Assessment of Chemical and Microbial Contaminations of Water in Mangrove Region of East Godavari District of India

B. Vijaya Kumari1,*, M. Subbarao1 and P.V.S. Machi Raju2

1Department of Chemistry, Acharya Nagarjuna University, Nagarjuna Nagar-522510, India

2Department of Chemistry, Pragati Engineering College, Surampalem-533 437, India

*Corresponding author: E-mail: vijaya.aknu@rediffmail.com

Abstract

The mangroves region in East Godavari region of India has its significance and existing as an ecosystem. Anthropogenic activities in the surrounding areas influence the quality of surface as well as ground waters in this region as such there will be a threat to the environment. The present study is focused in characterizing the surface and ground waters to assess the influence of surface waters on ground water quality. Surface and ground water samples were collected from Chollangi mangrove region and characterized for physico-chemical parameters viz., pH, electrical conductivity (EC), total dissolved solids (TDS), total alkalinity (TA), total hardness (TH), calcium and magnesium, sodium, potassium, chloride, sulphate, nitrate and phosphate. The metal ion concentrations were also analyzed by ICP-MS technique. The irrigation parameters like percent sodium (% Na), sodium adsorption ratio (SAR), Kelly's ratio (KR) and magnesium hazard (MH) were determined. The results revealed that the higher value of all the parameters are due to the hectic interactions of surface waters with ground waters, which are a significant cause for contamination of ground waters in the study area. Lower concentrations of metal ions indicate the absence of metal toxicity in waters. However, higher level of magnesium hazard can deplete the soil quality. The presence of bacteria like Pseudomonas spp, E. coli and Bacillus spps can also cause severe health hazards.

Keywords

Water quality, Ground Water, Surface Water, Mangrove, East Godavari region

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