Kev Ntsuas Kev Raug Mob Los Ntawm Amalgam 2010

Thaum Lub Kaum Ob Hlis 14 thiab 15, 2010, FDA tau teeb tsa lub rooj sib tham tshawb fawb los tshuaj xyuas qhov teeb meem ntawm mercury raug los ntawm amalgam kho hniav. Ob lub hauv paus ntiag tug, pab los ntawm IAOMT, commissioned G. Mark Richardson, PhD, ntawm SNC Lavallin, Ottawa, Canada, yav tas los ntawm Health Canada, muab cov kev tshawb fawb vaj huam sib luag thiab FDA regulators nrog kev soj ntsuam kev pheej hmoo siv cov ntaub ntawv tshiab los ntawm cov ntaub ntawv tshawb fawb. . Yav dhau los luam tawm cov kev ntsuas kev pheej hmoo hnub tim los ntawm 1990's. Lub caij no, cov kev tshawb fawb tshiab tau nthuav tawm ntau yam tshuaj lom uas tsim los ntawm cov qib qis ntawm cov mercury raug, thiab ntau lub koom haum tseem ceeb tau txo lawv cov qib raug tso cai.

Cov haujlwm kawg tau nthuav tawm ntawm no hauv ob ntu.

Ntu 1 yog hu ua HUAB TAIS TXOJ CAI TSHIAB, REEXAMINING REFERENCE EXPOSURE Levels, thiab ntsuas qhov ntsuas tsis ntev los no. "… nws tau txiav txim siab tias qee tus 67.2 lab Asmeskas yuav dhau Hg koob tshuaj cuam tshuam nrog REL ntawm 0.3 ug / m3 tsim los ntawm US Environmental Protection Agency hauv xyoo 1995, thaum 122.3 lab tus neeg Asmeskas yuav tshaj cov koob tshuaj cuam tshuam nrog REL ntawm 0.03 ug / m3 tsim los ntawm California Environmental Protection Agency hauv xyoo 2008. "

Ntu 2 yog hu ua CUMULATIVE RISK ASSESSMENT AND JOINT TOXICITY: MERCURY VAPOR, METHYL MERCURY AND LEAD. "Ib qho kev faib ua feem ntau - 1/3rd - ntawm cov pej xeem Asmeskas tau pom ib txhij rau Hg0, methyl Hg thiab Pb txhua hnub. Qhov hnyav ntawm cov pov thawj muaj qhia tias muaj kev pheej hmoo tshwm sim los ntawm kev sib xyaw ua ke ntawm 3 yam khoom no yuav tsum raug ntsuas raws li cov khoom ntxiv. "

Saib Tshooj:

• Amalgam Risk Assessment Part 1
• Amalgam Risk Assessment Part 2

Mark Richardson PhD piav qhia zaj dab neeg rov qab rau qhov kev ntsuam xyuas kev pheej hmoo uas nws tau ua hauv kev sab laj nrog FDA.