Ecotoxicity of Selected Nano-Materials to Aquatic Organisms
Identifieur interne : 006972 ( Main/Repository ); précédent : 006971; suivant : 006973Ecotoxicity of Selected Nano-Materials to Aquatic Organisms
Auteurs : RBID : Pascal:08-0521328Descripteurs français
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Abstract
Present knowledge concerning the ecotoxic effects of nano-materials is very limited and merits to be documented more fully. For this purpose, we appraised the toxicity of nine metallic nano-powders (copper zinc iron oxide, nickel zinc iron oxide, yttrium iron oxide, titanium dioxide, strontium ferrite, indium tin oxide, samarium oxide, erbium oxide, and holmium oxide) and of two organic nano-powders (fullerene-C60 and single-walled carbon nanotube or SWCNT). After a simple process where nano-powders (NPs) were prepared in aqueous solution and filtered, they were then bioassayed across several taxonomic groups including decomposers (bacteria), primary producers (micro-algae), as well as primary and secondary consumers (micro-invertebrates and fish). Toxicity data generated on the 11 NPs reflected a wide spectrum of sensitivity that was biological level-, test-, and endpoint-specific. With all acute and chronic tests confounded for these 11 NPs, toxicity responses spanned over three orders of magnitude: >463 mg/L (24 h LC50 of the invertebrate Thamnoplatyurus platyurus for fullerene-C60) ========divide; 0.3 mg/L (96 h EC50 of the invertebrate Hydra attenuata for indium tin oxide), that is a ratio of 1543. On the basis of the MARA (Microbial Array for Risk Assessment) assay toxic fingerprint concept, it is intimated that NPs may have different modes of toxic action. When mixed in a 1:1 ratio with a certified reference material (CRM) sediment, two solid phase assays and an elutriate assay, respectively, showed that five NPs (copper zinc iron oxide, samarium oxide, erbium oxide, holmium oxide, and SWCNT) were able to increase both CRM sediment toxicity and its elutriate toxicity. This initial investigation suggests that chemicals emerging from nanotechnology may pose a risk to aquatic life in water column and sediment compartments and that further studies on their adverse effects are to be encouraged.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Ecotoxicity of Selected Nano-Materials to Aquatic Organisms</title><author><name sortKey="Blaise, C" uniqKey="Blaise C">C. Blaise</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Environment Canada, 105 McGill Street</s1><s2>Montréal, Québec, H2Y 2E7</s2><s3>CAN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Canada</country><wicri:noRegion>Montréal, Québec, H2Y 2E7</wicri:noRegion></affiliation></author><author><name sortKey="Gagne, F" uniqKey="Gagne F">F. Gagne</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Environment Canada, 105 McGill Street</s1><s2>Montréal, Québec, H2Y 2E7</s2><s3>CAN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Canada</country><wicri:noRegion>Montréal, Québec, H2Y 2E7</wicri:noRegion></affiliation></author><author><name sortKey="Ferard, J F" uniqKey="Ferard J">J. F. Ferard</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire des Interactions Ecotoxicologie, Biodiversité, Ecosystèmes, (LIEBE), Université Paul Verlaine -METZ (UPVM), UMR CNRS 7146, Campus Bridoux, Rue du Général Delestraint</s1><s2>57070 Metz</s2><s3>FRA</s3><sZ>3 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Lorraine</region><settlement type="city">Metz</settlement></placeName></affiliation></author><author><name sortKey="Eullaffroy, P" uniqKey="Eullaffroy P">P. Eullaffroy</name><affiliation wicri:level="4"><inist:fA14 i1="03"><s1>Laboratoire Plantes, Pesticides et Développement Durable, EA 2069, (URVVC), BP 1039, Université de Reims Champagne-Ardenne</s1><s2>51687 Reims</s2><s3>FRA</s3><sZ>4 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Champagne-Ardenne</region><settlement type="city">Reims</settlement></placeName><orgName type="university">Université de Reims Champagne-Ardenne</orgName></affiliation></author></titleStmt><publicationStmt><idno type="inist">08-0521328</idno><date when="2008">2008</date><idno type="stanalyst">PASCAL 08-0521328 INIST</idno><idno type="RBID">Pascal:08-0521328</idno><idno type="wicri:Area/Main/Corpus">006018</idno><idno type="wicri:Area/Main/Repository">006972</idno></publicationStmt><seriesStmt><idno type="ISSN">1520-4081</idno><title level="j" type="abbreviated">Environ. toxicol.</title><title level="j" type="main">Environmental toxicology</title></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aquatic environment</term><term>Autotrophy</term><term>Behavior</term><term>Decomposer</term><term>Ecotoxicology</term><term>Environment</term><term>Organism</term><term>Primary productivity</term><term>Sediments</term><term>Toxicity</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Ecotoxicologie</term><term>Milieu aquatique</term><term>Organisme</term><term>Toxicité</term><term>Décomposeur</term><term>Autotrophie</term><term>Productivité primaire</term><term>Comportement</term><term>Sédiment</term><term>Environnement</term><term>Nanomatériau</term></keywords><keywords scheme="Wicri" type="concept" xml:lang="fr"><term>Milieu aquatique</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Present knowledge concerning the ecotoxic effects of nano-materials is very limited and merits to be documented