Landfill leachate ecotoxicity experiments using Lemna minor

S.M. Mackenzie, S. Waite, Daniel J. Metcalfe, Christopher Joyce

Research output: Contribution to journalArticlepeer-review


The effects of varying concentrations of landfill leachate on the growth, frond area, chlorophyll content and fluorescence of four strains of Lemna minor were assessed. Growth fluorescence and frond chlorophyll content decreased after seven days exposure to leachate, although responses differed between the strains and end parameters. A L. minor bioassay was used to assess leachate toxicity and the effectiveness of a constructed wetland treatment system and pre-treatment aeration and settlement in reducing toxicity. Pre-treatments were found to significantly reduce toxicity, so their incorporation in any treatment system may increase pollutant stripping.
Original languageEnglish
Pages (from-to)171-179
Number of pages9
JournalWater, Air, and Soil Pollution: Focus
Issue number3
Publication statusPublished - May 2003


  • bioassay
  • bioremediation
  • chlorophyll fluorescence
  • constructed wetlands
  • ecotoxicity
  • landfill leachate
  • Lemna minor


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