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Journal articles on the topic 'Contamination diffuse des sols'

Author: Grafiati

Published: 7 July 2024

Last updated: 31 July 2025

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1

Tack, F. M. G., and B. Vandecasteele. "Metal Contaminated Dredged Sediment Derived Soils: A Case Of Diffuse Contamination." E3S Web of Conferences 1 (2013): 33009. http://dx.doi.org/10.1051/e3sconf/20130133009.

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2

Johnsen, Anders R., and Ulrich Karlson. "Diffuse PAH contamination of surface soils: environmental occurrence, bioavailability, and microbial degradation." Applied Microbiology and Biotechnology 76, no. 3 (2007): 533–43. http://dx.doi.org/10.1007/s00253-007-1045-2.

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3

Meinardi, C. R., A. H. W. Beusen, M. J. S. Bollen, O. Klepper, and W. J. Willems. "Vulnerability to diffuse pollution and average nitrate contamination of european soils and groundwater." Water Science and Technology 31, no. 8 (1995): 159–65. http://dx.doi.org/10.2166/wst.1995.0288.

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From the Atlantic Ocean to the Ural Mountains, European soils are threatened by diffuse pollution from modern agriculture and increased atmospheric deposition. The vulnerability of the soil to diffuse pollution depends on land cover, topsoil features, net precipitation, aquifer type, groundwater recharge and age. The elaboration of the various elements was realized by applying Geographical Information Systems (GISs). Precipitation and the actual evapotranspiration were estimated using meteorological data. The resulting net precipitation is discharged by groundwater recharge and surfacial runof

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4

Biasioli, Mattia, and Franco Ajmone-Marsan. "Organic and inorganic diffuse contamination in urban soils: the case of Torino (Italy)." Journal of Environmental Monitoring 9, no. 8 (2007): 862. http://dx.doi.org/10.1039/b705285e.

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5

Kabir, M. I., H. Lee, G. Kim, and T. Jun. "Monitoring and assessing heavy metals in topsoils as potential diffuse pollutants in the Pyeongchang River Basin, Korea." Water Science and Technology 61, no. 12 (2010): 3156–61. http://dx.doi.org/10.2166/wst.2010.233.

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Topsoils, mainly from crop fields, orchards, forests, and barns around the Pyeongchang River, were collected to investigate their heavy metal concentrations. Pollution load index, ecological risk index, and enrichment factor were applied to assess levels of heavy metal contamination for topsoils. The concentrations of cadmium (Cd) (1.7 mg/kg) and chromium (Cr) (4.1 mg/kg) exceeded the troublesome level in one site, whereas zinc (Zn) (396.7 to 711.1 mg/kg) and nickel (Ni) (40.1 to 95.3 mg/kg) in several topsoils exceeded the troublesome to countermeasure levels, according to soil contamination

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Kookana, R. S., S. Baskaran, and R. Naidu. "Pesticide fate and behaviour in Australian soils in relation to contamination and management of soil and water: a review." Soil Research 36, no. 5 (1998): 715. http://dx.doi.org/10.1071/s97109.

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Pesticides, if used as recommended, are generally expected to cause little adverse impact on the environment. However, it is evident that trace levels of pesticide residues present in soil, water, air, and sometimes food, may result in harmful effects on human and environmental health. Pesticides can pose health risks through several exposure pathways including direct occupational related exposure, through food, or through the residues present in the environment. This paper reviews available information on the nature and extent of pesticide contamination of Australian soils, surface water, and

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7

Kim, Nicholas D., Matthew D. Taylor, Jonathan Caldwell, Andrew Rumsby, Olivier Champeau, and Louis A. Tremblay. "Development and Deployment of a Framework to Prioritize Environmental Contamination Issues." Sustainability 12, no. 22 (2020): 9393. http://dx.doi.org/10.3390/su12229393.

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Management and regulatory agencies face a wide range of environmental issues globally. The challenge is to identify and select the issues to assist the allocation of research and policy resources to achieve maximum environmental gain. A framework was developed to prioritize environmental contamination issues in a sustainable management policy context using a nine-factor ranking model to rank the significance of diffuse sources of stressors. It focuses on contamination issues that involve large geographic scales (e.g., all pastoral soils), significant population exposures (e.g., urban air quali

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Panagos, Panos, Cristiano Ballabio, Emanuele Lugato, et al. "Potential Sources of Anthropogenic Copper Inputs to European Agricultural Soils." Sustainability 10, no. 7 (2018): 2380. http://dx.doi.org/10.3390/su10072380.