more fully. For this purpose, we appraised the toxicity of nine metallic nano-powders (copper zinc iron oxide, nickel zinc iron oxide, yttrium iron oxide, titanium dioxide, strontium ferrite, indium tin oxide, samarium oxide, erbium oxide, and holmium oxide) and of two organic nano-powders (fullerene-C60 and single-walled carbon nanotube or SWCNT). After a simple process where nano-powders (NPs) were prepared in aqueous solution and filtered, they were then bioassayed across several taxonomic groups including decomposers (bacteria), primary producers (micro-algae), as well as primary and secondary consumers (micro-invertebrates and fish). Toxicity data generated on the 11 NPs reflected a wide spectrum of sensitivity that was biological level-, test-, and endpoint-specific. With all acute and chronic tests confounded for these 11 NPs, toxicity responses spanned over three orders of magnitude: >463 mg/L (24 h LC50 of the invertebrate Thamnoplatyurus platyurus for fullerene-C60) ========divide; 0.3 mg/L (96 h EC50 of the invertebrate Hydra attenuata for indium tin oxide), that is a ratio of 1543. On the basis of the MARA (Microbial Array for Risk Assessment) assay toxic fingerprint concept, it is intimated that NPs may have different modes of toxic action. When mixed in a 1:1 ratio with a certified reference material (CRM) sediment, two solid phase assays and an elutriate assay, respectively, showed that five NPs (copper zinc iron oxide, samarium oxide, erbium oxide, holmium oxide, and SWCNT) were able to increase both CRM sediment toxicity and its elutriate toxicity. This initial investigation suggests that chemicals emerging from nanotechnology may pose a risk to aquatic life in water column and sediment compartments and that further studies on their adverse effects are to be encouraged.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>1520-4081</s0></fA01><fA03 i2="1"><s0>Environ. toxicol.</s0></fA03><fA05><s2>23</s2></fA05><fA06><s2>5</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Ecotoxicity of Selected Nano-Materials to Aquatic Organisms</s1></fA08><fA09 i1="01" i2="1" l="ENG"><s1>13th International Symposium on Toxicity Assessment</s1></fA09><fA11 i1="01" i2="1"><s1>BLAISE (C.)</s1></fA11><fA11 i1="02" i2="1"><s1>GAGNE (F.)</s1></fA11><fA11 i1="03" i2="1"><s1>FERARD (J. F.)</s1></fA11><fA11 i1="04" i2="1"><s1>EULLAFFROY (P.)</s1></fA11><fA12 i1="01" i2="1"><s1>KUSUI (Takashi)</s1><s9>ed.</s9></fA12><fA14 i1="01"><s1>Environment Canada, 105 McGill Street</s1><s2>Montréal, Québec, H2Y 2E7</s2><s3>CAN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></fA14><fA14 i1="02"><s1>Laboratoire des Interactions Ecotoxicologie, Biodiversité, Ecosystèmes, (LIEBE), Université Paul Verlaine -METZ (UPVM), UMR CNRS 7146, Campus Bridoux, Rue du Général Delestraint</s1><s2>57070 Metz</s2><s3>FRA</s3><sZ>3 aut.</sZ></fA14><fA14 i1="03"><s1>Laboratoire Plantes, Pesticides et Développement Durable, EA 2069, (URVVC), BP 1039, Université de Reims Champagne-Ardenne</s1><s2>51687 Reims</s2><s3>FRA</s3><sZ>4 aut.</sZ></fA14><fA15 i1="01"><s1>Environmental Technology, Toyama Prefectural University</s1><s2>Toyama</s2><s3>JPN</s3><sZ>1 aut.</sZ></fA15><fA20><s1>591-598</s1></fA20><fA21><s1>2008</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>20960</s2><s5>354000185813980050</s5></fA43><fA44><s0>0000</s0><s1>© 2008 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>3/4 p.</s0></fA45><fA47 i1="01" i2="1"><s0>08-0521328</s0></fA47><fA60><s1>P</s1><s2>C</s2></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Environmental toxicology</s0></fA64><fA66 i1="01"><s0>USA</s0></fA66><fC01 i1="01" l="ENG"><s0>Present knowledge concerning the ecotoxic effects of nano-materials is very limited and merits to be documented more fully. For this purpose, we appraised the toxicity of nine metallic nano-powders (copper zinc iron oxide, nickel zinc iron oxide, yttrium iron oxide, titanium dioxide, strontium ferrite, indium tin oxide, samarium oxide, erbium oxide, and holmium oxide) and of two organic nano-powders (fullerene-C60 and single-walled carbon nanotube or SWCNT). After a simple process where nano-powders (NPs) were prepared in aqueous solution and filtered, they were then bioassayed across several taxonomic groups including decomposers (bacteria), primary producers (micro-algae), as well as primary and secondary consumers (micro-invertebrates and fish). Toxicity data generated on the 11 NPs reflected a wide spectrum of sensitivity that was biological level-, test-, and endpoint-specific. With all acute and chronic tests confounded for these 11 NPs, toxicity responses spanned over three orders of magnitude: >463 mg/L (24 h LC50 of the invertebrate Thamnoplatyurus platyurus for fullerene-C60) ========divide; 0.3 mg/L (96 h EC50 of the invertebrate Hydra attenuata for indium tin oxide), that is a ratio of 1543. On the basis of the MARA (Microbial Array for Risk Assessment) assay toxic fingerprint concept, it is intimated that NPs may have different modes of toxic action. When mixed in a 1:1 ratio with a certified reference material (CRM) sediment, two solid phase assays and an elutriate assay, respectively, showed that five NPs (copper zinc iron oxide, samarium oxide, erbium oxide, holmium oxide, and SWCNT) were able to increase both CRM sediment toxicity and its elutriate toxicity. 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