Water Quality Parameters: Statistical Point of View

摘要

Water iis a fundamental ibasic ineed ifor isustaining ihuman iand ieconomic iactivities. Availability iof iwater iinithe idesired iquantity iand iquality, iat ithe iright itime iand iplace ihas ibeen ithe ikey ito ithe isurvival iof iallicivilizations. This paper iassesses ithe iwater iquality iof ithe iEleyele idam iin iOyo iState, iNigeria iusingistatistical itechniques iso as ito iensure iproper imonitoring iand icontrolling iof idischarged iwater ito itheicommunity. Water isamples iwere icollected idaily ifrom ithe iEleyele idam iusing istratified isamplingitechniques ifrom ifour idifferent isampling ipoints ion ithe idam ifor a period iof ithree imonths ifor iphysicochemical ianalysis. The itime iseries iplot ishows iirregular ivariation iin ithe ibehaviour iof ithe iwater iqualityiparameters as ithere iis ipresence iof iextreme ivalues iin ithe iparameters. i iColour, iturbidity, ipH, idissolveioxygen, ialkalinity, itotal ihardness, ichloride, isilica, ichlorine iranged between i25.969±36.034TCU,i6.032±7.355NTU, i6.774±0.363, i5.913±2.397mg/l, i83.380±35.794mg/l, i93.016±15.197mg/l,i32.944±8.796mg/l, i5.759±2.205mg/l iand i3.786±1.822mg/l irespectively. iTotal ihardness isignificantlyicorrelated iwith ialkalinity i(r i= i0.429, iP i i0.05), ipH i(r i= i0.404, iP i i0.05) iand isilica i(r i= i0.324, iP ii0.05). iTurbidity isignificantly icorrelated iwith ialkalinity i(r i= i0.332, iP i i0.05) iand ipH i(r i= i0.370, iP ii0.05) iwhile ichlorine isignificantly icorrelated iwith ialkalinity i(r i= i0.335, iP i i0.05). Alkalinity isignificantlyicorrelated iwith ipH i(r i= i0.548, iP i i0.05) iand icolour i(r i= i0.515, iP i i0.05). iDissolved ioxygen iobtainedimay inot ibe ifavorable ifor ithe isnail ihost. The ialkalinity, iturbidity, icolour iand isilica iare iabove iWHOiguidelines ifor idrinking iwater iquality. The iattention iof igovernments iand istake-holders imust ibe idrawn itoithe iwater iquality iof ithe idam ias iit imay ihave ieffect ion ithe ipublic ihealth iand iincreases imortality irateidue ito iwater iborne iand iassociated idiseases .