American cosmetic manufacturers have voluntarily stopped microplastics from entering the ocean.
Earlier this year (February 2014), scientists discovered large quantities of plastispheres in the ocean. They defined this new term, plastisphere, as a new research field to describe the close relationship between plastic debris and microbial communities in aquatic systems. Initially, scientists found over a thousand species of microorganisms attached to and living on microplastics in the ocean, including known dangerous pathogens found in animal and human habitats. While scientists haven't yet determined how these microorganisms survive on microplastics, they suggest they may utilize certain components of the microplastics as nutrients, or they may ingest the microplastics, mistaking them for food, and obtain nutrients as they pass through the digestive tract. These suspended plastispheres pose a serious threat to the marine food chain and human health, which is at the top of the food chain. Because the US wastewater treatment system cannot effectively intercept the plastic beads used in facial cleansing products to remove dead skin cells, it is estimated that up to 19 tons of these beads enter the wastewater treatment system annually. These microbeads, carried by the water flow, eventually enter the ocean and form plastispheres. In light of this, some cosmetic manufacturers in the United States have voluntarily stopped adding microbeads to their products, demonstrating their commitment to preventing microplastics from entering the ocean. The governments of Illinois and New York are also expected to draft legislation to ban similar exfoliating cleansers.