When an organism absorbs a chemical substance at a greater rate than by which it is eliminated.
The environmental properties and fate of D5 have been subject to extensive study for many years, including recent environmental monitoring programmes in North America, Japan and Europe. The results of this continuous research demonstrate that the substance does not behave as a so-called PBT (persistent, bioaccumulating and toxic substance) in the environment as D5 is used today.
Committed to the responsible use of silicones, the silicones industry continues to evaluate the science behind its materials through rigorous research programs and regularly communicates research findings to customers, government officials and the scientific community.
Highly volatile, D5 evaporates rapidly and degrades in air under the influence of sunlight. The small amounts that may remain in soil degrade, and in water they hydrolyze. Ultimately, the substance becomes silica (sand), carbon dioxide and water. For more details on the environmental properties of D5 please visit the Science section of this website.
In February 2012, the Canadian Environment Minister endorsed the findings of an independent expert scientific panel, known as a Board of Review, which concluded that siloxane D5 is not harmful for the environment.
The review overruled an earlier assessment by Environment Canada in 2008, which at that time identified the substance as possibly warranting environmental measures.
The Board of Review was composed of a panel of three renowned experts appointed by the Canadian Environment Minister. The panel conducted a comprehensive scientific evaluation to assess all available environmental data on D5, including two weeks of testimony from a dozen additional experts. The Board's final report, which was released in October 2011, concluded that “Siloxane D5 does not pose a danger to the environment or its biological diversity.”
Furthermore, the Board found that “based on the information presented, Siloxane D5 will not pose a danger to the environment or its biological diversity in the future.” Furthermore, the Board found that “based on the information presented, Siloxane D5 will not pose a danger to the environment or its biological diversity in the future.”
There is nothing more important to the silicones industry than the safety of its products. More than 50 years of scientific research have been dedicated to assess the safety of silicones and siloxanes relative to workers, consumers, the environment and manufacturing processes. The results of this continuous research and testing demonstrate that silicones and siloxanes, including D5, are safe in their diverse and vital applications.
Regulatory agencies in North America and in Europe have reviewed the scientific data and confirmed the safety of D5 for human health.
In addition, expert scientific panels such as the U.S. Cosmetic Ingredient Review (CIR) and the EU Scientific Committee for Consumer Safety (SCCS) have concluded that the substance does not pose a risk to human health from its use in cosmetics.
Committed to the responsible use of silicones, the industry continues to evaluate the science behind the materials through several rigorous research programs. Research methods include computer modeling, laboratory testing, environmental monitoring and other approaches. The silicone industry cooperates closely with regulatory agencies and expert scientific panels in North America, Europe and Japan, and share new research data with them as it becomes available.