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281.
Marcia Freire Pinto José Silva Mourão Rômulo Romeu Nóbrega Alves 《Environment, Development and Sustainability》2017,19(2):679-692
Fish are a valuable source of essential micronutrients and animal protein consumed worldwide, especially in coastal regions. However, changes have been observed in eating habits of many fishing communities in Brazil, although this is seldom investigated in the northeast region of the country. Therefore, the aim of this study was to characterize food consumption of meat, especially fish meat, in two fishing communities of Brazilian Northeast. During 2013, information was collected through interviews and food frequency questionnaires regarding eating habits of artisanal fishermen and their families. It was found that fish was the main source of animal protein, although there are differences in consumption according to age and gender of respondents due to dietary restrictions. A difference in the frequency of fish consumption among the communities studied was also found, and there was no correlation between fishermen’s fish preference and fish with higher commercial value. The information obtained is important to understand eating habits of fishing communities, contributing to the development and implementation of public health policies with a focus on food and nutrition security. 相似文献
282.
Gredilla Ainara Fdez-Ortiz de Vallejuelo Silvia Gomez-Nubla Leticia Carrero Jose Antonio de Leão Felipe B. Madariaga Juan Manuel Silva Luis F. O. 《Environmental science and pollution research international》2017,24(31):24333-24345
Environmental Science and Pollution Research - In city playgrounds, there is a potential risk of harming children’s health by contamination coming from anthropogenic activities. With the aim... 相似文献
283.
Rui B. Gomes Regina Nogueira José M. Oliveira João Peixoto António G. Brito 《Environmental science and pollution research international》2009,16(6):671-678
Background, aim, and scope
Polycyclic aromatic hydrocarbons (PAHs) are often found in oily wastewaters. Their presence is usually the result of human activities and has a negative effect on the environment. One important step in addressing this problem is to evaluate the effectiveness of PAH removal by biological processes since these are the most cost-effective treatments known today. Many techniques are presently available for PAH determination in wastewaters. Solid phase microextracion (SPME) is known to be one of the most effective techniques for this purpose. When analyzing complex matrices with substances such as natural organic matter (NOM) and non-aqueous phase liquids (NAPL), it is important to differentiate the free dissolved PAH from matrix-bonded PAH. PAHs associated with the bonded fraction are less susceptible to biological treatment. The present study concerns the development of a simple and suitable methodology for the determination of the freely dissolved and the total fraction of PAHs present in oily wastewaters. The methodology was then applied to an oily wastewater from a fuel station retention basin. 相似文献284.
Comparative studies of fungal degradation of single or mixed bioaccessible reactive azo dyes 总被引:12,自引:0,他引:12
A screening using several fungi (Phanerochaete chrysosporium, Pleurotus ostreatus, Trametes versicolor and Aureobasidium pullulans) was performed on the degradation of syringol derivatives of azo dyes possessing either carboxylic or sulphonic groups, under optimized conditions previously established by us. T. versicolor showed the best biodegradation performance and its potential was confirmed by the degradation of differently substituted fungal bioaccessible dyes. Enzymatic assays (lignin peroxidase, manganese peroxidase, laccase, proteases and glyoxal oxidase) and GC-MS analysis were performed upon the assay obtained using the most degraded dye. The identification of hydroxylated metabolites allowed us to propose a possible metabolic pathway. Biodegradation assays using mixtures of these bioaccessible dyes were performed to evaluate the possibility of a fungal wastewater treatment for textile industries. 相似文献
285.
Jordão CP Pereira MG Bellato CR Pereira JL Matos AT 《Environmental monitoring and assessment》2002,79(1):75-100
The State of Minas Gerais represents one of Brazil's most outstanding mining resources. The contamination of river waterfrom kaolin processing activities may be harmful to people inthe way of slow but chronic poisoning. On the other hand, the discharge of untreated or inadequately treated domestic sewage into aquatic environments can also cause deleterious effects to the health. However, no reliable figures are available for pollutant occurrences in river water. This draws attention to thevery precarious situation that exists with respect to pollutionby organic and inorganic toxic wastes, especially with respect to humans and fauna in all its expressions. Thus, with the purpose of establishing a preliminary report to trace out industrialisation outcomes, samples of river water, vegetation and fish were collected and analysed to detect pollutant inputs.The concentration of metals was determined in suspended particle,vegetation and fish, while those of nitrite, nitrate, phosphateand chloride were determined in river water samples. The concentration of dissolved oxygen (DO) was measured in river water at the time of collection. Chemical oxygen demand (COD) and biochemical oxygen demand (BOD) were also determined. Metalinputs in the samples analysed appeared to be related to effluentdischarges into the rivers. The suspended particles showed highconcentrations (in mg kg-1) of zinc (62 600) and aluminium(559 000), while vegetation samples collected near rivers wereheavily contaminated with iron (7680). The fishes examined werecontaminated with chromium (1.5 mg kg-1). In general, the concentrations of nitrite, nitrate, chloride, phosphate and BOD in river water were lower than the maximum values established bythe Brazilian Environmental Standards. 相似文献
286.
