Plastic is a composite of a resin (man-made polymer) and a number of additives. The resin serves as the backbone of plastic and determines the major properties and potential uses of plastics. Additives are used to modify the physical and chemical properties of plastics.
The impacts of improperly discarded plastics and microplastics on marine life, and the leaching of additives in our food and drink, as well as in the environment are well publicized. In addition, these plastics pose significant health risks. Some plastic additives will be identified and their effects on human health and the environment will be discussed.