全文获取类型
收费全文 | 318篇 |
免费 | 3篇 |
国内免费 | 5篇 |
专业分类
安全科学 | 4篇 |
废物处理 | 32篇 |
环保管理 | 29篇 |
综合类 | 36篇 |
基础理论 | 66篇 |
污染及防治 | 95篇 |
评价与监测 | 44篇 |
社会与环境 | 20篇 |
出版年
2023年 | 4篇 |
2022年 | 20篇 |
2021年 | 16篇 |
2020年 | 6篇 |
2019年 | 6篇 |
2018年 | 17篇 |
2017年 | 15篇 |
2016年 | 20篇 |
2015年 | 18篇 |
2014年 | 21篇 |
2013年 | 31篇 |
2012年 | 18篇 |
2011年 | 28篇 |
2010年 | 18篇 |
2009年 | 14篇 |
2008年 | 15篇 |
2007年 | 17篇 |
2006年 | 7篇 |
2005年 | 9篇 |
2004年 | 3篇 |
2003年 | 3篇 |
2002年 | 4篇 |
2001年 | 2篇 |
2000年 | 2篇 |
1999年 | 1篇 |
1998年 | 1篇 |
1997年 | 2篇 |
1996年 | 2篇 |
1994年 | 1篇 |
1993年 | 2篇 |
1988年 | 1篇 |
1986年 | 1篇 |
1982年 | 1篇 |
排序方式: 共有326条查询结果,搜索用时 15 毫秒
101.
Nogueira L Rodrigues AC Trídico CP Fossa CE de Almeida EA 《Environmental monitoring and assessment》2011,180(1-4):243-255
Considering that diesel oil is one of the most common aquatic contaminants, we compare the oxidative stress between two species of fish with different habitats (Pterygoplichthys anisitsi, benthic and Oreochromis niloticus, nektonic) exposed to diesel oil. Malondialdehyde concentrations (MDA) and the activities of ethoxyresorufin-O-deethylase (EROD), glutathione S-transferase (GST), catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase were all analyzed in the fishes' livers and gills after 2 and 7 days of exposure to different concentrations of diesel (0.1 and 0.5 mL/L). In the tilapia, MDA levels and the activities of EROD and GST activity in the liver, as well as MDA levels and the activities of GST and SOD in the gill had statistically significant differences between the treatments and between the times of exposure. For the catfish, the same occurred in the case of MDA, EROD, and SOD in the liver and in CAT and SOD in the gills. There were significant differences in the enzyme activity and lipid peroxidation between the species. Although the activity of most enzymes seemed to be more expressive and responsive to diesel in O. niloticus, diesel oil also caused significant effects on oxidative stress parameters in P. anisitsi, even though this species is benthic and thus has less access to insoluble fractions of diesel oil. Therefore, both species can be used as sentinel organisms in environmental biomonitoring of diesel contamination. 相似文献
102.
Andrew Kelly Julio Lumbreras Rob Maas Tiziano Pignatelli Francisco Ferreira Anna Engleryd 《Environmental Science & Policy》2010,13(1):28-41
The Gothenburg Protocol set national emission ceilings for transboundary air pollutants in 2010. These ceilings were formulated in 1999 using the Regional Air Pollution Information and Simulation (RAINS) model and national forecast data. The 2010 ceiling deadline is approaching as is a revision process which may lead to the setting of emission ceilings for 2020. This paper considers the original 1999 projections of six countries that were used within the RAINS model to inform the setting of their respective Gothenburg Protocol 2010 emission ceilings. These data are then contrast against recent inventory data and contemporary short-term forecasts out to 2010. These recent forecasts indicate that major downward shifts in the trends of pollutant emissions have been achieved, and whilst compliance challenges remain, there is a clear indication of the potential of such international agreements and their associated legislative and policy driven mechanisms. However, in a process governed by a maxim of achieving international environmental objectives at ‘least-cost’, the recent experience offers some valuable lessons. Specifically, in relation to the accuracy of energy projections and assumptions of other relevant variables in the modelling process. This paper considers these lessons and opens a discussion on the role of more adaptable mechanisms for the ongoing management of international agreements with long-term compliance horizons. 相似文献
103.
