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71.
The effectiveness of the enforcement of the ISM-Code and the examination of its role in the distribution of causes of shipping accidents between human and non-human error was studied. All accidents involving Greek-flagged ships from 1995 to 2006, a time-scale which spans over the pre- and post-ISM period in navigational regions of restricted waters, were analyzed.The accident data was processed through a classification tree analysis which enabled the classification of various accident factors. The analysis revealed that although the human error maintained its position as the dominant factor in shipping accidents, there is also substantial evidence in support of the ISM-Code effective control over shipping accidents during the post-ISM period. The implementation of the ISM-Code led to an overall reduction of human-induced accidents in total. Furthermore, in terms of location, the ISM-Code improved the human-induced accident record within restricted waters.Conclusively, the ISM-Code constitutes an effective policy measure for shipping safety. The results of the classification tree analysis reported in the present work can be used by decision makers in companies and international organizations to build knowledge-based expert systems and augment their information in the field of safety policy and management. 相似文献
72.
Geczo Alexandra Giannakoudakis Dimitrios Andreas Triantafyllidis Konstantinos Elshaer Mohammed Ragab Rodríguez-Aguado Elena Bashkova Svetlana 《Environmental science and pollution research international》2021,28(42):58969-58982
Environmental Science and Pollution Research - Activated carbons prepared from cashew nut shells by chemical activation with phosphoric acid were tested for the removal of acetaminophen. It was... 相似文献
73.
Mavriou Zografina Alexandropoulou Ioanna Melidis Paraschos Karpouzas Dimitrios G. Ntougias Spyridon 《Environmental science and pollution research international》2021,28(4):3774-3786
Environmental Science and Pollution Research - The large quantities and the persistent nature of fungicide wastewaters have increased the efforts towards a sustainable technological solution. In... 相似文献
74.
Charvalas Georgios Solomou Alexandra D. Giannoulis Kyriakos D. Skoufogianni Elpiniki Bartzialis Dimitrios Emmanouil Christina Danalatos Nicholaos G. 《Environmental science and pollution research international》2021,28(4):3858-3863
Environmental Science and Pollution Research - Phytoremediation is an effective technique for the processing of contaminated soil and for sequestering environmental contaminants such as heavy... 相似文献
75.
Galiatsatou P Metaxas M Arapoglou D Kasselouri-Rigopoulou V 《Waste management (New York, N.Y.)》2002,22(7):803-812
A series of activated carbons prepared by a two-step steam activation of olive stone and solvent extracted olive pulp (SEOP) have been used in an attempt to investigate the total phenol removal and chemical oxygen demand (COD) decrease in olive mill waste water (OMWW). The temperature of carbonization and activation were kept constant at 850 and 800 degrees C, respectively. One of the carbons was prepared by a single-step process at 800 degrees C. Activated carbons have been characterized by adsorption of N2 at 77 K and mercury porosimetry. Their iodine values were also determined. Surface oxides of activated carbons were determined using the Boehm's method. The porosity development and the surface chemistry of carbons were correlated to increasing removal ability of organic molecules. Kinetics of adsorption was evaluated by applying the Lagegren model while adsorption isotherm data were fitted to Langmuir model. Mesoporosity seems to be the key factor for total phenol removal while micoporosity controls the adsorption of total organics as expressed by the COD decrease in OMWW. For carbons with similar structure, the adsorption of phenols or total organics might be affected by the presence of carbonyls. 相似文献
76.
Dimitrios Sotiropoulos Nestoras Kolovos 《Journal of the Air & Waste Management Association (1995)》2013,63(7):1042-1049
Abstract Emitted pollutants from the Agios Dimitrios lignite-fired power plant in northern Greece show a very strong linear correlation with the free calcium oxide content of the lignite ash. Dust (fly ash) emissions are positively correlated to free calcium oxide content, whereas sulfur dioxide (SO2) emissions are negatively correlated. As a result, at present, the Agios Dimitrios Power Plant operates very strictly within the legislative limits on atmospheric particulate emission. In the present study, the factors to be considered in assessing the impact of lignite combustion on the environment are presented and evaluated statistically. The ash appears to have a remarkable SO2 natural dry scrubbing capability when the free calcium oxide content ranges between 4 and 7%. Precipitator operating problems attributable to high ash resistivity can be overcome by injecting sulfur trioxide to reduce the ash resistivity, with, of course, a probable increase in operating costs. 相似文献
77.
