Comparison of anthropogenic and natural background of trace elements in bioindicator moss Pylaisia polyantha

Natalia Rogova, Nadezhda Ryzhakova, Alex Borisenko, Natalia Sergeeva

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

There is the problem in determining the background of urban area in estimation of the contribution of large enterprises in the air pollution. In this study, a statistical approach was used to evaluate the anthropogenic geochemical background using the method of moss-biomonitors. The concentrations of elements from natural origins effect large remote sources and many surface sources (e.g., dust, traffic, mini-boilers), can be described as normal or lognormal distribution. In this case, the mean ± 2 standard deviation can be used for anthropogenic geochemical background for the calculation of this area. This method was applied in an urban area (Tomsk, Russia) for the epiphytic moss Pylaisia polyanth, which has a high accumulating capacity. The moss was collected in 2011 and was taken from the bark of poplars at a height of 1.5 … 2 meters above the ground. The concentrations of 21 chemical elements were determined by neutron activation analysis at the research reactor of the Tomsk Polytechnic University (Russia.) The hypothesis of normal distribution was tested with the χ2 criterion. All the chemical elements except cobalt ranges of concentrations were determined using normal or lognormal distribution. Calcium concentrations had a bimodal distribution. Calculated anthropogenic background concentrations were compared to natural concentrations obtained from the moss collected in remote areas from settlements (more than 100 km away.) Natural concentrations of chemical elements were either below or within the range of the mean value ± 2σ. The effect of region’s power station leads to the exceedance of up to 8 times more in concentrations of Ce, Eu, Fe, Yb and up to 10 times of Br, Cs over anthropogenic the background.

Original languageEnglish
Title of host publication16th International Multidisciplinary Scientific GeoConference, SGEM 2016
Subtitle of host publicationNano, Bio and Green - Technologies for a Sustainable Future, Conference Proceedings
PublisherInternational Multidisciplinary Scientific Geoconference
Pages163-170
Number of pages8
ISBN (Electronic)9786197105568, 9786197105599, 9786197105629, 9786197105643, 9786197105667, 9786197105698
ISBN (Print)9786197105551
DOIs
Publication statusPublished - 2016
Event16th International Multidisciplinary Scientific GeoConference: SGEM 2016 - Albena, Bulgaria
Duration: 30 Jun 20166 Jul 2016

Publication series

NameInternational Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
Volume2
ISSN (Print)1314-2704

Conference

Conference16th International Multidisciplinary Scientific GeoConference: SGEM 2016
CountryBulgaria
CityAlbena
Period30.6.166.7.16

Keywords

  • Background level
  • Heavy metals
  • Moss-bioindicators
  • NAA
  • Pollution

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Geology

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