Today I am starting a new series of blog posts comprised of two parts, first, a monthly post (Mondays) on an environmental issue followed by a post (Wednesdays) suggesting solutions we can incorporate in our lives. The two posts are tied together, the solutions being relevant to the issue previously presented. So, here we go!
What’s wrong with plastic?
- it’s toxic to our bodies
- it piles up and damages our environment
How is it toxic?
- toxic additives are added to brittle plastics to make them pliable enough to use for food packaging, children’s toys, teethers, shower curtains, drinking straws, tupper ware containers, soft drink bottles, etc.
- traces of the chemicals can leach out of the plastic when it comes into contact with food
- some compounds leaching from food containers have been found to interfere with hormone functions and are suspected human carcinogens
- monomers used in the manufacture of plastic may be toxic and small amounts may remain trapped in the product
- some polymers may decompose into toxic substances when heated
- PBA is used in making polycarbonates which then act as an estrogen-like hormone that may leach into food, these estrogen-like hormones disrupt the physiologic function of natural hormones in our body
a monomer is a small molecule that may become chemically bonded to other monomers to form a polymer
a polymer is a term that commonly refers to plastic but is a large class of natural and synthetic materials with a variety of properties
a polycarbonate is a particular group of thermoplastic polymers used for molding plastic; their features include temperature resistance, impact resistance and optical properties
Environmental Issues
- plastics are durable and therefore degrade very slowly
- since the 1950s, one billion tons of plastic has been discarded and may persist for hundreds or even thousands of years
- burning plastic can release toxic fumes
- manufacturing of plastics often creates large quantities of chemical pollutants
Recycling Plastic
- recycling plastics has proven difficult
- it is difficult to automate the sorting process and therefore it is labour intensive
- resin identification codes are used to sort the plastic, common containers can be sorted from memory
- some products like cell phones use over a dozen different types and colors of plastics; in a case like this, the resources it would take to separate the plastics far exceed their value and the item is discarded
- on the positive side perhaps, developments are taking place in the field of Active Disassembly
- recycling certain types of plastics can be unprofitable, e.g polystyrene; un-recycled wastes are typically disposed of in landfills, incinerated or used to produce electricity at waste-to-energy plants
Which type of plastic does my product contain and what does it mean? Here’s a 2-page PDF with the codes from the American Chemistry Council.
Credit: Thank you to wikipedia for its extensive information on all things plastic. My starting point for this article was found by searching Plastic.
Check back Wednesday for some suggestions we can incorporate in our daily lives.



















