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Friday, October 16, 2020 | History

1 edition of Intraorgan distribution of chemical contaminants in tissues of harbor porpoises (Phocoena phocoena) from the northwest Atlantic found in the catalog.

Intraorgan distribution of chemical contaminants in tissues of harbor porpoises (Phocoena phocoena) from the northwest Atlantic

Intraorgan distribution of chemical contaminants in tissues of harbor porpoises (Phocoena phocoena) from the northwest Atlantic

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Published by U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Northwest Fisheries Science Center, Available from the National Technical Information Service in Seattle, Wash, Springfield, Va .
Written in English

    Subjects:
  • Harbor porpoise -- Effect of pollution on.,
  • Marine pollution.

  • Edition Notes

    StatementJohn E. Stein ... [et al.].
    SeriesTechnical memorandum NMFS-NWFSC -- 3., NOAA technical memorandum NMFS-NWFSC -- 3.
    ContributionsStein, John E., Northwest Fisheries Science Center (U.S.)
    The Physical Object
    Paginationviii, 76 p. :
    Number of Pages76
    ID Numbers
    Open LibraryOL16046166M

    The distribution of these contaminants is geographically different. In a previous study we obtained various body tissues and fluids from women undergoing caesarean section in Tanzania and Germany. Highest levels of insecticides like DDT and dieldrin were found in women from Tanzania, whereas the industrial by-products like PCB had higher levels. This chapter and the following one should be considered as a unit. Although the committee has not attempted a comprehensive quantitative assessment of the risks of chemical contaminants in seafood, this chapter performs the functions of the "hazard identification" portion of a chemical risk assessment–giving a broad overview of many different potential seafood contamination problems, as .

    Viral and chemical contaminants can also have considerable consequences for culture health, and ensuring that cell lines are not cross-contaminated is critical to reproducibility of results. How pervasive is cell contamination? Based on studies by the FDA, ATCC, and others, it is estimated that 5 – 30% of all cell cultures today are. 1 explains the rationale for analyzing contaminants in tissues and gives an overview of the approach. Part 2 describes the tissue-contaminant strategies of other agencies and compares them to the strategy used in NAWQA. Part 3 details the approach for the use of tissue analysis as an aid to interpreting quality of water in NAWQA study units.

    Concentrations of perfluorochemicals (PFCs) including perfluoroalkylsulfonates (PFSAs) and perfluoroalkylcarboxylates (PFCAs) were determined in liver and serum of Baikal seals (Pusa sibirica) collected from Lake Baikal, Russia in Among the 10 PFC compounds measured, perfluorononanoic acid (PFNA, –72 ng/g wet wt) concentrations were the highest in liver, followed by. The goals of the present study were firstly to develop PBPK models for several environmental relevant PCB congeners in harbor porpoises (Phocoena phocoena), a species that is sensitive to pollution because of its limited metabolic capacity for pollutant transformation. These models were tested using tissue data of porpoises from the Black Sea.


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Intraorgan distribution of chemical contaminants in tissues of harbor porpoises (Phocoena phocoena) from the northwest Atlantic Download PDF EPUB FB2

Specifically, the present study determined if there is heterogeneity in the distribution of persistent chemical contaminants, such as chlorinated hydrocarbons (e.g., polychlorinated biphenyls) and certain toxic elements (e.g., mercury), in tissues of harbor porpoise (Phocoena phocoena).

Any significant heterogeneity in the distribution of chemicals is of particular concern in marine mammals where the tissue sample for chemical analysis. Intraorgan distribution of chemical contaminants in tissues of harbor porpoises (Phocoena phocoena) from the northwest Atlantic Author: John E Stein ; Northwest Fisheries Science Center.

Intraorgan distribution of chemical contaminants in tissues of harbor porpoises 'phocoena phocoena' from the northwest Atlantic. Technical memo The possible heterogeneous partitioning of chemical contaminants within tissues of marine mammals is a factor affecting whether a tissue sample is representative of the entire organ.

The potential. Chemical contaminants in harbor porpoise (Phocoena phocoena) from the north Atlantic coast: tissue concentrations and intra- and inter-organ distribution. Tilbury KL(1), Stein JE, Meador JP, Krone CA, Chan SL.

