AQUATIC MACROPHYTES AND MACROALGAE: ECOLOGICAL CHARACTERISTICS AND APPLICATIONS
Diana Syulekchieva, Georgi Gyuzelev, Blagovesta Midyurova
University “Prof. D-r Asen Zlatarov”, Burgas, Bulgaria

APPLICATION OF THE SONOCHEMISTRY IN THE SYNTHESIS OF HETEROCYCLIC COMPOUNDS – A BRIEF REVIEW
Dragomir Vassilev
Technical University of Gabrovo, Gabrovo, Bulgaria

WATER CONSUMPTION WITHIN THE REGION OF BLACK SEA BASIN DIRECTORATE- BULGARIA (2010-2022)
Daniela Toneva, Desislava Dimitrova
Technical University of Varna, Varna, Bulgaria

 MEASUREMENTS OF BACKGROUND RADIATION IN THE AREA OF PROGLED VILLAGE, WESTERN RHODOPES MOUNTAIN
Nina Arhangelova¹, Seniha Salim¹, Georgi Todorov², Lyubomira Veleva^1
1Konstantin Preslavsky University of Shumen, Shumen, Bulgaria
²Vocational School of Economics – Shumen, Shumen, Bulgaria

EVALUATION OF NATURAL RADIOACTIVITY IN THE LEAVES OF THE MEDICINAL PLANT HEDERA HELIX (L.)
N. Arhangelova¹, S. Salim¹, D. Nedeva², R. Velizarova¹, L. Veleva^1
1Konstantin Preslavsky University of Shumen, Shumen, Bulgaria
²Technical University of Gabrovo, Gabrovo, Bulgaria

ENVIRONMENTAL GOALS AND PLANNING THE ACTIVITIES FOR THEIR ACHIEVEMENT IN "ZAGORKA" BREWERY
Dobromira Yaneva, Sonya Velkova-Racheva, Dragomir Vassilev
Technical University of Gabrovo, Gabrovo, Bulgaria

NITROGEN AND PHOSPHORUS LOADING CHARACTERISTICS OF SURFACE WATERS
Diana Syulekchieva, Blagovesta Midyurova
University Prof. D-r Asen Zlatarov, Burgas, Bulgaria

LIMITING THE DISTRIBUTION OF MARINE AND RIVERINE LITTER - CHALLENGES AND OPPORTUNITIES
Danielа Toneva, Miroslava Robinson
Technical University of Varna, Varna, Bulgaria

ANALYSIS OF THE DATA FROM THE RADIATION MONITORING OF THE ENVIRONMENT OF THE "KOZLODUY" NPP IN NATURAL AND DRINKING WATERS
Dragomir Vassilev
Technical University of Gabrovo, Gabrovo, Bulgaria