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In the European Union (EU), copper concentration in agricultural soil stems from anthropogenic activities and natural sources (soil and geology). This manuscript reports a statistical comparison of copper concentrations at different levels of administrative units, with a focus on agricultural areas. Anthropogenic sources of diffuse copper contamination include fungicidal treatments, liquid manure (mainly from pigs), sewage sludge, atmospheric deposition, mining activities, local industrial contamination and particles from car brakes. Sales of fungicides in the EU are around 158,000 tonnes annu

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Dupuy, A., O. Banton, and M. Razack. "Contamination nitratée des eaux souterraines d'un bassin versant agricole hétérogène: 1. Évaluation des apports à la nappe (modèle Agriflux)." Revue des sciences de l'eau 10, no. 1 (2005): 23–40. http://dx.doi.org/10.7202/705268ar.

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Au cours des dernières décennies, la hausse de la productivité agricole s'est accompagnée d'une forte augmentation des fertilisations azotées qui a entraîné l'augmentation des concentrations en nitrates dans les eaux souterraines. Récemment, les études sur la gestion des pollutions diffuses agricoles ont intégré l'échelle du bassin versant hydrologique. Dans cet article, une approche basée sur un découpage en secteurs pédologiquement et agronomiquement homogènes a été élaborée pour permettre l'utilisation d'un modèle d'évaluation (AgriFlux), et obtenir les flux d'eau et de nitrates sortant de

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10

Barbour, S. L., and N. Yang. "A review of the influence of clay–brine interactions on the geotechnical properties of Ca-montmorillonitic clayey soils from western Canada." Canadian Geotechnical Journal 30, no. 6 (1993): 920–34. http://dx.doi.org/10.1139/t93-090.

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Natural Ca-montmorillonite clay soils or engineered clay barriers in western Canada are often used to contain brine generated from the surface disposal of potash tailings or from drilling activities associated with the oil and gas industry. The performance of these barriers has ranged from excellent to poor. The influence of salt brines on the geotechnical properties of these soils has been recognized as a potentially important factor for some time. It has been well documented in the literature that the behavior of clayey soils is strongly influenced by physicochemical interactions between cla

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11

Agrawal, G. D. "Diffuse agricultural water pollution in India." Water Science and Technology 39, no. 3 (1999): 33–47. http://dx.doi.org/10.2166/wst.1999.0131.

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Concern over agricultural diffuse pollution sources in integrated water quality management has been growing recently. Such sources are likely to be even more critical in developing countries, including India, where agriculture and rural habitats are still dominant, unlike the G7 or other affluent industrialised nations. A number of special features of the Indian scene need to be considered. These include: (i) extremely varying rainfall and stream-flow patterns; (ii) still largely traditional agricultural practices with average application of fertilizers and pesticides and significant areas und

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García, Víctor, Carmen Márquez, Andrés Cedeño, and Kleber Montesdeoca. "Assessing Bioremediation of Soils Polluted with Fuel Oil 6 by Means of Diffuse Reflectance Spectroscopy." Resources 8, no. 1 (2019): 36. http://dx.doi.org/10.3390/resources8010036.

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This study aimed to assess the bioremediation of soils polluted with fuel oil 6 (FO6) using diffuse reflectance (DR) spectroscopy in the visible and near infrared (Vis-NIR) electromagnetic spectrum. To achieve our goal, we determined the spectral signature of fuel oil 6 (FO6), developed a calibration model to quantify the total petroleum hydrocarbons (TPH), and assessed the bioremediation in soils contaminated with FO6 and inoculated with Pseudomonas aeruginosa. Surface soil samples (SS) (0–30 cm depth) from uncontaminated Entisol soil from Termoesmeraldas Thermal Power Plant, Ecuador and quar

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Steiner, Laure, Walter Rosselli, Jean Combe, Vincent Barbezat, and Alexandre Buttler. "Reboisement de sites pollués – Enseignements tirés d'une étude de cas avec des métaux lourds | Reforestation of polluted soils – results of a case study on heavy metals." Schweizerische Zeitschrift fur Forstwesen 157, no. 5 (2006): 157–61. http://dx.doi.org/10.3188/szf.2006.0157.

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Les Abattes (Le Locle, Canton Neuchâtel) is an ancient dump contaminated by metals, like thousands of others in Switzerland,which, according to the law, does not require a reclaiming. Local trees have been grown on this site and data have been collected for 15 years between 1991 and 2005. Lessons grown from this experience are mixed. The plantation has stabilised the soil physically and immobilised the metals more rapidly than natural pioneer plants would. However growing trees have not been able to extract enough metals from soil. The risk of a diffuse metal contamination of surface water and

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Karczmarczyk, Agnieszka. "Hauled liquid waste as a pollutant of soils and waters in Poland." Annals of Warsaw University of Life Sciences – SGGW. Land Reclamation 48, no. 2 (2016): 111–22. http://dx.doi.org/10.1515/sggw-2016-0009.

