全文获取类型
收费全文 | 1616篇 |
免费 | 16篇 |
国内免费 | 40篇 |
专业分类
安全科学 | 22篇 |
废物处理 | 109篇 |
环保管理 | 156篇 |
综合类 | 139篇 |
基础理论 | 290篇 |
环境理论 | 2篇 |
污染及防治 | 545篇 |
评价与监测 | 300篇 |
社会与环境 | 105篇 |
灾害及防治 | 4篇 |
出版年
2023年 | 59篇 |
2022年 | 172篇 |
2021年 | 116篇 |
2020年 | 25篇 |
2019年 | 46篇 |
2018年 | 82篇 |
2017年 | 88篇 |
2016年 | 109篇 |
2015年 | 45篇 |
2014年 | 78篇 |
2013年 | 176篇 |
2012年 | 74篇 |
2011年 | 89篇 |
2010年 | 69篇 |
2009年 | 58篇 |
2008年 | 71篇 |
2007年 | 54篇 |
2006年 | 63篇 |
2005年 | 34篇 |
2004年 | 24篇 |
2003年 | 20篇 |
2002年 | 28篇 |
2001年 | 8篇 |
2000年 | 7篇 |
1999年 | 5篇 |
1998年 | 3篇 |
1997年 | 2篇 |
1996年 | 6篇 |
1995年 | 2篇 |
1994年 | 4篇 |
1993年 | 3篇 |
1992年 | 3篇 |
1989年 | 2篇 |
1988年 | 3篇 |
1985年 | 2篇 |
1984年 | 2篇 |
1983年 | 4篇 |
1982年 | 5篇 |
1979年 | 2篇 |
1969年 | 1篇 |
1966年 | 1篇 |
1965年 | 2篇 |
1964年 | 2篇 |
1962年 | 2篇 |
1961年 | 4篇 |
1958年 | 3篇 |
1957年 | 3篇 |
1956年 | 2篇 |
1955年 | 4篇 |
1953年 | 1篇 |
排序方式: 共有1672条查询结果,搜索用时 15 毫秒
721.
Bhargava Shrey Kumar Singh Thakur Gurjeet Mannan Ashi Singh Shareen Singh Manjinder Gupta Saurabh 《Environmental science and pollution research international》2022,29(40):60542-60557
Environmental Science and Pollution Research - When diabetes neuropathy occurs, the oxidative stress caused by chronic hyperglycemia may result in chronic neuronal damage. To mitigate the effects... 相似文献
722.
Kumar Devendra Pandey Aseesh Rawat Sandeep Joshi Mayank Bajpai Rajesh Upreti Dalip Kumar Singh Surendra Pratap 《Environmental science and pollution research international》2022,29(41):61579-61593
Environmental Science and Pollution Research - Himalaya, the highest mountain system in the world and house of important biodiversity hotspot, is sensitive to projected warming by climate change.... 相似文献
723.
Shinde Ambika H. Sharma Ashwini Doshi Saksham Kumar Madhava Anil Haldar Soumya 《Environmental science and pollution research international》2022,29(36):54136-54149
Environmental Science and Pollution Research - Reduced sulfur compounds are a nuisance in coastal industries causing heavy economical as well as ecological loss. One such compound, hydrogen... 相似文献
724.
Sarkar Pramit Kumar Pawar Sushil S. Rath Sangram K. Kandasubramanian Balasubramanian 《Environmental science and pollution research international》2022,29(18):26078-26112
Environmental Science and Pollution Research - Marine biofouling has gnawed both mobile and non-mobile marine structures since time immemorial, leading to the deterioration of designed operational... 相似文献
725.
Mondal Arnab Sharma Sudhir Kumar Mandal Tuhin Kumar Girach Imran Ojha Narendra 《Environmental science and pollution research international》2022,29(57):85676-85687
Environmental Science and Pollution Research - The megacities experience poor air quality frequently due to stronger anthropogenic emissions. India had one of the longest lockdowns in 2020 to curb... 相似文献
726.
Shrivastava JN Kumar A Bhatnagar VP 《Journal of environmental biology / Academy of Environmental Biology, India》2006,27(4):705-707
Aspergillus was found as a dominant fungi to associate with brands of bindis. Among three potencies of four homeopathic drugs, Lycopodium 1M, Sulphur 1M, and Sepia 30 showed maximum inhibition zone of Aspergillus niger in inhibition zone technique. In poison food technique, Sepia 30M, Tellurium 30M, Sulphur 1M and Lycopodium 200 showed maximum percentage inhibition against A. niger 相似文献
727.
