# The Environmental Permitting (England and Wales) Regulations 2016, Paragraph 4: Meaning of “hazardous substance”


(1) 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.
(2) This includes in particular the following when they meet the criteria in sub-paragraph (1)—
(a) organohalogen compounds and substances which may form such compounds in the aquatic environment;
(b) organophosphorous compounds;
(c) organotin compounds;
(d) 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;
(e) hydrocarbons and organic substances;
(f) cyanides;
(g) metals (in particular, cadmium and mercury) and their compounds;
(h) arsenic and its compounds;
(i) biocides and plant protection products.
(3) The regulator must publish a list of substances that it considers to be hazardous substances.

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Source: https://www.legislation.gov.uk/ukdsi/2016/9780111150184/schedule/22/paragraph/4 (the official version)
Page: https://openlegislation.uk/draft-environmental-permitting-england-and-wales-regulations-2016/schedule-22/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.