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Abstract Hauled liquid waste as a pollutant of soils and waters in Poland. Improperly maintained holding tanks are often underestimated source of contamination of soil, groundwater and surface water. As a rule, wastewater stored in holding tanks, should be transported and treated in municipal wastewater treatment plants (WWTPs). There are 2,257,000 holding tanks in Poland, located mainly in rural areas. The article presents the results of analysis of wastewater management in 20 rural and urban-rural communes, which were chosen at random from the total number of 2,174 communes in Poland. The on

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15

Henry, Roy Hekinen, Muhammad Hafeez Osman, Aniza Albar, and Badrul Nizam Ismail. "Physiomechanical of Residual Soil Contaminated with Zinc Heavy Metals." Journal of Advanced Research in Applied Mechanics 127, no. 1 (2024): 172–82. https://doi.org/10.37934/aram.127.1.172182.

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The rapid industrialization and radical development that has taken place in today's modern society, be it agriculture, construction, industry, soil degradation or heavy metal contamination of soil, is one of the most serious ecological and environmental problems, which continuously poses a serious threat to sustainable development. Heavy metals may change the geotechnical properties of soils, making it difficult to reconstruct buildings on those sites because the parameters of the contaminated soil are unknown. Contamination by heavy metals will lead change soil’s structure, pore characteristi

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16

Śliwińska, Smolinski, and Kucharski. "Simultaneous Analysis of Heavy Metal Concentration in Soil Samples." Applied Sciences 9, no. 21 (2019): 4705. http://dx.doi.org/10.3390/app9214705.

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The application of Fourier transform infrared spectroscopy to the simultaneous analysis of heavy metal concentration in soil samples was demonstrated in this paper. Two spectral techniques, namely, attenuated total reflectance (ATR) and diffuse reflectance (DRIFT), were applied and the whole infrared spectral region, i.e., far IR, mid IR, and near IR were considered in this work. Spectral data with reference to the results of laboratory analysis enabled the development of calibration partial least squares (PLS) models. The PLS models for the ATR near IR were characterized by a good fit and goo

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17

Gventsadze, Giorgi, Giorgi Ghambashidze, Zaur Chankseliani, Ioseb Sarjveladze, and Winfried E. H. Blum. "Impacts of Crop-Specific Agricultural Practices on the Accumulation of Heavy Metals in Soil in Kvemo Kartli Region (Georgia): A Preliminary Assessment." Sustainability 16, no. 10 (2024): 4244. http://dx.doi.org/10.3390/su16104244.

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Maintaining sufficient levels of plant nutrients in the soil and controlling certain heavy metals, which can be toxic to the environment, are critical to ensure sustainable agricultural production. The study aimed to assess the linkage of crop-specific agricultural practices established by farmers in the Kvemo Kartli region (Georgia) with metal accumulation in soils of agricultural lands being subject to influence from polluted irrigation water in the past. In particular, we tried to identify the primary sources of micro-nutrients, including iron (Fe), copper (Cu), manganese (Mn), nickel (Ni),

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18

Mbadugha, Lenka, Duncan Cowper, Sapar Dossanov, and Graeme I. Paton. "Geogenic and anthropogenic interactions at a former Sb mine: environmental impacts of As and Sb." Environmental Geochemistry and Health 42, no. 11 (2020): 3911–24. http://dx.doi.org/10.1007/s10653-020-00652-w.

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Abstract Mining activities are acknowledged to introduce contaminants into localised environments and cause wider spread diffuse pollution. The concentration, distribution and fate of arsenic (As) and antimony (Sb) were studied at the former metalliferous Louisa Mine at Glendinning, Scotland. Soils and surface water were sampled and subsequently analysed to map the distribution of contamination and identify pollution sources. The maximum concentrations of As and Sb of 15,490 and 1504.2 mg kg−1, respectively, were determined in soils associated with the ore processing area and spoil heaps. The

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Severini, Edoardo, Marco Bartoli, Monica Pinardi, and Fulvio Celico. "Reactive Silica Traces Manure Spreading in Alluvial Aquifers Affected by Nitrate Contamination: A Case Study in a High Plain of Northern Italy." Water 12, no. 9 (2020): 2511. http://dx.doi.org/10.3390/w12092511.

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In the northern sector of the Po River Plain (Italy), widespread intensive agriculture and animal farming are supported by large amounts of water from Alpine lakes and their emissaries. Flood irrigation and excess fertilization with manure affect both the hydrology and the chemical quality of surface and groundwater, resulting in diffuse nitrogen pollution. However, studies analyzing the mechanisms linking agricultural practices with vertical and horizontal nitrogen paths are scarce in this area. We investigated groundwater quality and quantity in an unconfined, coarse-grained alluvial aquifer

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Derra, Moumouni, Telado Luc Bambara, Karim Kaboré, Yalgado Zakaria Sawadogo, Ousmane Cissé, and François Zougmoré. "Estimation of the Degree of Heavy Metal Pollution in Market Gardening Soils in Kadiogo Region, Burkina Faso." Current Journal of Applied Science and Technology 42, no. 45 (2023): 17–28. http://dx.doi.org/10.9734/cjast/2023/v42i454284.

