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 | 6篇 |
废物处理 | 25篇 |
环保管理 | 38篇 |
综合类 | 26篇 |
基础理论 | 57篇 |
污染及防治 | 105篇 |
评价与监测 | 52篇 |
社会与环境 | 17篇 |
出版年
2023年 | 9篇 |
2022年 | 15篇 |
2021年 | 22篇 |
2020年 | 5篇 |
2019年 | 8篇 |
2018年 | 10篇 |
2017年 | 7篇 |
2016年 | 9篇 |
2015年 | 7篇 |
2014年 | 17篇 |
2013年 | 40篇 |
2012年 | 15篇 |
2011年 | 21篇 |
2010年 | 11篇 |
2009年 | 17篇 |
2008年 | 19篇 |
2007年 | 10篇 |
2006年 | 10篇 |
2005年 | 12篇 |
2004年 | 9篇 |
2003年 | 11篇 |
2002年 | 2篇 |
2001年 | 1篇 |
2000年 | 1篇 |
1999年 | 1篇 |
1998年 | 2篇 |
1997年 | 2篇 |
1996年 | 2篇 |
1995年 | 1篇 |
1993年 | 1篇 |
1991年 | 2篇 |
1990年 | 4篇 |
1989年 | 3篇 |
1987年 | 1篇 |
1985年 | 2篇 |
1984年 | 1篇 |
1983年 | 1篇 |
1982年 | 3篇 |
1971年 | 3篇 |
1966年 | 3篇 |
1964年 | 2篇 |
1963年 | 1篇 |
1962年 | 1篇 |
1957年 | 1篇 |
1954年 | 1篇 |
排序方式: 共有326条查询结果,搜索用时 31 毫秒
151.
Atmadeep Mazumdar Krishna Nirmalya Sen Balendra Nath Lahiri 《International journal of occupational safety and ergonomics》2007,13(1):49-61
The Haddon matrix is a potential tool for recognizing hazards in any operating engineering system. This paper presents a case study of operational hazards at a large construction site. The fish bone structure helps to visualize and relate the chain of events, which led to the failure of the system. The two-tier Haddon matrix approach helps to analyze the problem and subsequently prescribes preventive steps. The cybernetic approach has been undertaken to establish the relationship among event variables and to identify the ones with most potential. Those event variables in this case study, based on the cybernetic concepts like control responsiveness and controllability salience, are (a) uncontrolled swing of sheet contributing to energy, (b) slippage of sheet from anchor, (c) restricted longitudinal and transverse swing or rotation about the suspension, (d) guilt or uncertainty of the crane driver, (e) safe working practices and environment. 相似文献
152.
Harmful algal blooms (HABs) have been documented along the coasts of India and the ill effects felt by society at large. Most of these reports are from the Arabian Sea, west coast of India, whereas its counterpart, the Bay of Bengal (BOB), has remained unexplored in this context. The unique characteristic features of the BOB, such as large amount of riverine fresh water discharges, monsoonal clouds, rainfall, and weak surface winds make the area strongly stratified. In this study, 19 potentially harmful species which accounted for approximately 14% of the total identified species (134) of dinoflagellates were encountered in surface waters of the BOB during November 2003 to September 2006. The variations in species abundance could be attributed to the seasonal variations in the stratification observed in the BOB. The presence of frequently occurring HAB species in low abundance (≤ 40 cell L(?-1)) in stratified waters of the BOB may not be a growth issue. However, they may play a significant role in the development of pelagic seed banks, which can serve as inocula for blooms if coupled with local physical processes like eddies and cyclones. The predominance of Ceratium furca and Noctiluca scintillans, frequently occurring HAB species during cyclone-prone seasons, point out their candidature for HABs. 相似文献
153.
