_____________________________________________________________________________________________________ *Corresponding author: E-mail: ubabright4real@yahoo.com; Asian Journal of Biochemistry, Genetics and Molecular Biology 5(1): 17-27, 2020; Article no.AJBGMB.57693 ISSN: 2582-3698 Experimental Assessment of the Toxicity Effects of Phone Battery Wastes on Aquatic and Terrestrial Bioindicators Bright Obidinma Uba 1* , Chisom Judith Okonkwo 1 and Odera Richard Umeh 2 1 Department of Microbiology, Chukwuemeka Odumegwu Ojukwu University, P.M.B. 02, Uli, Anambra State, Nigeria. 2 Department of Applied Microbiology and Brewing, Nnamdi Azikiwe University, P.M.B. 5025 Awka, Anambra State, Nigeria. Authors’ contributions This work was carried out in collaboration among all authors. Author BOU designed the study, performed the statistical analysis, wrote the protocol and wrote the first draft of the manuscript. Author CJO managed the analyses of the study. Authors BOU, CJO and ORU managed the literature searches. All authors read and approved the final manuscript. Article Information DOI: 10.9734/AJBGMB/2020/v5i130117 Editor(s): (1) Dr. Ahmed Medhat Mohamed Al-Naggar, Cairo University, Egypt. Reviewers: (1) Swarnali Nath Choudhury, The ICFAI University Tripura, India. (2) Endah Rita Sulistya Dewi, Universitas PGRI Semarang, Indonesia. Complete Peer review History: http://www.sdiarticle4.com/review-history/57693 Received 02 April 2020 Accepted 08 June 2020 Published 22 August 2020 ABSTRACT Aims: The present study aimed at assessing the toxicity effects of phone battery wastes on aquatic and terrestrial bioindicators. Study Design: Five treatments and the controls designs designated as 6.25%, 12.5%, 25%, 50%, 100%, CTRL and 1 mg/kg, 2 mg/kg, 3 mg/kg, 4 mg/kg, 5 mg/kg, 6 mg/kg, CTRL were set up in triplicates and incubated for 24 h, 72 h and 20 days at 25 ± 2°C. Place and Duration of Study: Department of Microbiology, Chukwuemeka Odumegwu Ojukwu University, Nigeria during May, 2019 - August, 2019. Methodology: The growth inhibition and mortality were analyzed using Aspergillus terreus toxicity test, Allium cepa toxicity test and Limicolaria flammea toxicity test. Results: The results revealed that marine water (7.12 logCFU/mL) was shown to had more fungal Original Research Article