Author information: (1)Environmental Conservation Division, National Oceanic and Atmospheric Administration, Seattle, WAby: NOAA-NWFSC Tech Memo Intraorgan Distribution of Chemical Contaminants In Harbor Porpoises Table 1.

Chlorinated hydrocarbon (CH) analytes measured in samples from harbor porpoise. Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions. Information on organic contaminants in harbour porpoises from the German North Sea and Baltic Sea is limited.

An interdisciplinary study was set up by the German Federal Ministry of Education, Science, Research and Technology in involving investigations of the pathology, biology, toxicology and chemical residues in porpoises.

A wide range of organochlorine residues were determined in the blubber of harbour porpoises from the Black Sea.

Concentrations of DDTs (– μg g−1wet weight) were the highest followed by PCBs (–39 μg g−1), HCHs (–17 μg g−1), CHLs ( –.

These data sets were compiled from our own analyses performed with GC-MS on tissue samples of harbor porpoises. The intake of PCB was from milk from birth to 4 months, and after weaning fish. reported PFSA levels in tissues of these top-of-the-food-chain animals in recent.

harbor porpoises Identification of effects of exposure to chemical contaminants on free-ranging. The ratios of bioaccumulative contaminants found within Harbour Porpoise tissues may prove useful in assessing the relative abundance of specific compounds in localized environments.

Harbour Porpoise distribution in combination with their relatively short life span makes them ideal candidates as sentinel species for the coastal environment.

Congener-specific polychlorinated biphenyl (PCB) concentrations were determined in the blubber, kidney, and liver tissues of 22 harbor porpoises (Phocoena phocoena) stranded on the Dutch coast.

For comparison, the PCB concentrations in blubber and liver samples of four porpoises from the vicinity of Greenland were investigated.

In ten blubber samples, the non-ortho PCB concentrations were. Tables and (Chapter 3) identify the species of ish for which environmental chemical contaminants and pesticides are a potential hazard.

Extensive studies of harbor porpoises in the United Kingdom have compared diseased animals with trauma-killed animals and found PCB levels to be higher in diseased animals; statistical approaches estimated that each increase in blubber PCBs of 1 mg/kg created an additional risk of infectious disease mortality of 2% (Hall et al.,Jepson et.

Poly- and perfluoroalkyl substances (PFASs) represent one of the more contemporary chemicals of environmental concern for marine mammals. The most recent information on the spatial distribution, temporal trends, and effects of PFAS contamination in cetaceans, pinnipeds, polar bears, and otters is discussed in this chapter.

Σ 21 PCB concentrations in blubber tissue ranged between μg/g lw and μg/g lw for harbor seals and harbor porpoises, respectively (Weijs et al., ). The large range of values.

First, the contamination status was evaluated through the determination of two components of chemical contaminants (metals and persistent organic pollutants) in tissues of harbour porpoises.

The ratios of bioaccumulative contaminants found within harbour porpoise tissues may prove useful in assessing the relative abundance of specific compounds in localized environments. Harbour porpoise distribution in combination with their relatively short life span makes them ideal candidates as sentinel species for the coastal environment.

Awareness of the threat of environmental contaminants to marine mammals is widespread. High concentration of certain compounds in the tissues of these animals has been associated with organ anomalies, impaired reproduction and immune function, and as a consequence of the latter, with the occurrence of large die-offs among seal and cetacean species.

Tissue distribution of organochlorine residues – PCBs and pesticides – in Antarctic penguins - Volume 8 Issue 3 - Odete N.K. Inomata, R.C. Montone, W.H. Lara, R.R. Research publications on chemical contaminants from peer-reviewed journals. Some publications may be early view or ahead of print.

Citations and abstracts are available to all users while full-text availability depends on institutional access levels.These chemical contaminants persist for long periods in sediments where bottom-dwelling animals accumulate and pass them up the food chain to fish.

Levels of these contaminants may increase as they move up the food chain, so top predators in a food chain (such as largemouth bass or walleye) may have levels several orders of magnitude higher.Purchase Contamination in Tissue Culture - 1st Edition.

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