Dab tsi yog qhov ua rau biomagnification lossis bioaccumulation?
Dab tsi yog qhov ua rau biomagnification lossis bioaccumulation?

Video: Dab tsi yog qhov ua rau biomagnification lossis bioaccumulation?

Video: Dab tsi yog qhov ua rau biomagnification lossis bioaccumulation?
Video: Dab tsi yog qhov tseeb txog cov tshuaj tiv thaiv COVID-19? 2024, Kaum ib hlis
Anonim

Biomagnification Cov txheej txheem tshwm sim thaum qee yam tshuaj lom neeg thiab cov pa phem xws li cov hlau hnyav, tshuaj tua kab lossis polychlorinated biphenyls (PCBs) cov khoom sib txuas mus rau cov khoom noj los ntawm kev ua haujlwm los ntawm ib puag ncig thiab mus rau hauv av lossis hauv cov dej tom qab uas lawv tau noj los ntawm cov tsiaj hauv dej los yog nroj tsuag, Ib yam li ntawd, bioaccumulation ua rau biomagnification li cas?

Bioaccumulation yog cov txheej txheem los ntawm cov co toxins nkag mus rau hauv lub vev xaib khoom noj los ntawm kev txhim kho hauv tib neeg cov kab mob, thaum biomagnification yog cov txheej txheem uas co toxins yog dhau los ntawm ib qib trophic mus rau tom ntej (thiab yog li nce hauv concentration) hauv lub vev xaib khoom noj.

Tom qab ntawd, lo lus nug yog, biomagnification yog dab tsi thiab vim li cas nws tseem ceeb? Biomagnification yog cov txheej txheem los ntawm cov tshuaj lom neeg thiab cov tshuaj phem tsim nyob rau hauv cov ntaub so ntswg ntawm cov tsiaj (feem ntau siab dua ntawm cov khoom noj khoom haus) uas ua rau muaj kev puas tsuaj rau cov tsiaj mus rau sab saum toj ntawm cov khoom noj uas cuam tshuam rau tag nrho cov khoom noj. Qhov tseem ceeb ntawm biomagnification hauv toxicology.

Ib yam li ntawd, koj tuaj yeem nug, qhov txawv ntawm biomagnification thiab bioaccumululation yog dab tsi?

Ib txawv yog tias bioaccuulation hais txog kev tsim cov tshuaj hauv lub cev ntawm ib lub cev thaum biomagnification hais txog kev txhim kho hauv ntau lub cev. Biomagnification kuj yuav tsum tau txav mus rau cov khoom noj khoom haus kom tshwm sim, thaum bioaccuulation tsis xav kom tus tsiaj noj.

Cov piv txwv ntawm biomagnification yog dab tsi?

Lwm qhov tseem ceeb piv txwv ntawm biomagnification yog nyob rau hauv cov ntses predator. Cov tsiaj xws li Shark, Swordfish, Txiv kab ntxwv Roughy, Tuna, King Mackerel, los yog Tilefish muaj feem ntau ntawm cov tshuaj mercury ntau dua li cov ntses me. thiab shellfish.

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