<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0188-4999</journal-id>
<journal-title><![CDATA[Revista internacional de contaminación ambiental]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Int. Contam. Ambient]]></abbrev-journal-title>
<issn>0188-4999</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Ciencias de la Atmósfera y Cambio Climático]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-49992019000400797</article-id>
<article-id pub-id-type="doi">10.20937/rica.2019.35.04.02</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[HAZARDOUS POLLUTANTS IN POTABLE GROUNDWATER SOURCES OF PUBLIC SCHOOLS, SOUTHERN PUNJAB (PAKISTAN)]]></article-title>
<article-title xml:lang="es"><![CDATA[CONTAMINANTES PELIGROSOS EN FUENTES SUBTARRÁNEAS DE AGUA DE ESCUELAS PÚBLICAS, PUNJAB DEL SUR (PAKISTÁN)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sarfraz]]></surname>
<given-names><![CDATA[Muhammad]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sultana]]></surname>
<given-names><![CDATA[Nargis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tariq]]></surname>
<given-names><![CDATA[Muhammad Ilyas]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Pakistan Council of Research in Water Resources (PCRWR) Ministry of Science and Technology ]]></institution>
<addr-line><![CDATA[Sargodha ]]></addr-line>
<country>Pakistan</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,University of Sargodha Department of Chemistry ]]></institution>
<addr-line><![CDATA[Sargodha ]]></addr-line>
<country>Pakistan</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<volume>35</volume>
<numero>4</numero>
<fpage>797</fpage>
<lpage>805</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-49992019000400797&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-49992019000400797&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-49992019000400797&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Drinking water quality is considered to be of vital importance for all human beings and animals but its significance is much more heightened when consumer is a teenager. In view of foregone, groundwater quality assessment of 150 public schools situated in flooded areas of Southern Punjab, Pakistan, was carried out. Analysis results revealed that 49 and 37 % water samples are contaminated with coliform and faecal coliforms, respectively. On the other hand chemicals constituents in samples, including calcium (43 %), magnesium (11 %), potassium (37 %), sodium (31 %), sulphate (39 %), hardness (31 %), total dissolved solids (TDS) (35 %) and chloride (15 %) were higher than World Health Organization (WHO) limits. The situation is more serious as fluoride, iron and arsenic were also found in high concentration in 15, 60 and 58 % samples, respectively. Health risk assessment data indicated that mean chronic daily intake (CDI) values for children and adults were 0.592 and 0.537 &#956;g/kg/day for arsenic and 0.012 and 0.011 &#956;g/kg/day for iron, respectively. Calculated arsenic health risk index (HRI) &gt; 1 for 88 and 58 % water samples for children and adults respectively, which highlights possible health risks associated with intake of contaminated water.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La calidad del agua potable se considera de vital importancia para todos los seres humanos y animales, pero su importancia aumenta mucho más cuando el consumidor es un adolescente. En vista de lo anterior, se llevó a cabo una evaluación de la calidad de las aguas subterráneas de 150 escuelas públicas ubicadas en áreas inundadas del sur de Punjab, Pakistán. Los resultados del análisis revelaron que 49 y 37% de las muestras de agua están contaminadas con coliformes y coliformes fecales, respectivamente. Por otro lado, los componentes químicos en las muestras que incluyen calcio (43 %), magnesio (11 %), potasio (37 %), sodio (31 %), sulfato (39 %), dureza (31 %), sólidos disueltos totales (TDS) (35 %) y cloruro (15 %)en 43, 11, 37, 31, 39, 31, 35 y 15% de las muestras fueron mayores que los límites de la Organización Mundial de la Salud (OMS). La situación es más ya que el fluoruro, el hierro y el arsénico también se encontraron en altas concentraciones en 15, 60 y 58% de las muestras, respectivamente. Los datos de evaluación de riesgo para la salud indicaron que los valores medios de ingesta crónica diaria (CDI, por sus siglas en inglés) para niños y adultos fueron de 0.592 y 0.537 &#956;g/kg/día para arsénico y 0.012 y 0.011 &#956;g/kg/día para el hierro, respectivamente. El índice de rieso, calculado para el arsénico, (HRI, por sus siglas en inglés) fue &gt; 1 para 88 y 58% de muestras de agua para niños y adultos, respectivamente, lo que destaca los posibles riesgos para la salud asociados con la ingesta de agua contaminada.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[contamination]]></kwd>
<kwd lng="en"><![CDATA[water quality]]></kwd>
<kwd lng="en"><![CDATA[health risk assessment]]></kwd>
<kwd lng="en"><![CDATA[trace metals]]></kwd>
<kwd lng="en"><![CDATA[chronic daily intake]]></kwd>
<kwd lng="es"><![CDATA[contaminación]]></kwd>
<kwd lng="es"><![CDATA[calidad del agua]]></kwd>
<kwd lng="es"><![CDATA[evaluación de riesgo a la salud]]></kwd>
<kwd lng="es"><![CDATA[metales traza]]></kwd>
<kwd lng="es"><![CDATA[ingesta diaria crónica]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Achary]]></surname>
<given-names><![CDATA[G.S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Studies on ground water pollution due to iron content in Cuttack city, Odisha, India]]></article-title>
<source><![CDATA[Int. J. Multidiscip. Curr. Res.]]></source>
<year>2014</year>
<volume>2</volume>
<page-range>86-9</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Adepoju-Bello]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Alabi]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Heavy metals: A review]]></article-title>
