Ms. Vaileth Kalangali is an Assistant Lecturer at the Nelson Mandela African Institute of Science and Technology (NM-AIST) in Tanzania, specializing in environmental science and chemistry. She holds a Bachelor’s degree in Chemistry from the University of Dar es Salaam and a Master’s degree in Environmental Science from NM-AIST. Her research interests include environmental chemistry, sustainable materials, and water and waste management. Ms. Kalangali has been recognized for her excellence in teaching, receiving awards such as Best Secondary Chemistry Teacher and a Young Scientist Tanzania Special Award. She is also active in community outreach to promote environmental awareness.