全文获取类型
收费全文 | 283篇 |
免费 | 3篇 |
国内免费 | 8篇 |
专业分类
安全科学 | 9篇 |
废物处理 | 30篇 |
环保管理 | 24篇 |
综合类 | 18篇 |
基础理论 | 42篇 |
污染及防治 | 128篇 |
评价与监测 | 28篇 |
社会与环境 | 13篇 |
灾害及防治 | 2篇 |
出版年
2023年 | 8篇 |
2022年 | 43篇 |
2021年 | 30篇 |
2020年 | 12篇 |
2019年 | 20篇 |
2018年 | 18篇 |
2017年 | 19篇 |
2016年 | 18篇 |
2015年 | 9篇 |
2014年 | 20篇 |
2013年 | 27篇 |
2012年 | 10篇 |
2011年 | 11篇 |
2010年 | 9篇 |
2009年 | 5篇 |
2008年 | 9篇 |
2007年 | 2篇 |
2006年 | 5篇 |
2005年 | 1篇 |
2004年 | 1篇 |
2003年 | 1篇 |
2002年 | 5篇 |
2001年 | 1篇 |
2000年 | 3篇 |
1996年 | 2篇 |
1995年 | 1篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1982年 | 1篇 |
排序方式: 共有294条查询结果,搜索用时 15 毫秒
251.
Khalid Khaizran Usman Muhammad Mehdi Muhammad Abuzar 《Environmental science and pollution research international》2021,28(6):6422-6436
Environmental Science and Pollution Research - In recent years, financial development, trade policies, and energy performance have attracted attention due to their behavior on environmental... 相似文献
252.
Khalid Foqia Hashmi Muhammad Zaffar Jamil Nadia Qadir Abdul Ali Muhammad Ishtiaq 《Environmental science and pollution research international》2021,28(9):10474-10487
Environmental Science and Pollution Research - Electronic waste is termed as e-waste and on recycling it produces environmental pollution. Among these e-waste pollutants, polychlorinated biphenyls... 相似文献
253.
Anser Muhammad Khalid Usman Bushra Hyder Shabir Nassani Abdelmohsen A. Askar Sameh E. Zaman Khalid Abro Muhammad Moinuddin Qazi 《Environmental science and pollution research international》2021,28(36):49820-49832
Environmental Science and Pollution Research - The study’s objective is to evaluate the impact of environmental sustainability rating, financial development, changes in the price level and... 相似文献
254.
Norm and associated radiation hazards in bricks fabricated in various localities of the North-West Frontier Province (Pakistan). 总被引:1,自引:0,他引:1
The activity concentrations of natural gamma-emitting radionuclides and associated radiation hazards due to 40K, 226Ra and 232Th have been measured in baked brick samples, collected from six highly populated areas of the North-West Frontier Province (NWFP) of Pakistan. For the detection, analysis and data acquisition, a high purity germanium (HPGe) detector coupled with a high resolution multichannel analyser (MCA) was used. The range of the average values of the activity concentrations due to 40K, 226Ra and 232Th were found to be 680.3 +/- 22.2-784.4 +/- 30.7 Bq kg(-1), 36.9 +/- 3.5-51.9 +/- 3.3 Bq kg(-1) and 52.5 +/- 3.6-67.6 +/- 3.1 Bq kg(-1), respectively. Radium equivalent (Ra(eq)) activities and various hazard indices were also calculated to assess the radiation hazards. All the brick samples showed Ra, activities within the limit (370 Bq kg(-1)) set by the Organization for Economic Cooperation and Development (OECD) countries. The results of different criterion formulae also complemented each other in this study. The derived data have been compared with the reported values for other countries of the world. 相似文献
255.
Mehdi Hassanshahian Zeynab Bayat Simone Cappello Francesco Smedile Michail Yakimov 《环境科学学报(英文版)》2016,28(5):136-146
In order to better understand the effects of biostimulation and bioaugmentation processes on a marine microbial community, three different mesocosm experiments were planned. Natural seawater(10.000 L) was artificially polluted with crude oil(1 L) and(1) inorganic nutrients(Biostimulating Mesocosm, BM),(2) inorganic nutrients and an inoculum of Alcanivorax borkumensis SK2(Single Bioaugmentation Mesocosm, SBM),(3) inorganic nutrients and inoculums of A. borkumensis SK2 and Thalassolituus oleivorans MIL-1(Consortium Bioaugmentation Mesocosm, CBM). During the experimental period(20 days), samples were taken from each mesocosm and the community structure was analyzed by PCR–DGGE. The 16 S r RNA gene DGGE banding patterns and sequence analysis demonstrated that biostimulation had the lowest effect on microbial biodiversity in the mesocosms; however, the biodiversity of the marine microbial community dramatically decreased in the CBM(Shannon index was 0.6 in T3). The community structures among the three mesocosms were also markedly different,and major bacteria derived from DGGE bands were related to uncultured Gamma Proteobacteria. The biodegradation results show that the Single Bioaugmentation Mesocosm(SBM) system had the highest percentage of degradation(95%) in comparison to the BM mesocosm(80%) and CBM(70%). 相似文献
256.