<source><![CDATA[The Niger. J. Pharm.]]></source>
<year>2005</year>
<volume>37</volume>
<page-range>41-5</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Akhter]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Ahmad]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Iqbal]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Shaheen]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Shah]]></surname>
<given-names><![CDATA[M.H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Physicochemical characterization of groundwater in urban areas of Lahore, Pakistan, with special reference to arsenic]]></article-title>
<source><![CDATA[J. Chem. Soc. Pak.]]></source>
<year>2010</year>
<volume>32</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>306-12</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alamgir]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[M.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Schilling]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Shaukat]]></surname>
<given-names><![CDATA[S.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Shahab]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Assessment of groundwater quality in the coastal area of Sindh province, Pakistan]]></article-title>
<source><![CDATA[Environ. Monit. Assess.]]></source>
<year>2016</year>
<volume>188</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>1-13</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ashbolt]]></surname>
<given-names><![CDATA[N.J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Microbial contamination of drinking water and disease outcomes in developing regions]]></article-title>
<source><![CDATA[Toxicology]]></source>
<year>2004</year>
<volume>198</volume>
<numero>1-3</numero>
<issue>1-3</issue>
<page-range>229-38</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ayotte]]></surname>
<given-names><![CDATA[J.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Montgomery]]></surname>
<given-names><![CDATA[D.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Flanagan]]></surname>
<given-names><![CDATA[S.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Robinson]]></surname>
<given-names><![CDATA[K.W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Arsenic in groundwater in eastern New England: occurrence, controls, and human health implications]]></article-title>
<source><![CDATA[Environ. Sci. Technol.]]></source>
<year>2003</year>
<volume>37</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>2075-83</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Baig]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Xu]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Microbial water quality risks to public health: potable water assessment for a flood-affected town in northern Pakistan]]></article-title>
<source><![CDATA[Rural Remote Health]]></source>
<year>2012</year>
<volume>12</volume>
<numero>3</numero>
<issue>3</issue>
</nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Camacho]]></surname>
<given-names><![CDATA[L.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Gutiérrez]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Alarcón-Herrera]]></surname>
<given-names><![CDATA[M.T.]]></given-names>
</name>
<name>
<surname><![CDATA[de Lourdes Villalba]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Deng]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Occurrence and treatment of arsenic in groundwater and soil in northern Mexico and Southwestern USA]]></article-title>
<source><![CDATA[Chemosphere]]></source>
<year>2011</year>
<volume>83</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>211-25</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Clesceri]]></surname>
<given-names><![CDATA[L.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Greenberg]]></surname>
<given-names><![CDATA[A.E]]></given-names>
</name>
<name>
<surname><![CDATA[Eaton]]></surname>
<given-names><![CDATA[A.D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Standard methods for the examination of water and wastewater]]></article-title>
<source><![CDATA[Americam Public Health Association (APHA) and Water Environment Federation]]></source>
<year>2005</year>
<volume>21</volume>
<page-range>258-9</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Grazuleviciene]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Nadisauskiene]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Buinauskiene]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Grazulevicius]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of elevated levels of manganese and iron in drinking water on birth outcomes]]></article-title>
<source><![CDATA[Stress]]></source>
<year>2009</year>
<volume>18</volume>
<numero>5</numero>
<issue>5</issue>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Imitiaz]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Aftab]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Iqbal]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Asi]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Hussain]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nitrate burden in drinking water in Northern Punjab, Pakistan: A challenge for public health]]></article-title>
<source><![CDATA[J. Chem. Soc. Pak.]]></source>
<year>2004</year>
<volume>26</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>450-2</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Iqbal]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Alam]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Sabir]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Ishaq]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ahmad]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Investigation of pollutants in the industrial effluents]]></article-title>
