ThisphototakenonFeb.20,2024fromtheroofofDuomoCathedralshowsaviewofMilan,Italy.TemporaryrestrictionswereenforcedinnorthernItaly,especiallytheLombardyregion,onTuesdayinresponsetopersistenthighlevelsofairpollution.(Xinhua/LiJing)ROME,Feb.20(Xinhua)--TemporaryrestrictionswereenforcedinnorthernItaly,especiallytheLombardyregion,onTuesdayinresponsetopersistenthighlevelsofairpollution.ThesemeasureswereinitiatedafterairqualityindicatorsexceededthelimitsstipulatedbydomesticandEuropeanlegislationforparticulatematter(likeparticleswithadiameterof10micrometersorless,orPM10)andotherpollutantsforfourconsecutivedays,regionalauthoritiessaid.ALevel-1banenteredintoforceineightprovincesofLombardy,includingtheregionalcapitalMilan,earlyonTuesday.ItprohibitsallEuro0andEuro1vehicles,aswellasEuro2,Euro3,andEuro4dieselvehiclesinurbanareaswithmorethan30,000inhabitantsfrom7:30a.m.to7:30p.m.(from0630GMTto1830GMT).TheEuroemissionsstandards,labeledfromEuro0toEuro6,aresetbytheEuropeanUniontolimittheamountofexhaustemissionsofnewly-soldvehicles.Theyspecifythemaximumlevelsofharmfulgasesandparticlesthatvehiclescanreleaseintotheenvironment.Additionally,restrictionsinLombardyfurtherprohibitheatinghomesabove19degreesCelsius,usingwoodgeneratorsfordomesticheating,andspreadingfertilizersandslurryonlandinfarms.AuthoritiesinthewesternPiedmontregionalsoimposedsimilarrestrictionsondieselvehiclesfromEuro3toEuro5,whichwerebannedinTurinandsurroundingareasuntilatleastWednesday.ThesemeasureswereadoptedbasedonairpollutiondatacollectedacrossItaly.AccordingtodatareleasedonTuesdaybyIQAir,aSwisscompanyprovidingairqualitymonitoring,thePM2.5concentrationinMilancurrentlyexceedstheWorldHealthOrganization'sannualairqualityguidelinevalsuebyabout20times,makingitoneofthemostpollutedcitiesintheworldthesedays.ThisphototakenonFeb.20,2024fromtheroofofDuomoCathedralshowsaviewofsunsetinMilan,Italy.TemporaryrestrictionswereenforcedinnorthernItaly,especiallytheLombardyregion,onTuesdayinresponsetopersistenthighlevelsofairpollution.(Xinhua/LiJing)ThisphototakenonFeb.20,2024fromtheroofofDuomoCathedralshowsaviewofMilan,Italy.TemporaryrestrictionswereenforcedinnorthernItaly,especiallytheLombardyregion,onTuesdayinresponsetopersistenthighlevelsofairpollution.(Xinhua/LiJing)ThisphototakenonFeb.20,2024fromtheroofofDuomoCathedralshowsaviewofMilan,Italy.TemporaryrestrictionswereenforcedinnorthernItaly,especiallytheLombardyregion,onTuesdayinresponsetopersistenthighlevelsofairpollution.(Xinhua/LiJing)Editor:DisclaimerTheviewsandopinionsexpressedinthisarticlearethoseoftheauthor's,GMW.cnmakesnorepresentationsastoaccuracy,suitability,orvalidityofanyinformationonthissiteandwillnotbeliableforanyerrors,omissions,ordelaysinthisinformation.