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排序方式: 共有198条查询结果,搜索用时 750 毫秒
21.
22.
Stefano Raccanelli Simone Libralato Maurizio Favotto 《Environmental Chemistry Letters》2008,6(4):251-258
Rearing benthic bivalves that are contaminated by persistent organic pollutants (POPs) in areas with low pollution levels
permits their natural detoxification. Here, we present the results of novel detoxification experiments conducted with the
Manila clam (Tapes philippinarum) in the Venice Lagoon; these experiments were conducted both in summer and winter. Measurements of dioxins (PCDD), furans
(PCDF), polychlorinated biphenyl (PCB) and hexachlorobenzene (HCB) concentrations in clam flesh over time after their resettlement
in cleaner areas allowed for determining the minimum time required to reach safe toxicity levels. Moreover, dioxin fingerprint
dynamics demonstrated successful detoxification from industrial contaminants. A simple bioaccumulation/detoxification model
applied to the collected data provided for the first time estimation of detoxification rates and half-lives for POP congeners
in clam flesh. This work provides a basis for considering natural detoxification as a viable solution for safely exploiting
resources otherwise restricted from human consumption due to associated health risks. 相似文献
23.
Conti Marcelo Enrique Plà Rita Simone Cristina Jasan Raquel Finoia Maria Grazia 《Environmental science and pollution research international》2020,27(31):38819-38834
Environmental Science and Pollution Research - This study aims to investigate the airborne elements’ deposition by using native Usnea barbata lichens as biomonitors in the forested areas of... 相似文献
24.
Katrine A. Gorham Nicola J. Blake Richard A. VanCuren Henry E. Fuelberg Simone Meinardi Donald R. Blake 《Atmospheric environment (Oxford, England : 1994)》2010,44(19):2271-2279
We present a study of the seasonal and diurnal variability of carbon monoxide and selected volatile organic compounds in the Los Angeles area. Measurements were made during four different nine-day field campaigns in April/May, September, and November, 2007, and February, 2008, at the Mt. Wilson sampling site, which is located at an elevation of approximately 1700 m in the San Gabriel Mountains overlooking Pasadena and the Los Angeles basin. The results were used to characterize the Mt. Wilson site as a representative location for monitoring integrated Los Angeles basin emissions, and, by reference to carbon monoxide emissions, to estimate average annual emissions. The considerable seasonal variability of many hydrocarbons, in both their measured mixing ratios and their relationship to carbon monoxide, was indicative of variable source strengths. Most interestingly, perturbation of C4 hydrocarbon ratios suggested an enhanced role for chlorine chemistry during the month of September, likely as the result of Los Angeles’ coastal location. Such coastal influence was confirmed by observations of enhanced mixing ratios of marine halocarbons, as well as air mass back trajectories. 相似文献
25.
Luca Coscieme Federico M. Pulselli Simone Bastianoni Christopher D. Elvidge Sharolyn Anderson Paul C. Sutton 《Ambio》2014,43(7):969-979
Night-time satellite imagery enables the measurement, visualization, and mapping of energy consumption in an area. In this paper, an index of the “sum of lights” as observed by night-time satellite imagery within national boundaries is compared with the emergy of the nations. Emergy is a measure of the solar energy equivalent used, directly or indirectly, to support the processes that characterize the economic activity in a country. Emergy has renewable and non-renewable components. Our results show that the non-renewable component of national emergy use is positively correlated with night-time satellite imagery. This relationship can be used to produce emergy density maps which enable the incorporation of spatially explicit representations of emergy in geographic information systems. The region of Abruzzo (Italy) is used to demonstrate this relationship as a spatially disaggregate case. 相似文献
26.
Barbara Salvadori Daniela Pinna Simone Porcinai 《Environmental science and pollution research international》2014,21(3):1884-1896
Salt crystallization is a major damage factor in stone weathering, and the application of inappropriate protective products may amplify its effects. This research focuses on the evaluation of two protective products' performance (organic polydimethylsiloxane and inorganic ammonium oxalate (NH4)2(COO)2·H2O) in the case of a salt load from behind. Experimental laboratory simulations based on salt crystallization cycles and natural weathering in an urban area were carried out. The effects were monitored over time, applying different methods: weight loss evaluation, colorimetric and water absorption by capillarity measurements, stereomicroscope observations, FTIR and SEM-EDS analyses. The results showed minor impact exerted on the short term on stones, particularly those treated with the water repellent, by atmospheric agents compared to salt crystallization. Lithotypes with low salt load (Gioia marble) underwent minor changes than the heavily salt-laden limestones (Lecce and Ançã stones), which were dramatically damaged when treated with polysiloxane. The results suggest that the ammonium oxalate treatment should be preferred to polysiloxane in the presence of soluble salts, even after desalination procedures which might not completely remove them. In addition, the neo-formed calcium oxalate seemed to effectively protect the stone, improving its resistance against salt crystallization without occluding the pores and limiting the superficial erosion caused by atmospheric agents. 相似文献
27.
Gosetti Fabio Robotti Elisa Bolfi Bianca Mazzucco Eleonora Quasso Fabio Manfredi Marcello Silvestri Simone Facchi Arianna Marengo Emilio 《Environmental science and pollution research international》2019,26(21):21274-21294
Environmental Science and Pollution Research - Rice cultivation requires a large use of pesticides and nutrients to control weed proliferation and improve production. The water quality of four... 相似文献
28.
Machado Santos Simone Cabral Neto João Mendonça Silva Maisa 《Environmental science and pollution research international》2019,26(6):5782-5793
Environmental Science and Pollution Research - Lead acid battery (LAB) scrap management is an important issue both environmentally and economically. The recovery of lead from battery scrap leads to... 相似文献
29.
Marino Tiziana Galiano Francesco Simone Silvia Figoli Alberto 《Environmental science and pollution research international》2019,26(15):14774-14785
Environmental Science and Pollution Research - The possibility of replacing traditional toxic solvents normally employed during the preparation of polymeric membranes with greener alternatives... 相似文献
30.
Davide Chiaroni Vittorio Chiesa Simone Franzò Federico Frattini 《International Journal of Green Energy》2017,14(11):889-898
This article investigates the impact that the electricity tariff reform is likely to have on investments in renewable energies (i.e., photovoltaics) and the adoption of energy efficiency measures (i.e., installation of heat pumps and efficient home appliances) in the residential market in Italy. The study develops detailed cost comparisons and simulations considering two different investment scenarios (before and after the reform) to conclude that the reform will: (i) have a negative impact on investments in photovoltaic systems; (ii) favor the adoption of energy efficiency measures, such as efficient home appliances. 相似文献