Trends in Atmospheric Nitrogen Deposition in Macedonia Studied by Using the Moss Biomonitoring Technique

This study examined the nitrogen content in moss samples collected across Macedonia over a 15-year period (2005, 2010, 2015 and 2020) from 72 consistent sampling locations. The nitrogen content was determined using the Kjeldahl method, providing insight into the trends of atmospheric nitrogen deposi...

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Main Authors: Katerina Bačeva Andonovska, Trajče Stafilov, Robert Šajn, Biljana Jordanoska Shishkoska, Valentina Pelivanoska, Lambe Barandovski
Format: Article
Language:English
Published: MDPI AG 2024-10-01
Series:Atmosphere
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Online Access:https://www.mdpi.com/2073-4433/15/11/1297
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author Katerina Bačeva Andonovska
Trajče Stafilov
Robert Šajn
Biljana Jordanoska Shishkoska
Valentina Pelivanoska
Lambe Barandovski
author_facet Katerina Bačeva Andonovska
Trajče Stafilov
Robert Šajn
Biljana Jordanoska Shishkoska
Valentina Pelivanoska
Lambe Barandovski
author_sort Katerina Bačeva Andonovska
collection DOAJ
description This study examined the nitrogen content in moss samples collected across Macedonia over a 15-year period (2005, 2010, 2015 and 2020) from 72 consistent sampling locations. The nitrogen content was determined using the Kjeldahl method, providing insight into the trends of atmospheric nitrogen deposition across different regions. Descriptive statistical analyses, including spatial distribution maps, were used to compare the temporal variations and regional nitrogen levels. In addition, box-plots (P<sub>25</sub>–P<sub>75</sub>) and whiskers (P<sub>5</sub>–P<sub>95</sub>) were constructed to provide a comprehensive view of the variability across different tectonic units and zones, allowing for an in-depth understanding of the spatial distribution of nitrogen across the country. The study revealed that the median nitrogen content in moss samples decreased from 1.21% in 2005 to 1.04% in 2015, followed by a slight increase to 1.07% in 2020. The highest nitrogen concentrations were consistently found in areas with heavy agricultural activities and high traffic volumes, indicating the direct impact of these anthropogenic factors. The comparisons across regions and geological zones also highlighted the substantial variation in nitrogen levels, reflecting the diverse environmental pressures in different parts of Macedonia. This long-term analysis not only offers valuable insights into the trends in nitrogen pollution but also underlines the necessity for targeted policy interventions, particularly in the regions where nitrogen levels remain persistently high.
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spelling doaj-art-30a41facfb96405989ef475bc9be78152025-08-20T02:26:54ZengMDPI AGAtmosphere2073-44332024-10-011511129710.3390/atmos15111297Trends in Atmospheric Nitrogen Deposition in Macedonia Studied by Using the Moss Biomonitoring TechniqueKaterina Bačeva Andonovska0Trajče Stafilov1Robert Šajn2Biljana Jordanoska Shishkoska3Valentina Pelivanoska4Lambe Barandovski5Research Center for Environment and Materials, Macedonian Academy of Sciences and Arts, Krste Misirkov 2, 1000 Skopje, North MacedoniaInstitute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss Cyril and Methodius University in Skopje, P.O. Box 162, 1000 Skopje, North MacedoniaGeological Survey of Slovenia, Dimičeva 14, 1000 Ljubljana, SloveniaScientific Tobacco Institute—Prilep, University “St. Kliment Ohridski”, 7000 Bitola, North MacedoniaScientific Tobacco Institute—Prilep, University “St. Kliment Ohridski”, 7000 Bitola, North MacedoniaInstitute of Physics, Faculty of Natural Sciences and Mathematics, Ss Cyril and Methodius University in Skopje, P.O. Box 162, 1000 Skopje, MacedoniaThis study examined the nitrogen content in moss samples collected across Macedonia over a 15-year period (2005, 2010, 2015 and 2020) from 72 consistent sampling locations. The nitrogen content was determined using the Kjeldahl method, providing insight into the trends of atmospheric nitrogen deposition across different regions. Descriptive statistical analyses, including spatial distribution maps, were used to compare the temporal variations and regional nitrogen levels. In addition, box-plots (P<sub>25</sub>–P<sub>75</sub>) and whiskers (P<sub>5</sub>–P<sub>95</sub>) were constructed to provide a comprehensive view of the variability across different tectonic units and zones, allowing for an in-depth understanding of the spatial distribution of nitrogen across the country. The study revealed that the median nitrogen content in moss samples decreased from 1.21% in 2005 to 1.04% in 2015, followed by a slight increase to 1.07% in 2020. The highest nitrogen concentrations were consistently found in areas with heavy agricultural activities and high traffic volumes, indicating the direct impact of these anthropogenic factors. The comparisons across regions and geological zones also highlighted the substantial variation in nitrogen levels, reflecting the diverse environmental pressures in different parts of Macedonia. This long-term analysis not only offers valuable insights into the trends in nitrogen pollution but also underlines the necessity for targeted policy interventions, particularly in the regions where nitrogen levels remain persistently high.https://www.mdpi.com/2073-4433/15/11/1297nitrogenair pollutionmoss biomonitoringKjeldahl methodMacedonia
spellingShingle Katerina Bačeva Andonovska
Trajče Stafilov
Robert Šajn
Biljana Jordanoska Shishkoska
Valentina Pelivanoska
Lambe Barandovski
Trends in Atmospheric Nitrogen Deposition in Macedonia Studied by Using the Moss Biomonitoring Technique
Atmosphere
nitrogen
air pollution
moss biomonitoring
Kjeldahl method
Macedonia
title Trends in Atmospheric Nitrogen Deposition in Macedonia Studied by Using the Moss Biomonitoring Technique
title_full Trends in Atmospheric Nitrogen Deposition in Macedonia Studied by Using the Moss Biomonitoring Technique
title_fullStr Trends in Atmospheric Nitrogen Deposition in Macedonia Studied by Using the Moss Biomonitoring Technique
title_full_unstemmed Trends in Atmospheric Nitrogen Deposition in Macedonia Studied by Using the Moss Biomonitoring Technique
title_short Trends in Atmospheric Nitrogen Deposition in Macedonia Studied by Using the Moss Biomonitoring Technique
title_sort trends in atmospheric nitrogen deposition in macedonia studied by using the moss biomonitoring technique
topic nitrogen
air pollution
moss biomonitoring
Kjeldahl method
Macedonia
url https://www.mdpi.com/2073-4433/15/11/1297
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