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111.
Polybrominated diphenyl ethers in influents,suspended particulate matter,sediments, sewage treatment plant and effluents and biota from the Netherlands 总被引:16,自引:0,他引:16
de Boer J Wester PG van der Horst A Leonards PE 《Environmental pollution (Barking, Essex : 1987)》2003,122(1):63-74
Polybrominated diphenyl ethers (PBDEs) have been determined in 133 samples of suspended particulate matter (SPM), sediments, sewage treatment plant (STP) influents and effluents, fish and mussels from various locations in The Netherlands, as a part of a large Dutch national study on estrogenic contaminants in the aquatic environment (LOES project). Some PBBs were also analysed but not found in any of the samples at detectable levels. PBDEs and PBBs were included in this study because indications of long term effects on the balance of endocrine systems were found in the literature. High concentrations of decaBDE (up to 4600 g/kg dry weight) were found in SPM from the Western Scheldt. These levels are possibly related to spillage during use of PBDEs in industries upstream the river Scheldt in Belgium. SPM was identified as an important carrier for higher brominated diphenyl ethers in the aquatic environment. DecaBDE was not found at detectable levels in flounder, bream and mussels. The bioaccumulation of decaBDE in these fish and shellfish samples is apparently limited. Lower brominated PBDE congeners (tetra/penta) were also found in the Western Scheldt as well as in the Rhine delta and the river Meuse, but in much lower concentrations than the decaBDE. In contrast with decaBDE, the tetra and pentaBDEs were found in biota. It was concluded that at least a small part of the PBDE can pass STPs. 相似文献
112.
Yokosawa Tadahiro Prestat Eric Polly Robert Bouby Muriel Dardenne Kathy Finck Nicolas Haigh Sarah J. Denecke Melissa A. Geckeis Horst 《Environmental science and pollution research international》2019,26(6):5282-5293
Environmental Science and Pollution Research - Transformation products of two-line ferrihydrite associated with Lu(III) were studied after 12 years of aging using aberration-corrected... 相似文献
113.
Trevor McIntyre Horst Bornemann Joachim Plötz Cheryl A. Tosh Marthán N. Bester 《Marine Biology》2011,158(9):2125-2139
The at-sea behaviour of marine top predators provides valuable insights into the distribution of prey species and strategies
used by predators to exploit patchily distributed resources. We describe the water column usage and dive strategies of female
southern elephant seals from Marion Island tracked between 2004 and 2008. Dives representing increases in forage effort were
identified using a method that combines dive type analyses and the calculation of relative amounts of time that animals spend
in the bottom phases of dives. Results from this analysis indicate that female elephant seals from Marion Island tend to display
lower levels of forage effort closer to the island and display intensive opportunistic forage bouts that occur at a minimum
distance of approximately 215 km from the island. Females from Marion Island dived deeper and for longer periods of time,
compared to females from other populations. Most animals displayed positive diel vertical migration, evidently foraging pelagically
on vertically migrating prey. A few animals displayed periods of reverse (negative) diel vertical migration, however, diving
to deeper depths at night, compared to daytime. This behaviour is difficult to explain and prey species targeted during such
periods unknown. Our results illustrate plasticity in foraging behaviour of southern elephant seals, as well as inter-population
differences in forage strategies. 相似文献
114.
Hoffmeyer F Weiss T Lehnert M Pesch B Berresheim H Henry J Raulf-Heimsoth M Broding HC Bünger J Harth V Brüning T 《Journal of environmental monitoring : JEM》2011,13(1):212-218
It was the aim of this study to evaluate the effect of different devices on the metal concentration in exhaled breath condensate (EBC) and to prove whether working conditions in different welding companies result in diverse composition of metallic elements. The influence of two collection devices (ECoScreen, ECoScreen2) on detection of metallic elements in EBC was evaluated in 24 control subjects. Properties of ECoScreen and a frequent use can alter EBC metal content due to contamination from metallic components. ECoScreen2 turned out to be favourable for metal assessment. Concentrations of iron, nickel and chromium in EBC sampled with ECoScreen2 were compared between non-exposed controls and industrial welders. Metal concentrations in EBC were higher in 36 welders recruited from three companies. Exposure to welding fumes could be demonstrated predominantly for increased iron concentrations. Concentrations of iron and nickel differed by working conditions, but chromium could not be detected in EBC. 相似文献
115.
Rennio F. de Sena José L. Tambosi Silvia L. Floriani Elaine Virmond Horst Fr. Schröder Regina F.P.M. Moreira Humberto J. José 《Waste management (New York, N.Y.)》2009,29(9):2574-2581
The biosolids (BS) generated in the wastewater treatment process of a meat processing plant were monitored and the priority pollutant content was characterized. The trace metal and organic pollutant content – polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/PCDF) – were determined quantitatively and compared to guideline limits established by the US EPA and EU. PCBs were not detected in the solid samples, while trace metals, PAHs and PCDD/PCDF were detected in concentrations below the limits established by international standards. Toxic equivalent factors were evaluated for the biosolids, and the results proved that these wastes can be safely deposited on land or used in combustion/incineration plants. Since no previous data were found for meat processing waste, comparisons were made using municipal sewage sludge data reported in the literature. Since, this report monitored part of the priority pollutants established by the US EPA for meat and poultry processing wastewater and sludge, the results verified that low pollution loads are generated by the meat processing plant located in the southern part of Brazil. However, the BS generated in the treatment processes are in accordance with the limits established for waste disposal and even for soil fertilizer. 相似文献
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