Meuse River

The Dommel is a small tributary (1,350 km2) of the Meuse River. It originates in Belgium, crosses the border in the south of the Netherlands (Kempen region) and... 

Hendriks, A.J., H. Pieters, and J. de Boer. 1998. Accumulation of metals, polycyclic (halogenated) aromatic hydrocarbons, and biocides in zebra mussel and eel from the Rhine and Meuse Rivers. Environ. Toxicol. Chem. 17 1885-1898. 

Zebra mussel, Dreissena polymorpha Netherlands 1994 soft parts Meuse River vs. reference site ... 

Sediments were mainly sampled in autumn. Two samples taken in spring showed concentrations comparable with those found for the same locations in autumn. Significant levels of 0.3—2.8 p-g g-1 dry weight (d.w.) of NPEO were found in the Dommel, a small tributary of the river Meuse, in samples taken downstream from the effluent discharge of a municipal WWTP, and in samples from the Rhine, Scheldt and Meuse rivers. Elevated levels of NP (0.5—3.8 p,g g-1) were... 

Comparison of Tables 6.2.4 and 6.2.6 shows that dissolved concentrations of NP and NPEO are higher in the Rhine and Meuse rivers than in the Hessian river, which is probably caused by accumulation from diffuse and point sources along the rivers. On the contrary, levels of NPEC in Hessian streams are similar to those observed in the rivers Rhine and Meuse in The Netherlands. An explanation for this could be that degradation occurs relatively more readily in the smaller streams due to slower water velocities and a lower particle density in these waters. 

Mouvet, Ch., and A. C. M. Bourg (1983), "Speciation (Including Adsorbed Species) of Copper, Lead, Nickel and Zinc in the Meuse River", Water Res. 17/6, 641 -49. 

Mouvet C, Bourg ACM. 1983. Speciation (including adsorbed species) of copper, lead, nickel, and zinc in the Meuse River. Water Research 17 641-649. 

Organic concentrates of water samples from the Rhine River and Meuse River were tested for toxicity by using a 48-h mortality test on fish (Poecilla reticulata) at 3-month intervals for 1 year (11). The river samples were concentrated by adsorption on XAD followed by elution with acetone. Rhine water samples were more toxic than Meuse water samples in most cases (7,12, 13) (see Figure 6). 

Figure 6. Toxicity and mutagenicity of the Rhine River and Meuse River in The Netherlands 1-3, the Rhine River at different locations 4-5, the Meuse River at different locations.

No mutagenic activity could be detected in the bile of bream from the Meuse River, which contains little activity in the water itself. Seasonal changes in the level of Rhine water mutagenicity roughly coincide with similar changes in the activity of bile from Rhine fish (see Figure 8). 

River and branches > Lake IJssel > Meuse River > North Sea > Lake Braassem (16) (see Figure 9). 

Because mutagenic activity in the Rhine River and the Meuse River usually does not change substantially after the rivers enter The Netherlands, most mutagenic pollution is of foreign origin. 

Figure 4. Molecular weight determination of a drinking water concentrate with Sephadex LH20. Sampling, 10 -fold concentration of drinking water before and after chlorination (L5 mg/L of CI2, Meuse River source) on XAD-4/8, elution with DMSO (neutral fraction), and subsequent gel filtration were as described in Materials and Methods. After measuring the absorbance at 263 mm, the fractions were pooled as indicated. After dilution in water, the fractions were reconcentrated on XAD-4/8, eluted with DMSO, and assayed in the Salmonella mutagenicity test (strain TA98 S9).

Figure 10 shows that stored Meuse River water also contains nitroreductase-dependent mutagens (see TA98). This finding indicates... 

Van der Wielen, C. and Halleux, I. (2000) Toxicity monitoring of the Scheldt and Meuse rivers in Wallonia (Belgium) by conventional tests and microbiotests, in G. Persoone, C. Janssen and W.M. De Coen (eds.), New Microbiotests for Routine Toxicity Screening and Biomonitoring, Kluwer Academic/Plenum Publishers, New York, pp. 295-303. 

Common tern (Sterna hirundo) breeding in the sedimentation area of Rhine and Meuse rivers, were affected by non- and mono-ortho CB contamination, compared to the clean inland colony near Zeawolde [71]. Studies on double crested cormorants (Phalacrocorax auritus) using CB-126, 2,3,7,8-TCDD, and extract derived from field collected eggs revealed that chicken (Gallus domesti-cus) is at least 70 times more sensitive to developmental abnormalities such as pronounced edema [72],... 

Figure 22 Adsorption of trace metals by the Meuse River bottom sediments measured data in NaN03 0.01 M and interpretation (curves) in terms of adsorption.

Kralingen, Netherlands [83] Surface water Meuse River Coagulation Sedimentation Ozonation Dual layer filtration Carbon filtration Safety chlorination Protection against periodic taste/odor and toxic substances Removal of THM s produced by chlorination Removal of matter produced by or unsuccessfully removed by ozonation Particle size 0.8 mm Bed deptli 4 m Bed diameter 6 m Volume per filter 116 m" Contact time 12 min. 

Plate 5 Variations in concentrations (pg L of trace elements along the 4 transects in the Meuse River... 

The tank trial described above was followed by a field trial in the Meuse River (Allan et al., 2008) at the same location, and this was undertaken in order to determine whether... 

AVonk flow rate of the Meuse river water through the tank = 167 mL min-1,... 

Figure 4.3.2 Experimental configuration for tank experiment with Meuse river water fortified with PAH spiking solutions...

Figure 4.3.6 Examples of front face synchronous fluorescence spectra obtained from tab-shaped (. s sorbent elements after immersion in Meuse River water spiked with a mixture of PAHs. The marked fluorescence bands are those that were used for measuring the concentrations of the individual PAHs...

Table 4.3.1 PAH concentrations in periodically collected water samples determined by front face synchronous fluorimetry on tab shaped Cis sorbing elements after immersion in contaminated Meuse River water...

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