(ANNEX of Council Directive 76/464/EEC)

List I contains certain individual substances which belong to the following families and group of substances, selected mainly on the basis of their toxicity, persistence and bioaccumulation, with the exception of those which are biologically harmless or which are rapidly converted into substances which are biologically harmless:

1. organohalogen compounds and substances which may form such compounds in the aquatic environment,
2. organophosphorus compounds,
3. organotin compounds,
4. substances in respect of which it has been proved that they possess carcinogenic in or via the aquatic environment
5. mercury and its compounds,
6. cadmium and its compounds,
7. persistent mineral oils and hydrocarbons of petroleum origin, and
8. (for the purpose of implementing Articles 2, 8, 9 and 14 of this Directive) persistent synthetic substances which may float, remain in suspension or sink and which interfere with any use of the water.

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