Iryna Volodymyrivna Davydova

Zhytomyr State University · Department of Ecology

In modern conditions of urban areas development, the importance of protection against noise is increasing. Measures to reduce noise levels in the city's districts should be comprehensive and combine both organizational and architectural-construction and engineering-technological measures. To determine the most optimal combination of countermeasures...

The paper analyzes the prospects of using forestry waste as a raw material for the production of fuel resources (pellets). For each type of wood raw material the main quality parameters were measured: humidity, ash content, volatile substances content, The lower calorific value of the studied samples was calculated on the basis to the experimentall...

Radioactive contamination of the above-ground phytomass of marsh Labrador tea (Ledum palustre L.) in different periods after the Chernobyl accident was studied. Marsh Labrador tea is widely used in official and folk medicine. The studied species grows in over-moistened pine (less mixed) forests and open oligotrophic and mesotrophic marshes. It was...

Forest ecosystems are complex areas in terms of rehabilitation of radioactively contaminated areas, so conducting an up-to-date examination of these areas for radioactive contamination is relevant. The paper considers the improvement of methods of soil sampling for obtaining representative materials in the estimation of vertical migration of 137 Cs...

The contamination of 137 Cs in wild-growing medicinal plants was studied with regards to the species, type of forest vegetation conditions and soil specific activity of 137 Cs in Zhytomyr polissya forest phytocenoses (Ukraine). The research was carried out in two plots planted in the most region typical edatopes-fresh and wet subor (Querceto-Pinetu...

This article deals with the research which includes a visual assessment of the ecological state of the riparian area of the Kamyanka River within the limits of the city of Zhytomyr; laboratory studies of water samples on basic hydrochemical parameters; identification of the potential sources of river pollution; the calculation of the pollution inde...

Досліджено зміну вмісту радіонуклідів у фітомасі зелених (брієвих) мохів в умовах свіжого бору Українського Полісся впродовж 2016–2018 рр. Середня щільність радіоактивного забруднення ґрунту на пробній площі становила 199±52 кБк/м2. З'ясовано, що величини питомої активності та інтенсивності надходження радіонуклідів до фітомаси аналізованих видів м...

We studied the influence of forest fires on vertical pattern of 137 Cs specific activity concentration in forest soils. Our experiments were organized in Bazar forestry of State Enterprise (SE) "Narodychi Forestry" (Ukraine). We sampled soil in the study sites where grassfires occurred at different times, and determined the specific activity of 137...

The state of forest fund is studied; the volume of forest use and reforestation in the region was analyzed, resources of Zhytomyr region is investigated in this work; the structure of the forest, the main reasons for unsatisfactory state of forests were revealed. It has been established that the forests of Zhytomyr region as a whole, and especially...

Досліджено динаміку вмісту 137Cs у корі крушини ламкої у лісах Житомирського Полісся з часу аварії на ЧАЕС (1991-2018 рр.). Відзначено істотне зменшення величини питомої активності 137Cs у корі крушини ламкої на постійних пробних площах за період спостережень (27 років) – від 4 до 38 разів, тобто темпи зниження питомої активності 137Cs у корі круши...

It has been established that intensive penetration of 137Cs both into the above-ground part of phytomass and blueberry is continuing at present. The transition coefficients of 137Cs (m2kg-110-3) in the above-ground part of European blueberry (17 - 53) are significantly higher than in berries (4 - 8). The decrease of the levels of 137Cs radioactiv...

Results of long-term studies of 137Cs accumulation in the Frangula alnus Mill. bark in wet subory in forests of Ukrainian Polissia are presented. The reduction of specific activity of the radionuclide in the bark of this plant and the dependence of the indicator on the density of soil radioactive contamination is shown. The redistribution of 137Cs...

The analysis of the production of broken stone materials shows that the processing enterprises of this product have problems with the storage of waste product. The dumps of waste cover huge areas of land suitable for agriculture use. The accumulation of waste also affects the environment. Its accumulation occurs due to the imperfect technology of w...

Проведено узагальнення та аналіз звітних даних лабораторії радіаційного контролю продукції лісового господарства у Житомирській обл. за період з 1998 по 2013 рр. Протягом вказаного періоду встановлено поступове скорочення кількості зразків, які перевіряють з метою встановлення рівнів їх радіоактивного забруднення. Виявлено, що найбільша частка зраз...