RETURN Seminars Welcome to Day 2 Winterschool 2026 2.1 Mining effluents and microorganisms Resongles, Acha et al 2.2 Human exposure to mining contaminants Gardon y Tirado 2.3 Geogenic contaminants The case of arsenic Ormachea, Tapia y Huallpara 2.4 Human exposure to arsenic N. Tirado You can also visit on other days by clicking on the buttons Go to Day 1 Go to Day 3 Español