全文获取类型
收费全文 | 2681篇 |
免费 | 193篇 |
国内免费 | 993篇 |
专业分类
安全科学 | 196篇 |
废物处理 | 127篇 |
环保管理 | 191篇 |
综合类 | 1707篇 |
基础理论 | 444篇 |
污染及防治 | 731篇 |
评价与监测 | 161篇 |
社会与环境 | 209篇 |
灾害及防治 | 101篇 |
出版年
2024年 | 5篇 |
2023年 | 55篇 |
2022年 | 187篇 |
2021年 | 163篇 |
2020年 | 151篇 |
2019年 | 143篇 |
2018年 | 152篇 |
2017年 | 135篇 |
2016年 | 130篇 |
2015年 | 182篇 |
2014年 | 233篇 |
2013年 | 266篇 |
2012年 | 221篇 |
2011年 | 246篇 |
2010年 | 186篇 |
2009年 | 151篇 |
2008年 | 158篇 |
2007年 | 147篇 |
2006年 | 126篇 |
2005年 | 91篇 |
2004年 | 65篇 |
2003年 | 82篇 |
2002年 | 100篇 |
2001年 | 84篇 |
2000年 | 51篇 |
1999年 | 62篇 |
1998年 | 40篇 |
1997年 | 44篇 |
1996年 | 41篇 |
1995年 | 37篇 |
1994年 | 32篇 |
1993年 | 27篇 |
1992年 | 24篇 |
1991年 | 16篇 |
1990年 | 3篇 |
1989年 | 13篇 |
1988年 | 9篇 |
1986年 | 5篇 |
1982年 | 2篇 |
1981年 | 1篇 |
1978年 | 1篇 |
排序方式: 共有3867条查询结果,搜索用时 343 毫秒
81.
清洁生产纳入环境影响评价的意义 总被引:2,自引:0,他引:2
当前的环境影响评价在某种程度上更侧重于环境的末端治理,无法将污染控制与生产过程控制密切结合,资源和能源不能在生产过程中得到充分利用.而清洁生产在这方面却有着独特的特点和优势.根据清洁生产与环境影响评价的内在联系,尽快地将清洁生产纳入环境影响评价是具有重要意义的,清洁生产应该成为环境影响评价报告撰写中的重要内容. 相似文献
82.
Use of Microbial Community to Evaluate Performance of a Wetland System in Treating Pb/Zn Mine Drainage 总被引:2,自引:0,他引:2
The performance of a wetland system in treating lead (Pb)/zinc (Zn) mine drainage was evaluated by using the polyurethane
foam unit (PFU) microbial community (method), which has been adopted by China as a standardized procedure for monitoring water
quality. The wetland system consisted of four cells with three dominant plants: Typha latifolia, Phragmites australis and Paspalum distichum. Physicochemical characteristics [pH, EC, content of total suspended solid (TSS) and metals (Pb, Zn, Cd, and Cu)] and PFU
microbial community in water samples had been investigated from seven sampling sites. The results indicated that the concentrations
of Pb, Zn, Cd, Cu, and TSS in the mine drainage were gradually reduced from the inlet to the outlet of the wetland system
and 99%, 98%, 75%, 83%, and 68% of these metals and TSS respectively, had been reduced in concentration after the drainage
passed through the wetland system. A total of 105 protozoan species were identified, the number of protozoa species and the
diversity index (DI) gradually increased, while the heterotrophic index (HI) gradually decreased from the inlet to the outlet
of the wetland system. The results indicated that DI, HI, and total number species of protozoa could be used as biological
indicators indicating the improvement of water quality. 相似文献
83.
Ma Xiaodong Xue Yongxuan 《Environmental science and pollution research international》2023,30(13):35588-35601
Environmental Science and Pollution Research - More and more emphasis is placed on the common development of economy and ecological environment in China’s development strategy, and one of the... 相似文献
84.
Wang Weiwei Xue Jinchun You Jiajia Han Huaqin Qi Hui Wang Xiaojuan 《Environmental science and pollution research international》2023,30(8):19790-19802
Environmental Science and Pollution Research - Phytoremediation is considered to be the most environmentally friendly green restoration technology for dealing with mine waste. Adding amendments can... 相似文献
85.
86.
Zhi-Long Ye Xiaoqing Xie Lanhua Dai Ziwen Wang Wenhua Wu Fuyi Zhao Xiaoming Xie Shiqing Huang Meiling Liu Shaohua Chen 《Waste management (New York, N.Y.)》2014,34(11):2305-2311
Fresh leachate, generated in municipal solid waste incineration (MSWI) plants, contains various pollutants with extremely high strength organics, which usually requires expensive and complex treatment processes. This study investigated the feasibility of blending treatment of MSWI leachate with municipal wastewater. Fresh MSWI leachate was pretreated by coagulation–flocculation with FeCl3 2 g/L and CaO 25 g/L, plate-and-frame filter press, followed by ammonia stripping at pH above 12. After that, blending treatment was carried out in a full-scale municipal wastewater treatment plant (WWTP) for approximately 3 months. Different operational modes consisting of different pretreated leachate and methanol addition levels were tested, and their performances were evaluated. Results showed that throughout the experimental period, monitored parameters in the WWTP effluent, including COD (<60 mg/L), BOD5 (<20 mg/L), ammonium (<8 mg/L), phosphorus (<1.5 mg/L) and heavy metals, generally complied with the Chinese sewage discharged standard. Under the experimental conditions, a certain amount of methanol was needed to fulfill TN removal. An estimation of the operation cost revealed that the expenditure of blending treatment was much lower than the total costs of respective treatment of MSWI leachate and municipal wastewater. The outcomes indicated that blending treatment could not only improve the treatability of the MSWI leachate, but also reduce the treatment cost of the two different wastewaters. 相似文献
87.
88.
89.
Sun Xue Li Chaolin Ren Liyuan Wang Wenhui 《Environmental science and pollution research international》2021,28(22):27520-27527
Environmental Science and Pollution Research - VUV/UV photodegradation technology, which is free of catalysts or oxidants, has been regarded as an efficient method to decompose gaseous VOCs.... 相似文献
90.
Jafri Muhammad Afaq Haider Liu Huizheng Majeed Muhammad Tariq Ahmad Waheed Ullah Sana Xue Rui 《Environmental science and pollution research international》2021,28(13):16129-16139
Environmental Science and Pollution Research - This study explores the symmetric and asymmetric effects of physical infrastructure on energy consumption, economic growth, and air pollution of... 相似文献