Uruganda rutunganya imyanda ya Qidong rwubatswe mu 2004. Isosiyete ikora cyane cyane mu gutunganya imyanda yo mu mijyi.Mu ruganda rutunganya amazi yo mu mujyi wa Qidong, metero yacu ya pH, metero ya ogisijeni yashonze hamwe nizindi metero zifite amazi meza zashyizwe mubikorwa byo gutunganya imyanda ya okiside, byongera imbaraga mubikorwa byo kurengera ibidukikije mumijyi.
