# The Water Environment (Controlled Activities) (Scotland) Regulations 2011, Paragraph 12


Substances which have an unfavourable influence on the oxygen balance (and can be measured using parameters such as biochemical oxygen demand (BOD), and chemical oxygen demand (COD) etc.).

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Source: https://www.legislation.gov.uk/sdsi/2011/9780111012963/schedule/1/paragraph/12 (the official version)
Page: https://openlegislation.uk/draft-water-environment-controlled-activities-scotland-regulations-2011/schedule-1/paragraph-12
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.