Ohwo Odafivwotu

• Biodiversity Journal, 14 (3): 0405-0413

  Ndakara Ofudjaye Emmanuel & Ohwo Odafivwotu
  Seasonality Assessment of Abattoir Waste Impact on Water Quality of Anwai River in Nigeria
  https://doi.org/10.31396/Biodiv.Jour.2023.14.3.405.413

  ABSTRACT
  Water is a very important environmental resource to all organisms. Therefore, guiding against the influx of pollutants into it is necessary. This study assesses the environmental and seasonality impact of abattoir waste on water quality of Anwai River in Nigeria. Experimental design was adopted, while systematic sampling technique was employed to divide the river into downstream (DS) and upstream (US) for samples collection. 24 samples were collected for 6 different months and analysed for physico-chemical properties (PCP) using standard laboratory procedures. Statistical analyses of data involved graphs, mean (μ), standard deviation (S2), standard error of mean (SEM) and t-test statistics. Findings show that PCP of water varied across months and seasons, as well as between the DS (with μ, S2, SEM =16.21, 26.58, ±6.10; and 18.40, 26.80, ±6.15 for rainy and dry seasons) and US (with μ, S2, SEM =10.69, 13.59, ±3.12; and 13.61, 18.39, ±4.22 for rainy and dry seasons). In both rainy and dry months, DS recorded higher temperature, acidity, electrical conductivity (EC), total dissolve solid (TDS), total suspended solids (TSS), nitrate, phosphate, calcium (Ca), sodium (Na), magnesium (Mg), ammonia (NH3), potassium (K) and total coliform (TC). There is no significant difference in the water quality between the rainy and dry seasons for both DS and US sections at 5% confidence level. Therefore, abattoir waste should be properly treated before disposal into rivers, while river waters should not be consumed directly without treatment.

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