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The objective of this study is to estimate the degree of heavy metal pollution (As, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Se, Tl and Zn) of market gardening soils in the Kadiogo region. This work provides reassurance about the quality of the studies soils in the central region of Burkina Faso. Thirty-two (32) market garden soil samples, including two (02) for the background, were measured using ICP-MS. Indeed, the results show that the average concentrations of heavy metals in the 0-20 cm soil profile respect the recommended limits. However, Contamination Factors (CF) and Pollution Load Index (PLI) show

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Pietrini, Fabrizio, Laura Passatore, Valerio Patti, Fedra Francocci, Alessandro Giovannozzi, and Massimo Zacchini. "Morpho-Physiological and Metal Accumulation Responses of Hemp Plants (Cannabis Sativa L.) Grown on Soil from an Agro-Industrial Contaminated Area." Water 11, no. 4 (2019): 808. http://dx.doi.org/10.3390/w11040808.

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Hemp is a promising plant for phytomanagement. The possibility to couple soil restoration to industrial crop cultivation makes this plant attractive for the management of contaminated sites. In this trial, Cannabis sativa L. plants were grown in a greenhouse on soils from two sites of “Valle del Sacco” (Lazio Region, Italy), a wide area contaminated by agro-industrial activities. One site was representative of moderate and diffuse metal(loid) multi-contamination, above the Italian concentration limit for agriculture (MC—moderately contaminated). The second site showed a metal(loid) content bel

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22

Aghzar, N., H. Berdai, A. Bellouti, and B. Soudi. "Pollution nitrique des eaux souterraines au Tadla (Maroc)." Revue des sciences de l'eau 15, no. 2 (2005): 459–92. http://dx.doi.org/10.7202/705465ar.

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Dans les périmètres irrigués du Maroc, la pollution nitrique diffuse des eaux souterraines augmente le risque de détérioration de la qualité des ressources hydriques et engendre un risque sanitaire pour la population rurale s'approvisionnant le plus souvent directement de l'aquifère. La présente étude, réalisée dans le périmètre du Tadla (3600 km2), située au centre du Maroc, vise à faire l'état des lieux de la contamination des eaux souterraines par les nitrates et à identifier les causes potentielles de cette pollution. Le suivi de la concentration des eaux souterraines en nitrates a été réa

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Forouhar Vajargah, Mohammad. "Assessing the Impact of Organophosphorus Pesticides (OPPs) on Aquatic Ecosystems: A Review." New Medical Innovations and Research 6, no. 3 (2025): 01–04. https://doi.org/10.31579/2767-7370/153.

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Organophosphate pesticides (OPPs) are widely used chemicals with significant applications in agriculture, public health, and industry. Despite their utility, the extensive use of OPPs raises pressing concerns about their environmental persistence and impact on non-target organisms. This review explores the environmental distribution, toxicity, and detection methodologies associated with OPPs, emphasizing their ecological and public health implications. OPPs, characterized by their carbon-phosphorus (C-P) linkage and high chemical stability, are prone to pseudo-persistence in aquatic ecosystems

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Kookana, R. S., and R. E. White. "Measuring nutrient and pesticide movement in soils: benefits for catchment management." Australian Journal of Experimental Agriculture 38, no. 7 (1998): 725. http://dx.doi.org/10.1071/ea97154.

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Summary. The movement of nutrients, especially NO3- and H2 PO4-, and pesticides from soils into receiving waters can pose problems for the management of water quality in catchments. This paper briefly reviews the reactions of these materials in soil, and the processes involved in their transport by water over and through soils in the field. The natural heterogeneity of soils, and fluctuations in the source strength of pesticides and nutrients due to biophysical factors and environmental conditions, have a profound effect on measurements. Preferred techniques are discussed for measuring losses

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Wang, Xi, Shi An, Yaqing Xu, et al. "A Back Propagation Neural Network Model Optimized by Mind Evolutionary Algorithm for Estimating Cd, Cr, and Pb Concentrations in Soils Using Vis-NIR Diffuse Reflectance Spectroscopy." Applied Sciences 10, no. 1 (2019): 51. http://dx.doi.org/10.3390/app10010051.

