首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   7970篇
  免费   231篇
  国内免费   1800篇
安全科学   413篇
废物处理   497篇
环保管理   668篇
综合类   3050篇
基础理论   1571篇
环境理论   2篇
污染及防治   2799篇
评价与监测   427篇
社会与环境   349篇
灾害及防治   225篇
  2023年   80篇
  2022年   304篇
  2021年   219篇
  2020年   152篇
  2019年   182篇
  2018年   267篇
  2017年   283篇
  2016年   309篇
  2015年   334篇
  2014年   409篇
  2013年   766篇
  2012年   455篇
  2011年   608篇
  2010年   417篇
  2009年   437篇
  2008年   524篇
  2007年   469篇
  2006年   411篇
  2005年   295篇
  2004年   289篇
  2003年   327篇
  2002年   259篇
  2001年   368篇
  2000年   287篇
  1999年   183篇
  1998年   144篇
  1997年   163篇
  1996年   117篇
  1995年   127篇
  1994年   105篇
  1993年   102篇
  1992年   86篇
  1991年   84篇
  1990年   54篇
  1989年   43篇
  1988年   27篇
  1987年   25篇
  1986年   24篇
  1985年   20篇
  1984年   24篇
  1983年   26篇
  1982年   26篇
  1981年   18篇
  1980年   12篇
  1979年   14篇
  1978年   12篇
  1977年   8篇
  1975年   13篇
  1973年   9篇
  1972年   10篇
排序方式: 共有10000条查询结果,搜索用时 70 毫秒
251.
Nanotechnology has widespread application in agricultural, environmental and industrial sectors ranging from fabrication of molecular assemblies to microbial array chips. Despite the booming application of nanotechnology, there have been serious implications which are coming into light in the recent years within different environmental compartments, namely air, water and soil and its likely impact on the human health. Health and environmental effects of common metals and materials are well-known, however, when the metals and materials take the form of nanoparticles – consequential hazards based on shape and size are yet to be explored. The nanoparticles released from different nanomaterials used in our household and industrial commodities find their way through waste disposal routes into the wastewater treatment facilities and end up in wastewater sludge. Further escape of these nanoparticles into the effluent will contaminate the aquatic and soil environment. Hence, an understanding of the presence, behavior and impact of these nanoparticles in wastewater and wastewater sludge is necessary and timely. Despite the lack of sufficient literature, the present review attempts to link various compartmentalization aspects of the nanoparticles, their physical properties and toxicity in wastewater and wastewater sludge through simile drawn from other environmental streams.  相似文献   
252.
Environmental Science and Pollution Research - In this study, the degradation performance of nutrients in zeolite trickling filter (ZTF) with different influent C/N ratios and aeration conditions...  相似文献   
253.
Environmental Science and Pollution Research - This paper presents a quantitative pollutant discharge model for a typical molybdenum roasting plant, which combines the best available technology and...  相似文献   
254.
Environmental Science and Pollution Research - The concentrations of major and trace elements in the sediments from the Four River inlets of Dongting Lake were analysed. The results show that the...  相似文献   
255.
Environmental Science and Pollution Research - For effective photocatalytic pollutant degradation on bismuth tungstate (Bi2WO6), it is vital to enhance the photogenerated charge separation and the...  相似文献   
256.
Environmental Science and Pollution Research - Co3O4 nanorods with diameters of ~0.15 μm and lengths of ~1 μm were prepared using a hydrothermal method via the assembly of microcrystals...  相似文献   
257.
Environmental Science and Pollution Research - In 2017, the 19th National Congress of the Communist Party of China put forward the concept of high-quality economic development, indicating that the...  相似文献   
258.
Environmental Science and Pollution Research - Groundwater resource is significantly important for sustainable development of the world, especially for arid endorheic watersheds. A total of 28...  相似文献   
259.
Environmental Science and Pollution Research - Soil erosion threatens environmental sustainability worldwide. Exploring the trajectories of soil erosion and associated drivers is of great...  相似文献   
260.
Environmental Science and Pollution Research - The prevalence of gestational diabetes mellitus (GDM) is increasing worldwide. Reports of the association between air pollution exposure and GDM have...  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号