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61.
Alessandro Fumagalli Bruno Faggion Matteo Ronchini Giorgio Terzaghi Marco Lanfranchi Nicola Chirico Laura Cherchi 《Environmental science and pollution research international》2010,17(3):665-673
Background, aim, and scope
The widespread use of some platinum group elements as catalysts to minimize emission of pollutants from combustion engines produced a constantly growing increase of the concentration of these elements in the environment; their potential toxicological properties explain the increasing interest in routine easy monitoring. We have found that leaves of Prunus laurus cerasus are efficient collectors of particulate with a dimension <60–80 μm, and a simple and reliable procedure was developed to reveal traces of platinum, palladium, and rhodium released from automotive catalysts. The analysis of the dust deposited on the foliage is a direct indicator of traffic pollution. 相似文献62.
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65.
Eadsforth Charles Austin Tom Bouvy Alain Cassani Giorgio DeFerrer Juanantonio Hager Claus-Dierk Schowanek Diederik Taeger Klaus Willing Andreas 《Environmental Sciences Europe》2013,25(1):1-9
The project focuses on the efficiency of combined technologies to reduce the release of micropollutants and bacteria into surface waters via sewage treatment plants of different size and via stormwater overflow basins of different types. As a model river in a highly populated catchment area, the river Schussen and, as a control, the river Argen, two tributaries of Lake Constance, Southern Germany, are under investigation in this project. The efficiency of the different cleaning technologies is monitored by a wide range of exposure and effect analyses including chemical and microbiological techniques as well as effect studies ranging from molecules to communities. 相似文献
66.
Giorgio Bertanza Matteo Canato Giuseppe Laera Mentore Vaccari Magdalena Svanström Sara Heimersson 《Environmental science and pollution research international》2017,24(21):17383-17393
A holistic assessment procedure has been used in this study for comparing conventional activated sludge (CAS) and membrane bioreactor (MBR) processes for the treatment of municipal wastewater. Technical, social, administrative, economic and environmental impacts have been evaluated based on 1 year of operational data from three full-scale lines (one MBR and two CAS) working in parallel in a large municipal treatment plant. The comparative assessment evidences a slight advantage of the conventional process in the studied case, essentially due to lower costs, complexity and energy consumption. On the other hand, the MBR technology has a better social acceptance and similar overall environmental footprint. Although these results are influenced by site-specific parameters and cannot be generalized, the assessment procedure allowed identifying the most important factors affecting the final scores for each technology and the main differences between the compared technologies. Local conditions can affect the relative importance of the assessed impacts, and the use of weighting factors is proposed for better tailoring the comparative assessment to the local needs and circumstances. A sensitivity analysis on the weighted final scores demonstrated how local factors are very important and must be carefully evaluated in the decision making process. 相似文献
67.
Anabella Covazzi Harriague Giancarlo Albertelli Adrianna Bonomi Mauro Fabiano Tecla Zunini-Sertorio 《Chemistry and Ecology》2007,23(3):263-277
Suspended particulate matter, zooplankton, and macrobenthos dynamics were investigated in a shallow area of the Ligurian Sea (north-west Mediterranean) characterized by wide temporal variability over an annual cycle. As indicated by multivariate analyses, the seasonal dynamics can be summarized as follows: (1) a late winter-early spring phytoplankton bloom followed by high zooplankton and macrobenthos densities during the spring months; (2) low-quality particulate suspended matter in summer, and an increase in the importance of zooplankton taxa with a wide range of feeding strategies, a decrease in macrofaunal abundance, and an increase in deposit-feeders and predators; and (3) a second phytoplankton bloom in autumn, followed by an increase in copepod density and a low macrofaunal abundance. In conclusion, pelagic and benthic communities in the coastal area of the Ligurian Sea mainly seem to be controlled bottom-up. Our results suggest that the quality of the particulate organic matter may play an important role in determining the temporal changes of both plankton and benthic assemblages, while the direct influence of other environmental features (such as sediment grain size) is relevant only for some macrobenthic taxa (e.g. crustaceans). 相似文献
68.
