Combined effects of metals; an ecotoxicological evaluation

Enserink, E.L.; Maas-Diepeveen, J.L.; Leeuwen, Cornelis van

doi:10.1016/0043-1354(91)90043-p

Cited by 169 publications

(96 citation statements)

References 21 publications

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“…1. The concentration Á/response curve of N. integer for a mixture of six metals at different salinities (5, 10, 15 and 25). able to the value found by Enserink et al (1991) of 1.8 (0.89 Á/3.1) T.U. at which a 50% mortality was observed in D. magna juveniles exposed to a mixture of eight metals.…”

Section: Discussionsupporting

confidence: 56%

“…Different studies indicate additive effects of metals and organic compounds when occurring in a mixture (Altenburger et al, 1996;Sharma et al, 1999;Warne and Hawker, 1995). For Daphnia magna for example, Enserink et al (1991) found that a mixture of metals present in a concentration well below their individual chronic values can still elucidate chronic effects on growth and reproduction. For the marine environment, however, information on this subject is limited.…”

Section: Introductionmentioning

confidence: 99%

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The toxicity of metal mixtures to the estuarine mysid Neomysis integer (Crustacea: Mysidacea) under changing salinity

Verslycke

Vangheluwe²,

Heijerick³

et al. 2003

Aquatic Toxicology

138

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Water quality criteria are mainly based on data obtained in toxicity tests with single toxicants. Several authors have demonstrated that this approach may be inadequate as the joint action of the chemicals is not taken into account. In this study, the combined effects of six metals on the European estuarine mysid Neomysis integer (Leach, 1814) were examined. Acute 96-h toxicity tests were performed with mercury, copper, cadmium, nickel, zinc and lead, and this as single compounds and as a mixture of all six. The concentrations of the individual metals of the equitoxic mixtures were calculated using the concentration Á/addition model. The 96-h LC50's for the single metals, at a salinity of 5, ranged from 6.9 to 1140 mg/l, with the following toxicity ranking: Hg /Cd /Cu /Zn/Ni /Pb. Increasing the salinity from 5 to 25 resulted in lower toxicity and lower concentrations of the free ion (as derived from speciation calculations) for all metals. This salinity effect was strongest for cadmium and lead and could be attributed to complexation with chloride ions. The toxicity of nickel, copper and zinc was affected to a smaller extent by salinity. The 96-h LC50 for mercury was the same for both salinities. In order to evaluate the influence of changing salinity conditions on the acute toxicity of metal mixtures, tests were performed at different salinities (5, 10, 15 and 25). The 96-h LC50 value (1.49 T.U.) of the metal mixture, at a salinity of 5, was clearly lower than the expected value (6 T.U.) based on the nonadditive hypothesis, thus confirming the additive effect of these metals in the marine/estuarine environment. Changing salinity had a profound effect on the toxicity of the mixture. The toxicity clearly decreased with increasing salinity until 15. Higher salinities (25) had no further influence on the 96-h LC50 of the mixture which is situated at a value between 4.4 and 4.6. Finally, the relative sensitivity to the selected metals was compared with the relative sensitivity of the commonly used mysid Americamysis ( 0/Mysidopsis ) bahia . #

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Section: Discussionsupporting

confidence: 56%

Section: Introductionmentioning

confidence: 99%

The toxicity of metal mixtures to the estuarine mysid Neomysis integer (Crustacea: Mysidacea) under changing salinity

Verslycke

Vangheluwe²,

Heijerick³

et al. 2003

Aquatic Toxicology

138

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show abstract

“…A titre d'exemple, le tableau 4 compare les concentrations létales pour les daphnies (LC50 = concentration conduisant à une mortalité de 50 % de la population) et les concentrations conduisant à des inhibitions de croissance pour la même espèce (EC50 = concentration correspondant à 50 % d'inhibition de croissance). Il a été construit d'après [ENSERINK et al, 1991] (seuils de mortalité et d'inhibition de croissance), [COSSA et FICHT, 1991] (concentrations dans la Seine à…”

Section: Flottantsunclassified

“…Il est cependant nécessaire de tenir compte de la synergie entre les polluants (par exemple, d'après [ENSERINK et al, 1991], la toxicité conjointe de plusieurs métaux semble être légèrement supérieure à la somme des toxicités de chacun), d'éventuels effets sub-létaux, ainsi que des effets d'accumulation le long de la chaîne alimentaire.…”

Section: Poses Et [Flores-rodriguez 1992] (Concentrations Dans Des unclassified

La pollution due aux rejets urbains par temps de pluie : impacts sur les milieux récepteurs

Truchot¹,

Chocat

Cathelain

et al. 1994

La Houille Blanche

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“…The necessity to study the ecotoxicological impact of mixture of pollutants on aquatic ecosystems is increasing worldwide (Shaw et al, 2006). The simultaneous exposure to several metals might lead to synergistic or antagonistic effects (Enserink et al, 1991). For example, Hanstčn et al (1996) found that Mn (400 µg·L −1 ) had no effect on Cu and Cd, but increased the toxicity of Zn.…”

Section: Introductionmentioning

confidence: 99%

Sensitivity of three unionid glochidia to elevated levels of copper, zinc and lead

Kováts

Abdel-Hameid

Kovács

et al. 2010

Knowl. Managt. Aquatic Ecosyst.

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Combined effects of metals; an ecotoxicological evaluation

Cited by 169 publications

References 21 publications

The toxicity of metal mixtures to the estuarine mysid Neomysis integer (Crustacea: Mysidacea) under changing salinity

The toxicity of metal mixtures to the estuarine mysid Neomysis integer (Crustacea: Mysidacea) under changing salinity

La pollution due aux rejets urbains par temps de pluie : impacts sur les milieux récepteurs

Sensitivity of three unionid glochidia to elevated levels of copper, zinc and lead

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