Pa Disembala 14 ndi 15, 2010, a FDA adayitanitsa gulu lazasayansi kuti liunikenso nkhani yokhudza kupezeka kwa mankhwala a mercury kuchokera pakudzaza mano a amalgam. Maziko awiri achinsinsi, mothandizidwa ndi IAOMT, adalamula G. Mark Richardson, PhD, wa SNC Lavallin, Ottawa, Canada, omwe kale anali a Health Canada, kuti apatse gulu lazasayansi ndi oyang'anira a FDA kuwunika koopsa pogwiritsa ntchito zomwe zaposachedwa kuchokera m'mabuku a sayansi . Zomwe zidasindikizidwa kale kuyambira zaka za m'ma 1990. Pakadali pano, kafukufuku watsopano wavumbula poizoni wopangidwa ndi kuchepa kwa ma mercury, ndipo mabungwe osiyanasiyana aboma akhala akuchepetsa kuchuluka kwawo komwe kumaloledwa.
Ntchito yomaliza imaperekedwa pano mu magawo awiri.
Gawo 1 limatchedwa KUSINTHA KUWONETSEDWA, KULINGANITSITSA MALANGIZO OTHANDIZA OTHANDIZA, NDIPONSO KUYESETSA MAPHUNZIRO ATSOPANO. "... zidatsimikizika kuti anthu aku America 67.2 miliyoni atha kupitilira mlingo wa Hg wolumikizidwa ndi REL wa 0.3 ug / m3 womwe udakhazikitsidwa ndi US Environmental Protection Agency mu 1995, pomwe anthu aku America aku 122.3 apitilira kuchuluka komwe kumalumikizidwa ndi REL ya 0.03 ug / m3 yakhazikitsidwa ndi California Environmental Protection Agency mu 2008. ”
Gawo lachiwiri limatchedwa CUMULATIVE RISK ASSESSMENT NDI JOINT TOXICITY: MERCURY VAPOR, METHYL MERCURY AND LEAD. “Gawo lalikulu - 2/1 - la anthu aku US nthawi yomweyo amakhala ku Hg3, methyl Hg ndi Pb tsiku lililonse. Umboni womwe ulipo ukusonyeza kuti kuopsa kokhala nawo limodzi mwa zinthu zitatuzi kuyenera kuwonedwa ngati zowonjezera. ”
Onani Nkhani:
Mark Richardson PhD akufotokozera nkhani yakumbuyo poyesa kuwunika kwa amalgam komwe adachita pothandizana ndi FDA.
KUWUNIKITSANSO KUFOTOKOZA MALANGIZO OTHANDIZA, NDIPONSO KUYESETSA MAPHUNZIRO ATSOPANO
KUWERENGA KWACHIWEREZI NDI KUGWIRITSA NTCHITO PAMODZI: CHIFUNDO CHOPHUNZITSIRA, METHYL CHIFUNDO NDI KUTSOGOLERA
