Lifestyle
Chistoacele de tigari si-au gasit rostul: Pot impiedica ruginirea tevilor de otel
Substantele chimice din chistoace de tigara, atat de toxice incat pot ucide pestii, pot fi folosite in schimb pentru a proteja de rugina tevile de otel, reiese dintr-un studiu publicat in China, conform Reuters.
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Oamenii de stiinta chinezi au publicat un studiu in revista de specialitate a American Chemical Society in care se arata ca, in urma scufundarii resturilor de tigara in apa, au fost identificate un numar de 9 compusi chimici. In combinatie cu N80, un tip de otel folosite la construirea tevilor, aceste substante, printre care si nicotina, actioneaza ca factori de protectie impotriva ruginii.
Corodarea tevilor de otel folosite in industria petrolului necesita investitii de milioane de dolari anual pentru reparatii.
Conform studiului citat, 4,5 trilioane de chistoace de tigari sunt aruncate in mediul inconjurator in fiecare an. In afara de efectul inestetic, ele contin substante daunatoare cu efect poluant.
60% dintre barbatii chinezi sunt fumatori, mai scrie Reuters.
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