Here are the reference values currently applicable:<\/p>\n\n The new OELV of 0.66 mg\/m\u00b3 (or 0.2 ppm) represents a drastic reduction compared with the previous standards. To put this into context: it is a halving in just two years. Between 2024 and 2026, the maximum permitted exposure threshold fell from 1.65 to 0.66 mg\/m\u00b3. For refineries, fine chemicals plants, and electronics production lines, this is not a simple adjustment\u2014it is a fundamental operational change. <\/p>\n\n Benzene is classified as a Category 1A carcinogen and Category 1B mutagen under the CMR regulations (carcinogenic, mutagenic, reprotoxic). This classification reflects the serious health risks for exposed employees, justifying the increased regulatory stringency. <\/p>\n\n Legal reference: Decree No. 2024-307 of April 4, 2024, transposing Directive (EU) 2022\/431 amending Directive 2004\/37\/EC on the protection of workers from the risks related to exposure to carcinogens or mutagens.<\/p>\n\n The tightening of the benzene OELV is not an isolated decision\u2014it is part of a European harmonization of worker protection. Health authorities, including the WHO and the French National Research and Safety Institute (INRS), have accumulated scientific evidence demonstrating the carcinogenic effects of benzene at exposures well below the former thresholds. <\/p>\n\n\n\n Benzene is a volatile chemical compound that causes acute myeloid leukemia (AML) and other blood cancers in workers exposed over the long term. Even at low concentrations, repeated exposure accumulates risk in the body. Epidemiological research conducted in refineries and chemical sites has shown that workers exposed to 0.5 ppm for several years had measurable risks of leukemia. Hence the gradual reduction to 0.2 ppm. <\/p>\n<\/div>\n<\/div>\n\n This change also reflects a political objective: reducing occupational diseases linked to CMR agents. Benzene remains one of the most widely used CMR substances industrially in France<\/strong>, which justifies a particular regulatory priority. <\/p>\n<\/blockquote>\n\n Several business sectors are directly affected by the tightening of benzene OELVs. The main ones are: <\/p>\n\n Refineries and petrochemical complexes concentrate the highest benzene exposures. Benzene is a major synthesis intermediate in the production of fuels, gasoline, and chemical feedstocks. Handling areas, loading\/unloading, and equipment maintenance present chronic exposure risks. <\/p>\n<\/div>\n\n\n\n The manufacture of basic chemicals\u2014styrene, phenol, elastomers, resins, dyes\u2014involves benzene as a reagent or solvent. Synthetic chemistry laboratories, medium- and large-scale production workshops, and packaging areas are critical points. <\/p>\n<\/div>\n\n\n\n Industrial paints, automotive lacquers, adhesives, and coatings may contain residual benzene. Application, mixing, and equipment-cleaning workshops generate benzene vapors, particularly in poorly ventilated environments. <\/p>\n<\/div>\n<\/div>\n\n The manufacture of electronic components uses benzene in certain cleaning and degreasing processes. Cleanrooms and microfabrication units expose technicians to residual vapors. <\/p>\n<\/div>\n\n\n\n Auto garages, body shops, and fuel retail stations present benzene exposure via gasoline vapors (which may contain up to 1% benzene). Unleaded gasoline naturally contains benzene, resulting in moderate chronic exposure for pump attendants and mechanics. <\/p>\n<\/div>\n\n\n\n Benzene is or was used as a residual solvent in formulations. Some small perfumery and cosmetics companies continue to handle raw materials containing traces of benzene. <\/p>\n<\/div>\n<\/div>\n\n Tank maintenance operators, petroleum product carriers, and fuel depot attendants risk exposure during cleaning, inspection, or maintenance of tanks.<\/p>\n\n Since April 6, 2026, failure to comply with benzene OELVs constitutes a proven offence under the French Labour Code. Employers must implement a set of strict obligations. <\/p>\n\n Employers must regularly measure airborne benzene exposure at workstations. These measurements must be carried out: <\/p>\n\n Measurements must be performed by an accredited body or a recognized laboratory. The results must be retained and communicated to the occupational physician and the Social and Economic Committee (CSE). <\/p>\n\n Any measured exposure above 0.66 mg\/m\u00b3 (0.2 ppm) constitutes a direct breach of the regulations. There are no exemptions or grace periods beyond April 6, 2026. Companies measuring around 0.4\u20130.5 ppm in 2024\u20132025 and believing they were \u201ccompliant\u201d on a transitional basis must immediately review their prevention measures. <\/p>\n\n All workers exposed to benzene must benefit from enhanced medical surveillance, regardless of the measured exposure level. This SMR includes: <\/p>\n\n The employer must:<\/p>\n\n The DUERP must reflect the new regulations, not the former thresholds.<\/p>\n\n If a measurement exceeds 0.66 mg\/m\u00b3, the employer must:<\/p>\n\n Employees exposed to benzene must receive mandatory training including:<\/p>\n\n Failure to comply with benzene OELVs exposes the company to:<\/p>\n\n Achieving and maintaining exposure below 0.66 mg\/m\u00b3 requires an integrated approach to technical prevention. Here are proven solutions: <\/p>\n\n Direct capture of benzene vapors at the emission point remains the most effective solution. It includes: <\/p>\n\n The extraction airflow rate depends on the room configuration and the quantities handled. Typically, the target is a complete air change every 2\u20133 minutes in work areas. <\/p>\n\nPeriod<\/th> VLEP<\/th> Equivalent in ppm<\/th><\/tr><\/thead> April 5, 2024 \u2013 April 5, 2026<\/td> 1.65 mg\/m\u00b3<\/td> 0.5 ppm<\/td><\/tr> From April 6, 2026<\/td> 0.66 mg\/m\u00b3<\/td> 0.2 ppm<\/td><\/tr><\/tbody><\/table><\/figure>\n\n ![\"benzene](\"https:\/\/obera.fr\/wp-content\/uploads\/2026\/05\/vlep-benzene-2026-1024x558.jpg\")
<\/figure>\n<\/div>\n\n\n\nWhy this regulatory change?<\/h2>\n\n\n\n
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Industrial sectors affected by the new benzene OELVs<\/h2>\n\n
Oil refining and petrochemicals<\/h3>\n\n\n\n
Organic synthetic chemistry<\/h3>\n\n\n\n
Paints and coatings industry<\/h3>\n\n\n\n
Electronics and semiconductors industry<\/h3>\n\n\n\n
Automotive sector and repair<\/h3>\n\n\n\n
Perfumery and cosmetics<\/h3>\n\n\n\n
Transport and tank sector<\/h3>\n\n
Employers\u2019 legal obligations regarding benzene<\/h2>\n\n
1. Mandatory exposure measurements<\/h3>\n\n
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2. Strict compliance obligation<\/h3>\n\n
3. Enhanced medical surveillance (SMR)<\/h3>\n\n
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4. Updated single risk assessment document (DUERP)<\/h3>\n\n
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5. Action plan in the event of an exceedance<\/h3>\n\n
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6. Worker training and information<\/h3>\n\n
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7. Risk of penalties<\/h3>\n\n
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Technical solutions to comply with benzene OELVs 2026<\/h2>\n\n
1. Source capture<\/h3>\n\n
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