Resultados de búsqueda - "Heavy metal"

Effects of earthworms on soil organic matter and nutrient dynamics at a landscape scale over decades por Lavelle, Patrick, Charpentier, Fabienne, Villenave, Cécile, Rossi, Jean Pierre, Derouard, Laurent, Pashanasi Amasifuen, Beto, Andre, Jean, Ponge, Jean François, Bernier, Nicolas

“…Huge increases in productivity in developed countries have been accompanied by a severe depletion of “soil quality” in terms of resistance to erosion, organic contents, concentrations of heavy metals, and pesticide residues. Agricultural intensification in developing countries has been less successful because of various socioeconomic limitations. …”
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Slam – en outnyttjad resurs i skogsbruket por Mikael, Sörhult, Olof , Högqvist

“…The problem is that the sludge contains organic pollutants and heavy metals. Sewage sludge also contains pathogens, but they are killed efficiently when the sludge is converting to pellets. …”
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Chemical hazards in pork and health risk: A review por Tran Thi Tuyet Hanh, Nguyen Thi Minh Duc, Phuc Pham Duc, Chu Van Tuat, Hung Nguyen-Viet

“…The chemical hazards mentioned in this review are mostly common toxic chemicals such as heavy metals, residues of veterinary drugs, dioxin, additives and toxic substances generated during meat processing. …”
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Genetic variation in common cattail (Typha latifolia) in southern Sweden por Fahlgren, David

“…Typha spp has potential to be used for bioremediation of polluted waste water as they tolerate high amounts of pollutants and are capable of taking up chemical pollutants and heavy metals. They also have some level of tolerance to salinity. …”

Speciation of metals in contaminated sediments in the Kalmar County, Sweden : an initial approach toward sediment mining por Fathollahzadeh, Homayoun

“…Moreover, total digestion results turn out that Oskarshamn in comparing to Malmfjärden sediments tended to result in larger contents of total extractable heavy metals (except Al), which is strongly attributed to factories, wastewater treatment plants, and ships traffic in Oskarshamn basin and diffusive sources in Malmfjärden. …”

Förorenad mark blir park por Djurberg, Agnes, Montgomery, Emelie

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Litter decomposition rates of four species of agroecological importance in the Peruvian coast and Andean highland por Samaniego Vivanco, Tomás Daniel, Ramirez Aparicio, Jorge Adrian, Solórzano Acosta, Richard Andi

“…The leaf litter of avocado and eucalyptus (tree) had periods of accumulation and release of heavy metals such as Cd. The initial C/N ratio was one of the main factors related to the nutrient decomposition rate; in contrast, there were no significant relationships with soil properties at the study sites.…”
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Grain Cadmium And Zinc Concentrations In Maize Influenced By Genotypic Variations And Zinc Fertilization por Fahad, Shah, Hussain, Saddam, Saud, Shah, Hassan, Shah, Shan, Darakh, Chen, Yutiao, Deng, Nanyan, Khan, Fahad, Wu, Chao, Wu, Wei, Shah, Farroq, Ullah, Bashir, Yousaf, Muhammad, Ali, Saqib, Huang, Jianliang

“…Furthermore, the feasibility of rubber ash maybe tested under different climatic and edaphic conditions against other heavy metals and other crops as well.…”
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Lead in agricultural soils and cultivated pastures irrigated with river water contaminated by mining activity por Orellana, E.P., Custodio, M., Bastos, C., Cuadrado, W.

“…Soil and pastures samples collected from plots irrigated with river water contaminated with heavy metals at a depth of 0-20 cm. The content of Pb determined by the atomic absorption spectrophotometry. …”
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Frankia-actinorhizal symbiosis: a non-chemical biological assemblage for enhanced plant growth, nodulation and reclamation of degraded soils por Bhattacharyya, Pranaba Nanda, Islam, Nazim Forid, Sarma, Bhaskar, Nath, Bharat Chandra, Al-Ani, Laith Khalil Tawfeeq, Lesueur, Didier