Borrego C Monteiro A Ferreira J Miranda AI Costa AM Carvalho AC Lopes M 《Environment international》2008,34(5):613-620
The main objectives of this work focus, firstly, on a review of the current existent methodologies to estimate air quality modelling uncertainty, and, secondly, in the preparation of guidelines for modelling uncertainty estimation, which can be used by local and regional authorities responsible for air quality management. From the application exercise, it was concluded that it is possible to define a subset of statistical parameters able to reproduce the general uncertainties estimation. Concerning the quality indicators defined by EU directives, the results show that the legislated uncertainty estimation measures are ambiguous and inadequate in several aspects, mainly in what concerns the error measures for hourly and daily indicators based on the highest observed concentration. A relative error at the percentile correspondent to the allowed number of exceedances of the limit value was suggested and tested, showing that is a more robust and appropriate parameter for model performance evaluation. 相似文献
104.
Faria Maria Graciela Iecher Avelino Katielle Vieira Philadelpho Biane Oliveira dos Santos Bomfim Rafaela do Valle Juliana Silveira Júnior Affonso Celso Gonçalves Dragunski Douglas Cardoso de Souza Ferreira Ederlan de Souza Carolina Oliveira Ribeiro Camila Duarte Ferreira Colauto Nelson Barros Linde Giani Andrea 《Environmental science and pollution research international》2022,29(58):87519-87526
Environmental Science and Pollution Research - Lentinus crinitus bioaccumulates lithium in mycelia, but bioaccumulation may be affected by pH of the culture medium. Lithium is used in clinical... 相似文献
105.
Sales Victor Ribeiro Azevedo Patricia Zucchi Maria Imaculada Nocelli Roberta Cornélio Ferreira 《Environmental science and pollution research international》2022,29(42):62711-62732
Environmental Science and Pollution Research - Brazil presents the most threatened endemic or rare species among neotropical regions, with the Hymenoptera order, to which bees belong, classified as... 相似文献
106.
da Silva Fabiano Santana Luna Carlos Bruno Barreto Siqueira Danilo Diniz da Silva Barbosa Ferreira Eduardo Araújo Edcleide Maria 《Journal of Polymers and the Environment》2022,30(3):1028-1044
Journal of Polymers and the Environment - This work aimed to investigate the biopolyethylene (BioPE)/wood powder (WP) composites compatibilized with polyethylene-grafted maleic anhydride (PE-g-MA),... 相似文献
107.
Thiago Ferreira Quilice Luciana Oranges Cezarino Marlon Fernandes Rodrigues Alves Lara Bartocci Liboni Adriana Cristina Ferreira Caldana 《环境质量管理》2018,27(3):19-30
This paper aims to identify the positive and negative aspects in the sustainability reporting framework proposed by the Global Reporting Initiative (GRI). The research was conducted through content analysis of 27 companies’ responses to three questions: “Why does the company where you work prepare a sustainability report?” “What are the positive aspects you identify in the framework for GRI reporting?” and “What are the negative aspects you identify in the framework for GRI reporting?” The questionnaire was sent to all Brazilian companies that published sustainability reports using the GRI guidelines between 2011 and 2013 related to the base year 2010. We found that respondents viewed the GRI guidelines and the reports they created as management tools for sustainability and that they assist in benchmarking sustainability performance and legitimizing the sustainability actions of the organization. Furthermore, some respondents indicated that the reports themselves are marketing tools. On the other hand, the respondents reported difficulties in understanding the proposed GRI guidelines. They considered the guidelines complex, ambiguous, and too flexible, which undermined both the standardization of the reports and the ability to compare reports. Based on these comments, it is recommended that the GRI develop a simpler and less flexible reporting methodology. 相似文献
108.
