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Although large amounts of radiation exposure can be harmful to human health, research shows that granite building materials and quarries do not produce enough radon to be hazardous to homeowners and stone workers
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The potential occupational exposure in granite quarry industry due to the presence of naturally occurring radioactive material (NORM) has been investigated. The activity concentrations of (40)K, (226)Ra and (232)Th were determined using gamma-ray spectroscopy method
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Radon Exposure No Concern to Quarry Workers. April 2014 — In order to extract the beautiful granite rock that adorns so many countertops, floors and building facades in the United States, skilled quarry workers must saw or blast the raw granite into blocks to remove it from the quarry location for further fabrication. Given that soil and rock slowly and naturally emit radon gas, some sought out to study
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Workers in the granite industry face an occupational hazard: silicosis due to the crystalline silica present in inhalable dust. As granite can also present a variable, and occasionally significant, content of naturally occurring radionuclides, they may also face a radiological hazard. In order to assess the risk, a granite industry with a quarry and processing factory was selected to assess the occupational exposure
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Oct 17, 2017 · 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
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Apr 14, 2021 · To reduce the risk of lung cancer from exposure to radon, EPA recommends testing all homes for radon, regardless of whether the home contains granite countertops. Call 1-800-SOS-RADON (767-7236) or purchase do-it-yourself home radon test kits at home store retail locations, or online. Testing is inexpensive and easy—it should only take a few
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Miners’ exposure varies with the job, its proximity to the source of hazards and the effectiveness of hazard control methods. Airborne Particulate Hazards. Free crystalline silica is the most abundant compound in the earth’s crust and, consequently, is the most common airborne dust that miners and quarry-workers face. Free silica is silicon
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Sep 29, 2008 · Naturally occurring radiation in the air and soil, from cosmic rays, and even from inside our own bodies (from the food we eat) makes up an estimated 80 percent of our total radiation exposure. In the case of granite countertops, he adds, radiation is not the direct health concern; it's radon
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While there are no radiation exposure standard standards specific to granite counter tops, there are two standards that may be referenced in any professional evaluation: 1) There is general guidance on radiation exposures in buildings and radiation exposure from naturally occurring radioactive materials
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May 14, 2021 · BASELINE RADIOMETRIC SURVEY TO ACCESS GAMMA RADIATION DOSE AT SELECTED QUARRY SITES IN IGARRA AND ENVIRONS SOUTHWESTERN NIGERIA. ABSTRACT ; Economic rocks such as limestone, granite, marble etc. have natural radioactivity level. These rocks are being quarried daily in Igarra and environs
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Dec 01, 2017 · 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 inhalation of 222Rn the air was (2.1 ± 0.2) mSv / year (vari ation 0.9-5.9) in a residential area - (4,1 ± 0,2) mSv/year (variation 1.8-5.9)
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