Complaints relating to the handling of carbonless copy paper in Sweden.

No specific relationship could be established between complaints and chemicals used in the brands of carbonless copy paper on the Swedish market. The symptoms were non-specific and very variable. Any office encountering these problems must have them analyzed separately to find the local explanation. Carbonless copy paper has been in widespread use for more than 20 years. Although several reports have been published about suspected health hazards from such papers, none has been able to prove any relationship between carbonless copy papers in general and health hazards (see bibliography). That all chemicals in a product are absolutely safe can never be proved, but if all efforts to prove them dangerous fail, the suspicions of their hazards must diminish. Investigations must concentrate on finding the local cause of the trouble.