Indoor radon levels were measured in 221 homes in rented accommodation. In addition, buildings were registered for a series of variables describing building characteristics and used materials. The mean year value of t...Indoor radon levels were measured in 221 homes in rented accommodation. In addition, buildings were registered for a series of variables describing building characteristics and used materials. The mean year value of the indoor radon level was 30.7 （1~250） Bq/m3. The indoor radon level exceeded 100 Bq/m3 in 5.9% of the homes. Of the investigated variables, only homes in single-family terraced houses, were statistically significant. Approx： 75% of homes exceeding 100 Bq/m3 indoor radon level had levels between 100 and 200 Bq/m3 and 25% had indoor radon levels exceeding 200 Bq/m3. Significant differences in indoor radon levels were found in homes located in multi-occupant houses. Additionally, the risk of indoor radon levels exceeding 100 Bq/m3 in homes in multi-occupant houses was found to be very low, but the risk was the highest on the ground floor in a building constructed with slab on ground.展开更多
In this work, concentrations of radon indoor were measured at 10 locations in Al-Kufa and Al-Najaf cities, using RAD-7 radon monitoring system of Durridge Company USA. Some factors affecting on the radon factor have b...In this work, concentrations of radon indoor were measured at 10 locations in Al-Kufa and Al-Najaf cities, using RAD-7 radon monitoring system of Durridge Company USA. Some factors affecting on the radon factor have been studied such as times of day （morning, aitemoon and evening） and seasons of year （winter, spring, summer and autumn）. This study show that the radon concentration indoor increases at mornings, evenings, decreases at afternoon, also increases in winter and autumn, decreases in spring and summer.展开更多
文摘Indoor radon levels were measured in 221 homes in rented accommodation. In addition, buildings were registered for a series of variables describing building characteristics and used materials. The mean year value of the indoor radon level was 30.7 （1~250） Bq/m3. The indoor radon level exceeded 100 Bq/m3 in 5.9% of the homes. Of the investigated variables, only homes in single-family terraced houses, were statistically significant. Approx： 75% of homes exceeding 100 Bq/m3 indoor radon level had levels between 100 and 200 Bq/m3 and 25% had indoor radon levels exceeding 200 Bq/m3. Significant differences in indoor radon levels were found in homes located in multi-occupant houses. Additionally, the risk of indoor radon levels exceeding 100 Bq/m3 in homes in multi-occupant houses was found to be very low, but the risk was the highest on the ground floor in a building constructed with slab on ground.
文摘In this work, concentrations of radon indoor were measured at 10 locations in Al-Kufa and Al-Najaf cities, using RAD-7 radon monitoring system of Durridge Company USA. Some factors affecting on the radon factor have been studied such as times of day （morning, aitemoon and evening） and seasons of year （winter, spring, summer and autumn）. This study show that the radon concentration indoor increases at mornings, evenings, decreases at afternoon, also increases in winter and autumn, decreases in spring and summer.
