Trends in soil mercury stock associated with pollution sources on a Mediterranean island (Majorca, Spain).

Autor: Rodríguez Martin JA; Department of Environment, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), ES, 28040, Madrid, Spain. Electronic address: rmartin@inia.es., Gutiérrez C; Instituto de Ciencias Agrarias, ICA- CSIC, Serrano, 114bis, 28006, Madrid, Spain. Electronic address: carmen.g@ica.csic.es., Escuer M; Instituto de Ciencias Agrarias, ICA- CSIC, Serrano, 114bis, 28006, Madrid, Spain. Electronic address: escuer@ica.csic.es., Martín-Dacal M; Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Parque Científico y Tecnológico, UPM Campus de Montegancedo, 28223, Madrid, Spain. Electronic address: marina.md96@gmail.com., Ramos-Miras JJ; Dpto. Didáctica Ciencias Sociales y Experimentales, Universidad de Córdoba, Avda. San Alberto Magno S/n, Córdoba, 14071, Spain. Electronic address: jjramos@uco.es., Roca-Perez L; Dept. Biologia Vegetal, Facultat de Farmàcia, Universitat de València, Av. Vicent Andrés I Estellés S/n, 46100, Burjassot, Valencia, Spain. Electronic address: Luis.Roca@uv.es., Boluda R; Dept. Biologia Vegetal, Facultat de Farmàcia, Universitat de València, Av. Vicent Andrés I Estellés S/n, 46100, Burjassot, Valencia, Spain. Electronic address: boluda@uv.es., Nanos N; School of Forestry and Natural Environment, Aristotle University of Thessaloniki, 59 Moschounti Str., 55134, Foinikas-Thessaloniki, Greece. Electronic address: nikosnanos@for.auth.gr.
Jazyk: angličtina
Zdroj: Environmental pollution (Barking, Essex : 1987) [Environ Pollut] 2021 Aug 15; Vol. 283, pp. 117397. Date of Electronic Publication: 2021 May 18.
DOI: 10.1016/j.envpol.2021.117397
Abstrakt: 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.
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Databáze: MEDLINE
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