Plastiques et environnement Un peu d'anglais |
(Extraits...)
The global consumption of bottled water reached 154 billion liters (41 billion gallons) in 2004, up 57 percent from the 98 billion liters consumed five years earlier. Even in areas where tap water is safe to drink, demand for bottled water is increasing—producing unnecessary garbage and consuming vast quantities of energy. Although in the industrial world bottled water is often no healthier than tap water, it can cost up to 10,000 times more. At as much as $2.50 per liter ($10 per gallon), bottled water costs more than gasoline.....
(Extraits...)
Prof. William Shotyk and co-workers at the Institute of Environmental Geochemistry, University of Heidelberg, measured the abundance of antimony in fifteen brands of bottled water from Canada and forty-eight from across Europe
Bottled waters in PET containers are contaminated with antimony (Sb), a potentially toxic heavy metal with no known physiological function. Antimony trioxide is used as a catalyst in the manufacture of PET (polyethylene terephthalate), and PET typically contains several hundred mg/kg of Sb. For comparison, most of the rocks and soils at the surface of the earth contain less than 1 mg/kg Sb.
Created with the Personal Edition of HelpNDoc: Easy EPub and documentation editor