Zobrazeno 1 - 10
of 12
pro vyhledávání: '"M. W. Chege"'
Autor:
C Nyambura, N. O. Hashim, M. W. Chege, Chutima Kranrod, Shinji Tokonami, Willis Otieno Gor Odongo
Publikováno v:
Radiation Protection Dosimetry. 197:12-18
222Rn and 220Rn surface exhalation rates from earthen building materials used in high background radiation areas of Homa and Ruri, Kenya have been measured using an accumulation chamber coupled with RAD7 detector. Activity concentrations of 226Ra and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcca915c4f2110cbd80c7fcae9ce6d6c
https://doi.org/10.1093/rpd/ncab156
https://doi.org/10.1093/rpd/ncab156
Autor:
Atieno Carmen, C Nyambura, N. O. Hashim, D. Otwoma, F. Omonya Wanjala, M. W. Chege, Jeremiah Monari Kebwaro
Publikováno v:
Journal of Environment Pollution and Human Health. 9:64-70
Radon and thoron gases are produced by radioactive decay of soil and rocks containing uranium and thorium. Radon and thoron in dwellings constructed using soil and rocks rich in uranium and thorium are considered as a major causes of lung cancer espe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ece0c47141415ea1786f3330c11923cf
https://doi.org/10.12691/jephh-9-2-5
https://doi.org/10.12691/jephh-9-2-5
Publikováno v:
Radiation Protection Dosimetry. 192:56-60
The activity concentration of radon in underground water of Bureti sub-county was measured using liquid scintillating counter device. The average radon activity concentration in all the water samples was 12.41 Bql−1. The maximum and minimum activit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b66487f11e3a006350dff0ac6e8861b
https://doi.org/10.1093/rpd/ncaa193
https://doi.org/10.1093/rpd/ncaa193
Autor:
Masahiro Hosoda, N. O. Hashim, C Nyambura, Hiromi Kudo, M. W. Chege, Takahito Suzuki, Shinji Tokonami
Publikováno v:
Radiation Protection Dosimetry. 184:430-434
Human beings are continuously exposed to ionising radiation originating from natural or artificial sources. Uranium-238 and Thorium-232 found in building materials are important sources of radon and thoron in the indoor environment. The concentration
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84eab6f2c4eed908e29a7b4760f33c02
https://doi.org/10.1093/rpd/ncz090
https://doi.org/10.1093/rpd/ncz090
Publikováno v:
The Scientific World Journal, Vol 2021 (2021)
The Scientific World Journal
The Scientific World Journal
In this study, the activity concentration levels of 238U, 232Th, and 40K in sand samples collected from Shanzu, Nyali, Kenyatta, Tiwi, Shelly, and Diani beaches selected along the Kenyan coastline were determined using a gamma ray spectrometer with a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3dafb309c941b2570b6ae5d4b3a8cb2c
https://doaj.org/article/db53bd10f9b1408d83c36477deea89a9
https://doaj.org/article/db53bd10f9b1408d83c36477deea89a9
Publikováno v:
Radiation protection dosimetry. 192(4)
The activity concentration of soil samples of Bureti sub-county was measured using thallium-activated sodium iodide detector. To ascertain the level of radiation hazard to the public, gamma radiation dose rates were also estimated. The average activi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83c46b622387b84a63e789f67adc9711
https://pubmed.ncbi.nlm.nih.gov/33618350
https://pubmed.ncbi.nlm.nih.gov/33618350
Autor:
M. W. Chege, C Nyambura
Publikováno v:
Radiation Protection Dosimetry. 184:479-481
Six research studies involving radon and thoron in Kenya were carried out between 1997 and 2007. The studies were mainly small scale and involved a few areas scattered across Nairobi, Rift Valley, Coast and Western regions. The results were captured
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb6e79fbd52747c0b607011d38fb1739
https://doi.org/10.1093/rpd/ncz065
https://doi.org/10.1093/rpd/ncz065
Autor:
F. O. Wanjala, N. O. Hashim, Jeremiah Monari Kebwaro, A Mauring, J Bartilol, C Nyambura, M. W. Chege, D. Otwoma
Publikováno v:
Radiation protection dosimetry. 188(1)
The activity concentration of radionuclides 238U, 232Th and 40K in soil and the absorbed dose rate (ADRA) at 1 m above the ground in Ortum was determined. The activity concentration in soils ranged from 33 to 85, 20 to 67 and 148–1019 Bq kg–1, re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5283181b29a73a2e7e9c038a8409650
https://pubmed.ncbi.nlm.nih.gov/31786611
https://pubmed.ncbi.nlm.nih.gov/31786611
Publikováno v:
Groundwater for Sustainable Development. 10:100315
Water is very crucial for man, animals and plants because of its health implications in case it is polluted. Water has many uses like drinking for man and animals, domestic use and for agricultural use. The concentration levels of Cd, Ni and Pb in bo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::427e50cea0bdf77276f985a193b3a62b
https://doi.org/10.1016/j.gsd.2019.100315
https://doi.org/10.1016/j.gsd.2019.100315
Publikováno v:
Journal of Radiological Protection. 29:95-103
The effects of outdoor temperature, rainfall and wind speed on the indoor radon concentration in four types of traditional hut in Kenya were investigated by performing short-term (about 48 h) measurements with activated charcoal canisters. The concen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc166b74e9b38b44f826b67dcc8000aa
https://doi.org/10.1088/0952-4746/29/1/007
https://doi.org/10.1088/0952-4746/29/1/007