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Visible and near infrared spectroscopy is an effective method for monitoring the content of heavy metals in soil. However, due to the difference between polluted soil with phytoremediation and without phytoremediation, the common estimation model cannot meet accuracy requirements. To solve this problem, combined with an ecological restoration experiment for soil contamination using the plant Neyraudia reynaudiana, this study explored the feasibility of using a hyperspectral technology to estimate the heavy metal content (Cd, Cr, and Pb) of soil under phytoremediation. A total of 108 surface so

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Jolánkai, Zsolt, Máté Krisztián Kardos, and Adrienne Clement. "Modification of the MONERIS Nutrient Emission Model for a Lowland Country (Hungary) to Support River Basin Management Planning in the Danube River Basin." Water 12, no. 3 (2020): 859. http://dx.doi.org/10.3390/w12030859.

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The contamination of waters with nutrients, especially nitrogen and phosphorus originating from various diffuse and point sources, has become a worldwide issue in recent decades. Due to the complexity of the processes involved, watershed models are gaining an increasing role in their analysis. The goal set by the EU Water Framework Directive (to reach “good status” of all water bodies) requires spatially detailed information on the fate of contaminants. In this study, the watershed nutrient model MONERIS was applied to the Hungarian part of the Danube River Basin. The spatial resolution was 10

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Cachada, Anabela, Ana Dias, Amélia Reis, et al. "Multivariate Analysis for Assessing Sources, and Potential Risks of Polycyclic Aromatic Hydrocarbons in Lisbon Urban Soils." Minerals 9, no. 3 (2019): 139. http://dx.doi.org/10.3390/min9030139.

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Urban soils quality may be severely affected by polycyclic aromatic hydrocarbons (PAHs) contamination, as is the case of Lisbon (Portugal). However, to conduct a risk assessment analysis in an urban area can be a very difficult task due to the patchy nature and heterogeneity of these soils. Thus, the present study aims to provide an example on how to perform the first tier of a risk assessment plan in the case of urban soils using a simpler, cost effective, and reliable framework. Thus, a study was conducted in Lisbon to assess the levels of PAH, their potential risks to the environment and hu

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Lebeau, Thierry, Marie Bonnisseau, Hervé Capiaux, et al. "La chicorée, un remède pour assainir les sols viticoles." Ébullition(s) : le cahier illustré de la recherche, no. 2 (February 18, 2025): 124–29. https://doi.org/10.59655/nl52122995492.

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L’utilisation de la bouillie bordelaise contre le mildiou provoque une contamination des sols et un dysfonctionnement des écosystèmes viticoles. Pour limiter ses effets toxiques et dans une perspective d’économie circulaire, le projet Vitalicuivre expérimente la culture de la chicorée qui extrait le cuivre de ces sols pollués pour le recycler en alimentation animale.

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Kravsun, Tatiana. "Phytotesting of heavy metal contamination of Donbass soils." Diversity of plant world 3 (6) (December 11, 2020): 37–44. http://dx.doi.org/10.22281/2686-9713-2020-3-37-44.

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The article presents the results of phytotesting of soil solutions with high concentrations of heavy metal ions. The sensitivity of Donbass species plant to soil pollution was established by specific transformations in the structures of the embryonic root Achillea nobilis L., Artemisia vulgaris L., Centaurea diffusa Lam., Galinsoga parviflora Cav., Senecio vulgaris L., Tripleurospermum inodorum (L.) Sch. Bip. Model experiments on plant germination were carried out in laboratory conditions with fixed concentrations of individual metals and with joint pollution, as well as when testing soil samp

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Diop, Tidiane, Abdoulaye Diarra, Mouhamadou Abdoulaye Diallo, Mame Mor Dione, and Abdoulaye Diop. "Impact d’une décharge urbaine sur la contamination métallique des sols : cas de la décharge de Mbeubeuss (Dakar)." International Journal of Biological and Chemical Sciences 16, no. 6 (2023): 2992–3002. http://dx.doi.org/10.4314/ijbcs.v16i6.41.

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La contamination des sols par des éléments traces métalliques est l’un des problèmes environnementaux les plus pressants. La mise en décharge d’ordures ménagères est une source de cette contamination. La présente étude a pour objectif d’évaluer l’impact de la décharge urbaine de Mbeubeuss (Dakar) sur la contamination en Éléments traces Métalliques (ETM). La méthodologie consiste à prélever cinq (5) échantillons de sols retenus en fonction de leur proximité au point central de la décharge afin de caractériser les paramètres physico-chimiques (pH et conductivité électriques) et les teneurs en Él

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Simard, R. R., and S. Beauchemin. "Relation entre la richesse du sol en phosphore et la concentration en phosphore de l'eau de drainage dans deux agro-écosystèmes." Revue des sciences de l'eau 15 (April 12, 2005): 109–20. http://dx.doi.org/10.7202/705489ar.