<source><![CDATA[J. Chem. Soc. Pak.]]></source>
<year>2000</year>
<volume>22</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>239-44</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Haq]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Akif]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Riaz]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Quality characteristics of Potable water of Mardan city (Pakistan) and surrounding areas]]></article-title>
<source><![CDATA[J. Chem. Soc. Pak.]]></source>
<year>2000</year>
<volume>22</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>87-93</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Hussain]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Riaz]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Quality characteristics of potable water from different sources of district Bannu (Pakistan) and their possible health impacts]]></article-title>
<source><![CDATA[J. Chem. Soc. Pak.]]></source>
<year>1999</year>
<volume>21</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>106-14</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Rehman]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[A.Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[M.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Shah]]></surname>
<given-names><![CDATA[M.T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Soil and vegetables enrichment with heavy metals from geological sources in Gilgit, northern Pakistan]]></article-title>
<source><![CDATA[Ecotoxicol. Environ. Saf.]]></source>
<year>2010</year>
<volume>73</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>1820-7</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[S.U.]]></given-names>
</name>
<name>
<surname><![CDATA[Bangash]]></surname>
<given-names><![CDATA[F.K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Drinking water quality forecast of Peshawar valley on the basis of sample data]]></article-title>
<source><![CDATA[J. Chem. Soc. Pak.]]></source>
<year>2001</year>
<volume>23</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>243-51</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kudryavtseva]]></surname>
<given-names><![CDATA[L.P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Assessment of drinking water quality in the city of Apatit]]></article-title>
<source><![CDATA[Water Res.]]></source>
<year>1999</year>
<volume>26</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>659-65</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Laluraj]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Gopinath]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Assessment on seasonal variation of groundwater quality of phreatic aquifers-a river basin system]]></article-title>
<source><![CDATA[Environ. Monit. Assess.]]></source>
<year>2006</year>
<volume>117</volume>
<numero>1-3</numero>
<issue>1-3</issue>
<page-range>45-57</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Liang]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Slemenda]]></surname>
<given-names><![CDATA[C.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Ji]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Sun]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Cao]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Emsley]]></surname>
<given-names><![CDATA[C.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Ma]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Wu]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Ying]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of long-term exposure to fluoride in drinking water on risks of bone fractures]]></article-title>
<source><![CDATA[J. Bone Miner. Res.]]></source>
<year>2001</year>
<volume>16</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>932-9</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Malik]]></surname>
<given-names><![CDATA[M.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Azam]]></surname>
<given-names><![CDATA[E.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Saboor]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Water quality status of upper KPK and northern areas of Pakistan]]></source>
<year>2010</year>
<publisher-loc><![CDATA[Peshawar ]]></publisher-loc>
<publisher-name><![CDATA[Water Resources Research Center, Peshawar, Ministry of Science and Technology]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mazloomi]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Dehghani]]></surname>
<given-names><![CDATA[M.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Norouzi]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Fazlzadeh Davil]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Amarluie]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Tardast]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Physical and chemical water quality of ilam water treatment plant]]></article-title>
<source><![CDATA[World Appl. Sci. J.]]></source>
<year>2009</year>
<volume>6</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>1660-4</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[McArthur]]></surname>
<given-names><![CDATA[J.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ravenscroft]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Safiulla]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Thirlwall]]></surname>
<given-names><![CDATA[M.F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Arsenic in groundwater: testing pollution mechanisms for sedimentary aquifers in Bangladesh]]></article-title>
<source><![CDATA[Water Resour. Res.]]></source>
<year>2001</year>
<volume>37</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>109-17</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Memon]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Soomro]]></surname>
