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Kinetic study reveals weak Fe-binding ligand, which affects the solubility of Fe in the Scheldt estuary
The chemistry of dissolved Fe(III) was studied in the Scheldt estuary (The Netherlands). Two discrete size fractions of the dissolved bulk (<0.2 μm and <1 kDa) were considered at three salinities
Predicting metal toxicity revisited: general properties vs. specific effects.
The results indicate that metal properties contribute to the observed effects in relative importances which depend on specific effects, effect levels, exposure times, selected organisms and ambient conditions, and strongly suggests that prediction should be by interpolation rather than by extrapolation of calibrated toxicity data.
The use of tree bark for environmental pollution monitoring in the Czech Republic
The paper describes the use of oak tree (Quercus robur, Quercus petraea) bark for determining the distribution of air pollution by heavy metals and other elements in the western part of the Czech
Arsenic Speciation in Lichens and in Coarse and Fine Airborne Particulate Matter by HPLC–UV–HG–AFS
A three-step sequential extraction procedure with Milli-Q, CaCl2 and H3PO4 was applied for extraction of arsenic species in lichen transplants and airborne particulate matter (fine and coarse
Assessing the quality of biomonitoring via signal-to-noise ratio analysis
Abstract The analysis of the signal-to-noise ratio of a survey is introduced as a means to assess the quality of a survey. Here, the survey signal is defined as the survey variance, and the survey
Adsorption of metals to membrane filters in view of their speciation in nutrient solution.
This article describes the adsorption of five metals to eight types of 0.2-microm membrane filters used for sterilizing a plant (Lemna minor L.) culture medium and proposes using polycarbonate or nylon filters, especially when dealing with low volumes of high pH and low metal species concentrations.
Retention studies of recoiling daughter nuclides of 225Ac in polymer vesicles.
It is demonstrated that polymer vesicles (i.e. polymersomes) can retain recoiling daughter nuclei based on an experimental study examining the retention of (221)Fr and (213)Bi when encapsulating (225)Ac.
Lanthanide concentrations in freshwater plants and molluscs, related to those in surface water, pore water and sediment. A case study in The Netherlands.
The typical 'saw-tooth' lanthanide pattern was observed, which implies that lanthanides are transported as a coherent group through aquatic ecosystems, and it was shown that pore water was the most important lanthaide source, and for snails, food (plants) seems to be the dominant Lanthanide source.
Relationship between epiphytic lichens, trace elements and gaseous atmospheric pollutants.
It is concluded that lichens can safely be used as accumulator organisms in pollution studies, provided that concentration in lichen thalli reflect atmospheric concentrations.
Strategies in sampling and sample handling in the context of large-scale plant biomonitoring surveys of trace element air pollution
Aspects of sampling and sample handling in the context of large-scale plant biomonitoring surveys of trace element air pollution are addressed. Topics such as survey goals and planning, choice of