{"doc_desc":{"title":"Bus-Exposure Matrix","idno":"10.16909-dataset-51"},"study_desc":{"title_statement":{"idno":"10.16909-dataset-51","title":"Bus-Exposure Matrix","sub_title":"A tool for assessing the physico-chemical exposure of bus drivers","alternate_title":"BEM","translated_title":"Matrice de bus-exposition"},"authoring_entity":[{"name":"Irina Guseva Canu","affiliation":"Unisant\u00e9, University Center for Primary Care and Public Health, Lausanne, Switzerland"}],"oth_id":[{"name":"Blaise Dupertuis","affiliation":"Unisant\u00e9, University Center for Primary Care and Public Health, Lausanne, Switzerland","email":"","role":"Maintenance and preparation of measuring equipment"},{"name":"Deyan Poffet","affiliation":"Unisant\u00e9, University Center for Primary Care and Public Health, Lausanne, Switzerland","email":"","role":"Support for the first measurement campaigns"},{"name":"Laurie Dorange-Pattoret","affiliation":"Unisant\u00e9, University Center for Primary Care and Public Health, Lausanne, Switzerland","email":"","role":"Support for the first measurement campaigns"}],"production_statement":{"producers":[{"name":"Viviane Remy","abbr":"REV","affiliation":"Unisant\u00e9, University Center for Primary Care and Public Health, Lausanne, Switzerland","role":"Researcher, co-author"},{"name":"David Vernez","abbr":"DVE","affiliation":"Unisant\u00e9, University Center for Primary Care and Public Health, Lausanne, Switzerland","role":"co-author"},{"name":"Thomas Charreau","abbr":"TCR","affiliation":"Unisant\u00e9, University Center for Primary Care and Public Health, Lausanne, Switzerland","role":"Data manager"},{"name":"Giles Innocent","abbr":"GIN","affiliation":"Biomathematics and Statistics Scotland, The King\u2019s Buildings, Edinburgh, Scotland","role":"Co-author, assistance in modeling"}],"copyright":"(c) 2024, Unisant\u00e9, University Center for Primary Care and Public Health, Lausanne, Switzerland","funding_agencies":[{"name":"Federal Office of Transport","abbr":"FOT","role":"Financing"},{"name":"Federal Office of Environment","abbr":"FOEN","role":"Financing"}],"grant_no":"Grant No. 780000982 BAFU-320.1-01-60677\/2\/1\/10"},"distribution_statement":{"contact":[{"name":"Irina Guseva Canu","affiliation":"Unisant\u00e9, University Center for Primary Care and Public Health, Lausanne, Switzerland","email":"Irina.guseva-canu@unisante.ch","uri":""}]},"version_statement":{"version":"version 2.1\nThe BEM contains the exposures (mean and stadard deviation) to whole-body vibration, floor vibration, equivalent noise, peak noise, high- and low-frequency electric fields, low-frequency magnetic fields, air exchange rate, and outdoor\/indoor particulate pollution ratios for PM10 and ultrafine particles for 710 bus models (Brand and model).","version_date":"2025-04-07","version_notes":"The exposure values where updated and new bus models were added."},"study_info":{"keywords":[{"keyword":"Bus","vocab":"","uri":""},{"keyword":"Occupation exposure","vocab":"","uri":""},{"keyword":"Noise","vocab":"","uri":""},{"keyword":"Vibration","vocab":"","uri":""},{"keyword":"Electric fields","vocab":"","uri":""},{"keyword":"Magnetic fields","vocab":"","uri":""},{"keyword":"Air particles","vocab":"","uri":""}],"abstract":"Swiss bus drivers suffer from musculoskeletal disorders, fatigue, and stress, and have an excess of mortality from lung cancer and suicide. However, their occupational exposure is poorly documented. \nWe created a bus-exposure matrix (BEM) to determine exposures (mean and standard deviation) to equivalent noise, peak noise, whole-body vibration (WBV), floor vibration, high-frequency and low-frequency electric fields, low-frequency magnetic fields, air exchange rate and the ratio between internal and external air particles in PM10 and ultrafine particles for 710 bus models used in Switzerland since 1980. For this, we made a bus inventory, identified ten bus-models representative of the Swiss fleet evolution, and conducted static and dynamic exposure measurement campaigns between November 2021 and May 2023. The measured values were then extended to the entire fleet using Integrated Nested Laplace Approximation (INLA) models. The choice of predictors, technical bus characteristics from the bus inventory, included in the model was based on directed acyclic graphs.