Radiation Protection and Environment最新文献_第10页

The saga of atomic energy in India: Why is nuclear power still subcritical? 印度原子能的传奇:为什么核能仍然是次要的?

Radiation Protection and Environment Pub Date : 2020-04-01 DOI: 10.4103/rpe.rpe_42_20

D. Rao

引用次数: 4

Measurement of natural radioactivity of building materials used in the southern valley region of Manipur, India 印度曼尼普尔南部山谷地区使用的建筑材料的天然放射性测量

Radiation Protection and Environment Pub Date : 2020-04-01 DOI: 10.4103/rpe.rpe_12_20

B. Sharma, S. Singh, N. Singh, H. Singh

{"title":"Measurement of natural radioactivity of building materials used in the southern valley region of Manipur, India","authors":"B. Sharma, S. Singh, N. Singh, H. Singh","doi":"10.4103/rpe.rpe_12_20","DOIUrl":"https://doi.org/10.4103/rpe.rpe_12_20","url":null,"abstract":"A study of natural radionuclides of different types of houses was conducted at 493 houses in the southern valley region of Manipur, India. The average annual effective doses of gamma radiation level in indoor and outdoor were estimated from the measurements using Micro R-survey meter and found as 1.25 ± 0.10 (range: 1.02–1.38) mSv/y and 0.76 ± 0.08 (range: 0.58–0.99) mSv/y for reinforced cement concrete (RCC) houses, followed by 1.07 ± 0.09 (range: 0.95–1.19) mSv/y and 0.76 ± 0.08 (range: 0.67–0.95) mSv/y for Adobe laid earthen houses, 1.05 ± 0.09 (range: 0.78–1.24) mSv/y and 0.74 ± 0.08 (range: 0.58–0.91) mSv/y for Assam-type (AT) brick houses, 0.83 ± 0.09 (range: 0.40–1.07) mSv/y and 0.72 ± 0.08 (range: 0.23–0.97) mSv/y for AT mud houses and 0.73 ± 0.08 (range: 0.66–0.82) mSv/y and 0.74 ± 0.07 (range: 0.64–0.82) mSv/y for AT katcha houses. The activity concentration226Ra,232Th, and40K of building materials was evaluated using the gamma ray spectrometry and found average value as 42.4 (range: 23.0–69.9) Bq/kg, 111.3 (range: 23.8–214.5) Bq/kg, and 1369.0 (range: 995.7–2284.6) Bq/kg. Moreover, the annual effective dose conceived from the building material was found as 1.1 mSv/y from Portland cement, 1.4 mSv/y from sand, and 1.5 mSv/y from brick. Seasonal variations of indoor effective dose rates were observed in RCC houses; the highest dose rate was observed during the premonsoon season followed by postmonsoon and least with monsoon season.","PeriodicalId":32488,"journal":{"name":"Radiation Protection and Environment","volume":"43 1","pages":"82 - 87"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42292428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Drinking water quality assessment in the water around a clay mine in Kannur district, Kerala 喀拉拉邦坎努尔地区一个粘土矿周围水域的饮用水质量评估

Radiation Protection and Environment Pub Date : 2020-04-01 DOI: 10.4103/rpe.rpe_13_20

Bhavana Manoj, V. Vineethkumar, V. Prakash

{"title":"Drinking water quality assessment in the water around a clay mine in Kannur district, Kerala","authors":"Bhavana Manoj, V. Vineethkumar, V. Prakash","doi":"10.4103/rpe.rpe_13_20","DOIUrl":"https://doi.org/10.4103/rpe.rpe_13_20","url":null,"abstract":"In the present investigation, the drinking water quality assessment in the water sources around china clay mine in Madayi Panchayath of Kannur District, Kerala, has been done. A study has been undertaken to understand, whether the quality of drinking water has any adverse effect from the mine which has been stopped mining for the last few years. The water samples were collected from ten randomly selected open wells around the china clay mine. The water quality parameters such as turbidity, pH, electrical conductivity, acidity, alkalinity, total dissolved solids, total hardness as (CaCO3), and presence of calcium, magnesium, chloride, fluoride, iron, nitrate, ammonia, sulfate, and phosphate are identified and quantified following appropriate methods and techniques. The results obtained were compared with the permissible limit suggested by the Bureau of Indian Standards for drinking water specification (IS 10500: 2012). It is observed that, some of the open well samples have excessive hardness and alkalinity. This may be attributed to the wastes disposed from the china clay mine as the lands nearby this mining site are filled and leveled with these wastes. The prolonged consumption of water from these wells may cause various health disorders to the inhabitants. Hence, it is advised to process the water from such wells to reduce the hardness and alkalinity for safe consumption. In addition to this, in depth studies on heavy metal content of water are also needed to assess the quality of water sources in and around the china clay mine region, for the safe consumption.","PeriodicalId":32488,"journal":{"name":"Radiation Protection and Environment","volume":"43 1","pages":"88 - 93"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43747538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Environmental radiation mapping methodology and applications 环境辐射测绘方法及应用

Radiation Protection and Environment Pub Date : 2020-04-01 DOI: 10.4103/rpe.rpe_35_20

S. Saindane, R. Pujari, S. Murali, M. Narsaiah, S. Dhole, N. Karmalkar

引用次数: 0

Update on guest editorial, “Radiological safety and radiation emergency preparedness” (Radiat Prot Environ 2020;43:1-5) 客座社论“辐射安全和辐射应急准备”的最新情况(辐射保护环境2020;43:1-5)

Radiation Protection and Environment Pub Date : 2020-04-01 DOI: 10.4103/rpe.rpe_41_20

D. Rao

引用次数: 0

238U/226Ra or 232Th/228Ra: What is being measured in dietary items by gamma spectrometry? 238U/226Ra或232Th/228Ra:用伽马能谱法测量食物中的什么?

