txheej txheem pib los ntawm kev tsim ib qho ntev luam yeeb, hu ua " pas nrig." Txhawm rau tsim tus pas nrig, ib daim ntawv luam yeeb txog li 7,000 meters ntev yog unrolled thiab ib kab ntawm luam yeeb muab tso rau ntawm nws. … Txhua tus pas nrig luv luv yog txiav ib nrab, ua ob lub luam yeeb.
luam yeeb ua li cas?
Kev tsim luam yeeb yog qhov nrawm nrawm, ua haujlwm siab heev. Peb cov tshuab tuaj yeem tsim txog 20, 000 luam yeeb txhua feeb. Cov txheej txheem pib los ntawm kev tsim ib lub luam yeeb ntev, hu ua "rod." Txhawm rau tsim tus pas nrig, ib daim ntawv luam yeeb ntev txog 7,000 meters ntev yog unrolled thiab muab ib kab ntawm cov luam yeeb tso rau ntawm nws.
Cov khoom xyaw twg hauv cov pa luam yeeb?
Cov no tsuas yog qee cov tshuaj muaj nyob hauv cov pa luam yeeb:
- Benzene;
- Benzo(a)pyrene;
- Ammonia;
- Formaldehyde;
- YHydrogencyanide;
- Acrolein;
- YDimethylnitrosamine;
- Non-nicotine alkaloids;
Puas yog nas muaj tshuaj lom hauv luam yeeb?
Arsenic feem ntau siv hauv tshuaj lom nas. Arsenic pom nws txoj hauv kev rau cov pa luam yeeb los ntawm qee cov tshuaj tua kab uas siv hauv kev ua liaj ua teb luam yeeb. Cadmium yog cov hlau hnyav hnyav uas siv rau hauv cov roj teeb. Cov neeg haus luam yeeb feem ntau muaj ob npaug ntau dua cadmium hauv lawv lub cev li cov neeg tsis haus luam yeeb.
Yuav ua li cas yog qhov phem tshaj ntawm luam yeeb?
Hlawv hloov cov khoom ntawm cov tshuaj. Raws li US National Cancer Institute: Ntau tshaj7, 000 chemicals hauv cov pa luam yeeb, yam tsawg 250 paub tias muaj kev phom sij, suav nrog hydrogen cyanide, carbon monoxide, thiab ammonia.
