lectura
de 1 minut
Intr-un articol trecut am vorbit despre cat de importanta
este calitatea apei pentru a avea cel mai bun ceai. Mai multe despre asta
puteti citi aici
Insa acum ne propunem sa facem o scurta analiza intre apa
de la robinet, apa plata si apa filtrata. Asadar, sa trecem in revista o
lectura de un minut.
Desi persista o neincredere in siguranta apei de la robinet, un studiu realizat pe 35 de marci de apa imbuteliata nu le-a gasit neaparat mai sigure, mai curate sau de o calitate mai buna.
Insa, doua studii
publicate inca din anii ’70 au rezolvat misterul. De fapt, problema suntem noi,
pentru ca, cloruram apa potabila.
Dupa zeci de ani de cercetari, se pare ca ingestia pe tot
parcursul vietii de apa potabila clorurata are drept rezultat „un risc clar”
pentru cancerul vezicii urinare, mai exact 40 de ani de expunere la clorul din
apa iti cresc riscul de cancer la vezica cu aproximativ 27%.
Cea mai buna modalitate de a reduce riscul este folosirea
filtrelor direct in retea (filtre cu osmoza inversa) sau canile filtrante, insa atentie, filtrele trebuie schimbate exact asa cum recomanda producatorul,
altfel creste riscul de acumulare a bacteriilor si ajungi sa ingerezi mai multe
bacterii decat cele din apa de la robinet.
Imagine preluata de pe foodsalive.com
Referinte
- Onufrak SJ, Park S, Sharkey JR, Sherry B. The relationship of perceptions of tap water safety with intake of sugar-sweetened beverages and plain water among US adults. Public Health Nutr. 2014;17(1):179-85.
- Saleh MA, Abdel-Rahman FH, Woodard BB, et al. Chemical, microbial and physical evaluation of commercial bottled waters in greater Houston area of Texas. J Environ Sci Health A Tox Hazard Subst Environ Eng. 2008;43(4):335-47.
- Hrudey SE. Chlorination disinfection by-products, public health risk tradeoffs and me. Water Res. 2009;43(8):2057-92.
- Bellar TA, Lichtenberg JJ, Kroner RC. The Occurrence of Organohalides in Chlorinated Drinking Waters. J Amer Water Works Assoc. 1974;66(12)703-706.
- Tak S, Vellanki BP. Natural organic matter as precursor to disinfection byproducts and its removal using conventional and advanced processes: state of the art review. J Water Health. 2018;16(5):681-703.
- Villanueva CM, Fernández F, Malats N, Grimalt JO, Kogevinas M. Meta-analysis of studies on individual consumption of chlorinated drinking water and bladder cancer. J Epidemiol Community Health. 2003;57(3):166-73.
- Hwang BF, Jaakkola JJ. Water chlorination and birth defects: a systematic review and meta-analysis. Arch Environ Health. 2003;58(2):83-91.
- Odom R, Regli S, Messner M, Cromwell J, Javdan M. Benefit–cost analysis of the Stage 1 D/DBP Rule. J Amer Water Works Assoc. 1999;91(4):137-147.
- Grellier J, Rushton L, Briggs DJ, Nieuwenhuijsen MJ. Assessing the human health impacts of exposure to disinfection by-products–a critical review of concepts and methods. Environ Int. 2015;78:61-81.
- Stalter D, O’Malley E, von Guntenbc U, Escher BI. Point-of-use water filters can effectively remove disinfection by-products and toxicity from chlorinated and chloraminated tap water. Environ. Sci.: Water Res. Technol. 2016;2:875-883 .
- Bellinger DC. Lead Contamination in Flint–An Abject Failure to Protect Public Health. N Engl J Med. 2016;374(12):1101-3.
- Anumol T, Clarke BO, Merel S, Snyder SA. Point?of?Use Devices for Attenuation of Trace Organic Compounds in Water. J Amer Water Works Assoc. 2015;107(9):E474-E485.
- Weinberg HS, Pereira VR, Singer PC, Savitz DA. Considerations for improving the accuracy of exposure to disinfection by-products by ingestion in epidemiologic studies. Sci Total Environ. 2006;354(1):35-42.
- Peker I, Akca G, Sarikir C, Alkurt MT, Celik I. Effectiveness of alternative methods for toothbrush disinfection: an in vitro study. ScientificWorldJournal. 2014;2014:726190.
- Basman A, Peker I, Akca G, Alkurt MT, Sarikir C, Celik I. Evaluation of toothbrush disinfection via different methods. Braz Oral Res. 2016;30.
Sursa: Nutritionfacts.org – Michael Greger M.D. FACLM, Founder
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