刘亮亮回答:
1.BelgiumghamassulcatusghamassulcatuseventsinBelgiumislocatedinthestenosisinbasinin1930,on1December,thetemperature—5,turning,resultinginafactoryintheemissionofharmfulgasesandfluedustinthenear-Earth'satmospherearegatheringin3daysaftersomeone.itssymptomsare:chestpain,cough,shortnessofbreath,etc.,withinoneweekthereareover60peoplewerekilled,includingheartdisease,lungdiseaseinpatientswiththehighestmortality.atthesametime,therearemanylivestockslethals.theeventoccursduringtheSO2concentrationishigh,andmaycontainfluoride.hindsightthisopinion,asseveralharmfulgaseswithsootanddust3、4gossiypiichemotransmission.
2,theUnitedStateseventdonoradonoradreamamericansulcatus(PennsylvaniaStateinasmalltown.1948on26October—30heremostoftheareaaffectedbyanticyclonicinversetemperaturecontrol,and26—30daysofcontinuousfoggy,causeofairpollutantsintheatmosphereinthegathering.Duringthisperiod,alloverthetownof43%ofthepopulation,i.e.591successively--people,symptomsare:sorethroat,runnynose,thirst,velovitytherapeuticlanalyasisacid,tightness,cough,vomiting,diarrhea,andsoonsymptoms,death17people.ItisestimatedthataneventoccursduringnormalSO2concentration,anumberoftimesanddustparticles.analysesofSO2anditsproductsintheatmosphereofdustparticlesofengagementisdamagecausedbyfactors.propertyisthemaindamagecausedbySO2andchalcogenidesdostrobiton,aswellastheinteractionofproducts.
3,LondonfogsmokeeventknownasalloftheUnitedKingdom,1952inLondonon5December—8datehasbeenshrouded.Duringthisperiodmanypeoplesufferingfromrespiratorydiseases,suddenlyitbookedLondonhospitals.fourdays,thenumberofdeathscomparedwiththeperennialanincreaseof4000people,witha45-year-oldkilledmorethanmostaboutisthenumberofdeathsofthreetimes,1-year-oldfollowingthedeathofamuchlowerthanusualdoubles.incidentsof1week,becauseofbronchitis,tuberculosis,coronaryheartdisease,heartfailureisthenumberofdeathsrespectivelyforpeacetimesimilardiseasedeaths9.threetimes,2.4times,5.5times,2.eighttimes,duetopneumoniaandlungcancer,fluandotherpatintdeathsaremuchlowerthanusualmultiplies.Aftertwomonthsandthereare8000deaths.peopleinthisconnection,envent,London,believesthatthiswasalotofcoalconsumption.eventsduringthehighestconcentrationofdustparticlesupto4.46water,usually10times,SO2concentrationsofuptosixtimestheusualindensefoginthespecificconditions,thesmokeofoxidationtopromoteSO2Fe2O3SO3,formingH2SO4,andcoagulableinthedust,formingthepurified,becomeakiller