<given-names><![CDATA[M.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Akhtar]]></surname>
<given-names><![CDATA[M.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Memon]]></surname>
<given-names><![CDATA[K.S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Drinking water quality assessment in Southern Sindh (Pakistan)]]></article-title>
<source><![CDATA[Environ. Monit. Assess.]]></source>
<year>2011</year>
<volume>177</volume>
<numero>1-4</numero>
<issue>1-4</issue>
<page-range>39-50</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mohamed]]></surname>
<given-names><![CDATA[W.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Alsulaimani]]></surname>
<given-names><![CDATA[A.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Serwah]]></surname>
<given-names><![CDATA[A.H.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ginawi]]></surname>
<given-names><![CDATA[I.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Kosba]]></surname>
<given-names><![CDATA[A.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The relationship between different kinds of drinking water in Saudi Arabia with the incidence of renal diseases]]></article-title>
<source><![CDATA[Int. Res. J. Med. Med. Sci.]]></source>
<year>2015</year>
<volume>3</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>94-102</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mohsin]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Safdar]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Asghar]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Jamal]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Assessment of drinking water quality and its impact on residents health in Bahawalpur city]]></article-title>
<source><![CDATA[Intl. J. Human. Soc.Sci.]]></source>
<year>2013</year>
<volume>3</volume>
<numero>15</numero>
<issue>15</issue>
<page-range>114-28</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Muhammad]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Ikram]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Shah]]></surname>
<given-names><![CDATA[S.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Badshah]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Ahmad]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Shah]]></surname>
<given-names><![CDATA[S.N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Flood disaster in Charasadda, Pakistan: bacteriological examination of drinking water]]></article-title>
<source><![CDATA[Intl. J. Biosci.]]></source>
<year>2013</year>
<volume>3</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>51-9</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Muhammad]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Shah]]></surname>
<given-names><![CDATA[M.T.]]></given-names>
</name>
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Arsenic health risk assessment in drinking water and source apportionment using multivariate statistical techniques in Kohistan region, Northern Pakistan]]></article-title>
<source><![CDATA[Food Chem. Toxicol.]]></source>
<year>2010</year>
<volume>48</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>2855-64</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nabeela]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Azizullah]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Bibi]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Uzma]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Murad]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Shakir]]></surname>
<given-names><![CDATA[S.K.]]></given-names>
</name>
<name>
<surname><![CDATA[Ullah]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Qasim]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Häder]]></surname>
<given-names><![CDATA[D.P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Microbial contamination of drinking water in Pakistan-a review]]></article-title>
<source><![CDATA[Environ. Sci. Pollut. Res.]]></source>
<year>2014</year>
<volume>21</volume>
<numero>24</numero>
<issue>24</issue>
<page-range>13929-42</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nickson]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[McArthur]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Shrestha]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Kyaw-Myint]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Lowry]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Arsenic and other drinking water quality issues, Muzaffargarh District, Pakistan]]></article-title>
<source><![CDATA[Appl. Geochem.]]></source>
<year>2005</year>
<volume>20</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>55-68</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ötle&#351;]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Ça&#287;&#305;nd&#305;]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Health importance of arsenic in drinking water and food]]></article-title>
<source><![CDATA[Environ. Geochem. Health]]></source>
<year>2010</year>
<volume>32</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>367-71</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Phiri]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Mumba]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Moyo]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Kadewa]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Assessment of the impact of industrial effluents on water quality of receiving rivers in urban areas of Malawi]]></article-title>
<source><![CDATA[Int. J. Environ. Sci. Technol.]]></source>
<year>2005</year>
<volume>2</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>237-44</page-range></nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pomeranz]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Dolfin]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Korzets]]></surname>
