_____________________________________________________________________________________________________ *Corresponding author: E-mail: renner4nrior@gmail.com, renner.nrior1@ust.edu.ng; Journal of Advances in Microbiology 16(2): 1-12, 2019; Article no.JAMB.48973 ISSN: 2456-7116 Eco-Toxicological Assessment of Local and Industrial Refined Kerosene on Pollution Bio-Monitor Pseudomonas sp. in Tri-Aquatic Ecosystem Renner Renner Nrior 1* , Chidinma Grace Daokoru-Olukole 2 and Godswill Ekine Limejuice 1 1 Department of Microbiology, Faculty of Science, Rivers State University, Port Harcourt, Nigeria. 2 Department of Microbiology, Faculty of Science, Niger Delta University, Bayelsa, Nigeria. Authors’ contributions This work was carried out in collaboration between all authors. Author RRN designed the study, authors GEL and RRN performed the statistical analysis, wrote the protocol and first draft of the manuscript. Authors RRN, CGDO and GEL managed the analyses of the study and managed the literature searches. All authors read and approved the final manuscript. Article Information DOI: 10.9734/JAMB/2019/v16i230120 Editor(s): (1) Dr. Ashabil Aygan, Professor, Department of Biological Science, Kahramanmaras Sutcu Imam University (KSU), Turkey. Reviewers: (1) Anonymous, Nnamdi Azikiwe University, Nigeria. (2) R. Prabha, Karnataka Veterinary, Animal and Fisheries Sciences University, India. Complete Peer review History: http://www.sdiarticle3.com/review-history/48973 Received 27 February 2019 Accepted 08 May 2019 Published 15 May 2019 ABSTRACT Aim: To investigate eco-toxicity of local and industrial refined kerosene on pollution bio-monitor Pseudomonas sp. in tri-aquatic ecosystem (Marine, brackish and freshwater). Study Design: The study employs experimental examination and statistical analysis of the data and interpretation. It was designed to evaluate the different kerosene concentration and the duration of exposure that could cause potential toxicological effect on Pseudomonas sp. in tri-aquatic ecosystem. Place of Study: Fresh water, brackish water, and marine water samples were collected in four litre (4L) sterile containers. Fresh water sample was collected from Asarama Andoni; brackish water from Eagle Island while marine water was collected from Bonny River in Bonny L.G.A., all in Rivers state, Southern, Nigeria. The locally refined kerosene was gotten from Okrika mainland, while the industrially refined kerosene was obtained from Chinda filling station, UST roundabout, Mile 3 Port Harcourt. The study lasted for three months. Original Research Article