اتصل

هاتف

+0086-371-86162511

عنوان

تشنغتشو ، الصين

البريد الإلكتروني

[email protected]

granite quarry radiation exposure

Assessment of occupational exposure in a granite quarry and

In order to assess the risk, a granite industry with a quarry and processing factory was selected to assess the occupational exposure. Three main potential pathways were observed: external irradiation, inhalation of granite dust, and radon exposure. The Results and conclusions: Granite quarry workers receive double radiation exposure of 222Rn due to exposure in the workplace and at home. The load in the workplace due to Doses from radon 222 irradiation for workers of the granite

احصل على السعر

Natural radioactivity measurements in the granite rock of quarry

Results and discussion. The activity concentrations of natural radionuclides ( 238 U, 232 Th and 40 K) in the granite rocks of selected quarry sites in Johor state are In-situ background radiation survey of the quarry environment indicated radiation exposure levels ranging from 0.012 to 0.017 mRh –1 with a total average of Environmental risk assessment of background radiation,

احصل على السعر

Radiological risk assessment of naturally occurring

An appraisal of activity concentrations of 40 K, 232 Th, 238 U, radiation exposure levels and the potential radiological hazards in the granite rock of selected This study intends to ascertain the activity concentrations of naturally occurring radionuclides in granite used for road and building construction in Kano State, Assessment of Radiation Hazard Indices Caused by Naturally

احصل على السعر

Occupational exposure due to naturally occurring

The activity concentration of 40 K, 226 Ra and 232 Th in granite samples has been used to evaluate occupational exposure dose to workers in granite quarry Therefore, the present study tends to estimate the radiation dose of natural radionuclides (238 U, 232 Th, and 40 K) in granite quarry soil and edible plants from two Health risk assessment of radiation dose of background

احصل على السعر

Natural radioactivity measurements in the granite rock of quarry

Abstract. This study was conducted to determine the concentration of natural radionuclides in the granite rocks of selected quarry sites in Johor state, Malaysia In order to assess the risk, a granite industry with a quarry and processing factory was selected to assess the occupational exposure. Three main potential Assessment of occupational exposure in a granite quarry

احصل على السعر

Occupational exposure due to naturally occurring

The rock fragments are further processed at the processing mill (situated near the quarry) into different sizes. Non-nuclear mining and milling industries have the potential of causing radiological problem . Hence, this work aims at assessing occupational radiation exposure due to NORM in the granite quarry industry. MATERIALS AND Although radon exposure from granite countertops is not a legitimate concern, radon exposure from other sources can pose health and safety concerns for homeowners. According to the United States Radon Exposure from Granite: Debunking Health

احصل على السعر

Assessing exposure to granite countertops--Part 1: Radiation

Annual effective radiation doses were estimated from measured dose rates and human activity patterns while accounting for the geometry of granite countertops in a model kitchen. Gross radioactivity, gamma activity, and dose rate varied significantly among and within slabs of granite with ranges for median levels at the slab surface of ND toRadon Exposures in a Granite Quarry EXECUTIVE SUMMARY Multiple studies have been published demonstrating that exposures to both radon and direct radiation from granite countertops are very low, and that this is not an issue of concern for homeowners (Allen et al., 2010; Chen et al., 2010; Myatt et al., 2010; Llope, 2011; Allen ENVIRONMENTAL HEALTH & ENGINEERING, INC.

احصل على السعر

Cancer risk assessment for granite quarry workers from

hence the risk of cancer due to outdoor gamma radiation exposure were estimated. The mean life time cancer risk for each person working in the granite quarries of the study area are found to be high compared to the world average values. The results show that the workers of the granite quarry are at higher radiation risk compared to others.The studied quarry sites comprise of Associated Granite Industry (AGI), Kamad Quarry (IJM) and Kim Seng Quarry in Johor Bahru city, the capital of the State of Johor, located at a latitude of 1°29′0 N and a longitude of 103°44′0 E, in the southeast corner of the Johor map (Burton, 1973).Hanson Quarry Products (Kulai), in Kuali city, Kulai.Natural radioactivity measurements in the granite rock of quarry

احصل على السعر

Assessment of radiological hazard of quarry products from

The presence of naturally occurring radionuclides in construction materials originating from quarry products offers radiation exposure both inside and outside the building environments. This is mainly due to gamma radiation of 40 K and members of the uranium and thorium decay series. The term “quarry products” comprises a wide number Building materials that are made up of sandstone, concrete, brick, natural stone, gypsum, and granite are highly unlikely to contain radioactive material that will increase radiation dose above the low levels of background radiation we receive on a daily basis. Radioactive material in building materials may add to indoor radon levels.Radiation Studies CDC: Radiation from Building Materials

