scholarly journals ELEMENTAL CONCENTRATIONS AND SOIL-TO-MOSS TRANSFER FACTORS OF RADIONUCLIDES IN THE ENVIRONMENT OF NORTH KOSOVO AND METOHIJA

2020 ◽  
Vol 10 (2) ◽  
Author(s):  
Ljiljana Gulan ◽  
Tatjana Jakšić ◽  
Biljana Milenković ◽  
Jelena Stajić
Keyword(s):  
Wet Deposition ◽  
Natural Radionuclides ◽  
Transfer Factors ◽  
Soil Particles ◽  
Dominant Source ◽  
Dry And Wet Deposition ◽  
Hypnum Cupressiforme ◽  
Elemental Concentrations

This paper deals with investigations of elemental concentrations and soil-to-moss transfer factors of radionuclides in area of municipalities Kosovska Mitrovica and Zubin Potok. Twelve samples of soil and moss Hypnum cupressiforme Hedw. were collected during May 2018. Transfer factors of radionuclides: 226Ra, 232Th, 40Kand 137Cs were calculated with regard to elemental concentrations of radionuclides in soil and moss samples. Analysis was done in order to indicate the different ways of adopting radionuclides by mosses. According to calculated transfer factors and analysis, authors concluded that the soil is dominant source of natural radionuclides and their concentration in moss occurred due to resuspension of soil particles, while artificial 137Cs is present in soil and moss samples as a consequence of atmospheric dry and wet deposition.

scholarly journals Elemental concentrations and soil-to-moss transfer factors of radionuclides in the environment of North Kosovo and Metohija

2020 ◽  
Vol 10 (2) ◽  
pp. 59-64
Author(s):  
Ljiljana Gulan ◽  
Tatjana Jakšić ◽  
Biljana Milenković ◽  
Jelena Stajić
Keyword(s):  
Wet Deposition ◽  
Natural Radionuclides ◽  
Transfer Factors ◽  
Soil Particles ◽  
Dominant Source ◽  
Dry And Wet Deposition ◽  
Hypnum Cupressiforme ◽  
Elemental Concentrations

This paper deals with investigations of elemental concentrations and soil-to-moss transfer factors of radionuclides in area of municipalities Kosovska Mitrovica and Zubin Potok. Twelve samples of soil and moss Hypnum cupressiforme Hedw. were collected during May 2018. Transfer factors of radionuclides: 226Ra, 232Th, 40K and 137Cs were calculated with regard to elemental concentrations of radionuclides in soil and moss samples. Analysis was done in order to indicate the different ways of adopting radionuclides by mosses. According to calculated transfer factors and analysis, authors concluded that the soil is dominant source of natural radionuclides and their concentration in moss occurred due to resuspension of soil particles, while artificial 137Cs is present in soil and moss samples as a consequence of atmospheric dry and wet deposition.

scholarly journals Natural radionuclides and 137Cs in moss and lichen in eastern Serbia

2012 ◽  
Vol 27 (1) ◽  
pp. 44-51 ◽  
Author(s):  
Ana Cuculovic ◽  
Dragana Popovic ◽  
Rodoljub Cuculovic ◽  
Jelena Ajtic
Keyword(s):  
Spatial Distribution ◽  
Natural Radionuclides ◽  
Frequency Pattern ◽  
Transfer Factors ◽  
Moss Species ◽  
Hypnum Cupressiforme ◽  
The Mean ◽  
The One

The paper presents the results of radionuclides determination in moss (Homolothecium sp., Hypnum Cupressiforme sp., and Brachythecium sp.) and lichen (Cladonia sp.) sampled in the region of Eastern Serbia during 1996-2010. The activities in moss are in the range of 100-500 Bq/kg d. w. for 40K, and 5-50 Bq/kg d. w. for 226Ra and 232Th, while the ?soil-to-moss? transfer factors are 0.45 for 40K, 3 for 226Ra, and 0.3 for 232Th. The spatial distribution of the 137Cs activities is highly non-uniform; some values reach 500 Bq/kg d. w., with less than 10% of the samples, mainly the ones taken prior to 2000, with the activity above 1000 Bq/kg d. w. The variations in the content of natural radionuclides among the moss species are not significant. The frequency pattern of the activities of natural radionuclides in lichen is similar to the one in moss, but the activities in lichen are to some extent lower. The mean activity of 137Cs in lichen is below 400 Bq/kg d. w. The mean activities of 7Be in moss and lichen sampled in 2006 and 2008 are in the range of 41-122 Bq/kg d. w., with pronounced variations between the sampling sites.

scholarly journals Comparison of dry and wet deposition of particulate matter in near-surface waters during summer

PLoS ONE ◽  
2018 ◽  
Vol 13 (6) ◽  
pp. e0199241 ◽  
Author(s):  
Yanan Wu ◽  
Jiakai Liu ◽  
Jiexiu Zhai ◽  
Ling Cong ◽  
Yu Wang ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Surface Waters ◽  
Wet Deposition ◽  
Near Surface ◽  
Dry And Wet Deposition

scholarly journals Plant assemblages in atmospheric deposition

2019 ◽  
Author(s):  
Ke Dong ◽  
Cheolwoon Woo ◽  
Naomichi Yamamoto
Keyword(s):  
Atmospheric Deposition ◽  
Dry Deposition ◽  
Wet Deposition ◽  
High Throughput Sequencing ◽  
Sampling Site ◽  
Its2 Region ◽  
Dry And Wet Deposition ◽  
Custom Made ◽  
Plant Assemblages ◽  
Cloud Scavenging

Abstract. Plants disperse spores, pollen, and fragments into the atmosphere. The emitted plant particles return to the pedosphere by sedimentation (dry deposition) and/or by precipitation (wet deposition) and constitute part of the global cycle of substances. However, little is known regarding the taxonomic diversities and flux densities of plant particles deposited from the atmosphere. Here, plant assemblages were examined in atmospheric deposits collected in Seoul in South Korea. A custom-made automatic sampler was used to collect dry and wet deposition samples for which plant assemblages and quantities were determined using high-throughput sequencing and quantitative PCR with universal plant-specific primers targeting the internal transcribed spacer 2 (ITS2) region. Dry deposition was dominant for atmospheric deposition of plant particles (87 %). The remaining 13 % was deposited by precipitation, i.e., wet deposition, via rainout (in-cloud scavenging) and/or washout (below-cloud scavenging). Plant assemblage structures did not differ significantly between dry and wet deposition, indicating that washout, which is likely taxon-independent, predominated rainout, which is likely taxon-dependent, for wet deposition of atmospheric plant particles. A small number of plant genera were detected only in wet deposition, indicating that they might be specifically involved in precipitation through acting as nucleation sites in the atmosphere. Future interannual monitoring will control for the seasonality of atmospheric plant assemblages observed at our sampling site. Future global monitoring is also proposed to investigate geographical differences and investigate whether endemic species are involved in plant-mediated bioprecipitation in regional ecological systems.

scholarly journals Mapping recession risk for cultural heritage stone in Mexico City due to dry and wet deposition of urban air pollutants

Atmósfera ◽  
2017 ◽  
Vol 30 (3) ◽  
pp. 189-207 ◽  
Author(s):  
Javier Omar Castillo-Miranda ◽  
◽  
Ricardo Torres-Jadón ◽  
José Agustín García-Reynoso ◽  
Bertha E. Mar-Morales ◽  
...  
Keyword(s):  
Cultural Heritage ◽  
Mexico City ◽  
Air Pollutants ◽  
Wet Deposition ◽  
Urban Air ◽  
Dry And Wet Deposition
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