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简介：Longlongago,ourworldwasverybeautiful,thereweretrees,flowers,rivers...theywereverycleanandtidy.Butnow,thehillsarenrtgreen,theriversaren'tclean,thefishhasdied.Pollutionisbecomingmoreandmoreseriousallovertheworld.Wearelivinginapollutedenvironmentwhichisbadforourhealth.

简介：Lifetodayhasbroughtnewproblems.Asweknow,therearefourterriblepollutionsintheworld:waterpollution,noisepollution,airpol-lutionandrubbishpollution.Waterpollutionkillsourfishandpollutesourdrinkingwater.Noisepollutionmakesustalklouderandbecomeangrymoreeasily.Airpollutionmakesusholdourbreathlongerandbebadtoalllivingthingsintheworld.Rubbishpollutionoftenmakesourlivingenvironmentmuchdirtier.ButIthinkthattheInternetpollutionisanothernewpollutionintheworld.

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简介：AfieldexperimentwasconductedtostudytheeffectsofPb,Cd,Cu,ZnandAscoexistinginredsoilongrowthofrice(OryzasativaL.)mungbean(Vignarabiata(Linn.)Wilczek),alfalfa(MedicagosativaL.),Slashpine(PinuselliottiiEngelm.)andaspen(PopulusL.).Resultsshowedthatrice,mungbeanandalfalfaweresignificantlyinfluencedbycombinedpoollutionoftheheavymetals,thecontentsofPb,CdandAsinricegrainsgreatlyexceededtheNationalStandardsforFoodHygieneofChina.Heavymetalsatahighconcentrationseriouslyretardedgrowthofmungbeanandalfalfa,butnotsoobviouslywithslashpineandaspen.Thecompositeindexissuggestedforevaluatingtherelativityofcombinedpollutionwithheavymetalsinsoil.

简介：WENXiangcaiisonthestaffofChinaNationalEnvironmentalMonitoringCenter.Herjobiscollectingandaggregatingdata,whichisgreatforher-she’sascientist.ButinrecentyearsWenfeelslikeshe’sturnedintosomethingofamediapersonality.Sheisaskedquestionsonavarietyoftopicswhensheattendsconferences,andsheisofteninterviewedbyjournalistsforherexpertopinion.AsenvironmentalconsciousnesshasgrowninChinaoverthepastfewyears,moreandmorepeoplewanttoknow

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简介：TheatmosphericmercurypollutioninBeijingisaseriousproblem.Atmosphericmercuryhasthreesources:naturalemission,anthropogenicemissionandpreviouslydepositedmercuryreemissionorrecycling,composingelementalmercury,divalentmercuryandparticulate-phasemercury.ManystudiesshowedthatmercuryinBeijing'sairwashigherthanthegenerallevelofmercuryconcentrationintheatmosphere.Mercuryemissionsourceswerediscussed.Industrialemissions,coalburning,vehicleexhaustemissionsandwasteincinerationwerethoughttobethemainsourcesofatmosphericmercurypollutioninBeijing.AndalsometeorologyhasaneffectonatmosphericmercuryconcentrationinBeijing.Measureshavebeentakentocontroltheemissionofmercuryintotheairinrecentyears.

简介：在经济与文明日益发展的今天，环境污染被全世界人们所关注，生存环境的健康与洁净与我们每一个人的生命都息息相关，如何治理环境污染，保护良好的生存空间，已经迫在眉捷，看看下文的中学生朋友们又是如何看待这一现象的吧！

简介：Thisarticlegivesareviewonheavymetalpollutionpreventionandcontrol,anditalsodiscussesheavymetalpollutantdischarge,predictionandevaluationofenvironmentalimpact,andpollutionpreventionandmonitoring.