Soni P Sharma S Sharma S Kumar S Sharma KP 《Journal of environmental biology / Academy of Environmental Biology, India》2006,27(4):623-628
Comparative toxicological studies of textile dye wastewater (untreated and treated) on a freshwater fish, Gambusia affinis, revealed a marked reduction in mortality and cytotoxic effects on RBCs, measured as reduction in their counts and percent changes in their shape (poikilocytosis) and variation in their size (anisocytosis)}, after subjecting them to both physicochemical and biological treatments. On comparing the data of mortality and the cytotoxic effects on RBCs, we found poikilocytosis is a better indicator for toxicity measurement of both untreated as well as treated wastewater, especially at their lowest concentrations where percent mortality was found to be either nil or lowerer than the percentage of poikilocytic RBCs. Although percent reduction in RBC counts and changes in their size (anisocytosis) indicated toxic effects of wastewaters, but EC5o values for RBC counts were usually higher than those for poikilocytosis and mortality, and non-calculable for anisocytosis suggesting their lesser sensitivity to pollutants. In view of these findings, we recommend monitoring of toxic effects of wastewaters during fish bioassay on both mortality and variation in RBC shape. 相似文献
728.
Coontail (Ceratophyllum demersum L.) plants when exposed to various concentrations of Pb (1-100microM) for 1-7days, exhibited both phytotoxic and tolerance responses. The specific responses were function of concentration and duration. Plants accumulated 1748mugPbg(-1) dw after 7d which reflected its metal accumulation ability, however most of the metal (1222microgg(-1) dw, 70%) was accumulated after 1d exposure only. The toxic effect and oxidative stress caused by Pb were evident by the reduction in biomass and photosynthetic pigments and increase in malondialddehyde (MDA) content and electrical conductivity with increase in metal concentration and exposure duration. Morphological symptoms of senescence phenomena such as chlorosis and fragmentation of leaves were observed after 7d. The metal tolerance and detoxification strategy adopted by the plant was investigated with reference to antioxidant system and synthesis of phytochelatins. Protein and antioxidant enzymes viz., superoxide dismutase (SOD, EC 1.15.1.1), guaiacol peroxidase (GPX, EC 1.11.1.7) ascorbate peroxidase (APX, EC 1.11.1.11), catalase (CAT, EC 1.11.1.6) and glutathione reductase (GR, EC 1.6.4.2) showed induction at lower concentration and duration followed by decline. All enzymes except GPX showed maximum activity after 1d. An increase in cysteine, non-protein thiols (NP-SH) and glutathione (GSH) content was observed at moderate exposure conditions followed by decline. Phytochelatins (PC(2) and PC(3)) were synthesized to significant levels at 10 and 50microM Pb with concomitant decrease in GSH levels. Thus production of PCs seems important for the detoxification of metal, however it may lead to depletion of GSH and consequently oxidative stress. Results suggest that plants responded positively to moderate Pb concentrations and accumulated high amount of metal. Due to metal accumulation coupled with detoxification potential, the plant appears to have potential for its use as phytoremediator species in aquatic environments having moderate pollution of Pb. 相似文献
729.
In the present study, we isolated three novel bacterial species, namely, Staphylococcus sp., Bacillus circulans-I, and Bacillus circulans-II, from contaminated soil collected from the premises of a pesticide manufacturing industry. Batch experiments were conducted using both mixed and pure cultures to assess their potential for the degradation of aqueous endosulfan in aerobic and facultative anaerobic condition. The influence of supplementary carbon (dextrose) source on endosulfan degradation was also examined. After four weeks of incubation, mixed bacterial culture was able to degrade 71.82 +/- 0.2% and 76.04 +/- 0.2% of endosulfan in aerobic and facultative anaerobic conditions, respectively, with an initial endosulfan concentration of 50 mg l(-1). Addition of dextrose to the system amplified the endosulfan degradation efficiency by 13.36 +/- 0.6% in aerobic system and 12.33 +/- 0.6% in facultative anaerobic system. Pure culture studies were carried out to quantify the degradation potential of these individual species. Among the three species, Staphylococcus sp. utilized more beta endosulfan compared to alpha endosulfan in facultative anaerobic system, whereas Bacillus circulans-I and Bacillus circulans-II utilized more alpha endosulfan compared to beta endosulfan in aerobic system. In any of these degradation studies no known intermediate metabolites of endosulfan were observed. 相似文献
730.
In recent past, Mumbai Municipal corporation was not able to keep pace with required infrastructural facilities due to unprecedented population growth. Sewage disposal is one of the major issues, which needed immediate attention because huge quantity of sewage with only preliminary treatment is disposed into the nearby coastal areas and has deteriorated the water quality of the near coastal region. World Bank assisted Bombay Sewage Disposal Project (BSDP) undertaken by the Municipal Corporation of Bruhan Mumbai (MCBM) envisaged sewage discharges through marine outfalls at Worli and Bandra and treatment by aerated lagoons for other areas before disposal in creeks. During BSDP programme, studies were undertaken on water quality assessment along the west coast of Mumbai before and after commissioning of the Worli outfall. A pre- and post-commissioning water quality database for selected parameters was generated for near shore as well as west coast region up to 5 km seaward distance to assess the efficacy of the Worli outfall and delineate the areas affected around diffuser location of the outfall due to sewage disposal. This paper presents observations of the coastal studies at Mumbai and the impact zone of Worli outfall. 相似文献