257.
The global agenda of sustainable development (SD) will get a major boost from the successful implementation of the Sustainable Development Goals (SDGs) in developing countries. This requires effective planning and understanding of the SDGs at the national level and developing sound SDG indicators that account for country priorities. Currently, there is no formal SDG indicator set in India, but the process for it is underway. This paper has attempted to propose a unique technique for identifying the most representative indicator set for SD measurement in India based on the SDGs. Considering the needs and preferences of the country, a three‐stage process is proposed to develop the priority indicator set. The application of the approach has been presented for SDG 7, which relates to energy. This is supported with a background on India's SD progress. The proposed technique is simple yet effective, and can be easily replicated by other developing countries. 相似文献
258.
Sara kaffashi Mad Nasir Shamsudin Alias Radam Khalid Abdul Rahim Mohd Rusli Yacob Azizi Muda Muhammad Yazid 《Regional Environmental Change》2011,11(4):925-934
Wetlands are among the most productive ecosystems on the earth. They produce various market and non-market goods and services,
which have a significant role in human welfare. Despite the great opportunities from sustainable development, wetlands all
over the world are under serious threat from a diverse range of non-sustainable activities. One of the major reasons for excessive
depletion and the conversion of wetland resources is due to underestimating the non-market values of wetlands during development
decisions. Shadegan International Wetland (SIW) in southern Iran is one of these wetland areas that is threatened by undervaluation
and overexploitation from commercial activities. This study utilizes the contingent valuation method to estimate the economic
benefits of SIW from the view point of peoples’ willingness to pay (WTP). The logit model was defined based on dichotomous
choice to measure individuals’ WTP. The estimated mean WTP was US$ 1.74 per household as a onetime donation. This study concludes
that the benefits of SIW to society could encourage managers to set priorities to ensure that the health of the ecosystem,
its integrity, and its uniqueness would be conserved in a proper manner. 相似文献
259.
Sara Kaffashi Mad Nasir Shamsudin Alias Radam Khalid Abdul Rahim Mohd Rusli Yacob 《The Environmentalist》2013,33(2):251-260
The inclusion of both non-use values and values placed by non-users provide more reliable results about the real values of wetlands. A choice experiment method was conducted to estimate the willingness to pay for environmental conservation in non-users’ communities adjacent to the Shadegan International Wetland (SIW) in Iran. A random parameter logit (RPL) model was developed to derive the marginal value and compensating surplus of the respondents for five attributes of the non-market values of SIW. The trade-off between five different wetland attributes showed that water quality improvement and biodiversity conservation were the most highly valued attributes. The results demonstrated that about 66 % of non-users were willing to donate money for the contribution in SIW conservation, suggesting that non-users have the potential to contribute to SIW conservation programs. 相似文献
260.
Ali Behnamfard Mohammad Mehdi Salarirad Francesco Veglio 《Waste management (New York, N.Y.)》2013,33(11):2354-2363
A novel hydrometallurgical process was proposed for selective recovery of Cu, Ag, Au and Pd from waste printed circuit boards (PCBs). More than 99% of copper content was dissolved by using two consecutive sulfuric acid leaching steps in the presence of H2O2 as oxidizing agents. The solid residue of 2nd leaching step was treated by acidic thiourea in the presence of ferric iron as oxidizing agent and 85.76% Au and 71.36% Ag dissolution was achieved. The precipitation of Au and Ag from acidic thiourea leachate was investigated by using different amounts of sodium borohydride (SBH) as a reducing agent. The leaching of Pd and remained gold from the solid reside of 3rd leaching step was performed in NaClO-HCl-H2O2 leaching system and the effect of different parameters was investigated. The leaching of Pd and specially Au increased by increasing the NaClO concentration up to 10 V% and any further increasing the NaClO concentration has a negligible effect. The leaching of Pd and Au increased by increasing the HCl concentration from 2.5 to 5 M. The leaching of Pd and Au were endothermic and raising the temperature had a positive effect on leaching efficiency. The kinetics of Pd leaching was quite fast and after 30 min complete leaching of Pd was achieved, while the leaching of Au need a longer contact time. The best conditions for leaching of Pd and Au in NaClO-HCl-H2O2 leaching system were determined to be 5 M HCl, 1 V% H2O2, 10 V% NaClO at 336 K for 3 h with a solid/liquid ratio of 1/10. 100% of Pd and Au of what was in the chloride leachate were precipitated by using 2 g/L SBH. Finally, a process flow sheet for the recovery of Cu, Ag, Au and Pd from PCB was proposed. 相似文献