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Hispagua Sistema Español de Información sobre el Agua
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27/12/2024
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A study reveals that the common frog is the best indicator of pollution of a wetland
Wed, 15/07/2009
The Environment Protection Section is monitoring the poaching of red frog
Tue, 27/01/2009 (Diario de Noticias de Navarra)
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Urban waste water: improvement in collection and treatment across the EU helps reducing pollution in the environment
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