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Influence of the urease inhibitor suspension (Atmowell ® ) on the fluorescent dye pyranine and its spray and drift behavior in wind tunnel measurements.
Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes 2023 Februrary 21
Too many ammonia emissions are released into the environment from cattle farming. These damage the environment and have an impact on animal and human health. Ammonia Emissions could be reduce by urease inhibitors. Before using the urease inhibitor suspension Atmowell® in cattle farming a risk assessment is required. This includes exposure data on the animal and human in the barn. As there is no method for exposure measurements yet the approach of fluorometry was taken. The fluorescent dye pyranine shall replace Atmowell® in later studies as a tracer. Before Atmowell® can be replaced, the interaction between Atmowell® and pyranine-according to the fluorescence and storage stability under the influence of ultraviolet light, has to be observed and excluded. Also, the spray and drift behavior must be examined in the wind tunnel with three different nozzles. The results show that Atmowell® has no effect on neither the fluorescence nor the degradation rate of a pyranine-solution. Furthermore, it is shown that a pyranine + Atmowell® mixture does not differ in drift behavior from a pure pyranine-solution. Because of these findings, an Atmowell® -solution can be substituted by a pyranine-solution without any effects on the results of an exposure measurement being expected.
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