,theplasticbagisabsolutelycannotbeusedforfoodpackaging.Iffoodandhotfoodcontainingoilfilledwiththiskindofplasticbags,plasticharmfulingredientswil

11、lbedissolvedintofood,harmtopeopleshealth.另一方面，對環(huán)境的影響：1、兩百年才能腐爛。塑料袋埋在地下要經(jīng)過大約兩百年的時間才能腐爛，會嚴(yán)重污染土壤；如果采取焚燒處理方式，則會產(chǎn)生有害煙塵和有毒氣體，長期污染環(huán)境。Ontheotherhand,theimpactontheenvironment:1, twohundredyearstodecay.Plasticbagsburiedwouldtakeabouttwohundredyearstorotintheground,willbeseriouslypollutedsoil;ifyoutaketheinci

12、neration,willproduceharmfulfumesandtoxicgases,long-termpollutionoftheenvironment.2、降解塑料難降解。市場上常見的降解塑料袋”，實際上只是在塑料原料中添加了淀粉，填埋后因為淀粉的發(fā)醉、細(xì)菌的分解，大塊塑料袋會分解成細(xì)小甚至肉眼看不見的碎片。這是一種物理降解，并沒有從根本上改變塑料產(chǎn)品的化學(xué)性質(zhì)。2, thedegradationofplasticrefractory.Thecommonmarketdegradableplasticbags,isactuallyintheplasticrawmaterialsadde

13、dstarch,landfillafterfermentation,bacteriabecausethedecompositionofstarch,largeplasticbagsintosmallpiecesoreveninvisibletothenakedeye.Thisisakindofphysicaldegradation,andnochemicalchangefundamentallyplasticproducts.3、 影響土壤的正常呼吸。 塑料袋本身不是土壤和水體的基本物質(zhì)之一，強(qiáng)行進(jìn)入到土壤之后，由于它自身的不透氣性，會影響到土壤內(nèi)部熱的傳遞和微生物的生長，從而改變土壤的特質(zhì)。

14、這些塑料袋經(jīng)過長時間的累積，還會影響到農(nóng)作物吸收養(yǎng)分和水分，導(dǎo)致農(nóng)作物減產(chǎn)。3, affectingthenormalrespirationofsoil.Oneofthebasicmaterialofplasticbagsisnotsoilandwater,forcedentryintothesoil,duetononpermeabilityofitsown,willaffecttheinternalheattransferofsoilandthegrowthofmicroorganisms,therebychangingthesoilcharacteristics.Thesebagsarea

15、ccumulatedoveralongtime,butalsoaffectcropsabsorbnutrientsandmoisture,leadingtocropproduction.4、易造成動物誤食。廢棄在地面上和水面上的塑料袋，容易被動物當(dāng)做食物吞入，塑料袋在動物腸胃里消化不了，易導(dǎo)致動物肌體損傷和死亡。4, easytocausetheanimaleating.Abandonedonthegroundandonthesurfaceoftheplasticbags,easytobeanimalasfoodingestion,plasticbagsintheanimalstomachdi

16、gest,easilyleadtoanimalbodyinjuryanddeath.Plasticbagsdobringusconvenience,Butthisisaconvenientbutlastingharm.Theuseofdisposableplasticbagsorplasticfoamlunchboxesnotonlyseriouslyaffectspeopleshealth,butalsocauseseriouspollutiontotheenvironment.Specificperformance.Somemanufacturershavealsoaddedsometox

17、icstabilizersintheprocessofdisposableplasticbags,theplasticbagisabsolutelycannotbeusedforfoodpackaging.Iffoodandhotfoodcontainingoilfilledwiththiskindofplasticbags,plasticharmfulingredientswillbedissolvedintofood,harmtopeopleshealth.Ontheotherhand,theimpactontheenvironment:Thecommonmarketdegradablep

18、lasticbags,isactuallyintheplasticrawmaterialsaddedstarch,landfillafterfermentation,bacteriabecausethedecompositionofstarch,largeplasticbagsintosmallpiecesoreveninvisibletothenakedeye.Thisisakindofphysicaldegradation,andnochemicalchangefundamentallyplasticproducts.Oneofthebasicmaterialofplasticbagsisnotsoilandwater,forcedentry