overreducingagivenharmfulaverageperiod;effectsexposureonhumanindicatorhealth,towithbeattainedtheaim22.‘nationalreductionexposurereductiontarget’MemberreducingStateofthesetaveragefortheexposureshallreferenceofyearthemeanwithpopulationapercentage
theaimofawherepossibleharmfulovereffectsagivenonperiod;humanhealth,tobeattainedof23.‘urbanareasbackgroundlocations’shallmeanplacesinurban
generalwhereurbanlevelspopulation;arerepresentativeoftheexposureofthe24.‘oxidesingofnitrogen’shallmeanthesumofthevolumenitrogenrationitrogendioxide(ppbv)ofnitrogenmonoxide(nitricoxide)mix-anddioxideexpressed(µg/m3);inunitsofmassconcentrationof25.‘fixedsites,measurements’mineeitherobjectives;thelevelscontinuouslyshallmeaninaccordanceorbymeasurementstakenatfixed
withrandomtherelevantsampling,datatoqualitydeter-26.‘indicativemeetmeasurements’shallmeanmeasurementswhich
requireddataforqualityfixedmeasurements;
objectivesthatarelessstrictthanthose
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27.‘volatilepoundsmethane,fromorganicanthropogeniccompounds’and(VOC)biogenicshallmeansources,organicothercom-dantssunlight;byreactionsthatarecapablewithnitrogenofproducingoxidesphotochemicalthaninthepresenceoxi-of28.‘ozonetributeprecursorwhicharetolistedtheformationsubstances’meanssubstanceswhichcon-inAnnexX.
ofground-levelozone,someofArticle3Responsibilities
MemberpetentauthoritiesStatesshallanddesignatebodiesresponsibleattheappropriateforthelevelsfollowing:thecom-(a)assessmentofambientairquality;
(b)approvalworksandoflaboratories);measurementsystems(methods,equipment,net-(c)ensuringtheaccuracyofmeasurements;(d)analysisofassessmentmethods;
(e)coordinationassuranceontheirterritoryCommission;programmesareifbeingCommunity-wideorganisedbyquality
the(f)cooperationCommission.withtheotherMemberStatesandthe
Whereplywithrelevant,SectiontheCofcompetentAnnexI.
authoritiesandbodiesshallcom-Article4
Establishmentofzonesandagglomerations
MemberoutStatesshallestablishzonesmenttheirshallterritory.becarriedAiroutqualityinallassessmentandagglomerationszonesandandagglomerations.
airqualitythrough-manage-CHAPTERII
ASSESSMENTOFAMBIENTAIRQUALITY
SECTION1
dioxide,Assessmentnitrogenofambientmatter,lead,dioxidebenzeneandairqualityoxidesinandcarbonofrelationnitrogen,tomonoxide
particulate
sulphurArticle5Assessmentregime
1.tionTheupperandlowerassessmentthresholdsideAofAnnexIIshallapplytosulphurdioxide,specifiednitrogenindiox-Sec-lead,andbenzeneoxidesandofnitrogen,carbonmonoxide.
particulatematter(PM10andPM2,5),Eachzoneandagglomerationshallbeclassifiedinrelationtothoseassessmentthresholds.
2.Theclassificationreferredtoinparagraph1shallbereviewedatleasteveryfiveyearsinaccordancewiththeproce-durelaiddowninSectionBofAnnexII.
However,classificationsshallbereviewedmorefrequentlyintheeventofsignificantchangesinactivitiesrelevanttotheambientconcentrationsofsulphurdioxide,nitrogendioxideor,whererel-evant,oxidesofnitrogen,particulatematter(PM10,PMorcarbonmonoxide.
2,5),lead,benzeneArticle6Assessmentcriteria
1.MemberStatesshallassessambientairqualitywithrespecttothepollutantsreferredtoinArticle5inalltheirzonesandagglomerations,inaccordancewiththecriterialaiddowninpara-graphs2,3and4ofthisArticleandinaccordancewiththecri-terialaiddowninAnnexIII.
2.Inallzonesandagglomerationswherethelevelofpollut-antsreferredtoinparagraph1exceedstheupperassessmentthresholdshallsurementsbeusedestablishedtoassessforthethoseambientpollutants,airquality.fixedThosemeasurementsfixedmea-indicativespatialdistributionmeasurementsmaybesupplementedofthetoambientprovidebymodellingairadequatetechniquesand/orquality.
informationonthe3.antsInallzonesthresholdreferredmeasurementsestablishedtoinandparagraphagglomerationsforthose1wherethelevelofpollut-pollutants,isbelowathecombinationupperassessmentofsurementsmayandbeusedmodellingtoassesstechniquestheambientand/orairindicativefixedquality.mea-4.antsInallzonesandagglomerationswherethelevelthresholdreferredtoinparagraph1isbelowthelowerassessmentofpollut-ortheobjective-estimationestablishedforassessmentoftheambienttechniquesthosepollutants,airquality.
orbothmodellingshallbesufficienttechniquesfor5.3tionsandIn4,additionmeasurementstotheassessmentsshallbereferredtoinparagraphs2,posesawayconcentrationofproviding,fromsignificantasaminimum,sourcesmade,informationofatairruralpollution,backgroundloca-onthefortotalthepur-particulateconductedmatterandusingthe(PMthechemicalspeciationconcentrationsofmassfinefollowing2,5)onancriteria:
annualaveragebasisandshallbe(a)onesamplingpointshallbeinstalledevery100000km2;(b)eachtionMemberStateshallsetupatleastonemeasuringsta-uprelevantoneormay,orseveralbyagreementwithadjoiningMemberStates,setresolution;
neighbouringcommonzones,measuringtoachievestations,thenecessarycoveringspatialthe
ambient air quality and cleaner air for Europe(2008-50-EC)欧盟空气质量标准法案(2008-50-EC)