Determination of pollutions in the surface of water samples from Ogbajarajara river, Nigeria by spectrophotometer and atomic absorption spectrometry before evaluation of health risk assessment

Volume 5, Issue 01, Pages 5-21, Mar 2021 *** Field: Analytical Environmental Chemistry

  • Stanley Chukwuemeka Ihenetu, Corresponding Author, Department of Chemistry, Faculty of Physical Sciences, Imo State University, P.M.B 2000 Owerri, Nigeria
  • Victor Obinna Njoku Department of Chemistry, Faculty of Physical Sciences, Imo State University, P.M.B 2000 Owerri, Nigeria
  • Francis Chizoruo Ibe Department of Chemistry, Faculty of Physical Sciences, Imo State University P.M.B 2000 Owerri, Nigeria
  • Gang Li CAS Key Laboratory of Urban Environmental and Health, Institute of Urban Environment, Chinese Academy of Science, 1799 Jimei Road, Xiamen 361021, China
  • Arinze Chinweuba Chemistry Department, Chukwuemeka odimegwu Ojukwu University Uli, Anambra Nigeria
  • Christian Christian Ebere Enyoh Group Research in Analytical Chemistry, Environment and Climate change (GRACE&CC), Department of Chemistry, Faculty of Science, Imo State University, Owerri, Imo State
Keywords: Heavy metal, Environment, Pollution, Surface water, Spectrophotometer, Atomic absorption spectrometry

Abstract

Determination of environmental pollution in the surface water is very important. So, in this study, determination, and health risk assessment were evaluated. The pollutions such as anions, cations, and heavy metals were analyzed in surface water by photometer spectrometry and atomic absorption spectrometry (AAS). TDS for wet and dry seasons go from 122.17±1.74 mg L-1 to 63.80±0.86 mg L-1. The high phosphate levels in both wet and dry seasons are recorded from 60.74±0.61 - 60.27±0.38 mg L-1 in both seasons. Iron values observed range from 8.42±0.06 to 6.28±0.11 mg L-1 in the wet and dry season, Cu was recorded between 0.08±0.01 - 0.07±0.01 mg L-1, Mn recorded from 0.07±0.01 to 0.06±0.01 mg L-1, Zn recorded between 2.29±0.09 - 1.15±0.09 mg L-1, and Pb recorded from 0.69±0.09 to 0.40±0.18 mg L-1 while Cd and Ni were not detected in the study. Water quality index (WQI) values were determined as 549 for wet and 328 for the dry season, the hazard indices for both seasons are below one. The outcomes in this present study showed that the level of Pb in the surface water could present a carcinogenic risk to both adults and children. All heavy metals results were validated by ET-AAS.

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Published
2022-03-30
How to Cite
Chukwuemeka Ihenetu, S., Obinna Njoku, V., Chizoruo Ibe, F., Li, G., Chinweuba, A., & Ebere Enyoh, C. (2022). Determination of pollutions in the surface of water samples from Ogbajarajara river, Nigeria by spectrophotometer and atomic absorption spectrometry before evaluation of health risk assessment. Analytical Methods in Environmental Chemistry Journal, 5(01), 5-21. https://doi.org/10.24200/amecj.v5.i01.162
Section
Original Article