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Fernando Barrio-Parra
Prospecting & Environment Laboratory (PROMEDIAM), Universidad Politécnica de Madrid, Alenza 4, 28003 Madrid, Spain

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Journal article
Published: 22 February 2021 in Remote Sensing
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La Banya spit, located at the south of the River Ebro Delta, is a sandy formation, developed by annexation of bars forming successive beach ridges, which are oriented and modeled by the eastern and southern waves. The initial ridges run parallel to the coastline, and above them small dunes developed, the crests of which are oriented by dominant winds, forming foredune ridges and barchans. This study attempted to test a number of techniques in order to understand the dune dynamic on this coastal spit between 2004 and 2012: LiDAR data were used to reconstruct changes to the surface and volume of the barchan dunes and foredunes; ground-penetrating radar was applied to obtain an image of their internal structure, which would help to understand their recent evolution. GPS data taken on the field, together with application of GIS techniques, made possible the combination of results and their comparison. The results showed a different trend between the barchan dunes and the foredunes. While the barchan dunes increased in area and volume between 2004 and 2012, the foredunes lost thickness. This was also reflected in the radargrams: the barchan dunes showed reflectors related to the growth of the foresets while those associated with foredunes presented truncations associated with storm events. However, the global balance of dune occupation for the period 2004–2012 was positive.

ACS Style

Inmaculada Rodríguez-Santalla; David Gomez-Ortiz; Tomás Martín-Crespo; María Sánchez; Isabel Montoya-Montes; Silvia Martín-Velázquez; Fernando Barrio; Jordi Serra; Juan Ramírez-Cuesta; Francisco Gracia. Study and Evolution of the Dune Field of La Banya Spit in Ebro Delta (Spain) Using LiDAR Data and GPR. Remote Sensing 2021, 13, 802 .

AMA Style

Inmaculada Rodríguez-Santalla, David Gomez-Ortiz, Tomás Martín-Crespo, María Sánchez, Isabel Montoya-Montes, Silvia Martín-Velázquez, Fernando Barrio, Jordi Serra, Juan Ramírez-Cuesta, Francisco Gracia. Study and Evolution of the Dune Field of La Banya Spit in Ebro Delta (Spain) Using LiDAR Data and GPR. Remote Sensing. 2021; 13 (4):802.

Chicago/Turabian Style

Inmaculada Rodríguez-Santalla; David Gomez-Ortiz; Tomás Martín-Crespo; María Sánchez; Isabel Montoya-Montes; Silvia Martín-Velázquez; Fernando Barrio; Jordi Serra; Juan Ramírez-Cuesta; Francisco Gracia. 2021. "Study and Evolution of the Dune Field of La Banya Spit in Ebro Delta (Spain) Using LiDAR Data and GPR." Remote Sensing 13, no. 4: 802.

Journal article
Published: 01 December 2020 in Environmental Pollution
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The performance of the radon (222Rn)-deficit technique has been evaluated at a site in which a complex DNAPL mixture (mostly hexachlorocyclohexanes and chlorobenzenes) has contaminated all four layers (from top to bottom: anthropic backfill, silt, gravel and marl) of the soil profile. Soil gas samples were collected at two depths (0.8 m and 1.7 m) in seven field campaigns and a total of 186 222Rn measurements were performed with a pulse ionization detector. A statistical assessment of the influence of field parameters on the results revealed that sampling depth and atmospheric pressure did not significantly affect the measurements, while the location of the sampling point and ground-level atmospheric temperature did. In order to remove the bias introduced by varying field temperatures and hence to be able to jointly interpret 222Rn measurements from different campaigns, 222Rn concentrations were rescaled by dividing each individual datum by the mean 222Rn concentration of its corresponding field campaign. Rescaled 222Rn maps showed a high spatial correlation between 222Rn minima and maximum contaminant concentrations in the top two layers of the soil profile, successfully delineating the surface trace of DNAPL accumulation in the anthropic backfill and silt layers. However, no correlation could be established between 222Rn concentrations in superficial soil gas and contaminant concentration in the deeper two layers of the soil profile. These results indicate that the 222Rn-deficit technique is unable to describe the vertical variation of contamination processes with depth but can be an effective tool for the preliminary characterization of sites in which the distance between the inlet point of the sampling probe and the contaminant accumulation falls within the effective diffusion length of 222Rn in the affected soil profile.

ACS Style

F. Barrio-Parra; M. Izquierdo-Díaz; J. Díaz-Curiel; E. De Miguel. Field performance of the radon-deficit technique to detect and delineate a complex DNAPL accumulation in a multi-layer soil profile. Environmental Pollution 2020, 269, 116200 .

AMA Style

F. Barrio-Parra, M. Izquierdo-Díaz, J. Díaz-Curiel, E. De Miguel. Field performance of the radon-deficit technique to detect and delineate a complex DNAPL accumulation in a multi-layer soil profile. Environmental Pollution. 2020; 269 ():116200.

