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In qualche topic ed anche su internet ho però letto che recentemente invece del cloro puro si usa la clorammina che è meno volatile. Ho letto questo su Wikipedia:
NH2Cl is commonly used in low concentrations as a disinfectant in municipal water systems as an alternative to chlorination. This application is increasing. Chlorine (sometimes referred to as Free Chlorine) is being displaced by chloramine, which is much more stable and does not dissipate from the water before it reaches consumers. NH2Cl also exhibits less tendency to convert organic materials into chlorocarbons such as chloroform and carbon tetrachloride. Such compounds have been identified as carcinogens and in 1979 the U.S. EPA began regulating their levels in U.S. drinking water. Furthermore, water treated with chloramine lacks the distinct chlorine odour of the gaseous treatment and so has improved taste.
E questo:
Aquarium owners must remove the chloramine from their tap water because it is toxic to fish. Aging the water for a few days removes chlorine but not the more stable chloramine, which can be neutralised using products available at pet stores.
Quindi ritengo che i biocondizionatori siano indispensabili per rendere l'acqua adatta all'acquario (almeno nelle grandi città), sperando che siano previsti per eliminare la clorammina.
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Ciao, Fede
Non dobbiamo credere che siano intelligenti solo le persone che la pensano come noi.
Dare una mano agli altri è il modo migliore per tenersi in piedi. (Indro Montanelli)
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