Assessment of Natural Radioactivity, Heavy Metals and Particulate Matter in Air and Soil around a Coal-Fired Power Plant—An Integrated Approach

A comprehensive study of the environmental radioactivity covered in a distance up to 20 km from a point source—two stacks of a coal-fired power plant. Airborne particulate matter was collected, and the element composition on the 30 cm soil profile was determined. The range of activity concentrations...

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Autores principales:	Maria de Lurdes Dinis, António Fiúza, Joaquim Góis, José Soeiro de Carvalho, Ana C. Meira Castro
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	coal-fired power plant emissions gamma dose rates trace metals particulate matter spatial variability soil Meteorology. Climatology QC851-999
Acceso en línea:	https://doaj.org/article/ae4a2207fe2d4a3b9b07663c804cbafe
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spelling	oai:doaj.org-article:ae4a2207fe2d4a3b9b07663c804cbafe2021-11-25T16:44:43ZAssessment of Natural Radioactivity, Heavy Metals and Particulate Matter in Air and Soil around a Coal-Fired Power Plant—An Integrated Approach10.3390/atmos121114332073-4433https://doaj.org/article/ae4a2207fe2d4a3b9b07663c804cbafe2021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4433/12/11/1433https://doaj.org/toc/2073-4433A comprehensive study of the environmental radioactivity covered in a distance up to 20 km from a point source—two stacks of a coal-fired power plant. Airborne particulate matter was collected, and the element composition on the 30 cm soil profile was determined. The range of activity concentrations of <sup>226</sup>Ra, <sup>232</sup>Th and <sup>40</sup>K from the studied areas varies from 8 Bq/kg to 41 Bq/kg, 5 to 72 Bq/kg and 62 to 795 Bq/kg, respectively. The activities values are increased by 44% for <sup>226</sup>Ra, 37% for <sup>40</sup>K, and 75% for <sup>232</sup>Th in the prevailing wind direction. For some elements, the respective concentration in the soil is above the maximum permissible level for all types of soil use, particularly for the arsenic concentration. The deposition flux ranged from 0.36 to 5.70 (g m<sup>−2</sup> per month) in the first sampling campaign and from 0.02 to 3.10 (g m<sup>−2</sup> per month) for the second sampling campaign. Maps on the spatial distribution of gamma dose rates, radionuclides activity concentrations, deposition flux and trace metals in topsoil were developed for the study region. These maps are in accordance with higher values in specific locations in the vicinity of the coal-fired power plant, showing the influence of point sources, and for locations within 6 and 20 km from the stacks, particularly in the prevailing wind direction.Maria de Lurdes DinisAntónio FiúzaJoaquim GóisJosé Soeiro de CarvalhoAna C. Meira CastroMDPI AGarticlecoal-fired power plant emissionsgamma dose ratestrace metalsparticulate matterspatial variabilitysoilMeteorology. ClimatologyQC851-999ENAtmosphere, Vol 12, Iss 1433, p 1433 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	coal-fired power plant emissions gamma dose rates trace metals particulate matter spatial variability soil Meteorology. Climatology QC851-999
spellingShingle	coal-fired power plant emissions gamma dose rates trace metals particulate matter spatial variability soil Meteorology. Climatology QC851-999 Maria de Lurdes Dinis António Fiúza Joaquim Góis José Soeiro de Carvalho Ana C. Meira Castro Assessment of Natural Radioactivity, Heavy Metals and Particulate Matter in Air and Soil around a Coal-Fired Power Plant—An Integrated Approach
description	A comprehensive study of the environmental radioactivity covered in a distance up to 20 km from a point source—two stacks of a coal-fired power plant. Airborne particulate matter was collected, and the element composition on the 30 cm soil profile was determined. The range of activity concentrations of <sup>226</sup>Ra, <sup>232</sup>Th and <sup>40</sup>K from the studied areas varies from 8 Bq/kg to 41 Bq/kg, 5 to 72 Bq/kg and 62 to 795 Bq/kg, respectively. The activities values are increased by 44% for <sup>226</sup>Ra, 37% for <sup>40</sup>K, and 75% for <sup>232</sup>Th in the prevailing wind direction. For some elements, the respective concentration in the soil is above the maximum permissible level for all types of soil use, particularly for the arsenic concentration. The deposition flux ranged from 0.36 to 5.70 (g m<sup>−2</sup> per month) in the first sampling campaign and from 0.02 to 3.10 (g m<sup>−2</sup> per month) for the second sampling campaign. Maps on the spatial distribution of gamma dose rates, radionuclides activity concentrations, deposition flux and trace metals in topsoil were developed for the study region. These maps are in accordance with higher values in specific locations in the vicinity of the coal-fired power plant, showing the influence of point sources, and for locations within 6 and 20 km from the stacks, particularly in the prevailing wind direction.
format	article
author	Maria de Lurdes Dinis António Fiúza Joaquim Góis José Soeiro de Carvalho Ana C. Meira Castro
author_facet	Maria de Lurdes Dinis António Fiúza Joaquim Góis José Soeiro de Carvalho Ana C. Meira Castro
author_sort	Maria de Lurdes Dinis
title	Assessment of Natural Radioactivity, Heavy Metals and Particulate Matter in Air and Soil around a Coal-Fired Power Plant—An Integrated Approach
title_short	Assessment of Natural Radioactivity, Heavy Metals and Particulate Matter in Air and Soil around a Coal-Fired Power Plant—An Integrated Approach
title_full	Assessment of Natural Radioactivity, Heavy Metals and Particulate Matter in Air and Soil around a Coal-Fired Power Plant—An Integrated Approach
title_fullStr	Assessment of Natural Radioactivity, Heavy Metals and Particulate Matter in Air and Soil around a Coal-Fired Power Plant—An Integrated Approach
title_full_unstemmed	Assessment of Natural Radioactivity, Heavy Metals and Particulate Matter in Air and Soil around a Coal-Fired Power Plant—An Integrated Approach
title_sort	assessment of natural radioactivity, heavy metals and particulate matter in air and soil around a coal-fired power plant—an integrated approach
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ae4a2207fe2d4a3b9b07663c804cbafe
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Assessment of Natural Radioactivity, Heavy Metals and Particulate Matter in Air and Soil around a Coal-Fired Power Plant—An Integrated Approach

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