 Urban redevelopment, industrial diseases and memories 
The pollution caused by the Comptoir des minéraux et des matières premières (CMMP), an asbestos plant in Aulnay-sous-Bois (Seine-Saint-Denis, France), exemplifies the socially constructed invisibility that characterizes the health impacts of carcinogenic exposure to asbestos, as well as the circumstances under which they took place. The recent spurt in urban redevelopment reinforces the need to create a collective memory that can keep alive the risk experienced by victims, especially when this risk is no longer visible on the landscape. Testimonies of the ones that were exposed or have gotten sick are fundamental in creating a collective memory of pollution and its consequences. We must collect, organize, and disseminate those testimonies before they are forgotten, which raises questions on how to best preserve memory. By highlighting the negative experiences and memories of individuals, we can also explore the (de)valorization of territory and the use of an unusual kind of heritage.