Where do microplastics come from

Microplastics originate from a variety of sources and are ubiquitous in the environment. Andrew Huberman explains that microplastics and nanoplastics come from everyday items like plastic bags, storage containers, bottle caps, utensils, and even textiles. They are also released from road tires, paints, automotive parts, and packaging materials like those used for foods and beverages. These particles are not only present on land but also in the air we breathe and water we consume, raining down from the sky and entering water systems, including seawater, where they contribute to pollution 1.

Moreover, plastic bottles, especially when heated, contribute significantly to microplastics found in bottled water, which contains high levels of these particles 2. Plastic linings in products like paper coffee cups and microwave popcorn bags also lead to microplastic exposure when hot liquids or items are used 3.