Source-pathway-receptor investigation of the fate of trace elements derived from shotgun pellets discharged in terrestrial ecosystems managed for game shooting.
Spent shotgun pellets may contaminate terrestrial ecosystems. We examined the fate of elements originating from shotgun pellets in pasture and woodland ecosystems. Two source-receptor pathways: i) soil-soil pore water-plant and ii) whole earthworm/worm gut contents--washed and unwashed small mammal hair were investigated. Concentrations of Pb and associated contaminants were higher in soils from shot areas than controls. Arsenic and lead concentrations were positively correlated in soils, soil pore water and associated biota. Element concentrations in biota were below statutory levels in all locations. Bioavailability of lead to small mammals, based on concentrations in washed body hair was low. Lead movement from soil water to higher trophic levels was minor compared to lead adsorbed onto body surfaces. Lead was concentrated in earthworm gut and some plants. Results indicate that managed game shooting presents minimal risk in terms of element transfer to soils and their associated biota.
Sneddon
Jennifer
J
School of Natural Sciences and Psychology, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK.
Clemente
Rafael
R
Riby
Philip
P
Lepp
Nicholas W
NW
D000818:Animals; D001151:Arsenic / Q000032:analysis / Q000378:metabolism; D017753:Ecosystem; D004784:Environmental Monitoring; D053834:Explosive Agents / Q000032:analysis* / Q000378:metabolism; D005389:Firearms; D007854:Lead / Q000032:analysis / Q000378:metabolism; D009835:Oligochaeta / Q000737:chemistry* / Q000378:metabolism; D010944:Plants / Q000737:chemistry* / Q000378:metabolism; D012989:Soil Pollutants / Q000032:analysis* / Q000378:metabolism; D014131:Trace Elements / Q000032:analysis* / Q000378:metabolism
D053834:Explosive Agents; D012989:Soil Pollutants; D014131:Trace Elements; D007854:Lead; D001151:Arsenic