全文获取类型
收费全文 | 283篇 |
免费 | 0篇 |
国内免费 | 12篇 |
专业分类
安全科学 | 3篇 |
废物处理 | 17篇 |
环保管理 | 41篇 |
综合类 | 45篇 |
基础理论 | 62篇 |
污染及防治 | 70篇 |
评价与监测 | 37篇 |
社会与环境 | 19篇 |
灾害及防治 | 1篇 |
出版年
2023年 | 7篇 |
2022年 | 21篇 |
2021年 | 12篇 |
2020年 | 6篇 |
2019年 | 7篇 |
2018年 | 7篇 |
2017年 | 17篇 |
2016年 | 5篇 |
2015年 | 8篇 |
2014年 | 14篇 |
2013年 | 31篇 |
2012年 | 12篇 |
2011年 | 16篇 |
2010年 | 15篇 |
2009年 | 14篇 |
2008年 | 10篇 |
2007年 | 10篇 |
2006年 | 12篇 |
2005年 | 11篇 |
2004年 | 7篇 |
2003年 | 4篇 |
2002年 | 5篇 |
2001年 | 1篇 |
1997年 | 1篇 |
1996年 | 1篇 |
1995年 | 2篇 |
1994年 | 3篇 |
1992年 | 2篇 |
1991年 | 1篇 |
1989年 | 1篇 |
1988年 | 1篇 |
1980年 | 2篇 |
1979年 | 4篇 |
1978年 | 1篇 |
1976年 | 5篇 |
1975年 | 1篇 |
1974年 | 4篇 |
1973年 | 3篇 |
1972年 | 2篇 |
1971年 | 2篇 |
1967年 | 1篇 |
1965年 | 1篇 |
1964年 | 1篇 |
1962年 | 1篇 |
1961年 | 1篇 |
1959年 | 1篇 |
1955年 | 1篇 |
排序方式: 共有295条查询结果,搜索用时 15 毫秒
101.
Ningombam Linthoingambi Devi Ishwar Chandra Yadav Q. I. Shihua Surendra Singh S. L. Belagali 《Environmental monitoring and assessment》2011,177(1-4):23-33
Pulp and paper mills generate varieties of pollutants depending upon type of the pulping process being used. This paper presents the characteristics of wastewater from South India Paper Mill, Karnataka, India which is using recycled waste paper as a raw material. The raw wastewater consists of 80?C90 mg L???1 suspended solid and 1,010?C1,015 mg L???1 dissolved solid. However, pH varied from 5.5?C6.8. The biochemical oxygen demand and chemical oxygen demand ranged from 200?C210 and 1,120?C1,160 mg L???1, respectively. Aerobic treatment of raw effluent attribute to significant reduction in suspended solid (range between 25 to 30 mg L???1) and total dissolved solid (range between 360 to 390 mg L???1). However, pH, temperature, and electrical conductivity were found superior after treatment. Copper, cadmium, iron, lead, nickel, and zinc were found in less quantity in raw effluent and were almost completely removed after treatment. The dendrogram of the effluent quality parameters clearly indicate that South India Paper Mill does not meet Minimal National Standard set by central Pollution Control Board to discharge in agricultural field. 相似文献
102.
The use of soil washing to remove petroleum hydrocarbon contamination from the soil matrix is becoming more widely used. When viewed as a volume reduction tool, this technology shows some promise. However, ongoing research and treatability studies indicate that without further treatment, even larger-sized soil fractions (sands and cobbles) may retain hydrocarbon contamination at levels that require further cleaning prior to permanent disposal or reuse. The perception has been that by removing the sand from the soil matrix, thus achieving a 30 percent to 60 percent volume reduction, expensive post-washing treatment or approved disposal of the finer materials (silts and clays) would be cost-effective. There exists evidence to the contrary, however. Hydrocarbon retention after soil washing may be influenced by a number of factors unrelated to particle size. Soil characteristics that may play a role include soil humic acids, metal oxide coatings, geologic origin of the soil particles, and clay type. In this article the authors describe a laboratory study designed to evaluate the “cleanability” of two soils. 相似文献
103.
Hank C. Jenkins-Smith Carol L. Silva Robert P. Berrens Alok Bohara 《Journal of Environmental Planning and Management》2002,45(3):323-339
This paper extends previous research assessing the effects of environmental pollution on property values, and the specific issue of information disclosure requirements on future real estate transactions. Given that various information disclosure requirements were imposed in most US states during the 1990s, it is important to begin to understand their anticipated effects. Using a case of soil contamination in Corpus Christi, TX, USA, this paper applies the contingent valuation method using telephone survey data to investigate the effect of a split-sample information disclosure treatment concerning soil contamination on the willingness to pay of potential home buyers. The authors apply a mixture modelling approach to better explain the effect of the information disclosure requirement. 相似文献
104.
Das Basanta Kumar Roy Aparna Som Sukanya Chandra Ganesh Kumari Suman Sarkar Uttam Kumar Bhattacharjya Birendra Kumar Das Archan Kanti Pandit Arun 《Environmental science and pollution research international》2022,29(6):8452-8463
Environmental Science and Pollution Research - The COVID-19 pandemic has created unprecedented human health crisis in recent global history with rippling social and economic effects. The outbreak... 相似文献
105.
