全文获取类型
收费全文 | 401篇 |
免费 | 3篇 |
国内免费 | 4篇 |
专业分类
安全科学 | 5篇 |
废物处理 | 28篇 |
环保管理 | 31篇 |
综合类 | 37篇 |
基础理论 | 43篇 |
污染及防治 | 165篇 |
评价与监测 | 65篇 |
社会与环境 | 31篇 |
灾害及防治 | 3篇 |
出版年
2023年 | 3篇 |
2022年 | 26篇 |
2021年 | 42篇 |
2020年 | 11篇 |
2019年 | 11篇 |
2018年 | 18篇 |
2017年 | 22篇 |
2016年 | 30篇 |
2015年 | 11篇 |
2014年 | 26篇 |
2013年 | 37篇 |
2012年 | 22篇 |
2011年 | 30篇 |
2010年 | 15篇 |
2009年 | 14篇 |
2008年 | 14篇 |
2007年 | 13篇 |
2006年 | 14篇 |
2005年 | 10篇 |
2004年 | 5篇 |
2003年 | 8篇 |
2002年 | 8篇 |
2001年 | 3篇 |
2000年 | 4篇 |
1998年 | 1篇 |
1996年 | 1篇 |
1995年 | 1篇 |
1994年 | 2篇 |
1993年 | 1篇 |
1990年 | 1篇 |
1983年 | 2篇 |
1981年 | 1篇 |
1975年 | 1篇 |
排序方式: 共有408条查询结果,搜索用时 15 毫秒
161.
M. Oliveira A.L. Rodrigues D. Ribeiro A.G. Brito R. Nogueira A.V. Machado 《Chemistry and Ecology》2014,30(5):428-439
Eutrophication is one of the main challenges regarding the ecological quality of surface waters, phosphorus bioavailability being its main driver. In this context, a novel hybrid polymer nanocomposite (HPN-Pr) biofilm reactor aimed at integrated chemical phosphorus adsorption and biological removal was conceived. The assays pointed to removal of 1.2 mg P/g of reactive phosphorus and 1.01 mg P/g of total phosphorus under steady-state conditions. A mathematical adsorption–biological model was applied to predict reactor performance, which indicated that biological activity has a positive effect on reactor performance, increasing the amount of reactive phosphorus removed. 相似文献
162.
Ana P. L. Batista Hudson Wallace Pereira Carvalho Gustavo H. P. Luz Paulo F. Q. Martins Maraísa Gonçalves Luiz C. A. Oliveira 《Environmental Chemistry Letters》2010,8(1):63-67
A photocatalyst based on CuO/SiO2 was prepared, and evaluated for the degradation of methylene blue in aqueous medium. The photocatalyst was obtained by calcination
method of copper salt, in the presence of silica. The characterization by XRD, FTIR, and TPR techniques confirmed the formation
of CuO as active phase. SEM studies showed CuO deposited on the surface of SiO2. By ESI-MS, it was demonstrated that the degradation of methylene blue occurs through successive hydroxylations. Photodegradation
assays showed that CuO/SiO2 was efficient for degradation, and that the material worked better in the presence of UV light. 相似文献
163.
Micheli Dassi Naiéli S. Souto Ana C. M. Braga Mayara L. Freitas Clarissa Vasconcelos Mauro S. Oliveira 《Journal of environmental science and health. Part. B》2013,48(12):840-845
AbstractFu monisin B1 (FB1) is a mycotoxin commonly found in maize and maize-based products. Ingestion of FB1-contaminated causes a myriad of dose- and species-dependent toxic effects to human and animal health. In the present study we evaluated the effects of FB1 (8?mg/kg, i.p. for 4?days) on body weight and oxidative stress parameters in the liver, kidney and lung of C57BL/6 male mice. No changes in the organ-to-body weight ratio, organ-to-adrenal gland weight ratio or organ-to-brain weight ratio were found. On the other hand, FB1 exposure increased NPSH levels in liver and lungs whereas decreased FRAP content in liver and kidneys. Levels of TBARS, ascorbic acid and NOx content were not altered by FB1. In summary, four days of FB1 exposure are sufficient to disrupt antioxidant defenses in liver, kidneys and lungs of C57BL/6 male mice without concomitant changes in organs weight. 相似文献
164.
