Laboratorio Of Medio Ambiente Of Galicia

Galicia, Spain

Laboratorio Of Medio Ambiente Of Galicia

Galicia, Spain

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Dios M.,University of Santiago de Compostela | Moran M.,University of Santiago de Compostela | Carrera F.,University of Santiago de Compostela | Pombo C.,University of Santiago de Compostela | And 4 more authors.
Proceedings of the 15th International Conference on Harmonisation within Atmospheric Dispersion Modelling for Regulatory Purposes, HARMO 2013 | Year: 2013

The European Pollutant Release and Transfer Register (E-PRTR) is the Europe-wide emissions register that provides easily accessible environmental information about industrial facilities in Europe. In this context, reporting of E-PRTR data to the European Commission requires that the Member States assess the quality of the data submitted. Errors or omissions from these data should be detected during the review process, in order to be corrected, claiming accurate and, also, additional information to the industrial sources. In order to check and validate E-PRTR data, PRTRVal software tool was developed and applied to the Galician region industrial facilities; this software provides a systematic procedure to the validation of industrial emissions, applying a bottom-up approach (based in the flowsheeting analysis of every facility) to obtain a reference inventory. It combines both standard (EMEP/CORINAIR, U.S. EPA, IPCC, etc.) and facilities specific emission factors, and their activity factors yearly reported. Application of this validation procedure to the atmospheric E-PRTR data in Galicia shows that 45% of the 2010 emissions reported by the industries need either correction or complementary information. In addition, the omission of information represented 22% of the errors.


Souto J.A.,University of Santiago de Compostela | Saavedra S.,University of Santiago de Compostela | Rodriguez A.,University of Santiago de Compostela | Dios M.,University of Santiago de Compostela | And 5 more authors.
Proceedings of the 15th International Conference on Harmonisation within Atmospheric Dispersion Modelling for Regulatory Purposes, HARMO 2013 | Year: 2013

Air quality models have been developed to better understanding the behaviour of the pollutants in the atmosphere, among other applications. One of them is about the influence of emission inventories and large sources on local and regional air quality. Another is the optimal design and assessment of air quality monitoring networks. This work aims at three different goals, (1) Optimal design of a regional air quality network: one-year high resolution (3 km2) meteorological and air quality simulations was applied to establish the past and future most polluted areas over the Galicia (NW of Spain). Simulations was built coupling WRF-ARW meteorological model to CHIMERE v. 2008c air quality model (validated with DELTA Tool), using 2008 year as meteorological basis. For past simulation, a detailed emission inventory was done, based in a combination of the Portuguese (area sources) and Galician (EMIGAL, point and area sources) emission inventories, with EMEP inventory for the year 2008. Future simulation considers a projection of emissions depending on the maxima authorized activities in the region. (2) To evaluate the effects of European air pollutants emissions between 2001 and 2008 over the ozone levels in the NW of the Iberian Peninsula (NWIP). Results show that no effect was obtained in the rural ozone levels of this region, due to the change of European emissions. (3) To evaluate the effect of removing all the emissions of the largest coal-fired power plant (1400 MW) in this region. In this case, a high resolution (3×3 km2) regional emissions inventory over NWIP was also applied, including more than 300 sources as point sources. Suppressing the power plant emissions derived in an increment of ozone levels around it; and, no effect in the ozone levels was observed over the NWIP region and surrounding areas.


Souto J.A.,University of Santiago de Compostela | Saavedra S.,University of Santiago de Compostela | Rodriguez A.,University of Santiago de Compostela | Dios M.,University of Santiago de Compostela | And 6 more authors.
International Journal of Environment and Pollution | Year: 2014

Different operational air quality forecasts (ESSEM Cost Action 0602) are currently available in Europe. However, most of them are not suitable for regional application and, also, their coarse outputs do not fit well with air quality management needs. In this work, PRESAXIO regional air quality modelling system is validated and applied over Galicia (NW of Spain), including WRF and CHIMERE models. WRF validation is done by comparison with surface meteorological measurements; CHIMERE validation applies DELTA tool with AirBase data. PRESAXIO applications include an operational air quality forecast, design of a regional air quality monitoring network, and impact assessment of EMEP emissions changes in regional O3 peaks. Copyright © 2014 Inderscience Enterprises Ltd.


Dios M.,University of Santiago de Compostela | Moran M.,University of Santiago de Compostela | Carrera F.,University of Santiago de Compostela | Pombo C.,University of Santiago de Compostela | And 4 more authors.
International Journal of Environment and Pollution | Year: 2014

The European pollutant release and transfer register (E-PRTR) is the Europe-wide emissions register that provides accessible environmental information about industrial facilities. Reporting of E-PRTR data to the European Commission requires that the member states assess the quality of their data. The errors and omissions in these data should be detected during the review process and corrected, claiming accurate and additional information to the industrial sources. In order to validate E-PRTR data, PRTRval software tool was developed and applied to the Galician industrial facilities. It provides a systematic procedure for the validation of emissions, based on a bottom-up approach to obtain a reference inventory that combines both standard and specific emission factors, and the activity factors yearly reported. The application of this validation procedure to the air pollutants 2010 E-PRTR dataset in Galicia shows that 54% of the emissions need correction or complementary information. The lack of information represented 24% of the errors. Copyright © 2014 Inderscience Enterprises Ltd.