Chicago/Turabian Style

F. Barrio-Parra; M. Izquierdo-Díaz; J. Díaz-Curiel; E. De Miguel. 2020. "Field performance of the radon-deficit technique to detect and delineate a complex DNAPL accumulation in a multi-layer soil profile." Environmental Pollution 269, no. : 116200.

Journal article
Published: 15 July 2020 in International Journal of Environmental Research and Public Health
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An openly accessible cellular automaton has been developed to predict the preferential migration pathways of contaminants by surface runoff in abandoned mining areas. The site where the validation of the results of the Contaminant Mass Transfer Cellular Automaton (CMTCA) has been carried out is situated on the steep flank of a valley in the Spanish northwestern region of Asturias, at the foot of which there is a village with 400 inhabitants, bordered by a stream that flows into a larger river just outside the village. Soil samples were collected from the steep valley flank where the mine adits and spoil heaps are situated, at the foot of the valley, and in the village, including private orchards. Water and sediment samples were also collected from both surface water courses. The concentration of 12 elements, including those associated with the Cu-Co-Ni ore, were analyzed by ICP-OES (Perkin Elmer Optima 3300DV, Waltham, MA, USA) and ICP-MS (Perkin Elmer NexION 2000, Waltham, MA, USA). The spatial representation of the model’s results revealed that those areas most likely to be crossed by soil material coming from source zones according to the CMTCA exhibited higher pollution indexes than the rest. The model also predicted where the probabilities of soil mass transfer into the stream were highest. The accuracy of this prediction was corroborated by the results of trace element concentrations in stream sediments, which, for elements associated with the mineral paragenesis (i.e., Cu, Co, Ni, and also As), increased between five- and nine-fold downstream from the predicted main transfer point. Lastly, the river into which the stream discharges is also affected by the mobilization of mined materials, as evidenced by an increase of up to 700% (in the case of Cu), between dissolved concentrations of those same elements upstream and downstream of the confluence of the river and the stream.

ACS Style

Fernando Barrio-Parra; Miguel Izquierdo-Díaz; Luis Jesús Fernández-Gutiérrez Del Álamo; Bárbara Biosca; Eduardo De Miguel. Modelling the Transference of Trace Elements between Environmental Compartments in Abandoned Mining Areas. International Journal of Environmental Research and Public Health 2020, 17, 5117 .

AMA Style

Fernando Barrio-Parra, Miguel Izquierdo-Díaz, Luis Jesús Fernández-Gutiérrez Del Álamo, Bárbara Biosca, Eduardo De Miguel. Modelling the Transference of Trace Elements between Environmental Compartments in Abandoned Mining Areas. International Journal of Environmental Research and Public Health. 2020; 17 (14):5117.

Chicago/Turabian Style

Fernando Barrio-Parra; Miguel Izquierdo-Díaz; Luis Jesús Fernández-Gutiérrez Del Álamo; Bárbara Biosca; Eduardo De Miguel. 2020. "Modelling the Transference of Trace Elements between Environmental Compartments in Abandoned Mining Areas." International Journal of Environmental Research and Public Health 17, no. 14: 5117.

Journal article
Published: 28 February 2020 in Environment International
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A blind field test with 136 independent measurements of radon (222Rn) in soil air retrieved from a depth of 0.8 m in a decommissioned lindane (γ-hexachlorocyclohexane) production plant was undertaken to evaluate the performance of the 222Rn-deficit technique as a screening methodology for the location and delineation of subsurface accumulations of complex mixtures of organic contaminants. Maps of 222Rn iso-concentrations were drawn and interpreted before direct analytical information regarding concentrations of hexachlorocyclohexanes, chlorobenzenes and BTEX compounds in soil, groundwater and soil air were disclosed to the authors. The location and extension of pollution hot spots inferred from the 222Rn campaigns agrees remarkably well with the analytical data obtained from the intrusive sampling campaigns and with the location of contaminant source zones (chemical reactor and waste-storage area) and geological sinks of those contaminants (paleochannel). Two main limitations to the applicability of the 222Rn-deficit technique were identified and assessed: The statistically significant variation of 222Rn concentrations with diurnal changes of ground-level air temperature and the maximum depth of investigation in the absence of significant advective and co-advective transport of radon. If the influence of those two factors is accounted for and/or minimized (by averaging replicated measurements during the workday and in different days), the 222Rn-deficit technique has the potential to be an efficient technique which delivers information in quasi-real time, with a much higher spatial density than that of intrusive techniques, at a much faster rate and at a significantly lower cost. The 222Rn-deficit technique is an effective tool for real-time site characterization only limited by diffusion length of radon and diurnal temperature variations.

