# Commission Regulation (EU) No 283/2013 of 1 March 2013 setting out the data requirements for active substances, in accordance with Regulation (EC) No 1107/2009 of the European Parliament and of the Council concerning the placing of plant protection products on the market (Text with EEA relevance), Division 8.2.5.4: Sediment dwelling organisms

Extent: E+W+S+N.I.

When accumulation of an active substance in aquatic sediment is indicated or predicted by environmental fate studies, the impact on a sediment-dwelling organism shall be assessed. The chronic risk to Chironomus riparius or Lumbriculus spp. shall be determined. An appropriate alternative test species may be used where a recognised guideline is available. The active substance shall be applied to either the water or the sediment phase of a water/sediment system and the test shall take account of the major route of exposure. The key endpoint from the study shall be presented in terms of mg substance/kg dry sediment and mg substance/L water and the EC10 and EC20 shall be reported together with the NOEC.

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Source: https://www.legislation.gov.uk/eur/2013/283/annex/section/8/division/8.2/division/8.2.5/division/8.2.5.4 (the official version)
Page: https://openlegislation.uk/eu-regulation-2013-283/annex/section-8/division-8.2/division-8.2.5/division-8.2.5.4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.