Yakaka Kachalla AJIMI is with the environment and safety department of the Engineering Division of Nigerian National Petroleum Corp, Lagos. She is responsible for providing cost-effective, qualitative and timely environmental monitoring and auditing of strategic business units. She also ensures compliance with statutory requirements. She has also held the position of assistant lecturer in the chemistry department of the University of Maiduguru. Her service in the National Youth Service Corp was with Kubear Alkyl Benzen (1989). Y.K. Ajimi has a bachelor's and a master's degree in chemistry from the University of Maiduguru.