s:1015:"%T Citizen scientists monitor water quantity and quality in Kenya %A Rufino, M.C. %A Weeser, B. %A Stenfert Kroese, J. %A Njue, N. %A Gräf, J. %A Jacobs, S. %A Kemboi, Z. %A Ran, A.M. %A Cerutti, P.O. %A Martius, C. %A Breuer, L. %X Key messagesLow-cost, reliable methods for monitoring water levels and water quality are needed to assist water-resource managers in their decision-making.'Citizen scientists' willing to take part in simple monitoring activities can expand the data sets in understudied regions.We worked with citizens in a remote Kenyan catchment who contributed valuable water level and water-quality data. Long-term motivation of participants, active recruiting of new volunteers, and an effective reward system will be key to sustainable citizen-resourced water-monitoring programmes.Data provided by ‘citizen scientists’ can be scientifically robust and cost-effective in supporting the monitoring needed to inform the development of water management strategies. ";