2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cadmium yog cov tshuaj lom neeg nrog lub cim Cd thiab atomic naj npawb 48. Cov hlau mos, silvery-white yog tshuaj zoo ib yam li ob lwm cov hlau ruaj khov hauv pawg 12, zinc thiab mercury.
Cov khoom lag luam twg yog cadmium pom hauv?
Feem ntau cov av thiab pob zeb, suav nrog cov thee thiab pob zeb hauv av chiv, muaj qee cov cadmium. Cadmium siv ntau yam khoom, suav nrogroj teeb, pigments, hlau txheej, thiab plastics, thiab nws muaj nyob hauv cov pa luam yeeb. Cadmium nkag mus rau ib puag ncig los ntawm kev ua haujlwm mining thiab kev ua haujlwm ntawm cua thiab nag.
Cadmium feem ntau pom nyob qhov twg?
Nws feem ntau pom muaj me me hauv zinc ores, xws li sphalerite (ZnS). Cadmium mineral deposits muaj nyob rau hauv Colorado, Illinois, Missouri, Washington thiab Utah, nrog rau Bolivia, Guatemala, Hungary thiab Kazakhstan. Txawm li cas los xij, yuav luag tag nrho cov cadmium siv yog cov khoom siv los ntawm kev kho zinc, tooj liab thiab txhuas ore.
Cadmium siv rau hauv lub neej txhua hnub yog dab tsi?
Cadmium tau dhau los ua cov hlau tseem ceeb hauv kev tsim cov nickel-cadmium (Ni-Cd)roj teeb rechargeablethiab ua cov txheej txheem tiv thaiv corrosion rau hlau thiab hlau. Feem ntau siv rau cadmium niaj hnub no yog nyob rau hauv cov roj teeb, alloys, coatings (electroplating), solar cells, yas stabilizers, thiab pigments.
Cadmium pom nyob qhov twg?
Los ntawm av, qee yam nroj tsuag (muab luam yeeb, mov, lwm yam cereal nplej, qos yaj ywm, thiab lwm yamzaub) noj cadmium ntau tshaj li lawv ua lwm yam hlau hnyav xws li txhuas thiab mercury (Satarag li al. 2003). Cadmium kuj muaj nyob rau hauv nqaij, tshwj xeeb tshaj yog cov khoom qab zib xws li daim siab thiab raum.
Pom zoo:
Puas yog cov dab dab dab dab dab dab dab dab dab dab dab dab?
Myth: Ib tug dab tshos tsis yog neeg ncaj ncees yog tiasnws haum yog. Fact: Tu siab, qhov no yog ib lo lus tsis tseeb uas tau raug perpetuated los ntawm aversive trainers. Txawm hais tias haum rau lub caj dab kom zoo khawb rau hauv cov tawv nqaij rhiab nyob ib ncig ntawm lub caj dab, uas ua rau muaj kev puas tsuaj loj rau cov thyroid, esophagus, thiab trachea.
Dab tsi dawb ceev relics pom nyob rau hauv chorten kora?
Pem hauv ntej ntawm lub chorten yog lub pob zeb ntuj tsim, tus sertho, uas siv los zaum saum lub chorten thiab suav tias yog dawb ceev. Tseem muaj ib tug me me goemba ntawm no. Cov yeeb yaj kiab nrov Bhutanese Chorten Kora raug tua ntawm no.
Yuav ua li cas txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau pom kev pom?
Txawm li cas los xij, corneal collagen cross-linking - cov txheej txheem qib siab tau pom zoo los ntawm US Food and Drug Administration (FDA) hauv xyoo 2016 - tuaj yeem txhim kho qhov pom kev hauv cov neeg mob txhua hnub nyoog. Corneal collagen cross-linking (CXL) tsis yog kho rau keratoconus, tab sis nws tuaj yeem pab tiv thaiv tus mob kom tsis txhob mob hnyav.
Nyob rau hauv daim siab detoxifying enzymes nyob rau hauv dab tsi organelle?
Cov enzymes uas tsim cov lipid Cheebtsam ntawm lipoproteins nyob rau hauv daim nyias nyias ntawm ER smooth ER Lub du endoplasmic reticulum tsis muaj ribosomesthiab ua haujlwm hauv lipid synthesis tab sis tsis metabolism, kev tsim cov tshuaj hormones steroid, thiab detoxification.
Leej twg detering nyob rau hauv tag nrho cov nyob ntsiag to nyob rau sab hnub poob pem hauv ntej?
Detering yog tus neeg ua liaj ua teb los ntawm Txhua Tus Neeg Tsis Txaus Siabntawm Sab Hnub Poob los ntawm Erich Maria Remarque. Nws muaj siab mos siab muag, tshwj xeeb tshaj yog thaum nws los txog rau nees. Nws muaj kev kub ntxhov loj heev thaum nws hnov cov nees quaj thiab txawm sim tua lawv kom kawg lawv txoj kev txom nyem.
