Document Detail


Diversity of epiphytic lichens and metal contents of Parmelia caperata thalli as monitors of air pollution in the town of Pistoia (c Italy).
MedLine Citation:
PMID:  12858969     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The results of a biomonitoring survey carried out in the town of Pistoia (central Italy) using the biodiversity of epiphytic lichens and the accumulation of heavy metals in thalli of Parmelia caperata as indicators of air pollution are reported. Compared to previous surveys, the overall situation generally improved, with higher lichen diversity at most stations and lower metal concentrations in P. caperata thalli. However, the general picture according to a calibrated sale of environmental naturality/alteration was substantially negative, with about 87% of the study area classified as 'altered' (including the lichen desert) or 'semi-altered'. To explain this apparent contradiction, it has been suggested that lichen colonization is determined by declining SO2 concentrations, while major injuries to lichen communities are caused by the constantly high levels of NOX. In spite of the low levels of Pb measured in P. caperata thalli, vehicular traffic was excluded as the main source of atmospheric pollution. Domestic heating seems to be the main case of changes in the diversity of epiphytic lichens in the study area.
Authors:
Stefano Loppi; Adelmo Corsini
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Environmental monitoring and assessment     Volume:  86     ISSN:  0167-6369     ISO Abbreviation:  Environ Monit Assess     Publication Date:  2003 Aug 
Date Detail:
Created Date:  2003-07-15     Completed Date:  2003-10-17     Revised Date:  2009-05-11    
Medline Journal Info:
Nlm Unique ID:  8508350     Medline TA:  Environ Monit Assess     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  289-301     Citation Subset:  IM    
Affiliation:
Dipartimento di Scienze Ambientali, Università di Siena, Siena, Italy. loppi@unisi.it
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MeSH Terms
Descriptor/Qualifier:
Air Pollutants / poisoning*
Ascomycota / chemistry*
Biological Markers / analysis
Calibration
Environmental Monitoring / methods*
Italy
Metals, Heavy / analysis*,  poisoning*
Population Dynamics
Reference Values
Sulfur Dioxide / poisoning*
Vehicle Emissions
Chemical
Reg. No./Substance:
0/Air Pollutants; 0/Biological Markers; 0/Metals, Heavy; 0/Vehicle Emissions; 7446-09-5/Sulfur Dioxide

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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