<given-names><![CDATA[Z. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Eliakim]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Wolach]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Increased sodium concentrations in drinking water increase blood pressure in neonates]]></article-title>
<source><![CDATA[J. Hypertens.]]></source>
<year>2002</year>
<volume>20</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>203-7</page-range></nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Qadeer]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Pollutants in drinking water: Their sources, harmful effects and removal procedures]]></article-title>
<source><![CDATA[J. Chem. Soc. Pak.]]></source>
<year>2004</year>
<volume>26</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>293-327</page-range></nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rasool]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Farooqi]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Masood]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Hussain]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Arsenic in groundwater and its health risk assessment in drinking water of Mailsi, Punjab, Pakistan]]></article-title>
<source><![CDATA[Human and Ecological Risk Assess. Intl. J.]]></source>
<year>2016</year>
<volume>22</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>187-202</page-range></nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rice]]></surname>
<given-names><![CDATA[E.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Baird]]></surname>
<given-names><![CDATA[R.B.]]></given-names>
</name>
<name>
<surname><![CDATA[Eaton]]></surname>
<given-names><![CDATA[A.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Clesceri]]></surname>
<given-names><![CDATA[L.S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Standard methods for the examination of water and wastewater]]></source>
<year>2012</year>
<edition>22nd Edition</edition>
<page-range>1496</page-range><publisher-loc><![CDATA[Washington, D. C., USA ]]></publisher-loc>
<publisher-name><![CDATA[American Public Health Association, American Water Works Association and Water Environment Federation]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ritter]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Solomon]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Sibley]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Hall]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Keen]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Mattu]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Linton]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sources, pathways, and relative risks of contaminants in surface water and groundwater: a perspective prepared for the Walkerton inquiry]]></article-title>
<source><![CDATA[J. Toxicol. Environ. Health Part A]]></source>
<year>2002</year>
<volume>65</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-142</page-range></nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sarfraz]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Sultana]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Jamil]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Groundwater quality and health risk assessment in rural areas of district Jaffarabad, Baluchistan (Pakistan)]]></article-title>
<source><![CDATA[Pak. J. Anal. Environ. Chem.]]></source>
<year>2018</year>
<volume>19</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>129-35</page-range></nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sarfraz]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Sultana]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Tariq]]></surname>
<given-names><![CDATA[M.I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Assessment of groundwater quality and associated health risks in rural areas of Sindh (Pakistan)]]></article-title>
<source><![CDATA[Studia Chemia]]></source>
<year>2018</year>
<volume>63</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>125-36</page-range></nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sarfraz]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Sultana]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Jamil]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ashraf]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Investigation of portable groundwater quality and health risk assessment of selected trace metals in flood affected areas of district Rajanpur, Pakistan]]></article-title>
<source><![CDATA[J. Environ. Anal. Chem.]]></source>
<year>2016</year>
<volume>3</volume>
<numero>183</numero>
<issue>183</issue>
</nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sengupta]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Potential health impacts of hard water]]></article-title>
<source><![CDATA[Intl. J. Preven. Med.]]></source>
<year>2013</year>
<volume>4</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>866</page-range></nlm-citation>
</ref>
<ref id="B41">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shah]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ara]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Muhammad]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Tariq]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Health risk assessment via surface water and sub-surface water consumption in the mafic and ultramafic terrain, Mohmand agency, Northern Pakistan]]></article-title>
<source><![CDATA[J. Geochem. Explor.]]></source>
<year>2012</year>
<volume>118</volume>
<page-range>60-7</page-range></nlm-citation>
</ref>
<ref id="B42">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shakoor]]></surname>
<given-names><![CDATA[M.B.]]></given-names>
</name>
<name>
<surname><![CDATA[Niazi]]></surname>
