Publications
Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
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lead isotope ratios in tree bark pockets: an indicator of past air pollution in the czech republic. | tree bark pockets were collected at four sites in the czech republic with differing levels of lead (pb) pollution. the samples, spanning 1923-2005, were separated from beech (fagus sylvatica) and spruce (picea abies). elevated pb content (0.1-42.4 microg g(-1)) reflected air pollution in the city of prague. the lowest pb content (0.3-2.6 microg g(-1)) was found at the kosetice emep "background pollution" site. changes in (206)pb/(207)pb and (208)pb/(206)pb isotope ratios were in agreement with o ... | 2008 | 18597820 |