全文获取类型
收费全文 | 522篇 |
免费 | 3篇 |
国内免费 | 3篇 |
专业分类
安全科学 | 13篇 |
废物处理 | 31篇 |
环保管理 | 21篇 |
综合类 | 115篇 |
基础理论 | 106篇 |
污染及防治 | 156篇 |
评价与监测 | 68篇 |
社会与环境 | 16篇 |
灾害及防治 | 2篇 |
出版年
2023年 | 6篇 |
2022年 | 18篇 |
2021年 | 18篇 |
2020年 | 12篇 |
2019年 | 9篇 |
2018年 | 22篇 |
2017年 | 22篇 |
2016年 | 32篇 |
2015年 | 19篇 |
2014年 | 34篇 |
2013年 | 70篇 |
2012年 | 39篇 |
2011年 | 41篇 |
2010年 | 28篇 |
2009年 | 18篇 |
2008年 | 13篇 |
2007年 | 13篇 |
2006年 | 13篇 |
2005年 | 6篇 |
2004年 | 4篇 |
2003年 | 6篇 |
2002年 | 5篇 |
2000年 | 3篇 |
1998年 | 2篇 |
1996年 | 3篇 |
1995年 | 3篇 |
1991年 | 3篇 |
1987年 | 3篇 |
1983年 | 1篇 |
1982年 | 5篇 |
1979年 | 1篇 |
1972年 | 1篇 |
1971年 | 1篇 |
1970年 | 1篇 |
1968年 | 1篇 |
1967年 | 3篇 |
1966年 | 1篇 |
1965年 | 2篇 |
1964年 | 3篇 |
1963年 | 1篇 |
1961年 | 3篇 |
1960年 | 4篇 |
1959年 | 6篇 |
1958年 | 10篇 |
1957年 | 4篇 |
1956年 | 6篇 |
1955年 | 1篇 |
1928年 | 1篇 |
1920年 | 1篇 |
1919年 | 1篇 |
排序方式: 共有528条查询结果,搜索用时 218 毫秒
431.
Judita Koreivienė Olga Anne Jūratė Kasperovičienė Vilma Burškytė 《Environmental monitoring and assessment》2014,186(7):4443-4459
The occurrence and severity of harmful cyanobacterial or blue-green algal blooms (HABs) have increased in recent decades, posing a serious threat of illness to humans. In some countries, water contaminated with cyanotoxins that is used for drinking or haemodialysis has posed a particularly serious risk. However, it is now recognized that recreational exposure to natural toxins by skin contact, accidental swallowing of water or inhalation can also cause a wide range of acute or chronic illnesses. In this review, we focus on the importance of cyanotoxin management in recreational waters. The symptoms related with HAB poisonings, the recommended safety concentrations limit for cyanobacteria and cyanotoxins in such waters, as well as early health hazard indicators of their presence and their monitoring are all discussed. We also present in this review an overview of the methods developed in recent decades for eliminating cyanobacteria and the toxic compounds that they produce. 相似文献
432.
Arsenic distribution in water/sediment system of Sevojno 总被引:1,自引:0,他引:1
Arsenic is a toxic and carcinogenic element. Its toxicity depends on its oxidation state and its concentration. The aim of
this paper is to determine, for the first time, the concentration levels of arsenic in water and sediment during the spring/summer
period of 2009 in Sevojno, a region in West Serbia with a long industrial tradition, as well as to determine the model of
arsenic distribution in water/sediment system and the level of its compatibility with the existing theoretical model. Adsorption
is a continual process in the environment. It plays a very important role in the transport and fate of pollutants, especially
in sediment. The adsorption of arsenic was examined using the Freundlich adsorption isotherm. 相似文献
433.
Marian Marschalko Isik Yilmaz Veronika Křístková Matěj Fuka Karel Kubečka Tomáš Bouchal 《Environmental monitoring and assessment》2013,185(1):509-522
Considering growing population and decreasing mineral resource reserves, the issue of undermining has been and shall remain very topical. This study aims to identify the mutual connections between mined out panels of a deposit and the final manifestations on the ground surface related to deep black coal mining. On the grounds of the identified connections, the study describes a method to simplify a common evaluation of undermined areas according to building site categories. Within the study, a demarcation of the areas was conducted in two localities in Czech Republic influenced by the effects of undermining in the Upper-Silesian Basin. In the allotment of the CSM Mine, an area unsuitable for founding structures was defined from the centre of the worked out workings to the distance of 175 m from the panel's edge, for which the corresponding break angle is 78.3°. Similarly, in the allotment of the Paskov Mine, an area unsuitable for founding structures was determined to the distance of 500 m from the panel's edge, for which the corresponding break angle is 50.2°. This demarcation may be implemented prior to deposit mining being aware of several physical-mechanical parameters of rocks in the deposit's overburden. Having mined out a particular section of a deposit, it is recommended to verify the values of break angle using the method described herein. The study may be applied as a relatively fast and effective method to evaluate future land use for planning. 相似文献
434.
