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mads.xsd"><authority><topic authority="http://bibliotesauro.aecid.es/vocab/">Contaminación ambiental</topic></authority><related type="narrower"><topic>Contaminación ambiental de América</topic></related><related type="narrower"><topic>Contaminación ambiental de Europa</topic></related><related type="narrower"><topic>Contaminacion del agua</topic></related><related type="narrower"><topic>Pesticidas</topic></related><related type="narrower"><topic>Residuos</topic></related><related type="broader"><topic>Medio ambiente</topic></related><variant type="other"><topic>Contaminacion</topic></variant></mads>