165.
Estimation of primary drainage three-phase relative permeability for organic liquid transport in the vadose zone 总被引:4,自引:0,他引:4
The modeling of transport of organic liquid contaminants through the vadose zone often requires three-phase relative permeabilities. Since these are difficult to measure, predictive models are usually used. The objective of this study is to assess the ability of eight common models to predict the drainage relative permeability to oil in a three-phase system (water-oil-air). A comparison of the models' estimates using data set from Oak [Oak, M.J., 1990. Three-phase relative permeability of water-wet Berea. In: Seventh Symposium on Enhanced Oil Recovery, Paper SPE/Doe 20183. Tulsa, OK, April 22-25] showed that they provide very different predictions for the same system. The goodness of the models does not increase with the amount of data or computation that the models require. Also, the calculations showed how different interpretations of the models and of the terminology associated with them can significantly impact the predictions. Thus, considerable error may be introduced into the simulations of organic liquid transport in the vadose zone depending on the selection and interpretation of the three-phase relative permeability model. 相似文献
166.
Robson R. M. Barizon Ricardo de Oliveira Figueiredo Débora Renata Cassoli de Souza Dutra Jussara Borges Regitano Vera Lúcia Ferracini 《Journal of environmental science and health. Part. B》2020,55(3):283-292
AbstractCamanducaia River is part of the Piracicaba watershed responsible for pumping water into the Cantareira System, which is one of the main water sources for the metropolis of São Paulo and Campinas, Brazil. Intensive use of pesticides and hilly topography represents a situation of high risk for river water contamination. Therefore, water samples from 12 locations were collected along the Camanducaia River and its tributaries, over a period of 4?mo during the rainy season, and analyzed by GC-MS/MS or UPLC- MS/MS for the presence of 46 pesticides. Seven pesticides (fipronil, methyl parathion, metolachlor, atrazine, carbofuran, diuron, and simazine) were positively detected. Only atrazine (the most frequently detected) and diuron were present at concentrations above the limit of quantification of the analytical method (0.32 and 0.57?μg L?1 for atrazine and diuron, respectively). Pesticides detection frequency was higher than expected for a river system where only 11.8% of the land area is under agriculture. The vulnerability of the Camanducaia basin to pesticide contamination is attributed to the high annual precipitation (> 1.5?m y?1 in the headwaters), associated with topographical features (steep terrain) and soil types that favor surface runoff, which has been exacerbated by poor soil management practices. 相似文献
167.
Lopes Géssica de Oliveira Aragão Walessa Alana Bragança Nascimento Priscila Cunha Bittencourt Leonardo Oliveira Oliveira Ana Carolina Alves Leão Luana Ketlen Reis Alves-Júnior Sergio Melo Pinheiro João de Jesus Viana Crespo-Lopez Maria Elena Lima Rafael Rodrigues 《Environmental science and pollution research international》2021,28(9):10918-10930
Environmental Science and Pollution Research - This study aimed to investigate the effects of lead (Pb) exposure on parotid and submandibular glands through morphological aspects as well as the... 相似文献
168.
da Luz Garcia Maria Oliveira M. Rosário Silva Teresa Neto Castro Ana C. Meira 《Journal of Material Cycles and Waste Management》2021,23(2):699-706
Journal of Material Cycles and Waste Management - The massive amount of plastic production inevitably leads to huge levels of pollution and, consequently, is threatening the environment and... 相似文献
169.
Leão Marcos Lorran Paranhos Penteado Julia Oliveira Ulguim Sabrina Morales Gabriel Rômulo Reginato dos Santos Marina Brum Aline Neutzling Zhang Linjie da Silva Júnior Flavio Manoel Rodrigues 《Environmental science and pollution research international》2021,28(31):41843-41850
Environmental Science and Pollution Research - Studies around the world have revealed reduced levels of atmospheric particulate matter in periods of greatest human mobility restriction to contain... 相似文献
170.
de Oliveira Edison Rogério Marques da Silva Bruno Guzzo Vieira Roniérik Pioli 《Journal of Polymers and the Environment》2021,29(6):1-11
Journal of Polymers and the Environment - Limonene represents a possible candidate for the synthesis of polymers from renewable sources. However, because of some structural characteristics, the... 相似文献