1ST INTERNATIONAL CONGRESS ON HEALTH SCIENCES, Bitlis, Turkey, 23 May 2024, pp.120-123
Introduction
222Rn (Radon) is a radioactive noble gas in the natural series of uranium
(238U) and is 7.5 times heavier than air, invisible to the naked eye, colorless,
odorless and tasteless. Radon potential in a region; The uranium and radium
content in rocks and soil in that area may be a result of properties such as porosity,
permeability and moisture content, as well as meteorological and seasonal
changes. The air pressure inside a dwelling is generally lower than the air pressure
of the soil underneath. For this reason, radon gas released from soil and rock leaks
into the house from the foundations, basements and pipes of buildings. 218Po,
214Pb, 214Bi and 214Po, which are short-lived decay products of radon, can settle in
the lungs and cause biological damage when inhaled. Various amounts of radon
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gas are found in closed areas such as homes, workplaces, schools, tunnels, subway
stations and under ground mines around the world.
Purpose: In this study, it was aimed to examine the dependence of indoor
radon concentrations in houses residing in Van Central districts (Tuşba, İpekyolu,
Edremit) on geological and meteorological factors.
Materials and Methods: In the study, indoor radon concentration in a
total of 66 houses residing in the central districts of Van was calculated using LR-
115 (Type2, single-sided) film detectors. Measurements were carried out monthly
for a year. The study was produced from Thesis No: 842026.
Results: Meteorological values in the central districts of Van were taken
from the 14th Regional Directorate of Van Meteorology and monthly earthquake
numbers were taken from the Van Provincial Disaster and Emergency Directorate
and compared with monthly radon concentration values. No statistical correlation
was found between monthly earthquake data and temperature parameters and
radon concentration. Since a decrease in wind speed was observed in the months
other than November-December, February-March and April-May, concentration
values also decreased in line with these months. No statistical correlation was
found in the comparison made with the number of monthly rainy days and the
amount of precipitation. However, the lower radon concentration in winter months
compared to autumn can be attributed to the decrease in radon release from the
soil due to snow cover.
Conclusion: According to the results of the current study, no statistical
correlation was found even though radon concentration values were compatible
with geological and meteorological factors in some months. Considering the
negative health effects of radon, ventilation should be provided in closed spaces,
and systems should be designed to evacuate radon gas to the atmosphere before
entering the building, taking into account the ground survey and geological
structure during the project design phase of the buildings.