Publications by authors named "R Scheidegger"

An inadvertent consequence of pesticide use is aquatic pesticide pollution, which has prompted the implementation of mitigation measures in many countries. Water quality monitoring programs are an important tool to evaluate the efficacy of these mitigation measures. However, large interannual variability of pesticide losses makes it challenging to detect significant improvements in water quality and to attribute these improvements to the application of specific mitigation measures.

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Aquatic pesticide pollution is an important issue worldwide. Countries rely on monitoring programs to observe water bodies quality and on models to evaluate pesticide risks for entire stream networks. Measurements are typically sparse and discontinuous which lead to issues in quantifying pesticide transport at the catchment scale.

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Artisanal and small-scale mining (ASM) is an important livelihood activity in many low- and middle-income countries. It is widely acknowledged that there are a myriad of health risk and opportunities associated with ASM. However, little is known with regard to which aspects of health have been studied in ASM settings.

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Aquatic pesticide pollution from both agricultural and urban pest control is a concern in many parts of the world. Making an accurate assessment of pesticide exposure is the starting point to protecting aquatic ecosystems. This in turn requires the design of an effective monitoring program.

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The increasing professionalization and the cost pressure on farms combined with a decreasing availability of veterinary expertise procures the demand for treatments and interventions performed by non-veterinarians. A current survey resulting in 56 responses of food animal practitioners showed that a majority delivered pour-on anthelmintics, drugs for oral application and ointments after respective instruction to farmers. Udder injectors, antimicrobials and vaccines were handled more restrictively, but even hormones were committed by more than half of the veterinarians to livestock owners.

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