ACS Style

Eduardo De Miguel; F. Barrio-Parra; Miguel Izquierdo Díaz; J. Fernández; J.E. García-González; R. Álvarez. Applicability and limitations of the radon-deficit technique for the preliminary assessment of sites contaminated with complex mixtures of organic chemicals: A blind field-test. Environment International 2020, 138, 105591 .

AMA Style

Eduardo De Miguel, F. Barrio-Parra, Miguel Izquierdo Díaz, J. Fernández, J.E. García-González, R. Álvarez. Applicability and limitations of the radon-deficit technique for the preliminary assessment of sites contaminated with complex mixtures of organic chemicals: A blind field-test. Environment International. 2020; 138 ():105591.

Chicago/Turabian Style

Eduardo De Miguel; F. Barrio-Parra; Miguel Izquierdo Díaz; J. Fernández; J.E. García-González; R. Álvarez. 2020. "Applicability and limitations of the radon-deficit technique for the preliminary assessment of sites contaminated with complex mixtures of organic chemicals: A blind field-test." Environment International 138, no. : 105591.

Article
Published: 15 January 2020 in Environmental Monitoring and Assessment
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Nowadays, the growing concern about the environmental problems affecting the subsoil has focussed efforts on the detection and characterization of contaminated sites through geophysical prospecting methods. In the present study, a case of a contaminated site by hydrocarbons and their study by means of time domain-induced polarization tomography is presented. The response in chargeability of porous media due to this kind of pollutant allows its delimitation using this method. However, one of the limitations for the application of this technique is the presence of lithologies that contain electro-metallic salts. These salts can produce anomalies of chargeability and mask those due to nonaqueous phase liquids. The studies were conducted in an area contaminated by fuel leaks from supply tanks within a train maintenance facility. Those leaks occurred while the tanks were in use, but since their dismantling, the leak stopped. The geology of the area presented strong heterogeneities and the access was limited by train tracks. In order to locate and characterize the contaminant plume, measurements of resistivity and chargeability were carried out. A grid of monitoring wells in this area was also available from which information about free-phase pollutants was obtained, and a new drilling was carried out to verify an unexpected anomaly. The results obtained show that the location of the plume by the geophysical techniques employed can lead to ambiguity, as an anomaly that does not correspond to contaminated areas appeared but to the presence of clays rich in electro-metallic components such as Mg, Fe, Mn and Al.

ACS Style

Bárbara Biosca; Lucía Arévalo-Lomas; Fernando Barrio-Parra; Jesús Díaz-Curiel. Application and limitations of time domain-induced polarization tomography for the detection of hydrocarbon pollutants in soils with electro-metallic components: a case study. Environmental Monitoring and Assessment 2020, 192, 1 -11.

AMA Style

Bárbara Biosca, Lucía Arévalo-Lomas, Fernando Barrio-Parra, Jesús Díaz-Curiel. Application and limitations of time domain-induced polarization tomography for the detection of hydrocarbon pollutants in soils with electro-metallic components: a case study. Environmental Monitoring and Assessment. 2020; 192 (2):1-11.

Chicago/Turabian Style

Bárbara Biosca; Lucía Arévalo-Lomas; Fernando Barrio-Parra; Jesús Díaz-Curiel. 2020. "Application and limitations of time domain-induced polarization tomography for the detection of hydrocarbon pollutants in soils with electro-metallic components: a case study." Environmental Monitoring and Assessment 192, no. 2: 1-11.

Journal article
Published: 01 March 2019 in Journal of Environmental Quality
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This study evaluates the results of the characterization of air pollution in urban green areas using edible plants. To this purpose, we examined the effect of location (i.e., three different levels of pollution), substrate (peat moss and vermiculite), and plant species (oilseed rape [ L.] and kale [ L.]) on the accumulation of trace elements on leaves. A total of 36 samples of unwashed leaves were digested with HNO-HO and analyzed for 27 elements by inductively coupled plasma mass spectrometry. Considering the location, plants exposed next to the road showed higher contents of traffic-related elements, and additionally, outdoors samples were enriched in marine aerosol ions. Cadmium and Pb concentrations did not exceed the European legal maximum levels for vegetables, so their consumption would be safe for human health. Results support the hypothesis that edible plants such as kale and rapeseed could be used as bioindicators of atmospheric pollution.

ACS Style

Miguel Izquierdo Díaz; Peter E. Holm; Fernando Barrio-Parra; Eduardo De Miguel; Jonas Duus Stevens Lekfeldt; Jakob Magid. Urban Allotment Gardens for the Biomonitoring of Atmospheric Trace Element Pollution. Journal of Environmental Quality 2019, 48, 518 -525.

AMA Style

Miguel Izquierdo Díaz, Peter E. Holm, Fernando Barrio-Parra, Eduardo De Miguel, Jonas Duus Stevens Lekfeldt, Jakob Magid. Urban Allotment Gardens for the Biomonitoring of Atmospheric Trace Element Pollution. Journal of Environmental Quality. 2019; 48 (2):518-525.

