Distribution of ions of marine origin in Galicia (NW Spain) as a function of distance from the sea |
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| Institution: | 1. Dpto. de Edafología y Química Agrícola, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain;2. Dpto. Ingeniería de los Recursos Naturales y Medio Ambiente, Universidad de Vigo, 36310 Vigo, Spain;1. Área de Edafoloxía e Química Agrícola, Departamento de Bioloxía Vexetal e Ciencia do Solo, Facultade de Ciencias, Universidade de Vigo, 32004, Ourense, Galiza, Spain;2. Departamento de Bioquímica do Solo, Instituto de Investigacións Agrobiolóxicas de Galiza (IIAG-CSIC), Apartado 122, Avda. Vigo s/n, 15780, Santiago de Compostela, Galiza, Spain;1. Center for Marine Materials Corrosion and Protection, College of Materials, Xiamen University, 422 S. Siming Rd, Xiamen, Fujian 361005, China;2. State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 422 S. Siming Rd, Xiamen, Fujian 361005, China;3. School of Mechanical and Mining Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia;1. Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Basque Country, Spain;2. Department of Mathematics and Experimental Sciences Didactics, Faculty of Education, Philosophy and Anthropology, University of the Basque Country UPV/EHU, II Building, Oñati Plaza 3, 20018 Donostia-San Sebastian, Basque Country, Spain;3. GEGENAA, EA3795, Université de Reims Champagne-Ardenne, CREA, 2 esplanade Roland Garros, Reims, France;4. Department of Analytical Chemistry, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), P.O. Box 450, 01080 Vitoria-Gasteiz, Basque Country, Spain;5. Research Group in Environmental Management and Sustainability, Faculty of Environmental Sciences, Universidad De La Costa, Calle 58 #55-66, 080002 Barranquilla, Atlántico, Colombia;1. Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, College of Civil Engineering, Shenzhen University, Guangdong, China;2. Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China;3. Department of Architecture and Civil Engineering, City University of Hong Kong, Hong Kong, China;4. Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong, China;1. Key Laboratory of Disaster Prevention and Structural Safety of China Ministry of Education, Guangxi University, Nanning 530004, China;2. School of Civil Engineering & Architecture, Guangxi University, Nanning 530004, China;3. Construction Department, Guangxi University of Finance and Economics, Nanning 530003, China;4. Guangxi Key Laboratory of Disaster Prevention and Structural Safety, School of Civil Engineering & Architecture, Guangxi University, Nanning 530004, China;1. School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China;2. School of Civil Engineering and Architecture, Weifang University of Science and Technology, Weifang 262700, China;3. College of Civil Engineering and Architecture, Jiangsu University of Science and Technology, Zhenjiang 212100, China;4. College of Civil & Water Conservancy Engineering, Ningxia University, Yinchuan 750021, China |
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| Abstract: | In order to know how far marine salts can be transported inland, bulk deposition was collected periodically at 9 sites located at increasing distances from the Atlantic coast in Galicia (NW Spain) and water samples taken from 16 streams, along a similar transect, were also analysed.In bulk deposition samples Cl− and Na+ were the ions that presented maximum concentrations especially until 57 km from the sea. Chloride appeared as the best marker of marine influence in the studied area, whereas Na+ showed variations attributable to other sources. On the other hand, Ca2+ and SO42− were more related to non-marine sources. From a factorial analysis of ion concentrations and deposition volumes, the ions with dominant marine origin appeared to be associated to precipitation.Ions analysed in stream waters after heavy rain events showed similar trends than those in bulk deposition, especially in the case of Cl−. Therefore, this methodological approach can be very useful to determine marine influence as it implies a great simplification in sampling. |
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