Environmental radioactivity measurement in soils of an abandoned potash deposit at Holle, Republic of Congo
نویسندگان
چکیده
The main objective of the present study was to assess natural radioactivity level from soils an abandoned potash mine and its surroundings at Holle locality in Hinda district, Republic Congo. Samples were analyzed using HPGe gamma spectrometer. Activity concentration values obtained varied 21.01 ± 6.47 117.3 2.69 Bq/kg with a mean value 46.15 4.69 40 K; that 238 U 17.36 10.74 40.04 8.58 25.14 10.06 Bq/k, while 232 Th 8.68 3.7 27.33 18.16 2.94 Bq/kg. Mean activity for U, K relatively low compared world average values. Radiological hazard indices associated also calculated found be under recommended limits. Results pointed out region low. Consequently, surrounding can used buildings construction.
منابع مشابه
morphology, geochemistry, mineralogy, and micromorphology of soils of hormozgan province in relation to parent materials
ویژگی های زمین شیمیایی، کانی شناسی، و میکرومورفولوژیکی خاک ها و سنگ مادر مربوطه در منطقه بین بخش های جنوبی زاگرس و خلیج فارس تا دریای عمان(استان هرمزگان، ایران) مورد بررسی قرار گرفت. هدف های این مطالعه شناسایی تغییرات در خصوصیات فیزیکی، شیمیایی، و ترکیب کانی شناسی خاک، مطالعه میکرومورفولوژی و تکامل خاک، و بررسی توزیع عنصر خاک بر اساس هوازدگی، پروسه های خاک و زمین شناسی جهت توصیف اثرات مواد مادر...
15 صفحه اولthe effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
the role of application of dynamic assessment approach in improvement of iranian efl writing performance at different language proficiency levels
the present study sought to investigate the role of dynamic assessment (da) in improvement of iranian efl writing performance at different language proficiency levels. to this end, after conducting the quick placement test, 60 iranian efl learners were assigned to two groups with different language proficiency levels. in both groups each participant wrote two compositions, one before and one af...
development and implementation of an optimized control strategy for induction machine in an electric vehicle
in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...
15 صفحه اولDemocratic Republic of Congo
Programme outcome: The IFRC 2010 support strategy and plan for the Red Cross of the Democratic Republic of Congo (Red Cross of DRC) was based on the National Society’s (NS) 20092013 Strategic Development Plan and was designed to help the NS provide vulnerable communities with life-saving first aid, clean water and sanitation, health and hygiene promotion, HIV/AIDS support, sexual and gender bas...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: E3S web of conferences
سال: 2022
ISSN: ['2555-0403', '2267-1242']
DOI: https://doi.org/10.1051/e3sconf/202233600030