« Previous Abstract"Draft genome of a biparental beetle species, Lethrus apterus"    Next Abstract"Conventional water bath heating on undried brewer's spent grain: Functionality, fatty acids, volatiles, polyphenolic and antioxidant properties" »

Environ Geochem Health

Title:		"Assessment of potable water quality including organic, inorganic, and trace metal concentrations"
Author(s):		Nahar MS; Zhang J;
Address:		"Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan. msnahar@sci.u-toyama.ac.jp"
Journal Title:		Environ Geochem Health
Year:		2012
Volume:		20110614
Issue:		1
Page Number:		141 - 150
DOI:		10.1007/s10653-011-9397-z
ISSN/ISBN:		1573-2983 (Electronic) 0269-4042 (Linking)
Abstract:		"The quality of drinking water (tap, ground, and spring) in Toyama Prefecture, Japan was assessed by studying quality indicators including major ions, total carbon, and trace metal levels. The physicochemical properties of the water tested were different depending on the water source. Major ion concentrations (Ca(2+), K(+), Si(4+), Mg(2+), Na(+), SO(4)(2-), HCO(3)(-), NO(3)(-), and Cl(-)) were determined by ion chromatography, and the results were used to generate Stiff diagrams in order to visually identify different water masses. Major ion concentrations were higher in ground water than in spring and tap water. The relationship between alkaline metals (Na(+) and K(+)), alkaline-earth metals (Ca(2+) and Mg(2+)), and HCO(3)(-) showed little difference between deep and shallow ground water. Toyama ground, spring, and tap water were all the same type of water mass, called Ca-HCO(3). The calculated total dissolved solid values were below 300 mg/L for all water sources and met World Health Organization (WHO) water quality guidelines. Trace levels of As, Cd, Cr, Co, Cu, Fe, Pb, Mn, Mo, Ni, V, Zn, Sr, and Hg were detected in ground, spring, and tap water sources using inductively coupled plasma atomic emission spectrometry, and their levels were below WHO and Japanese water quality standard limits. Volatile organic carbon compounds were quantified by headspace gas chromatography-mass spectrometry, and the measured concentrations met WHO and Japanese water quality guidelines. Total trihalomethanes (THMs) were the major contaminant detected in all natural drinking water sources, but the concentration was highest in tap water (37.27 +/- 0.05 mug/L). Notably, THMs concentrations reached up to 1.1 +/- 0.05 mug/L in deep ground water. The proposed model gives an accurate description of the organic, inorganic, and trace heavy metal indicators studied here and may be used in natural clean water quality management"
Keywords:		"Anions/analysis Cations/analysis Chromatography, Ion Exchange Drinking Water/*analysis Japan Metals, Heavy/analysis Natural Springs/*analysis Organic Chemicals/analysis Spectrophotometry, Atomic Water Pollutants, Chemical/*analysis *Water Quality Water We;"
Notes:		"MedlineNahar, Mst Shamsun Zhang, Jing eng Research Support, Non-U.S. Gov't Netherlands 2011/06/15 Environ Geochem Health. 2012 Feb; 34(1):141-50. doi: 10.1007/s10653-011-9397-z. Epub 2011 Jun 14"