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191.
Roque António José da Silva Paula F. de Almeida Rui Pedro Marques 《Journal of Material Cycles and Waste Management》2022,24(6):2385-2400
Journal of Material Cycles and Waste Management - A crushed concrete aggregate, processed from construction and demolition waste and a siderurgical aggregate, processed from electric arc furnace... 相似文献
192.
Bigliardi Ana Paula dos Santos Marina Fernandes Caroline Lopes Feijo Garcia Edariane Menestrino dos Santos Marcelli Evans Telles Jones Marcus Herbert Soares Maria Cristina Flores Baisch Ana Luíza Muccillo da Silva Júnior Flavio Manoel Rodrigues 《Environmental science and pollution research international》2022,29(31):46803-46812
Environmental Science and Pollution Research - Coal mining and burning activities in coal-fired power plants are among the most polluting activities in developing countries. In Brazil, the Candiota... 相似文献
193.
194.
Multiple exposure pathways and health risk assessment of selenium for children in a coal mining area
dos Santos Marina Ramires Paula Florêncio Gironés María Consuelo Revert Rubio Armendáriz María del Carmen Montelongo Soraya Paz Muccillo-Baisch Ana Luíza da Silva Junior Flavio Manoel Rodrigues 《Environmental science and pollution research international》2021,28(11):13562-13569
Environmental Science and Pollution Research - Selenium (Se) presents a dual role to human body, harmful or beneficial, depending on its concentration. The exposure to this element has been... 相似文献
195.
Macías-Quiroga Iván F. Henao-Aguirre Paula A. Marín-Flórez Alexander Arredondo-López Sandra M. Sanabria-González Nancy R. 《Environmental science and pollution research international》2021,28(19):23791-23811
Environmental Science and Pollution Research - Advanced oxidation processes (AOPs) constitute a developing area of particular interest for researchers in different fields due to their broad range... 相似文献
196.
This research addresses the need to improve our knowledge on the demand for national forests for recreation and offers an in-depth data analysis supported by the complementary use of count data and ordered models. From a policy-making perspective, while count data models enable the estimation of monetary welfare measures, ordered models allow for the wider use of the database and provide a more flexible analysis of data. The main purpose of this article is to analyse the individual forest recreation demand and to derive a measure of its current use value. To allow a more complete analysis of the forest recreation demand structure the econometric approach supplements the use of count data models with ordered category models using data obtained by means of an on-site survey in the Bussaco National Forest (Portugal). Overall, both models reveal that travel cost and substitute prices are important explanatory variables, visits are a normal good and demographic variables seem to have no influence on demand. In particular, estimated price and income elasticities of demand are quite low. Accordingly, it is possible to argue that travel cost (price) in isolation may be expected to have a low impact on visitation levels. 相似文献
197.
Hydrogeochemistry and statistical analysis applied to understand fluoride provenance in the Guarani Aquifer System, Southern Brazil 总被引:1,自引:0,他引:1
Maria Paula C. Marimon Ari Roisenberg Alexandra V. Suhogusoff Antonio Pedro Viero 《Environmental geochemistry and health》2013,35(3):391-403
High fluoride concentrations (up to 11 mg/L) have been reported in the groundwater of the Guarani Aquifer System (Santa Maria Formation) in the central region of the state of Rio Grande do Sul, Southern Brazil. In this area, dental fluorosis is an endemic disease. This paper presents the geochemical data and the combination of statistical analysis (Principal components and cluster analyses) and geochemical modeling to achieve the hydrogeochemistry of the groundwater and discusses the possible fluoride origin. The groundwater from the Santa Maria Formation is comprised of four different geochemical groups. The first group corresponds to a sodium chloride groundwater which evolves to sodium bicarbonate, the second one, both containing fluoride anomalies. The third group is represented by calcium bicarbonate groundwater, and in the fourth, magnesium is the distinctive parameter. The statistical and geochemical analyses supported by isotopic measurements indicated that groundwater may have originated from mixtures of deeper aquifers and the fluoride concentrations could be derived from rock/water interactions (e.g., desorption from clay minerals). 相似文献
198.
Ana Rita Ribeiro Carlos Magalhães Afonso Paula M. L. Castro Maria Elizabeth Tiritan 《Environmental Chemistry Letters》2013,11(1):83-90
The accurate quantification of enantiomers is crucial for assessing the biodegradation of chiral pharmaceuticals in the environment. Methods to quantify enantiomers in environmental matrices are scarce. Here, we used an enantioselective method, high-performance liquid chromatography with fluorescence detection (HPLC-FD), to analyze two beta-blockers, metoprolol and atenolol, and the antidepressant fluoxetine in an activated sludge consortium from a wastewater treatment plant. The vancomycin-based chiral stationary phase was used under polar ionic mode to achieve the enantioseparation of target chiral pharmaceuticals in a single chromatographic run. The method was successfully validated over a concentration range of 20–800 ng/mL for each enantiomer of both beta-blockers and of 50–800 ng/mL for fluoxetine enantiomers. The limits of detection were between 5 and 20 ng/mL and the limits of quantification were between 20 and 50 ng/mL, for all enantiomers. The intra- and inter-batch precision was lower than 5.66 and 8.37 %, respectively. Accuracy values were between 103.03 and 117.92 %, and recovery rates were in the range of 88.48–116.62 %. Furthermore, the enantioselective biodegradation of atenolol, metoprolol and fluoxetine was followed during 15 days. The (S)-enantiomeric form of metoprolol was degraded at higher extents, whereas the degradation of atenolol and fluoxetine did not show enantioselectivity under the applied conditions. 相似文献
199.
Miguel A. Ramos Nadine R. Sousa Albina R. Franco Vítor Costa Rui S. Oliveira Paula M. L. Castro 《Environmental science and pollution research international》2013,20(1):582-590
Diflubenzuron (DFB) is an insecticide commonly used to control forest pests. The objectives of this study were to assess the effect of diflubenzuron on the development of Pinus pinaster seedlings and Pisolithus tinctorius under laboratory conditions and to study the possible protective role of this ectomycorrhizal fungus against the effects of diflubenzuron. In vitro experiments revealed that diflubenzuron inhibited fungal growth at all tested concentrations (0.01, 0.1, 1, 10 and 100 mg L?1). Root growth was inhibited at the two highest diflubenzuron concentrations. The activity of the antioxidant defence system of non-inoculated P. pinaster increased at 1 and 10 mg DFB kg?1 substrate, and inoculation increased the threshold to the highest concentration. The protective role of the ectomycorrhizal fungus was seen in the increase of CAT activity. This study revealed that despite causing no mortality, diflubenzuron has the ability to cause sub-lethal damage to P. pinaster. The disproportionate use of this insecticide may lead to higher amounts of its residues in soil and the biosphere, endangering trees, fungi and their symbiosis. 相似文献