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The report provides the comprehensive risk assessment of the substance 1,4-dioxane. It has been prepared by the Netherlands in the frame of Council Regulation (EEC) No. 793/93 on the evaluation and control of the risks of existing substances, following the principles for assessment of the risks to man and the environment, laid down in Commission Regulation (EC) No. 1488/94.

The evaluation considers the emissions and the resulting exposure to the environment and the human populations in all life cycle steps. Following the exposure assessment, the environmental risk characterisation for each protection goal in the aquatic, terrestrial and atmospheric compartment has been determined. For human health the scenarios for occupational exposure, consumer exposure and humans exposed via the environment have been examined and the possible risks have been identified.

The human health risk assessment for 1,4-dioxane concludes that there is at present concern for workers. There is at present no concern for consumers and humans exposed via the environment. The environmental risk assessment for 1,4-dioxane concludes that there is at present no concern for atmosphere, aquatic ecosystem, terrestrial ecosystem or for microorganisms in the sewage treatment plant.

The conclusions of this report will lead to risk reduction measures to be proposed by the Commissions committee on risk reduction strategies set up in support of Council Regulation (EEC) No. 793/93

Additional information

Authors: HANSEN B G ET AL (EDITORS), European Commission, Joint Research Centre, Institute for Health and Consumer Protection, European Chemicals Bureau, Ispra (IT)
Bibliographic Reference: EUR 19833 EN (2002), pp. 132;
Availability: Available free of charge online at: A printed version of the report will later be available for sale from EUR-OP sales agents.
ISBN: ISBN 92-894-1252-6
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