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排序方式: 共有117条查询结果,搜索用时 31 毫秒
111.
Gabriele LanducciAlessandro Tugnoli Valentina BusiniMarco Derudi Renato RotaValerio Cozzani 《Journal of Loss Prevention in the Process Industries》2011,24(4):466-476
On June 29th, 2009 the derailment of a freight train carrying 14 LPG (Liquefied Petroleum Gas) tank-cars near Viareggio, in Italy, caused a massive LPG release. A gas cloud formed and ignited triggering a flash-fire that resulted in 31 fatalities and in extended damages to residential buildings around the railway line. The vulnerability of the area impacted by the flash-fire emerged as the main factor in determining the severity of the final consequences. Important lessons learnt from the accident concern the need of specific regulations and the possible implementation of safety devices for tank-cars carrying LPG and other liquefied gases under pressure. Integrated tools for consequence assessment of heavy gas releases in urban areas may contribute to robust decision making for mitigation and emergency planning. 相似文献
112.
113.
Bromilow RH de Carvalho RF Evans AA Nicholls PH 《Journal of environmental science and health. Part. B》2006,41(1):1-16
The distribution of eight pesticides between sediment and water held in 1-m square outdoor stainless-steel mesocosms was studied, simulating both spring and autumn applications. Pesticide behavior was largely independent of rate of application, chosen in the first three experiments to be 4% or 40% of the normal field rate so as to simulate spray drift or partial overspray. Following application by spray to the water surface, all compounds were uniformly distributed in the 30 cm of overlying water within 24 h. The lipophilic pesticides (chlorpyrifos, pendimethalin, and permethrin) moved into the sediment within 30 d but with little penetration below 2.5 cm depth, and only chlorpyrifos persisted beyond 30 d. The mass balance of these lipophilic pesticides at 1 d was only 26.3% to 61%, with these initial losses attributed to processes such as volatilization. Isoproturon and chlorotoluron persisted for around 120 d, remaining largely in the overlying water with a maximum of 15% in the sediment. Permethrin and difenoconazole were much less persistent in these mesocosms, with very little ever found in the sediment in contrast to previous findings in laboratory-scale stirred systems as used in registration tests. The polar mecoprop remained almost entirely in the water phase and was rapidly degraded. Two further experiments examined also the influence of the submerged plant Lagarosiphon major in the mesocosms, the first experiment simulating a full-rate overspray with chlorpyrifos and linuron and the second a repeat in spring of the earlier main autumn experiment. Both chlorpyrifos and linuron applied in the autumn were quite persistent over the winter period, with about 20% still remaining after 152 d. Uptake into L. major was correlated with pesticide lipophilicity, but was only a small factor compared to uptake by sediment and degradation in these lightly vegetated systems. 相似文献
114.
Current status and perspectives of accelerated carbonation processes on municipal waste combustion residues 总被引:1,自引:0,他引:1
Costa G Baciocchi R Polettini A Pomi R Hills CD Carey PJ 《Environmental monitoring and assessment》2007,135(1-3):55-75
The increasing volumes of municipal solid waste produced worldwide are encouraging the development of processes to reduce
the environmental impact of this waste stream. Combustion technology can facilitate volume reduction of up to 90%, with the
inorganic contaminants being captured in furnace bottom ash, and fly ash/APC residues. The disposal or reuse of these residues
is however governed by the potential release of constituent contaminants into the environment. Accelerated carbonation has
been shown to have a potential for improving the chemical stability and leaching behaviour of both bottom ash and fly ash/APC
residues. However, the efficacy of carbonation depends on whether the method of gas application is direct or indirect. Also
important are the mineralogy, chemistry and physical properties of the fresh ash, the carbonation reaction conditions such
as temperature, contact time, CO2 partial pressure and relative humidity. This paper reviews the main issues pertaining to the application of accelerated carbonation
to municipal waste combustion residues to elucidate the potential benefits on the stabilization of such residues and for reducing
CO2 emissions. In particular, the modification of ash properties that occur upon carbonation and the CO2 sequestration potential possible under different conditions are discussed. Although accelerated carbonation is a developing
technology, it could be introduced in new incinerator facilities as a “finishing step” for both ash treatment and reduction
of CO2 emissions. 相似文献
115.
de Oliveira Paulo Renato Souza Trugilho Paulo Fernando de Oliveira Tiago Jose Pires 《Environmental science and pollution research international》2022,29(6):8559-8559
Environmental Science and Pollution Research - A Correction to this paper has been published: 10.1007/s11356-021-16529-z 相似文献
116.
de Oliveira Paulo Renato Souza Trugilho Paulo Fernando de Oliveira Tiago José Pires 《Environmental science and pollution research international》2022,29(6):8549-8558
Environmental Science and Pollution Research - Agro-industries, leveraged by the high demand of acai products, promote environmental impact through the generation of wastes in several locals in... 相似文献
117.
Pablo V. Prieto Jacob J. Bukoski Felipe S. M. Barros Hawthorne L. Beyer Alvaro Iribarrem Pedro H. S. Brancalion Robin L. Chazdon David B. Lindenmayer Bernardo B. N. Strassburg Manuel R. Guariguata Renato Crouzeilles 《Conservation biology》2022,36(3):e13842
Natural forest regrowth is a cost-effective, nature-based solution for biodiversity recovery, yet different socioenvironmental factors can lead to variable outcomes. A critical knowledge gap in forest restoration planning is how to predict where natural forest regrowth is likely to lead to high levels of biodiversity recovery, which is an indicator of conservation value and the potential provisioning of diverse ecosystem services. We sought to predict and map landscape-scale recovery of species richness and total abundance of vertebrates, invertebrates, and plants in tropical and subtropical second-growth forests to inform spatial restoration planning. First, we conducted a global meta-analysis to quantify the extent to which recovery of species richness and total abundance in second-growth forests deviated from biodiversity values in reference old-growth forests in the same landscape. Second, we employed a machine-learning algorithm and a comprehensive set of socioenvironmental factors to spatially predict landscape-scale deviation and map it. Models explained on average 34% of observed variance in recovery (range 9–51%). Landscape-scale biodiversity recovery in second-growth forests was spatially predicted based on socioenvironmental landscape factors (human demography, land use and cover, anthropogenic and natural disturbance, ecosystem productivity, and topography and soil chemistry); was significantly higher for species richness than for total abundance for vertebrates (median range-adjusted predicted deviation 0.09 vs. 0.34) and invertebrates (0.2 vs. 0.35) but not for plants (which showed a similar recovery for both metrics [0.24 vs. 0.25]); and was positively correlated for total abundance of plant and vertebrate species (Pearson r = 0.45, p = 0.001). Our approach can help identify tropical and subtropical forest landscapes with high potential for biodiversity recovery through natural forest regrowth. 相似文献