Trends in soil mercury stock associated with pollution sources on a Mediterranean island (Majorca, Spain)
| Autor: | José Antonio Rodríguez Martín, L. Roca-Pérez, Miguel Escuer, Rafael Boluda, Marina Martín-Dacal, Nikos Nanos, J.J. Ramos-Miras, Carmen Gutiérrez |
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| Přispěvatelé: | Ministerio de Ciencia e Innovación (España), Comunidad de Madrid, Rodríguez Martin, José Antonio, Gutiérrez, Carmen, Escuer, M., Martín-Dacal, Marina, Ramos-Miras, José Joaquín, Roca-Perez, Luis, Boluda, Rafael, Nanos, Nikos |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Pollution
Mediterranean climate 010504 meteorology & atmospheric sciences Health Toxicology and Mutagenesis media_common.quotation_subject chemistry.chemical_element 010501 environmental sciences Mediterranean soil Toxicology 01 natural sciences Spatial-temporal analysis Mediterranean Islands Soil Hg pollution Humans Soil Pollutants Stock (geology) 0105 earth and related environmental sciences media_common Islands General Medicine Mercury Soil Hg enriched Soil concentration Block (meteorology) Mercury (element) Coal chemistry Spain Total hg Coal-fired power plant Environmental science Physical geography Environmental Monitoring Power Plants |
| Popis: | 8 Pág. Centro de Biotecnología y Genómica de Plantas Hg is a global concern given its adverse effects on human health, food security and the environment, and it requiring actions to identify major local Hg sources and to evaluate pollution. Our study provides the first assessment of Hg stock trends on the entire Majorca surface, identifying major Hg sources by studying the spatiotemporal soil Hg variation at two successive times (2006 and 2016-17). The Hg soil concentration ranged from 14 to 258 μg kg-1 (mean 52 μg kg-1). Higher concentrations (over 100 μg kg-1) were found in two areas: (i) close to the Alcudia coal-fired power plant; (ii) in the city of La Palma. During the 11-year, the total Hg stock in Majorcan soil increased from 432.96 tons to 493.18 tones (14% increase). Based on a block kriging analysis, soil Hg enrichment due to power plant emissions was clearly detectable on a local scale (i.e. a shorter distance than 18 km from the power plant). Nonetheless, a significant island-wide Hg increase due to diffuse pollution was reported. This result could be extrapolated to other popular tourist destinations in the Mediterranean islands where tourism has increased in recent decades In short, more than 60 tons of Hg have accumulated on Majorca island in 11 years. We greatly appreciate the financial assistance provided by Spanish Ministry of Science and Innovation (Project CGL2013-43675-P) and CAM (Project AGRISOST-CM S2018/BAA-4330). |
| Databáze: | OpenAIRE |
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