OK International
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 report on airborne lead levels from self-employed artisanal lead miners as a source of community exposures.
The study also found that airborne lead exposures from gold ore processing in Northern Nigeria is associated with exposures that are more than 30 times greater than allowable exposure limits. The artisanal gold ore processing that was monitored utilized a variety of manual and machine grinding methods to process and extract the gold.
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