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Des concentrations en P excédant le seuil d'eutrophisation sont fréquemment mesurées dans l'eau des affluents du fleuve Saint-Laurent au Québec, Canada. Un enrichissement excessif en P des sols agricoles en serait la source. Une norme relative à la saturation en P des sols a été proposée comme critère de risque de contamination en P des eaux de surface. L'objectif de ce travail est d'étudier le lien entre la richesse en P du sol et la teneur en P de l'eau de drainage dans deux agro-écosystèmes du Québec. Le bassin versant de la rivière Boyer (BVB), dominé par des sols en pente, une forte densi

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Roy, M., and D. Couillard. "Mobilité des métaux et risque de contamination des eaux lors de la valorisation sylvicole des boues de station d'épuration municipales au Québec : une revue." Revue des sciences de l'eau 10, no. 4 (2005): 507–25. http://dx.doi.org/10.7202/705291ar.

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La présence de métaux dans les boues municipales demeure l'obstacle majeure à leur valorisation comme fertilisant agricole ou forestier. L'utilisation des boues en milieu forestier diminue certes les risques de contamination de la chaîne alimentaire humaine. Cependant, nos connaissances sur le comportement à long terme des métaux ajoutés aux sols forestiers sont encore très limitées. Le risque de lessivage des métaux vers les écosystèmes aquatiques situés en aval des zones traitées doit être évalué. Cet article propose une comparaison des risques de contamination de l'eau selon que l'applicati

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HECKENROTH, Alma, Isabelle LAFFONT-SCHWOB, Teddy BAUMBERGER, et al. "Comment allier stabilisation des sols contaminés et préservation d'Astragalus tragacantha L. sur le littoral remarquable du Parc national des Calanques ?" Naturae 2022, no. 3 (2022): 31–41. https://doi.org/10.5852/naturae2022a3.

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Face à la dégradation anthropique des habitats littoraux du Parc national des Calanques, le projet européen LIFE Habitats Calanques (LIFE16 NAT/FR/000593) a pour objectif d'entreprendre des actions de protection et de restauration écologique à grande échelle. Parmi ces habitats, la phrygane (code Natura 2000 : 5410) représente un exemple typique d'une situation littorale contrainte par une forte anthropisation et des conditions climatiques drastiques. Cet habitat est structuré par l'Astragale de Marseille (<i>Astragalus tragacantha</i> L.), une espèce végétale rare et protégée dont ses populat

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Duchesne, Josée, and Guy Mercier. "Établissement d'une méthode de caractérisation minéralogique décrivant les sols contaminés par le plomb." Canadian Geotechnical Journal 40, no. 4 (2003): 731–41. http://dx.doi.org/10.1139/t03-029.

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Many metal-contaminated soils originate in old abandoned industrial sites. One of the problems encountered in the reclamation of soils lies in the selection of the decontamination techniques. Few data are available to predict the efficiency of the extraction of metals from the contaminated soils. Moreover, a signifiant part of the contamination is often found as particles. These can be extracted from the soils by means of mineralurgical separation techniques. A trial and error procedure is often used for selecting the technique and the procedure parameters. The purpose of this study is to deve

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Maggi, L., M. Carmona, A. Zalacain, et al. "SAFFRON AS ENVIRONMENTAL BIOMARKER OF DIFFUSE CONTAMINATION." Acta Horticulturae, no. 850 (January 2010): 265–70. http://dx.doi.org/10.17660/actahortic.2010.850.45.

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Larichev, Yurii V. "Experience of Using DLS to Study the Particle Sizes of Active Component in the Catalysts Based on the Oxide and Non-Oxide Supports." Inorganics 10, no. 12 (2022): 248. http://dx.doi.org/10.3390/inorganics10120248.

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The present study reports the use of the dynamic light scattering (DLS) method to analyze metal nanoparticle sizes in supported catalysts (as a model system for different metal-oxide nanocomposites, ceramics, etc.). The selective dissolution of matrices has been used to transform solids to sols for DLS analysis. DLS/STS (from solid to sol) technique was tested on a wide number of different sets of supported metal catalysts (Pt, Pd, Ru metals and Al2O3, SiO2, TiO2, C3N4, carbon and polymers as supports). The transmission electron microscopy and X-ray diffraction (TEM/XRD) results for the initia

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Ye, Lambiénou, Désiré Jean Pascal Lompo, Aboubakar Sako, and Hassan Bismarck Nacro. "Evaluation of trace metal content in soils subjected to inputs of solid urban wastes." International Journal of Biological and Chemical Sciences 14, no. 9 (2021): 3361–71. http://dx.doi.org/10.4314/ijbcs.v14i9.31.

