全文获取类型
收费全文 | 195篇 |
免费 | 0篇 |
国内免费 | 4篇 |
专业分类
安全科学 | 3篇 |
废物处理 | 5篇 |
环保管理 | 11篇 |
综合类 | 37篇 |
基础理论 | 40篇 |
污染及防治 | 86篇 |
评价与监测 | 9篇 |
社会与环境 | 6篇 |
灾害及防治 | 2篇 |
出版年
2021年 | 3篇 |
2017年 | 1篇 |
2016年 | 6篇 |
2015年 | 4篇 |
2014年 | 3篇 |
2013年 | 14篇 |
2012年 | 6篇 |
2011年 | 20篇 |
2010年 | 13篇 |
2009年 | 16篇 |
2008年 | 8篇 |
2007年 | 8篇 |
2006年 | 17篇 |
2005年 | 15篇 |
2004年 | 14篇 |
2003年 | 8篇 |
2002年 | 7篇 |
2001年 | 1篇 |
2000年 | 6篇 |
1999年 | 5篇 |
1998年 | 5篇 |
1997年 | 1篇 |
1996年 | 3篇 |
1995年 | 5篇 |
1993年 | 1篇 |
1991年 | 1篇 |
1987年 | 1篇 |
1985年 | 1篇 |
1982年 | 1篇 |
1969年 | 1篇 |
1965年 | 3篇 |
1963年 | 1篇 |
排序方式: 共有199条查询结果,搜索用时 31 毫秒
81.
Xie Z Ebinghaus R Flöser G Caba A Ruck W 《Environmental pollution (Barking, Essex : 1987)》2008,156(3):1190-1195
The potential of triclosan (TCS) acting as an endocrine disruptor has led to growing concern about the presence of TCS in the environment. In this study, seawater samples were collected from the German Bight during sampling campaigns conducted with the German research ships Gauss and Ludwig Prandtl. TCS was determined both in the dissolved phase and in the suspended particulate matters with concentrations ranging 0.8-6870 pg L−1 and <1-95 pg L−1, respectively. High concentrations of TCS were present in the estuaries of the Elbe and the Weser, indicating significant input of TCS by the river discharge. The correlation coefficient (R2) between the dissolved concentration and salinity was 0.79 for the data obtained from the Gauss cruise, showing an obvious declining trend from the coast to the open sea. 相似文献
82.
Ralf Zimmermann Fabian Mühlberger Katrin Fuhrer Marc Gonin Werner Welthagen 《Journal of Material Cycles and Waste Management》2008,10(1):24-31
A recently developed novel intense rare-gas excimer vacuum ultraviolet (VUV) light source, the electron beam-pumped excimer
lamp (EBEL), has been applied to the soft single-photon ionization (SPI) of organic molecules in a compact orthogonal acceleration
time-of-flight mass spectrometer (oaTOFMS). The SPI-oaTOFMS system was applied to the on-line monitoring of tobacco smoke. With this setup, it was possible to analyze the composition
of individual puffs of cigarette smoke. Furthermore, a gas chromatograph (GC) was coupled to the EBEL SPIoaTOFMS system. Soft photo-ionization represents an additional separation dimension. By combination of the gas chromatographic
and the soft-ionization mass spectroscopic separation dimensions, a truly multidimensional comprehensive analytical method
could be derived. 相似文献
83.
84.
Heavy bombing during World War II in Europe, particularly in Germany, left thousands of unexploded bombs buried underground and underwater. The bombs can be detected with magnetic sensors, but sorting through the huge amounts of data generated in area searches has proven to be by far the most difficult part of the task. Recently, a data analysis program has been developed that is capable of correlating global positioning system (GPS) data to magnetic sensor readings to identify likely bomb site candidates in a remarkably short period of time. A key to the success of this application is the use of packaged data-analysis software, Origin, from Microcal Software, Inc. (Northampton, Massachusetts), which is capable of interfacing to external C and C++ pattern curve-fitting routines that operate at the required high rates of speed. 相似文献
85.
86.
87.