Celso M. Ferreira Francisco Olivera Jennifer L. Irish 《Journal of the American Water Resources Association》2014,50(1):219-233
Arc StormSurge is a data model that integrates geographic information systems and the hurricane wave and surge model SWAN+ADCIRC, which is the coupling of the Simulating WAves Nearshore (SWAN) wave model and the Advanced Circulation (ADCIRC) hydrodynamic model. The Arc StormSurge data model is a geodatabase, which is a relational database that can contain georeferenced information. It includes feature classes in feature datasets and tables, all related among them through relationship classes, and raster catalogs and grids. In addition to the data model schema, Arc StormSurge includes a number of pre‐ and post‐processing tools that help integrate spatial data and numerical modeling. As an illustration, Arc StormSurge was used to support the modeling of Hurricane Bret, which made landfall in the Corpus Christi area in Texas in 1999. By using Arc StormSurge, it was possible to take advantage of already available geo‐referenced information (e.g., base maps, land cover datasets, and monitoring station locations) for the model setup, and for identifying spatial patterns in the model results by presenting them in map format. 相似文献
109.
Previous studies in the Douro River estuary, based on occasional sampling, showed the presence of several estrogenic disrupting chemicals (EDCs). In sequence, we hypothesized that such type of pollution was more likely an enduring issue than an occasional phenomenon, and that it may even affect recreational beaches in each side of the estuarine mouth. Thus to conclude about the continuous influx of EDCs, water samples were taken twice a day, once per a week, from March to May of 2009, at four sites within the estuary and at two sites in the coastline. After solid-phase extraction, the extracts were prepared for GC-MS analysis of 11 reference EDCs. These embraced natural and pharmaceutical estrogens (17β-estradiol, estrone and 17α-ethynylestradiol) and xenoestrogenic industrial pollutants (4-octylphenol, 4-nonylphenol, and their mono and diethoxylates and bisphenol A). Data showed the ubiquitous presence of potentially hazardous amounts of natural estrogens (particularly of estradiol, ca 5.5?ng?L?1) and persistent organic pollutants such as nonylphenol mono (up to 550?ng?L?1) and diethoxylate (up to 2000?ng?L?1). It was concluded that the targeted area is continuously polluted by the assayed EDCs, and as a consequence, conditions exist for endocrine disturbance in the biota by chronic exposure to EDCs. 相似文献
110.
Patinha C Reis AP Dias C Cachada A Adão R Martins H Ferreira da Silva E Sousa AJ 《Environmental geochemistry and health》2012,34(2):213-227
Previous environmental biomonitoring studies indicated higher environmental lead (Pb) pollution levels at the districts of
Aveiro and Leiria (Portugal). In evaluating the risk for human health, which is associated with contaminated soils after oral
uptake, total soil concentrations have generally been held against criteria established from toxicological studies based upon
the assumption that the uptake of the contaminant is similar in the toxicological studies and from the soils assessed. This
assumption is not always valid, as most toxicological studies are carried out with soluble forms of the contaminants, whereas
many soil contaminants are or become embedded in the soil matrix and thus exhibit limited availability. This study intends
to estimate the soluble fraction of Pb in the soils from central Portugal, and to assess the bioaccessibility of Pb and, hence,
infer exposure and risk for human health. Yet, as the physical–chemical properties of the soil exert some control over the
solubility of Pb in the surface environment, the relation between such soil properties and the estimated soluble and/or bioaccessible
fractions of Pb is also investigated. Other objective, with a more practical nature, was to give some contribution to find
a suitable in vitro mimetic of the gastrointestinal tract environment. The results indicate relatively low total metal concentrations
in the soils, even if differences between regions were observed. The Aveiro district has the higher total Pb concentration
and the metal is in more soluble forms, that is, geoavailable. Soils with higher concentrations of soluble Pb show higher
estimates of bioaccessible Pb. Soil pH seems to influence human bioaccessibility of Pb. 相似文献