Get A+ with YaClass!
Register now to understand any school subject with ease and get great results on your exams!

Theory:

Toxic effects of plastics:
 
The usage of plastics in our daily lives can be hazardous for two reasons.
  • The first reason is that some varieties of plastic carry dangerous compounds to our health.
  • The second reason is that many plastics are intended to be used only once. As a result, that could adversely affect the environmental pollution.
(a). Harmful plastics:
  
Toxic and harmful chemicals are used in three types of plastic. These chemicals are added to plastics to improve their flexibility, strength, colour, fire resistance, and UV resistance.
Example:
PVC (resin code #\(3\)), PS (resin code #\(6\), also known as Thermocol), and PC/ABS (resin code #\(7\)) are the three dangerous plastics.
PVC - Polyvinyl Chloride plastics
  • Heavy metals (cadmium & lead) are combined with PVC.
  • Phthalates (chemical additives) clone our hormones.
  • Igniting PVC releases dioxins (one of the most toxic chemicals known to humans).
shutterstock_1909404844.jpg
 
PS - Polystyrene plastics
  • Styrene is a basic block of this plastic and may induce cancer
  • It takes a very long time (\(100\) - \(1\) million years) to decompose.
  • Vast amounts of toxic styrene leak into our food and drinks when they are hot or oily.
shutterstock_1650733639.jpg
Polystyrene plastic example (Termocol)
 
PC - Polycarbonate plastics
  • PC plastic includes Bisphenol A (BPA).
  • BPA is emitted by PC products used in the preparation of foods and drinks.
  • BPA alters the way our bodies work by increasing or decreasing certain hormones.
ABS - Acrylonitrile Butadiene Styrene
  • Styrene is harmful to our eyes, skin, digestive system, and lungs.
  • BFRs (Brominated Flame Retardants) are frequently used.
  • According to studies, this plastic releases toxic chemicals.
(b) One-time use of plastic
Plastics, both used and thrown away, cause both short- and long-term environmental damage.
Throwaway plastic items account for half of all plastic produced today. 
Single time used plastics cause health issues for humans, plants, and animals.
Example:
one-use.jpg
Use and throw away or single-time use plastics.
  
Plastic cups, plates, carry bags, straws, water pouches, plastic sheets and cutlery used for food wrapping.