Study: Inhaled Nanoparticles Take Direct Route to Brain

Read the full article in Occupational Health & Safety.

When rats breathed in nano-sized manganese oxide particles at a concentration routinely inhaled by factory welders, the tiny particles followed a rapid and efficient pathway from the nasal cavity to several regions of the brain, according to a study in the August issue of Environmental Health Perspectives.

Additional information on the Environmental Health Perspectives article, “Translocation of Inhaled Ultrafine Manganese Oxide Particles to the Central Nervous System,” can be found at

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