Opiyo, Romanus, Philip Osano, Andriannah Mbandi, William Apondo, and Cassilde Muhoza. “Using Citizen Science to Assess Cumulative Risk from Air and Other Pollution Sources in Informal Settlements”. Clean Air Journal 30, no. 1 (June 11, 2020). Accessed April 24, 2024. https://cleanairjournal.org.za/article/view/8374.