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  • European Union Risk Assessment Report: 1,2-benzenedicarboxylic acid, di-C9-11-branched alkyl esters, C10-rich and di-"isodecyl"phthalate (DIDP), CAS Nos: 68515-49-1 & 26761-40-0, EINECS Nos: 271-091-4 & 247-977-1. Series: 2nd PL, Vol 36


The report provides the comprehensive risk assessment of the substances 1,2- benzenedicarboxylic acid, di-C9-11-branched alkyl esters, C10-rich and di- "isodecyl"phthalate (DIDP). It has been prepared by France in the framework of Council Regulation (EEC) No. 793/93.

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 environmental risk assessment concludes that there is at present no concern for the aquatic ecosystem, the terrestrial ecosystem, the atmosphere or for microorganisms in the sewage treatment plant as well as for secondary poisoning.

The human health risk assessment concludes that there is no concern for workers and humans exposed via the environment. For consumers, there is concern in case DIDP should be used as a substitute for other phthalates in toys as a consequence of repeated exposure of infants and newborn babies arising from mouthing and sucking toys and baby equipment. In addition there is concern for infants in case of combined exposure.

The conclusions of this report will lead to risk reduction measures to be proposed by the Commission's 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 20785 EN (2003), 224pp.
Availability: Available free of charge online at:
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