写雾霾天气的英语作文(双语)
详细内容
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Asthesayinggoes"qiudongsmogknifetokill".Wecanseeandcatch"smog"actuallyhavebiggerinfluenceonthebody,especiallythehighincidenceofrespiratoryandcardiovascularandcerebrovasculardiseasesintheelderlygroup.
1.Theeffectsontherespiratorysystem.Hazepositionisveryplicated,includinghundredsofatmospherihemistryparticulatematter.Whichisbadforyourhealthmainlyaerosolparticleslessthan10micronsindiameter,suchasmineralparticles,seasalt,sulfate,nitrate,anicaerosolparticles,fuelandcarexhaust,etc,itcandirectlyenterandadhesioninthehumanrespiratorytractandalveoli.Especiallythesubmicronparticlesaredepositedonupperandlowerrespiratorytractandalveolar,causesthediseasesuchastheacuterhinitisandacutebronchitis.Forobstructivebronchusasthma,chronicbronchitis,emphysemaandchronicrespiratorydiseasessuchaschronicobstructivepulmonarydiseasepatients,hazeweathercanmaketheillnessacuteoracuteexacerbation.Ifthiskindofenvironmentwillcauselungcancerforalongtime.
2.Theeffectsonthecardiovascularsystem.Hazeweatherpollutantsintheair,airpressureislow,easytoinduceacutecardiovasculardisease.Suchasheavyfog,themoisturecontentisveryhigh,ifpeopleinoutdooractivitiesandsports,thebody'ssweatisnoteasytodischarge,causepeoplebosomfrowsty,increasedbloodpressure.
3.Thefoghazeweathercanalsoresultincloseformationultravioletweakened,activityoftheinfectiouspathogenintheair,increaseofinfectiousdiseases.
4.Reducebecauseofthefogthesun,ultravioletirradiationinchildrenisinsufficient,inadequatevitaminDinthebodytogenerate,theabsorptionofcalciumsignificantlyreduce,seriouscancausericketsininfants,children'sgrowthtoslowdown.
5.Affectmentalhealth.Heavyfogweatherdepression,duetoweaklightandeasytoletapersonproducementallaziness,depression,andpessimism,encountersomethinggoeswrongandeveneasiertospinoutofcontrol.
6.Affectthetrafficsafety.Lowvisioninhazeweather,visibility,airqualityispoor,easytocausetrafficjams,trafficaidents.
常言道“秋冬毒雾杀人刀”。我们看得见、抓不着的“雾霾”其实对身体的影响较大,尤其是对心脑血管和呼吸系统疾病高发的老年人群体。
1.对呼吸系统的影响。霾的组成成分非常复杂,包括数百种大气化学颗粒物质。其中有害健康的主要是直径小于10微米的气溶胶粒子,如矿物颗粒物、海盐、硫酸盐、硝酸盐、有机气溶胶粒子、燃料和汽车废气等,它能直接进入并粘附在人体呼吸道和肺泡中。尤其是亚微米粒子会分别沉积于上、下呼吸道和肺泡中,引起急性鼻炎和急性支气管炎等病症。对于支气管哮喘、慢性支气管炎、阻塞性肺气肿和慢性阻塞性肺疾病等慢性呼吸系统疾病患者,雾霾天气可使病情急性发作或急性加重。如果长期处于这种环境还会诱发肺癌。
2.对心血管系统的影响。雾霾天气空气中污染物多,气压低,容易诱发心血管疾病的急性发作。比如雾大的时候,水汽含量非常的高,如果人们在户外活动和运动的话,人体的汗就不容易排出,造成人们胸闷、血压升高。
3.雾霾天气还可导致近地层紫外线的减弱,使空气中的传染性病菌的活性增强,传染病增多。
4.由于雾天日照减少,儿童紫外线照射不足,体内维生素D生成不足,对钙的吸收大大减少,严重的会引起婴儿佝偻病、儿童生长减慢。
5.影响心理健康。阴沉的雾霾天气由于光线较弱及导致的低气压,容易让人产生精神懒散、情绪低落及悲观情绪,遇到不顺心的事情甚至容易失控。
6.影响交通安全。出现霾天气时,视野能见度低,空气质量差,容易引起交通阻塞,发生交通事故。