The BBC reports that:   
   
Young children's exposure to lead in the environment is harming their intellectual and emotional 
development, according to UK researchers.   
   
The researchers say the toxic effects of lead on the central nervous system are obvious even below 
the current so-called safe level of lead in the blood.    
   
Link: http://news.bbc.co.uk/1/hi/health/8259639.stm