Chicago/Turabian Style

Miguel Izquierdo Díaz; Peter E. Holm; Fernando Barrio-Parra; Eduardo De Miguel; Jonas Duus Stevens Lekfeldt; Jakob Magid. 2019. "Urban Allotment Gardens for the Biomonitoring of Atmospheric Trace Element Pollution." Journal of Environmental Quality 48, no. 2: 518-525.

Chapter
Published: 01 January 2019 in Practical Perspectives on Educational Theory and Game Development
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In undergraduate university degrees, students start their first year with a high level of heterogeneity in terms of acquired curricular competences. Therefore, the teaching given in these courses must face the challenge of turning this heterogeneity, in principle counterproductive, into an added value that helps students to face the subjects with expectations of success. Consequently, an innovative approach in the teaching of the first degree courses is needed, moving towards adaptive and personalized learning based on the use of new technologies, facilitating the overcoming of learned competences regardless of the starting level of the student. Other works focus on adaptive learning to achieve the homogeneity in groups of students before the beginning of the group lessons. Unlike this “classical” approach, this chapter is based on maintaining the heterogeneity of knowledge and using it as a driving force to learn through interactions among group members.

ACS Style

Luis Fernández-Gutiérrezdelálamo; Luis F. Mazadiego; David Bolonio; Fernando Barrio-Parra; Miguel Izquierdo-Díaz. Combining Adaptive and Cooperative Learning Strategies to Deal With Heterogeneity in Large Groups. Practical Perspectives on Educational Theory and Game Development 2019, 185 -202.

AMA Style

Luis Fernández-Gutiérrezdelálamo, Luis F. Mazadiego, David Bolonio, Fernando Barrio-Parra, Miguel Izquierdo-Díaz. Combining Adaptive and Cooperative Learning Strategies to Deal With Heterogeneity in Large Groups. Practical Perspectives on Educational Theory and Game Development. 2019; ():185-202.

Chicago/Turabian Style

Luis Fernández-Gutiérrezdelálamo; Luis F. Mazadiego; David Bolonio; Fernando Barrio-Parra; Miguel Izquierdo-Díaz. 2019. "Combining Adaptive and Cooperative Learning Strategies to Deal With Heterogeneity in Large Groups." Practical Perspectives on Educational Theory and Game Development , no. : 185-202.

Book chapter
Published: 16 October 2018 in Urban Pollution
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This chapter discusses the analytical protocols that have been developed to assess the bioaccessibility of contaminants potentially able to impact human health. In order to evaluate a contaminant's bioaccessibility, the physiological conditions of the gastrointestinal tract or lung environment must be reproduced in the laboratory. Most research efforts in the bioaccessibility of trace elements have taken place in the context of urban environments. Urban soil is the most thoroughly studied solid matrix in urban environments as regards the bioaccessibility of trace elements in its composition. Harmonisation of gastrointestinal and lung bioaccessibility analytical protocols should be followed by unification of criteria for how their results are used and interpreted in human health risk assessments. Failure to consider this bioaccessibility in a risk assessment leads to numerical outcomes of risk that may overestimate the real value by more than one order of magnitude.

ACS Style

Eduardo De Miguel; Almudena Ordóñez; Fernando Barrio-Parra; Miguel Izquierdo Díaz; Rodrigo Álvarez; Juan Mingot; Susanne M. Charlesworth. Bioaccessibility of Trace Elements in Urban Environments. Urban Pollution 2018, 107 -118.

AMA Style

Eduardo De Miguel, Almudena Ordóñez, Fernando Barrio-Parra, Miguel Izquierdo Díaz, Rodrigo Álvarez, Juan Mingot, Susanne M. Charlesworth. Bioaccessibility of Trace Elements in Urban Environments. Urban Pollution. 2018; ():107-118.

Chicago/Turabian Style

Eduardo De Miguel; Almudena Ordóñez; Fernando Barrio-Parra; Miguel Izquierdo Díaz; Rodrigo Álvarez; Juan Mingot; Susanne M. Charlesworth. 2018. "Bioaccessibility of Trace Elements in Urban Environments." Urban Pollution , no. : 107-118.

Short research and discussion article
Published: 02 June 2018 in Environmental Science and Pollution Research
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The applicability of radon (222Rn) measurements to delineate non-aqueous phase liquids (NAPL) contamination in subsoil is discussed at a site with lithological discontinuities through a blind test. Three alpha spectroscopy monitors were used to measure radon in soil air in a 25,000-m2 area, following a regular sampling design with a 20-m2 grid. Repeatability and reproducibility of the results were assessed by means of duplicate measurements in six sampling positions. Furthermore, three points not affected by oil spills were sampled to estimate radon background concentration in soil air. Data histograms, Q-Q plots, variograms, and cluster analysis allowed to recognize two data populations, associated with the possible path of a fault and a lithological discontinuity. Even though the concentration of radon in soil air was dominated by this discontinuity, the characterization of the background emanation in each lithological unit allowed to distinguish areas potentially affected by NAPL, thus justifying the application of radon emanometry as a screening technique for the delineation of NAPL plumes in sites with lithological discontinuities.

