Video: Dab tsi yog bioaccumulation muab piv txwv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Bioaccuulation yog tsim cov tshuaj nyob rau hauv cov kab mob. Piv txwv ntawm bioaccuulation thiab biomagnification muaj xws li: tsheb emission tshuaj tsim nyob rau hauv cov noog thiab lwm yam tsiaj. Mercury tsim nyob rau hauv cov ntses.
Ua raws li qhov xav tau, biomagnification muab piv txwv li cas?
Rau piv txwv , Txau ib lub pas dej kom tswj tau yoov tshaj cum yuav ua rau cov kab mob DDT mus rau hauv cov hlwb ntawm cov kab mob hauv dej, cov plankton, hauv marsh. Hauv kev pub mis rau plankton, lim-feeders, zoo li clams thiab qee cov ntses, sau DDT thiab zaub mov.
vim li cas bioaccumulation thiaj li txaus ntshai? PBTs yog suav tias yog heev txaus ntshai rau tib neeg thiab tsiaj qus vim lawv nyob hauv ib puag ncig rau a heev ntev tsis tawg, ces bioaccumulate thiab biomagnify hauv ecosystems (nrog rau peb li). PBTs tseem tuaj yeem taug kev deb thiab txav ntawm huab cua, dej, thiab av.
Tsis tas li ntawd, dab tsi yog bioaccumulation yooj yim?
Bioaccuulation yog qhov tsub zuj zuj ntawm cov tshuaj, xws li tshuaj tua kab lossis lwm yam tshuaj hauv lub cev. Bioaccuulation tshwm sim thaum lub cev absorbs ib yam khoom ntawm tus nqi sai tshaj qhov uas cov khoom ploj los ntawm catabolism thiab excretion.
Cov kab mob dab tsi cuam tshuam tshaj plaws los ntawm bioaccumulation?
Methyl-mercury yog qhov muaj kev phom sij tshaj plaws ntawm cov mercury. Nws yog absorbed zoo, tab sis tsuas yog maj mam tawm los ntawm cov kab mob. Bioaccumulation thiab bioconcentration tshwm sim nyob rau hauv buildup nyob rau hauv cov ntaub so ntswg adipose ntawm successive trophic theem: zooplankton , me nekton, loj ntses , lwm.
Pom zoo:
Dab tsi yog cov nyhuv tshuaj ntawm hluav taws xob muab qee qhov piv txwv ntawm cov nyhuv tshuaj?
Ib qho piv txwv ntawm cov tshuaj muaj zog hauv cov hluav taws xob tam sim no yog electroplating. Hauv cov txheej txheem no, muaj cov kua dej uas muaj hluav taws xob dhau mus. qhov no yog ib qho piv txwv ntawm kev siv tshuaj lom neeg hauv hluav taws xob tam sim no
Dab tsi yog catalyst thiab muab piv txwv?
Catalysts yog cov khoom uas ua hauj lwm los ua kom ceev ntawm qhov kev tshwm sim tshwm sim. Lawv ua kom tus nqi ntawm cov tshuaj tiv thaiv los ntawm kev txo qis zog. Ib qho enzyme yog ib qho piv txwv zoo ntawm cov catalyst thiab lawv ua raws li cov txheej txheem hu ua 'xauv thiab qhov tseem ceeb', qhov twg cov tshuaj yog cov yuam sij thiab cov enzymes yog cov xauv
Dab tsi yog cov tshuaj tiv thaiv kab mob muab piv txwv?
Chain Reactions Piv txwv Cov tshuaj tiv thaiv ntawm hydrogen gas thiab cov pa roj carbon dioxide los ua dej yog lwm qhov piv txwv ntawm chainreaction. Hauv cov tshuaj tiv thaiv, ib qho hydrogen atom hloov pauv los ntawm lwm tus nrog rau ob OH radicals. Kev nthuav tawm ntawm cov tshuaj tiv thaiv tuaj yeem ua rau tawg
Dab tsi yog qhov tsis yog hlau muab piv txwv?
Ans: Hydrogen, hydrogen, chlorine, fluorine, carbon, nitrogen, arsenic, phosphorus, selenium yog cov piv txwv ntawm cov hlau tsis muaj hlau
Daim ntawv qhia thematic muab piv txwv yog dab tsi?
Daim ntawv qhia thematic yog univariate yog tias cov ntaub ntawv tsis yog qhov chaw yog txhua yam tib yam. Cov pej xeem ceev, tus nqi mob qog noj ntshav, thiab dej nag txhua xyoo yog peb yam piv txwv ntawm cov ntaub ntawv tsis sib xws. Piv txwv li, ib daim ntawv qhia qhia txog cov dej nag thiab cov kab mob qog noj ntshav yuav raug siv los tshawb txog qhov muaj feem cuam tshuam ntawm ob qhov tshwm sim