ELECTRONIC	h   t   t   p   c o l o n   s l a s h   s l a s h   w   w   w dot e   p   a dot g o v   s l a s h   g l o   s l a s h   h e a l t h dot h t m l b l e i z e f f e r	http://www.epa.gov/glo/health.htmlbleizeffer	1