Drinking water quality: health risk factors and efficiency of control and surveillance activities by Rospotrebnadzor

The paper dwells on issues related to quality of drinking water from centralized water supply systems; spotting out priority health risk factors; and assessing efficiency of control and surveillance activities performed by Rospotrebnadzor in the sphere of drinking water supply to the RF population. It was detected that in most RF regions control activities performed within social-hygienic monitoring mainly covered contents of substances belonging to the 3rd and 4th hazard categories in drinking water while contents of the 1st hazard category substances were controlled only in several RF regions. The highest shares of samples exceeding hygienic standards as per contents of the 1st hazard category substances were detected for such dangerous chemicals as chloroform, bromodichloromethane, trichloroethylene, 1,2-dichloroethane, tetrachloromethane, tetrachloroethylene, and arsenic. Chlorine and chlorinated organic compounds, ammonium and chemicals that contain ammonium ion, iron, manganese, arsenic, nickel, and copper compounds, as well as microbiological contamination of water remain priority risk factors with the greatest contribution made into additional incidence associated with poor quality of drinking water taken from communal water supply systems...