全文获取类型
收费全文 | 155篇 |
免费 | 4篇 |
专业分类
安全科学 | 3篇 |
废物处理 | 1篇 |
环保管理 | 16篇 |
综合类 | 34篇 |
基础理论 | 53篇 |
污染及防治 | 40篇 |
评价与监测 | 6篇 |
社会与环境 | 6篇 |
出版年
2022年 | 2篇 |
2020年 | 1篇 |
2019年 | 1篇 |
2018年 | 1篇 |
2017年 | 4篇 |
2016年 | 2篇 |
2015年 | 4篇 |
2014年 | 2篇 |
2013年 | 9篇 |
2012年 | 7篇 |
2011年 | 10篇 |
2010年 | 8篇 |
2009年 | 11篇 |
2008年 | 9篇 |
2007年 | 15篇 |
2006年 | 4篇 |
2005年 | 6篇 |
2003年 | 4篇 |
2002年 | 8篇 |
2001年 | 2篇 |
2000年 | 4篇 |
1999年 | 5篇 |
1998年 | 2篇 |
1997年 | 2篇 |
1996年 | 2篇 |
1995年 | 2篇 |
1994年 | 4篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1988年 | 1篇 |
1985年 | 3篇 |
1984年 | 1篇 |
1981年 | 2篇 |
1979年 | 1篇 |
1978年 | 1篇 |
1977年 | 1篇 |
1975年 | 1篇 |
1974年 | 4篇 |
1973年 | 1篇 |
1972年 | 1篇 |
1965年 | 1篇 |
1964年 | 2篇 |
1959年 | 1篇 |
1958年 | 2篇 |
1940年 | 2篇 |
1937年 | 1篇 |
排序方式: 共有159条查询结果,搜索用时 15 毫秒
111.
112.
The Science of Nature - 相似文献
113.
Volker Weidemann 《Die Naturwissenschaften》1977,64(5):240-246
The 8th Texas Symposium on Relativistic Astrophysics, was held in Boston, Mass., Dec. 13–17, 1976. This report includes topics on X-ray binaries, globular cluster sources and the newly detected bursters; neutron stars and black holes; cosmology and gravitation theory. 相似文献
114.
115.
116.
The degradation of diesel fuel by a microbial community from a soil polluted by heavy metals (h.m.) in the presence of Cu, Ni, Zn, Pb, Cd, Hg and Cr (as chromate) was investigated. Experiments were conducted with soil slurries and the extracted community in liquid cultivation. The concentrations applied were in the sub-mM and mM range. Whereas the slurries displayed no significant effect, degradation in liquid culture was increasingly inhibited by higher metal concentrations. The course of degradation in suspension was demonstrated by the oxygen consumption. The order of toxicity was found to be: Hg > Cr(VI) > Cu > Cd > Ni > Pb > Zn. The absence of any effect for slurries was due to the non-availability of the metals in the soil, and to precipitation or adsorption to the soil in the case of amendment. The paper also includes results on the availability of h.m. and changes to the community after exposure. 相似文献
117.
118.
Volker Berding Stefan Schwartz Michael Matthies 《Environmental science and pollution research international》2000,7(3):147-158
Regional PECs (Potential Environmental Concentrations) calculated with the software EUSES were compared with measured values
using different emission and environmental distribution scenarios. The environmental data set recommended in EUSES (default
data set) represents a generic standard region. In different scenarios the parameters of the generic region are replaced by
concrete values, and estimated parameters (emissions, degradation rates and partition coefficients) are substituted by measured
or investigated values. Deviations with regard to the measured values can be up to three orders of magnitude. Despite the
basically conservative approximations, underestimations can occur. However, these are usually due to poor monitoring data
or inappropriate input values. The use of regional data instead of default parameters only slightly ameliorates the results.
The use of real emission and degradation rates alone can improve the results significantly. 相似文献
119.
Annekatrin Dreyer Volker Matthias Ingo Weinberg Ralf Ebinghaus 《Environmental pollution (Barking, Essex : 1987)》2010,158(5):1221-9909
Twenty precipitation samples were taken concurrently with air samples at a northern German monitoring site over a period of 7 months in 2007 and 2008. Thirty four poly- and perfluorinated compounds (PFC) were determined in rain water samples by solid phase extraction and HPLC-MS/MS analysis. Seventeen compounds were detected in rain water with ΣPFC concentrations ranging from 1.6 ng L−1 to 48.6 ng L−1. Perfluorooctanoate (PFOA) and perfluorobutanate (PFBA) were the compounds that were usually observed in highest concentrations. Calculated ΣPFC deposition rates were between 2 and 91 ng m−2 d−1. These findings indicate that particle phase PFC are deposited from the atmosphere by precipitation. A relationship between PFC wet deposition and air concentration may be established via precipitation amounts. Trajectory analysis revealed that PFC concentration and deposition estimates in precipitation can only be explained if a detailed air mass history is considered. 相似文献
120.
Tang T Hurraß J Gminski R Mersch-Sundermann V 《Environmental science and pollution research international》2012,19(9):3840-3849