Schedule 22, paragraph 4

A hazardous substance is any substance or group of substances that are toxic, persistent and liable to bio-accumulate, or that give rise to an equivalent level of concern. This includes in particular the following when they meet the criteria in sub-paragraph (1)— organohalogen compounds and substances which may form such compounds in the aquatic environment; organophosphorous compounds; organotin compounds; substances and preparations, or the breakdown products of such, which have been proved to possess carcinogenic or mutagenic properties or properties which may affect steroidogenic, thyroid, reproduction or other endocrine-related functions in or via the aquatic environment; hydrocarbons and organic substances; cyanides; metals (in particular, cadmium and mercury) and their compounds; arsenic and its compounds; biocides and plant protection products. The regulator must publish a list of substances that it considers to be hazardous substances.

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Source: legislation.gov.uk · retrieved 2026-07-30