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281.
This paper focuses on growth feasibility in an era of increasing scarcity of fossil fuels. A stylised dynamic model illustrates the implications of investing in smooth technological progress in the field of renewable energy. Positive rates of GDP growth sustained by fossil fuels entail, on the one hand, more income available for R&D in renewable energy sources, and on the other, an acceleration of the exhaustible resource depletion time. Our model explores such a trade-off and highlights the danger of high growth rates. Policies should target low growth rates, stimulate investment in alternative energy sources and discourage consumption growth. 相似文献
282.
283.
Karla Patricia Oliveira-Esquerre Mario Cezar Mattos 《Resources, Conservation and Recycling》2011,55(3):316-324
A methodology for water use minimization has been developed by the Clean Technology Network of Bahia over a 10 year period in joint cooperative programs with the chemical, petrochemical and copper metallurgy industries located in the largest Industrial Complex in Latin America, in Camaçari, Bahia, Brazil. The methodology comprises a set of tools including reconciled aqueous stream balances, database of aqueous streams; large scale training leading to the identification of water minimization alternatives in the processes, water reuse optimization approaches; geographical information systems as well as, consideration of the region's hydro and hydro-geological characteristics. The results of a study carried out to assess the possibility of using storm and wastewaters for industrial use is presented in this paper. The inorganic system is composed by three water reservoirs (basins) receiving stormwater contaminated with inorganic effluents, and occasionally with organics. These basins have been operated to control water flow inputs according to the capacity of the pumping outlet systems before their discharge to a submarine outfall. A mass balance was performed with historical updated data to assess water availability from the basins based on the daily volume variation and flow rate of inorganic effluent from 2001 to 2007. The study identified the possibility of recovering about 1140 m3/h of the overall 5400 m3/h consumed by the Industrial Complex at the moment. Organizational changes in the present effluent disposal and stormwater harvest systems will be required in order to maximize water recovery for industrial use. 相似文献
284.
Polycyclic aromatic hydrocarbons and polychlorinated biphenyls in the harbour of Naples (Southern Italy): time and spatial distribution patterns 总被引:1,自引:0,他引:1
Maria Luisa Feo Mario Sprovieri Serena Gherardi Simone Sammartino Ennio Marsella 《Environmental monitoring and assessment》2011,174(1-4):445-459
Seventeen parent polycyclic aromatic hydrocarbons (PAHs) and 38 congeners of polychlorinated biphenyls were measured at five different sediment depths (between the surface and ~300 cm below the seafloor) at 160 sites in Naples harbour. Total PAH (??PAH) and PCB (??PCB) concentrations ranged between 0.012?C21.73???nd 0.001?C0.222 mg kg???1, respectively. For PAHs, an evident and progressive decrease in concentration with depth documents the effects of a more intense anthropic impact of this group of pollutants in the recent period. A selected number of PAH isomer pairs (phenanthrene/anthracene, fluoranthene/pyrene and benzo(a)anthracene/crysene) were used to distinguish between contaminants of pyrolitic and petrogenic origin. More than 90% of PAHs present at the different depths of the studied sediments indicate pyrolitic industrial origins. On the other hand, relatively high concentrations of three- and four-ring PAHs suggest a limited contribution of vehicular emissions to the contamination of sediments. An unexpected and systematic increase of ??PCB concentration, exceeding values approved by international regulations, was found in the studied sediments, testifying to the uncontrolled discharge to the studied area from industrial and commercial activity on nearby land. Ecotoxicological risk levels calculated for PAHs suggests a relatively elevated level of toxicity in surface sediments decreasing with depth and very low toxicity values associated to PCB toxicity. 相似文献
285.
Zacarías Silvia Mercedes Manassero Agustina Pirola Silvana Alfano Orlando Mario Satuf María Lucila 《Environmental science and pollution research international》2021,28(19):23859-23867
Environmental Science and Pollution Research - Since COVID-19 pandemic, indoor air quality control has become a priority, and the development of air purification devices effective for disinfecting... 相似文献
286.
