Kev Lag Luam Kub Tsis raug cai ua rau 'kev puas tsuaj' mercury pollution hauv Amazon Rainforest, Kev Tshawb Fawb hais tias

Tojsiab

Kev saib xyuas tsis zoo thiab feem ntau tsis raug cai ntawm cov mines kub me me tau tso tawm "kev puas tsuaj" qib ntawm cov tshuaj mercury lom nyob rau hauv ib qho ntawm feem ntau tiv thaiv thiab biodiverse thaj chaw ntawm Amazon rainforest, hem tib neeg kev noj qab haus huv thiab hampering sim khaws cia tsis yooj yim tropical ecosystems, raws li kev tshawb fawb luam tawm. Hnub Friday hauv Xwm Communications.

Cov Lus Tseem Ceeb

Cov kws tshawb fawb los ntawm cov tsev kawm ntawv hauv Tebchaws Meskas, Canada thiab Peru tau pom tias muaj cov mercury ntau yam tsis tau npaj tseg hauv Peruvian Amazon cov ntoo thiab hauv cov plaub hau ntawm cov noog, uas tuaj yeem raug kev txom nyem los ntawm kev muaj peev xwm hu nkauj thiab kev taw qhia, txo qis kev muaj peev xwm ua rau me nyuam thiab muaj feem yuav tuag yog tias lawv. raug mercury.

Kev ntsuam xyuas hauv Peruvian Amazon thaj tsam tsom los ntawm cov mining me me pom tias cov av thiab tsob ntoo nplooj khaws cov mercury ntau dua - uas yog tso los ntawm cov dej nag - nyob rau hauv cov chaw uas muaj hav zoov tag nrho dua li thaj chaw deforested.

Cov huab cua nyob ze ntawm qee qhov chaw Amazon mining - uas feem ntau tsis muaj kev txwv thiab tsis yooj yim los saib xyuas - muaj keeb kwm ntawm mercury concentration txog 10.9 nanograms ib cubic meter, zoo ib yam li lossis siab dua hauv nroog thiab thaj chaw muaj kev lag luam hauv Tebchaws Meskas, Tuam Tshoj thiab Kaus Lim Qab Teb.

Peru's Madre de Dios cheeb tsam, qhov chaw tsis raug cai ntawm kev khawb kub tsis raug cai, tau tshaj tawm qhov chaw ntawm "kev kis tus kab mob mercury ntev" hauv 2016 tom qab 40% ntawm cov neeg tau sim hauv 97 lub zos pom tias muaj kev phom sij ntau ntawm cov mercury, ib qho teeb meem feem ntau yog vim noj ntses.

Cov kws tshawb fawb tau hais tias cov mining me me yuav tsum raug tsim tawm thiab tswj xyuas kom ntseeg tau tias nws tsis tshwm sim hauv lub tebchaws thiab lawv thaj chaw tsis nyob ib puag ncig.

Txaus Ntshai Qhov Tseeb

Cov mining kub me me yog lub ntiaj teb loj tshaj plaws ntawm cov pa phem mercury, ntau dua li cov thee combustion, cov kws tshawb fawb tau hais.

Tus Keeb Kwm Tseem Ceeb

Cov miners kub me me siv mercury los khaws cov khoom me me ntawm cov kub sib xyaw nrog av. Tom qab cov mercury thiab kub ua ke, cov kub yog muab rho tawm los ntawm vaporizing cov mercury. Lub caij ntawd nkag mus rau hauv cov huab cua thiab raug xa mus rau cov khoom noj los ntawm ib lub cev mus rau lwm qhov, qee zaum accumulating ntau nyob rau hauv cov ntses predatory xws li shark, swordfish thiab huab tais mackerel. Yog tias noj cov khoom noj kom txaus, mercury tuaj yeem ua rau lub hlwb puas, kev yug menyuam thiab lwm yam kabmob. Kev lag luam kub tsis raug cai, uas tau raug liam tias muaj kev cuam tshuam rau hav zoov thiab mercury muaj kuab paug hauv Amazon. Txog rau lub Kaum Ob Hlis 2019, kev lag luam kub tsis raug cai tau raug txo los ntawm 1,500% hauv Peruvian Amazon, raws li lub koom haum nonprofit Amazon Conservation Association, tab sis ntau dua 2020 hectares ntawm thaj av tseem tau ntsib kev rhuav tshem tshiab txij li thaum tsoomfwv tau pib tawm tsam.

ntxiv nyeem ntawv

"Tshaj theem ntawm Mercury pom nyob rau hauv Qub Loj Loj Amazon Hav Zoov" (New York Times)