Tomáš Chuman Jakub Hruška Filip Oulehle Pavla Gürtlerová Vladimír Majer 《Environmental monitoring and assessment》2013,185(7):5683-5701
In this study, we investigated the relationships between stream water chemistry and watershed characteristics (topography—mean altitude and slope; climate—mean annual temperature and precipitation; geology—geochemical reactivity; land cover; inhabitation—population density, road density and number of municipalities). We analyzed the concentrations of the major anions (Cl, F, NO3, SO4, SiO2), cations (Ca, Mg, Na, K, Mn, Fe, Al), trace elements (Li, Sr, Cu), ABS245, TDP (total dissolved phosphorus), pH, and conductivity at 3,220 diverse watersheds covering a wide variety of watershed characteristics in the Czech Republic. We used marginal and partial multivariate analyses to reveal the most important variables. The partial analysis showed that only 14 % of the variance could be assigned to a specific factor and that 41 % of the variance is shared among the factors, which indicated complex interactions between the watershed characteristics. 相似文献
435.
Godec Ranka Jakovljević Ivana Davila Silvije Šega Krešimir Bešlić Ivan Rinkovec Jasmina Pehnec Gordana 《Environmental geochemistry and health》2021,43(10):3935-3952
Environmental Geochemistry and Health - The aim of this study was to determine the influence of traffic density on air pollutant levels as well as to analyse the spatial and temporal distribution... 相似文献
436.
437.
Bolanča Tomislav Strahovnik Tomislav Ukić Šime Stankov Mirjana Novak Rogošić Marko 《Environmental science and pollution research international》2017,24(19):16172-16185
Environmental Science and Pollution Research - This study describes the development of tool for testing different policies for reduction of greenhouse gas (GHG) emissions in energy sector using... 相似文献
438.
Giulia Longo Fernando Fresno Silvia Gross Urška Lavrenčič Štangar 《Environmental science and pollution research international》2014,21(19):11189-11197
BiVO4/TiO2 composites with different weight ratios have been prepared by coprecipitation-based reactions followed by either thermal or hydrothermal treatment with the aim of evaluating the TiO2 photosensitization by BiVO4. The obtained materials present in all cases the desired monoclinic phase of BiVO4 and anatase phase of TiO2. Visible light absorption increased with increasing amount of bismuth vanadate. XPS results reveal the surface enrichment of Ti with respect to the bulk composition in samples characterised by a higher content of BiVO4. The photocatalytic activity of the prepared materials was tested for the degradation of isopropanol in the gas phase under indoor illumination conditions. Although none of the composites was able to improve the activity of TiO2, the low BiVO4 containing samples appear as more suitable for further synthesis tuning. 相似文献
439.
440.
Nicole Rembert Ka He Suzanne E. Judd Leslie A. McClure 《Environmental monitoring and assessment》2017,189(2):84
Research on trace elements and the effects of their ingestion on human health is often seen in scientific literature. However, little research has been done on the distribution of trace elements in the environment and their impact on health. This paper examines what characteristics among participants in the Reasons for Geographic and Racial Differences in Stroke (REGARDS) study are associated with levels of environmental exposure to arsenic, magnesium, mercury, and selenium. Demographic information from REGARDS participants was combined with trace element concentration data from the US Geochemical Survey (USGS). Each trace element was characterized as either low (magnesium and selenium) or high (arsenic and mercury) exposure. Associations between demographic characteristics and trace element concentrations were analyzed with unadjusted and adjusted logistic regression models. Individuals who reside in the Stroke Belt have lower odds of high exposure (4th quartile) to arsenic (OR 0.33, CI 0.31, 0.35) and increased exposure to mercury (OR 0.65, CI 0.62, 0.70) than those living outside of these areas, while the odds of low exposure to trace element concentrations were increased for magnesium (OR 5.48, CI 5.05, 5.95) and selenium (OR 2.37, CI 2.22, 2.54). We found an association between levels of trace elements in the environment and geographic region of residence, among other factors. Future studies are needed to further examine this association and determine whether or not these differences may be related to geographic variation in disease. 相似文献