全文获取类型
收费全文 | 263篇 |
免费 | 0篇 |
国内免费 | 2篇 |
专业分类
安全科学 | 6篇 |
废物处理 | 23篇 |
环保管理 | 27篇 |
综合类 | 52篇 |
基础理论 | 63篇 |
污染及防治 | 66篇 |
评价与监测 | 22篇 |
社会与环境 | 6篇 |
出版年
2023年 | 1篇 |
2022年 | 9篇 |
2021年 | 8篇 |
2020年 | 5篇 |
2019年 | 9篇 |
2018年 | 5篇 |
2017年 | 10篇 |
2016年 | 16篇 |
2015年 | 13篇 |
2014年 | 17篇 |
2013年 | 24篇 |
2012年 | 10篇 |
2011年 | 13篇 |
2010年 | 10篇 |
2009年 | 15篇 |
2008年 | 21篇 |
2007年 | 11篇 |
2006年 | 13篇 |
2005年 | 10篇 |
2004年 | 9篇 |
2003年 | 8篇 |
2002年 | 6篇 |
1999年 | 1篇 |
1998年 | 2篇 |
1994年 | 1篇 |
1992年 | 3篇 |
1991年 | 2篇 |
1989年 | 1篇 |
1988年 | 2篇 |
1986年 | 4篇 |
1984年 | 1篇 |
1961年 | 1篇 |
1960年 | 1篇 |
1940年 | 1篇 |
1938年 | 2篇 |
排序方式: 共有265条查询结果,搜索用时 15 毫秒
231.
Pedretti D Masetti M Marangoni T Beretta GP 《Environmental monitoring and assessment》2012,184(2):607-624
A specific 2-year program to monitor and test both the vadose zone and the saturated zone, coupled with a numerical analysis,
was performed to evaluate the overall performance of slurry wall systems for containment of contaminated areas. Despite local
physical confinement (slurry walls keyed into an average 2-m-thick aquitard), for at least two decades, high concentrations
of chlorinated solvents (up to 110 mg l − 1) have been observed in aquifers that supply drinking water close to the city of Milan (Italy). Results of monitoring and
in situ tests have been used to perform an unsaturated-saturated numerical model. These results yielded the necessary quantitative
information to be used both for the determination of the hydraulic properties of the different media in the area and for the
calibration and validation of the numerical model. Backfill material in the shallower part of the investigated aquifer dramatically
affects the natural recharge of the encapsulated area. A transient simulation from wet to drought periods highlights a change
in the ratio between leakages from lateral barriers that support a specific scenario of water loss through the containment
system. The combination of monitoring and modelling allows a reliable estimate of the overall performance of the physical
confinement to be made without using any invasive techniques on slurry wall. 相似文献
232.
Librando V Tringali G Calastrini F Gualtieri G 《Environmental monitoring and assessment》2009,158(1-4):479-498
Mathematical models were developed to simulate the production and dispersion of aerosol phase atmospheric pollutants which are the main cause of the deterioration of monuments of great historical and cultural value. This work focuses on Particulate Matter (PM) considered the primary cause of monument darkening. Road traffic is the greatest contributor to PM in urban areas. Specific emission and dispersion models were used to study typical urban configurations. The area selected for this study was the city of Florence, a suitable test bench considering the magnitude of architectural heritage together with the remarkable effect of the PM pollution from road traffic. The COPERT model, to calculate emissions, and the street canyon model coupled with the CALINE model, to simulate pollutant dispersion, were used. The PM concentrations estimated by the models were compared to actual PM concentration measurements, as well as related to the trend of some meteorological variables. The results obtained may be defined as very encouraging even the models correlated poorly: the estimated concentration trends as daily averages moderately reproduce the same trends of the measured values. 相似文献
233.
234.
Oleksandra Ganzenko David Huguenot Eric D. van Hullebusch Giovanni Esposito Mehmet A. Oturan 《Environmental science and pollution research international》2014,21(14):8493-8524
As pollution becomes one of the biggest environmental challenges of the twenty-first century, pollution of water threatens the very existence of humanity, making immediate action a priority. The most persistent and hazardous pollutants come from industrial and agricultural activities; therefore, effective treatment of this wastewater prior to discharge into the natural environment is the solution. Advanced oxidation processes (AOPs) have caused increased interest due to their ability to degrade hazardous substances in contrast to other methods, which mainly only transfer pollution from wastewater to sludge, a membrane filter, or an adsorbent. Among a great variety of different AOPs, a group of electrochemical advanced oxidation processes (EAOPs), including electro-Fenton, is emerging as an environmental-friendly and effective treatment process for the destruction of persistent hazardous contaminants. The only concern that slows down a large-scale implementation is energy consumption and related investment and operational costs. A combination of EAOPs with biological treatment is an interesting solution. In such a synergetic way, removal efficiency is maximized, while minimizing operational costs. The goal of this review is to present cutting-edge research for treatment of three common and problematic pollutants and effluents: dyes and textile wastewater, olive processing wastewater, and pharmaceuticals and hospital wastewater. Each of these types is regarded in terms of recent scientific research on individual electrochemical, individual biological and a combined synergetic treatment. 相似文献
235.
