Mary Allen
Cov pa luam yeeb yog tsim thaum ib yam dab tsi kub hnyiab. Cov pa luam yeeb muaj cov pa roj thiab cov khoom uas raug tshem tawm hauv nws. Yog li cov pa luam yeeb yog aerosol. Vim cov pa taws sov dua huab cua ib puag ncig, cov pa taws tuaj thaum tsis muaj cua thawb nws.
Cov pa luam yeeb muaj teeb meem rau tsiaj thiab tib neeg. Nws ua rau lub ntsws puas. Nws nyob ntawm seb cov pa taws los ntawm qhov twg. Cov pa taws los ntawm qhov hluav taws kub tsis tshua muaj teeb meem ntau dua li thaum hlawv cov yas. Nws kuj tseem nyob ntawm seb cov pa luam yeeb puas muaj zog heev lossis seb huab cua puas tau diluted zoo heev.
Cov pa luam yeeb tawm ib txheej dub rau ntawm phab ntsa sab hauv ntawm lub chimney, cov kua qaub. Koj yuav tsum tshem tawm ib ntus kom cov pa taws tuaj yeem khiav tau zoo. Yav dhau los, soot kuj tau siv los ua tus number case.
Cov pa luam yeeb yam twg muaj?
Nws nyob ntawm seb cov khoom twg raug hlawv. Lub luag haujlwm tseem ceeb kuj tau ua los ntawm seb puas muaj cov pa oxygen ntau nyob ze thaum nws raug hlawv. Piv txwv li, yog tias muaj cov pa oxygen txaus, carbon dioxide yuav ua tau ntau dua li cov pa roj carbon monoxide. Cov pa roj carbon dioxide tsis yog tshuaj lom vim peb kuj ua pa tawm. Carbon monoxide, ntawm qhov tod tes, yog cov pa phem tiag tiag.
Cov roj tsis zoo yog, piv txwv li, ntoo ntub, roj qub, lossis roj. Ntau ntau soot thiab ya tshauv kuj nkag mus rau saum huab cua. Qhov no xim cov pa luam yeeb grey lossis txawm dub. Piv txwv li, nkoj cav, feem ntau khiav ntawm cov roj av uas tsis tshua tau ntxuav. Nws yog pheej yig tab sis tuaj nrog cov pa luam yeeb ntau.
Lub tsheb emits yog hu ua "kua pa". Koj xav tau lub npe no vim tias yuav luag tsis muaj cov khoom ruaj khov hauv nws. Ntxiv nrog rau ntau yam gases, cov dej me me yog tsim thaum lub sij hawm combustion. Lawv xim cov pa paug dawb. Qhov no tshwj xeeb tshaj yog pom thaum lub cav tseem txias.
Factories muaj cov ntxaij lim dej uas siv tau los ntxuav cov pa luam yeeb. Koj tuaj yeem ua tiav zoo nrog qhov no hnub no. Exhaust lim kuj tau nruab rau hauv lub tsheb diesel. Catalytic converters yog siv nyob rau hauv petrol xyaw. Cov "post-combustors" no xyuas kom meej tias tsawg dua cov pa roj carbon monoxide raug tsim tawm. Txawm li cas los xij, cov pa roj carbon dioxide los ntawm cov chaw tsim hluav taws xob hluav taws xob tsis tuaj yeem lim tawm. Nws yog lub tsev cog khoom roj thiab pab txhawb ntau rau kev hloov pauv huab cua.
Cov pa luam yeeb puas tuaj yeem pab tau?
Kev haus luam yeeb yog ib txoj kev qub heev ntawm kev khaws cov nqaij thiab ntses. Nws kuj hloov cov saj ntawm cov zaub mov no. Ntau tus neeg yeej nyiam qhov ntawd.
Beekeepers paub ib qho kev qhia tshwj xeeb los tiv thaiv cov muv los ntawm stinging lawv: Lawv ua kom cov tsiaj me me nrog pa taws. Tsis tas li ntawd, muaj kev tiv thaiv los ntawm lawv cov khaub ncaws tshwj xeeb.
Fumigation tuaj yeem tshem tawm cov kab tsuag. Qee cov neeg yos hav zoov siv cov pa luam yeeb los tsav cov tsiaj xws li badgers thiab hma tawm ntawm lawv qhov burrows kom tua lawv.
Cov pa taws hluav taws xob tuaj yeem siv los xa cov lus hla mus ntev. Ntau haiv neeg Native American tau siv txoj kev no. Nws zoo ib yam li kev xaiv tsa ntawm Pope hauv Vatican. Thaum ib tug pope raug xaiv, cov pa luam yeeb dawb raug tso tawm. Cov pa luam yeeb dub qhia tias lub rooj sib txoos tsis tau npaj thiab yuav rov xaiv dua.
Nyob rau hauv lub Koom Txoos Catholic thiab Orthodox, xyab raug hlawv rau lub sijhawm tshwj xeeb thaum lub sijhawm ua haujlwm. Ua li no, cov resin ntawm tej ntoo yog hlawv nyob rau hauv ib lub nkoj. Cov pa luam yeeb tsw muaj zog thiab qab ntxiag. Cov neeg Iyiv thaum ub siv tshuaj tsw qab thaum cov neeg tuag tau mummified. Nyob rau hauv Vajluskub, nws suav hais tias yog ib lub txiaj ntsim ntawm peb Vajntxwv.
Qee cov neeg nyiam cov pa luam yeeb los ntawm cov luam yeeb thiab cov khoom lag luam luam yeeb. Nws kuj ua rau koj zoo siab rau qee lub sijhawm. Txawm li cas los xij, cov pa luam yeeb ua rau lub ntsws thiab lwm qhov ntawm lub cev puas tsuaj.