Kodi Muyenera Kupewa Nsomba Chifukwa cha Mercury?

Zamkati

• Chifukwa Chake Mercury Ndi Vuto
• Nsomba Zina Zimakhala Zokwera Kwambiri mu Mercury
• Kuchuluka kwa Nsomba ndi Anthu
• Zotsatira Zoyipa Zaumoyo
• Anthu Ena Ali pachiwopsezo Chachikulu
• Mfundo Yofunika Kwambiri

Nsomba ndi chimodzi mwa zakudya zabwino kwambiri zomwe mungadye.

Izi ndichifukwa choti ndizopangira mapuloteni, micronutrients, ndi mafuta athanzi.

Komabe, mitundu ina ya nsomba imatha kukhala ndi mercury yambiri, yomwe ndi poizoni.

M'malo mwake, kuwonetsedwa kwa mercury kumalumikizidwa ndi mavuto akulu azaumoyo.

Nkhaniyi ikukuuzani ngati muyenera kupewa nsomba chifukwa cha kuipitsidwa kwa mercury.

Chifukwa Chake Mercury Ndi Vuto

Mercury ndi chitsulo cholemera chomwe chimapezeka mwachilengedwe mumlengalenga, m'madzi, ndi nthaka.

Amatulutsidwa m'chilengedwe m'njira zingapo, kuphatikiza kudzera munjira zopangira mafakitale monga kuyaka malasha kapena zochitika zachilengedwe monga kuphulika.

Mitundu itatu yayikulu ilipo - elemental (metallic), inorganic, ndi organic ().

Anthu amatha kudziwika ndi poizoni munjira zingapo, monga kupumira nthunzi za mercury panthawi yama migodi komanso ntchito zamafakitale.

Muthanso kudziwitsidwa ndikudya nsomba ndi nkhono zam'madzi chifukwa nyamazi zimamwa mankhwala ochepa kwambiri chifukwa cha kuipitsa madzi.

Popita nthawi, methylmercury - organic form - imatha kuyang'ana m'matupi awo.

Methylmercury ndi poizoni kwambiri, imayambitsa mavuto akulu azaumoyo ikafika pamagulu ena m'thupi lanu.

Mercury ndichitsulo cholemera mwachilengedwe. Amatha kupanga matupi a nsomba ngati methylmercury, omwe ndi owopsa kwambiri.

Nsomba Zina Zimakhala Zokwera Kwambiri mu Mercury

Kuchuluka kwa mercury mu nsomba ndi nsomba zina zimadalira mitundu ndi kuchuluka kwa kuipitsa malo ake.

Kafukufuku wina wochokera ku 1998 mpaka 2005 adapeza kuti 27% ya nsomba kuchokera kumitsinje 291 kuzungulira United States inali ndi malire ochulukirapo (2).

Kafukufuku wina anapeza kuti gawo limodzi mwa magawo atatu a nsomba zomwe zinagwidwa m'mphepete mwa nyanja ya New Jersey zinali ndi ma mercury okwera kuposa magawo 0,5 pa miliyoni (ppm) - mulingo womwe ungayambitse mavuto azaumoyo kwa anthu omwe amadya nsombazi pafupipafupi ().

Pafupifupi, nsomba zazikulu komanso zazitali zimakhala ndi mercury ().

Izi zikuphatikizapo shark, swordfish, tuna watsopano, marlin, king mackerel, tilefish yochokera ku Gulf of Mexico, ndi kumpoto kwa pike ().

Nsomba zikuluzikulu zimakonda kudya nsomba zing'onozing'ono zambiri, zomwe zimakhala ndi mercury pang'ono. Popeza sizimatulutsidwa mosavuta m'matupi awo, milingo imadziunjikira pakapita nthawi. Izi zimadziwika kuti kusakanikirana ().