Geoff Wilson Giovanni Quaranta Claire Kelly Rosanna Salvia 《Journal of Environmental Planning and Management》2016,59(3):518-537
This study analyses social, economic and political “lock-ins” for understanding community resilience and land degradation. The study focuses on lock-ins from within communities, using four case study communities in Italy affected by land degradation. The analysis highlights the complex interrelationships between various lock-ins, and suggests that the communities are on declining resilience pathways that may lead to increasing difficulties in addressing land degradation issues in future. 相似文献
236.
Lonati G Ozgen S Ripamonti G Cernuschi S Giugliano M 《Journal of the Air & Waste Management Association (1995)》2011,61(11):1273-1280
Measurement campaigns for airborne particles along a pedestrian route in the city center of Milan were performed by means of a portable instrument consisting of an optical particle counter and a global positioning system (GPS) signal receiver. Based on the size-resolved particle number concentration data and on proper density factors experimentally determined for Milan urban area, the mass concentrations were calculated in terms of particulate matter with aerodynamic diameters < or =10 microm (PM10), < or =2.5 pm (PM2.5), and < or =1 microm (PM1). Besides directly measuring the personal exposure to PM throughout the route, the measurement campaigns pointed out small spatial and temporal variations of the concentration ranges in the different urban microenvironments visited along the route as well as very peculiar features of the particles levels in the underground subway. These findings suggested that the personal exposure of pedestrians in the city center could be estimated by simply taking into account the exposure at the open air and in the subway. The comparison between measured and calculated exposures according to the microenvironment-based estimation results in reasonable accordance, even though the estimations tend to slightly underestimate (12%) the actual measured exposure. 相似文献
237.
Tommaso Chiti Giacomo Certini Lucia Perugini Giovanni Mastrolonardo Dario Papale Riccardo Valentini 《Regional Environmental Change》2011,11(2):371-376
The purpose of the present work is to asses the possibility of detecting changes in soil organic carbon (SOC) at the end of
the 5-years of the first Commitment Period (CP) of the Kyoto Protocol of the United Nation’s Framework Convention on Climate
Change (1 January, 2008–31 December, 2012), by both direct measurement and the use of an opportunely evaluated SOC model,
CENTURY. The investigated soil is young, developed since 28 years on virtually C-free spoil banks and under the influence
of two managed forest stands, one a mix of English oak (Quercus robur L.) and Italian alder (Alnus cordata Loisel.) and the other pure English oak. The SOC stock of either stand was monitored since the time the stands were planted
in 1981, and it was used together with other parameters for the model evaluation, while the future projections for the end
of the first (2012) and second (2017) CP were made according to two extreme IPCC climatic scenarios: A1F1, the most dramatic,
and B2, among the less impacting. Direct SOC measurements performed at the beginning and at the end of a time frame equivalent
to a commitment period (2004–2008) had not shown significant variations in either stands. Compared to the 2008 SOC stock,
in both stands the model shows variations at the end of the first CP from 0.7 to 1.8 Mg C ha−1 for the A1F1 scenario and from 0.3 to 1.7 Mg C ha−1 for the B2. These variations are within the standard deviations of the C stocks measured in 2008. On the contrary, at the
end of the second CP, the modelled SOC increments range from 2.5 to 3.6 Mg C ha−1 (A1F1) or from 1.9 to 3.4 Mg C ha−1 (B2), indicating the possibility to detect the SOC changes by direct measurement, since the values well agree with the minimum
detectable variation estimated for both sites in 3.3–4.5 Mg C ha−1. This work shows that SOC stock changes measured directly in the field can be minimal at the end of both CPs, and that CENTURY
well simulates the SOC dynamics of the stands. The use of such a model, validated at long-term experimental sites, hence represents
an effective tool for estimating future changes in SOC amounts in support of direct measurements when a short period of time,
such as the CP, is considered. 相似文献
238.
Gunther Umlauf Eugen H. Christoph Laura Lanzini Risto Savolainen Helle Skejo Giovanni Bidoglio Joachim Clemens Heiner Goldbach Heinrich Scherer 《Environmental science and pollution research international》2011,18(3):461-470
Background, aim, and scope
Biowaste contains compounds of agricultural value such as organic carbon, nutrients, and trace elements and can partially replace mineral fertilizer (MIN) and improve the physical properties of the soil. However, the obvious benefits of land spreading need to be carefully evaluated against potential adverse effects on the environment and human health. Environmental contamination resulting from biowaste application is one of the key variables when assessing cost/benefits. This study provides data on the resulting concentration of polychlorinated dibenzodioxins and dibenzofurans (PCDD/Fs) and dioxin-like polychlorinated biphenyls (DL-PCBs) in the soil column as a result of the different types of fertilizers. 相似文献239.
Yuxin Lu Xiang Li Cagnetta Giovanni Bo Wang 《Frontiers of Environmental Science & Engineering》2023,17(7):89