Ralf Riedel 《Die Naturwissenschaften》1995,82(1):12-20
Dedicated to Prof. Dr. E. Fluck The present contribution reports on the synthesis of novel ceramic materials from molecular precursors like inorganic-organic hybrid polymers. This process, denoted as polymer pyrolysis, was developed in the mid-1970s for the fabrication of inorganic fibers made of silicon carbide (SiC). Current investigations and results in this field of research are highlighted. The main topics reviewed are related to the synthesis of appropriate polymeric ceramic precursors, especially for the preparation of multicomponent materials, the processing of the molecular compounds to ceramic components, and finally to the characterization of the material properties. 相似文献
88.
Ralf Dillert Matthias Brandt Iris Fornefett Ulrike Siebers Detlef Bahnemann 《Chemosphere》1995,30(12):2333-2341
The photocatalytic degradation of 2,4,6-trinitrotoluene and ten other nitroaromatic compounds in aerated TiO2 suspensions has been studied. The following order of reactivity was observed: nitrotoluenes > nitrobenzene > dinitrotoluenes . dinitrobenzenes > 2,4,6-trinitrotoluene > 1,3,5-trinitrobenzene, which reflects the known influence of nitro groups towards the attack of electrophilic reagents on the aromatic molecule. 相似文献
89.
Müller T Thissen R Braun S Dott W Fischer G 《Environmental science and pollution research international》2004,11(2):91-97
GOAL, SCOPE AND BACKGROUND: Malodorous volatiles derived from the decomposition of biowaste within the process of composting might pose a risk to human health. Different techniques of process engineering have been developed to minimise the burden of malodorous compounds in air possibly affecting compost workers and residents in the vicinity. METHODS: In the present study, three different composting facilities were examined for the emission of volatiles to estimate the impact of process engineering on the dispersal of odorous compounds and to discuss its relevance for human health. RESULTS AND DISCUSSION: Concentrations of single compounds belonging to alcohols, ketones, furanes, sulfur-containing compounds and especially terpenes ranged from 10(2) up to nearly 10(6) ng/m3 depending on the sampling sites and the process engineering. The ratio of MVOC and total VOC measured changed throughout the process of biodegradation. A certain combination of volatile compounds coincided with the occurrence of typical compost odour. CONCLUSION: The type of process engineering seemed to have a major impact on the emission of volatiles, as amounts of (microbial) volatiles emitted were characteristic for the different techniques used. Thus, the MVOC emission basically depends on the degree of biodegradation. It is likely that the concentrations workers are exposed to can have an impact on human health. RECOMMENDATIONS AND OUTLOOK: It is obvious that less sophisticated types of process engineering give rise to greater amounts of bioaerosols and volatiles and, therefore, technical devices have to be improved and controlled regularly to minimise adverse health effects on workers. 相似文献
90.
Jürgen Schnelle-Kreis Martin Sklorz Anette Peters Josef Cyrys Ralf Zimmermann 《Atmospheric environment (Oxford, England : 1994)》2005,39(40):7702-7714
PM2.5 Particle-associated semi-volatile organic compounds (SVOC) were determined in the city of Augsburg, Germany. Daily samples were collected at a central monitoring station from late summer to late autumn 2002. The concentrations of polycyclic aromatic hydrocarbons (PAH), oxidized PAH (O-PAH), n-alkanes, hopanes and long chain linear alkylbenzenes were determined by direct thermal desorption-gas chromatography-time of flight mass spectrometry (DTD-GC-TOFMS). Additionally, PM2.5 particle mass and number concentrations were measured. The sampling campaign can be divided into two parts, distinguished by a lower temperature level in the second part of the campaign. The particulate mass concentration showed no significant changes, whereas most of the SVOC had significant higher mean and peak concentrations in the colder period. The analysis of the data showed an increased influence of non-traffic sources in the colder period, reflected by a weak shift in the PAH profile and a significant shift in the hopane pattern. Statistical analysis of the inter-group correlations was carried out. Eight clusters partly representing different sources of the aerosol have been identified. 相似文献