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排序方式: 共有70条查询结果,搜索用时 46 毫秒
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Tagne Rufis Fregue Tiegam Dong Xiaobin Anagho Solomon G. Kaiser Serena Ulgiati Sergio 《Environment, Development and Sustainability》2021,23(10):14799-14826
Environment, Development and Sustainability - The use of fossil fuels in modern economies has been a success because of the low cost of fossil resources. However, the depletion of fossil reserves,... 相似文献
23.
Serena Risica 《Chemistry and Ecology》1996,12(4):225-230
Following a similar project performed for the Northern European Seas in the years 1985-1990, a study on the radioactive contamination of the Mediterranean Sea has recently been conducted by a group of experts of the European Union (MARINA-MED Project). Its aim was to assess the radiological exposure of the population of the European Union, due both to natural and man-made radionuclides in the Mediterranean Sea. A review of the conclusions of this study is presented, with special attention to the environmental radioactive data. the Italian radioactive monitoring organisation is described. Starting from this experience, some proposals for new research projects are presented. 相似文献
24.
Serracca Laura Rossini Irene Battistini Roberta Goria Maria Sant Serena De Montis Gabriella Ercolini Carlo 《Food and environmental virology》2012,4(3):89-92
In this study, we investigated the presence of enteric viruses such as norovirus (NoV), hepatitis A virus (HAV), hepatitis E virus (HEV), and adenovirus (HAdV), in vegetables available on the Italian markets. For this aim, 110 national and international ??ready to eat?? samples were collected and analyzed by biomolecular tests and positive samples were confirmed by sequencing. All samples (100?%) were negative for HAV, HEV, and HAdV, while 13.6?% (15/110) were positive for NoV. Actually there is not a formal surveillance system for NoV infections in Italy but we clearly demonstrated a potential risk associated with the consumption of ??ready to eat?? vegetables. This study confirmed for the first time in Italy the presence of norovirus in semi-dried tomatoes by PCR technique. 相似文献
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Serena Risica 《Chemistry and Ecology》2013,29(4):225-230
Following a similar project performed for the Northern European Seas in the years 1985–1990, a study on the radioactive contamination of the Mediterranean Sea has recently been conducted by a group of experts of the European Union (MARINA-MED Project). Its aim was to assess the radiological exposure of the population of the European Union, due both to natural and man-made radionuclides in the Mediterranean Sea. A review of the conclusions of this study is presented, with special attention to the environmental radioactive data. the Italian radioactive monitoring organisation is described. Starting from this experience, some proposals for new research projects are presented. 相似文献
27.
Chiara Gambardella Lorenzo Gallus Antonietta M. Gatti Marco Faimali Serena Carbone Livia Vittori Antisari 《Chemistry and Ecology》2014,30(4):308-316
Nanoparticles (NPs) contained in commercial products are released and enter into the aquatic ecosystem, posing serious possible risks to the environment and affecting the food chain. Therefore, investigating the potential toxicity of NPs on aquatic organisms has become an important issue. This study assessed the toxicity and trophic transfer of metal oxide NPs from marine microalgae (Cricosphaera elongata) to the larvae of the sea urchin Paracentrotus lividus. Larvae (24 h old) were fed on 2000 cell mL?1 48 h of microalgae contaminated with 5 mg L?1 of several metal oxide NPs (SiO2, SnO2, CeO2, Fe3O4) for 15 days. Larval viability and development were monitored from the 4-arm stage to the 8-arm pluteus stage. A significant decrease in survival was observed in larvae fed with microalgae exposed to SiO2 and CeO2 NPs. Abnormal development, characterised by skeletal degeneration and altered rudiment growth, was observed in all larvae fed with contaminated NP algae. Our findings revealed that SiO2 and CeO2 NPs exerted a toxic effect in the trophic interaction analysed, by reducing sea urchin larval viability, and all metal oxide NPs induced toxicological effects. In conclusion, metal oxide NPs may enter the food chain and become bioavailable for marine organisms, affecting their development. 相似文献
28.
Animal movement is a pivotal element of many ecological processes, and on ocean-exposed sandy shores, ghost crabs (genus Ocypode) undertake extensive nocturnal forays on the beach surface. Because crab populations are also threatened by vehicle traffic,
indicators that can detect sublethal effects before population declines are manifest are important. To this end, we tested
on a barrier island in Eastern Australia whether movement patterns of crabs respond predictably to disturbance by vehicles;
this was done by tracking (using the spool-and-line technique) crabs at night in beach sections open and closed to traffic.
Beach traffic not only halved population densities of crabs on the unvegetated beach seawards of the dunes, but it also fundamentally
changed crab behaviour and movement: individuals from beach areas rutted by tyre tracks travelled shorter distances in a more
erratic zigzag pattern, and they had significantly compressed home ranges. Such behavioural changes linked to human pressures
could be well suited as an early warning signal for wider negative ecological impacts (as demonstrated by reduced abundances).
They also emphasize the need to incorporate sublethal effects into the assessment and management of ecological changes resulting
from beach recreation. 相似文献
29.
Anand Uttpal Dey Satarupa Bontempi Elza Ducoli Serena Vethaak A. Dick Dey Abhijit Federici Stefania 《Environmental Chemistry Letters》2023,21(3):1787-1810
Environmental Chemistry Letters - Microplastics pollution is major threat to ecosystems and is impacting abiotic and biotic components. Microplastics are diverse and highly complex... 相似文献
30.
Oluyinka Oyewumi Madeline E. Schreiber Serena Ciparis 《Environmental monitoring and assessment》2014,186(1):97-115
This project examined the impact of long-term poultry litter application on the chemical signatures of As, Cu, Zn, and P in stream sediments of the Broadkill River watershed within the Delmarva Peninsula, a region of intense poultry production. Thirty-seven sediment samples were collected from Broadkill River drainage systems and analyzed for litter-derived elements (As, Cu, Zn, P) and basic soil parameters such as particle size distribution, organic matter, and soluble salts. Results showed that concentrations of elements in stream sediments are approximately log-normally distributed. Spatial variability in concentrations of elements was evident, with most elements increasing in concentration and enrichment from upgradient headwaters to downgradient reaches draining predominantly agricultural areas. Results of correlation analyses showed positive significant correlation among elements; elements were also positively correlated with percent clay and silt in the sediment. Using GIS maps with overlays of hydrology and land use activities, statistical correlations between As, Cu, Zn, and P enrichment factors and land use were examined. Results showed statistically significant relationships between As, Mn, and Zn enrichment factors and residential areas within the watershed, but did not show a statistically significant relationship between element enrichment factors and agricultural land use. Factors that complicate this type of landscape-scale study include the presence of poultry processing plants, impoundments, changes in land use over time, and the influence of tides, all of which can have direct and indirect influences on element mobility. 相似文献