Aikaterini Sakellari Sotirios Karavoltsos Dimitrios Theodorou Manos Dassenakis Michael Scoullos 《Environmental monitoring and assessment》2013,185(4):3383-3395
The concentrations of Cd, Cu and Zn in both the whole soft tissue and separate organs (gills, mantle, muscle and digestive gland) of wild bivalves (Mytilus galloprovincialis, Pinctada radiata, Venus verrucosa and Callista chione) from three different coastal microenvironments of Greece were monitored from 2003 to 2004. In parallel, by employing appropriate analytical protocols for metal partitioning, the labile fraction of the metals was determined in the dissolved phase, suspended particulate matter and sediments. Differences in the metal levels were detected both among the study areas as well as among the bivalves examined. Significant bioaccumulation was demonstrated regarding Zn in M. galloprovincialis specimens from the highly industrialized Gulf of Elefsis and Cd in P. radiata and V. verrucosa from the Maliakos Gulf, which is influenced by extended agricultural activity occurring at the neighbouring area and a river outflow. Data of the metal levels in the various environmental phases were correlated with their concentrations in bivalves’ tissues. The clear relationships obtained in many cases among the labile metal concentrations and the bioaccumulated concentrations in bivalves point out that the labile fraction of a metal is the most bioavailable. The lack of positive correlation for C. chione confirms the occurrence of effective mechanisms of internal regulation of metal concentrations. 相似文献
78.
Dimitrios Melas Ioannis Kioutsioukis Ioannis C. Ziomas 《Journal of the Air & Waste Management Association (1995)》2013,63(4):495-501
ABSTRACT In this paper, an attempt is made for the 24-hr prediction of photochemical pollutant levels using a neural network model. For this purpose, a model is developed that relates peak pollutant concentrations to meteorological and emission variables and indexes. The analysis is based on measurements of O3 and NO2 from the city of Athens. The meteorological variables are selected to cover atmospheric processes that determine the fate of the airborne pollutants while special care is taken to ensure the availability of the required input data from routine observations or forecasts. The comparison between model predictions and actual observations shows a good agreement. In addition, a series of sensitivity tests is performed in order to evaluate the sensitivity of the model to the uncertainty in meteorological variables. Model forecasts are generally rather insensitive to small perturbations in most of the input meteorological data, while they are relatively more sensitive in changes in wind speed and direction. 相似文献
79.
Georgios Karavalakis Dimitrios Ampatzoglou Stamoulis Stournas Evangelos Bakeas 《Environmental pollution (Barking, Essex : 1987)》2010,158(5):1584-1594
This study explores the impact of five different types of methyl esters on polycyclic aromatic hydrocarbon (PAH), nitrated-PAH and oxygenated PAH emissions. The measurements were conducted on a chassis dynamometer, according to the European regulation. Each of the five different biodiesels was blended with EN590 diesel at a proportion of 10-90% v/v (10% biodiesel concentration). The vehicle was a Euro 3 compliant common-rail diesel passenger car. Emission measurements were performed over the NEDC and compared with those of the real traffic-based Artemis driving cycles. The experimental results showed that the addition of biodiesel led to some important increases in low molecular-weight PAHs (phenanthrene and anthracene) and to both increases and reductions in large PAHs which are characterised by their carcinogenic and mutagenic properties. Nitro-PAHs were found to reduce with biodiesel whereas oxy-PAH emissions presented important increases with the biodiesel blends. The impact of biodiesel source material was particularly clear on the formation of PAH compounds. It was found that most PAH emissions decreased as the average load and speed of the driving cycle increased. Cold-start conditions negatively influenced the formation of most PAH compounds. A similar trend was observed with particulate alkane emissions. 相似文献
80.
Dimitrios I. Myronidis Dimitrios A. Emmanouloudis Ioannis A. Mitsopoulos Evangelos E. Riggos 《Environmental Modeling and Assessment》2010,15(4):239-250
Wildland fires are one of the more severe disturbances for natural ecosystems in the Mediterranean basin and can become a
critical factor in the process of soil erosion. A quantitative assessment of soil erosion is needed in order to form an assessment
on the extent and magnitude of post-fire soil erosion potential and to assess the effectiveness of the rehabilitation treatment.
On 21 August 2006, a large wildland fire occurred in the Kassandra Peninsula in northern Greece, which burned one fifth of
the Peninsula. After the fire, in order to protect the soil against erosion, the Forest Services applied a hillslope rehabilitation
treatment of contour-felled logs and branch piles. In this paper, we report quantitative estimation of the wildland fire and
erosion control treatment on soil erosion potential. The coupling of the Universal Soil Loss Equation and the Geographical
Information Systems was implemented and the erosion potential was found to be 2.8 t/ha/year pre-fire, 29.5 t/ha/year post-fire,
and 21.3 t/ha/year after rehabilitation treatment. The model can successfully contribute in the planning of the rehabilitation
treatment but it cannot be used in the quantification of the soil loss after the application of the erosion control measures.
The comparisons between the results of the three cases indicate the importance of the immediate erosion control measures in
order to mitigate soil loss and restore the natural environment. 相似文献