简介：Metalpollutioninaquaticecosystemsisofimmenseimportance.Undervariousenvironmentcircumstances,themetalcontentsofsedimentscanenterintotheoverlyingwaterbodyleadingtoseveretoxicity.ThisstudyaimstodeterminemetalconcentrationsinsedimentsofAnzaliInternationalWetlandinIran.Chemicalpartitioningmethodisusedtodeterminetheportionofanthropogenicpollutionandthemobilitypotentialofeachmetal.Theintensityofmetalpollutioninsedimentsofthewetlandisassessedusingthreereliableindices.TheresultsofchemicalpartitioningrevealthatcadmiumbearthehighestriskofbeingreleasedintotheaquaticenvironmentandhighamountofmanganeseinsulfidebondphaseimpliestheinitiationofredoxstateinaquaticenvironmentoftheAnzaliWetland.TheresultsofchemicalpartitioningstudiesshowthatPb,Cd,MnandAshavethehighestanthropogenicportion.Clusteranalysisalsoconfirmstheresultsofchemicalpartitioningandindicatesthatthementionedmetalscanbeoriginatedfromanthropogenicsources.Sedimentpollutionindices,including,I_geo,I_POLL,andm-ERM-Qrevealthatmetalsareintherangeoflowtomoderatepollutionandalsoshowthatthehighestmetalpollutionisintheeasternandcentralpartsofthewetland.Thiscanbeascribedtoriverswhicharetherecipientofindustrial,agriculturalandmunicipalwastewatersandflowintothesepartsofthewetland.

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简介：1.MainachievementsofenvironmentalprotectionFrom1987to1994,withdoublingoftheinstalledgeneratingcapacity,thecoalconsumptionofpowerplantsdoubledaswell.Powerindustryhasbeenfacingthechallengefromenvironmentalprotection.Inordertopromotethecoordinateddevelopmentofpowerindustryandenvironmentalprotection,powersector:

简介：这篇论文与污染学习一个随机的内长的生长模型。Itintroduces政府开销和外长的污染消退技术到消除污染并且证明在适当平衡条件下面，主要经济索引(包括经济生长率，最佳的政府开销率)在集中地计划的经济和分散的经济，罐头被模型的参数特别地表示。Theoptimal税政策被分析，并且最佳的污染被导出。

简介：ｏｒｅＥｆｏｒｔｓｔｏＣｏｎｔｒｏｌＰｏｌｕｔｉｏｎｏｆｔｈｅＨｕａｉｈｅＲｉｖｅｒＴｈｅＧｏｖｅｒｎｍｅｎｔｏｆＡｎｈｕｉＰｒｏｖｉｎｃｅｈａｓｔａｋｅｎｍｏｒｅｅｆｅｃｔｉｖｅｍｅａｓｕｒｅｓｔｏｃｏｎｔｒｏｌｐｏｌｕｔｉｏｎｏｆｔｈｅＨｕａｉｈ...

简介：Thefirecauseswaterpollution,airpollutionandtoxicgaspollutiontooursurroundingenvironment,anditseriouslyaffectsourlivingenvironment.People’sawarenessofenvironmentalprotectionisincreasingyearbyyear,andenvironmentalpollutioncausedbythefireisalsobeingcontrolled.Thisarticlebrieflyintroducesthefireaccident’simpactontheenvironment,thesystematicanalysisofthefireaccidentinthesourceofpollutionanditsharm.Combinedwiththeexistingwayoffirefightingandrescuefireaccident,thepollutioncontrolmethodisproposed.

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简介：AbstractThere is considerable epidemiological evidence indicating that air pollution has adverse effects on human health and is closely related to respiratory diseases, including chronic obstructive pulmonary disease (COPD). These effects, which can be divided into short- and long-term effects, can manifest as an exacerbation of existing symptoms, impaired lung function, and increased hospitalization and mortality rates. Long-term exposure to air with a high concentration of pollutants may also increase the incidence of COPD. The combined effects of different pollutants may become more complex in the future; hence, there is a need for more intensive research on specific at-risk populations, and formulating corresponding protective strategies is crucial. We aimed to review the epidemiological evidence on the effect of air pollution on COPD, the possible pathophysiological mechanisms underlying this effect, as well as protective measures against the effects of air pollutants in patients with COPD.

简介：Thehighratioconcentrationhydroxylsolutionisproducedbystrongdischarge,andappliedtothepreventionofinvasivespeciesinshipballastwaterandredtide.Thispaperintroducestheplasmaprocessofhydroxylradicalproduction,theproductionprocessofhighratiohydroxylsolution,andtheapplicationtotreatingballastwaterandredtide.