Alessandra Pugnetti Francesco Acri Luisa Alberighi Donato Barletta Mauro Bastianini Fabrizio Bernardi-Aubry Andrea Berton Franco Bianchi Giorgio Socal Cecilia Totti 《Chemistry and Ecology》2004,20(6):399-409
Taxonomic composition, biomass, primary production and growth rates of the phytoplankton community were studied in two stations in the NW Adriatic Sea on a seasonal basis, in areas characterized by differing hydrological and trophic conditions. The main differences between the two stations were quantitative rather than qualitative, most phytoplankton species being common to both stations. The effects of differing nutrient concentrations and plume spreading were evident. Biomass and primary production rates were significantly higher in the coastal station (S1), and the phytoplankton distribution in the water column was markedly stratified in S1 and more even in the offshore station (S3). However, chlorophyll a specific production, potential growth rate and production efficiencies were very similar in both stations, even when phosphorus concentrations were limiting. A discrepancy between potential and actual growth rate was observed: as a feature common to both stations, comparisons between potential and actual growth rates revealed that little carbon produced by phytoplankton accumulated as algal biomass; therefore, very high loss rates were estimated. 相似文献
69.
Food Community Networks as Leverage for Social Embeddedness 总被引:1,自引:0,他引:1
Giuseppina Migliore Giorgio Schifani Giovanni Dara Guccione Luigi Cembalo 《Journal of Agricultural and Environmental Ethics》2014,27(4):549-567
Social embeddedness, defined as the interaction of economic activities and social behavior, is used in this study as a conceptual tool to describe the growing phenomenon of food community networks (FCNs). The aim in this paper was to map the system of relations which the FCNs develop both inside and outside the network and, from the number of relations, it was inferred the influence of each FCN upon the formation of new socially embedded economic realities. A particular form of FCN was taken under consideration: solidarity purchase groups (SPGs). Performed with the aid of social network analysis on a sample of SPGs in Sicily (a region in southern Italy), the study allowed us to identify a relational (internal) social embeddedness, in which groups of consumers and farmers are directly influenced by reciprocal interactions, giving rise to more or less numerous links of reciprocity and trust depending on the number of interactions. It was also identified a structural (external) social embeddedness, generated by the nature of relations that the SPGs undertake with the various social actors. From the results of our analysis it emerges that SPGs lie at the intersection of many social realities, influencing them and in turn being influenced by such realities. We highlight the major role played by consumer and environmental associations in affecting the phenomenon of social embeddedness. 相似文献
70.
Francesca Gringeri Pantano Pier Giorgio Nicoletti MARIO PARISE 《Environmental management》2002,29(1):116-131
Old, large, and dormant landslides were unexpectedly found in southeastern Sicily, a territory of known seismicity but commonly
considered as landslide-free or almost so. Purposely undertaken investigations revealed that: (1) these landslides are scarcely
compatible with the local geoclimatic environment; (2) they usually show low-angle basal shear surfaces, despite the fact
that the properties of the forming material are generally good; (3) they fulfill the known relationships between earthquake
magnitude and epicenter–landslide distance; (4) sources coeval with high-energy historical earthquakes occurred in 1169, 1542
and 1693 testify to the occurrence of earthquake-triggered landsliding; and (5) documentary material (presented here for the
first time) correlates with certainty a specific landslide to the 1693 earthquake. This geological and historical evidence,
accompanied by the absence of contrasting elements, leads us to conclude that these landslides are earthquake-triggered.
Because of their typological and geometrical characteristics, nearly all landslides can be reactivated, which has serious
implications in terms of hazard, particularly with respect to lines of communication. Obviously, every action aimed at preventing
or mitigating risks must start from the awareness of the causative processes, a condition substantially unsatisfied at the
moment in SE Sicily. The paper concludes by emphasizing the opportunity not to trust excessively beliefs that, although shared,
have never been really checked. 相似文献