daphnia test News

  • EPA Issues Proposed and Final HPV Test Rules; EPA Seeks Innovative Use of SNURs

    The October 21, 2011, Federal Register includes two test rules concerning high production volume (HPV) chemicals: a final test rule for certain chemicals from the third group, and a proposed test rule and proposed significant new use rule (SNUR) for the fourth group of chemicals. See 76 Fed. Reg. 65385 and 65580, respectively. The proposed "SNUR plus test rule" represents a ...


    By Acta Group

  • EPA Issues Proposed and Final HPV Test Rules; EPA Seeks Innovative Use of SNURs

    The October 21, 2011, Federal Register includes two test rules concerning high production volume (HPV) chemicals: a final test rule for certain chemicals from the third group, and a proposed test rule and proposed significant new use rule (SNUR) for the fourth group of chemicals. See 76 Fed. Reg. 65385 and 65580, respectively. The proposed "SNUR plus test rule" represents a novel approach for ...


    By Bergeson & Campbell, P.C.

  • Waterflea genes indicate environmental change

    The waterflea (Daphnia pulex) is considered a keystone species in freshwater ecosystems and has been used for decades to diagnose the presence of problematic chemicals. This tiny crustacean is the first of its kind to have its genetic code sequenced and analysed, revealing the most gene-packed animal characterised to date. The 200 million-base genome of the waterflea (Daphnia pulex) was described ...


  • Ovivo Bongo Pilot makes Spokane, WA a believer of OVIVO drum screen technology

    The Ovivo Bongo fine screen was developed using a multitude of proven components and screening design technologies. The Bongo drum screen normally provides dual aperture screening from 5.0mm influent coarse screening down to 0.25mm fine screening in a dual aperture, single drum treatment configuration. One of its many uses is to protect membrane systems from large and small debris entering a ...

  • TOXcontrol-article in Elsevier – Science of total environment

    A new system for monitoring toxicity TOXcontrol® (MicroLAN BV, The Netherlands) has been used to assess the toxicity of a selection of priority or emergent compounds in the laboratory. In this study, inhibition curves and EC50 – Effective Concentration causing 50% inhibition – of selected compounds (including pesticides, pharmaceuticals, surfactants and metals commonly detected in ...


    By microLAN B.V.

  • ASTM E1366 - 11 standard practice for standardized aquatic microcosms: fresh water

    A microcosm test is conducted to obtain information concerning toxicity or other effects of a test material on the interactions among three trophic levels (primary, secondary, and detrital) and the competitive interactions within each trophic level. As with ...


    By ASTM International

  • Polystyrene nanoparticles affect fish behaviour and metabolism

    Fish fed polystyrene nanoparticles are less active and show changes to their brains and metabolism, according to a study by Swedish and Danish researchers. The findings suggest that nanoparticles in the environment could have a major impact on fish and aquatic ecosystems. Nanoparticles are increasingly used in consumer products, such as cosmetics, and enter the environment via sewage systems. ...

  • Denmark Posts Several Publications Concerning Nanomaterials

    On November 10, 2015, the Danish Environmental Protection Agency posted the following publications concerning nanomaterials: Environmental assessment of nanomaterial use in Denmark: This is the concluding report of the project “Nanomaterials — ...


    By Bergeson & Campbell, P.C.

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