全文获取类型
收费全文 | 104篇 |
免费 | 0篇 |
国内免费 | 3篇 |
专业分类
安全科学 | 4篇 |
废物处理 | 7篇 |
环保管理 | 2篇 |
综合类 | 16篇 |
基础理论 | 18篇 |
污染及防治 | 36篇 |
评价与监测 | 17篇 |
社会与环境 | 7篇 |
出版年
2023年 | 1篇 |
2022年 | 9篇 |
2021年 | 7篇 |
2020年 | 4篇 |
2019年 | 3篇 |
2018年 | 4篇 |
2017年 | 8篇 |
2016年 | 12篇 |
2015年 | 3篇 |
2014年 | 9篇 |
2013年 | 7篇 |
2012年 | 10篇 |
2011年 | 6篇 |
2010年 | 3篇 |
2009年 | 6篇 |
2008年 | 2篇 |
2007年 | 1篇 |
2006年 | 3篇 |
2005年 | 4篇 |
2004年 | 1篇 |
2002年 | 2篇 |
1992年 | 1篇 |
1978年 | 1篇 |
排序方式: 共有107条查询结果,搜索用时 31 毫秒
61.
Matheus Ribeiro da Silva Assis Carmen Baur Vieira Julia Monassa Fioretti Mônica Simões Rocha Pedro Ivo Neves de Almeida Marize Pereira Miagostovich Tulio Machado Fumian 《Food and environmental virology》2016,8(4):305-309
Gemycircularvirus (GemyCV) is a group of viruses which has been recently proposed as a new viral genus detected in fecal and environmental samples around the world. GemyCVs have been detected in human blood, brain tissue, cerebrospinal fluid, and stool sample. In the present study, we demonstrate for the first time, through molecular detection and characterization, the presence of GemyCVs in environmental samples from Brazil. Our results show a percentage of positivity ranging from 69 (25/36) to 97 % (35/36) in river water samples collected in Manaus, Amazon region, and wastewater from a wastewater treatment plant located in Rio de Janeiro, respectively, revealing GemyCVs as an important environmental contaminant. 相似文献
62.
Bustamante Mercedes M. C. Silva José Salomão Scariot Aldicir Sampaio Alexandre Bonesso Vieira Daniel Luis Mascia Garcia Edenise Sano Edson Fernandes Geraldo Wilson Durigan Giselda Roitman Iris Figueiredo Isabel Rodrigues Ricardo Ribeiro Pillar Valério D. de Oliveira Alba Orli Malhado Ana Claudia Alencar Ane Vendramini Annelise Padovezi Aurélio Carrascosa Helena Freitas Joberto Siqueira José Alves Shimbo Julia Generoso Leonel Graça Tabarelli Marcelo Biderman Rachel de Paiva Salomão Rafael Valle Raul Junior Brienza Nobre Carlos 《Mitigation and Adaptation Strategies for Global Change》2020,25(4):735-736
Mitigation and Adaptation Strategies for Global Change - The original version of the article unfortunately contained an error. 相似文献
63.
Geoffroy R. P. Malpass Douglas W. Miwa Ricardo L. Santos Eny M. Vieira Artur J. Motheo 《Environmental Chemistry Letters》2012,10(2):177-182
This report shows an unexpected toxicity decrease during atrazine photoelectrodegradation in the presence of NaCl. Atrazine
is a pesticide classified as endocrine disruptor occurring in industrial effluents and agricultural wastewaters. We therefore
studied the effects of the degradation method, electrochemical and electrochemical photo-assisted, and of the supporting electrolyte,
NaCl and Na2SO4, on the residual toxicity of treated atrazine solutions. We also studied the toxicity of treated atrazine solutions using
Artemia nauplii. Results show that at initial concentration of 20 mg L−1, atrazine was completely removed in up to 30 min using 10 mA cm−2 electrolysis in NaCl medium, regardless of the electrochemical method used. The total organic carbon removal by the photo-assisted
method was 82% with NaCl and 95% with Na2SO4. The solution toxicity increased during sole electrochemical treatment in NaCl, as expected. However, the toxicity unexpectedly
decreased using the photo-assisted method. This finding is a major discovery because electrochemical treatment with NaCl usually
leads to the formation of toxic chlorine-containing organic degradation by-products. 相似文献
64.
