zones urbanisées – English Translation – Keybot Dictionary

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  Biocides dans les cours...  
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Si les biocides parviennent dans les cours d’eau, ils peuvent avoir un effet écotoxique. Pendant longtemps, l’agriculture a été la principale accusée. Or de nouvelles études montrent qu’une part de ces substances provient des zones urbanisées.
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If biocides find their way into water, they can have an ecotoxic effect. For a long time, agriculture was considered to be the main cause of water pollution. New investigations have revealed, however, that a proportion of organic pollutants originate in residential areas.
  Biocides dans les cours...  
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Or certaines des substances détectées sont interdites dans le domaine agricole, tandis que d’autres ne présentent pas la courbe saisonnière des composés appliqués dans les champs. Des nouveaux résultats montrent que ces substances proviennent des zones urbanisées.
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For a long time, agriculture was regarded as the most important source of biocides in the environment. Meanwhile, however, agents have been discovered in the aquatic environment that are no longer permissible in agriculture or whose seasonal occurrence does not correlate with their utilisation on fields. More recent investigations have revealed that some of these substances also originate in residential areas, where they are used, for example, in anti-algal and anti-fungal paints and plasters for modern façades.