Maaloul Najeh Oulego Paula Rendueles Manuel Ghorbal Achraf Díaz Mario 《Environmental science and pollution research international》2021,28(34):46523-46539
Environmental Science and Pollution Research - The current study is focused on the simple synthesis of two novel biosorbent beads: BASB/STMP and CNFB/STMP, derived respectively from bleached almond... 相似文献
287.
Gálvez-Iriqui Alma Carolina García-Romo Joel Said Cortez-Rocha Mario Onofre Burgos-Hernández Armando Burboa-Zazueta María Guadalupe Luque-Alcaraz Ana Guadalupe Calderón-Santoyo Montserrat Argüelles-Monal Waldo Manuel Plascencia-Jatomea Maribel 《Environmental science and pollution research international》2021,28(3):3051-3065
Environmental Science and Pollution Research - Chitosan (CS) nanosystems have potential applications for the control of microorganisms in the medical, environmental, and agrifood fields. In vivo... 相似文献
288.
Fermo Paola Colella Mario Malagodi Marco Fiocco Giacomo Albano Michela Marchioron Silvia Guglielmi Vittoria Comite Valeria 《Environmental science and pollution research international》2022,29(20):29498-29509
Environmental Science and Pollution Research - The surface coating present on a marble Piety dating to the Renaissance period and stored at the Castello Sforzesco-Museum of Ancient Art (Milan,... 相似文献
289.
Northern Latium (Italy) is an area where the Rn risk rate is potentially high because of the extensive outcropping of Neogene
U-rich volcanics and the presence of major active tectonic lineaments. The lack of data on Rn risk rates in that area, which
is undergoing major urban and industrial development, has prompted this study. It proposes a methodology to evaluate the maximum
potential diffusive Rn flux from soils based on the measurement of 226Ra, 232Th and 40K activities by γ-ray spectrometry, and the measurement of main soil parameters influencing the Rn emanation. This methodology
provides a simple, reliable and low-cost tool for drawing up radon flux maps useful to both public planners and private individuals,
who want to operate safely in the study area. The proposed methodology may also be applied to other geographic areas outside
the prescribed study area. 相似文献
290.
Gómez-Aracena J Riemersma RA Gutiérrez-Bedmar M Bode P Kark JD Garcia-Rodríguez A Gorgojo L Van't Veer P Fernández-Crehuet J Kok FJ Martin-Moreno JM;Heavy Metals Myocardial Infarction Study Group 《Chemosphere》2006,64(1):112-120
The association between cerium status and risk of first acute myocardial infarction (AMI) was examined in a case-control study in 10 centres from Europe and Israel. Cerium in toenails was assessed by neutron activation analysis in 684 cases and 724 controls aged 70 years or younger. Mean concentrations of cerium were 186 and 173 microg/kg in cases and controls, respectively. Cerium was positively associated with low socio-economic status, smoking, mercury, zinc and scandium (p0.001). Cases had significantly higher levels of cerium than controls after adjustment for age and centre (case-control ratio 1.074; 95% CI 1.002-1.151) and increased in further adjustment for other cardiovascular risk factors 1.085; 95% CI 1.025-1.149. The risk after adjustment for age and centre was higher with increasing cerium levels (p for trend=0.02). After adjustment for BMI, history of hypertension, smoking, alcohol intake, diabetes, family history of CHD, beta-carotene, lycopene, alpha-tocopherol, selenium, mercury and scandium, the OR for the highest quintile was 1.43 (95% CI 0.85-2.41; p-trend 0.08). When we applied this same model in non-smokers the odds ratios in the 4th and 5th quintiles of cerium as compared with the lowest were 2.09 (95% CI 1.05-4.16) and 2.81 (95% CI 1.21-6.52), respectively, p-trend 0.011. Our results suggest that toenail cerium levels may be associated with an increased risk of AMI, but more research is warranted to shed further light and fully understand the plausibility and public health implications of these findings. 相似文献