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