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排序方式: 共有247条查询结果,搜索用时 62 毫秒
31.
Baraj B Niencheski F Fillmann G De Martinez Gaspar Martins C 《Environmental monitoring and assessment》2011,179(1-4):155-162
Factorial design plan was experimented in Perna perna in order to find out the contribution of day exposure, Cd and Cu concentrations in water, and their interactions on metallothioneins (MT), Cd, and Cu (the dependent measured variables) in the gills. The picture obtained is more adequate than by studying the factor effect separately. Compared with the control group, the MT concentration after 22?days exposure period in the mixture of 100?μg/mL Cu and Cd is increased almost two times, showing that P. perna might be used as a biomonitor. Cd showed stronger effect than Cu on MT inducing. 相似文献
32.
Schmitt Odair J. Andriolo Jerônimo L. Silva Isley C. B. Tiecher Tadeu L. Chassot Tatiane Tarouco Camila Peligrinotti Lourenzi Cledimar Rogério Nicoloso Fernando Teixeira Marchezan Carina Casagrande Cleiton Renato Drescher Gerson Laerson Kreutz Márcio André Brunetto Gustavo 《Environmental science and pollution research international》2022,29(29):44186-44198
Environmental Science and Pollution Research - Copper (Cu) can be toxic to vegetables when it is absorbed and accumulated at large concentrations, a fact that increases the risk of excessive... 相似文献
33.
Collection and recycling of electronic scrap: a worldwide overview and comparison with the Brazilian situation 总被引:1,自引:0,他引:1
Recycling and the related issue of sustainable development are increasing in importance around the world. In Brazil, the new National Policy on Solid Wastes has prompted discussion on the future of electronic waste (e-waste). Over the last 10 years, different e-waste collection systems and recycling processes have been applied globally. This paper presents the systems used in different countries and compares the world situation to the current Brazilian reality. To establish a recycling process, it is necessary to organize efficient collection management. The main difficulty associated with the implementation of e-waste recycling processes in Brazil is the collection system, as its efficiency depends not only on the education and cooperation of the people but also on cooperation among industrial waste generators, distributors and the government. Over half a million waste pickers have been reported in Brazil and they are responsible for the success of metal scrap collection in the country. The country also has close to 2400 companies and cooperatives involved in recycling and scrap trading. On the other hand, the collection and recycling of e-waste is still incipient because e-wastes are not seen as valuable in the informal sector. The Brazilian challenge is therefore to organize a system of e-waste management including the informal sector without neglecting environmentally sound management principles. 相似文献
34.
Natalie T Boelman Gregory P Asner Patrick J Hart Roberta E Martin 《Ecological applications》2007,17(8):2137-2144
We used airborne imaging spectroscopy and scanning light detection and ranging (LiDAR), along with bioacoustic recordings, to determine how a plant species invasion affects avian abundance and community composition across a range of Hawaiian submontane ecosystems. Total avian abundance and the ratio of native to exotic avifauna were highest in habitats with the highest canopy cover and height. Comparing biophysically equivalent sites, stands dominated by native Metrosideros polymorpha trees hosted larger native avian communities than did mixed stands of Metrosideros and the invasive tree Morella faya. A multi-trophic analysis strongly suggests that native avifauna provide biotic resistance against the invasion of Morella trees and exotic birds, thus slowing invasion "meltdowns" that disrupt the functioning of native Hawaiian ecosystems. 相似文献
35.
Senna Guilherme Nohra Serra Eduardo Gonçalves 《Environment, Development and Sustainability》2021,23(11):16325-16342
Environment, Development and Sustainability - This paper estimates the genuine progress indicator (GPI) for the state of Rio de Janeiro (RJ), Brazil, from 2002 to 2016 as an alternative indicator... 相似文献
36.
Scaratti Gidiane De Noni Júnior Agenor José Humberto Jorge de Fatima Peralta Muniz Moreira Regina 《Environmental science and pollution research international》2020,27(18):22144-22154
Environmental Science and Pollution Research - 1,4-Dioxane is a synthetic cyclic ether traditionally used as a chlorinated solvent stabilizer. It is a small molecule and recalcitrant compound that... 相似文献
37.
