Hygienic assessment of drinking water from underground water sources taken from centralized water supply systems on island Russkiy

Drinking water is a leading environmental and hygienic factor that influences population health as it tends to contain a lot of chemicals, both natural and anthropogenic in their origin. Our research goal was to hygienically assess drinking water from underground water sources taken from centralized water supply systems on Ostrov Russiky. Research object. We hygienically assessed quality of water supply on Ostrov Russkiy (Primorye) in 2017-2019 as per 33 sanitary-chemical and 3 microbiological parameters at three stages: water from underground sources (120 samples); water at pump stations (138 samples); water taken from distribution network (204 samples). Data and methods. The first stage in hygienic assessment of drinking water was performed as per methodical guidelines provided by F.F. Erisman’s Federal Scientific Center for Hygiene «Assessment of sanitary-epidemiologic reliability of centralized drinking water supply systems» (MG 2.1.4-2370-08). The second stage involved calculating reflex-olfactor, chronic non-carcinogenic and carcinogenic effects and integral assessment of drinking water taken from centralized water supply systems as per chemical safety parameters (MG 2...