London (01.06.17) – An eight-page letter has been sent to the President of the European Commission by Dr, Christopher J, Portier (former Director of the US National Center for Environmental Health, of the US Agency for Toxic Substances and Disease Registry, a Former Associate Director and of the US National Institute of Environmental Health Sciences, formerly Associate Director of the US National Toxicology Program and a Fellow of both the American Statistical Association and of the International Statistics Institute (1).

Dr Portier points out to the President that the European Food Safety Agency (EFSA) and the European Chemical Agency (EChA) have completed their assessments of the carcinogenic potential of glyphosate and concluded that the evidence does not support a classification for glyphosate. The raw data for the animal cancer studies for glyphosate have been released, and a reanalysis of these data show eight instances where significant increases in tumour response following glyphosate exposure were not included in the assessment by either EFSA or EChA. This suggests that the evaluations applied to the glyphosate data are scientifically flawed, and any decisions derived from these evaluations will fail to protect public health. However, the Bloomberg media agency suggest that the EU Commission could be preparing to recommend reauthorising glyphosate following the ECHA findings (3).

Dr. Portier therefore asks that the evaluations by both EFSA and EChA be repeated for all toxicological endpoints and the data underlying these evaluations be publicly released.

On the other hand, the Süddeutsche Zeitung published an interesting interview on the glyphosate approval process with Roland Solecki (head of the department responsible for the safety of pesticides) of the German Federal Institute for Risk Assessment, the agency responsible to the EU Member States for evaluating glyphosate (2). And there followed a comment on the interview…..(4)


1. C.R Portier (28.05.17). Letter to Jean Claude Juncker, President of the European Commission (

2. Interview with Jan Heidtmann (18.04.17). Eine Frage der Auswertung. Süddeutsche Zeitung (

3. Stephen Gardner (17.05.17). EU to consider reauthorizing glyphosate pesticide through 2027. Bloomberg BNA (

4. Riskmonger (07.05.17). Glyphosate, beer and Monsanto: An interview with the BfR’s Roland Solecki. The Risk-Monger (


  A request for more (last?) words on glyphosate