Maysa Venturoso Gongora Buckeridge Serra Paula Rezende Camargo José Eduardo Zaia Maria Georgina Marques Tonello 《International journal of occupational safety and ergonomics》2018,24(1):62-67
Background. The effect of physical exercise in the workplace (PEW) on health promotion of workers is contradictory. Objective. To evaluate the effects of the PEW in musculoskeletal disorders (MSDs), perception of stress and quality of life in workers. Methods. The participants were divided into two groups: control group (n?=?46) including non-participant workers of the PEW program, and PEW group (n?=?50) including workers who regularly participate in the exercise program. All workers answered the Nordic general questionnaire, the perceived stress scale and the quality-of-life questionnaire. Results. The PEW group reported a lower prevalence of MSDs for the trunk in the last 7 days and 12 months (p?=?0.021 and p?=?0.001, respectively), and for the upper limbs in the last 12 months (p?=?0.001) compared with the control group. The results for the perception of stress and quality of life showed no significant differences between the groups. Conclusion. PEW is a potential method to reduce MSDs in workers, but it was not efficient in reducing stress levels or improving the quality of life of the workers. 相似文献
38.
Barbara Marchetti Francesco Corvaro Giancarlo Giacchetta Fabio Polonara Roberta Cocci Grifoni Mariella Leporini 《International Journal of Sustainable Engineering》2018,11(3):173-185
On the basis of the method for managing the end of life of CdTe photovoltaic panels previously proposed by the authors, a new method for the recycling of all types of thin-film panels (CdTe, a-Si and CIS/CIGS) has been developed and optimised under a research project founded by Enel Foundation and CRUI Foundation. The DGP process has been developed through a feasibility study carried out from three points of view: technical, environmental and economic. The process is composed by two sub-processes matched to each other, one suitable for CdTe panels (named DGPa) and the other one for a-Si and CIS/CIGS panels (DGPb). The Double Green Panel process is based mainly on mechanical treatments with a minimum use of chemicals and it is characterised by a greater level of automation and a high flexibility in production capacity. The potential environmental impacts of various configurations of the DGP process have been extensively analysed with LCA tool in order to develop an environmentally friendly process. The economic feasibility has been assessed through the Discounted Cash Flow Analysis (DCFA) method. The revenues associated to the recovery of valuable and common materials and the recycling costs have been taken into account. 相似文献
39.
Luca Salvati Alberto Mancini Sofia Bajocco Roberta Gemmiti Margherita Carlucci 《Regional Environmental Change》2011,11(4):767-777
In recent years, the surface area affected by land degradation (LD) has significantly increased in southern European regions
where the socioeconomic development has been proposed as a basic factor underlying the degree of vulnerability to LD. This
paper investigates the correlation between several socioeconomic indicators and the level of vulnerability to LD in Italy,
expressed as changes (1990–2000) in a composite index of land vulnerability (ΔLVI). The analysis was carried out over 784
local districts. The impact of per capita value added, agricultural intensity, industrial and tourism concentration, and urban
growth was separately tested on ΔLVI. Results indicate that a lower district value added, crop intensification, irrigation,
and the level of land vulnerability to degradation are strongly associated with the increasing level of land vulnerability
over time, highlighting the role of the socioeconomic development as a main process underlying LD. In this framework, spatially
equitable sustainable development may represent the effective strategy to mitigate the detrimental effects of economic growth
and regional disparities on Mediterranean LD. 相似文献
40.
Giannandrea F Gandini L Paoli D Turci R Figà-Talamanca I 《Journal of environmental science and health. Part. B》2011,46(8):780-787
The incidence of testicular cancer (TC) has been increasing worldwide during the last decades. The reasons of the increase remains unknown, but recent findings suggest that organochlorine pesticides (OPs) could influence the development of TC. A hospital-based case-control study of 50 cases and 48 controls was conducted to determine whether environmental exposure to OPs is associated with the risk of TC, and by measuring serum concentrations of OPs, including p,p'-dichlorodiphenyldichloroethylene (p,p'-DDE) isomer and hexachlorobenzene (HCB) in participants. A significant association was observed between TC and household insecticide use (odds ratio [OR] = 3.01, 95 % CI: 1.11-8.14; OR(adjusted) = 3.23, 95 % CI: 1.15-9.11). Crude and adjusted ORs for TC were also significantly associated with higher serum concentrations of total OPs (OR = 3.15, 95 % CI: 1.00-9.91; OR(adjusted) = 3.34, 95 % CI: 1.09-10.17) in cases compared with controls. These findings give additional support to the results of previous research that suggest that some environmental exposures to OPs may be implicated in the pathogenesis of TC. 相似文献