Даваа–Баасан 08:30–20:00 · Бямба 09:00–16:00
library@mnums.edu.mn
/

Ц.Найдансүрэн

Loading...
Thumbnail Image
Товч нэр
Ц.Найдансүрэн
Бүтэн нэр
Цэндээхүү Найдансүрэн
Латин нэр
Tsendeekhuu Naidansuren
Албан тушаал
Ахлах багш
Харьяалал
ORCID

Settings

Now showing 1 - 2 of 2
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Association between occupational risk factors and lung function among small-scale gold miners in Mongolia: a cross-sectional study
    (Japan Society for Occupational Health, 2026)
    Dansran, Densenbal
    ;
    Chimed-Ochir, Odgerel
    ;
    Dashtseren, Ichinnorov
    ;
    Bandi, Solongo
    ;
    Khishigdavaa, Garamjav
    OBJECTIVES: This study aimed to assess the association between occupational risk factors and lung function among gold miners in a northern Mongolian province. METHODS: A cross-sectional study was conducted among 143 gold miners in July 2024. Data were collected through structured interviews, physical examinations, chest X-rays, and spirometry. Occupational exposures included workplace type (administrative, factory, or underground), dust exposure level (low, moderate, high, based on work duration and underground working hours), and N95 mask use. Lung function outcomes were assessed using forced expiratory volume in 1 second (FEV1), evaluated both both as an absolute value (liters) and as impaired lung function, defined by FEV1 <80% of predicted. Multivariable logistic regression was used to examine associations with impaired lung function, and linear regression was applied to assess determinants of absolute FEV1, adjusting for age, sex, and smoking status. RESULTS: Among 143 workers, mean FEV1 was 3.39 L; and 23.8% had FEV1 <80% of predicted. No occupational exposure was significantly associated with impaired lung function (FEV1 <80%). However, underground work was significantly associated with reduced absolute FEV1 (β = -0.22 L; p=0.026). N95 mask use was not significantly associated with impaired lung function after adjustment. CONCLUSIONS: Early lung function decline was not captured by the standard threshold. Therefore, monitoring absolute FEV1 may offer a more sensitive measure of early pulmonary changes among miners. Regular health monitoring and enhanced protective measures are urgently needed to prevent occupational lung diseases in resource-limited mining settings, including Mongolia and other developing countries.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Demographic and Occupational Factors Associated With Silicosis in Workers in Gold Mines in Mongolia: A Cross-Sectional Study
    (The University of Occupational and Environmental Health, Japan, 2026)
    Myeryemkhaan, Allabyergyen
    ;
    Dansran, Densenbal
    ;
    Dashtseren, Ichinnorov
    ;
    Bandi, Solongo
    ;
    Tsendeekhuu, Naidansuren
    Understanding country-specific demographic and occupational factors is crucial in optimizing silica exposure control measures. This study investigated demographic and occupational factors associated with silicosis in workers in gold mines in Mongolia. This cross-sectional study was conducted in July 2024 at two private gold mining companies in Mongolia's western regional provinces. In total, 147 participants completed pre-administered questionnaires. Silicosis was diagnosed by chest X-rays, which were interpreted based on the International Labour Organization classification system. Associations between risk factors and silicosis were evaluated with logistic regression. The prevalence of silicosis was 16.3% (24 cases). Participants aged 30-39 years were at significantly higher risk than other age groups (adjusted odds ratio [OR] 5.40, 95% confidence interval [CI] 1.32-21.97). Those engaged in loading explosives and blasting had a 5.3-fold increased risk compared with those performing other tasks (95% CI 1.28-22.32). High cumulative exposure to dust, defined by longer working years and daily exposure hours, was strongly associated with silicosis (adjusted OR 5.52, 95% CI 1.19-25.52). Use of N95 masks did not demonstrate a statistically significant protective effect. Our findings highlight the need for enhanced silica exposure control measures. Possible measures include limiting working hours and cumulative exposure durations, and implementing engineering controls (e.g., ventilation and water suppression systems) to reduce airborne silica levels, especially for those engaged in loading explosives and blasting. Such interventions are important in reducing the burden of silicosis in the Mongolian gold mining industry.
    Scopus© Citations 1