CHAMPIONSGATE, Fla., Kaum Ib Hlis 24, 2010 / PRNewswire-USNewswire / - A cov ntawv ceeb toom tshiab txog cov kev pheej hmoo xa los ntawm International Academy of Oral Medicine thiab Toxicology lub hlis no rau Asmeskas Chaw Tswj Xyuas Khoom Noj thiab Tshuaj (FDA) tau ceeb toom tias cov tshuaj mercury los ntawm cov kev kho hniav yog kwv yees ua rau 67.2 lab tus neeg Asmeskas tau siab tshaj Cov Kev Siv Tshuaj (REL) ntawm 0.3 ug / m3 tsim los ntawm Asmeskas Kev Tiv Thaiv Ib Cheeb Tsam (US EPA) nyob rau xyoo 1995. Yog tias ntau tshaj tiv thaiv REL ntawm 0.03 ug / m3 tsim nyob rau xyoo 2008 los ntawm California Kev Tiv Thaiv Ib Cheeb Tsam tau siv, yog li kev nyab xeeb-koob tshuaj tam sim no yog tej zaum dhau ntawm 122.3 lab Asmeskas.
