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2015 | 20 | 1 |
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Do water filters improve the quality of potable water?

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
It is common knowledge that household water filtration systems cause water demineralisation. However, the available literature lacks data concerning to what extent filters decrease concentrations of chosen mineral components in water. The aim of the study was to estimate the effect of filters mounted on domestic water intakes on the changes in selected water properties. Water samples filtered in a reverse osmosis system and not enriched by further mineralization were taken for the study. Total hardness, concentrations of magnesium, calcium, chloride and nitrate ions and water pH and conductivity were determined after filtration and compared with the same parameters in water from the waterworks. Randomly chosen water samples used for the study were taken from sites in north-eastern Poland. The analyses were carried out according to current standards. All the studied samples of unfiltered water met the drinking-water quality standards laid down by the Regulation of the Minister of Health. In the study, it was demonstrated that water filters significantly decreased electrolytic conductivity as well as the concentrations of magnesium and calcium ions (decisive for water hardness) and chlorides. The analysed filters also increased water acidity. Drinking filtered water decreases the share of water in the recommended dietary allowance (RDA) for calcium and magnesium and may result in many diseases, which is discussed in the paper. No positive effect of water filters on nitrate concentrations was found. The authors proved that installing household water treatment devices seems unnecessary, especially when water is purchased from municipal waterworks and tested as safe for human consumption.
Słowa kluczowe
Wydawca
-
Rocznik
Tom
20
Numer
1
Opis fizyczny
p.149-159,fig.,ref.
Twórcy
autor
  • Institute of Biology, Prusa 12, 08-110 Siedlce, Poland
autor
  • Department of Ecology and Environment Protection, Siedlce University of Natural Sciences and Humanities, Siedlce, Poland
autor
  • Department of Ecology and Environment Protection, Siedlce University of Natural Sciences and Humanities, Siedlce, Poland
Bibliografia
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  • Commission Regulation (EU) No. 1258/2011 of 2 December 2011 amending Regulation (EC) No. 1881/2006 as regards maximum levels for nitrates in foodstuffs. Off. J. Eur. Union L 320/15, 3.12.2011. http://www.fsai.ie/uploadedFiles/Reg1258_2011.pdf
  • Council Directive 98/83/EC of 3 November 1998 on the quality of water intended for human consumption. Off. J. Eur. Union L 330/32, 5.12.98.
  • Czekała J., Jeziersk a A., Krzywosądzki A.2011. Calcium and magnesium content in treated waters and their total hardness. J. Elem., 16(2): 169-176. DOI: 10.5601/jelem.2011.16.2.01
  • Derkowsk a-Sitarz M., Adamczyk-LorencA. 2008. Influence of mineral components dissolved in drinking waters on human organism. Pr. Nauk. Inst. Górn. Politech. Wrocł., 123(34): 39-48. (in Polish)
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  • Drobnik M., Latour K. 2005. The estimation of the influence of deionized water on the basic electrolytes in blood and urine of tested animals. Rocz. Państw. Zakl. Hig., 56(3): 283-289. (in Polish)
  • Fewtrell L. 2004. Drinking-water nitrate, methemoglobinemia, and global burden of disease: a discussion. Environ. Health Perspect., 112(14): 1371-1374.
  • Food and Agriculture Organization of the United Nations (FAO)/ Word Health Organization (WHO). 2003. Nitrate (and potential endogenous formation of N-nitroso compounds). In: Safety evaluation of certain food additives and contaminants. Joint FAO/WHO Expert Committee on Food Additives (JECFA) WHO Food Additives Ser. 50.Geneva. http://www. inchem.org/documents/jecefa/jecmono/v50je06.htm
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  • Jorde R., Bonaa K.H. 2000. Calcium dairy products, vitamin D intake and blood pressure: the Tromso study. Am. J. Clin. Nutr., 6: 1530-1535.
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  • Kołłątaj W., Szewczyk L. 2006. Calcium balance – the physiological role of calcium in the human body. Endokrynol. Pediatryczna, 1(14): 57-61. (in Polish)
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  • Morr S., Cuartas E., Alwattar B., Lane J.M. 2006. How much calcium is in your drinking water? A survey of calcium concentrations in bottled and tap water and their significance for medical treatment and drug administration. HSSJ., 2: 130-135. DOI: 10.1007/s11420-006- -9000-9 2006
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  • Raczuk J., Dziuban E., Biardzka E. 2013. Nitrates in drinking water as a factor of health risk to the Platerow commune inhabitants (Mazowieckie Voivodeship). Ochr. Środ. Zasob. Natur. 24(1): 5-9.
  • Regulation of the Minister of Health of 29 March 2007 on the requirements pertaining to the quality of notable water. Dz.U.2007 no. 61 poz. 417. (in Polish)
  • Regulation of the Minister of Environment of 23 July 2008 on thecriteria and methods ofevaluationof groundwater. Dz.U. 2008 no. 143 poz. 896. (in Polish)
  • Regulation of the Minister of Health of 20 April 2010 changing the regulation on the quality of water intended for human consumption. Dz.U. 2010 no. 72 poz. 466. (in Polish)
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  • Salomon A., Regulsk a-Ilow B. 2013. Polish bottled mineral and medicinal water – characterization and application. Bromat. Chem. Toksykol., 46(1): 53-65. (in Polish)
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Typ dokumentu
Bibliografia
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