احصل على السعر

Correlation Analysis of Natural Radionuclides, Radon

internal radiation exposure to the public from natu-ral radioactivity (Mahamood et al., 2020; Megumi & Mamuro, 1974; Sundal et al., 2008). Activities lead-ing to quarry industries and sand wining may lead to enhance levels radioactivity as well as the eect on the soil properties (Detoni et al., 2020; Makori2016 Sep;36 (3):641-652. doi: 10.1088/0952-4746/36/3/641. ) was observed in the quarry and stockpile, due to quarry faces and granite blocks. The effective dose due to granite dust inhalation was 0.182 ± 0.009 mSv yr in the worst case scenario (3 mg m dust load in air and no use of filter masks). Thus, the mean value of the effective dose fromAssessment of occupational exposure in a granite quarry and

احصل على السعر

Environmental risk assessment of background radiation,

The quarry environment is a good scenario of low-level gamma radiation exposure due to NORMs in quarry rocks and soil. Continuous exposure to this low-level radiation overtime by the quarry workers and other people doing business in the area may result to long-term health effects. Meanwhile, in granite quarrying soil from Ikole-Ekiti, The present study aims to assess natural radioactivity and its radiological hazards and dose parameters in granite waste samples. These wastes arise through uranium chemical leaching, then they were scrutinized by gamma ray spectrometry (HPGe detector) the concentration of U-238 samples ranged between (556 and 1479) Bq/kg, Th Assessment of radiation risk from waste generated from

احصل على السعر

(PDF) Radiological Health Implications of Radiation Levels In

Radiological Health Implications of Radiation Levels In Rock Fragments From Quarry Sites In Akamkpa, South- South Nigeria December 2021 DOI: 10.9790/4861-1306020409The mean value obtained for the various radiological indicators estimated for Johnson quarry are 1.03 x 10-3 µSv/hr, 1.81 µSv/y and 6.34 x 10-3 for exposure rate, annual effective doseOccupational exposure due to naturally occurring

احصل على السعر

Radiation Exposure Level in some Granite Quarry sites within

Radiation exposure level in some granite quarry sites in Ohimini and Gwer-East Local Government Areas of Benue State was carried out using radiation meter (radiation alert inspector). The research investigated only the exposure dose rate, the mean absorbed dose and the mean annual effective dose equivalent of the radiation.for a period of time after exposure. Ionizing radiation in our environment can also occur either naturally or can be produced artificially through human activities such as mining, oil Josang stone quarry km 40 Enugu-Abakaliki express way ,Ishielu LGA 0.219 0.384 Akpegu Mgbo stone mine,Ohaukwu LGA 0.349 0.611 Royal Salt Ltd,Ikwo Outdoor Background Radiation Levels in Mining

احصل على السعر

Assessment of occupational exposure in a granite quarry

A slight increment (0.016–0.076 mSv yr −1) was observed in the quarry and stockpile, due to quarry faces and granite blocks. The effective dose due to granite dust inhalation was 0.182 ± 0.009 mSv yr −1 in the worst case scenario (3 mg m −3 dust load in air and no use of filter masks).Overall, 40 K has the highest concentration in the granite rocks of the quarry sites, followed by 232 Th and the least for 238 U. Natural environmental radioactivity and associated external exposure due to gamma radiation depend primarily on the geological and geographical conditions, and appear at different levels in the soils of Natural radioactivity measurements in the granite rock of quarry

احصل على السعر

IJERPH Free Full-Text Lung Function and Respiratory

Environmental exposure to dust from quarrying activities could pose health dangers to the population living nearby. This study aimed to investigate the health effects of dust exposure on people living close to quarry sites and compared them with those who live far from the quarry sites. A cross-sectional comparative study was conducted among 79 Operation of some quarries can release radioactive materials from the deep soil to other environments that potentially impact human health. The present study investigated concentrations of radon and other radionuclides in surface soil, air, and water around two quarries in the south of Vietnam. Indoor radon concentrations ranged Background Radiation in some Quarries and Quarry Lakes in

احصل على السعر

<< Previous:الكاولين مخروط محطم السعر في أنغولا
>> Next:الذهب معدات التعدين شاكر

حقوق النشر © 2004-2020 بواسطة China Liming Heavy Industry Science and Technology Co.Ltd. جميع الحقوق محفوظة