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排序方式: 共有57条查询结果,搜索用时 15 毫秒
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Loffredo Elisabetta Taskin Eren 《Environmental science and pollution research international》2017,24(23):19159-19166
Environmental Science and Pollution Research - The present study deals with the use of low-cost plant-derived materials, namely a biochar, spent coffee grounds, spent tea leaves, and a compost... 相似文献
3.
Neri M Giammanco S Ferrera E Patanè G Zanon V 《Journal of environmental radioactivity》2011,102(9):863-870
This study concerns measurements of radon and thoron emissions from soil carried out in 2004 on the eastern flank of Mt. Etna, in a zone characterized by the presence of numerous seismogenic and aseismic faults. The statistical treatment of the geochemical data allowed recognizing anomaly thresholds for both parameters and producing distribution maps that highlighted a significant spatial correlation between soil gas anomalies and tectonic lineaments. The seismic activity occurring in and around the study area during 2004 was analyzed, producing maps of hypocentral depth and released seismic energy. Both radon and thoron anomalies were located in areas affected by relatively deep (5-10 km depth) seismic activity, while less evident correlation was found between soil gas anomalies and the released seismic energy. This study confirms that mapping the distribution of radon and thoron in soil gas can reveal hidden faults buried by recent soil cover or faults that are not clearly visible at the surface. The correlation between soil gas data and earthquakes depth and intensity can give some hints on the source of gas and/or on fault dynamics. 相似文献
4.
Giansoldati V Tassi E Morelli E Gabellieri E Pedron F Barbafieri M 《Chemosphere》2012,87(10):1119-1125
In this study we evaluated the effect of different fertilizer treatments on Brassica plants grown on boron-contaminated sediments. Experiments were conducted in the laboratory and on the lysimeter scale. At laboratory scale (microcosm), five different fertilizers were tested for a 35-d period. On the lysimeter scale, nitrogen fertilization was tested at three different doses and plants were allowed to grow until the end of the vegetative phase (70 d). Results showed that nitrogen application had effectively increased plant biomass production, while B uptake was not affected. Total B phytoextracted increased three-fold when the highest nitrogen dose was applied. Phytotoxicity on Brassica was evaluated by biochemical parameters. In plants grown in unfertilized B-contaminated sediments, the activity of antioxidant enzymes superoxide dismutase (SOD), ascorbate peroxidase (APX) and pyrogallol peroxidase (PPX) increased, whereas catalase (CAT) decreased with respect to control plants. Addition of N progressively mitigated the alteration of enzymatic activity, thus suggesting that N can aid in alleviating B-induced oxidative stress. SOD activity was restored to control levels just at the lowest N treatment, whereas the CAT inhibition was partially restored only at the highest one. N application also lowered the B-induced increase in APX and PPX activities. Increased glutathione reductase activity indicated the need to restore the oxidative balance of glutathione. Data also suggest a role of glutathione and phytochelatins in B defense mechanisms. Results suggest that the nitrogen fertilizer was effective in improving B phytoextraction by increasing Brassica biomass and by alleviating B-induced oxidative stress. 相似文献
5.
Air pollution is one of the primary concerns of our society for its effect on human health and the environment. Among the policy measures that can be put in place to limit air pollutant emissions, end-of-pipe technologies and/or regulatory instruments may be implemented through legislative acts. Also, equally important are behavioural measures, requiring citizens’ active involvement. The success of any measure to limit pollutant emissions requires the acceptance by the citizens that, in turn, implies a correct perception of the main pollutant emission drivers. We present here the comparison between the public perception of air pollution sources and the real-world situation through a survey carried out in seven European countries and involving 16 101 respondents. Our study shows a dramatic underestimation of the contribution of the agri-food sector to air pollution. This result is common to all respondents in the seven countries examined and only to a small extent depends on gender, age and socio-economic status of the respondents. 相似文献
6.
