CHAMPIONSGATE, Fla., Novembala 24, 2010 / PRNewswire-USNewswire / - A lipoti latsopano lowunika yoperekedwa ndi International Academy of Oral Medicine and Toxicology mwezi uno ku US Food and Drug Administration (FDA) ichenjeza kuti mercury kuchokera kumadzaza mano akuti akupangitsa kuti anthu aku America 67.2 miliyoni apitirire Reference Exposure Level (REL) ya 0.3 ug / m3 yokhazikitsidwa ndi US Environmental Protection Agency (US EPA) mu 1995. Ngati REL yoteteza kwambiri ya 0.03 ug / m3 yomwe idakhazikitsidwa mu 2008 ndi California Environmental Protection Agency ikugwiritsidwa ntchito, ndiye kuti mlingo wotetezeka wapano mwina wapitilira anthu aku America 122.3 miliyoni.
