Integrated assessment of the spring waters of the Bryansk region in the system of state monitoring

The results of ecological-chemical and toxicological analysis 20 model springs on the territory urban rural settlements Bryansk region within framework water monitoring are presented. Indicators hydrochemistry phytotoxicity by biotesting method classified according to temperature, flow rate, pH value, salinity total hardness. Correlation relationships between obtained hydrochemical indicators spring waters shown. additions base for state in summer low-water period 2020 showed that dominant pollutant tracts areas is nitrate ions; iron content exceeds permissible norms. Among springs, 25 % have an excess ions relative norms maximum concentrations (45 mg / L), - a significant normalized indicator «total iron» (0,3 L). Calculation index samples from two toxic (coefficient J 20). Ecological chemical determination degree hemerobity tract chloride anthropogenic impact natural waters. Conjugate revealed strong correlations parameters “total mineralization hardness”, ions”, “electrical conductivity mineralization”. ranked transformation landscape. On scale hemerobicity, were seven degrees: metagemerobic (one spring), polyhemerobic (two springs), α-euhemerobic β-euhemerobic mesohemerobic (six oligohemerobic (eight springs).