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 NATIONAL WORKING ENVIRONMENT MONITORING STATION

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Simulating ammonia release in the working environment using CONTAM software: When technology helps to see invisible risks

Simulating ammonia release in the working environment using CONTAM software: When technology helps to see invisible risks

  • Mô tả Ammonia (NH3) is a familiar chemical compound, widely used in many industries such as fertilizer production, food processing, refrigeration industry, chemicals, etc. Although it plays an important role in production, due to having characteristics like rapid evaporation, strong dispersion and high toxicity, ammonia is considered one of the chemicals that pose many potential risks to workers’ health if not strictly managed and controlled in the workplace.
    • Impacts of di-n-butyl phthalate (DBP) exposure on the health of workers in the rubber processing industry: A warning from epidemiological research in the Central region

    Impacts of di-n-butyl phthalate (DBP) exposure on the health of workers in the rubber processing industry: A warning from epidemiological research in the Central region

  • Mô tả In the rubber processing industry, di-n-butyl phthalate (DBP) is a compound commonly used as a plasticizer, contributing to the flexibility of products. However, few people know that DBP is a substance that can negatively affect the health of workers if they are exposed frequently and for prolonged periods. This is one of the concerning potential hazards in manufacturing facilities in the Central region – where the rubber industry is rapidly developing. In reality, working conditions in rubber processing factories are often characterized by high temperatures, a strong chemical odor, and arduous working conditions. Although physical safety factors have been improving, the risks from chemical exposure like DBP have not received adequate attention. Consequently, a field study conducted by the Branch of National Institute of Occupational Safety and Health in the Central Vietnam, VNNIOSH, at two rubber production facilities has provided a clearer insight into the impact of DBP on the health of workers.
    • Survey of the environment and factors related to health in workers occupationally exposed to trichloroethylene

    Survey of the environment and factors related to health in workers occupationally exposed to trichloroethylene

  • Mô tả Comparative cross-sectional descriptive study was conducted from September 2022 to September 2023.The study was conducted on a total of 146 workers in groups exposed to trichloroethylne (TCE) in the working environment and groups not exposed to TCE in the working environment. TCE levels are monitored at the average shift worker's breathing area. At the same time, the interview was based on a prepared questionnaire on personal characteristics, clinical symptoms of eyes, skin, respiration, and nerves of employees. The research results we recorded: The group was exposed to TCE in the working environment, the average TCE concentration was 6.6 ± 5.1 mg/m3. Meanwhile, in the group not exposed to TCE in the working environment, the TCE concentration was below the detection threshold (detection limit - MDL is 1.516 µg/m3). In the group exposed to TCE in the labor market, the rate of respiratory symptoms was the most (21.9%), followed by eyes (13.7%), nerves (11,%), skin (6.9%). Workers in the group exposed to TCE in the labor market had a 2.3-fold higher incidence of respiratory symptoms (cough, shortness of breath, wheezing, rhinitis) than the non-contact group (95% CI 1.03-5.0), the difference was statistically significant. Respiratory symptoms among workers in the TCE-exposed group in the working environment were higher than among those not exposed to TCE. However, exposure follow-up studies, combined with subclinical manifestations, are required before a definitive causal association between TCE and worker health can be established.
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    NATIONAL WORKING ENVIRONMENT MONITORING STATION

    Address: 99 Tran Quoc Toan str - Cua Nam Ward, Ha Noi city.

    Tel: (+8424) 22172473; 22172480 - Fax: (8424) 3822 3011

    Hotline: 0941042838

    Email: moitruonglaodong@vnniosh.vn 

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