Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A Nondestructive Method to Identify POP Contamination Sources in Omnivorous Seabirds
Abstract Persistent organic pollutants (POPs) are present in almost all environments due to their high bioaccumulation potential. Especially species that adapted to human activities, like gulls, might be exposed to harmful concentrations of these chemicals. The nature and degree of the exposure to POPs greatly vary between individual gulls, due to their diverse foraging behavior and specialization in certain foraging tactics. Therefore, in order clarify the effect of POP-contaminated areas on gull populations, it is important to identify the sources of POP contamination in individual gulls. Conventional sampling methods applied when studying POP contamination are destructive and ethically undesired. The aim of this literature review was to evaluate the potential of using feathers as a nondestructive method to determine sources of POP contamination in individual gulls. The reviewed data showed that high concentrations of PCBs and PBDEs in feathers together with a large proportion of less bioaccumulative congeners may indicate that the contamination originates from landfills. Low PCB and PBDE concentrations in feathers and a large proportion of more bioaccumulative congeners could indicate that the contamination originates from marine prey. We propose a nondestructive approach to identify the source of contamination in individual gulls based on individual contamination levels and PCB and PBDE congener profiles in feathers. Despite some uncertainties that might be reduced by future research, we conclude that especially when integrated with other methods like GPS tracking and the analysis of stable isotopic signatures, identifying the source of POP contamination based on congener profiles in feathers could become a powerful nondestructive method.
A Nondestructive Method to Identify POP Contamination Sources in Omnivorous Seabirds
Abstract Persistent organic pollutants (POPs) are present in almost all environments due to their high bioaccumulation potential. Especially species that adapted to human activities, like gulls, might be exposed to harmful concentrations of these chemicals. The nature and degree of the exposure to POPs greatly vary between individual gulls, due to their diverse foraging behavior and specialization in certain foraging tactics. Therefore, in order clarify the effect of POP-contaminated areas on gull populations, it is important to identify the sources of POP contamination in individual gulls. Conventional sampling methods applied when studying POP contamination are destructive and ethically undesired. The aim of this literature review was to evaluate the potential of using feathers as a nondestructive method to determine sources of POP contamination in individual gulls. The reviewed data showed that high concentrations of PCBs and PBDEs in feathers together with a large proportion of less bioaccumulative congeners may indicate that the contamination originates from landfills. Low PCB and PBDE concentrations in feathers and a large proportion of more bioaccumulative congeners could indicate that the contamination originates from marine prey. We propose a nondestructive approach to identify the source of contamination in individual gulls based on individual contamination levels and PCB and PBDE congener profiles in feathers. Despite some uncertainties that might be reduced by future research, we conclude that especially when integrated with other methods like GPS tracking and the analysis of stable isotopic signatures, identifying the source of POP contamination based on congener profiles in feathers could become a powerful nondestructive method.
A Nondestructive Method to Identify POP Contamination Sources in Omnivorous Seabirds
Michielsen, Rosanne J. (Autor:in) / Shamoun-Baranes, Judy (Autor:in) / Parsons, John R. (Autor:in) / Kraak, Michiel H.S. (Autor:in)
01.01.2018
25 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Behavior , Bioaccumulation , Biomagnification , Biomonitoring , Birds , Chemical analysis , Congener , Congener ratio , Contamination source , Deposition pathway , Exposure , Feathers , Foraging area , Foraging strategy , GPS tracking , Gulls , Landfill , Leachate , Nondestructive method , Organochlorine pesticide , PBDE , PCB , Persistent organic pollutants , POP signature , Stable isotopes Environment , Ecotoxicology , Environmental Management , Water Quality/Water Pollution , Environmental Chemistry
Lead contamination of seabirds harvested with lead shot- implications to human diet in Greenland
| Online Contents | 2001
| British Library Conference Proceedings | 2009