ACS Style

Eduardo De Miguel; Fernando Barrio-Parra; Javier Elio; Miguel Izquierdo-Díaz; Jerónimo Emilio García-González; Luis Felipe Mazadiego; Rafael Medina. Applicability of radon emanometry in lithologically discontinuous sites contaminated by organic chemicals. Environmental Science and Pollution Research 2018, 25, 20255 -20263.

AMA Style

Eduardo De Miguel, Fernando Barrio-Parra, Javier Elio, Miguel Izquierdo-Díaz, Jerónimo Emilio García-González, Luis Felipe Mazadiego, Rafael Medina. Applicability of radon emanometry in lithologically discontinuous sites contaminated by organic chemicals. Environmental Science and Pollution Research. 2018; 25 (20):20255-20263.

Chicago/Turabian Style

Eduardo De Miguel; Fernando Barrio-Parra; Javier Elio; Miguel Izquierdo-Díaz; Jerónimo Emilio García-González; Luis Felipe Mazadiego; Rafael Medina. 2018. "Applicability of radon emanometry in lithologically discontinuous sites contaminated by organic chemicals." Environmental Science and Pollution Research 25, no. 20: 20255-20263.

Original paper
Published: 31 August 2017 in Environmental Geochemistry and Health
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A total of 74 samples of soil, sediment, industrial sludge, and surface water were collected in a Mediterranean estuarine system in order to assess the potential ecological impact of elevated concentrations of Co and Mn associated with a Terephthalic (PTA) and Isophthalic (PIPA) acids production plant. Samples were analyzed for elemental composition (37 elements), pH, redox potential, organic carbon, and CaCO3 content, and a group of 16 selected samples were additionally subjected to a Tessier sequential extraction. Co and Mn soil concentrations were significantly higher inside the industrial facility and around its perimeter than in background samples, and maximum dissolved Co and Mn concentrations were found in a creek near the plant’s discharge point, reaching values 17,700 and 156 times higher than their respective background concentrations. The ecological risk was evaluated as a function of Co and Mn fractionation and bioavailability which were controlled by the environmental conditions generated by the advance of seawater into the estuarine system during high tide. Co appeared to precipitate near the river mouth due to the pH increase produced by the influence of seawater intrusion, reaching hazardous concentrations in sediments. In terms of their bioavailability and the corresponding risk assessment code, both Co and Mn present sediment concentrations that result in medium to high ecological risk whereas water concentrations of both elements reach values that more than double their corresponding Secondary Acute Values.

ACS Style

F. Barrio-Parra; Javier Elío; E. De Miguel; J. E. García-González; M. Izquierdo; R. Álvarez. Environmental risk assessment of cobalt and manganese from industrial sources in an estuarine system. Environmental Geochemistry and Health 2017, 40, 737 -748.

AMA Style

F. Barrio-Parra, Javier Elío, E. De Miguel, J. E. García-González, M. Izquierdo, R. Álvarez. Environmental risk assessment of cobalt and manganese from industrial sources in an estuarine system. Environmental Geochemistry and Health. 2017; 40 (2):737-748.

Chicago/Turabian Style

F. Barrio-Parra; Javier Elío; E. De Miguel; J. E. García-González; M. Izquierdo; R. Álvarez. 2017. "Environmental risk assessment of cobalt and manganese from industrial sources in an estuarine system." Environmental Geochemistry and Health 40, no. 2: 737-748.

Original paper
Published: 01 February 2017 in Exposure and Health
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In order to characterize the influence of environmental factors in dust metal loadings inside homes in an urban environment and to evaluate the associated potential health risks, samples of settled indoor dust from 10 apartments in the urban area of Madrid (Spain) were collected with wet wipes. Cd, Cr, Cu, Pb, Zn, Ni, and Mn loads were determined by Atomic Absorption Spectroscopy (AAS) after a HNO3 + H2O2 digestion. The environmental factors evaluated were load distribution between rooms, number of residents, presence of smokers, traffic intensity, apartment elevation, and frequency of house cleaning. Tukey’s range test and stepwise multiple linear regression analysis revealed that metal dust loadings present two prevailing origins: (1) They present higher loadings in the entry hall, which suggest that dust is tracked indoors adhered to footwear and clothing and (2) they arise from tobacco smoking. Significant correlations were also observed between metal loadings and traffic intensity (Cr), number of residents (Cr, Pb, and Cu), number of days between cleaning (Ni), and flat height (Mn). A human health risk assessment considering a mechanistic hand-to-mouth model for dust ingestion and dermal absorption revealed that urban children are not expected to develop adverse health effects from exposure to trace elements in household dust. The contribution of this exposure scenario to the overall received dose should be included when assessing the background exposure of children to trace elements. A more precise assessment should attempt to reduce the significant uncertainty of the risk model output associated with estimates of exposure variables, deposition rates, and metal bioaccessibility.