Foliar response of an Ailanthus altissima clone in two sites with different levels of ozone-pollution 总被引:2,自引:0,他引:2
Gravano E Giulietti V Desotgiu R Bussotti F Grossoni P Gerosa G Tani C 《Environmental pollution (Barking, Essex : 1987)》2003,121(1):137-146
Potted plants of Ailanthus altissima, produced by root suckers coming from a single symptomatic mother tree, were placed in two sites in the vicinity of Florence (central Italy), with different levels of ozone pollution. These plants were kept in well watered conditions during the period May-September 1999. In the high pollution site (Settignano-SET) the level of ozone exposure (AOT40) reached at the end of the season a value of 31 ppm h, whereas in the "low pollution" site (Cascine-CAS) the exposure to ozone was 11 ppm h. A. altissima showed foliar symptoms in early July at SET and in the second half of July at CAS when exposure values reached 5 ppm h at both sites. However, at the end of August the conditions of the plantlets were rather similar in both sites. Microscopic and ultrastructural analysis were performed at the first onset of symptoms at SET (the CAS leaflets were asymptomatic). Observing the upper leaf surface where the brown stipples were visible, it was found that the cells of the palisade mesophyll displayed loss of chlorophyll and the organelles in the cytoplasm were damaged. Swelling of thylacoids was observed in the CAS leaflets, thus indicating the possible onset of a pre-visual damage. The injured cells were separated from the healthy ones by a layer of callose. We conclude that the sensitivity to ozone of A. altissima leaves is related to its leaf structure, with low leaf density and large intercellular spaces. Cell walls, as well as acting as mechanical barriers against the spread of ozone within the cell, also provide important detoxifying processes. 相似文献
7.
Canepa P Cauglia F Caviglia P Chelossi E 《Environmental science and pollution research international》2003,10(4):217-220
The mill waste water holds a large amount of polyphenols, preventing the biodegradation processes because of their inhibitory action on microbial growth. Thus, its disposal represents an environmental problem for the great olive oil producing countries in the Mediterranean area. In this work, we present the preliminary results from the application of a photo-oxidative process on mill waste water to evaluate the organic matter degradation potential and the biodegradability of the treated residue. The total organic carbon is reduced up to 35% after 6 hours but the cost-effectiveness is unfavourable. In contrast, the aim of toxicity reduction is less expensive and shows good applicable chances; after 2 h, the polyphenols concentration drops by 60%. 相似文献
8.
Mancini Pamela Bonanno Ferraro Giusy Suffredini Elisabetta Veneri Carolina Iaconelli Marcello Vicenza Teresa La Rosa Giuseppina 《Food and environmental virology》2020,12(1):68-74
Food and Environmental Virology - Salivirus (SalV) is a newly discovered virus associated to acute gastroenteritis in humans. In Italy, its prevalence and genetic diversity is unknown. To reduce... 相似文献
9.
Resi Mencacci Elisabetta De Bernardi Alessandro Sale Johann R. E. Lutjeharms Paolo Luschi 《Marine Biology》2010,157(2):339-349
The routes of five satellite-tracked loggerhead turtles (Caretta caretta), subjected to an experimental translocation away from their usual migratory routes, have been analysed in relation to the
concurrent oceanographic conditions. Remote sensing data on sea surface temperature and height anomalies, as well as trajectories
of surface drifters were used, to get simultaneous information on the currents encountered by the turtles during their long-range
oceanic movements. Turtles mostly turned out to move in the same direction as the main currents, and their routes were often
influenced by circulation features they encountered. A comparison between turtle ground speeds with that of drifters shows
that in several instances, the turtles did not drift passively with the currents but contributed actively to the overall movement.
Two turtles embarked on an oceanic crossing, probably induced by seasonal changes in surface temperatures, a crossing that
was largely determined by the main currents existing in the area. 相似文献
10.
Picchi Carolina Giorgetti Lucia Morelli Elisabetta Landi Marco Rosellini Irene Grifoni Martina Franchi Elisabetta Petruzzelli Gianniantonio Barbafieri Meri 《Environmental science and pollution research international》2022,29(11):15983-15998
Environmental Science and Pollution Research - Phytoremediation represents a natural method to remove contaminants from soil. The goal of this study was to investigate the potential of... 相似文献