Professor Christina Rudén has been appointed Inquiry Chair by the Swedish Government with the task to investigate how chemicals risk assessments can take unintentional mixtures into account, the so called “combination effect”, and how we can work with grouping of chemicals for regulatory decision making.

Among other things, the Inquiry Chair will:

  • identify opportunities, obstacles and previous measures in relevant EU legal instruments for dealing with substances by group;
  • propose strategies for future group-based regulation and, where necessary, any amendments to relevant EU legal instruments for dealing with substances by group;
  • sum up the state of scientific knowledge, identify opportunities and obstacles in different relevant EU legal instruments and previous measures in the area of combination effects; and
  • propose strategies to enable regulation based on, or taking account of, combination effects, propose other strategies to reduce the risks and, where necessary, propose amendments to relevant EU legal instruments.

The Inquiry is to present its report by 29 September 2019.

Contact:   +46 704 933101

Link to the ToR for the Inquiry in Swedish and in English.


Contact information

Visiting addresses:

Geovetenskapens Hus,
Svante Arrhenius väg 8, Stockholm

Arrheniuslaboratoriet, Svante Arrhenius väg 16, Stockholm (Unit for Toxicological Chemistry)

Mailing address:
Department of Environmental Science
Stockholm University
106 91 Stockholm

Press enquiries should be directed to:

Stella Papadopoulou
Science Communicator
Phone +46 (0)8 674 70 11

Project Info

Project start: 2018

Funded by

Swedish Government