9 research outputs found
Basisdocument Nitraat
Dit rapport is de engelse versie van rapport 75843007. Bij dit rapport hoort een bijlage, getiteld: Appendix to report no. 758473012<br>Dit rapport bevat een systematisch overzicht en een kritische evaluatie van de belangrijkste gegevens over de prioritaire stof nitraat ten behoeve van het milieubeleid.DGM/SR /Cornet J
Selection of tawny owl (Strix aluco) flight feather shaft for biomonitoring As, Cd and Pb pollution
Assessing heavy metal pollution using Great Tits (Parus major): feathers and excrements from nestlings and adults
Integrated Criteria Document Nitrate
Separaat verschenen bijlage: Appendix Integrated Criteria Document Nitrate, Effects. Met rapportnummer 758473007. Onder nummer 758473012 is de engelse versie van dit rapport verschenen.<br>Dit rapport bevat een systematisch overzicht en een kritische evaluatie van de belangrijkste gegevens over de prioritaire stof nitraat ten behoeve van het milieubeleid.DGMH/SRCornet JP
Toxic Element Concentrations in the Razorbill Alca torda (Charadriiformes, Alcidae) in Portugal
The present study provides the first data on inorganic element levels (As, Cd, Co, Cr, Cu, Hg, Mn, Pb, Se, and Zn) in juvenile, immature, and adult razorbills (Alca torda) collected along the central coast of Portugal. Element concentrations were assessed by ICP-MS in kidney, liver, muscle, and feathers of 28 razorbills, including 4 juveniles, 17 subadults, and 7 adults. The effect of age and tissue on element accumulation was also assessed. The detected levels in razorbills may indicate a possible contamination risk by Hg and Cr. With respect to bird tissues, higher accumulation of Se and Cd was detected in kidney, Zn and Pb in feathers, and As and Mn in liver. Age was found to affect the accumulation of Cd, Cr, Cu, Hg, and Mn, juveniles presenting higher levels of Cu and Mn than older individuals. In razorbill kidney, Zn-Hg constituted the most significant relationship among metal concentrations. Liver presented the highest number of significant relationships (mostly involving Zn and Co). With regard to feathers, the most significant relationships involved Se, Zn, Cr and Cu concentrations. Positive linear relationships were detected among kidney, liver, and muscle, with emphasis on relationships involving Se and Hg, which may be indicative of similar accumulation/regulation mechanisms in those organs. Element concentrations are discussed in view of possible detoxification mechanisms in seabirds.SEID/CRUP - project HP 2005-0011 (ACIN)FCT/MCTES - SFRH/BPD/27014/200