Tibebu Kassawmar N Ram Mohan Rao K Lemlem Abraha G 《Environmental monitoring and assessment》2011,180(1-4):313-324
Starting with the intensification of irrigation activities in the beginning of 1980s in Abaya and Chamo lakes area, the decreasing water inflow to the lakes caused denudation of the wetlands. The ecological situation in the lake region changed significantly during last four decades. The lakes and associated wetlands change have been studied using Landsat MSS (1973), Landsat TM (1986), and Ladsat ETM (2000) satellite imagery. Along with satellite imagery, other hydro-meteorological data were collected and hydro-meteorological data analyses were done to assess the variability of wetlands. From these data, lakes morphometric property estimation at different time series and water balance analysis for both lakes were done. Wetlands are mapped from the TCT image and these maps are subject to change detection to see the temporal and spatial variability of the wetlands. Moreover, the lake-morphometric area and volume variation have been studied. The result showed that between 1986 and 2000, a significant reduction has been observed but lesser than the previous decades (6.4 km(2)). The identified reason behind this change is that the free settlement and shoreline cultivation of the wetlands causing the soil erosion and eventually adds the sediment to the wetlands. 相似文献
154.
Victor Felix Swamidoss Kugarajah Vaidhegi Bangaru Mohan Ranjan Shivendu Dharmalingam Sangeetha 《Environmental science and pollution research international》2021,28(28):37520-37533
Environmental Science and Pollution Research - Polyvinylidene fluoride (PVDF) blended with varying concentrations of titanium nanotubes (TNT) was electrospun to result in a nanocomposite filter... 相似文献
155.
Markandeya Verma Pradeep Kumar Mishra Vibhuti Singh Neeraj Kumar Shukla Sheo Prasad Mohan Devendra 《Environmental science and pollution research international》2021,28(9):10536-10551
Environmental Science and Pollution Research - The present work aims to investigate seasonal variations in air pollution levels in Lucknow and assess the ambient air quality of the city together... 相似文献
156.
Renthlei Zothanmawii Borah Bijoy Krishna Trivedi Amit Kumar 《Environmental science and pollution research international》2021,28(24):31097-31107
Environmental Science and Pollution Research - Urbanization is a rapidly growing phenomenon that affects wildlife. Laboratory studies show the effects of night light on the physiology of the... 相似文献
157.
Karthika Chenmala Swathy Krishna R Rahman Md. Habibur Akter Rokeya Kaushik Deepak 《Environmental science and pollution research international》2021,28(46):64951-64966
Environmental Science and Pollution Research - The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) outbreak began in late 2019 in Wuhan, China, and have since spread globally. Deep... 相似文献
158.
Rajak Jai Kishan Khandelwal Nitin Behera Mahima Prasad Tiwari Ekta Singh Nisha Ganie Zahid Ahmad Darbha Gopala Krishna Abdolahpur Monikh Fazel Schäfer Thorsten 《Environmental science and pollution research international》2021,28(31):41760-41771
Environmental Science and Pollution Research - Chromite ore processing residues (COPR) are real environmental threats, leading to CrO42-, i.e., Cr (VI) leaching into groundwater. It is of serious... 相似文献
159.
Environmental Chemistry Letters - Computer circuit boards are a major electronic waste containing higher concentrations of copper, gold and silver. These metals may be recovered by bioleaching, an... 相似文献
160.
Glyphosate is used widely to control weeds. Glyphosate is a broad spectrum, non-selective, systemic and post-emergent herbicide. Glyphosate excessive use and impact on the environment is promoting the analysis of glyphosate in water, soil and food materials. Methods to analyse glyphosate at low levels are needed because glyphosate has a short half-life due to easy microbial degradation. Glyphosate has a high polarity and solubility in water, has high binding affinity with soil and is non-volatile. The absence of chromophoric groups in the molecular structure makes the detection difficult. Therefore, detection can be achieved by derivatisation, which makes glyphosate more volatile and stable for spectroscopic analysis. Derivatisation is commonly done by alkyl chloroformates, acylating agents, 9-fluoroenylmethylchloroformate, 4-methoxybenzenesulfonylfluoride and o-phthalaldehyde. Immunosensors allow detection at microlevels. Nanocrystals and nanotechnology allow detection at nanolevels. Here, we review methods to derivatise and analyse glyphosate. 相似文献