Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2004-3-30
pubmed:abstractText
The results of a survey aimed at providing baseline element composition of lichens from unpolluted or very low polluted areas are reported. Lichen samples collected at high elevation areas in Himalayas (Nepal), Mt. Kenya (Kenya) and the Alps (Italy) were analyzed for their trace element content, mostly by INAA, allowing for a multi-element analysis. The elemental composition of lichen samples was essentially influenced by natural occurrence, mainly airborne soil dust. However, also anthropogenic input determined by long-distance atmospheric transport of pollutants was involved for some highly volatile elements such as Br, Cd and Sb. To avoid the influence of soil contamination and air pollution, and obtain baseline concentrations to be used as reference (the "natural" elemental composition of lichens), the average of the lowest concentrations is suggested.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0045-6535
pubmed:author
pubmed:issnType
Print
pubmed:volume
55
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
933-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Determination of baseline element composition of lichens using samples from high elevations.
pubmed:affiliation
CNR, Unit of Radiochemistry and Spectroscopy, Institute of Metrology IMGC, Viale Taramelli 12, I-27100 Pavia, Italy.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't