Aline S. Turque Alexander M. Cardoso Cynthia B. Silveira Ricardo P. Vieira Flávia A. D. Freitas Rodolpho M. Albano Alessandra M. Gonzalez Rodolfo Paranhos Guilherme Muricy Orlando B. Martins 《Marine Biology》2008,155(2):135-146
In this study we performed a survey of the bacterial communities associated with the Western Atlantic demosponges Hymeniacidon heliophila and Polymastia janeirensis, based on 16S rRNA sequencing and transmission electron microscopy (TEM). We compared diversity and composition of the sponge-associated
bacteria to those of environmental bacteria, represented by free-living bacterioplankton and by bacteria attached to organic
particulate matter in superficial sediments. Partial bacterial 16S rRNA sequences from seawater, sediment, and sponges were
retrieved by PCR, cloning, and sequencing. Sequences were subjected to rarefaction analyses, phylogenetic tree construction,
and LIBSHUFF quantitative statistics to verify coverage and similarity between libraries. Community structure of the free-living
bacterioplankton was phylogenetically different from that of the sponge-associated bacterial assemblages. On the other hand,
some sediment-attached bacteria were also found in the sponge bacterial community, indicating that sponges may incorporate
bacteria together with sediment particles. Rare and few prokaryotic morphotypes were found in TEM analyses of sponge mesohyl
matrix of both species. Molecular data indicate that bacterial richness and diversity decreases from bacterioplankton, to
particulate organic sediment, and to H. heliophila and P. janeirensis. Sponges from Rio de Janeiro harbor a pool of novel and exclusive sponge-associated bacterial taxa. Sponge-associated bacterial
communities are composed of both taxons shared by many sponge groups and by species-specific bacteria. 相似文献
65.
Danilo Urzedo Simone Pedrini Daniel L. M. Vieira Alexandre B. Sampaio Bruna D. F. Souza Eduardo Malta Campos-Filho Fatima C. M. Pia-Rodrigues Isabel B. Schmidt Rodrigo G. P. Junqueira Kingsley Dixon 《Ambio》2022,51(3):557
The UN Decade of Ecosystem Restoration is poised to trigger the recovery of ecosystem services and transform structural injustices across the world in a way unparalleled in human history. The inclusion of diverse Indigenous and local communities to co-create robust native seed supply systems is the backbone to achieve the goals for the Decade. Here we show how community-based organizations have co-developed native seed supply strategies for landscape restoration from the bottom-up. We draw on the interconnections over two decades of seed networks in Brazil and the emerging Indigenous participation in native seed production in Australia. From an environmental justice perspective, we provide a participatory seed supply approach for local engagement, noting local geographical, social and cultural contexts. Meeting large-scale restoration goals requires the connection between local seed production and collaborative platforms to negotiate roles, rights and responsibilities between stakeholders. An enduring native seed supply must include a diversity of voices and autonomy of community groups that builds equitable participation in social, economic, and environmental benefits. 相似文献
66.
Clístenes Williams Araújo do Nascimento Luiz Henrique Vieira Lima Franklone Lima da Silva Caroline Miranda Biondi Milton César Costa Campos 《Environmental monitoring and assessment》2018,190(10):606
The soils of the Brazilian Amazon exhibit large geochemical diversity reflecting the different soil formation processes in an area covering 49% of the Brazilian territory. Soil contamination by heavy metals is one of the threats to the sustainability of this Biome but establishing quality reference values (QRVs) for the region is a challenging owing to the immense territorial area of the Amazon. This study aimed to determine the natural background of heavy metals in soils from the southwestern Brazilian Amazon in order to propose QRVs for Ba, Cd, Cr, Cu, Fe, Mn, Ni, Pb, Sb, and Zn for alluvial sedimentary soils. One hundred and twenty-eight soil samples were collected at a depth of 0.0–0.2 m in sites with minimal anthropogenic interference. Soil sample digestion was based on the EPA 3051A method and metal concentrations were determined by ICP-OES. QRVs calculated for the southwestern Brazilian Amazon are among the lowest recorded in Brazil (mg kg?1): Ba (16.5), Cd (0.1), Cr (6.9), Cu (2.8), Fe (15.4), Mn (13.4), Ni (1.7), Pb (4.4), Sb (0.9), and Zn (5.7). The low metal concentration is likely a result of the sedimentary origin of the soils. The results of this study can serve as a basis for defining public policies to investigate the environmental impacts resulting from changes in land use in areas of the Brazilian Amazon. 相似文献
67.
