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276 results on '"Polluted water"'

254. Pas op voor emissie van carbendazim

Subjects
lozing, PPO Bloembollen en Bomen, vollegrondsteelt, surface water, disposal, pesticides, outdoor cropping, emissie, oppervlaktewater, Nursery Stock-Flower Bulbs, polder boards, pesticiden, emission, verontreinigd water, polluted water, waterschappen
Abstract

Waterschappen treffen al jaren diverse bestrijdingsmiddelen aan in het oppervlaktewater. Carbendazim is een van de boosdoeners. Uit onderzoek blijkt dat een deel van het middel na een bespuiting van het gewas af kan spoelen. Dit kan problemen veroorzaken wanneer op het oppervlaktewater geloosd wordt.

Published
2006

255. Fish from industrially polluted freshwater as the main source of organochlorinated pollutants and increased frequency of thyroid disorders and dysglycemia

Author

Langer, Pavel, Kočan, Anton, Tajtaková, Mária, Petrík, Ján, Chovancová, Jana, Drobná, Beáta, Jursa, Stanislav, Rádiková, Žofia, Koška, Juraj, Kšinantová, Lucia, Hučková, Miloslava, Imrich, Richard, Wimmerová, Soňa, Gašperíková, Daniela, Shishiba, Yoshimasa, Trnovec, Tomáš, Šeböková, Elena, and Klimeš, Iwar

Subjects
*POLYCHLORINATED biphenyls, *EFFECT of contaminated sediments on fishes, *INDUSTRIAL pollution, *ORGANOCHLORINE compounds, *BLOOD plasma, *GLUCOSE, *BIPHENYL compounds, *HEXACHLOROBENZENE, *DICHLOROETHYLENE, *TRICHLOROETHANE, *PITUITARY hormones, *THYROID hormones
Abstract

In a certain area of Michalovce district in East Slovakia, heavy industrial pollution by polychlorinated biphenyls (PCBs) developed in 1955–1984 and very high PCB levels in environmental and human samples are still persisting. Recently, a total of 2045 adults from this and the surrounding background pollution area have been examined using questionnaire data, thyroid volume by ultrasound (ThV), urinary iodine and serum levels of 15 PCB congeners, hexachlorobenzene (HCB), 2,2′-2-bis(4-chlorobiphenyl)-1,1-dichloroethylene (DDE), 2,2′-bis(4-chlorophenyl)-1,1,1-trichloroethane (DDT), α-, β- and γ-hexachlorocyclohexane (HCH), thyrotropin (TSH), free thyroxine (FT4), anti-thyroperoxidase antibodies (TPOab) and fasting glucose. As based on our previous findings of strikingly high level of PCBs in fish from high pollution area (e.g. mean level of 375430ng/g lipid) and considerably lower, but still relatively high level in background pollution area (e.g. mean PCB level of 5150ng/g), the information on the frequency of fish meals and approximate annual consumption of fish from local waters was obtained by questionnaires. The association of contaminated fish consumption with very high blood levels of PCBs, DDE and HCB and increased ThV as well as with increased frequency of positive TPOab, high values of FT4 and impaired fasting glucose (IFG) was found. These associations were also confirmed in 16 marital pairs from high pollution area with very high PCB level in both members associated with high fish consumption. It was concluded that, due to persistent heavy pollution of waters, soil and food chain namely by PCBs, but also by pesticides (e.g. DDE and HCB) resulting from their previous extensive use in agriculture, the fish from local waters still remains the most important source of these toxic pollutants which results in considerable adverse health effects. [Copyright &y& Elsevier]

Published
2007
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256. TROUBLE IN RIO.