\nThe BEM is an original tool to assess retrospective exposure to physico-chemical hazards that will enable further research in occupational health of bus drivers.","coll_dates":[{"start":"2021\/11\/17","end":"2023\/05\/30","cycle":""}],"nation":[{"name":"Switzerland","abbreviation":"CHE"}],"geog_coverage":"National coverage","analysis_unit":"Bus model","universe":"Bus drivers","data_kind":"Observation data\/ratings [obs]","notes":"bus drivers' exposure to physico-chemical hazards"},"method":{"data_collection":{"data_collectors":[{"name":"Viviane Remy","abbr":"REV","role":"","affiliation":"Unisant\u00e9, University Center for Primary Care and Public Health, Lausanne, Switzerland"}],"coll_mode":["Other [oth]"],"sources":[{"name":"","origin":"","characteristics":""}],"coll_situation":"The measurement campaigns took place in French-speaking Switzerland between November 17, 2021, and May 30, 2023. A total of ten bus models were measured.\nExposure values were modeled between June 2023 and April 2025","act_min":"Giles Innocent (data modeling)\nDavid Vernez (measurement protocol)\nIrina Guseva Canu","cleaning_operations":"We collected the measured data and then calculated average exposure values for the various physico-chemical hazards for urban and regional roads where applicable.\nThen, for each physicochemical exposure, we created mathematical models to extend these exposure values to the entire Swiss bus fleet. We used INLA to model the data. The modeled values were then checked to ensure that they were feasible (no negative concentrations) and consistent with existing literature.\nData analysis and modeling with the free software R, version 4.2.3"}},"data_access":{"dataset_availability":{"access_place":"Unisant\u00e9 Data repository","access_place_url":"https:\/\/doi.org\/10.16909\/dataset\/51","status":"Access on request, limited to research purpose only"},"dataset_use":{"contact":[{"name":"Irina Guseva Canu","affiliation":"Unisant\u00e9, University Center for Primary Care and Public Health, Lausanne, Switzerland","email":"Irina.guseva-canu@unisante.ch","uri":""},{"name":"Documentation and data unit (UDD)","affiliation":"Unisant\u00e9, University Center for Primary Care and Public Health, Lausanne, Switzerland","email":"udd.data@unisante.ch","uri":"https:\/\/www.unisante.ch\/fr\/formation-recherche\/bibliotheque"}],"cit_req":"Remy, V.F.M., Innocent G., Vernez, D., and Guseva Canu, I. Bus-Exposure Matrix. Center for Primary Care and Public Health (Unisant\u00e9), University of Lausanne, Switzerland. Version 1.0 of the licensed dataset (03\/2024), provided by the Unisant\u00e9 Research Data Repository. DOI:10.16909\/DATASET\/51","conditions":"The dataset is available on request for research purpose only.\n\t\t  To get access to data, the following procedure must be followed:\n\u00b7 Create an account (Login \u2192 Register)\n\u00b7 Go to the Data Catalog and click on the study of interest (https:\/\/doi.org\/10.16909\/dataset\/51)\n\u00b7 Once on the study page, click on the tab Data Access\n\u00b7 Fill in the application form and submit\nImportant: Before submitting a request, please check whether the data is at all useful for your project. The codebooks with the corresponding information are filed under Documentation and do not require registration.","disclaimer":"The user of the data acknowledges that the original collector of the data, the authorized distributor of the data, and the relevant funding agency bear no responsibility for use of the data or for interpretations or inferences based upon such uses."}}},"schematype":"survey"}