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Web Date: September 30, 2010

TiO2 Nanoparticles in the Environment

Nanomaterials: The ingredient in brilliant white pigments may disrupt aquatic ecosystems' nitrogen cycle
Department: Science & Technology
News Channels: Environmental SCENE
Keywords: nanotechnology, titanium dioxide, ecosystem, cyanobacteria, nitrogen cycle, carbon cycle, toxicology

Products coated in titanium dioxide nanoparticles (nTiO₂) shine pure white. So since the 1990s manufacturers have added the chemicals to a wide range of consumer products, such as cosmetics, paints, sunscreens, and even foods. Now nTiO₂ often discharges into open waterways through treated sewage effluent. A new study reports that this nanomaterial can stress photosynthetic organisms, which could lead to the disruption of nitrogen and carbon cycles in aquatic ecosystems (Environ. Sci. Technol., DOI: . . .

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