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Long-term algal toxicity of oxidant treated ballast water.
Ziegler, Gregory; Tamburri, Mario N; Fisher, Daniel J.
Afiliación
  • Ziegler G; University of Maryland, College of Agriculture and Natural Resources, Wye Research and Education Center, Queenstown, MD, USA. Electronic address: gziegle1@umd.edu.
  • Tamburri MN; University of Maryland Center for Environmental Science, Chesapeake Biological Laboratory, Solomons, MD, USA.
  • Fisher DJ; University of Maryland, College of Agriculture and Natural Resources, Wye Research and Education Center, Queenstown, MD, USA; University of Maryland, College of Agriculture and Natural Resources, Department of Environmental Science and Technology, College Park, MD, USA.
Mar Pollut Bull ; 133: 18-29, 2018 Aug.
Article en En | MEDLINE | ID: mdl-30041305
National and international regulations require that ships' ballast water is treated to minimize the risk of introducing potentially invasive species. A common approach employed by commercial ballast water management systems is chlorination. This study presents the algal toxicity findings for three chlorination-based BWMS and their implications to environmental safety of port waters receiving treated ballast water from ships. Discharged treated ballast water from all three BWMS was toxic to algae with IC25s (25% growth inhibition) ranging from 9.9% to 17.9%, despite having total residual oxidant concentrations below 0.02 mg/l, based on Whole Effluent Toxicity assays. When held at 4 °C, some of the ballast water samples continued to exhibit toxic effects with no observed effect concentrations as low as 18% after a 134 day holding time. Thirteen individual disinfection by-products were measured above the detected limit at the time of discharge. No correlation between DBPs and algal toxicity was observed.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Navíos / Contaminantes Químicos del Agua / Diatomeas / Halogenación / Haptophyta Idioma: En Revista: Mar Pollut Bull Año: 2018 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Navíos / Contaminantes Químicos del Agua / Diatomeas / Halogenación / Haptophyta Idioma: En Revista: Mar Pollut Bull Año: 2018 Tipo del documento: Article Pais de publicación: Reino Unido