Dynamics of nitrate degradation along an alternative latrine improved by a sawdust permeable reactive barrier (PRB) installed in an irregular settlement in the municipality of São Paulo (Brazil) - Suhogusoff, Alexandra Vieira; Hirata, Ricardo; Aravena, Ramon; Robertson, William D.; Ferrari, Luiz Carlos; Stimson, Jesse; Blowes, David W. (Ecological Engineering, 2019)