<given-names><![CDATA[N.K.]]></given-names>
</name>
<name>
<surname><![CDATA[Bibi]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Rahman]]></surname>
<given-names><![CDATA[M.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Naidu]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Dong]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Shahid]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Arshad]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Unraveling health risk and speciation of arsenic from groundwater in rural areas of Punjab, Pakistan]]></article-title>
<source><![CDATA[Int. J. Environ. Res. Public Health]]></source>
<year>2015</year>
<volume>12</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>12371-90</page-range></nlm-citation>
</ref>
<ref id="B43">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Smedley]]></surname>
<given-names><![CDATA[P.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Kinniburgh]]></surname>
<given-names><![CDATA[D.G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A review of the source, behaviour and distribution of arsenic in natural waters]]></article-title>
<source><![CDATA[Appl. Geochem.]]></source>
<year>2002</year>
<volume>17</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>517-68</page-range></nlm-citation>
</ref>
<ref id="B44">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Spencer]]></surname>
<given-names><![CDATA[J.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Arsenic in ground water]]></article-title>
<source><![CDATA[Arizona geology: Arizona Geological Survey]]></source>
<year>2000</year>
<volume>30</volume>
<page-range>1-4</page-range></nlm-citation>
</ref>
<ref id="B45">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sultana]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Farooqi]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ali]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Arsenic concentration variability, health risk assessment, and source identification using multivariate analysis in selected villages of public water system, Lahore, Pakistan]]></article-title>
<source><![CDATA[Environ. Monit.Assess.]]></source>
<year>2014</year>
<volume>186</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>1241-51</page-range></nlm-citation>
</ref>
<ref id="B46">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[VanHalem]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Olivero]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[de Vet]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Verberk]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Amy]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[van Dijk]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Subsurface iron and arsenic removal for shallow tube well drinking water supply in rural Bangladesh]]></article-title>
<source><![CDATA[Water Res.]]></source>
<year>2010</year>
<volume>44</volume>
<numero>19</numero>
<issue>19</issue>
<page-range>5761-9</page-range></nlm-citation>
</ref>
<ref id="B47">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Venkatramanan]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Chung]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Kim]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Prasanna]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Hamm]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Assessment and distribution of metals contamination in groundwater: a case study of Busan City, Korea]]></article-title>
<source><![CDATA[Water Qual., Exposure Health]]></source>
<year>2015</year>
<volume>7</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>219-25</page-range></nlm-citation>
</ref>
<ref id="B48">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wakida]]></surname>
<given-names><![CDATA[F.T.]]></given-names>
</name>
<name>
<surname><![CDATA[Lerner]]></surname>
<given-names><![CDATA[D.N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Non-agricultural sources of groundwater nitrate: a review and case study]]></article-title>
<source><![CDATA[Water Res.]]></source>
<year>2005</year>
<volume>39</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>3-16</page-range></nlm-citation>
</ref>
<ref id="B49">
<nlm-citation citation-type="book">
<collab>WHO</collab>
<source><![CDATA[International standards for drinking-water]]></source>
<year>1963</year>
<edition>2nd Edition</edition>
<page-range>204</page-range><publisher-loc><![CDATA[Geneva. Switzerland ]]></publisher-loc>
<publisher-name><![CDATA[World Health Organization]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B50">
<nlm-citation citation-type="book">
<collab>WHO</collab>
<source><![CDATA[Global water supply and sanitation assessment 2000 report]]></source>
<year>2000</year>
<publisher-loc><![CDATA[Geneva, Switzerland ]]></publisher-loc>
<publisher-name><![CDATA[World Health Organization / United Nations International Children&#8217;s Emergency Fund joint monitoring programme for water supply and sanitation]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B51">
<nlm-citation citation-type="book">
<collab>WHO</collab>
<source><![CDATA[Guidelines for drinking-water quality: recommendations]]></source>
<year>2004</year>
<volume>Vol. 1</volume>
<edition>3rd Edition</edition>
<page-range>494</page-range><publisher-loc><![CDATA[Geneva, Switzerland ]]></publisher-loc>
<publisher-name><![CDATA[World Health Organization]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B52">
<nlm-citation citation-type="book">
<collab>WHO</collab>
<source><![CDATA[World health statistics 2010]]></source>
<year>2010</year>
<page-range>168</page-range><publisher-loc><![CDATA[Geneva, Switzerland ]]></publisher-loc>
<publisher-name><![CDATA[World Health Organization]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
