Distribution Levels of Particulate Matter Fractions (<2.5 µm, 2.5-10 µm and >10 µm) at Seven Primary Schools in a European Ceramic Cluster

This study addresses the concentration of particulate matter and their size using a statistical analysis of data obtained inside seven schools located in the towns of Castellón (S1, S2, and S3), Alcora (S4, S5, and S6) and Lucena (S7) in northeast Spain. Samples were taken for five to eight hours, depending on school hours, to obtain a monthly sample for each school. The main goal of this study is to assess the differences depending on the type of location and the sampling point to be able to design corrective measures that improve the habitability and safety of the teaching spaces analyzed. The lowest concentrations of fine particulate matter, less than 2.5 µm, were registered at the rural location. The values of these particles found in industrial and urban locations were not substantially different. In the case of particulate matter between 2.5 and 10 µm, significant differences were observed between the three types of locations. The lowest concentrations of particles larger than 10 µm were registered at the rural location, and the highest concentrations were found at the industrial locations. Among the urban stations, the particle concentration of this fraction in station S2 was significantly higher than that in stations S1 and S3, which had similar concentrations. These values are also similar to those registered at school S6, which is at an industrial location. The resuspension of particles from both indoor sources as well as those transported from the outside is an important factor in the concentrations of particles inside classrooms.Universitat Jaume I “Pla de Promoció de la Investigació-Fundació Caixa Castelló-Bancaixa”. Reference code: P1·1B2005–18.S

Factores determinantes del precio de los tomates de variedades tradicionales: un análisis de precios hedónicos

[EN] The goal of this study is to determine the economic value (implicit price) that consumers give to different characteristics with influence in the purchase decision of traditional varieties of tomatoes. To accomplish this aim three hedonic price models have been estimated with data obtained from an experi-mental auction where participants should bid and value hedonically the tomatoes. The results point to a re-lationship between the price and the income level of the participants, as well as the tomato hedonic ratings.[ES] El presente trabajo tiene como objetivo determinar el valor económico (precio implícito) que otorgan los consumidores a diversas características influyentes en la decisión de compra de tomates de variedades tradicionales. Para ello se han estimado tres modelos de precios hedónicos con datos obtenidos a partir de una subasta experimental en la que los participantes, además de pujar por los tomates del estudio, debían realizar una valoración hedónica de los mismos. Los resultados apuntan hacia una relación entre el precio y el nivel de renta de los participantes, así como con la valoración hedónica que hacen de los tomates.Este trabajo forma parte del proyecto “Efecto de la introducción de genes de resistencia a virosis sobre la calidad organoléptica y otros caracteres agronómicos de variedades de tomate localmente adaptadas” (AGL2008-03822/AGR) financiado por el Ministerio de Ciencia e Innovación del Gobierno de España en su convocatoria de ayudas a proyectos I+D 2008.Martínez-Carrasco, L.; Brugarolas, M.; Martínez Poveda, Á.; Ros, MDM.; Ruiz Martínez, JJ. (2014). Determinants of the price of traditional varieties of tomatoes: A hedonic price analysis. Economía Agraria y Recursos Naturales - Agricultural and Resource Economics. 14(2):81-95. https://doi.org/10.7201/earn.2014.02.04SWORD819514