Ngila (PhD,1996, University of New South Wales) holds MSc in Chemistry (1992), Bachelor of Education in Science (1986), Kenyatta University (KU). Her research is in water quality monitoring and nanotechnology for water treatment. She taught at KU (1989-1997); University of Botswana (1998-2006); University of KwaZulu Natal (2006-2011); and University of Johannesburg (2011-2017) as a Full Professor of Analytical/Environmental Chemistry. She was Head of Applied Chemistry Department (2013- 2016) and Ag. Director of the Water Node of the Nanotechnology Innovation Centre (2015) at the University of Johannesburg; Deputy Director at Morendat Institute of Oil and Gas, (April 2017- Feb 2020) and Deputy Vice Chancellor for Academic Affairs, Riara University, Kenya (Feb 2020-current). She has over 200 journal articles. She trained over 30 Doctoral Students, 33 Masters and 22 Honours Students and 18 Postdoctoral Research Fellows. Awards include 2017 African Union Kwame Nkrumah and 2016 South Africa Distinguished Women in Science. Member of Academy of Science of South Africa; African Academy of Science. Currently Co-Chair of the 2021 Commonwealth Science Conference hosted by Royal Soc. and AAS.