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Estimated risk profiles of titanium dioxide and carbon nanotubes engineered nanomaterials (enms) in the Gauteng province environment

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dc.contributor.author Nota, N
dc.contributor.author Musee, N
dc.contributor.author Aldrich, C
dc.date.accessioned 2010-11-04T13:45:32Z
dc.date.available 2010-11-04T13:45:32Z
dc.date.issued 2010-09
dc.identifier.citation Nota, N, Musee, N and Aldrich, C. 2010. Estimation of Titanium dioxide and Silver engineered nanoparticles environmental exposure risks in water: a case of Gauteng Province, South Africa. Nanosciences Young Researcher Symposium, UWC, Belville campus, Cape Town, 17 September 2010, pp 17 en
dc.identifier.uri http://hdl.handle.net/10204/4522
dc.description Nanosciences Young Researcher Symposium, UWC, Belville campus, Cape Town, 17 September 2010 en
dc.description.abstract This paper presents findings on the quantification of potential risks posed by nTiO2 and CNTs to the aquatic and terrestrial ecosystems. The risk quotient (RQ) was calculated as a ratio of modelled predicted environmental concentrations (PEC) to the predicted no-effect concentrations (PNEC). To illustrate the functionality of the environmental risk profiling using modelling tools, the model was applied to the Gauteng Province. Due to large input data uncertainties, three scenarios (minimum, probable and maximum) were considered in our model. In the aquatic environment, the PEC values ranged from 0.036 µg/L to 0.301 µg/L for nTiO2; and 0.005 µg/L to 0.045 µg/L for CNTs under the realistic dilution factor (Dk = 1). On the other hand, the PEC values in terrestrial environment were; 0.457 µg/L to 3.349 µg/L and 0.068 µg/L to 0.499 µg/L, for nTiO2 and CNTs, respectively. en
dc.language.iso en en
dc.relation.ispartofseries Conference Presentation en
dc.subject Titanium dioxide en
dc.subject Nanostructures en
dc.subject Nanosystems en
dc.subject Nanoproducts en
dc.subject Nanomaterials en
dc.title Estimated risk profiles of titanium dioxide and carbon nanotubes engineered nanomaterials (enms) in the Gauteng province environment en
dc.type Conference Presentation en
dc.identifier.apacitation Nota, N., Musee, N., & Aldrich, C. (2010). Estimated risk profiles of titanium dioxide and carbon nanotubes engineered nanomaterials (enms) in the Gauteng province environment. http://hdl.handle.net/10204/4522 en_ZA
dc.identifier.chicagocitation Nota, N, N Musee, and C Aldrich. "Estimated risk profiles of titanium dioxide and carbon nanotubes engineered nanomaterials (enms) in the Gauteng province environment." (2010): http://hdl.handle.net/10204/4522 en_ZA
dc.identifier.vancouvercitation Nota N, Musee N, Aldrich C, Estimated risk profiles of titanium dioxide and carbon nanotubes engineered nanomaterials (enms) in the Gauteng province environment; 2010. http://hdl.handle.net/10204/4522 . en_ZA
dc.identifier.ris TY - Conference Presentation AU - Nota, N AU - Musee, N AU - Aldrich, C AB - This paper presents findings on the quantification of potential risks posed by nTiO2 and CNTs to the aquatic and terrestrial ecosystems. The risk quotient (RQ) was calculated as a ratio of modelled predicted environmental concentrations (PEC) to the predicted no-effect concentrations (PNEC). To illustrate the functionality of the environmental risk profiling using modelling tools, the model was applied to the Gauteng Province. Due to large input data uncertainties, three scenarios (minimum, probable and maximum) were considered in our model. In the aquatic environment, the PEC values ranged from 0.036 µg/L to 0.301 µg/L for nTiO2; and 0.005 µg/L to 0.045 µg/L for CNTs under the realistic dilution factor (Dk = 1). On the other hand, the PEC values in terrestrial environment were; 0.457 µg/L to 3.349 µg/L and 0.068 µg/L to 0.499 µg/L, for nTiO2 and CNTs, respectively. DA - 2010-09 DB - ResearchSpace DP - CSIR KW - Titanium dioxide KW - Nanostructures KW - Nanosystems KW - Nanoproducts KW - Nanomaterials LK - https://researchspace.csir.co.za PY - 2010 T1 - Estimated risk profiles of titanium dioxide and carbon nanotubes engineered nanomaterials (enms) in the Gauteng province environment TI - Estimated risk profiles of titanium dioxide and carbon nanotubes engineered nanomaterials (enms) in the Gauteng province environment UR - http://hdl.handle.net/10204/4522 ER - en_ZA


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