Challenge 4.2: Process-generated carcinogens

Process generated carcinogens occur as a by-product of a work process. These need extra attention because of they won’t have labels and there may not be any reference to them in Safety Data Sheets. A large proportion of workers in the EU are potentially exposed to process-generated contaminants, in particular to RCS and diesel exhaust fumes.

The adopted amendments of the carcinogens directive lay down occupational limit values for carcinogens generated by work processes, e.g. diesel engine emissions, respirable crystalline silica dust, wood dust, welding fumes. These carcinogens occur frequently at various workplaces and should be prioritised in a Roadmap Strategy for the upcoming years.


Challenge Team

  • Austria (Challenge lead), Netherlands


  • Member States, Labour Inspectorates, European Commission, SLIC
  • Sectoral organisations, BusinessEurope, Workers organisations, ETUC (European Trade Union Confederation)
  • Researchers, OSH-experts
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Challenge updates

EU project on silica dust on construction sites completed

February 7, 2022

On 18 January 2022, the final seminar of the EU-funded project “Reducing Respirable Crystalline Silica Dust Effectively” took place online. Some 100 experts from nearly 20 countries participated in this seminar. The EU project was initiated by the European social partners for the construction industry EFBWW and FIEC. Especially against the background of the lowering […]

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Report Expert Seminar on Challenge 4.2: Strategies to Reduce Exposure to Process Generated Carcinogens

January 10, 2022

On Tuesday the 23rd of November 2021, around 50 experts and stakeholders affiliated with carcinogens gathered for an interactive online expert seminar on process-generated carcinogens (PGCs). The goal of the seminar was to bring stakeholders together to contribute to a way forward in regard to process-generated carcinogens in Europe. An additional goal was to explore […]

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Workshop challenge 4.2 ‘process-generated carcinogens’

November 26, 2021

The Roadmap on Carcinogens Challenge 4.2 aims to get more grip on carcinogens created as a by-product during a work process, so called process-generated carcinogens (PGCs). An international online workshop was organized on 23 November 2021 to share knowledge and thougths on elimination and control strategies to accelerate reduction in exposure to PGCs in Europe. […]

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