Mineral bodies in the Pine Creek region were composed of a complex mixture of zinc, lead, silver and antimony ores that early ...

Artisanal lead mining in Nigeria is responsible for airborne lead exposures that are 10 times the U.S. Permissible Exposure Limit according to a study published today. This is the first study to ...

Everyone one of us is likely aware of what lead — as in the metal — is. Having a somewhat dull, metallic gray appearance, it occupies atomic number 82 in the periodic table and is among the most dense ...

ST. LOUIS -- The Missouri Department of Natural Resources has found what it calls significant soil lead contamination along several southeast Missouri roads traveled by trucks hauling lead ore, ...

IN an earlier communication to NATURE (April 3, 1926, p. 482), I attempted to show that of the lead dispersed through igneous rocks, roughly one-half is of radioactive origin. The atomic weight of the ...

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