Toxic Nation E-News: The December 2007 issue from Environmental Defence

Over the past month Toxic Nation has received a slew of phone calls and emails requesting information on the different plastics we use daily and their relative safety. The following is a description of each recycling number, its use and some potential hazards.

  1. PETE: Polyethylene terephthalate ethylene, used for soft drink, juice, water, detergent, cleaner and peanut butter containers. Scientists advise against the repeated use of plastic water bottles made from plastic type #1 PETE as there is evidence to suggest that such bottles leach a compound known as DEHA, which is classified by the EPA as a possible human carcinogen, as well as acetaldehyde, which has received the same designation from the International Agency for Research on Cancer.
  2. HDPE: High density polyethylene, used in opaque plastic milk and water jugs, bleach, detergent and shampoo bottles and some plastic bags.
  3. PVC or V: Polyvinyl chloride, used for cling wrap, some plastic squeeze bottles, cooking oil and peanut butter jars, detergent and window cleaner bottles.
  4. LDPE: Low density polyethylene, used in grocery store bags, most plastic wraps and some bottles.
  5. PP: Polypropylene, used in most Rubbermaid, deli soup, syrup and yogurt containers, straws and other clouded plastic containers, including some baby bottles.
  6. PS: Polystyrene, used in Styrofoam food trays, egg cartons, disposable cups and bowls, carryout containers and opaque plastic cutlery.
  7. Other: Usually polycarbonate plastic, used in most plastic baby bottles, 5-gallon water bottles, “sport” water bottles, some metal food can liners, clear plastic “sippy” cups and some clear plastic cutlery. New bio-based and bio-degradable plastics may also be labeled as #7.

Plastic with bisphenol A is labeled in the #7 category, which also includes a wide variety of plastics and plastic mixtures that fall into the 'other' category. Unless this #7 is followed by the letters 'PC' (polycarbonate) there's no sure way to tell if the container contains bisphenol A or not.

Avoid using #7 plastics altogether and opt for safer choices for food and beverage storage. These better options include polypropylene (#5 PP), high density polyethylene (#2 HDPE), and low density polyethylene (#4 LDPE).

Information provided from various sources, including the Smart Plastics Guide of the Institute for Agriculture and Trade Policy in the U.S.