Bone lead levels and lead isotope ratios in red grouse from Scottish and Yorkshire moors
| Autor: | Anton M. Scheuhammer, Della E. Bond, Vernon G. Thomas |
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| Rok vydání: | 2009 |
| Předmět: |
Calluna
Environmental Engineering Grouse engineering.material Lead poisoning Animal science Isotopes Galena medicine Red grouse Animals Environmental Chemistry Leg Bones Galliformes Waste Management and Disposal Isotope analysis biology Ecology Foot Bones Spectrophotometry Atomic Environmental exposure biology.organism_classification medicine.disease Pollution England Lead Scotland Lagopus engineering Environmental science Environmental Pollutants |
| Zdroj: | Science of The Total Environment. 407:3494-3502 |
| ISSN: | 0048-9697 |
| Popis: | Leg and foot bones of adult and juvenile red grouse (Lagopus lagopus scoticus) were collected from hunter-shot birds on two Scottish estates (Glendye and Invermark) and one Yorkshire estate in September, 2003. The lead content of bones was measured by atomic absorption spectrophotometry, and corresponding stable lead isotopes (Pb(204, 206, 207, 208)) by inductively coupled plasma mass spectrometry. At the Glendye (N=111) and Invermark (N=85) estates, relatively few birds (5.4% and 3.5%, respectively) had highly elevated bone lead concentrations (20 microg/g dry weight). In bones of these highly exposed birds, a combination of Pb(206):Pb(207) and Pb(208):Pb(207)ratios was consistent with ingestion of lead gunshot available in Europe. By contrast, Yorkshire grouse experienced a high incidence (65.8%) of bone lead20 microg/g. The Pb(206):Pb(207) and Pb(208):Pb(207)ratios in bones of these highly exposed birds were consistent with a combined exposure to ingested lead gunshot and lead from galena mining in the region. Lead isotope ratios also indicated that lead from UK gasoline combustion and fallout from atmospheric particles was not a likely source of elevated lead in bones of either Scottish or Yorkshire grouse. Suggested management options for the three moors include adopting nontoxic shot for all game shooting on the estates, allowing heather (Calluna vulgaris) vegetation to grow tall in lead shot fall-out zones to reduce physical access to high densities of lead shot already present, and provision of calcareous grit across moors to reduce lead assimilation from all ingested sources of lead. |
| Databáze: | OpenAIRE |
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