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51.
Eric Lichtfouse Valérie Sappin-Didier Laurence Denaix Giovanni Caria Laure Metzger Najat Amellal-Nassr Jens Schmidt 《Environmental Chemistry Letters》2005,3(3):140-144
We studied polycyclic aromatic hydrocarbons (PAHs) in crop soils amended with 1000 tonnes dry weight of sewage sludges per
10,000 m2 from 1974 to 1992, then after sludges addition from 1993 to 1999. The absence of variations of total PAHs levels of control
soils, averaging at 123 μg/Kg, shows the absence of horizontal contamination. During sludges addition, the total PAHs levels
in amended soils increased from 232 to 402 μg/Kg. Seven years after sludges addition, it decreased to 275 μg/Kg, which is
still more than twice –the levels of control soils. This finding shows that sludges PAHs are preserved in crop soils for long
periods of time, on a human scale. 相似文献
52.
Paolo Casale Daniela Freggi Roberto Basso Carola Vallini Roberto Argano 《Marine Biology》2007,152(5):1039-1049
Sea turtle tagging carried out in Italy in the period 1981–2006 resulted in 125 re-encounters of loggerhead turtles (Caretta caretta) after a mean of 2.5 years, from different marine areas in the Mediterranean. At first finding, turtles ranged 25–83 cm of
curved carapace length. Data were analyzed according to size, area, habitat type, season, in order to provide indication of
movement patterns. When integrated with other information, results indicate that: (1) a part of turtles in the oceanic stage
show a nomad behavior with movements among different oceanic areas; (2) another part show fidelity to an oceanic area; (3)
turtles in the neritic stage show fidelity to neritic areas, and once settled to one area, change to other neritic areas is
unlikely; (4) nomad oceanic turtles are significantly larger than sedentary ones, and also larger than turtles found in neritic
areas; it is hypothesized that these could be Atlantic turtles that eventually leave the Mediterranean; (5) ecological transition
from oceanic to neritic habitats occurs at a wide range of sizes, and some turtles may have a very brief oceanic stage; (6)
turtles in the oceanic stage are more likely to recruit to neritic areas close to their oceanic areas than to distant ones;
(7) part of turtles from some Mediterranean nesting beaches might frequent a relatively limited area range, including both
oceanic and neritic areas; (8) in most of the Mediterranean, latitudinal seasonal migrations are unlikely. A general model
of movement patterns of loggerhead turtles in the Mediterranean is proposed. 相似文献
53.
Maria Grazia Amoroso Antonio Luca Langellotti Valeria Russo Anna Martello Marina Monini Ilaria Di Bartolo Giovanni Ianiro Denise Di Concilio Giorgio Galiero Giovanna Fusco 《Food and environmental virology》2020,12(1):48-57
Bivalve mollusks as filter-feeders concentrate in their digestive tissue microorganisms likely present in the harvesting water, thus becoming risky food especially if consumed raw or poorly cooked. To eliminate bacteria and viruses eventually accumulated, they must undergo a depuration process which efficacy on viruses is on debate. To better clarify the worth of the depuration process on virus elimination from mussels, in this study we investigated rotavirus kinetics of accumulation and depuration in Mytilus galloprovincialis experimentally contaminated. Depuration process was monitored for 9 days and virus residual presence and infectivity were evaluated by real time quantitative polymerase chain reaction, cell culture and electron microscopy at days 1, 2, 3, 5, 7, 9 of depuration. Variables like presence of ozone and of microalgae feeding were also analyzed as possible depuration enhancers. Results showed a two-phase virus removal kinetic with a high decrease in the first 24 h of depuration and 5 days necessary to completely remove rotavirus. 相似文献
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It has been observed in Venice Lagoon that salt-marshes have appeared and developed as a consequence of the presence of artificial or biological confinements, maintaining separation domains in the hydrodynamic wave and tidal flow field. 相似文献
58.
John S. Lagarias Jack R. McDonald Dan V. Giovanni 《Journal of the Air & Waste Management Association (1995)》2013,63(11):1221-1227
The high intensity ionizer (HII) has reached a level of development where projections can be made of its potential for enhancing electrostatic precipitator (ESP) performance within the electric utility industry. Future ESP performance requirements are forecast based on a scenario of possible changes in regulations for mass emissions, fine particulate, and opacity. An assessment is made of the alternative means of upgrading ESP performance over the next 15 years. It is concluded that of 570 ESP estimated to require upgrading by 1995 to meet possibly more stringent regulations, approximately 20%—or 117 units—may employ HII. 相似文献
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Andrei Nicoară Aurora Neagoe Paula Stancu Giovanni de Giudici Francesca Langella Anna Rosa Sprocati Virgil Iordache Erika Kothe 《Environmental science and pollution research international》2014,21(11):6905-6920
We performed an experiment at pot scale to assess the effect of plant growth-promoting bacteria (PGPB) on the development of five plant species grown on a tailing dam substrate. None of the species even germinated on inoculated unamended tailing material, prompting use of compost amendment. The effect of inoculation on the amended material was to increase soil respiration, and promote elements immobilisation at plant root surface. This was associated with a decrease in the concentrations of elements in the leaching water and an increase of plant biomass, statistically significant in the case of two species: Agrostis capillaris and Festuca rubra. The experiment was repeated at lysimeter scale with the species showing the best development at pot scale, A. capillaris, and the significant total biomass increase as a result of inoculation was confirmed. The patterns of element distribution in plants also changed (the concentrations of metals in the roots of A. capillaris and F. rubra significantly decreased in inoculated treatments, while phosphorus concentration significantly increased in roots of A. capillaris in inoculated treatment at lysimeter scale). Measured variables for plant oxidative stress did not change after inoculations. There were differences of A. capillaris plant–soil system response between experimental scales as a result of different substrate column structure and plant age at the sampling moment. Soil respiration was significantly larger at lysimeter scale than at pot scale. Leachate concentrations of As, Mn and Ni had significantly larger concentrations at lysimeter scale than at pot scale, while Zn concentrations were significantly smaller. Concentrations of several metals were significantly smaller in A. capillaris at lysimeter scale than at pot scale. From an applied perspective, a system A. capillaris—compost—PGPB selected from the rhizosphere of the tailing dam native plants can be an option for the phytostabilisation of tailing dams. Results should be confirmed by investigation at field plot scale. 相似文献