ACS Style

F. Barrio-Parra; Eduardo De Miguel; S. Lázaro-Navas; A. Gómez; M. Izquierdo. Indoor Dust Metal Loadings: A Human Health Risk Assessment. Exposure and Health 2017, 10, 41 -50.

AMA Style

F. Barrio-Parra, Eduardo De Miguel, S. Lázaro-Navas, A. Gómez, M. Izquierdo. Indoor Dust Metal Loadings: A Human Health Risk Assessment. Exposure and Health. 2017; 10 (1):41-50.

Chicago/Turabian Style

F. Barrio-Parra; Eduardo De Miguel; S. Lázaro-Navas; A. Gómez; M. Izquierdo. 2017. "Indoor Dust Metal Loadings: A Human Health Risk Assessment." Exposure and Health 10, no. 1: 41-50.

Article
Published: 28 October 2016 in Estuaries and Coasts
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One-Line shoreline evolution models have been used as a tool to understand and forecast long-term coastal evolution. However, in some coastal environments, where the influence of the wind is important, the limitations of existing models preclude its direct application to characterize its effect on sediment transport processes. To fill this knowledge gap, we have developed a shoreline evolution model that includes the effect of wind on longshore sediment transport and accounts for beach-dune sedimentary exchange due to aeolian transport. The model produces quantitative estimates of sediment transport and exchanges rates alongshore, easing the assessment of the role of different forcing agents in coastline evolution. The model was applied to the Ebro north hemidelta coast. The results are used to discuss the relative importance of the wind interaction in the evolution of different coastline stretches. Aeolian sand transport at Riumar Beach could cause coastal erosion. At the rectilinear coast, aeolian exchange does not seem to influence the shoreline evolution but the wind-current interaction does. The model provides valuable data when considering the approach to be taken regarding conservation measures. Alongshore aeolian sediment transport can be useful when designing and placing aeolian sediment traps. Conservation of the Ebro north hemidelta coast needs to focus on increasing the river sediment supply. The application herein presented can be regarded as a first step in understanding wave and wind coupling effects in shoreline evolution.

ACS Style

Fernando Barrio-Parra; Inmaculada Rodríguez-Santalla; Rui Taborda; Mónica Ribeiro. A Modeling Approach to Assess the Key Factors in the Evolution of Coastal Systems: the Ebro North Hemidelta Case. Estuaries and Coasts 2016, 40, 758 -772.

AMA Style

Fernando Barrio-Parra, Inmaculada Rodríguez-Santalla, Rui Taborda, Mónica Ribeiro. A Modeling Approach to Assess the Key Factors in the Evolution of Coastal Systems: the Ebro North Hemidelta Case. Estuaries and Coasts. 2016; 40 (3):758-772.

Chicago/Turabian Style

Fernando Barrio-Parra; Inmaculada Rodríguez-Santalla; Rui Taborda; Mónica Ribeiro. 2016. "A Modeling Approach to Assess the Key Factors in the Evolution of Coastal Systems: the Ebro North Hemidelta Case." Estuaries and Coasts 40, no. 3: 758-772.

Journal article
Published: 01 October 2016 in Applied Geography
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ACS Style

Juan Miguel Ramírez-Cuesta; Inmaculada Rodríguez-Santalla; F. Javier Gracia; María José Sánchez-García; Fernando Barrio-Parra. Application of change detection techniques in geomorphological evolution of coastal areas. Example: Mouth of the River Ebro (period 1957–2013). Applied Geography 2016, 75, 12 -27.

AMA Style

Juan Miguel Ramírez-Cuesta, Inmaculada Rodríguez-Santalla, F. Javier Gracia, María José Sánchez-García, Fernando Barrio-Parra. Application of change detection techniques in geomorphological evolution of coastal areas. Example: Mouth of the River Ebro (period 1957–2013). Applied Geography. 2016; 75 ():12-27.

Chicago/Turabian Style

Juan Miguel Ramírez-Cuesta; Inmaculada Rodríguez-Santalla; F. Javier Gracia; María José Sánchez-García; Fernando Barrio-Parra. 2016. "Application of change detection techniques in geomorphological evolution of coastal areas. Example: Mouth of the River Ebro (period 1957–2013)." Applied Geography 75, no. : 12-27.

