Results 261 to 270 of about 598,757 (302)
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Photochemistry of iron in aquatic environments
Environmental Science: Processes & Impacts, 2020Light-induced reduction of Fe(iii) delivers Fe(ii) as nutrient or substrate for growth of planktonic or sedimentary organisms. Biological uptake, as well as chemical or microbial oxidation of Fe(ii) close this photochemically driven iron cycle.
Ulf Lueder +3 more
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Methylation of Selenium in the Aquatic Environment
Science, 1976Conversion of inorganic and organic selenium compounds to volatile selenium compounds (dimethyl selenide, dimethyl diselenide, and an unknown compound) by microorganisms in lake sediment has been observed. This conversion could also be effected by pure cultures of bacteria and fungi.
Y K, Chau +4 more
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Speciation of Iron in the Aquatic Environment
Water Environment Research, 2014ABSTRACT: Iron is one of the basic metals occurring in the aquatic environment and it is considered a macroelement with regard to live organisms. This metal has a broad range of applications that, together with factors conditioning its chemical transitions, results in the occurrence of many iron species in water. Depending on water and land development
Anna, Rabajczyk, Jacek, Namieśnik
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Nano-plastics in the aquatic environment
Environmental Science: Processes & Impacts, 2015Nano-sized plastics originate from direct release of nanoparticles or from degradation of discarded plastic and mainly enter the aquatic food chain through uptake by algae or herbivorous invertebrates, and then continue up the food web.
K, Mattsson, L-A, Hansson, T, Cedervall
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Endocrine disrupters in the aquatic environment
Environmental Science and Pollution Research, 1997Possible mechanisms to explain endocrine effects on reproduction and sex differentiation are presented for selected pharmaceuticals, agrochemicals, industrial chemicals and plant sterols which are known to be present in the aquatic environment. Disruptions of the hormonal coordination can be induced by xenobiotics on various levels of the hierachically
P, Stahlschmidt-Allner +3 more
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Determination of phthalates in aquatic environments
Bulletin of Environmental Contamination and Toxicology, 1986Determination de divers phtalates (dimethylphtalate, dibutyl phtalate, benzoylbutylphtalate et di(ethylhexyl-2) phtalate dans les sediments, l'eau et les organismes presents dans deux rivieres du sud de la Suede pres des industries consommant des phtalates. Dosage par chromatographie la phase gazeuse avec detection par capture electronique.
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2001
The importance of understanding the relationship between water quality, stress and disease cannot be overemphasized. The aquatic environment is very different from the terrestrial one but most husbandry problems may be avoided by routine monitoring of water quality. This chapter introduces physical properties, pH, hardness, alkalinity, dissolved gasses
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The importance of understanding the relationship between water quality, stress and disease cannot be overemphasized. The aquatic environment is very different from the terrestrial one but most husbandry problems may be avoided by routine monitoring of water quality. This chapter introduces physical properties, pH, hardness, alkalinity, dissolved gasses
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Pollution and parasitism in the aquatic environment
International Journal for Parasitology, 1987Abstract The studies of aquatic parasitology and of aquatic pollution effects both have experienced increasing interest during the recent fifteen years. Although considerable effort has been spent on studying the role of pollution as a cause or a trigger of anomalies, tumors and infectious diseases in aquatic organisms, the interactions between ...
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Kinetics for the aquatic environment
Environmental Science & Technology, 1981J F, Pankow, J J, Morgan
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