Detection of Water Quality in the Inshore Fishery Area of Maoming

YANG Jian-she, ZHANG Jia-shou, YANG Xiao-jun, ZHONG Li-xia(Ewironmental Engineering Department of Maoming College, Maoming 525000, China)  

TheinshorefisheryareaofMaomingcityhasbeenencounteredmoreandmoreseriouspollution,whichmakestheenvironmentalqualityoffisheryareadropobviouslyinrecentyears.SomemonitoringhasbeendonefortheseawaterfisheryfunctiondistrictintheShuidonggulfofMaomingcity.Someappraisalsmethodsaboutindividualindexappraisal,whichcomposedofindexappraisalandeutrophicationappraisalofwaterbody,havebeenadoptedheretoappraisetheenvironmentalindexincludingCOD,BOD5,DO,cyanide,inorganicnitrogen,inorganicphosphorus,oil,totalchromiumandsulfideetc..Theresultshowsthat,exceptfortotalchromiumandBOD5indexes,otherindexeshavealreadygonebeyondthefirstkindofnationalseawaterstandard,ofwhichcyanide,inorganicphosphorus(DIP),inorganicnitrogen(DIN),oil,andsulphidehaveoversteppedthesecondkindofnationalseawaterstandard,CODhasoversteppedthirdstandard.Inaddition,thewaterbodyhasalreadybeeneutrophicated;itsenvironmentalqualityreachesmiddledegreepollution;andtheascendanttrendofpollutionindexisveryobvious.SotheprospectofseawaterfisheryfunctiondistrictinShuidongGulfofMaomingisnotoptimistic.

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