Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
| one publication added to basket [128768] |
Conducting ecological risk assessments of inorganic metals and metalloids: Current status
Chapman, P.M.; Wang, F.Y.; Janssen, C.R.; Goulet, RR.; Kamunde, C.N. (2003). Conducting ecological risk assessments of inorganic metals and metalloids: Current status. Human and Ecological Risk Assessment 9(4): 641-697
In: Human and Ecological Risk Assessment. Taylor & Francis: Amherst, MA. ISSN 1080-7039; e-ISSN 1549-7860, meer
|  |
| Trefwoorden |
Bioavailability
Chemical elements > Metals
Ecological risk assessment
Metalloids
Speciation
|
| Auteurs | | Top |
- Chapman, P.M.
- Wang, F.Y.
- Janssen, C.R., meer
|
- Goulet, RR.
- Kamunde, C.N.
|
|
| Abstract |
Ecological risk assessment (ERA) of inorganic metals and metalloids (metals) must be specific to these substances and cannot be generic because most metals are naturally occurring, some are essential, speciation affects bioavailability, and bioavailability is determined by both external environmental conditions and organism physiological/biological characteristics. Key information required for ERA of metals includes: emissions, pathways, and movements in the environment (Do metals accumulate in biota above background concentrations?); the relationship between internal dose and/or external concentration (Are these metals bioreactive?); and the incidence and severity of any effects (Are bioreactive metals likely to result in adverseor, in the case of essential metals, beneficial effects?) — ground-truthed in contaminated areas by field observations. Specific requirements for metals ERA are delineated for each ERA component (Hazard Identification, Exposure Analysis, Effects Analysis, Risk Characterization), updating Chapman and Wang (2000). In addition, key specific information required for ERA is delineated by major information category (conceptual diagrams, bioavailability, predicted environmental concentration [PEC], predicted no effect concentration [PNEC], tolerance, application [uncertainty] factors, risk characterization) relative to three different tiered, literative levels of ERA: Problem Formulation, Screening Level ERA (SLERA), and Detailed Level ERA (DLERA). Although data gaps remain, a great deal of progress has been made in the last three years, forming the basis for substantial improvements to ERA for metals. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
