Ecotoxicological assessments and the setting of limit values for chemicals in the environment

摘要

The Committee on the Setting of Limit Values for Chemicals held its first open conference in Denmark in March 1992 at Mogenstrup Kro, Zealand. The conference proceedings were entitled 'Risk Management and Risk Assessment in Different Sectors in Denmark'. The conference focused on risk assessment and the setting of limit values for chemicals in connection with human exposure to chemicals. The conference held in January 1996, which is covered by the present proceedings, dealt with the exposure of the environment to chemicals and the state-of-the-art as well as perspectives of ecotoxicological research. Special emphasis was placed on the illustration and discussion of the problems that have to be solved in order to secure satisfactory levels of protection of soil and aquatic environments in connection with exposure to chemicals. Also, problems connected with exposure through the atmosphere were discussed and exemplified by the work on the setting of limit values for tropospheric ozone. Furthermore, the global problems pertaining to what is believed to be the greenhouse effect and the degradation of the stratospheric ozone layer as well as the damage to crops caused by ozone were mentioned. (au)