Regulatory and health agencies within the US, Canada, and countries within Europe are continuously identifying compounds of suspected carcinogenic or toxicological risk. These compounds are often described as emerging contaminants. Once the health risks are identified, accurate analytical methods need to be developed and verified for quantifying these emerging contaminants in relevant samples.
NIST has a wide range of natural-matrix reference materials and a collection of tissues from many different specimens in the Marine Environmental Specimen Bank. The SRMs are of known homogeneity so can serve as target materials for method development for a wide range of emerging contaminants. The tissues within the Specimen Bank provide an opportunity to do spatial and temporal trend studies for the emerging contaminants once analytical methods are developed.
Additional Technical Details:
As groups of emerging contaminants are identified and sources of neat compounds become available for those analytes, critically evaluated methods are developed and applied to SRMs of relevance. The data from the SRM studies are critically evaluated by statistical analysis and values are added to the Certificates of Analysis as appropriate and published in peer-reviewed journals. These SRMs are then useful to the analytical community for method development and comparability. Once the methods are established, specimens from the Marine Environmental Specimen Bank are identified for studies of spatial and temporal trends of the emerging contaminants.
- Methods are currently being developed for phosphorous flame retardants (PFRs).
- Methods for perfluorinated alkyl acids (PFAAs)have been developed and values added to the Certificates of Analysis for a wide range of SRM matrices.
- Methods for brominated flame retardants (BFRs), particularly polybrominated diphenyl ethers, have been developed and values added to the Certificates of Analysis for a wide range of SRM matrices.
- Methods have been developed for musk compounds and values added to the Certificates of Analysis for a wide range of SRM matrices.
January 1, 1980
Lead Organizational Unit:
Source of Extramural Funding:
Related Programs and Projects:
- SRM 1588b Organics in Cod Liver Oil - polychlorinated biphenyls (PCBs), chlorinated pesticides, polybrominated diphenyl ethers (PBDEs), and fatty acids
- SRM 1945 Organics in Whale Blubber - PCBs, chlorinated pesticides, PBDEs
- SRM 1946 Lake Superior Fish Tissue - PCBs, chlorinated pesticides, PBDEs, fatty acids (including omega-3 fatty acids), extractable fat, methylmercury, total mercury, and selected trace elements
- SRM 1947 Lake Michigan Fish Tissue - selected trace elements, methylmercury, total mercury, PCBs, chlorinated pesticides, PBDEs, proximates, caloric content and fatty acids
- SRM 1953 Contaminants in Non-Fortified Human Milk - organic and inorganic constituents
- SRM 1954 Contaminants in Fortified Human Milk - organic and inorganic constituents
- SRM 1957 Contaminants in Non-Fortified Human Serum - organic and inorganic constituents
- SRM 1958 Contaminants in Fortified Human Serum - organic and inorganic constituents
- SRM 1974b Organics in Mussel Tissue (Mytilus edulis) - polycyclic aromatic hydrocarbons (PAHs), PCBs, chlorinated pesticides, PBDEs, methylmercury, and trace elements
- SRM 2585 Organic Contaminants in House Dust - PAHs, PCBs, chlorinated pesticides, PBDEs
- SRM 2977 Mussel Tissue (Organic Contaminants and Trace Elements) - PAHs, PCBs, chlorinated pesticides, PBDEs, methylmercury, trace elements