מחזור בדלים

http://tobaccocontrol.bmj.com/content/20/Suppl_1/i25.full.pdf Toxicity of cigarette butts, and their chemical components, to marine and freshwater fish

Cigarettes Butts and the Case for an Environmental Policy on Hazardous Cigarette Waste-International Journal of Environmental Research and Public Health, May 2009

Cigarette Butts as Litter?Toxic as Well as Ugly– Underwater Naturalist, Bulletin of the American Littoral Society, Volume 25, Number 2, August 2000

Sidney, Australia’s Ark Reseach Report on “Cigarette Butt Litter,” April 1995– 1.2 MB, 30 page PDF report

Cigarettes As Litter (California, Florida, Hawaii, Massachusetts, Minnesota, South Carolina), July 21, 1998– 16.5 MB, 329 page PDF report

Proposed Development Program for Dispersible Cigarette Filters– Brown & Williamson (cigarette company) January 26, 1994

Cigarette Butt Degradability Task Force – Final Report– Coresta, August 2000, 2MB, 61 page PDF report

RJ Reynolds 1993 Memo Admission– “it is possible that conditions exist which would allow the tow portion of a cigarette filter to remain essentially intact for several years.”