A new nine-year study of more than 367,000 children in Detroit supports the idea that a mysterious seasonal fluctuation in blood lead levels -- observed in urban areas throughout the United States and elsewhere in the northern hemisphere -- results from resuspended dust contaminated with lead.
Fuente : http://www.eurekalert.org/pub_releases/2013-02/acs...
Fuente : http://www.eurekalert.org/pub_releases/2013-02/acs...