Radiation Protection and Environment Pub Date : 2020-04-01 DOI: 10.4103/rpe.rpe_36_20

D. Rao

引用次数: 0

Estimation of radon exhalation rate from a brick wall during various stages of construction by measuring exhalation rates from various building materials 通过测量不同建筑材料的氡释放率，估算砖墙在不同施工阶段的氡释放率

Radiation Protection and Environment Pub Date : 2020-01-01 DOI: 10.4103/rpe.RPE_38_19

Manish Kumar, B. Sahoo, R. Kumar, N. Sharma

引用次数: 1

Measurement of natural radioactivity in soil dust samples along roadways in high commercial areas of the Ketu South district of the Volta Region, Ghana 测量加纳Volta地区Ketu南区高商业区道路沿线土壤尘埃样本中的天然放射性

Radiation Protection and Environment Pub Date : 2020-01-01 DOI: 10.4103/rpe.RPE_34_19

M. Addo, J. Lomotey, Bernard Osei, Kwame Appiah

{"title":"Measurement of natural radioactivity in soil dust samples along roadways in high commercial areas of the Ketu South district of the Volta Region, Ghana","authors":"M. Addo, J. Lomotey, Bernard Osei, Kwame Appiah","doi":"10.4103/rpe.RPE_34_19","DOIUrl":"https://doi.org/10.4103/rpe.RPE_34_19","url":null,"abstract":"There are increasing awareness and concern about the radiological impact of dust from soils along the roadways on petty traders and commuters in major commercial areas of Ghana. Soils in such commercial areas can be contaminated by road dust that could alter their radiological characteristics. This is because of the general exposure of road dust to environmental elements such as industrial and urban activities and also exhaust fumes from the vehicles. In the present study, 52 surface soil samples were collected along six roadways in the Ketu South District of the Volta Region, Ghana. The study area is one of the high commercial activities and consequently high traffic density. The measures of the specific activity concentration of238U,232Th, and40K in the samples were taken using high-purity germanium (HPGe) gamma-ray spectrometry. The results were evaluated to assess the radiological impact due to roadside soil in the area. The activity concentration in the samples ranged from 74.62 to 156.3 Bq/kg for238U, with an average of 112.4 Bq/kg. The activity concentrations of232Th ranged from 6.5 to 29.0 Bq/kg, with an average of 14.6 Bq/kg and that of40K ranged from 83.76 to 224.27 Bq/kg with an average of 141.02 Bq/kg. The results were used to estimate the radiological parameters of the study soils. The levels of radium equivalent activity (Raeq), absorbed dose rate (D), and annual effective dose (E) in them were lower than the recommended or safe limits proposed by international bodies such as UNSCEAR (2000) or ICRP (1991). These findings indicated that soils in the studied area had the normal levels of radiation and were therefore radiologically safe.","PeriodicalId":32488,"journal":{"name":"Radiation Protection and Environment","volume":"43 1","pages":"6 - 12"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43614177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Salient features of ICRP publication 142: Radiological Protection from naturally occurring radioactive material in industrial processes ICRP出版物142的突出特点：工业过程中天然放射性物质的辐射防护

Radiation Protection and Environment Pub Date : 2020-01-01 DOI: 10.4103/rpe.RPE_18_20

D. Rao

引用次数: 1

Natural radionuclides in rock and radiation exposure index from uranium mine sites in parts of Northern Nigeria 岩石中的天然放射性核素和尼日利亚北部部分地区铀矿场的辐射暴露指数

Radiation Protection and Environment Pub Date : 2020-01-01 DOI: 10.4103/rpe.RPE_7_20

Samuel Ogana John, I. Usman, T. Akpa, S. Abubakar, G. Ekong

{"title":"Natural radionuclides in rock and radiation exposure index from uranium mine sites in parts of Northern Nigeria","authors":"Samuel Ogana John, I. Usman, T. Akpa, S. Abubakar, G. Ekong","doi":"10.4103/rpe.RPE_7_20","DOIUrl":"https://doi.org/10.4103/rpe.RPE_7_20","url":null,"abstract":"Radiation exposure in humans can emanate from natural radionuclides through uranium and thorium decay series as well as40K due to emitted ionising radiations. It is important to estimate the exposure of humans to the diverse sources of radiation. In this study, the activity concentrations of natural radionuclides238U and232Th in granitic rock samples from uranium mine sites in parts of Northern Nigeria were measured, by inductively coupled plasma-mass spectrometry. The highest values of238U and232Th concentrations (924.56 ± 17.13 and 21.96 ± 1.28 Bq/kg, respectively) were observed at Mika-I and Riruwai. Furthermore, the radiological exposure parameters (i.e., absorbed dose rate in air [D], annual effective dose [external], radium equivalent activity (Raeq), external exposure index (Hex), internal exposure index (Hin), and representative level index (Iγand Iα) were estimated and compared to the international recommended values. In terms of terrestrial gamma radiation from granitic rock within the study area, it does not pose any significant radiation exposure to the workers and dwellers.","PeriodicalId":32488,"journal":{"name":"Radiation Protection and Environment","volume":"43 1","pages":"36 - 43"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43772900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2