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Plastične boce za vodu za višekratnu upotrebu popularne su, posebno tijekom sportskih aktivnosti, zbog svoje male težine i otpornosti na udarce. Međutim, određeni kemijski spojevi mogu migrirati iz plastike u vodu za piće, pokazale su nove analize istraživača sa Sveučilišta u Kopenhagenu. U vodi iz plastičnih boca pronašli su oko 400 različitih kemikalija, a neke od tih tvari potencijalno su štetne za ljudsko zdravlje, piše National Geographic. 

Čudan okus vode nakon što je neko vrijeme bila u plastičnoj boci za višekratnu upotrebu ima svoje razloge, ističu danski znanstvenici. U vodi koja je stajala u plastičnoj boci, nakon samo 24 sata pronašli su veliku količinu kemikalija.

Istraživanje je osmišljeno tako da bude što bliže tipičnoj upotrebi boca. Ljudi obično piju vodu koja je bila u bocama nekoliko sati. Testirane su nove boce, kao i boce koje su se redovito koristile za vodu oko godinu dana.

Profesor Jan H. Kristensen i istraživačica Selina Tisler otkrili su više od 400 spojeva povezanih s plastikom u bocama, kao i preko 3500 njih povezanih s deterdžentom za pranje posuđa u stroju. Veći dio su nepoznate tvari koje istraživači tek trebaju identificirati. Studija je objavljena u časopisu Journal of Hazardous Materials.

Istraživanjem je utvrđena prisutnost tvari štetnih za ljudsko zdravlje, poput endokrinih disruptora i kancerogenih tvari. Znanstvenici su pronašli razne omekšivače plastike, antioksidanse i sredstva za oslobađanje koji se koriste u proizvodnji plastike, kao i dietiltoluamid (DEET), poznat kao aktivna tvar u spreju protiv komaraca.

Analizirali su i plastične boce prije i nakon pranja u perilici posuđa, kao i nakon dodatnog ručnog ispiranja poslije strojnog pranja.

- Najotrovnije tvari koje smo identificirali zapravo su se pojavile nakon što je boca bila u perilici posuđa, vjerojatno zato što pranje izjeda plastiku i tako povećava oslobađanje tvari, objasnila je Tisler.

Rezultati istraživanja odražavaju nedostatak znanja o ovoj problematici kao i slabu regulativu. Potrebni su bolji standardi u proizvodnji plastičnih boca, smatraju kemičari koji su radili analize.

 

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Plastične boce za vodu za višekratnu upotrebu popularne su, posebno tijekom sportskih aktivnosti, zbog svoje male težine i otpornosti na udarce. Međutim, određeni kemijski spojevi mogu migrirati iz plastike u vodu za piće, pokazale su nove analize istraživača sa Sveučilišta u Kopenhagenu. U vodi iz plastičnih boca pronašli su oko 400 različitih kemikalija, a neke od tih tvari potencijalno su štetne za ljudsko zdravlje, piše National Geographic. 

Čudan okus vode nakon što je neko vrijeme bila u plastičnoj boci za višekratnu upotrebu ima svoje razloge, ističu danski znanstvenici. U vodi koja je stajala u plastičnoj boci, nakon samo 24 sata pronašli su veliku količinu kemikalija.

Istraživanje je osmišljeno tako da bude što bliže tipičnoj upotrebi boca. Ljudi obično piju vodu koja je bila u bocama nekoliko sati. Testirane su nove boce, kao i boce koje su se redovito koristile za vodu oko godinu dana.

Profesor Jan H. Kristensen i istraživačica Selina Tisler otkrili su više od 400 spojeva povezanih s plastikom u bocama, kao i preko 3500 njih povezanih s deterdžentom za pranje posuđa u stroju. Veći dio su nepoznate tvari koje istraživači tek trebaju identificirati. Studija je objavljena u časopisu Journal of Hazardous Materials.

Istraživanjem je utvrđena prisutnost tvari štetnih za ljudsko zdravlje, poput endokrinih disruptora i kancerogenih tvari. Znanstvenici su pronašli razne omekšivače plastike, antioksidanse i sredstva za oslobađanje koji se koriste u proizvodnji plastike, kao i dietiltoluamid (DEET), poznat kao aktivna tvar u spreju protiv komaraca.

Analizirali su i plastične boce prije i nakon pranja u perilici posuđa, kao i nakon dodatnog ručnog ispiranja poslije strojnog pranja.

- Najotrovnije tvari koje smo identificirali zapravo su se pojavile nakon što je boca bila u perilici posuđa, vjerojatno zato što pranje izjeda plastiku i tako povećava oslobađanje tvari, objasnila je Tisler.

Rezultati istraživanja odražavaju nedostatak znanja o ovoj problematici kao i slabu regulativu. Potrebni su bolji standardi u proizvodnji plastičnih boca, smatraju kemičari koji su radili analize.

 

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Životveliko istraživanje

Pijete vodu iz plastičnih boca i koristite ih više puta? Evo zašto to baš i nije dobra ideja

Piše Mozaik SD
17. ožujka 2022. - 13:29
21301820
PREMIUM
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Plastične boce za vodu za višekratnu upotrebu popularne su, posebno tijekom sportskih aktivnosti, zbog svoje male težine i otpornosti na udarce. Međutim, određeni kemijski spojevi mogu migrirati iz plastike u vodu za piće, pokazale su nove analize istraživača sa Sveučilišta u Kopenhagenu. U vodi iz plastičnih boca pronašli su oko 400 različitih kemikalija, a neke od tih tvari potencijalno su štetne za ljudsko zdravlje, piše National Geographic. 

Čudan okus vode nakon što je neko vrijeme bila u plastičnoj boci za višekratnu upotrebu ima svoje razloge, ističu danski znanstvenici. U vodi koja je stajala u plastičnoj boci, nakon samo 24 sata pronašli su veliku količinu kemikalija.

Istraživanje je osmišljeno tako da bude što bliže tipičnoj upotrebi boca. Ljudi obično pi...

#BOCE #PLASTIČNE BOCE
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11. svibanj 2024 23:05