| Summary: | This study investigates the inhalation risks of occupational exposure to alcohol vapours among workers in university laboratories. The study focused on 3 types of alcohol which are ethanol, methanol, and isopropyl alcohol present in the university laboratories, and subsequently, the associated health risks. The research aims to assess exposure levels and potential health risks to inhaling alcohol vapour during routine laboratory activities such as disinfection and solvent preparation. The samples were collected from the breathing zones of the workers using the NIOSH 1400 method and were analysed using a gas chromatography-flame ionisation detector. Key factors influencing exposure, such as air velocity, relative humidity, and temperature were evaluated. Results showed that ethanol had the highest individual concentration at 2604.65 mg m-3. This value has exceeded the Permissible Exposure Limit (PEL) of 1880 mg m-3 according to USECCH Regulations 2000. The non-carcinogenic risk of ethanol also surpassed the reference value of 1 indicating that there are potential health risks due to the exposure to ethanol. Considering the high exposure concentrations and their associated non-carcinogenic risks, the use of personal protective equipment (PPE) and the installation of ventilation systems are needed to reduce the exposure concentration of alcohol among the workers.
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