Kulithalai Shiyam Sundar Parthasarathy Deka Paresh Chandra 《Environmental science and pollution research international》2022,29(57):86220-86236
Environmental Science and Pollution Research - Land use and land cover (LULC) change has become a critical issue for decision planners and conservationists due to inappropriate growth and its... 相似文献
106.
Roy Kumarjyoti Sikdar Debdas Pongwisuthiruchte Aphiwat Debnath Subhas Chandra Potiyaraj Pranut 《Journal of Material Cycles and Waste Management》2022,24(4):1533-1541
Journal of Material Cycles and Waste Management - The application of waste materials based fillers is unique way to achieve rubber composites, which reduces the amount of waste in the environment... 相似文献
107.
Biswas Manik Chandra Jony Bodiuzzaman Nandy Pranab Kumar Chowdhury Reaz Ahmed Halder Sudipta Kumar Deepak Ramakrishna Seeram Hassan Masud Ahsan Md Ariful Hoque Md Enamul Imam Muhammad Ali 《Journal of Polymers and the Environment》2022,30(1):51-74
Journal of Polymers and the Environment - Recently, the advantages of biopolymers over conventional plastic polymers are unprecedented, provided that they are used in situations in which they raise... 相似文献
108.
A method for the solid phase extraction of trace metals, namely Co, Cu, Pb, Ni and Zn, from environmental and biological samples using column Amberlite XAD-7 loaded with 2-hydroxy-propiophenone-4-phenyl-3-thiosemicarbazone (HPPPTSC) and determination by inductively coupled spectrometry (ICP–AES) has been developed. The reagent has the capacity to form chelate complexes with the metals because of three binding sites in the reagent molecule. The optimum experimental conditions for the quantitative sorption of five metals, pH, effect of flow rate, concentration of eluent, sorption capacity and the effect of diverse ions on the preconcentration of analytes have been investigated. The sorption capacity of the resin has 83, 127, 35, 88 and 85?µmol?g?1 for Co2+, Cu2+, Pb2+, Ni2+ and Zn2+, respectively. The preconcentration factors for Co2+, Cu2+, Pb2+, Ni2+ and Zn2+ were 100, 110, 120, 140 and 150, respectively. The accuracy of the proposed procedure was evaluated by standard reference materials. The achieved results were in good agreement with certified values. The proposed method was applied for the determination of trace metals in river water and plant leaves. 相似文献
109.
Alok Kumar Vikram Bhardwaj Jitendra Nath Tiwari Devendra Kumar Patel Dhruv Sen Singh Ram Lakhan Singh 《毒物与环境化学》2013,95(2):373-381
Amyotrophic lateral sclerosis (ALS), a progressive disorder that usually runs a fatal course within 2–5 years of onset, is characterized by loss of motor neurons in the cortex, brain stem, and spinal cord. In this study mercury (Hg) concentrations were determined in blood samples of 40 ALS patients, of whom 24 ALS patients were from the Ganga plain region and their metal levels were found to be significantly higher. In contrast, Hg levels in the 16 ALS patients from non-Ganga plain regions whose levels were similar to those of the control subjects. Mercury in stream water samples and freshly deposited stream sediment were determined in the locations of patients’ native residences along the Ganga plain region and metal levels were found to be higher than the threshold guideline values for Hg in stream waters recommended by WHO. The geo-accumulation index in selected sites of freshly deposited stream sediment ranged from moderate to highly polluted. The high levels of Hg observed in ALS patients may potentially alter the redox status of neuronal cell components and induce cell-death pathways. 相似文献
110.
Sorption kinetics and leachability of heavy metal from the contaminated soil amended with immobilizing agent (humus soil and hydroxyapatite) 总被引:2,自引:0,他引:2
Release of heavy metals onto the soil as a result of agricultural and industrial activities may pose a serious threat to the environment. This study investigated the kinetics of sorption of heavy metals on the non-humus soil amended with (1:3) humus soil and 1% hydroxyapatite used for in situ immobilization and leachability of heavy metals from these soils. For this, a batch equilibrium experiment was performed to evaluate metal sorption in the presence of 0.05 M KNO(3) background electrolyte solutions. The Langmuir isotherms applied for sorption studies showed that the amount of metal sorbed on the amended soil decreased in the order of Pb(2+)>Zn(2+)>Cd(2+). The data suggested the possibility of immobilization of Pb due to sorption process and immobilization of Zn and Cd by other processes like co-precipitation and ion exchange. The sorption kinetics data showed the pseudo-second-order reaction kinetics rather than pseudo-first-order kinetics. Leachability study was performed at various pHs (ranging from 3 to 10). Leachability rate was slowest for the Pb(2+) followed by Zn(2+) and Cd(2+). Out of the metal adsorbed on the soil only 6.1-21.6% of Pb, 7.3-39% of Zn and 9.3-44.3% of Cd leached out from the amended soil. 相似文献