نتایج جستجو برای: metal toxicity

تعداد نتایج: 311185  

Journal: :Environmental toxicology and chemistry 2010
Travis S Schmidt William H Clements Katharine A Mitchell Stanley E Church Richard B Wanty David L Fey Philip L Verplanck Carma A San Juan

Two toxic-unit models that estimate the toxicity of trace-metal mixtures to benthic communities were compared. The chronic criterion accumulation ratio (CCAR), a modification of biotic ligand model (BLM) outputs for use as a toxic-unit model, accounts for the modifying and competitive influences of major cations (Ca²(+), Mg²(+), Na(+), K(+), H(+)), anions (HCO₃⁻, CO²⁻₃ ,SO²⁻₄, Cl⁻, S²⁻) and dis...

Journal: :Environmental pollution 2017
Cristina M Alves Carlos M H Ferreira Eduardo V Soares Helena M V M Soares

Scientifically sound risk assessment strategies and derivations of environmental quality standards for metals present in freshwater environments are currently hampered by insufficient chronic toxicity data collected from natural ecosystems, as well as inadequate information on metal speciation. Thus, the aim of the present study was to evaluate the impact of freshwater containing multiple metal...

2017
Ellen D. G. Michiels Lucia Vergauwen An Hagenaars Erik Fransen Stefan Van Dongen Steven J. Van Cruchten Lieven Bervoets Dries Knapen

Accurately assessing the toxicity of complex, environmentally relevant mixtures remains an important challenge in ecotoxicology. The goal was to identify biological effects after exposure to environmental water samples and to determine whether the observed effects could be explained by the waterborne metal mixture found in the samples. Zebrafish embryos were exposed to water samples of five dif...

Journal: :Environmental Health Perspectives 2000

Journal: :Journal of Environmental Management 2021

Heavy metals frequently occur as silent poisons present in our daily diet, the environment we live and products use, leaving us victims to various associated drastic health ecological bad effects even meagre quantities. The prevalence of heavy can be traced from children's toys, electronic goods, industrial effluents, pesticide preparation, drinking water some instances; necessitating methods r...

Journal: :Japan journal of water pollution research 1987

Journal: :Archives of Industrial Hygiene and Toxicology 2014

Journal: :Afyon Kocatepe University Journal of Sciences and Engineering 2013

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