First ever measurements of exposure to ultra-fine particulates in the workplace

In October 2004, T.A.J. Kuhlbusch, S. Neumann and H. Fissan published the results of the first systematic investigation of the size, quantity and composition of fine and ultra-fine particulates in filling stations in the carbon black industry in a paper in the Journal of Occupational and Environmental Hygiene. This study was commissioned by the International Carbon Black Association (ICBA). Ultra-fine particulates are defined as those measuring less than 100 nanometers. The term is used synonymously with nanoparticles.

The ICBA is an association of leading carbon black producers. Its purpose is to initiate and provide funding for research into health and environmental issues relating to carbon blacks in collaboration with independent research institutes.

The scientists carried out their evaluation at three carbon black facilities, including one Evonik facility. Measurements were taken in areas where carbon black beads are bagged up, both during operation and outside working hours. They did not find any additional product-related release of ultra-fine carbon-black particulates, i.e. nanoparticles smaller than 100 nm. Conclusion: Carbon blacks do not cause additional exposure to ultra-fine particulates in the workplace.

Further Information

Evonik's Nano Guideline