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3 (104), 2022


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Edition of the journal is supported partially by the grant of the Fogarty International Center (FIC) of the National Institute of Health and Illinois University, Chicago.

JOURNAL

ISSN 2077-7477 (Print)
ISSN 2077-7485 (Online)

A journal "Dovkillia ta zdorovia" (Environment & Health) publishes the articles on the problems in the field of medical ecology, hygiene, health protection and ecological safety.

Founder of the Journal:
State Institution "O.M. Marzeiev Institute for Hygiene and Medical Ecology of the National Academy of Medical Sciences of Ukraine"

Frequency of publication:
quarterly

Environment & HealthISSN: 2077-7477 eISSN: 2077-7485
No: 3 (88)   -   September, 2018   -   Pages: 56-62
Estimation of the radon concentrations in children's educational institutions of Kropyvnytskyi city for radon protective actions
Fryziuk M.A.1, Aksionov N.V.1, Fedorenko O.V.1, Slinchenko V.A.2, Chuchupal I.I.2
1 State Institution "O.M. Marzeiev Institute for Public Health of the NAMSU"
2 Civil Protection Department of Kirovograd Regional State Administration

ABSTRACT:
Objective: We studied the levels of radon in the indoor air in pre-school and school educational institutions of Kropyvnytskyi city, Kirovograd oblast for further effective anti-radon measures
Materials and methods: We studied equal equilibrium concentration (EEC) of 222Rn in the indoor air of children's educational institutions.
Measurements of indoor EEC of 222Rn were carried out with the help of passive track radonometry method using nitrate-cellulose film LR-115 as a detector in heating season. The time of exposure of radon accumulators was not less than 30 days. The chemical treatment of the detectors was performed in the alkali solution NaOH (2.5 M). Calculation of tracks was carried out with the help of spark counter .
Results: Studies were carried out in the children's educational institutions of Kropyvnytskyi city, Kirovograd oblast. The range of indoor EEC of 222Rn was established to be 12 Bqm-3 to 332 Bqm-3, the arithmetical mean was 85 Bqm-3, the geometrical mean was 69 Bqm-3 at a standard deviation of 59 Bqm-3. The levels of 222Rn exceeded the standard level for childrens institutions (50 Bqm-3) in 64 % of examined premises, excess of the standard was greater by 4-6 fold in 8 premises there.
Indoor EEC of 222Rn in the premises, located on the ground floor, was nearly twice as much than in the premises located above the ground floor.
Anti-radon measures should be realized in all buildings where the hygienic levels are exceeded. Optimum protective measures are established separately for each definite premise or building and are based on the analysis and assessment of the structural characteristics of the building and the ways of radon intake into it. Effectiveness of performed protective measures is determined by the repeated measurements of radon levels in the same premises.

KEYWORDS:
indoor radon, anti-radon measures
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