Surface waters
Influence of dissolved sulfides on copper complexation in surface waters using voltammetric methods.
... INFLUENCE OF DISSOLVED SULFIDES ON COPPER COMPLEXATION IN SURFACE WATERS USING VOLTAMMETRIC METHODS. In this work a sulide quantiication protocol using voltammetric methods was developed to evaluate the ...
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Ingestion induced health risk in surface waters near tailings ponds (North-Western Romania)
... Mining activities in the Baia Mare area consist in non-ferrous sulfidic ores extraction, processing, flotation concentration of lead, copper, zinc and precious metals. Liquid effluents from these operations and from mine ...
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Calcification in the planktonic foraminifera <i>Globigerina bulloides</i> linked to phosphate concentrations in surface waters of the North Atlantic Ocean
... the surface waters of the North Atlantic, are compared with in situ carbonate ion concen- trations ([CO 2− 3 ]), optimum growth conditions (implied from ...
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Escherichia coli in the Surface Waters and in Oysters of Two
... Salinity values, larger at the external point and smaller at the internal point, were similar to those reported by Santos (2003) who studied the physical-chemical and microbiological parameters in July and August 2002 in ...
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Ocean acidification state in western Antarctic surface waters: drivers and interannual variability
... regimes such as, the marginal/seasonal ice zone, fronts, coastal shelves, and polynyas. Discrete surface water was sampled underway for analysis of total alkalinity (A T ), total dissolved inorganic carbon (C T ) ...
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Seasonal and latitudinal patterns of pelagic community metabolism in surface waters of the Atlantic Ocean
... (1999). Surface water (5 m) was gently siphoned into narrow mouth 125 ml replicated winkler bottles for the quantification of initial oxygen concentration, net community production ...
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Increasing iron concentrations in surface waters – a factor behind brownification?
... The ability of OM to form complexes with Fe is related OM quality, since Fe associates preferentially with high MW OM (Pennanen and Frisk, 1984). However, it appears un- likely that changes in OM quality would explain ...
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Assessment of pollution risk ascribed to Santa Margarida Military Camp activities (Portugal)
... Abstract Santa Margarida Military Camp (S.M.M.C.) is the only one Portuguese military training area, including firing ranges for tactical military manoeuvres of mechan- ised divisions. For this reason, various negative ...
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Different seasonality of pelagic and benthic <i>Thaumarchaeota</i> in the North Sea
... Spatial variability in HPH crenarchaeol, thaumarchaeotal 16S rRNA gene abundance and transcriptional activity was observed in the surface waters, corresponding well with the di ff erent [r] ...
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Study area, sampling and analytical procedure
... • Abstract: A survey of the petroleum aromatic hydrocarbons leveis on the surface waters of the São Sebastião Channe~ São Paulo, Brazil is presented.. The survey was done in ord[r] ...
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Quality of the surface and ground water in the municipality of Subotica
... the surface and ground water in the municipality of Subotica is significantly ...the surface waters predominantly has origin in different human ...
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Direct oceanic emissions unlikely to account for the missing source of atmospheric carbonyl sulfide
... in surface waters of the tropical Atlantic, Pacific and Indian oceans and (ii) a further improved global box model to show that direct OCS emissions are unlikely to account for the missing ...the ...
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RBRH vol.21 número3
... SPONGBERG, A. L.; WITTER, J. D.; ACUNA, J.; VARGAS, J.; MURILLO, M.; UMANA, G.; GOMEZ, E.; PEREZ, G. Reconnaissance of selected PPCP compounds in Costa Rican surface waters. Water Research, v. 45, n. 20, p. ...
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Spatial and temporal variations in dissolved and particulate organic nitrogen in the equatorial Pacific: biological regulations and physical influences
... are normally found before sunrise, which may reflect zooplankton migration to the top few meters during the night (Champalbert et al., 2003). Our model does not simulate zooplankton vertical migration. Here, we assume ...
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Dissolved iron distribution in the tropical and sub tropical South Eastern Pacific
... the surface water, that is nutrient-depleted due to bi- ological activity, and the subsurface water, that is refuelled by mineralization of sinking organic ...isopycnal surface or lat- eral advection) can ...
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Microbial activities and dissolved organic matter dynamics in oil-contaminated surface seawater from the Deepwater Horizon oil spill site.
... oil-contaminated surface water sampled near the spill site two weeks after the onset of the blowout were greatly affected by activities of microbes associated with macroscopic oil ...in surface ...
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J. Braz. Chem. Soc. vol.22 número8
... 2007, surface waters were collected from 21 sampling points in Barcarena City in Northern Region of Brazil: one sampling point located in a stream that receives discharge of wastewater from a kaolin ...
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A rapid small scale evaluation of ultrafiltration performance for surface water treatment at Alcantarilha’s WTW (Algarve, Portugal)
... for surface waters with low to moderate SUVA values, direct UF performance is equivalent or better than the conventional treatment in terms of residual turbidity, while UV 254nm and TOC residuals require ...
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Hydrogeological study of A High Mountain Area (Serra da Estrela, Central Portugal): a multidisciplinary approach Estudo hidrogeológico de uma área montanhosa (Serra da Estrela, Portugal central): uma abordagem multidisciplinar
... local surface waters and shallow and deep ground- waters will be presented and ...of surface and groundwater ocurrences. These waters were monitored for one hydrologic ...
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Photo-lability of deep ocean dissolved black carbon
... In the oceans, the high molecular weight fraction (>1000 Da) of DBC (condensed aromatics) was recently re- ported to have an apparent radiocarbon age of 18 000 ± 3000 years before present (Ziolkowski and Druffel, ...
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