Professor Ragnar Lofstedt has written a very interesting and thought provoking paper “Risk versus Hazard Assessment – How to Regulate in the 21st Century”. The paper reflects upon the advantages and disadvantages of using risk assessments compared to hazard assessments of chemical compounds. It investigates the debate that has been going on in recent years in Europe between regulators, politicians, NGOs and industry on the subject.

This commentary will discuss some of the assumptions that the analysis rests on as well as some of the conclusions that are presented in the paper.

First, the commentary will discuss the definition and critique of the “risk assessment” approach that Lofstedt presents. The commentary here concludes that Lofstedt's analysis of risk assessment does not take sufficiently into account the fact that risks can not always be calculated in an exact way because uncertainty rather than certainty is the condition when analysing chemicals.