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The objective of the project was to investigate the likelihood of children being exposed to aniline when playing with sidewalk chalk. A recent investigation performed by Öko-Test form the basis of this project, since it was claimed that red coloured chalk could contain or release aniline.
A total of 14 products of sidewalk chalk were collected from the Danish market. The red coloured chalk was subsequently selected for analysis. For 12 out of 14 products aniline was determined in concentrations below 5mg/kg in the red coloured chalk. This aniline exists either as free aniline or originate from azo-colorants contained in the chalk. For two products aniline could not be detected.
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