TY - CPAPER AU - Emilia Tcherkezova AU - Marian Varbanov AU - Gergana Metodieva AU - Kristina Gartsiyanova AU - Stefan Genchev TI - TYPES OF ANTHROPOGENIC IMPACT ON WATER QUALITY IN THE CHEPINSKA AND CHEPELARSKA RIVER BASINS USING WATER QUALITY INDICES AND AIRBUS DEFENCE AND SPACE PLEIADES-1A AND SPOT 6 SATELLITE DATA T2 - SWS 2026 Conference Preprints PY - 2026 PB - STEF92 Technology ER -