Arsenic. Arsenic-contaminated water is consumed by app. 100 million people worldwide, including Bihar (India) where this project takes place. Arsenic has severe health consequences: it is an invisible and taste- & odorless poison in water and food, that not only affects health in the long-term (e.g. cancer), but as well in the short term: e.g. skin-related diseases. It affects health severely and people suffering from Arsenicosis are often psycho-socially marginalized (e.g. stigmatization; Sen & Biswas, 2012), due to their visible symptoms. But nevertheless, arsenic is not necessarily well known in the population of areas with affected groundwater.
For more information on arsenic, please refer to the WHO fact-sheet.