Presented at EnviroInfo 2011, Ispra, Italy. Full article reference: Foerster, T., Diaz, L., & Bröring, A. (2011). Integrating Volunteered Human Sensor Data into Crowd-sourced Platforms- A Use case on Noise Pollution Monitoring and OpenStreetMap. In W. Pillmann, S. Schade, & P. Smits (Eds.), Innovations in Sharing Environmental Observation and Information (pp. 505-510). Presented at the 25th EnvironInfo Conference 2011, Ispra, Italy: Shaker Verlag.