Possible Adverse Environmental Effects Caused By Nanoparticles In Cosmetics/Personal Care Products
Using aquatic microbes as their “canary-in-a-cage,” scientists from Ohio have reported that nanoparticles now being added to cosmetics, sunscreens, and hundreds of other personal care products may be harmful to the environment.
Their report was part of symposia that included almost two dozen papers at the 237th National Meeting of the American Chemical Society where scientists grappled to understand the environmental and human health effects of nanotechnology. Hundreds of products utilizing these microscopic particles - 1/5,000th the diameter of a human hair - already are on the market. With many more poised for debut, scientists are seeking to avoid unwanted health and environmental effects in advance.
The study by Cyndee Gruden, Ph.D. and Olga Mileyeva-Biebesheimer focused on nano-titanium dioxide (nano-TiO2) particles found in cosmetics, sunscreens, and other personal care products. The particles are added to those products for their highly beneficial effects in blocking ultraviolet light in sunlight. Excess exposure can cause premature aging of the skin and skin cancer.
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