This study aimed to estimate arsenic(As)and iron(Fe)content in tubewell water(n=58)in primary educational institutions and subsequently assess the health risks to school-going children.Results described that the As concentration ranged between 0.002 and 0.994 mg L-1 with an average value of 0.044 mg L-1;which exceeded the World Health Organization(WHO)provisional guide-line value of 0.01 mg L-1.Similarly,the Fe content varied from 0.05 to 10 mg L-1 averaging to 2.84 mg L-1.Sam-ples of 55.17％contained a greater As concentration than 0.01 mg L-1 and 18.97％greater than Bangladesh drinking water quality(BDWQ)standard of 0.05 mg L-1,respec-tively.Meanwhile,75.86％of samples contained a higher Fe concentration than the maximum Bangladesh permis-sible limit of 1 mg L-1.Health risk assessment indicated that girls are more vulnerable than boys are.The average hazard quotients(HQs)for As intake through drinking water were 6.01±17.85 and 7.41±22.03 for boys and girls,respectively,implying non-carcinogenic health risks to both genders.The HQs for Fe intake were less than threshold value of 1 indicating no health issues may arise from Fe intake alone.However,consumption of As and Fe may trigger health risks to students as indicated by the hazard index(HI),which was higher than 1.The average cancer risk(CR)values for both boys(0.0027±0.008)and girls(0.0033±0.0099)exceeded the threshold limit of 10-6-10-4,suggesting a possibility of lifetime cancer risks to the school-going children.Consequently,school authorities should find alternative ways to ensure safe drinking water for school-going children to avoid possible cancer and non-cancer health risks through consumption of As-poisoning water.

Sohel Rana;Jahangir Alam;Abu Musa;Sazal Kumar;Aminur Rahman

Zonal Laboratory,Department of Public Health Engineering(DPHE),Rangpur,Bangladesh;Department of Chemistry,Carmichael College,Rangpur,Bangladesh;Department of Applied Chemistry and Chemical Engineering,Islamic University,Kushtia 7003,Bangladesh;School of Environmental and Life Sciences,The University of Newcastle,Callaghan,NSW 2308,Australia;Global Centre for Environmental Remediation(GCER),College of Engineering,Science and Environment,The University of Newcastle,Callaghan,NSW 2308,Australia;Zonal Laboratory,Department of Public Health Engineering(DPHE),Jashore-7400,Bangladesh

地球化学学报（英文版）

[1]Sohel Rana;Jahangir Alam;Abu Musa;Sazal Kumar;Aminur Rahman-.Groundwater arsenic poisoning in a primary educational institution:health risks to school-going children)[J].地球化学学报（英文版）,2022(06):1069-1082

tubewell,BDWQ,permis,HQs

Groundwater,arsenic,poisoning,primary,educational,health,risks,school,going,children,This,study,aimed,estimate,iron,content,institutions,subsequently,Results,described,that,concentration,ranged,between,average,which,exceeded,World,Health,Organization,WHO,provisional,guide,line,Similarly,varied,from,averaging,Sam,contained,greater,than,Bangladesh,drinking,quality,standard,Meanwhile,samples,higher,maximum,limit,assessment,indicated,girls,are,more,vulnerable,boys,hazard,quotients,intake,through,were,respectively,implying,carcinogenic,both,genders,less,threshold,indicating,issues,may,arise,alone,However,consumption,trigger,students,by,HI,was,cancer,CR,values,suggesting,possibility,lifetime,Consequently,authorities,should,find,alternative,ways,ensure,safe,avoid,possible

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