%0 Journal Article %T Monitoring of Water Quality’s Ecological Status in Tolich River in Hanoi, Vietnam %A Nguen, D.. %A Volshanik, V.V. %A Dzhumagulova, N.T. %K surface waters, ecological status, water pollution, ecological monitoring, aeration, water quality control. %J Safety in Technosphere %D 2017 %N 6 %P 6 %I INFRA-M Academic Publishing LLC.