Kev xoo hluav taws xob yog qhov teeb meem tshwm sim ntau tshaj plaws ntawm cov khoom siv hauv tsev rau neeg vim tias hluav taws xob los ntawm cov xov tooj hluav taws xob tsis zoo. Cov pob zeb kho kom zoo nkauj hauv tsev tam sim no yog granite, tsim ntawm quartz, feldspar thiab mica, thiab lwm yam yog marble. Ob hom pob zeb no muaj qee cov khoom siv hluav taws xob, xws li radium, uranium, thiab lwm yam. Cov ntsiab lus no yuav tsim cov khoom siv hluav taws xob xws li radon thaum lub sijhawm ua kom cov txheej txheem lwj. Kev ua pa ntev ntev ntawm cov cua uas muaj cov xov tooj cua yuav tsim hluav taws xob ua rau tib neeg lub cev ua pa, tshwj xeeb yog lub ntsws, thiab ua rau ntau yam kabmob, xws li mob hauv siab thiab kub taub hau. Thaum muaj mob hnyav, nws kuj tseem tuaj yeem ua rau hloov qog noj ntshav hauv qee cov tib neeg lub cev, uas ua rau tuag taus. Cov. Tsis tas li ntawd, cov ntaub pua plag huv uas siv hauv kev kho kom zoo nkauj hauv tsev yuav muaj cov khoom siv hluav taws xob ntau dhau, uas yuav muaj kev cuam tshuam tsis zoo rau tib neeg kev noj qab haus huv.
Cov khoom siv kev tsim kho tshiab yog ntau yam tshiab ntawm cov khoom siv hauv tsev uas sib txawv los ntawm cov tsoos cib thiab cov vuas, limestone thiab lwm yam khoom siv hauv tsev, suav nrog ntau ntau yam thiab pawg. Los ntawm cov chaw ua haujlwm pom, muaj cov khoom siv phab ntsa, cov khoom siv kho kom zoo nkauj, cov ntaub ntawv qhov rooj thiab lub qhov rai, cov khoom siv rwb thaiv tsev, cov khoom siv dej, cov khoom siv sib khi thiab sib khi, zoo li ntau cov khoom siv, khoom siv yas thiab ntau yam khoom siv ntu. Hais txog cov khoom siv, tsis tsuas yog cov khoom siv ntuj tsim xwb, tab sis kuj yog cov ntaub ntawv tshuaj, cov ntaub ntawv hlau, cov ntaub ntawv tsis yog hlau, thiab lwm yam.