The conference will allow professionals to examine the importance of pathogens in water and wastewater, sludge and excreta, to determine the formation of disinfection (reaction) byproducts, to review recent advances in legislation issues and inactivation issues for developed and developing countries. Email: acm@pumas.iingen.unam.mx or Visit: http://eventos.iingen.unam.mx/DisinfConfMex2012/