1. Water Recreation and Children Exposure to the Risks of Heavy Metal: In Manyera River, Niger State, Nigeria • Musediq Olufemi Lawal, Osun State University; Timileyin Olajuwon, University of the Western Cape.

2. An Exploration of Perceived Impact of Water, Sanitation and Hygiene (Wash) on Maternal Health and Implications among Women of Reproductive Age in Rural Communities of Akwa Ibom State, Nigeria • Dorothy N. Ononokpono, University of Uyo; Nsidibe Usoro, University of Uyo; Ibukun Odejimi, University of Uyo; Emem-obong Fenson , Cardinal Ekandem Seminary, Uyo, Akwa Ibom State, Nigeria.; Itoro Umoren, University of Uyo.

3. Menstrual Health Hygiene and Management: Knowledge, Stigma, and Lived Experiences among Rural Adolescent Girls in Ibadan, Nigeria. • Ayomikun M Orobiyi, Girl Up Sapphires, United Nations Foundation; Gboluwaga Adeola, The Sapphires Development Initiative.

4. L’accès à l’assainissement amélioré ;cauchemar des milieux insulaires : cas de l’ile de Niodior dans le département de Foundiougne, région de Fatick Sénégal* • Oumou NIANG, Institut des Sciences de l'Environnement/UCAD/SENEGAL.