Author

GUTMAN, MATT

Abstract

DAVID MUIR (ABC NEWS) (Off-camera) We turn to Rio tonight and the major health concern there on the eve of the summer Olympics. Tonight, we have the results of an ABC News investigation. [ABSTRACT FROM PUBLISHER]

Published
2016

258. Removal efficiency of Pb, Cd, Cu and Zn from polluted water using dithiocarbamate ligands

Author

Sami A. Zabin and Rajab Abu-El-Halawa

Subjects
Metal ions in aqueous solution, Inorganic chemistry, 02 engineering and technology, 010501 environmental sciences, 01 natural sciences, Metal, Polluted water, Adsorption, medicine, Dithiocarbamate, lcsh:Science (General), 0105 earth and related environmental sciences, chemistry.chemical_classification, Chemistry, Ligand, Dithiocarbamates, Heavy metals, 021001 nanoscience & nanotechnology, Removal efficiency, Binding ability, visual_art, visual_art.visual_art_medium, 0210 nano-technology, Activated carbon, medicine.drug, lcsh:Q1-390
Abstract

Presently, there is increased attention and focus on heavy metals, which are becoming one of the most serious environmental problems due to their adverse health effects. These toxic heavy metals are not easily degraded and require removal from polluted water to protect people and the environment. The purpose of this work was to prepare two types of dithiocarbamate ligands, one aliphatic (diethyldithiocarbamate) and the other aromatic (diphenyldithiocarbamate), and to use them as chelators to remove Pb, Cd, Cu and Zn from polluted water. Dithiocarbamates were selected because they have good binding ability and can precipitate metal ions as complexes. The metal removal efficiency is compared between both ligands and also compared to the efficiency of activated carbon in an adsorption process to remove the same metals. The investigation results indicated that the diphenyldithiocarbamate ligand was more efficient in removing the studied metals than the diethyldithiocarbamate analogues. Additionally, the metal removal efficiency of the diphenyldithiocarbamate ligand was more effective than using the activated carbon method.

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272. ИНТЕНСИФИКАЦИЯ ПРОЦЕССА СОРБЦИИ НЕФТИ ОТХОДАМИ УБОРКИ ГОРОДСКИХ ТЕРРИТОРИЙ

Author

Прохорова Светлана Викторовна, Степанова С. В., Прохорова Светлана Викторовна, and Степанова С. В.

Abstract

Перспективным методом удаления нефти и нефтепродуктов с поверхности воды выступает сорбция. В качестве адсорбентов все большее применение находят различные отходы растительного происхождения. Установлено, что максимальная сорбционная емкость выбранного сорбционного материала составляет 11,9 г/г., A promising method for removal of oil and oil products from water surface acts as a sorption. As adsorbents increasing the use of waste of plant origin. Found that the maximum sorption capacity of the selected sorption material is 11.9 g/g.

273. Ondersteuning project 'Schone Bronnen' met oplossingen voor waterkwaliteitsproblemen : thema: emissiereductie gewasbeschermingsmiddelen BO-06-009-005

Author

Werd, R. de, Beltman, W., Wenneker, M., Zeeland, M. van, Lans, A. van der, Maas, B. van der, Werd, R. de, Beltman, W., Wenneker, M., Zeeland, M. van, Lans, A. van der, and Maas, B. van der

Abstract

Posterpresentatie. Gewasbeschermingsmiddelen en biociden veroorzaken waterkwaliteitsproblemen. Binnen het project ‘Schone Bronnen’ zoeken de deelnemers aan het ‘Convenant Duurzame Gewasbescherming’ naar oplossingen. Van een aantal stoffen en emissieroutes is nog onvoldoende bekend om tot oplossingen te komen

275. Esquistosomiasis mansónica

Author

Jorge Luis Pérez León, Farah María Kindelán Mercerón, and Aymara Asprón Fernández

Subjects
child, lcsh:R5-920, lcsh:Internal medicine, parasitic disease, schistosomiasis masoni, polluted water, lcsh:Medicine (General), lcsh:RC31-1245, Brazil
Abstract

Se presenta el caso clínico de un paciente de 10 años de edad, quien asistió al puesto médico de Santa Johana, municipio de Itamarandiba, estado brasileño de Minas Gerais, acompañado de su madre, por presentar dolor abdominal de tipo cólico, con deposiciones diarreicas mezcladas con sangre y falta de apetito, además ligera palidez cutaneomucosa, lo cual se correspondían con una esquistosomiasis mansónica. Se le realizaron los exámenes pertinentes y se le indicó el tratamiento oportuno, de manera que el niño evolucionó favorablemente

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