Impact of volcanic plume emissions on rain water chemistry during the January 2010 Nyamuragira eruptive event: Implications for essential potable water resources

► The 2010 Nyamuragira volcanic eruption significantly impacts Virunga water quality. ► Balance of volcanic debris and acidic aerosols dictates water pH. ► Water-rock interactions with volcanic debris control drinking water chemistry. ► pH controls which toxic metals are mobile and may be consumed at a given site.