Article
Published: 06 September 2016 in Environmental Toxicology and Chemistry
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The authors discuss the geochemical behavior of arsenic (As), antimony (Sb), and selenium (Se) in urban gardens and the human health implications associated with urban agriculture. A total of 42 samples from 7 urban gardens in Madrid, Spain, were collected from the top 20 cm of soil. Concentrations of As, Sb, and Se and the main soil properties (i.e., total iron, pH, texture, calcium carbonate, and organic matter) were determined. A significant correlation was found between As and Sb and calcium carbonate, indicating the possibility of surface adsorption or ligand exchange with the carbonate group. Also, Sb seemed to form stable chelates with soil organic matter. On the other hand, Se showed a significant association with clay and iron content. The concentration of Sb in soil exceeded the recommended value for agricultural use in 70% of the urban gardens. A human health risk assessment resulted in acceptable levels of both noncarcinogenic and carcinogenic risks (although with elevated values of the latter), with As as the main risk driver and soil and food ingestion as the main exposure pathways. The numerical results of the risk assessment should be interpreted with caution given the considerable uncertainties in some exposure variables and the lack of quantitative values for the suspected carcinogenicity of Sb and Se. Environ Toxicol Chem 2016;9999:1–7. © 2016 SETAC

ACS Style

Eduardo De Miguel; Miguel Izquierdo; Amaia Gómez; Juan Mingot; Fernando Barrio-Parra. Risk assessment from exposure to arsenic, antimony, and selenium in urban gardens (Madrid, Spain). Environmental Toxicology and Chemistry 2016, 36, 544 -550.

AMA Style

Eduardo De Miguel, Miguel Izquierdo, Amaia Gómez, Juan Mingot, Fernando Barrio-Parra. Risk assessment from exposure to arsenic, antimony, and selenium in urban gardens (Madrid, Spain). Environmental Toxicology and Chemistry. 2016; 36 (2):544-550.

Chicago/Turabian Style

Eduardo De Miguel; Miguel Izquierdo; Amaia Gómez; Juan Mingot; Fernando Barrio-Parra. 2016. "Risk assessment from exposure to arsenic, antimony, and selenium in urban gardens (Madrid, Spain)." Environmental Toxicology and Chemistry 36, no. 2: 544-550.

Journal article
Published: 01 August 2016 in Computers & Geosciences
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Coastal dunes are sedimentary environments characterized by their high dynamism. Their evolution is determined by sedimentary exchanges between the beach-dune subsystems and the dune dynamics itself. Knowledge about these exchanges is important to prioritize management and conservation strategies of these environments. The aim of this work is the inclusion of the aeolian transport rates obtained using a calibrated cellular automaton to estimate the beach-dune sediment exchange rates in a real active dune field at El Fangar Spit (Ebro Delta, Spain). The dune dynamics model is able to estimate average aeolian sediment fluxes. These are used in combination with the observed net sediment budget to obtain a quantitative characterization of the sediment exchange interactions. The methods produce a substantial improvement in the understanding of coastal sedimentary systems that could have major implications in areas where the management and conservation of dune fields are of concern.

ACS Style

Fernando Barrio-Parra; Inmaculada Rodríguez-Santalla. Cellular automata to understand the behaviour of beach-dune systems: Application to El Fangar Spit active dune system (Ebro delta, Spain). Computers & Geosciences 2016, 93, 55 -62.

AMA Style

Fernando Barrio-Parra, Inmaculada Rodríguez-Santalla. Cellular automata to understand the behaviour of beach-dune systems: Application to El Fangar Spit active dune system (Ebro delta, Spain). Computers & Geosciences. 2016; 93 ():55-62.

Chicago/Turabian Style

Fernando Barrio-Parra; Inmaculada Rodríguez-Santalla. 2016. "Cellular automata to understand the behaviour of beach-dune systems: Application to El Fangar Spit active dune system (Ebro delta, Spain)." Computers & Geosciences 93, no. : 55-62.

Journal article
Published: 01 January 2014 in Computers & Geosciences
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Currently, dune field surveying is employed to assess dune net volume changes and their accretion and erosion patterns. In dune fields with complex sediment sources and sink interactions such as El Fangar Spit (Ebro Delta, Spain), it is difficult to establish the sediment input and output with only net volume changes estimated by dune field surveying. This work presents a free dune dynamic cellular model that incorporates algorithms that introduce wind data into the erosion and transport processes. The model can be applied to dune systems with variable wind regime. A calibration methodology based on the morphological reproduction of the observed dune field evolution is proposed. The model and the calibration methodology is applied to a region of El Fangar dune system surveyed with DGPS on 15th and 18th April 2012. The difference between the final measured dune state and the best morphological reproduction obtained with the model is employed to estimate the sediment flux. This operation yields an output sand flux of 98.8m^3 and an input of 292.6m^3. This algorithm could have a great impact on the study of complex dune systems where the dunes act as sinks and sources of beach sediments and in the characterization of the beach-dune interactions.

ACS Style

Fernando Barrio-Parra; Inmaculada Rodríguez-Santalla. A free cellular model of dune dynamics: Application to El Fangar spit dune system (Ebro Delta, Spain). Computers & Geosciences 2014, 62, 187 -197.

