ambient air quality and cleaner air for Europe(2008-50-EC)(13)

60%ofwintercriticallevel(12µg/m3)

40%ofwintercriticallevel(8µg/m3)

Lowerassessmentthreshold

2.Nitrogendioxideandoxidesofnitrogen

Annualcriticallevelfortheprotectionofvegetationandnaturalecosystems(NOx)

Hourlylimitvaluefortheprotectionof

humanhealth(NO2)

Annuallimitvaluefortheprotectionofhumanhealth(NO2)

Upperassessmentthreshold

70%oflimitvalue(140µg/m3,nottobeexceededmorethan18timesinanycalendaryear)

50%oflimitvalue(100µg/m3,nottobeexceededmorethan18timesinanycalendaryear)

80%oflimitvalue(32µg/m3)65%oflimitvalue(26µg/m3)

80%ofcriticallevel(24µg/m3)65%ofcriticallevel(19,5µg/m3)

Lowerassessmentthreshold

3.Particulatematter(PM10/PM2,5)

AnnualaveragePM2,5(1)

24-houraveragePM10AnnualaveragePM10

Upperassessmentthreshold

70%oflimitvalue(35µg/m3,nottobeexceededmorethan35timesinanycalendaryear)

50%oflimitvalue(25µg/m3,nottobeexceededmorethan35timesinanycalendaryear)

70%oflimitvalue(28µg/m3)50%oflimitvalue(20µg/m3)

70%oflimitvalue(17µg/m3)50%oflimitvalue(12µg/m3)

Lowerassessmentthreshold

(1)TheupperassessmentthresholdandthelowerassessmentthresholdforPM2,5donotapplytothemeasurementstoassesscom-pliancewiththePM2,5exposurereductiontargetfortheprotectionofhumanhealth.

4.Lead

Annualaverage

UpperassessmentthresholdLowerassessmentthreshold

70%oflimitvalue(0,35µg/m3)50%oflimitvalue(0,25µg/m3)

ambient air quality and cleaner air for Europe(2008-50-EC)欧盟空气质量标准法案(2008-50-EC)

11.6.2008EN5.Benzene

OfficialJournaloftheEuropeanUnionL152/17

Annualaverage

UpperassessmentthresholdLowerassessmentthreshold

70%oflimitvalue(3,5µg/m3)40%oflimitvalue(2µg/m3)

6.Carbonmonoxide

Eight-houraverage

UpperassessmentthresholdLowerassessmentthreshold

70%oflimitvalue(7mg/m3)50%oflimitvalue(5mg/m3)

B.Determinationofexceedancesofupperandlowerassessmentthresholds

Exceedancesofupperandlowerassessmentthresholdsshallbedeterminedonthebasisofconcentrationsduringthepreviousfiveyearswheresufficientdataareavailable.Anassessmentthresholdshallbedeemedtohavebeenexceededifithasbeenexceededduringatleastthreeseparateyearsoutofthosepreviousfiveyears.

Wherefewerthanfiveyears’dataareavailable,MemberStatesmaycombinemeasurementcampaignsofshortdurationduringtheperiodoftheyearandatlocationslikelytobetypicalofthehighestpollutionlevelswithresultsobtainedfrominformationfromemissioninventoriesandmodellingtodetermineexceedancesoftheupperandlowerassess-mentthresholds.

ambient air quality and cleaner air for Europe(2008-50-EC)欧盟空气质量标准法案(2008-50-EC)

L152/18ENOfficialJournaloftheEuropeanUnion11.6.2008

ANNEXIII

Assessmentofambientairqualityandlocationofsamplingpointsforthemeasurementofsulphurdioxide,

nitrogendioxideandoxidesofnitrogen,particulatematter(PM10andPM2,5),lead,benzene

andcarbonmonoxideinambientair

A.General

Ambientairqualityshallbeassessedinallzonesandagglomerationsinaccordancewiththefollowingcriteria:1.Ambientairqualityshallbeassessedatalllocationsexceptthoselistedinparagraph2,inaccordancewiththecriteria

pliancewiththelimitvaluesdirectedattheprotectionofhumanhealthshallnotbeassessedatthefollowing

locations:

(a)anylocationssituatedwithinareaswheremembersofthepublicdonothaveaccessandthereisnofixedhabitation;(b)inaccordancewithArticle2(1),onfactorypremisesoratindustrialinstallationstowhichallrelevantprovisionsconcerninghealthandsafetyatworkapply;(c)onthecarriagewayofroads;andonthecentralreservationsofroadsexceptwherethereisnormallypedestrianaccesstothecentralreservation.

B.Macroscalesitingofsamplingpoints1.Protectionofhumanhealth

(a)Samplingpointsdirectedattheprotectionofhumanhealthshallbesitedinsuchawayastoprovidedataonthefollowing:—

theareaswithinzonesandagglomerationswherethehighestconcentrationsoccurtowhichthepopulationislikelytobedirectlyorindirectlyexposedforaperiodwhichissignificantinrelationtotheaveragingperiodofthelimitvalue(s),

levelsinotherareaswithinthezonesandagglomerationswhicharerepresentativeoftheexposureofthegen-eralpopulation,

—

(b)Samplingpointsshallingeneralbesitedinsuchawayastoavoidmeasuringverysmallmicro-environmentsintheirimmediatevicinity,whichmeansthatasamplingpointmustbesitedinsuchawaythattheairsampledisrepresentativeofairqualityforastreetsegmentnolessthan100mlengthattraffic-orientatedsitesandatleast250m×250matindustrialsites,wherefeasible;(c)Urbanbackgroundlocationsshallbelocatedsothattheirpollutionlevelisinfluencedbytheintegratedcontribu-tionfromallsourcesupwindofthestation.Thepollutionlevelshouldnotbedominatedbyasinglesourceunlesssuchasituationistypicalforalargerurbanarea.Thosesamplingpointsshall,asageneralrule,berepresentativeforseveralsquarekilometres;(d)Wheretheobjectiveistoassessruralbackgroundlevels,thesamplingpointshallnotbeinfluencedbyagglomera-tionsorindustrialsitesinitsvicinity,i.e.sitescloserthanfivekilometres;(e)Wherecontributionsfromindustrialsourcesaretobeassessed,atleastonesamplingpointshallbeinstalleddown-windofthesourceinthenearestresidentialarea.Wherethebackgroundconcentrationisnotknown,anadditionalsamplingpointshallbesituatedwithinthemainwinddirection;(f)Samplingpointsshall,wherepossible,alsoberepresentativeofsimilarlocationsnotintheirimmediatevicinity;(g)Accountshallbetakenoftheneedtolocatesamplingpointsonislandswherethatisnecessaryfortheprotectionofhumanhealth.

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