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Large amounts of solid urban waste (SUW), sometimes containing trace metal (TM), are used to fertilize agricultural soils. The aim of this study was to assess concentrations of TM in peri-urban agricultural soils exposed to SUW inputs around Bobo-Dioulasso. Composite samples of fourteen soil profiles (0-20 cm, 20-40 cm and 40-60 cm) were collected in the classified Dindéréso forest in the outskirts of Bobo-Dioulasso. Inductively coupled plasma mass spectrometry (ICP/MS) was used to analyze TM concentrations in the samples. Concentrations of Cd, Cr, Cu, Ni, Pb and Zn varied broadly according to

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Omoya, F. O., and F. B. Ajimojuowo. "Comparative Effects of Prepared and Vended Herbs on Selected Diarrhoegenic Bacteria in Ekiti State." INTERNATIONAL JOURNAL OF PHARMACEUTICAL AND BIO-MEDICAL SCIENCE 03, no. 09 (2023): 467–83. https://doi.org/10.5281/zenodo.8337782.

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Herbs contamination by some pathogenic bacteria poses a major threat to the usage as a treatment option for diarrheagenic bacteria. This study was carried out to determine the comparative effects of prepared and vended herbs sold within Ado-Ekiti metropolis on selected diarrhogenic bacteria. Herb was prepared in the laboratory under a strict aseptic condition, and a total of 50 vended herbs samples were purchased from vendors across ten different locations within Ado-Ekiti, Ekiti State. All herb samples were analyzed using standard microbiological techniques, total bacteria count, Staphylococc

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Tichý, R., and V. Mejstřík. "Heavy metal contamination from open-pit coal mining in Europe's Black Triangle and possible remediation." Environmental Reviews 4, no. 4 (1996): 321–41. http://dx.doi.org/10.1139/a96-117.

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An area heavily impacted by open-pit coal mining was used to demonstrate risks associated with the presence of toxic metals. The area is located in northern Bohemia, Czech Republic, and is currently categorized as among the most deteriorated landscapes on earth. Open-pit mining and the subsequent landscape restoration may present certain risks of contamination with metals, both in the short and long term. A rather uncertain parameter in this is the behaviour of metals deposited in the mining spoil over the long term. A second important factor is that of reduction in the intensity of agricultur

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Courchesne, François, Jean-Pierre Hallé, and Marie-Claude Turmel. "Bilans élémentaires holocènes et altération des minéraux dans trois sols forestiers du Québec méridional." Géographie physique et Quaternaire 56, no. 1 (2004): 5–17. http://dx.doi.org/10.7202/008601ar.

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RésuméNous avons calculé les flux élémentaires holocènes et le taux d’altération historique dans trois sols forestiers par la méthode du bilan de masse de Brimhallet al. (1991 a, b). Les sols (Hermine : HER ; Rouyn-1 : RN1 ; Rouyn-4 : RN4) se distinguent par leur matériel d’origine et leur niveau d’exposition aux dépôts atmosphériques de métaux traces. L’indice de changement volumétrique (ICV) calculé avec Zr est positif (expansion) dans RN1 et dans les horizons B de HER et est positivement corrélé à la concentration en C organique et en oxydes de Al et Fe. L’analyse des profils permet de déga

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Saab, Hamid Bou, Nadine Nassif, Antione G. El Samrani, Rosette Daoud, Samir Medawar, and Naim Ouaïni. "Suivi de la qualité bactériologique des eaux de surface (rivière Nahr Ibrahim, Liban)." Revue des sciences de l'eau 20, no. 4 (2008): 341–52. http://dx.doi.org/10.7202/016909ar.

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Résumé Le bassin versant du Narh Ibrahim est classé parmi les sites du patrimoine mondial. Les rejets sauvages solides et liquides ont un impact important sur le développement d’une contamination bactériologique tout au long de la rivière. Dans cette étude, des paramètres physico-chimiques et bactériologiques ont été suivis sur neuf sites de prélèvement qui couvrent la rivière Nahr Ibrahim de son amont jusqu’à son estuaire. L’ensemble des paramètres est étudié pendant des périodes de l’année caractérisées par un temps sec ou un temps de crue. Au cours de ces périodes, ces paramètres ont révélé

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Fenech, C., K. Nolan, L. Rock, and A. Morrissey. "Development of a decision-support tool for identifying the most suitable approach to achieve nitrate source determination." Environ. Sci.: Processes Impacts 16, no. 11 (2014): 2564–70. http://dx.doi.org/10.1039/c3em00620d.

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A decision-support tool using IDEF0 modelling methodology was developed to differentiate point and diffuse sources of nitrate contamination. Using this tool, the environmental hazards and processes resulting from nitrate contamination can be better understood and appropriate actions for limiting the impacts of such can be taken.