Madzi a Mercury amawerengedwa ngati magawo miliyoni (ppm). Nayi milingo yapakati pamitundu yosiyanasiyana ya nsomba ndi nsomba, kuyambira pamwamba mpaka kutsikitsitsa ():

• Nsomba zamipeni: 0.995 ppm
• Shaki: 0.979 ppm
• Mfumu mackerel: 0.730 ppm
• Nsomba ya Bigeye: 0.689 ppm
• Marlin: 0.485 ppm
• Nsomba zamzitini: 0.128 ppm
• Cod: 0.111 ppm
• Nkhanu zaku America: 0.107 ppm
• Nsomba zoyera: 0.089 ppm
• Hering'i: 0.084 ppm
• Hake: 0.079 ppm
• Nsomba ya trauti: 0.071 ppm
• Nkhanu: 0.065 ppm
• Haddock: 0.055 ppm
• Kufufuza: 0.051 ppm
• Nsomba ya Atlantic: 0.050 ppm
• Nsomba zazinkhanira: 0.035 ppm
• Pollock: 0.031 ppm
• Nsomba zopanda mamba: 0.025 ppm
• Sikwidi: 0.023 ppm
• Salimoni: 0.022 ppm
• Anchovies: 0.017 ppm
• Sardines: 0.013 ppm
• Oyisitara: 0.012 ppm
• Ma Scallops: 0.003 ppm
• Shirimpi: 0.001 ppm

Mitundu yosiyanasiyana ya nsomba ndi nsomba zina zimakhala ndi mercury wosiyanasiyana. Nsomba zazing'ono komanso zazitali nthawi zambiri zimakhala ndizambiri.

Kuchuluka kwa Nsomba ndi Anthu

Kudya nsomba ndi nkhono zam'madzi ndizomwe zimayambitsa ma mercury mwa anthu ndi nyama. Kuwonetsera - ngakhale pang'ono - kungayambitse matenda aakulu (,).

Chosangalatsa ndichakuti, m'madzi a m'nyanja muli ma methylmercury ochepa chabe.

Komabe, zomera zam'madzi monga ndere zimayamwa. Kenako nsomba zimadya nderezo, kuyamwa ndikusunga mercury. Nsomba zazikuluzikulu, zomwe zimadya nyama kenako zimadziunjikira pakudya nsomba zing'onozing'ono (,).

M'malo mwake, nsomba zazikuluzikulu, zomwe zimadya nyama zina zimakhala ndi ma mercury opitilira kasanu kuposa nsomba zomwe amadya. Izi zimatchedwa biomagnification (11).

Mabungwe aboma aku US amalimbikitsa kuti magazi anu a mercury asungidwe pansipa 5.0 mcg pa lita (12).

Kafukufuku wina waku US mwa anthu 89 adapeza kuti kuchuluka kwa mercury kumachokera ku 2.0-89.5 mcg pa lita imodzi, pafupifupi. 89% yochulukirapo inali ndi milingo yokwera kuposa malire ().

Kuphatikiza apo, kafukufukuyu adawona kuti kudya nsomba zochulukirapo kumalumikizidwa ndi milingo yayikulu yama mercury.

Komanso, maphunziro ambiri atsimikiza kuti anthu omwe amadya nsomba zazikuluzikulu nthawi zonse - monga pike ndi nsomba - amakhala ndi mercury (,).

Kudya nsomba zambiri - makamaka mitundu ikuluikulu - kumalumikizidwa ndi milingo yayikulu ya mercury mthupi.

Zotsatira Zoyipa Zaumoyo

Kuwonetsedwa kwa mercury kumatha kuyambitsa mavuto akulu azaumoyo ().

Mwa anthu ndi nyama, milingo yambiri ya mercury imalumikizidwa ndi mavuto amubongo.

Kafukufuku ku 129 akulu aku Brazil adapeza kuti milingo yayikulu ya tsitsi la mercury imalumikizidwa ndi kuchepa kwa luso lamagalimoto, kupindika, kukumbukira, komanso chidwi ().

Kafukufuku waposachedwa amalumikizanso kukhudzana ndi zitsulo zolemera - monga mercury - kuzinthu ngati Alzheimer's, Parkinson's, autism, kukhumudwa, komanso nkhawa ().

