biomonitor Articles
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Spatial mapping of the city of Lisbon using biomonitors
Biomonitoring is used to study the performance of a single air sampler as representing air elemental concentrations in Lisbon. A database of chemical elements' concentrations was obtained by analysing exposed lichens and bark, hung on courtyard trees of 22 Lisbon basic schools from January to May 2008 and June to October 2008 (winter and summer campaigns). Electric conductivity was also measured ...
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Study on air pollution in Beijing's major industrial areas using multielements in biomonitors and NAA techniques
Three kinds of plant leaves, Chinese white poplar, arborvitae and pine needles were evaluated as a biomonitor for air pollution studies. Thirty-two trace elements have been determined by using relative and the K0 methods of instrumental Neutron Activation Analysis (NAA). The results indicated that Chinese white poplar leaves are a good biomonitor in particular seasons and the pine needles are ...
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Cysteine synthesis in Scorpiurum circinatum as a suitable biomarker in air pollution monitoring
Heavy metals enter ecosystems by both natural and anthropogenic processes. An excess of metals in the environment damages plant metabolism, leading to oxidative stress in the cell. Most metal ions present in the cell are bound to low molecular mass ligands. The major types of S-containing ligands involved in metal binding are derived from cysteine. The authors show, for the first time in ...
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Using k0-UNAA for the determination of depleted uranium in the moss biomonitoring technique
The use of ammunition containing depleted uranium (DU) in several military actions is of growing health concern to the population related to the risk arising from contamination of the environment with DU penetrators and dust. Environmental monitoring of uranium and its isotopic ratios therefore become important parameters since they allow for source identification. Neutron activation analysis ...
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Using the exhaled breath condensate as a tool for non-invasive evaluation of pollutant exposure
The aim of the present study was to investigate whether Exhaled Breath Condensate (EBC) can be employed for a better risk assessment among human exposure to heavy metals. The objective was to develop a human bioindicator to be applicable for professional exposure that, compared with other common indicators, presents important advantages: it is non-invasive and it is easily and quickly collected. ...
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