Moreda-Pineiro J.,University of La Coruña | Alonso-Rodriguez E.,University of La Coruña | Turnes-Carou I.,University of La Coruña | Moscoso-Perez C.,University of La Coruña | And 5 more authors.
Journal of Atmospheric Chemistry | Year: 2016

The inorganic chemical composition (major ions and trace metals) of bulk deposition samples collected monthly with bulk collectors at seven Atlantic Coastal European cities (Galicia, Northwest of Spain) during wet season (September 2011 to March 2012) has been assessed and compared. Trace metals (Al, As, Ba, Co, Cr, Cu, Fe, Mn, Ni, Pb, Sr, V and Zn) were analysed in soluble fraction and non-soluble fraction (after acid extraction) of the bulk deposition by inductively coupled plasma-mass spectrometry. Major inorganic ions (Cl−, NO3 −, SO4 2−, Na+, K+, Ca2+, Mg2+ and NH4 +) were analysed in the soluble fraction of the bulk deposition by capillary zone electrophoresis. Univariate analysis (ANOVA and Multiple Range Test) according to the location of each sampling site was performed. Results also suggest a great influence of cleaner Atlantic air masses. After partition coefficients and enrichment factor estimation, similar sources could be assigned for the ionic and metal composition of bulk deposition at seven urban sites. © 2016 Springer Science+Business Media Dordrecht


Rodriguez A.,University of Santiago de Compostela | Dios M.,University of Santiago de Compostela | Saavedra S.,University of Santiago de Compostela | Souto J.A.S.,University of Santiago de Compostela | And 10 more authors.
NATO Science for Peace and Security Series C: Environmental Security | Year: 2013

The aim of this work is the assessment of changes in modelled regional air quality, by the comparison of the EMEP inventory vs. the application of a regional inventory based in a mixed top-down and bottom-up methodology over the NW of the Iberian Peninsula. Air quality simulations were carried out with the CHIMERE model for an ozone episode in 2008. Comparison against measurements using the Delta Tool show better scores for the regional inventory daily maxima 8 and 1 h ozone simulation results. © Springer Science+Business Media Dordrecht 2014.


Dios M.,University of Santiago de Compostela | Souto J.A.,University of Santiago de Compostela | Casares J.J.,University of Santiago de Compostela | Gallego N.,Laboratorio Of Medio Ambiente Of Galicia | And 4 more authors.
WIT Transactions on Ecology and the Environment | Year: 2012

Gridded chemical transport models are often used for the assessment of air quality. For European continental scale the EMEP emissions inventory with a low 50x50 km2 resolution is yearly available. However, current air quality models are usually applied with higher spatial resolution, in order to obtain representative results, especially in regional domains; therefore, a simple topdown approach based in the spatial interpolation of EMEP emissions is not appropriate. On the other hand, a bottom-up approach requires a huge amount of data to estimate the emissions source-by-source, which are not always justified for all the sources. The aim of this work is the development and application of a mixed top-down and bottom-up methodology for high resolution emissions inventories, based on EMEP emission data and other emissions data source (PRTR, UNFCCC and LRTAP). The emissions of the main industrial and road traffic sources (>50000 inhabitants cities, motorways) were obtained by a bottom-up approach, with industrial emissions considered from point sources. Other emissions from sparse sources are estimated following a top-down approach, based on the EMEP inventory, following a spatial segregation methodology which considers different geographical parameters, which are dependent on the source type. Data processing was performed using ArcMap GIS, following the CORINAIR structure [3]. Therefore, results are easily updatable and they can beanalysed jointly to the geographical parameters, in order to check the inventory coherence before its application to an air quality model. © 2012 WIT Press.


Dios M.,University of Santiago de Compostela | Moran M.,University of Santiago de Compostela | Carrera F.,University of Santiago de Compostela | Sout J.A.,University of Santiago de Compostela | And 3 more authors.
WIT Transactions on Ecology and the Environment | Year: 2012

Since 2008, E-PRTR is the European Emissions and Transfer Register of Pollutants, which was set to accomplish the UNECE Aarhus Convention about the information, public participation in decisions and access to the judgement in environmental issues. This pollutants emissions inventory follows a methodology based in the imperative declaration of emissions into the atmosphere and to water by the potential sources, included in the Directive 96/61/CE. As a consequence, the accuracy of this inventory depends on the information declared by the sources. In this work, a systematic methodology to validate the declared emissions was designed and applied to the Galician region. This methodology is based in a data structure of plant/activity-process-sourcepollutant, that is, a flowsheeting analysis of every plant was developed in order to associate each process to each source (i.e. chimney) at the same plant; with this approach, estimation of the pollutants emissions from every source is obtained by the calculation of emissions by process, based in different emissions factors. Of course, complementary data from the processes (i.e. fuel consumption, energy production, ...) is required. Results of the E-PRTR for 2008 and 2010 years at Galicia show significant differences between the emissions distribution by sector, depending on the pollutant; this can be explained by changes in the processes technologies and performance. About the validation, in a first stage less than 50% of the sources provided acceptable emissions with the complementary information for validation; some of them complete this information upon request. © 2012 WIT Press.

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