Ulysses Paulino de Albuquerque Luciana Gomes de Sousa Nascimento Fabio José Vieira Cybelle Maria de Albuquerque Duarte Almeida Marcelo Alves Ramos Ana Carolina Oliveira da Silva 《Journal of Agricultural and Environmental Ethics》2012,25(1):19-32
The scientific community has debated the importance of “return” activities after ethnobiological studies. This issue has provoked
debate because it touches on the ethics of research and the relationships with the people involved in these studies. This
case study aimed to investigate community perception of an ethnobotany research project that was carried out in the semi-arid
region of northeastern Brazil. Furthermore, we reported how the residents of this rural community felt about participating
in the activities of “return” that arose from the projects. Our findings demonstrate that “return” activities should be planned
from the design phase of the research until its closure as a lifelong process that allows the communities involved to gradually
take ownership of the information and actions that are being generated. Similarly, we argue that such activities must be negotiated
with the people of the community so that they have decision-making power and autonomy to decide what is most relevant to their
lives. 相似文献
68.
Sárria MP Santos MM Reis-Henriques MA Vieira NM Monteiro NM 《Environment international》2011,37(2):418-424
Estuarine shallow areas and coastal lagoons are known to receive and concentrate multiple inputs, either from land, rivers or coastal areas, being intensively impacted by chemical contamination, namely endocrine disrupting chemicals (EDCs). Despite the ubiquitous coexistence of several classes of EDCs in most of these aquatic ecosystems, there is still limited information regarding their combined effects. Furthermore, given the immediate implications for population dynamics, the available laboratory studies almost invariably focus on very specific life history stages, such as embryonic development or reproduction, thus creating a gap on our knowledge of what happens in between. During this 'intermediate phase', the newborn larvae and juveniles face numerous challenges whose outcome may impair reproduction or even survival. The black-striped pipefish, Syngnathus abaster, member of the Syngnathidae family (comprising pipefish, seahorses and seadragons), usually breeds in coastal areas such as estuaries, where its newborns are immediately exposed to EDCs. Given the ongoing decline of pipefish populations, together with the observed shrinkage and fragmentation of seagrass meadows, known to be impacted by EDCs, a first reasonable question to address is if pipefish newborns respond to environmentally relevant concentrations of ubiquitous EDCs, either single or in combination. Hence, a seven days exposure experiment to the estrogenic chemical ethinylestradiol (EE(2)) and the androgenic chemical tributyltin (TBT), single and in binary mixtures, was conducted. Selected behavioural (e.g. predator avoidance) and developmental variables (e.g. growth) were monitored in pipefish juveniles after EDCs insult. The obtained results indicate that EE(2), TBT, or their combined exposure, do impact pipefish early life. However, the pattern of results emerging from the measured variables clearly indicates that mixtures significantly modulate newborn responses in distinct ways when compared to individual chemical's exposure. These findings further demonstrate the importance of addressing the issue of chemical mixtures of pollutants acting through dissimilar mode of action. Independently of all the observed response variations, an ultimate conclusion seems certain: EE(2) and TBT, single or in combination, induce disruption patterns able to imbalance pipefish survival. Since these (as well as other) contaminants are present in estuarine areas, profound implications in population structure could be expected, ranging from a decrease in recruitment to a disruption of sexual selection. Inexorably, these stressors simultaneously operate in already declining populations. 相似文献
69.
70.
Judite Vieira André Fonseca Vítor J. P. Vilar Rui A. R. Boaventura Cidália M. S. Botelho 《Environmental monitoring and assessment》2012,184(12):7125-7140
In the past 30?years, the Lis river basin has been subjected to constant ecological disasters mainly due to piggery untreated wastewater discharges. The aim of this study was to evaluate the effect of existing domestic, agricultural, and industrial activities on the water quality, and to propose a watershed plan to protect and manage surface water resources within the Lis river basin. For this purpose, 16 monitoring stations have been strategically selected along the Lis river stretch and its main tributaries to evaluate the water quality in six different sampling periods (2003–2006). All samples were characterized in terms of organic material, nutrients, chlorophyll, and pathogenic bacteria. Generally, the Lis river presents poor water quality, according to environmental quality standards for surface water, principally in terms of dissolved oxygen, biochemical oxygen demand, total nitrogen, and fecal coliform, which can be associated mainly with the contamination source from pig-breeding farms. 相似文献