“…Novel and putative microorganisms isolated from the actinorhizal may be used for bio-transformation of allelochemicals and toxic heavy metals into compounds with modified biological properties, opening up novel avenues for mediating microbial degradation of putative allelochemicals that would otherwise accumulate at phytotoxic levels in soil. …”
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Groundnut (Arachis hypogaea L.) and cowpea (Vigna unguiculata L. Walp) growing in Ethiopia are nodulated by diverse rhizobia por Degefu, Tulu, Woldemeskel, Endalkachew, Ataro, Zikie, Fikre, Asnake, Amede, Tilahun, Ojiewo, Christopher Ochieng

“…The majority of the isolates showed an intrinsic resistance to antibiotics (µg/ml), Chloramphenicol (5 and 15), Lincomycin (100), Novobiocin (0.5 and 1.5), and Erythromycin (10 and 20) and to heavy metals manganese sulphate (500) and copper chloride (100). …”
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Markskador vid GROT-uttag : en enkätstudie hos skogstjänstemän por Alenius, Peter

“…This affecting on the nature in a negative way and especially in rivers and lakes that are affected by siltation and acidification leading to increased levels of heavy metals and methyl mercury. The purpose of this study was to investigate why there is damage to the ground when working with the slash in forest management from the forest officer point of view. …”

Examining dietary cadmium exposure levels within the population of a metal recycling village in Bac Ninh Province, Vietnam por Hagberg, Marcus

“…Consumption of food crops contaminated with heavy metals is a major problem in many developing countries. …”

Phycoremediation of pesticides using microalgae por Ardal, Embla

“…Microalgae are mostly studied due to their high capacity in biosorbing heavy metals. Removal of organic pollutants such as pesticides has been reported, however in fewer studies. …”

Variationer i löslighet (Kd) inom Kindla och dess beroende av pH por Eriksson, Adam

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Technical specifications for solid biofuels por Belbo, Helmer

“…Net calorific value is highly demanded by both producers and consumers and should be obligatory information for most kinds of solid biofuels. Content of heavy metals and Cesium 137 should be stated if it is high enough to cause risk for restrictions regarding ash recycling in crop land and forest. …”
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Biofortified indica rice attains iron and zinc nutrition dietary targets in the field por Trijatmiko, Kurniawan R, Dueñas, Conrado, Tsakirpaloglou, Nikolaos, Torrizo, Lina, Mae Arines, Felichi, Adeva, Cheryl, Balindong, Jeanette, Oliva, Norman, Sapasap, Maria V, Borrero Correa, Jaime C., Rey, Jessica, Francisco, Perigio, Nelson, Andrew, Nakanishi, Hiromi, Lombi, Enzo, Tako, Elad, Glahn, Raymond P., Stangoulis, James C.R., Chadha-Mohanty, Prabhjit, Johnson, Alexander A.T., Tohme, Joseph M., Barry, Gerard, Slamet-Loedin, Inez H.

“…The Caco-2 cell assay indicated that Fe is bioavailable. No harmful heavy metals were detected in the grain. The trait remained stable in different genotype backgrounds.…”
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Industrial-Scale Composting of Rice Straw and Sewage Sludge por Rodríguez-Carretero, Isabel, Canet, Rodolfo, Quinones, Ana, Pérez-Piqueres, Ana

“…The complete characterisation (moisture, pH, electrical conductivity, total, oxidisable and water-soluble organic carbon, humic substances, organic and mineral nitrogen, macronutrients, micronutrients, heavy metals) of starting materials, samples taken periodically and final composts were carried out. …”
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MILK Symposium review: Foodborne diseases from milk and milk products in developing countries—Review of causes and health and economic implications por Grace, Delia, Wu, F., Havelaar, A.H.

“…Important chemical hazards are mycotoxins, dioxins, and heavy metals. Some interventions have been shown to have unintended and unwanted consequences, so formative research and rigorous evaluation should accompany interventions. …”
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Exploring and Screening Rhizobia Nodulating Forage Legumes of Alfalfa (Medicago Sativa) and Vetch (Vicia Villosa) Growing in Ethiopia por Martsa, A.

“…The isolates also metabolized a broader range of carbon and nitrogen sources and tolerated varying concentrations of heavy metals and antibiotics; these would enable them to thrive on marginalized soils. …”
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