




版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领
文档简介
1、使用一次性塑料袋的危害Againstthe use of disposable plastic bags 塑料袋的确给我们生活带来了方便,但是这一时的方便却带来长久的危害。 Plastic bags do give us life to bring the convenience, but it a convenient but lasting harm. 塑料袋回收价值较低,在使用过程中除了散落在城市街道、旅游区、水体中、公路和铁路两侧造成“视觉污染”污染外,它还存在着潜在的危害。 塑料结构稳定,不易被天然微生物菌降解,在自然环境中长期不分离。这就意味着废塑料垃圾如不加以回收,将在环境中变成
2、污染物永久存在并不断累积,会对环境造成极大危害。 Lower the value of recycling plastic bags,in addition to the use of scatteredin the city streets,tourist areas,water,railway and highwayon both sides"visual pollution" caused by pollution,it also potentially harmful.Plastic structuralstability,not easy to be natura
3、l microbial degradation,the natural environment is not a longseparation.This means that the wasteplastic garbage if not recovered,will become apermanent presence ofcontaminants in theenvironmentand continue to accumulate,will causegreat harm to the environment.使用一次性塑料袋或发泡塑料饭盒不仅严重影响人们的身体健康,还对环境造成严重的污
4、染。具体表现为 The use of disposable plastic bags or plastic foam lunch boxes not only seriously affects people's health, but also cause serious pollution to the environment. Specific performance一方面,对人体的影响:对于早点、熟食、蔬菜、水果、小吃每天,当我们把各类食品装入塑料食品袋或一次性餐盒时,也许你还没有意识到,健康的危险正在悄然降临。前不久,有关部门对某市的早点摊和熟食品小店使用的塑料食品袋和一次性
5、餐盒的卫生状况开展了一次调查,结果发现,送检样品蒸发残渣均不符合健康标准。据健康专家介绍,蒸发残渣指标能反映出塑料食品袋和一次性餐盒在使用过程中遇醋、酒、油等液体时析出残渣、重金属的多少,而残渣和重金属的存在会对人体健康产生不良影响,特别是对处于成长期的儿童和青少年的健康影响会更大。再有,残渣还会对食品的色、香、味造成直接影响。另外,一次性塑料袋还会释放有毒气体污染食品,长期食用一次性塑料袋包装的食物易引发中毒。据了解,目前市面上用来包装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,对人体是有害的。其中有相当数量是利用垃圾站收购的废旧
6、塑料再生材料,且未经消毒,很可能含有大量病菌。On the one hand ,the impact on the human body:forbreakfast,cooked food,vegetables,fruits,snacks.Every day,when we putall kinds of foodin plasticfood bagsordisposable lunch box,you may not realize,healthdanger isquietly come.Not long ago,the relevant departments of thecityhealt
7、hbreakfast spreadand cooked foodshopuse plasticfoodbags and disposabletablewarecarried out asurvey,results showed that,the samplesdo notmeet the health standards ofevaporation residue.According to health experts,evaporation residueindex canreflect theplastic foodbags and disposablelunch boxin use pr
8、ocessinvinegar,wine,oil and otherliquidprecipitationof heavy metals,how muchresidue,andresidueand heavy metalspresence willhave a negative impact on human health,especially the healtheffects onalong-terminchildren and adolescentswill be greater.Again,a direct impactonthe residuewillfood color,fragra
9、nce,taste.In addition,disposable plastic bagswill release toxic gasespollutionfood,long-term consumption ofdisposableplastic bagsof foodis easy tocause poisoning.It is understood,materialscurrentlyused in food packagingplastic bags,are generallyof polyethylene and polypropylene,anddisposable plastic
10、 bagsarerecycledplasticsmade frompolyvinyl chloride and polystyrene,is harmful to human body.There are quite a number ofthe garbagestation acquisitionofwaste plastic recycling material,and withoutdisinfection,itmay contain a large number ofbacteria.有的生产厂家在加工一次性塑料袋的过程中还会加入一些有毒的稳定剂,这类塑料袋是绝对不能用于包装食品的。如
11、果用这类塑料袋盛装含油类食品及高温食物,塑料中的有害成分就会溶解到食品中,危害人们的身体健康。Some manufacturers have also added some toxic stabilizers in the process of disposable plastic bags, the plastic bag is absolutely can not be used for food packaging. If food and hot food containing oil filled with this kind of plastic bags, plastic har
12、mful ingredients will be dissolved into food, harm to people's health. 另一方面,对环境的影响:1、两百年才能腐烂。塑料袋埋在地下要经过大约两百年的时间才能腐烂,会严重污染土壤;如果采取焚烧处理方式,则会产生有害烟尘和有毒气体,长期污染环境。On the other hand,the impact on the environment:1, two hundred years to decay. Plastic bags buried would take about two hundred years to rot
