Desain spbu pertamina
No potential participants were excluded.InterventionParticipants volunteered a nasopharyngeal swab and a venous blood sample that were tested for SARS-CoV-2 RNA and anti-SARS-CoV-2 spike glycoprotein antibodies, respectively. Exclusion criteria included current symptoms consistent with COVID-19. Participants were invited to participate via the UHBFT social media. ObjectiveTo determine the rates of asymptomatic viral carriage and seroprevalence of SARS-CoV-2 antibodies in healthcare workers.DesignA cross-sectional study of asymptomatic healthcare workers undertaken on 24/25 April 2020.SettingUniversity Hospitals Birmingham NHS Foundation Trust (UHBFT), UK.Participants545 asymptomatic healthcare workers were recruited while at work. However, there is a need to maintain regular medical surveillance as the risk of exposure is ongoing. Overall, therefore, exposure to benzene is low in this company. The same was true for the urinary assays of trans, trans-muconic acid. All 79 urinary assays of trans, trans-muconic acid were below the biological exposure index (<500 µg/g creatinine) with an average of 37.34 µg/g creatinine, a median of 30 µg/g creatinine, and an extent from 10 to 150 µg/g creatinine.Ĭonclusion: Airborne benzene concentrations were below company limits. The average benzene concentration for all sites was 10 times lower than the regulatory average exposure value (1 ppm=3.25 mg/m3):average: 0.122pp, median: 0.053ppm and range: 0.019-1.448 ppm. Seventeen atmospheric samples were usable and 79 urinary assays at the end of the shift were carried out. Results: A total of 79 (47.88%) workers agreed to participate in the study. Secondly, urinary assays of trans, trans-muconic acid have been performed at the end of the shift in the selected workers. Materials and Methods: Firstly, it was a descriptive, cross-sectional study which consisted of benzene atmospheric quantification in a sample individual measurements of a homogeneous exposure group of workers. Objective: To estimate exposure of benzene to workers in an oil and gas production company. Check spelling or type a new query.Trans, trans-muconic acid is generally considered a useful biomarker of exposure to benzene that occurs naturally in crude oil. from .id Maybe you would like to learn more about one of these? We did not find results for: Check spelling or type a new query. TNI AD Jamin Pembangunan Proyek Pertamina Gas Jambaran. Maybe you would like to learn more about one of these? We did not find results for: Maybe you would like to learn more about one of these? Check spelling or type a new query.Ĭheck spelling or type a new query. from We did not find results for: Check spelling or type a new query. Kasdam Iskandar Muda Turut Meriahkan Fun Bike HUT. We did not find results for: Maybe you would like to learn more about one of these? Check spelling or type a new query. Maybe you would like to learn more about one of these? Check spelling or type a new query. Maybe you would like to learn more about one of these?
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