Jordão CP Nascentes CC Cecon PR Fontes RL Pereira JL 《Environmental monitoring and assessment》2006,112(1-3):309-326
A study was performed to evaluate the pH and the availability of Zn, Cu, Mn, Pb, and Ni in soil amended with increasing doses
of composted solid wastes, collected in Rio de Janeiro, Rio de Janeiro State and in Coimbra, Minas Gerais State, Brazil. The
influence of the time elapsed between compost application to the soil and the sampling of the plant growth substrate (soil
+ compost) for pH and metal availability analyses was also examined. The availability of heavy metals in the soil, in the
compost and in the substrate was evaluated using DTPA solution for metal extraction. The increase of the compost doses added
to the soil resulted in the increase of the pH in the substrate. The addition of the compost from the bigger city, Rio de
Janeiro, resulted in higher increase in soil pH and available Zn, Cu, Pb, and Ni levels as compared to the addition of the
compost from the smaller city, Coimbra. Increasing the time elapsed between the compost application to the soil and the sampling
of the mixture resulted in higher available Zn, Cu, Mn, and Pb levels. The addition of the compost from Rio de Janeiro resulted
in substrate metal concentrations in the order Zn > Pb > Ni > Cu > Mn and for the Coimbra compost the metal concentrations
in the substrate was Zn > Pb > Cu > Ni > Mn. The higher values of pH and available metals obtained for the bigger city were
attributed to the greatest metal contamination of its compost. 相似文献
287.
More of the Same: High Functional Redundancy in Stream Fish Assemblages from Tropical Agroecosystems 总被引:1,自引:0,他引:1
288.
Samuel Niza Daniela Ferreira Joana Mourão Patrícia Bento d’Almeida Teresa Marat-Mendes 《Regional Environmental Change》2016,16(6):1725-1737
The consumption and production of food products in the municipality of Lisbon in the 1890–1900 decade is assessed with the support of historical cartography and statistical resources. For the first time, food production in a municipality in the turn to the twentieth century is accounted and simultaneously subject of a visual analysis of the land used for agriculture and of the water infrastructures that supported such uses. Agriculture occupied at least 40 % of the territory of the city, while the built environment occupied no more than 16 % of the territory. However, local production of food was far from supplying most of the citizens’ needs, and substantial food imports were needed. In this context, the municipality behaved like a heterotrophic system, highly dependent on the external supply of resources. Moreover, comparing to other European cities at the time Lisbon was facing in the end of the nineteenth century a late and slow transition from an agrarian social metabolism to an industrial one, suggesting that Lisbon was still relatively high-solar-powered as compared to other European cities at the time that were already highly fossil-fuel-powered. 相似文献
289.
Filipe R. Ceia Vitor H. Paiva Stefan Garthe João C. Marques Jaime A. Ramos 《Marine Biology》2014,161(8):1861-1872
This study tested for fluctuations on short-term consistency (within about 1 month) in the isotopic niche of a pelagic seabird species. Short-term consistency in the isotopic niche was assessed using a wide-ranging apex predator, the Cory’s shearwaters Calonectris diomedea, along a 3-year study (2010–2012), during both the pre-laying and chick-rearing periods, with markedly inter- and intra-annual differences in the foraging spatial distribution at sea and isotopic niche width. We used individual movement data and stable isotope data, analysed using recent metrics based in a Bayesian framework, of 69 adults breeding on a small neritic island in the North Atlantic (39°24′N, 009°30′W). As expected, our results confirm that isotopic niche expansion could arise via increased variation in spatial distribution at sea among individuals. Results suggest fluctuations on short-term consistency in the isotopic niche of Cory’s shearwaters related to their different foraging patterns among periods and, ultimately, to presumably temporal changes in the availability and predictability of food resources. Short-term consistency in the isotopic niche was higher and persistent during periods when the population showed an intermediate isotopic niche width and absent when isotopic niche was either smaller or larger during the study period. These results suggest that consistency in the isotopic niche is an important characteristic of this population during the breeding period that may fluctuate depending on resources availability and should be important to understand the dynamics of foraging ecology of pelagic seabirds in general. 相似文献