13、 in the ground, will be seriously polluted soil; if you take the incineration, will produce harmful fumes and toxic gases, long-term pollution of the environment.2、 降解塑料难降解。市场上常见的“降解塑料袋”,实际上只是在塑料原料中添加了淀粉,填埋后因为淀粉的发酵、细菌的分解,大块塑料袋会分解成细小甚至肉眼看不见的碎片。这是一种物理降解,并没有从根本上改变塑料产品的化学性质。2, the degradation of plastic
14、 refractory. The common market "degradable plastic bags", is actually in the plastic raw materials added starch, landfill after fermentation, bacteria because the decomposition of starch, large plastic bags into small pieces or even invisible to the naked eye. This is a kind of physical de
15、gradation, and no chemical change fundamentally plastic products.3、影响土壤的正常呼吸。塑料袋本身不是土壤和水体的基本物质之一,强行进入到土壤之后,由于它自身的不透气性,会影响到土壤内部热的传递和微生物的生长,从而改变土壤的特质。这些塑料袋经过长时间的累积,还会影响到农作物吸收养分和水分,导致农作物减产。3, affecting the normal respiration of soil. One of the basic material of plastic bags is not soil and water, forc
16、ed entry into the soil, due to non permeability of its own, will affect the internal heat transfer of soil and the growth of microorganisms, thereby changing the soil characteristics. These bags are accumulated over a long time, but also affect crops absorb nutrients and moisture, leading to crop pr
17、oduction.4、易造成动物误食。废弃在地面上和水面上的塑料袋,容易被动物当做食物吞入,塑料袋在动物肠胃里消化不了,易导致动物肌体损伤和死亡。4, easy to cause the animal eating. Abandoned on the ground and on the surface of the plastic bags, easy to be animal as food ingestion, plastic bags in the animal stomach digest, easily lead to animal body injury and death. 高分
18、作文版: Plastic bags do bring us convenience,But this is a convenient but lasting harm.The use of disposable plastic bags or plastic foam lunch boxes not only seriously affects people's health, but also cause serious pollution to the environment. Specific performance.Some manufacturers have also ad
19、ded some toxic stabilizers in the process of disposable plastic bags, the plastic bag is absolutely can not be used for food packaging. If food and hot food containing oil filled with this kind of plastic bags, plastic harmful ingredients will be dissolved into food, harm to people's health. On
20、the other hand,the impact on the environment: The common market "degradable plastic bags", is actually in the plastic raw materials added starch, landfill after fermentation, bacteria because the decomposition of starch, large plastic bags into small pieces or even invisible to the naked eye. This is a kind of physical degradation, and no chemical change fundamentally plastic products.One of the basic material of plastic bags is not soil and water, forced entry into the soil, due to non perm
温馨提示
- 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
- 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
- 5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
- 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
- 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
最新文档
- 网络管理员考试必知要点试题及答案
- 用户反馈的计算机二级VB试题与答案
- 软考网络管理员评估试题及答案合集
- 2025年软件设计师考试快速掌握技巧试题及答案
- 2025年不同文化对公司战略的挑战及试题及答案
- 未来公司的治理结构与风险控制探索试题及答案
- 行政法学考试常见知识点:试题及答案
- 计算机教程与编程实践试题及答案
- 2025租房合同协议书
- 网络架构所需技能分析试题及答案
- 附件1:肿瘤防治中心评审实施细则2024年修订版
- 委托书万能模板快来保存2024年
- 光伏电站物料清单模板
- 2024年四年级英语下册 Module 4 Things we enjoy Unit 12 The ugly duckling第2课时教案 牛津沪教版(三起)
- 中职教育二年级上学期《三工位隔离开关》教学课件
- 2024-2030年中国母乳低聚糖(HMO)行业发展形势与未来前景展望报告
- 江苏省江阴市江阴初级中学2023-2024学年中考三模英语试题含答案
- 新能源汽车技术专业《汽车构造》-课程标准
- 江苏省南京市鼓楼区2023-2024学年八年级下学期期末考试物理试题
- (高清版)JTG 3363-2019 公路桥涵地基与基础设计规范
- 安全生产重在提升执行力
评论
0/150
提交评论