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This report describes the harmonised methodology developed for the collection of biological samples (blood, urine and exhaled breath) and environmental industrial hygiene samples in the occupational study conducted in Task 8.5. Itprovides an overview of the results obtained for the chemical analyses of urinary, exhaled breath condensate and blood chromium and serum per-/poly fluorinated alkyl substances.&nbsp

The report presents the research plan for a second occupational study which is focussed on diisocyanate and the e-waste exposures.Thediisocyanate exposure will be undertaken in the following settings: (a)the manufacturing and repair of large vehicles (non-booth spraying of e.g. boats/planes), (b) the use of diisocyanate based hot-melt glues in different sectors, and (c) construction sectorwhich includes different sources of diisocyanates exposure (floorings/screeds, insulation). The aim is to provide new data on exposures in the specified sector. The e-waste study will include an assessment of exposures to metals (lead, inorganic mercury, cadmium and chromium), phthalates and flame retardants. The main aim is to support sustainable processing of e-waste in Europe.

This is an initial report on the study design and collection of samples from occupational studies under Task 8.5 of the HBM4EU project. The occupational studies aim to collect EU relevant data on work related exposures to prioritised substances using harmonised methods and questionnaires. Hexavalent chromium is the focus of the first occupational study as there was a regulatory need for occupational exposure data as well as the requirement to test new more sensitive methods for biomonitoring.

The objective of this study within Task 8.5 of the HBM4EU project is to contribute to the establishment of a robust scientific basis for the regulatory EU institution to set-up occupational exposure limits and related biological limits values, as well as reference values for the general population and to study the impact of the recent regulatory measures to exposures in European workplaces.

This report summaries the finding from a review of data available about the use of biomonitoring in workplace settings to assess exposure. The application varies from one country to the next. The report provides an overview of the situation regarding the availability of data in some European countries.