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Pollution and effects of hydrological patterns on water and sediments quality characteristics from porto-novo lagoon bionetwork

Author Affiliations

  • 1Department of Fisheries Technology, Lagos State Polytechnic, Ikorodu, Lagos State, Nigeria
  • 2Laboratory of Research on Wetlands, Department of Zoology University of Abomey Calavi, Benin Republic

Int. Res. J. Environment Sci., Volume 6, Issue (8), Pages 30-38, August,22 (2017)

Abstract

Impact assessment of hydrological patterns on Porto-Novo lagoon water, sediments quality characteristics, and pollution status were carried out for 12 months. Water quality parameters and metal pollutants were also evaluated.The water body was stratified into 12 strata based on the morphology of the lagoon and various human activities on the lagoon. Data were collected based on season, sampling stations, metal pollutants, and water quality parameters. The results were analyzed in the laboratory and interpreted using exploratory data analysis statistics. There is no significant difference in the means of dissolved oxygen and pH in different months between July and June at 5% level of probability. However, there is a significant difference in the means of temperature, turbidity, electrical conductivity, salinity, total dissolved solids, COD, BOD, total hardness, and depth in different months at 5% level of probability. The order of amount of metallic contaminants in sediments from Porto-Novo Lagoon between July and December (Rainy season) are in these order; Mn&

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