【(BBCNewsApril18)AllflightsinandoutoftheUKandseveralotherEuropeancountrieshavebeencancelledasashfromavolcaniceruptioninIcelandmovessouth．Upto4000flightsarebeing】

　　(BBCNewsApril18)AllflightsinandoutoftheUKandseveralotherEuropeancountrieshavebeencancelledasashfromavolcaniceruptioninIcelandmovessouth．

　　Upto4000flightsarebeingcancelledwithairspaceclosedinNorwaySwedenFinlandandDenmarkamongothers．

　　TheUK’sairtrafficcontrolservice(Nats)saidnoflightswouldbeallowedinUKairspaceuntilatleast07∶00BSTonFridayforfearofenginedamage．

　　SafetygroupEurocontrolsaidtheproblemcouldlastfor48hours．

　　ThevolcanoisstilleruptingandthewinddirectionisexpectedtocontinuebringingcloudsintoUKandEuropeanairspaceforsometimetocome．

　　TheUK’sairspacerestrictionwastheworstinlivingmemoryaNatsspokesmansaid．Some600000peoplearethoughttohavebeenaffected．

　　Natssuggestedthattherestrictionswereunlikelytobelifted(解除)after07∶00sayingitwas“veryunlikelythatthesituationoverEnglandwillimproveintheforeseeablefuture”．

　　Passengerswereadvisedtocontacttheircarriersbeforetravelling．

　　TransportSecretaryLordAdonissaidhewas“closelymonitoringthesituation”andwouldbemeetingwithkeytransportofficialsonFridaymorning．

　　Expertshavewarnedthatthetinyparticlesofrockglassandsandcontainedintheashcloudfromthestill-eruptingvolcanocouldbesufficienttojamaircraftengines．

　　TheHealthProtectionAgencysaidtheashfromtheeruptiondidnotbringasignificantrisktopublichealthbecauseofitshighaltitude．

　　HowevertheBritishLungFoundationhaswarnedpeoplewithlungconditionstokeeptheirmedication(医疗护理)withthemasaprecautionarymeasure．

　　Thesearesomeoftheknock-oneffects：

　　●EurocontrolsaysGermanyismonitoringthesituationandconsideringpartialairspaceclosures．

　　●ThetwomainairportsinParisandmanyothersinthenorthofFranceareclosing．

　　●Thereisseveredisruption(崩溃)inFranceandSpainwhereallnorthboundflightsarecancelled．

　　●Natsisduetomakeanannouncementshortlyastothearrangement