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effects of metal-contaminated forest soils from the canadian shield to terrestrial organisms.the effects of elevated metal concentrations in forest soils on terrestrial organisms were investigated by determining the toxicity of six site soils from northern ontario and quebec, canada, using a battery of terrestrial toxicity tests. soils were collected from three sites on each of two transects established downwind of nickel (sudbury, on, canada) and copper (rouyn-noranda, pq, canada) smelting operations. site soils were diluted to determine if toxicity estimates for the most-contaminated ...200616566168
elevated lead exposure in american woodcock (scolopax minor) in eastern canada.we investigated the degree and incidence of elevated lead (pb) accumulation in the american woodcock (scolopax minor) in eastern canada by measuring the concentration of pb in undamaged wing bones of 1,588 birds from ontario, quebec, nova scotia, and new brunswick. overall median bone-pb concentrations were 21 microgram/g (dw) for adults and 11 microgram/g for young of the year. a high proportion of birds had elevated pb concentrations, compared with other wild bird species. fifty-two percent of ...199910047602
lead and stable lead isotope ratios in soil, earthworms, and bones of american woodcock (scolopax minor) from eastern canada.a study to discriminate among different possible sources of elevated pb exposure for american woodcock (scolopax minor) in eastern canada is described. undamaged wing bones excised from young-of-the-year woodcock collected from several locations in southern ontario, southern quebec, new brunswick, and nova scotia, canada, along with soil and earthworm (aporrectodea tuberculata and lumbricus rubellus) samples from the same sites, were analyzed for total pb, and stable pb isotopes. ignoring six so ...200314587896
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