1. The following families and groups of substances are listed for the purposes of regulation 3(c)(i)—
organohalogen compounds and substances which may form such compounds in the aquatic environment;
organophosphorus compounds;
organotin compounds;
substances which possess carcinogenic, mutagenic or teratogenic properties in or via the aquatic environment;
mercury and its compounds;
cadmium and its compounds;
mineral oil and other hydrocarbons;
cyanides.