The 40k used as tracer of saharan dust contributions
| Autor: | Perez-Martinez, Manuel, Dueñas-Buey, Mª Concepción, Cañete, Sergio, Gordo, Elisa, Cabello, María, Liger-Pérez, Esperanza |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | RIUMA. Repositorio Institucional de la Universidad de Málaga instname |
| Popis: | The present study is carried out in Málaga, frequently affected by intrusions of air masses with high concentrations of atmospheric particulate matter. 40K is a natural radionuclide and has been associated with the arrival of coarse re-suspended material from the Africa continent. A systematic 13-year analysis (January 2005-December 2017) of the concentration of radionuclides in bulk (wet + dry) deposition and PM10 air concentrations has been performed to test the possible utility of 40K as tracer of African mineral dust inputs in Málaga (4° 28ʹ 8ʺ W ;36° 43ʹ 40ʺ N). Also the atmospheric aerosols are collected using a high volume sampler during 9-year (January 2009-December 2017). It is a prerequisite to know the environmental long-term behaviour of radionuclides an a relatively large number of values are required for statistically meaningful conclusions . The identification of African dust events was carried by 96-hour back-trajectory analysis arriving at thee different heights (500 m, 1500m, 3000m a.g.l.) calculate with the HYSPLIT model , and by the information obtained from the output of the dust regional Atmospheric model (DREAM 8b). Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. |
| Databáze: | OpenAIRE |
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