title: Think regionally, act locally: metals in honeybee workers in the Netherlands (surveillance study 2008).
abstract: In June 2008, a surveillance study for metals in honeybees was performed in the Netherlands. Randomly, 150 apiaries were selected. In each apiary, five colonies were sampled. Per apiary, the hive samples were pooled. The apiary sample was analysed for Al, As, Ba, Cd, Co, Cr, Cu, Li, Mn, Mo, Ni, Sb, Se, Sn, Sr, Ti, V and Zn. All metals could be detected in all apiaries. As, Li, Sb, Sn and V were detected in part of the apiaries. The overall picture showed a regional pattern. In apiaries in the east of the Netherlands, Al, Ba, Cr, Mn, Mo, Ni, Se and Ti are found in higher concentrations compared to the west. In-region variation was demonstrated, indicating local effects. The vicinity of the apiaries was mapped afterwards and characterised as land uses of >50 % agricultural area, >50 % wooded area, >50 % urban area and mixed land use within a circle of 28 km(2) around the apiary. The results indicated that in apiaries located in >50 % wooded areas, significantly higher concentrations of Al, Ba, Cd, Cr, Cu, Li, Mn, Mo, Ni, Sb, Sr, Ti and Zn were found compared to agricultural, urban and mixed land use areas. We conclude that (1) the ratio between metal concentrations varies per region, demonstrating spatial differences, and (2) there is in-region local variation per metal. The results indicate the impact of land use on metal concentrations in honeybees. For qualitative bioindication studies, regional, local and land use effects should be taken into account.
authors.affiliation: Wageningen UR, P.O. Box 16, 6700 AA, Wageningen, The Netherlands. sjef.vandersteen@wur.nl.
authors.forename: J J M
authors.initials: JJ
authors.lastname: van der Steen
authors.affiliation: Wageningen UR, P.O. Box 16, 6700 AA, Wageningen, The Netherlands.
authors.forename: B
authors.initials: B
authors.lastname: Cornelissen
authors.affiliation: Wageningen UR, P.O. Box 16, 6700 AA, Wageningen, The Netherlands.
authors.forename: T
authors.initials: T
authors.lastname: Blacquière
authors.affiliation: Provincie Limburg, Milieu, Onderzoek & Advies, Maastricht, The Netherlands.
authors.forename: J E M L
authors.initials: JE
authors.lastname: Pijnenburg
authors.affiliation: Provincie Limburg, Milieu, Onderzoek & Advies, Maastricht, The Netherlands.
authors.forename: M
authors.initials: M
authors.lastname: Severijnen
mesh_terms: D000818:Animals; D001151:Arsenic / Q000032:analysis; D001516:Bees; D004784:Environmental Monitoring; D004785:Environmental Pollutants / Q000032:analysis*; D008670:Metals / Q000032:analysis*; D009426:Netherlands
chemical_list: D004785:Environmental Pollutants; D008670:Metals; D001151:Arsenic
keywords: Apis mellifera; Bioindication; Heavy metals; Honeybee; Land use; Region; Surveillance study