Browsing by Author "Erdogan M."

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Health hazards due to the exposure to radon in schools of the cappadocia region
(2017-01-01) Turhan S.; Akyurek S.; Erdogan M.; Kurnaz A.; Altikulac A.
This study presents the results of a survey of radon concentrations in schools (kindergartens, primary schools, secondary schools, high schools, colleges, and one faculty) located in the province of Nevsehir which is the center of the Cappadocia region. Radon measurements covered two consecutive 6-month periods in the ground floor classrooms inside the school buildings and they were performed using a continuous active radon detector (AlphaGUARD PQ2000 PRO). Data distribution is well fitted by a log-normal curve. The arithmetic average value of the radon concentrations measured in summer and winter was found as 75 ×12 Bqm–3 and 67 × 10 Bqm–3, respectively. From the measured results, the effective doses from radon exposures in summer and winter were estimated as 0.27 and 0.40 mSv and 0.24 and 0.36 mSv for students and teachers, respectively. The results showed that radon concentration measured in schools does not pose significant health hazards for students and teachers.
Improving the Detrimental Aspects of Salinity in Salinized Soils of Arid and Semi-arid Areas for Effects of Vermicompost Leachate on Salt Stress in Seedlings
(2022-06-01) Cicek N.; Erdogan M.; Yucedag C.; Cetin M.
The present study was performed to determine the effects of vermicompost leachate on growth, quality, and nutrients of Sedum album seedlings under salt stress. The study was carried out in Research and Practice Greenhouse of Cankırı Karatekin University in Central Anatolia of Turkey. One-month-old seedlings are treated with or without vermicompost leachate at five various NaCl applications (0, 50, 100, 150, and 200 mM). Shoot height, shoot fresh and dry weights, aesthetic appearance score, and crown widths of 10-week-old S. album seedlings and plant nutrients were evaluated. Salt stress x vermicompost leachate interaction had a significant effect on all studied traits (P < 0.05). The study revealed that vermicompost leachate–supplemented salt concentrations improved the harmful effects of salinity stress on growth and quality traits and macro- and micronutrients of S. album. The present study highlights the consideration of the regular application of vermicompost leachate, rich in nutrient content and microbial activity, to improve the detrimental aspects of salinity in salinized soils of arid and semi-arid areas and to improve the quality of soil and plant.