（英文文献）1-s2.0-S0269749116304523-main

1-s2.0-S0269749116304523-mainEnvironmentalassessmentofdrainagewaterimpactsonwaterqualityandeutrophicationlevelofLakeIdku,Egypt*ElhamM.Alia,*,HananM.KhairybaDivisionofEnvironmentalSciences,FacultyofScience,UniversityofSuez,Suez,EgyptbNationalInstituteofOceanographyandFisheries,KayetBay,Alexandria,EgyptarticleinfoArticlehistory:Received14March2016Receivedinrevisedform10May2016Accepted24May2016Availableonline17June2016Keywords:DrainagewaterPhytoplanktonPollutionWaterqualityindexDiversityabstractLakeIdku,northernEgypt,receiveslargequantitiesofdrainagewaterfromfourmaindischargingdrains.EcologicalandbiologicalstatusofLakeIdkuhasbeenmonitoredduring(autumn2012tosummer2013)toexaminethelakewaterqualityandeutrophicationlevelinresponsetothequalityaswellasthesourceofthedischargingwater.Discretewatersampleswerecollectedfromthelakebodyandthedrains.Chemicalanalysesrevealedanexcessivenutrientloadgoesintothelake.Arangeof1.4e10.6mgnitrites/Lwasdeterminedfordrainwaters,howeverasuddenincreasewasobservedinl