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"At a time when the Algarve is showing signs of higher levels of occupation, we run the risk of spoiling what we have been doing, to earn one or two euros per tourist," said Raul Ribeiro Ferreira, at the XIV Congress of the ADHP in Albufeira.
Many leading brands of water supplied in plastic bottles are contaminated with tiny particles that are seeping in during bottling, according to a major study involving samples from nine countries.
Researchers tested 250 bottles of water in Brazil, China, India, Indonesia, Kenya, Lebanon, Mexico, Thailand, and the United States.