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Christenson, Kurt. "Rinsing: A Critical Process in Contamination Removal." Journal of the IEST 40, no. 5 (1997): 45–50. http://dx.doi.org/10.17764/jiet.2.40.5.y8p9788532364675.

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The rinsing process of silicon wafers is normally carried out in an "overflow" bath in which water flows past the wafers at average velocity of 1 cm/s. But the velocity is zero at the wafer surface. The efficiency of rinsing is limited by the rate at which contaminants diffuse away from the silicon surface and into the flow stream. This paper reports the improvement in rinsing efficiency gained by repeating a 1-min cycle of first allowing the contaminants to diffuse into the stagnant layer and then "dumping" the rinse tank to remove most of the contaminated stagnant layer. A further 10-fold im

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Lanman, Adam E., Jonathan C. Pober, Nicholas S. Kern, Eloy de Lera Acedo, David R. DeBoer, and Nicolas Fagnoni. "Quantifying EoR delay spectrum contamination from diffuse radio emission." Monthly Notices of the Royal Astronomical Society 494, no. 3 (2020): 3712–27. http://dx.doi.org/10.1093/mnras/staa987.

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ABSTRACT The 21 cm hyperfine transition of neutral hydrogen offers a promising probe of the large-scale structure of the universe before and during the Epoch of Reionization (EoR), when the first ionizing sources formed. Bright radio emission from foreground sources remains the biggest obstacle to detecting the faint 21 cm signal. However, the expected smoothness of foreground power leaves a clean window in Fourier space where the EoR signal can potentially be seen over thermal noise. Though the boundary of this window is well defined in principle, spectral structure in foreground sources, ins

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ROOKLIDGE, S. "Environmental antimicrobial contamination from terraccumulation and diffuse pollution pathways." Science of The Total Environment 325, no. 1-3 (2004): 1–13. http://dx.doi.org/10.1016/j.scitotenv.2003.11.007.

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Baker, Andy. "Fluorescence Tracing of Diffuse Landfill Leachate Contamination in Rivers." Water, Air, and Soil Pollution 163, no. 1-4 (2005): 229–44. http://dx.doi.org/10.1007/s11270-005-0279-9.

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Conrad, Logan R., Rosalia O’Brien, Delondrae Carter, et al. "SKYSURF-7: Exploring PSF Contamination in Diffuse Sky Measurements with HST." Research Notes of the AAS 9, no. 3 (2025): 54. https://doi.org/10.3847/2515-5172/adbbe9.

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Abstract Project SKYSURF constrains Extragalactic Background Light and diffuse light using over 200,000 images in the Hubble Space Telescope (HST) archive. However, it is possible that the faint wings of the point-spread function (PSF), which characterizes the distribution of light in individual stars and galaxies in an image, could contaminate or skew measurements of the sky surface brightness (sky-SB). Using the HST Wide Field Camera 3/IR F140W filter, we investigate whether a realistic HST PSF contaminates SKYSURF sky-SB measurements. Using the image simulation tool GalSim we characterize p

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Li, Yong, and Jiabao Zhang. "Agricultural diffuse pollution from fertilisers and pesticides in China." Water Science and Technology 39, no. 3 (1999): 25–32. http://dx.doi.org/10.2166/wst.1999.0129.

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Although contamination of waterbodies by nitrates and pesticides in rural regions as the main element of agricultural diffuse pollution has been gradually realised by agricultural and environmental scientists, and supported by rapidly growing pollution cases, it is still not considered a high priority environmental problem in China because of a lack of efficient monitoring programs to provide systematic analytical data. This paper brings together evidence in terms of surface water, groundwater and the agricultural ecosystem to show the current situation of water contamination related to excess

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Sadeghian, Parastoo, and Sasan Sadrizadeh. "Impact of design parameters of diffuse ceiling ventilation systems on indoor air quality in school classrooms: a numerical assessment." E3S Web of Conferences 362 (2022): 14001. http://dx.doi.org/10.1051/e3sconf/202236214001.

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Indoor air quality directly impacts an individual’s productivity and health condition in office buildings, hospitals, schools, and residential buildings. Diffuse ceiling systems have been used widely in classrooms at schools that have high heat loads. In this regard, this study investigated the role of diffuse ceiling design parameters, including active diffuse panels’ configuration and contamination locations, on indoor air quality in a classroom. The spread of airborne infectious diseases was simulated using computational fluid dynamics techniques. The results revealed that the central confi

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Abdul Rida, Abdul Motalib Mohammed. "L’effet de la contamination des sols sur le rôle lombricien dans la disponibilité du potassium." Revue d'Écologie (La Terre et La Vie) 50, no. 2 (1995): 141–52. http://dx.doi.org/10.3406/revec.1995.2165.

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