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Volatile organic compounds in urban rivers and their estuaries in Osaka, Japan.
1997
Yamamoto K. | Fukushima M. | Kakutani N. | Kuroda K.
Trace metals transport and behaviour in the Mediterranean estuary of Acheloos river.
1997
Dassenakis M. | Scoullos M. | Gaitis A.
Effects of aluminium in acid streams on growth and sporulation of aquatic hyphomycetes
1997
Chamier, A.C. | Tipping, E. (Institute of Freshwater Ecology, The Ferry House, Ambleside, Cumbria LA22 OLP (United Kingdom))
Relationships between river sediment characteristics and trace metal concentrations in tubificid worms and chironomid larvae
1997
Bervoets, L. | Blust, R. | Wit, M. de | Verheyen, R. (Department of Biology, University of Antwerp (UIA), Universiteitsplein I, 2610, Wilrijk (Belgium))
Polychlorinated biphenyls and organochlorine pesticides in eels (Anguilla anguilla L.) from Welsh rivers
1997
Weatherley, N.S. | Davies, G.L. | Ellery, S. (Environment Agency, Rio House, Waterside Drive, Aztec West, Almondsbury, Bristol BS12 4UD (United Kingdom))
Trout farm effluents: characterization and impact on the receiving streams
1997
Boaventura, R. | Pedro, A.M. | Coimbra, J. | Lencastre, E. (Departamento de Engenharia Quimica, Faculdade de Engenharia, 4099, Porto Codex (Portugal))
The effects of conservation tillage practices on benthic invertebrate communities in headwater streams in southwestern Ontario, Canada
1997
Barton, D.R. | Farmer, M.E.D. (Department of Biology, University of Waterloo, Ontario, N2L 3G1 (Canada))
Distribution of polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans and non-ortho coplanar polychlorinated biphenyls in river and offshore sediments
1997
Ohaski, Y. | Matsueda, T. | Kurokawa, Y. (Environmental Science Division, Fukuoka Institute of Health and Environmental Sciences, 39 Mukaeda, Mukaizano, Dazaifu, Fukuoka 818-01 (Japan))
Isolation, identification and bioremediation potential of oil-degrading bacteria from Manila Bay and Pasig River [Philippines]
1997
Dela Cruz, J. | Halos, P.M.
Oil-degrading bacteria were isolated from waters and sediments of the Manila Bay and Pasig River [Philippines]. Five types of bacteria were isolated from Manila Bay and four from Pasig River. The identified crude oil degrading species are Vibrio sp., Alcaligenes sp., Flavobacterium indologenes and Acinetobacter sp. from Manila Bay, and Pseudomonas aeruginosa, Bacillus sp., Micrococcus sp. and Pseudomonas putida from Pasig River. These isolates were identified through morphological and physiological characterization. The bioremediation potential for each of the isolates was assessed. The percentages oil conversion for the bacterial isolates ranged from 2.99 percent - 53.44 percent in one week's time. Alcaligenes sp. exhibited the highest biodegradation potential for all isolates. Statistical analysis revealed that the mean percentages diesel oil conversion by the isolates were significantly higher than their mean percentages crude oil conversion. Pure and mixed cultures did not give significant differences in their mean percentages crude oil conversion
显示更多 [+] 显示较少 [-]Impact of high aluminium loading on a small catchment area (thuringia slate mining area) —geochemical transformations and hydrological transport
1997
Peiffer, Stefan | Beierkuhnlein, Carl | Sandhage-Hofmann, Alexandra | Kaupenjohann, Martin | Bär, Silke
A field study was performed on the effects of acid mine leachate from slate mine tailings seeping into a small river passing through the tailings. Before entering the tailings the river water has high alkalinity which neutralizes acidity upon mixing with leachate within the tailings. Donwstreams of the tailings the pH of the river water ranges about pH = 8, the water contains high concentrations of sulfate (≈1500 μmol/1 and particulate bound aluminium (≈80 μmol/I), but low concentrations of dissolved aluminium (≈3 μmol/1). It is therefore assumed that AI(OH)₃ colloids are precipitated during the neutralisation process and transported out of the tailings. The concentration of particulate bound aluminium along the river shows a strong correlation with the concentration of sulfate, which indicates that particulate bound aluminium is conservative. It therefore seems that under dry weather conditions (under most of the sampling was performed) no chemical retention mechanism exists which confines the distribution of aluminium to a restricted part of the catchment area. In contrast, the white river sediment is rich in both aluminium and sulfate, which suggests the temporary formation of aluminium hydroxosulfate minerals. Favorable (i.e. acidic) conditions may prevail at high discharges where the acidity accumulated in the tailings is flushed into the river with its subsequent acidification.
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