Mercury yog cov hlau hnyav uas pom nyob txhua qhov chaw hauv ib puag ncig. Nws muaj nyob rau hauv ntau hom:
- Elemental mercury: pom nyob rau hauv ib co thermometers
- Inorganic mercury ntsev/compounds: siv nyob rau hauv kev lag luam thiab zus tau tej cov chemicals
- Organic mercury (piv txwv li, methylmercury): paub txog bioaccumulate los ntawm cov khoom noj chains, tshwj xeeb tshaj yog nyob rau hauv ntses
Miv yog cov rhiab heev rau cov teebmeem ntawm methylmercury tshwj xeeb.
Txij li thaum raug cov tshuaj mercury tsis muaj nyob hauv cov miv, cov kab lus no yuav tsom mus rau cov tshuaj mercury lom uas tshwm sim los ntawm kev raug methylmercury ntev.
Dab tsi ua rau Mercury Poisoning hauv Miv?
Keeb kwm, tshuaj lom methylmercury tau pom nyob rau hauv cov miv uas noj cov ntses ntau ntau. Tej zaum koj yuav tau hnov txog "cov miv seev cev" ntawm Minamata, Nyij Pooj, uas nws cov tsos mob tshwm sim los ntawm ntau cov mercury pov tseg pov tseg rau hauv Minamata Bay los ntawm cov nroj tsuag petrochemical hauv xyoo 1950 (ntau txhiab tus neeg kuj raug cuam tshuam). Muaj lwm daim ntawv qhia txog miv nrog Minamata Kab Mob hauv Ontario, Canada xyoo 1970s.
Ntau qhov kev tshawb fawb tsis ntev los no (zoo li qhov no) tau ua rau muaj kev txhawj xeeb txog qib methylmercury hauv cov khoom noj tsiaj. Kev siv tswv yim ntawm cov ntaub ntawv no tam sim no txwv, txawm li cas los xij, vim tias:
- Nws tsis paub ntau npaum li cas ntawm cov mercury kuaj pom yog bioavailable (piv txwv li, muaj peev xwm nqus tau los ntawm lub cev)
- Veterinarians tsis nquag kuaj miv rau methylmercury raug, yog li peb tsis paub yog tias qib siab hauv cov khoom noj miv ua rau cov miv nce siab
- Tsis muaj kev tswj hwm ntawm qib mercury hauv cov khoom noj tsiaj hauv Tebchaws Meskas, yog li tsis muaj kev ncaj ncees rau kev txhim kho kev nyab xeeb ntawm cov khoom noj khoom haus
Kev raug methylmercury nyob rau hauv cov zaub mov miv yeej muaj peev xwm ua rau muaj toxicity. Txawm li cas los xij, tam sim no peb tsis muaj pov thawj kho mob los qhia tias qhov no tshwm sim tiag tiag.
Dab tsi yog cov cim qhia ntawm Mercury Poisoning hauv Miv?
Cov tsos mob ntawm mercury lom nyob rau hauv miv feem ntau yog vim kev puas tsuaj ntawm lub paj hlwb (xws li lub paj hlwb), vim hais tias qhov no yog qhov uas methylmercury nyhav rau hauv lub cev. Lub raum kuj raug cuam tshuam ntau zaus, nrog rau cov menyuam mos hauv plab (mercury hla cov placenta).
Tej yam tshwm sim muaj xws li:
- Ataxia (kev sib koom tes dav dav)
- Tuag los yog qaug zog
- Kev coj cwj pwm tsis zoo
- Exaggerated gait (hypermetria)
- Qhov muag poob
- Tshuaj ntsuab
Nws tuaj yeem siv sijhawm li ob peb lub lis piam rau methylmercury los tsim hauv lub cev mus rau theem uas cov tsos mob tshwm sim tshwm sim.
Puas muaj Mercury Poisoning Kho tau?
Hmoov tsis zoo, tsis muaj cov tshuaj tiv thaiv tshwj xeeb rau kev mob methylmercury toxicity. Kev kho mob suav nrog kev txhawb nqa kev saib xyuas thiab tiv thaiv kev kis tus kab mob ntxiv. Tam sim no tsis muaj pov thawj los qhia tias kev kho chelation (uas tau siv rau hauv cov xwm txheej mob hnyav tshwm sim los ntawm inorganic mercury ntsev) yuav pab tau rau cov xwm txheej no.
Qhov kev puas tsuaj rau cov kabmob uas tshwm sim los ntawm methylmercury yog qhov hloov tsis tau, thiab qhov kev cia siab rau cov neeg mob hnyav yog qhov tsis zoo. Cov miv uas muaj txoj sia nyob yuav muaj kev puas tsuaj mus tas li thiab ua rau lub raum tsis ua haujlwm.
Lwm yam tsis yog cov xwm txheej tshwj xeeb uas tau hais hauv tsab xov xwm no, muaj tsawg heev cov lus ceeb toom ntawm kev lees paub methylmercury toxicity hauv miv. Cov tsos mob tuaj yeem zoo ib yam li lwm cov kab mob neurologic, yog li cov kws kho tsiaj yuav tsis xav txog kev sim tshuaj methylmercury thiab cov mob me me yuav tsis raug kuaj pom. Yog li ntawd, peb muaj cov ntaub ntawv me me hais txog tag nrho qhov muaj feem ntau ntawm methylmercury toxicity hauv miv thiab seb cov neeg mob me me puas tseem muaj sia nyob.
Kuv Yuav Tiv Thaiv Kuv Tus Miv Los Ntawm Cov Tshuaj Mercury?
Thaum qhov kev pheej hmoo ntawm cov kab mob mercury muaj tsawg heev rau cov miv feem ntau, muaj qee cov kauj ruam uas koj tuaj yeem ua los pab koj tus miv kom nyab xeeb li sai tau. Cov no yuav yog ib qho tseem ceeb tshwj xeeb rau cov miv cev xeeb tub thiab cov miv:
- txwv koj tus miv noj cov ntses ntses (xws li tuna) uas paub tias muaj cov mercury ntau dua (saib daim ntawv qhia no kom muaj kev nyab xeeb dua)
- Tseem xyuas cov lus qhia noj ntses hauv zos ua ntej sib qhia cov ntses qus nrog koj tus miv
- Xav txog kev yuav khoom noj miv los ntawm cov tuam txhab uas yeem ua haujlwm nruj tswj hwm lawv cov khoom, suav nrog kev kuaj cov hlau hnyav thiab lwm yam co toxins
Lub sijhawm no, cov roj ntses cov tshuaj tsis tuaj yeem yog qhov tseem ceeb ntawm mercury.
Conclusion
Cia siab tias, kev tshawb fawb yav tom ntej yuav txuas ntxiv tshawb xyuas cov qib methylmercury hauv cov khoom noj miv thiab txiav txim siab seb lawv puas yog qhov ua rau muaj kev txhawj xeeb.
Kev txhim kho cov kev cai txiav txim siab siab tshaj plaws ntawm cov mercury hauv cov zaub mov tsiaj yuav yog ib kauj ruam zoo los ua kom peb cov miv cov zaub mov muaj kev nyab xeeb li sai tau.
Nws kuj tseem yuav pab tau kom txiav txim siab seb puas yog txoj hauv kev uas tsis muaj kev cuam tshuam ntawm kev ntsuas methylmercury qib hauv miv (xws li cov qauv plaub) tuaj yeem siv rau kev saib xyuas thoob plaws.