Komabe, maphunziro ena amafunikira kuti atsimikizire ulalowu.

Kuphatikiza apo, kukhudzana ndi mercury kumalumikizidwa ndi kuthamanga kwa magazi, chiopsezo chowonjezeka cha matenda amtima, komanso "cholesterol" choipa kwambiri ",",,,).

Kafukufuku m'modzi mwa amuna 1,800 adapeza kuti omwe ali ndi mercury ochulukirapo amatha kufa kawiri kawiri ndimatenda okhudzana ndi mtima kuposa amuna omwe ali ndi magawo otsika ().

Komabe, phindu lazakudya za nsomba mwina limaposa chiopsezo chokhudzidwa ndi mercury - bola ngati mukuchepetsa kuchuluka kwa nsomba za mercury ().

Magulu apamwamba a mercury amatha kuwononga ubongo ndi thanzi la mtima. Komabe, maubwino azaumoyo akudya nsomba atha kupitilira zoopsa izi bola mukamachepetsa kudya nsomba za mercury.

Anthu Ena Ali pachiwopsezo Chachikulu

Mercury mu nsomba samakhudza aliyense chimodzimodzi. Chifukwa chake, anthu ena ayenera kusamalira kwambiri.

Anthu omwe ali pachiwopsezo ali ndi amayi omwe ali ndi pakati kapena atha kukhala ndi pakati, amayi oyamwitsa, ndi ana aang'ono.

Makanda ndi ana ali pachiwopsezo chotheka ndi poizoni wa mercury, ndipo mercury imatha kuperekedwa mosavuta kwa mwana wosabadwa wa mayi wapakati kapena khanda la mayi woyamwitsa.

Kafukufuku wina wazinyama adawonetsa kuti kupezeka kwa kuchepa kwa methylmercury m'masiku 10 oyambira kutenga pakati kukanika kugwira ntchito kwa mbewa zazikulu ().

Kafukufuku wina adawonetsa kuti ana omwe amapezeka mu mercury m'mimba amalimbana ndi chidwi, kukumbukira, chilankhulo, komanso magalimoto (,).

Kuphatikiza apo, kafukufuku wina akuwonetsa kuti mafuko ena - kuphatikiza Amwenye Achimereka, Asiya, ndi Pacific Islanders - ali pachiwopsezo chachikulu chowonekera kwa mercury chifukwa chakudya komwe kumakhala nsomba zambiri).

Amayi oyembekezera, amayi oyamwitsa, ana aang'ono, ndi iwo omwe amadya nsomba zambiri nthawi zambiri amakhala pachiwopsezo chachikulu chazovuta zokhudzana ndi kuwonekera kwa mercury.

Mfundo Yofunika Kwambiri

Ponseponse, simuyenera kuopa kudya nsomba.

Nsomba ndi gwero lofunikira la omega-3 fatty acids ndipo zimapindulitsanso zina zambiri.

M'malo mwake, amalimbikitsidwa kuti anthu ambiri azidya nsomba zosachepera ziwiri pamlungu.

Komabe, Food and Drug Administration (FDA) imalangiza anthu omwe ali pachiwopsezo chachikulu cha mankhwala owopsa a mercury - monga amayi apakati kapena oyamwitsa - kuti asunge izi: (:

• Idyani ma servings 2-3 (227-340 magalamu) a nsomba zosiyanasiyana sabata iliyonse.
• Sankhani nsomba zam'madzi zotsika kwambiri, monga nsomba, shrimp, cod ndi sardines.
• Pewani nsomba za mercury, monga tilefish yochokera ku Gulf of Mexico, shark, swordfish, ndi king mackerel.
• Posankha nsomba zatsopano, yang'anirani upangiri wa nsomba za mitsinje kapena nyanja.

Kutsatira malangizowa kudzakuthandizani kukulitsa zabwino zodyera nsomba ndikuchepetsa chiopsezo chanu chotsitsidwa ndi mercury.