This research was conducted in January 2015 until August 2016 at Batang Kuantan rivers through in Saik Village, Pebaun Hulu Village and Pebaun Hilir Village of Kuantan Mudik subdistrict. The purpose of this study is to analyze the socio-economic circumstances and cultural community as well as the effect of the use of mercury in gold mining without permission (PETI). The study used survey method…