全文获取类型
收费全文 | 467篇 |
免费 | 4篇 |
国内免费 | 21篇 |
专业分类
安全科学 | 16篇 |
废物处理 | 56篇 |
环保管理 | 51篇 |
综合类 | 44篇 |
基础理论 | 71篇 |
环境理论 | 3篇 |
污染及防治 | 146篇 |
评价与监测 | 66篇 |
社会与环境 | 36篇 |
灾害及防治 | 3篇 |
出版年
2023年 | 21篇 |
2022年 | 68篇 |
2021年 | 36篇 |
2020年 | 8篇 |
2019年 | 16篇 |
2018年 | 23篇 |
2017年 | 23篇 |
2016年 | 30篇 |
2015年 | 14篇 |
2014年 | 21篇 |
2013年 | 46篇 |
2012年 | 15篇 |
2011年 | 25篇 |
2010年 | 25篇 |
2009年 | 21篇 |
2008年 | 23篇 |
2007年 | 12篇 |
2006年 | 12篇 |
2005年 | 5篇 |
2004年 | 8篇 |
2003年 | 4篇 |
2002年 | 6篇 |
2001年 | 1篇 |
2000年 | 1篇 |
1997年 | 1篇 |
1996年 | 1篇 |
1995年 | 2篇 |
1992年 | 1篇 |
1991年 | 2篇 |
1990年 | 1篇 |
1989年 | 2篇 |
1988年 | 2篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1985年 | 2篇 |
1984年 | 1篇 |
1980年 | 1篇 |
1978年 | 1篇 |
1975年 | 4篇 |
1974年 | 2篇 |
1973年 | 1篇 |
1966年 | 1篇 |
1963年 | 1篇 |
排序方式: 共有492条查询结果,搜索用时 234 毫秒
11.
Textile dye effluents are believed to be toxic as they might exert various harmful effects on living organisms including genotoxicity. These effluents are the main source of direct and continuous input of pollutants into the aquatic ecosystems. In this study, dye effluents from a local silk dyeing industry were analysed for their genotoxic potential by the Allium cepa genotoxicity test. The A. cepa test is characterised as a genotoxicity test where the roots of A. cepa are grown in different concentrations of the test material. The macroscopic results clearly showed that the toxicity of the dye effluents prompted A. cepa root growth inhibition, and this effect increased with higher concentrations of the effluents. At the cellular level, no dividing cells were found at higher concentrations such as 60%, 80% and 100% of the effluents. However, at a lower concentration of 20%, dividing cells were identified, although the mitotic index was much lower than that of the control. Microscopic analysis showed that the dye effluents induced chromosomal aberrations at significant levels. Taken together, these results revealed that the textile dyeing industry effluents are toxic to eukaryotic cells and these dyes have genotoxic properties that can potentially lead to cancer development and adverse health conditions. 相似文献
12.
Environmental Science and Pollution Research - Gaseous fuel as a combustion enhancer with a pilot fuel offers significant benefits in improving engine efficiency. Hydrogen and hydroxy are the two... 相似文献
13.
Md. Sarwar Hossain John A. Dearing M. M. Rahman M. Salehin 《Regional Environmental Change》2016,16(2):429-443
This study takes an historical approach in order to establish how the form and function of the social-ecological system that represents the Bangladesh south-western coastal zone has changed over recent decades. Time series data for a range of ecosystem services and drivers are analysed to define the range of trends, the presence of change points, slow and fast variables and the significant drivers of change. Since the 1980s, increasing gross domestic product and per capita income mirror rising levels of food and inland fish production. As a result, the size of population below the poverty line has reduced by ~17 %. In contrast, non-food ecosystem services such as water availability, water quality and land stability have deteriorated. Conversion of rice fields to shrimp farms is almost certainly a factor in increasing soil and surface water salinity. Most of the services experienced statistically significant change points between 1975 and 1980, and among the services, water availability, shrimp farming and maintenance of biodiversity appear to have passed tipping points. An environmental Kuznets curve analysis suggests that the point at which growing economic wealth feeds back into effective environmental protection has not yet been reached for water resources. Trends in indicators of ecosystem services and human well-being point to widespread non-stationary dynamics governed by slowly changing variables with an increased likelihood of systemic threshold changes/tipping points in the near future. The results will feed into simulation models and strategies that can define alternative and sustainable paths for land management. 相似文献
14.
Nathaniel Solomon Prince Alam Md. Shabbir Murshed Muntasir Mahmood Haider Ahmad Paiman 《Environmental science and pollution research international》2021,28(35):47957-47972
Environmental Science and Pollution Research - In the current century, the G7 countries have attached more importance to energy security, and have prioritized low-carbon sources which have... 相似文献
15.
16.
Islam S. M. Didar-Ul Mondal Prantor Kumar Ojong Nathanael Bodrud-Doza Md. Siddique Md. Abu Bakar Hossain Moazzem Mamun Mohammed A. 《Environment, Development and Sustainability》2021,23(8):11953-11974
Environment, Development and Sustainability - The COVID-19 pandemic has caused a global emergence, and the absence of a proven vaccine or medicine has led to the implementation of measures to... 相似文献
17.
Rehabilitation of river ecosystems is generally initiated when a river is no longer able to provide benefits to humans and other living beings. The major purposes of river rehabilitation projects are improving water quality, conserving nature, rehabilitating fisheries and riparian habitats, flood mitigation, and creating recreational opportunities. For a river rehabilitation project to be successful, it must have specific and clearly explained objectives, although these objectives will vary for each project depending upon factors such as economics, public demand, ecosystem benefits, and the like. In this article, we provide a critical analysis of the purposes that drive river rehabilitation projects and we identify and discuss impediments that can cause a project to deviate from its intended goals. We also discuss major constraints on rehabilitation efforts that can result in failed projects. 相似文献
18.
19.
Aktar MW Paramasivam M Sengupta D Purkait S Ganguly M Banerjee S 《Environmental monitoring and assessment》2009,157(1-4):97-104
An investigation was conducted from 2001 to 2005 for determining the residual concentration of five pesticides, viz., total-HCH, total-DDT, total-Endosulfan, Dimethoate and Malathion in fish samples collected from various points of the river Ganga. Fish samples were analyzed for pesticide residues using standard laboratory procedures by GC method. It was found that total-HCH concentration remains above the MRL values for maximum number of times in comparison to four other pesticides. The pesticide contamination to fish may be due to indiscriminate discharge of polluted and untreated sewage-sludge to the river. The pesticide contents in some places are alarming. Thus proper care, maintenance, treatment and disposal of sewage water and sludge are most vital and should be the prime thrust for the nation. 相似文献
20.
Jumin Ellysia Basaruddin Faridah Bte Yusoff Yuzainee Bte. Md Latif Sarmad Dashti Ahmed Ali Najah 《Environmental science and pollution research international》2021,28(21):26571-26583
Environmental Science and Pollution Research - Reliable and accurate prediction model capturing the changes in solar radiation is essential in the power generation and renewable carbon-free energy... 相似文献