AMA Style

Fernando Barrio-Parra, Inmaculada Rodríguez-Santalla. A free cellular model of dune dynamics: Application to El Fangar spit dune system (Ebro Delta, Spain). Computers & Geosciences. 2014; 62 ():187-197.

Chicago/Turabian Style

Fernando Barrio-Parra; Inmaculada Rodríguez-Santalla. 2014. "A free cellular model of dune dynamics: Application to El Fangar spit dune system (Ebro Delta, Spain)." Computers & Geosciences 62, no. : 187-197.

Review
Published: 01 January 2013 in Structural Geology and Tectonics Field Guidebook — Volume 1
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Dune systems have a complex dynamics which is difficult to model purely physical due to the no linearity of the wind shear stress estimation, the complexity of the dune systems geomorphology and the difficult to obtain real world field data to test them. Cellular models offer an interesting alternative approach with simple data entry requirements and very good reproduction of dynamic processes observed in the real world. These models can be an useful tool in the study of the dynamics of the El Fangar spit dune system. The application of these models to the dune system data will help to predict morphological evolution, identify sediment sources and sinks, study the importance of formation factors and analyze possible future scenarios focused on climate change risk assessment. The actual cellular models had not been widely applied to real world dune systems so some improvements must to be taken into account in an attempt to approximate them more closely to complex real systems: integration of wind data as the driving force of the sand saltation process, introduce the possibility of study the system dynamics under a direction and velocity changing wind regime and couple a sand supply model to the dune dynamic model.

ACS Style

F. Barrio-Parra; I. Rodríguez-Santalla; M. Sánchez-García; Isabel Montoya-Montes. A Brief Review of Actual Dune Dynamics Modeling: Applicability to El Fangar Dune System (Ebro Delta-Spain). Structural Geology and Tectonics Field Guidebook — Volume 1 2013, 107 -110.

AMA Style

F. Barrio-Parra, I. Rodríguez-Santalla, M. Sánchez-García, Isabel Montoya-Montes. A Brief Review of Actual Dune Dynamics Modeling: Applicability to El Fangar Dune System (Ebro Delta-Spain). Structural Geology and Tectonics Field Guidebook — Volume 1. 2013; ():107-110.

Chicago/Turabian Style

F. Barrio-Parra; I. Rodríguez-Santalla; M. Sánchez-García; Isabel Montoya-Montes. 2013. "A Brief Review of Actual Dune Dynamics Modeling: Applicability to El Fangar Dune System (Ebro Delta-Spain)." Structural Geology and Tectonics Field Guidebook — Volume 1 , no. : 107-110.

Journal article
Published: 10 January 2010 in Ecological Modelling
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The majority of wildfires in the Mediterranean Basin are caused directly or indirectly by human activity. Many biophysical and socioeconomic factors have been used in quantitative analyses of wildfire risk. However, the importance and effects of socioeconomic factors in spatial modelling have been given inadequate attention. In this paper, we use different approaches to spatially model our data to examine the influence of human activity on wildfire ignition in the south west of the Madrid region, central Spain. We examine the utility of choropleth and dasymetric mapping with both Euclidean and functional distance surfaces for two differently defined wildfire seasons. We use a method from Bayesian statistics, the Weights of Evidence model, and produce ten predictive maps of wildfire risk: (1) five maps for a two-month fire season combining datasets of evidence variables and (2) five maps for the four-month fire season using the same dataset combinations. We find that the models produced from a choropleth mapping approach with spatial variables using Euclidian and functional distance surfaces are the best of the ten models. Results indicate that spatial patterns of wildfire ignition are strongly associated with human access to the natural landscape. We suggest the methods and results presented will be useful to optimize wildfire prevention resources in areas where human activity and the urban–forest interface are important factors for wildfire ignition.

ACS Style

Raul Romero-Calcerrada; Fernando Barrio-Parra; J.D.A. Millington; Carlos J. Novillo. Spatial modelling of socioeconomic data to understand patterns of human-caused wildfire ignition risk in the SW of Madrid (central Spain). Ecological Modelling 2010, 221, 34 -45.

AMA Style

Raul Romero-Calcerrada, Fernando Barrio-Parra, J.D.A. Millington, Carlos J. Novillo. Spatial modelling of socioeconomic data to understand patterns of human-caused wildfire ignition risk in the SW of Madrid (central Spain). Ecological Modelling. 2010; 221 (1):34-45.

Chicago/Turabian Style

Raul Romero-Calcerrada; Fernando Barrio-Parra; J.D.A. Millington; Carlos J. Novillo. 2010. "Spatial modelling of socioeconomic data to understand patterns of human-caused wildfire ignition risk in the SW of Madrid (central Spain)." Ecological Modelling 221, no. 1: 34-45.