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Risk factors

What is a toxic risk?

The toxic risk is due to two factors: the inherent toxicity of a product and the level of exposure of persons. The risk also depends on the individual susceptibility. The nature of the processes and procedures determine the possibility that nanoparticles come into contact with the organism. The quality of confinement, the means of protection, and the procedures allow us to reduce the potential risk. 

In the absence of stable data on toxicity, controlling the health risk is based on controlling the exposure, which should be as limited as possible.

What are the toxic effects parameters?

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Particles, exposure and organism.

The main factors that determine the toxic effects of nanoparticles on the body are linked to:

  • nanoparticles: physical and chemical characteristics, chemical composition, production methods and surface treatment,
  • the exposure: quantities of nanoparticles in contact with the organism, the routes, frequency, and duration of exposure,
  • the organism exposed: individual susceptibility, physical activity, evolution of nano-objects after penetration.