Departamentul de ecotoxicologie acvatică a Universităţii Goethe din Frankfurt a făcut mai multe experienţe pentru a compara comportamentul recipientelor de apă minerală de sticlă şi de plastic.
Cercetătorii germani Martin Wagner şi Jorg Oehlmann afirmă că sticlele din plastic eliberează elemente perturbatoare endocrine care alterează capacitatea de reproducere la bărbaţi. În acest sens, sticlele de plastic sunt mai nocive decât recipientele din sticlă. În 60% din cazuri s-a înregistrat o creştere „mult mai mare” a nivelului de estrogen, hormonul sexual feminin, în ambalajele de plastic. Conform experienţelor efectuate de ei, oamenii de ştiinţă germani explică creşterea hormonilor prin utilizarea PET la fabricarea sticlelor.
De cealaltă parte, producătorii nu au deloc încredere în rezultateale studiulu.
„Testele nu sunt pertinente şi noi asigurăm toate condiţiile de calitate în fiecare etapă de producţie’, a declarat pentru Le Point Herve Plessix, director de Cercetare şi Dezvoltare la Danone, pentru revista săptămânală franceză Le Point.
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