Activity 3.3.3 - My Plastic Use
Definition of Microplastics Microplastics are defined as small plastic particles or fibers less than 5 millimeters in size. These particles are derived from petroleum-based products and are not biodegradable. Microplastics can either be primary, meaning they are intentionally manufactured at small sizes for products like exfoliating scrubs, or secondary, which are formed when larger plastic objects degrade over time due to environmental factors such as UV radiation or oceanic currents. Where Microplastics Are Found Microplastics are prevalent across a variety of environments, with the majority being concentrated in aquatic ecosystems. They are found in oceans, rivers, lakes, and even in wastewater treatment plants. Marine environments, such as beaches and shorelines, are common places where visible plastic waste accumulates. Plastic waste, however, isn’t confined to coastlines—it is also detected in freshwater systems, agricultural soils, and even in the air we breathe. Plastic p...